31 62 16.16 Amendment 0006.pdf

Por t Monmout h Phase I I Cont r act 4B NJ PORTMONPI I CT4B Amendment 0006

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STEEL H- PI LES

PART 1 GENERAL

1. 1 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

AMERI CAN WELDI NG SOCI ETY ( AWS)

AWS D1. 1/ D1. 1M ( 2020) St r uct ur al Wel di ng Code - St eel

ASTM I NTERNATI ONAL ( ASTM)

ASTM A572/ A572M ( 2018) St andar d Speci f i cat i on f or Hi gh- St r engt h Low- Al l oy Col umbi um- Vanadi um St r uct ur al St eel

ASTM D1143/ D1143M ( 2007; R 2013) Pi l es Under St at i c Axi al Compr essi ve Load

ASTM D3689 ( 2007; E 2013; R 2013) St andar d Test Met hods f or Deep Foundat i ons Under St at i c Axi al Tensi l e Load

ASTM D3966/ D3966M ( 2007) St andar d Test Met hods f or Deep Foundat i ons Under Lat er al Load

ASTM D4945 ( 2017) St andar d Test Met hod f or Hi gh- St r ai n Dynami c Test i ng of Deep Foundat i ons

1. 2 SUBMI TTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s not havi ng a " G" desi gnat i on ar e f or i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL PROCEDURES:

SD- 02 Shop Dr awi ngs

Pi l e spl i ces; G, DO

Submi t det ai l dr awi ngs of pi l e spl i ces pr i or t o f abr i cat i on.

Pi l e pl acement ; G, DO

Submi t pi l e pl acement pl an at l east 30 days pr i or t o del i ver y of pi l es t o t he j ob s i t e.

SD- 03 Pr oduct Dat a

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Pi l e dr i v i ng equi pment ; G, DO

Submi t descr i pt i ons of pi l e dr i v i ng equi pment at l east 30 days pr i or t o commencement of wor k.

Pi l e dr i v i ng r ecor ds; G, DO

Submi t t he pr oposed f or m f or compi l i ng pi l e dr i v i ng r ecor ds 30 days pr i or t o commencement of wor k.

Del i ver y, st or age, and handl i ng; G, RO

Submi t del i ver y, st or age, and handl i ng pl ans f or pi l es at l east 30 days pr i or t o del i ver y of pi l es t o t he j ob s i t e.

Pi l e t est s; G, DO

Submi t pi l e l oad t est pl an at l east 30 days pr i or t o i nst al l i ng any t est pi l es. Appr oval of t he pl an shal l not r el i eve t he Cont r act or of t he r esponsi bi l i t y f or st r uct ur al and oper at i onal adequaci es of t he t est i ng syst em.

SD- 04 Sampl es

Test pi l es; G, DO

SD- 05 Desi gn Dat a

Wave equat i on anal ysi s; G, DO

Submi t wave equat i on anal ysi s.

SD- 06 Test Repor t s

Pi l e dr i v i ng t est s; G, DO

Submi t pi l e dr i v i ng t est dat a wi t hi n one ( 1) week af t er each t est i s compl et ed.

Pi l e dr i v i ng anal yzer ; G, DO

Submi t pi l e dr i v i ng anal yzer dat a wi t hi n one ( 1) week af t er each t est i s compl et ed.

Pi l e l oad t est s; G, DO

Submi t f our copi es of t he l oad t est r epor t f or each pi l e t est ed wi t hi n one ( 1) week af t er t he l oad t est i s compl et ed.

Dynami c t est i ng of pi l es; G, DO

Submi t r epor t s of t he dynami c t est i ng of pi l es wi t hi n one ( 1) week af t er dynami c t est i ng i s compl et ed.

SD- 11 Cl oseout Submi t t al s

Pi l e dr i v i ng r ecor ds

Submi t t o t he Cont r act i ng Of f i cer compl et e and accur at e t est and

SECTI ON 31 62 16. 16 Page 2 j ob pi l e dr i v i ng r ecor ds as speci f i ed i n par agr aph ent i t l ed " Recor ds" of t hi s sect i on, wi t hi n 15 cal endar days af t er compl et i on of dr i v i ng.

1. 3 DELI VERY, STORAGE, AND HANDLI NG

Conf or m al l del i ver y, st or age, and handl i ng of mat er i al s t o t he r equi r ement s speci f i ed her ei n. Devel op and submi t pl ans f or t he del i ver y, st or age, and handl i ng of pi l es.

1. 3. 1 Del i ver y and St or age

St ack pi l es dur i ng del i ver y and st or age so t hat each pi l e i s mai nt ai ned i n a st r ai ght posi t i on and i s suppor t ed ever y 10 f eet or l ess al ong i t s l engt h ( ends i ncl usi ve) t o pr event exceedi ng t he maxi mum camber or sweep.

Do not st ack pi l es mor e t han 5 f eet hi gh.

1. 3. 2 Handl i ng

Li f t pi l es usi ng a cr adl e or mul t i pl e poi nt s pi ck- up t o ensur e t hat t he maxi mum per mi ssi bl e camber or sweep i s not exceeded due t o i nsuf f i c i ent suppor t , except t hat a one- poi nt pi ck- up may be used f or l i f t i ng pi l es t hat ar e not ext r emel y l ong i nt o t he dr i v i ng l eads. Poi nt pi ck- up devi ces must be of t he t ype t hat c l amp t o bot h pi l e f l anges at each pi ck- up poi nt . Hol es may be bur ned i n t he f l anges or webs of pi l es above t he cut of f l engt h f or l i f t i ng pi l es i nt o t he l eads. Do not dr ag pi l es acr oss t he gr ound.

I nspect pi l es f or excessi ve camber and sweep and f or damage bef or e t r anspor t i ng t hem f r om t he st or age ar ea t o t he dr i v i ng ar ea and i mmedi at el y pr i or t o pl acement i n t he dr i v i ng l eads. Camber , cur vat ur e i n t he pi l e i n t he di r ect i on nor mal t o t he pi l e f l anges, must be measur ed wi t h t he pi l e f l ange base l ayi ng on a f l at sur f ace and i s t he di st ance bet ween t he f l ange base at t he mi d- l engt h of t he pi l e and t he f l at sur f ace. Sweep, cur vat ur e i n t he pi l e i n t he di r ect i on par al l el t o t he pi l e f l anges, must be measur ed wi t h t he pi l e f l ange t i ps l ayi ng on a f l at sur f ace and i s t he di st ance bet ween t he f l ange t i ps at t he mi d- l engt h of t he pi l e and t he f l at sur f ace. The maxi mum per mi ssi bl e camber or sweep i s 2 i nchesover t he l engt h of t he pi l e. Pi l es havi ng excessi ve camber or sweep wi l l be r ej ect ed.

PART 2 PRODUCTS

2. 1 MATERI ALS

2. 1. 1 H- Pi l es

ASTM A572/ A572M, Gr ade 50. Pr ovi de t est pi l es i dent i cal t o t hose used el sewher e i n t he pr oj ect . Pr ovi de H- pi l es of t he shape and sect i ons shown. Det er mi ne l engt hs of pi l es as speci f i ed i n par agr aph " I nst al l at i on, " subpar agr aph " Lengt hs of Job Pi l es" .

2. 1. 2 Pi l e Spl i ces

ASTM A572/ A572M, Gr ade 50 f or spl i ce pl at es.

2. 1. 3 Pi l e Poi nt s

Pi l e poi nt s may not be needed f or t he pr oj ect .

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2. 1. 4 Pi l e Caps ( Dr i ve Cap I nser t s)

ASTM A572/ A572M, Gr ade 50. Pi l e caps must conf or m t o det ai l s shown.

2. 1. 5 Pi l e Tensi on Anchor s

Pi l e t ensi on anchor s may not be needed f or t he pr oj ect .

2. 1. 6 FABRI CATI ON

Fabr i cat i on must conf or m t o t he r equi r ement s shown and as speci f i ed her ei n and i n Sect i on 05 50 13 MI SCELLANEOUS METAL FABRI CATI ONS.

2. 1. 6. 1 Pi l e Spl i ces

Fabr i cat e pi l e spl i ces as shown. Submi t det ai l dr awi ngs of spl i ces i n accor dance wi t h par agr aph " Submi t t al s. "

2. 1. 6. 2 Pi l e Caps ( Dr i ve Cap I nser t s)

At t ach pi l e caps ( dr i ve cap i nser t s) as shown. Gr ound t he t op of pi l es suf f i c i ent l y smoot h t o pr ovi de a good cont act sur f ace f or st r uct ur al - shape pi l e caps.

2. 1. 7 CORROSI ON PROTECTI ON

A coal t ar epoxy pai nt syst em or equi val ent must be appl i ed f or at l east t op 10 f eet of t he H- pi l es unl ess speci f i ed ot her wi se. The mi ni mum coat i ng t hi ckness i s 16- mi l . See speci f i cat i on 09 97 02 f or i nf or mat i on r egar di ng coal t ar epoxy pai nt i ng syst ems.

PART 3 EXECUTI ON

3. 1 PI LE DRI VI NG EQUI PMENT

Sel ect t he pr oposed pi l e dr i v i ng equi pment , i ncl udi ng hammer s and ot her r equi r ed i t ems, and submi t compl et e descr i pt i ons of t he pr oposed equi pment i n accor dance wi t h par agr aph " Submi t t al s. " Fi nal appr oval of t he pr oposed equi pment i s subj ect t o t he sat i sf act or y compl et i on and appr oval of pi l e t est s. Changes i n t he sel ect ed pi l e dr i v i ng equi pment wi l l not be al l owed af t er t he equi pment has been appr oved except as di r ect ed. No addi t i onal cont r act t i me wi l l be al l owed f or Cont r act or pr oposed changes i n t he equi pment .

3. 1. 1 Pi l e Dr i v i ng Hammer s

Pr ovi de i mpact t ype pi l e dr i v i ng hammer s.

3. 1. 1. 1 I mpact Hammer s

Pr ovi de st eam, ai r , hydr aul i c, or di esel - power ed i mpact pi l e hammer s of t he s i ngl e- act i ng, doubl e- act i ng, or di f f er ent i al - act i ng t ype. The si ze or capaci t y of hammer s must be as r ecommended by t he hammer manuf act ur er f or t he t ot al pi l e wei ght and t he char act er of t he soi l f or mat i on t o be penet r at ed. The r at ed dr i v i ng ener gy of hammer s i s l i mi t ed t o a mi ni mum of 15, 000 f oot - pounds. Hammer s must be capabl e of , and so demonst r at ed dur i ng t he devel opment of r ef usal cr i t er i a, har d dr i v i ng i n excess of 20 bl ows per i nch. Pr ovi de boi l er , compr essor , or engi ne capaci t y suf f i c i ent

SECTI ON 31 62 16. 16 Page 4 t o oper at e hammer s cont i nuousl y at t he f ul l r at ed speed. Hammer s must have a gage t o moni t or hammer bounce chamber pr essur e f or di esel hammer s or pr essur e at t he hammer f or ai r and st eam hammer s. Thi s gage must be oper at i onal dur i ng t he dr i v i ng of pi l es and be mount ed i n an accessi bl e l ocat i on f or moni t or i ng by t he Cont r act or and t he Cont r act i ng Of f i cer .

Pr ovi de t wo spar e oper at i onal bounce chamber r ead out uni t s on si t e.

Pr ovi de bounce chamber pr essur e gage cor r ect i on t abl es and char t s f or t he t ype and l engt h of hose t o be used wi t h t he pr essur e gage t o t he Cont r act i ng Of f i cer . Obt ai n dr i v i ng ener gy by use of a heavy r am and a shor t st r oke wi t h l ow i mpact vel oci t y, r at her t han a l i ght r am and a l ong st r oke wi t h hi gh i mpact vel oci t y. Posi t i on a pi l e cap or dr i ve cap bet ween t he pi l e and hammer . Pl ace hammer cushi on or cap bl ock bet ween r am and t he pi l e cap or dr i ve cap. Hammer cushi on or cap bl ock must have consi st ent el ast i c pr oper t i es, mi ni mi ze ener gy absor pt i on, and t r ansmi t hammer ener gy uni f or ml y and consi st ent l y dur i ng t he ent i r e dr i v i ng per i od. I n accor dance wi t h par agr aph " Submi t t al s, " submi t t he f ol l owi ng i nf or mat i on f or each i mpact hammer pr oposed:

a. Make and model .

b. Ram wei ght ( pounds) .

c. Anvi l wei ght ( pounds) .

d. Rat ed st r oke ( i nches) .

e. Rat ed ener gy r ange ( f oot - pounds) .

f . Rat ed speed ( bl ows per mi nut e) .

g. St eam or ai r pr essur e, hammer , and boi l er or compr essor ( psi ) .

h. Rat ed bounce chamber pr essur e cur ves or char t s, i ncl udi ng pr essur e cor r ect i on char t f or t ype and l engt h of hose used wi t h pr essur e gage ( pounds per squar e i nch) .

i . Pi l e dr i v i ng cap, make, and wei ght ( pounds) .

j . Cushi on bl ock di mensi ons and mat er i al t ype.

k. Power pack descr i pt i on.

3. 1. 1. 2 Vi br at or y Hammer s

The use of v i br at or y hammer s i s dependent upon sat i sf act or y dr i v i ng and l oad t est i ng of pi l es. Fi nal appr oval of t he pr oposed hammer and ot her dr i v i ng equi pment i s subj ect t o t he sat i sf act or y compl et i on and appr oval of t he pi l e t est s. The si ze or capaci t y of hammer s must be as r ecommended by t he hammer manuf act ur er f or t he t ot al pi l e wei ght and t he char act er of t he soi l f or mat i on t o be penet r at ed. The hammer must pr ovi de f or mai nt ai ni ng a r i gi d connect i on bet ween t he hammer and t he pi l e. I n accor dance wi t h par agr aph " Submi t t al s, " submi t t he f ol l owi ng i nf or mat i on f or each vi br at or y hammer pr oposed:

a. Make and model .

b. Eccent r i c moment ( i nch- pounds) .

c. Dynami c f or ce ( t ons) .

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d. St eady st at e f r equency or f r equency r ange ( cycl es per mi nut e) .

e. Vi br at i ng wei ght ( pounds) .

f . Ampl i t ude ( i nches) .

g. Maxi mum pul l capaci t y ( t ons) .

h. Non- vi br at i ng wei ght ( pounds) .

i . Power pack descr i pt i on.

3. 1. 2 Pi l e Dr i v i ng Leads

Suppor t and gui de hammer s wi t h suspended l eads, f i xed ext ended l eads or f i xed under hung l eads. For dr i v i ng bat t er ed pi l es, suppor t and gui de i mpact hammer s wi t h t hr ee- axi s, f i xed- ext ended l eads capabl e of 1 H and 2- 1/ 2 V f or e and af t bat t er and 1 H on 6 V si de bat t er , wi t h 30 degr ee r ot at i on each si de of an axi s r unni ng al ong t he cent er l i ne of r ot at i on of t he cr ane t hr ough t he cent er l i ne of t he l eads. For dr i v i ng bat t er ed pi l es, suppor t and gui de vi br at or y hammer s wi t h f i xed ext ended l eads or t empl at es. Pr ovi de t wo i nt er medi at e suppor t s f or t he pi l e i n t he l eads t o r educe t he unbr aced l engt h of t he pi l e dur i ng dr i v i ng and pul l i ng.

3. 1. 3 Pi l e Ext r act or s

Pi l e ext r act or s may be vi br at or y or i mpact pi l e dr i v i ng hammer s. I mpact hammer s ar e r equi r ed f or pul l i ng pi l es not ext r act abl e wi t h v i br at or y hammer s.

3. 2 I NSTALLATI ON

I nspect pi l es when del i ver ed and when i n t he l eads i mmedi at el y bef or e dr i v i ng. Cut pi l es at cut of f gr ade by an appr oved met hod. Wher e cut of f i s bel ow exi st i ng gr ound or mudl i ne el evat i on, compl et e excavat i on, sheet i ng, and dewat er i ng bef or e dr i v i ng pi l e t o cut of f el evat i on.

3. 2. 1 Lengt hs of Job Pi l es

The est i mat ed quant i t i es of pi l es ar e gi ven f or bi ddi ng pur poses onl y.

The Cont r act i ng Of f i cer wi l l det er mi ne t he act ual l engt hs of pi l es r equi r ed t o be dr i ven bel ow cut of f el evat i on f or t he var i ous l ocat i ons i n t he wor k and wi l l f ur ni sh t he Cont r act or a quant i t i es l i s t i ndi cat i ng l engt hs and l ocat i ons of al l pi l es t o be i nst al l ed. These act ual l engt hs wi l l be det er mi ned f r om t he r esul t s of t he pi l e t est s speci f i ed i n par agr aph " Pi l e Test s. " Wher e r equi r ed bear i ng capaci t i es ar e at t ai nabl e wi t h pi l es of l esser l engt h t han t hose speci f i ed, shor t er pi l es may be used subj ect t o pr i or wr i t t en appr oval . . The Cont r act or ' s equi pment must be abl e t o dr i ve pi l es wi t h l engt hs r angi ng f r om 50 f eet t o 100 f eet .

3. 2. 2 Pi l e Dr i v i ng Recor ds

Devel op a f or m f or compi l i ng pi l e dr i v i ng r ecor ds, whi ch must be appr oved, f or r ecor di ng pi l e dr i v i ng dat a.

Compi l e and submi t accur at e r ecor ds of t he pi l e dr i v i ng oper at i ons on t he appr oved f or m i n accor dance wi t h par agr aph " Submi t t al s. " I ncl ude i n dr i v i ng r ecor ds f or each pi l e dat e dr i ven, pi l e i dent i f i cat i on number , SECTI ON 31 62 16. 16 Page 6 cr oss sect i on shape and pi l e di mensi ons, l ocat i on, devi at i ons f r om desi gn l ocat i on, or i gi nal l engt h, gr ound el evat i on, t op el evat i on, t i p el evat i on, bat t er al i gnment , descr i pt i on of hammer used, number of bl ows r equi r ed f or each f oot of penet r at i on t hr oughout t he ent i r e l engt h of t he pi l e and f or each i nch of penet r at i on i n t he l ast f oot of penet r at i on, t ot al dr i v i ng t i me i n mi nut es and seconds, and any ot her per t i nent i nf or mat i on as r equi r ed or r equest ed such as unusual dr i v i ng condi t i ons, i nt er r upt i ons or del ays dur i ng dr i v i ng, damage t o pi l e r esul t i ng f r om dr i v i ng, heave i n adj acent pi l es, r edr i v i ng, weavi ng, obst r uct i ons, j et t i ng, pr edr i l l i ng, and dept h and descr i pt i on of voi ds f or med adj acent t o t he pi l e.

Addi t i onal dat a r equi r ed t o be r ecor ded f or i mpact hammer s i ncl udes t he r at e of hammer oper at i on, make, s i ze, and t he l engt h of t he bounce hose.

Addi t i onal dat a r equi r ed t o be r ecor ded f or v i br at or y hammer s i ncl udes hammer power pack descr i pt i on, make, s i ze, hor sepower appl i ed t o pi l e, and hammer oper at i ng f r equency.

3. 2. 3 Pi l e Pl acement and Tol er ances i n Dr i v i ng

Devel op and submi t a pi l e pl acement pl an whi ch shows t he i nst al l at i on sequence and t he met hods pr oposed f or cont r ol l i ng t he l ocat i on and al i gnment of pi l es Compl et e al l r emoval of unsui t abl e mat er i al and densi f i cat i on of f oundat i on f i l l i n t he ar ea pr i or t o t he pl acement of pi l es f or dr i v i ng. Accur at el y pl ace pi l es i n t he cor r ect l ocat i on and al i gnment s, bot h l at er al l y and l ongi t udi nal l y, and t o t he ver t i cal or bat t er l i nes i ndi cat ed. Est abl i sh a per manent base l i ne t o pr ovi de f or i nspect i on of pi l e pl acement by t he Cont r act i ng Of f i cer dur i ng pi l e dr i v i ng oper at i ons pr i or t o dr i v i ng j ob pi l es and mai nt ai n dur i ng t he i nst al l at i on of t he j ob pi l es.

A f i nal l at er al devi at i on f r om t he cor r ect l ocat i on at t he cut of f el evat i on of not mor e t han 1 i nch wi l l be per mi t t ed f or ver t i cal and bat t er ed pi l es. Mani pul at i on of pi l es wi l l not be per mi t t ed. A var i at i on of not mor e t han 0. 25 i nch per f oot of pi l e l engt h f r om t he ver t i cal f or ver t i cal pi l es nor mor e t han 0. 25 i nch per f oot of pi l e l engt h f r om t he r equi r ed angl e f or bat t er pi l es wi l l be per mi t t ed. I n addi t i on t o compl yi ng wi t h t he t ol er ances st at ed her ei n, t he c l ear di st ance bet ween t he heads of pi l es and t he edges of caps must be not l ess t han 16 i nches.

Wi t h pr i or appr oval of t he Cont r act i ng Of f i cer , t he Cont r act or may pr ovi de addi t i onal concr et e and r ei nf or cement t o mai nt ai n t he r equi r ed mi ni mum cl ear di st ance. Redesi gn of pi l e caps or addi t i onal wor k r equi r ed due t o i mpr oper l ocat i on of pi l es i s t he r esponsi bi l i t y of t he Cont r act or . A f i nal var i at i on i n r ot at i on of t he pi l e about t he cent er l i ne of t he web of not mor e t han 7. 5 degr ees i s per mi t t ed. A ver t i cal devi at i on of not mor e t han 1 i nch f r om t he cor r ect cut of f el evat i ons shown i s per mi t t ed.

I nspect pi l es f or heave. Redr i ve heaved pi l es t o t he r equi r ed t i p el evat i on. Mai nt ai n t he cor r ect r el at i ve posi t i on of al l pi l es by t he use of t empl at es or by ot her appr oved means. Pi l es damaged or not l ocat ed pr oper l y or exceedi ng t he maxi mum l i mi t s f or r ot at i on, l at er al and ver t i cal devi at i on, or var i at i on i n al i gnment must be pul l ed and new pi l es r edr i ven, or pr ovi de addi t i onal pi l es, at a l ocat i on di r ect ed at no addi t i onal cost t o t he Gover nment .

3. 2. 3. 1 Sur vey Dat a

Af t er t he dr i v i ng of each pi l e gr oup i s compl et e and bef or e super i mposed concr et e i s pl aced, pr ovi de t he Cont r act i ng Of f i cer wi t h an as- dr i ven sur vey showi ng act ual l ocat i on and t op el evat i on of each pi l e. Do not pr oceed wi t h pl aci ng concr et e unt i l t he Cont r act i ng Of f i cer has r evi ewed

SECTI ON 31 62 16. 16 Page 7 t he sur vey and ver i f i ed t he saf e l oad f or t he pi l e gr oup dr i ven. Pr esent a sur vey i n such f or m t hat i t gi ves devi at i on f r om pl an l ocat i on i n t wo per pendi cul ar di r ect i ons and el evat i ons of each pi l e t o near est hal f i nch.

Sur vey must be pr epar ed and cer t i f i ed by a l i censed l and sur veyor .

3. 2. 4 Pi l e Penet r at i on Cr i t er i a

The cont r ol l i ng r ef usal bl ow count ( number of bl ows r equi r ed t o at t ai n t he f i nal i nch of penet r at i on) f or j ob pi l es wi l l be det er mi ned by t he Cont r act i ng Of f i cer . The r equi r ed r ef usal bl ow count wi l l be est abl i shed subsequent t o t he anal ysi s of pi l e t est s as speci f i ed i n par agr aph " Pi l e Test s. "

3. 2. 5 Pi l e Dr i v i ng

Not i f y t he Cont r act i ng Of f i cer 30 days pr i or t o t he dat e pi l e dr i v i ng i s t o begi n. Do not dr i ve pi l es wi t hi n 100 f eet of concr et e l ess t han 7 days ol d. Dr i ve j ob and t est pi l es wi t h hammer s of t he same model and manuf act ur er , same ener gy and ef f i c i ency, and usi ng t he same dr i v i ng syst em. Oper at e hammer s at al l t i mes at t he speed and under t he condi t i ons r ecommended by t he manuf act ur er . Wher e heave i s ant i c i pat ed, t he sequence of i nst al l at i on must be such t hat pi l e heave i s mi ni mi zed by st ar t i ng pi l e dr i v i ng at t he cent er of t he gr oup and pr oceedi ng out war d and by dr i v i ng ver t i cal pi l es pr i or t o dr i v i ng bat t er ed pi l es wher e pr act i cabl e. Pr i or t o dr i v i ng and wi t h t he pi l e head seat ed i n t he hammer , check each pi l e t o ensur e t hat i t has been al i gned cor r ect l y and t hat t he or i ent at i on of t he web about t he cent er l i ne i s as shown. Once pi l e dr i v i ng has begun, keep condi t i ons such as al i gnment and bat t er const ant . Check and moni t or t he al i gnment of bat t er ed pi l es dur i ng dr i v i ng wi t h an accur at e bat t er boar d l evel and sur veyi ng i nst r ument .

Dr i ve each pi l e cont i nuousl y and wi t hout i nt er r upt i on unt i l t he r equi r ed r ef usal bl ow count has been at t ai ned. Devi at i on f r om t hi s pr ocedur e wi l l be per mi t t ed onl y when dr i v i ng i s st opped by causes t hat r easonabl y coul d not have been ant i c i pat ed. A pi l e t hat can not be dr i ven t o t he r equi r ed dept h because of an obst r uct i on, as i ndi cat ed by a sudden unexpl ai ned change i n bl ow count and dr i f t i ng, must be pul l ed and r edr i ven or cut of f and abandoned, whi chever i s di r ect ed. Af t er pi l es ar e dr i ven, cut of f squar e as r equi r ed at t he i ndi cat ed cut of f el evat i on. Backf i l l any voi ds ar ound pi l es or abandoned hol es f or pul l ed pi l es wi t h sand and compact t o t he same densi t y as t he sur r oundi ng soi l . I f , i n dr i v i ng, i t i s f ound t hat pi l e i s not of suf f i c i ent l engt h t o gi ve t he capaci t y speci f i ed, not i f y t he Cont r act i ng Of f i cer , who wi l l det er mi ne t he pr ocedur e t o be f ol l owed.

3. 2. 5. 1 Spl i c i ng Pi l es

A pi l e t hat has not r eached t he r equi r ed r ef usal bl ow count when t he t op has been dr i ven t o t he cut of f el evat i on must be spl i ced as shown and dr i ven t o a suf f i c i ent dept h t o devel op t he r equi r ed r ef usal bl ow count .

When appr oved, pr ovi de spl i ces of t he f ul l penet r at i on but t wel d t ype or pr opr i et ar y pr ef abr i cat ed spl i cer s l eeves. For wel ded spl i ces, spl i ces shal l be wi t h a cont i nuous f ul l penet r at i on but t wel d i n accor dance wi t h AWS D1. 1/ D1. 1M or as appr oved by t he Cont r act i ng Of f i cer . Ul t r asoni c t est i ng shal l be per f or med on al l wel ds i n accor dance wi t h AWS D1. 1/ D1. 1M.

Use onl y one spl i ce per l engt h of pi l e. Avoi d f i el d spl i ces f or l engt hs under 80 f eet . Const r uct spl i ces t o mai nt ai n t he t r ue al i gnment and posi t i on of t he pi l e sect i ons. Spl i ces must devel op t he f ul l st r engt h of t he pi l e i n bot h bear i ng and bendi ng. Spl i c i ng oper at i ons must be per f or med bef or e pi l e dr i v i ng any sect i on of t he pi l e. Spl i ces must be

SECTI ON 31 62 16. 16 Page 8 pl aced i n t he mi ddl e t hi r d of t he pi l e. The pi l e must be dr i ven wi t h t he shor t er spl i ced l engt h of t he over al l l engt h bei ng dr i ven f i r st .

3. 2. 5. 2 Jet t i ng

Jet t i ng of pi l es i s not be per mi t t ed.

3. 2. 5. 3 Pr edr i l l i ng

Pr edr i l l i ng i s not be per mi t t ed.

3. 2. 5. 4 Heaved Pi l es

When dr i v i ng pi l es i n c l ust er s or under condi t i ons of r el at i vel y c l ose spaci ng, per f or m obser vat i ons t o det ect heave of adj acent pi l es.

Backdr i ve heaved pi l es t o or i gi nal r ef usal bl ow count wi t hout addi t i onal cost t o t he Gover nment .

3. 2. 5. 5 Pul l ed Pi l es

Pul l and r epl ace pi l es damaged or i mpai r ed f or use dur i ng dr i v i ng wi t h new pi l es, or cut of f and abandon and dr i ve new pi l es as di r ect ed wi t hout addi t i onal cost t o t he Gover nment . The Cont r act i ng Of f i cer may r equi r e t hat any pi l e be pul l ed f or i nspect i on. Redr i ve pi l es pul l ed as di r ect ed and f ound t o be i n sui t abl e condi t i on at anot her l ocat i on as di r ect ed.

Repl ace pi l es pul l ed as di r ect ed and f ound t o be damaged wi t h new pi l es at t he Cont r act or ' s expense.

3. 2. 5. 6 Long Pi l es

Handl e and dr i ve pi l es of a hi gh sl ender ness r at i o car ef ul l y t o pr event over st r ess. Pr ovi de pi l e dr i v i ng r i g wi t h r i gi d suppor t s so t hat l eads r emai n accur at el y al i gned. Wher e a hi gh degr ee of accur acy i s r equi r ed, er ect t empl at es or gui de f r ames at or c l ose t o t he gr ound or wat er sur f ace.

3. 2. 5. 7 Wel di ng

Al l wel di ng must be i n conf or mance wi t h AWS D1. 1/ D1. 1M.

3. 3 PI LE TESTS

Pi l e Test s - Per f or m pi l e dr i v i ng t est s and pi l e l oad t est s as as di r ect ed. The Cont r act i ng Of f i cer wi l l devel op t he cor r el at i on bet ween pi l e dr i v i ng r esi st ance and pi l e capaci t y dur i ng t he pi l e dr i v i ng t est s and pi l e l oad t est s f or t he sel ect ed pi l e dr i v i ng syst em.

Based on t he cor r el at i ons devel oped, t he Cont r act i ng Of f i cer wi l l det er mi ne t he r ef usal bl ow count f or t he j ob pi l es. Changes i n t he appr oved pi l e dr i v i ng syst em dur i ng or af t er compl et i on of t est s wi l l not be al l owed unl ess addi t i onal t est s ar e per f or med as di r ect ed t o est abl i sh t he cor r el at i on bet ween dr i v i ng r esi st ance and pi l e capaci t y f or t he pr oposed changed syst em. For changes i n t he appr oved pi l e dr i v i ng syst em pr oposed by t he Cont r act or , per f or m r equi r ed addi t i onal pi l e dr i v i ng t est s and pi l e l oad t est s at t he Cont r act or ' s expense. No addi t i onal cont r act t i me wi l l be al l owed. I n accor dance wi t h par agr aph " Submi t t al s, " devel op and submi t a det ai l ed pi l e l oad t est pl an whi ch i ncl udes dr awi ngs as appr opr i at e and cont ai n t he f ol l owi ng i nf or mat i on:

a. Met hod of r eact i ng st at i c t est l oads.

SECTI ON 31 62 16. 16 Page 9

b. Met hod of suppor t i ng r ef er ence beams.

c. Met hod of at t achi ng and suppor t i ng di al gages f or measur i ng pi l e movement s.

d. Met hod of appl y i ng st at i c t est l oad t o pi l es.

e. Met hod of set up of secondar y measur ement syst em ( sur veyor ' s l evel , l aser beam, et c. ) .

f . Det ai l s of st r ai n r od f abr i cat i on and i nst al l at i on.

g. Det ai l s of l oadi ng f r ame and r eact i on syst ems desi gn, i ncl udi ng desi gn comput at i ons and f abr i cat i on det ai l s.

h. Cal i br at i on cur ves f or t he l oad cel l and r eadout devi ce.

Appr oval of t he pl an does not r el i eve t he Cont r act or of t he r esponsi bi l i t y f or st r uct ur al and oper at i onal adequaci es of t he t est i ng syst em.

3. 3. 1 Test Pi l es

Pr ovi de 20 t est pi l es of t he same si ze and t ype as speci f i ed f or j ob pi l es. Fur ni sh t est pi l es wi t h l engt h as shown on t he dr awi ngs and dr i ve t hem t he addi t i onal dept h, i f di r ect ed. Pr ovi de t est pi l es of t he i ndi cat ed l engt hs and pl ace at t he i ndi cat ed or di r ect ed l ocat i ons. Dr i ve t est pi l es wi t h t he same equi pment speci f i ed i n par agr aph " Pi l e Dr i v i ng Equi pment " and i n t he same manner speci f i ed i n par agr aph " Pi l e Dr i v i ng" f or j ob pi l es. Recor d t he dr i v i ng r ecor d dat a f or each t est pi l e dr i ven as speci f i ed i n par agr aph " Pi l e Dr i v i ng Recor ds. " Pr ovi de and oper at e a pi l e dr i v i ng anal yzer as speci f i ed by t he manuf act ur er dur i ng t he dr i v i ng of each t est pi l e. I f appr oved af t er t est compl et i on, i ncl ude pr oper l y l ocat ed t est pi l es i n t he f i ni shed wor k. Wi t hdr aw 5 t est pi l es af t er r eachi ng t he speci f i ed t i p el evat i on t o pr ovi de f or v i sual i nspect i on of t he pi l e.

3. 3. 2 Pi l e Dr i v i ng Test s

Per f or m 7 pi l e dr i v i ng t est s. The Cont r act i ng Of f i cer wi l l be pr esent dur i ng each pi l e dr i v i ng t est . Compl et e al l pi l e dr i v i ng t est s wi t hout i nt er r upt i on. Any pi l e dr i v i ng t est not accompl i shed i n accor dance wi t h t hi s speci f i cat i on must be r edone at no addi t i onal cost t o t he Gover nment . Pul l each dr i v i ng t est pi l e wi t hi n one ( 1) day af t er t he compl et i on of t hat pi l e dr i v i ng t est , document damages, and st or e at const r uct i on s i t e. Remove pul l ed t est pi l es f r om t he si t e when di r ect ed.

3. 3. 2. 1 Secondar y Test Pi l es

The Cont r act or shal l per f or m a Wave Equat i on Anal ysi s t o det er mi ne i f t he hammer t o be used wi l l be adequat e t o dr i ve t he secondar y pi l es. The r equi r ed penet r at i on r esi st ance ( bl ow count ) i ndi cat ed by t he wave equat i on at t he end of dr i v i ng shal l be bet ween 30 and 110 bl ows per f oot f or t he dr i v i ng equi pment t o be accept abl e. Dr i ve secondar y t est pi l es wi t h t he same equi pment speci f i ed i n par agr aph " Pi l e Dr i v i ng Equi pment " and i n t he same manner speci f i ed i n par agr aph " Pi l e Dr i v i ng" f or j ob pi l es. Recor d t he dr i v i ng r ecor d dat a f or each t est pi l e dr i ven as speci f i ed i n par agr aph " Pi l e Dr i v i ng Recor ds. " Pr ovi de and oper at e a pi l e dr i v i ng anal yzer as speci f i ed by t he manuf act ur er dur i ng t he dr i v i ng of

SECTI ON 31 62 16. 16 Page 10 each secondar y t est pi l e. Do not per f or m any st at i c pi l e l oad t est s or any dynami c r est r i ke t est i ng on t he secondar y t est pi l es unl ess di r ect ed t o do so by t he Cont r act i ng Of f i cer .

3. 3. 3 Dynami c Test i ng of Pi l es

Empl oy a speci al t y engi neer i ng f i r m t o per f or m dynami c t est i ng of pi l es t o det er mi ne vel oci t y of st r ess wave pr opagat i on, accel er at i on, moni t or hammer and dr i ve syst em per f or mance, assess pi l e i nst al l at i on st r esses and i nt egr i t y , and t o eval uat e pi l e capaci t y. Fur ni sh per sonnel exper i enced i n per f or mi ng wave equat i on anal ysi s, dynami c t est i ng, and i nt er pr et at i on of r esul t s t o i nst al l and oper at e t he t est i ng equi pment and t o i nt er pr et i t s r esul t s. Fur ni sh equi pment t o obt ai n dynami c measur ement s, r ecor d, r educe and di spl ay i t s dat a and meet t he r equi r ement of ASTM D4945. The equi pment must have been cal i br at ed wi t hi n 12 mont hs t her eaf t er t hr oughout t he cont r act dur at i on. Suppl y al l power r equi r ement s f or oper at i ng t he equi pment . Pr i or t o commenci ng pi l e dr i v i ng, per f or m and submi t wave equat i on anal ysi s i n accor dance wi t h par agr aph " Submi t t al s. "

3. 3. 3. 1 Test Pi l es

Per f or m dynami c and st at i c t est i ng on 7 t est pi l es as i ndi cat ed. Per f or m t est i ng dur i ng t he f ul l l engt h of pi l e dr i v i ng. Rest r i ke pi l es whi ch ar e st at i cal l y l oad t est ed wi t hi n 48 hour s af t er compl et i on of st at i c l oad t est t o cor r el at e st at i c and dynami c t est r esul t s. Rest r i ke pi l es i nst al l ed as par t of pi l e dr i v i ng t est af t er a mi ni mum wai t i ng per i od of 21 days. War m up t he hammer pr i or t o r est r i k i ng. Rest r i ke t he pi l e f or 50 bl ows or unt i l t he pi l e penet r at es an addi t i onal 3 i nches, whi chever occur s f i r st . I n t he event t he pi l e movement i s l ess t han one- quar t er i nch dur i ng r est r i ke, t he r est r i ke may be t er mi nat ed af t er 20 bl ows.

3. 3. 3. 2 Job Pi l es

Per f or m dynami c pi l e t est i ng on 5 per cent j ob pi l es dur i ng t he f ul l l engt h of i ni t i al dr i v i ng and dur i ng r est r i ke dr i v i ng. Test ed pi l es must be as sel ect ed by t he Cont r act i ng Of f i cer over t he dur at i on of i nst al l at i on.

The Cont r act i ng Of f i cer wi l l di r ect t est i ng of addi t i onal pi l es i f t he hammer or dr i v i ng syst em i s modi f i ed or r epl aced.

3. 3. 3. 3 Repor t s

Pr epar e and submi t a summar y r epor t of dynami c t est r esul t s f or t est pi l es. Di scuss i n t he r epor t pi l e capaci t y obt ai ned f r om dynami c t est i ng as i t compar es t o st at i c t est r esul t s comput ed by t he Gover nment , and al so i ncl ude vel oci t y of st r ess wave pr opagat i on, accel er at i on, eval uat i on of hammer and dr i v i ng syst em per f or mance, dr i v i ng st r ess l evel s, and pi l e i nt egr i t y. Per f or m a CAPWAP, or s i mi l ar , anal ysi s of t he dynami c t est dat a on dat a obt ai ned f r om t he end of i ni t i al dr i v i ng and t he begi nni ng of r est r i ke f or 7 t est pi l es as di r ect ed. Use t he anal ysi s t o pr edi ct pi l e capaci t y, est abl i sh r esi st ance di st r i but i on, and pr edi ct quake and dampi ng f act or s. I ncl ude r ef i ned wave equat i on anal yses i ncor por at i ng t he r esul t s of dynami c t est i ng and anal ysi s. For j ob pi l es, pr epar e and submi t a f i el d summar y r epor t . The f i el d summar y r epor t must mi ni mal l y cont ai n ener gy t r ansf er r ed t o t he pi l e, cal cul at ed dr i v i ng st r esses, pi l e i nt egr i t y and est i mat ed pi l e capaci t y at t he t i me of t est i ng. I ncl ude i n t he r epor t f or t he t est pi l es and t he mont hl y r epor t f or j ob pi l es t he pi l e dr i v i ng r ecor d as an at t achment and al so addr ess t he i t ems l i s t ed i n par agr aph " 7. 1. 5 Dynami c Test i ng" of ASTM D4945.

SECTI ON 31 62 16. 16 Page 11

3. 3. 4 Pi l e Load Test s

Per f or m l oad t est s at l ocat i ons shown, or as di r ect ed. Pr ovi de t est i ng and measur i ng equi pment , per f or m l oadi ng, and pr ovi de obser vat i on f aci l i t i es f or per sonnel t o i nspect , r ecor d, and anal yze set t l ement / movement and def l ect i on of pi l es under t est l oads. Do not mobi l i ze l oad t est equi pment unt i l di r ect ed by t he Cont r act i ng Of f i cer .

Per f or m pi l e l oad t est s under t he super vi s i on of a r egi st er ed pr of essi onal engi neer pr ovi ded by t he Cont r act or and exper i enced i n conduct i ng pi l e l oad t est s. Loadi ng f r ames and equi pment f or pi l e l oad t est s must be r eady t o be pl aced i n oper at i on as soon as a l oad t est pi l e has been dr i ven. Pr ovi de l oadi ng equi pment of suf f i c i ent capaci t y t o appl y t he maxi mum l oad speci f i ed i n a saf e manner . St ar t l oadi ng of each t est pi l e when di r ect ed.

The Cont r act or i s r esponsi bl e f or t he appl i cat i on of l oads. Accur at el y det er mi ne and cont r ol t he magni t ude of appl i ed l oads usi ng a cal i br at ed l oad cel l and r eadout devi ce. The desi gn wor ki ng l oad, as conf i r med by t he r esul t s of l oad t est s, wi l l be det er mi ned by t he Cont r act i ng Of f i cer .

Load t est pi l es i ndi cat ed or di r ect ed t o be dr i ven i n per manent l ocat i ons may be i ncor por at ed i nt o t he wor k i f , af t er sat i sf act or y compl et i on of l oad t est , t hey ar e appr oved f or i ncl usi on i n t he wor k. Any pi l e l oad t est not accompl i shed i n accor dance wi t h t hi s speci f i cat i on wi l l be r ej ect ed. A new pi l e l oad t est must be conduct ed f or each r ej ect ed pi l e l oad t est . The Cont r act or must compi l e a r epor t f or each pi l e l oad t est i ncl udi ng, as a mi ni mum, al l appl i cabl e i nf or mat i on r equi r ed by t he speci f i ed t est .

3. 3. 4. 1 Compr essi ve Load Test

Per f or m 7 pi l e compr essi ve l oad t est s i n accor dance wi t h ASTM D1143/ D1143M , Pr ocedur e C. Appl y a compr essi ve l oad, up t o a maxi mum of 300 per cent of t he l oad val ue t abul at ed on t he pl ans, t o each compr essi on l oad t est pi l e as i ndi cat ed.

3. 3. 4. 2 Tensi l e Load Test

Per f or m 2 pi l e t ensi l e l oad t est s i n accor dance wi t h ASTM D3689, Pr ocedur e C. Appl y a t ensi l e l oad, up t o a maxi mum of 300 per cent of t he l oad val ue t abul at ed on t he pl ans, t o each t ensi l e l oad t est pi l e as i ndi cat ed. The t ensi on t est can onl y be per f or med af t er a mi ni mum wai t i ng per i od of 21 days af t er t he compr essi on l oad t est on t he t ensi on t est pi l e i s per f or med.

3. 3. 4. 3 Lat er al Load Test

Per f or m 1 pi l e l at er al l oad t est i n accor dance wi t h ASTM D3966/ D3966M.

The l ocat i on of t he f i r st pi l e l at er al l oad t est wi l l be as di r ect ed by t he Gover nment . Per f or m l at er al l oad t est s consi st i ng of j acki ng t wo pi l es apar t wi t h a hydr aul i c j ack, wi t h one pi l e ser vi ng as t he r eact i on pi l e f or t he ot her . Appl y a l at er al l oad of 10 t ons t o each pai r of l at er al l oad t est pi l es. Take r equi r ed movement r eadi ngs and r ecor d f or each pi l e. The magni t ude of t he maxi mum l at er al l oad t o be appl i ed coul d be modi f i ed as di r ect ed by t he Cont r act i ng Of f i cer .

Af t er concl usi on of t he f i r st pi l e l at er al l oad t est , t he Gover nment may el ect t o r equest a second pi l e l at er al l oad t est . Af t er t he concl usi on of t he second t est , t he Gover nment may el ect t o r equest a t hi r d pi l e l at er al l oad t est .

SECTI ON 31 62 16. 16 Page 12

3. 3. 5 Pi l e Load Test i ng Schedul e

The Cont r act or shal l f ol l ow t he f ol l owi ng pi l e l oad t est schedul e unl ess di r ect ed ot her wi se i n wr i t i ng by t he Cont r act i ng Of f i cer :

1. Dr i ve Pr i mar y and Secondar y t est pi l es and al l pi l es needed f or t he pi l e l oad t est r eact i on f r ame.

2. Wai t a mi ni mum of 21 days f r om t he end of dr i v i ng of t he l ast pi l e l i s t ed above f or each pi l e l oad t est l ocat i on.

3. Per f or m a st at i c compr essi ve pi l e l oad t est on t he Pr i mar y t est pi l e.

Per f or m a dynami c r est r i ke t est on t he same pi l e wi t hi n 48 hour s of t he compl et i on of t he st at i c l oad t est . I f a t ensi on t est i s r equi r ed, wai t 21 days t hen per f or m a st at i c t ensi on pi l e l oad t est on t he Pr i mar y t est pi l e.

4. Per f or m a st at i c pi l e l oad t est on t he Secondar y t est pi l e i f di r ect ed t o do so by t he Cont r act i ng Of f i cer . Per f or m a dynami c r est r i ke t est on t he same pi l e wi t hi n 48 hour s of t he compl et i on of t he st at i c l oad t est i f a st at i c l oad t est i s per f or med. I f a t ensi on t est i s r equi r ed, wai t 21 days t hen per f or m a st at i c t ensi on pi l e l oad t est on t he secondar y t est pi l e.

5. Remove al l t est and r eact i on pi l es. Gr out i n any r emai ni ng hol es or depr essi ons caused by r emoval of t he pi l es.

3. 3. 6 Saf e Desi gn Capaci t y

Load t est pi l es t o t wi ce t he ant i c i pat ed wor ki ng l oad unl ess f ai l ur e occur s f i r st . The saf e desi gn capaci t y of a l oad t est as det er mi ned f r om t he r esul t s of l oad t est s i s t he l esser of t he t wo val ues comput ed accor di ng t o t he f ol l owi ng:

a. One- hal f t he l oad t hat causes a net set t l ement af t er r ebound of not mor e t han 0. 01 i nch per t on of t ot al t est l oad.

b. One- hal f t he l oad t hat causes a gr oss set t l ement of not mor e t han 1 i nch pr ovi ded t he l oad set t l ement cur ve shows no si gn of f ai l ur e.

- - End of Sect i on - -

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2.1.7 CORROSION PROTECTION