W912DQ20B1041 Solicitation Amendment(s) - 0004 20200609 - Attachment 02.pdf

Appendix C

MINIMUM GEOTECHNICAL INVESTIGATION

REQUIREMENTS

USACE Kansas City District

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Minimum Technical Requirements for Geotechnical Investigations

1.0 General

1.1 Purpose

The purpose of this document is to outline the minimum technical requirements for the Contractor’s geotechnical investigation associated with the project. The Contractor shall comply with the technical requirements outlined herein. The Contractor is solely responsible performance of the geotechnical investigation. This document focuses mainly on the site investigation and the Geotechnical Investigation Report referenced herein refers to field investigation, sampling and testing only.

1.2 Pre-investigation Coordination Meeting

Contractor shall attend Pre-investigation Coordination meeting, which will be hosted by the Government at a date and time to be provided by the Contracting Officer. The purpose of this meeting is to ensure mutual understanding of the requirements in this document with the proposed subsurface investigation plan. This meeting may be conducted via teleconference or in conjunction with required meetings.

1.3 Applicable technical requirements

It is the responsibility of the Contractor to find and adhere to the most up-to-date version standards referenced in this document. The following references are considered the minimum technical requirements:

1.3.1 Unified Facilities Criteria (UFC)s

The Contractor shall follow all, current applicable UFC documents. The following list is a selection of frequently referenced UFC documents; however, the list is not all inclusive and other UFC documents may be applicable.

UFC 3-130-04 Foundation for Structures: Arctic and Subarctic Construction

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UFC 3-130-06 Calculation Methods for Determination of Depth of Freeze and Thaw in Soil: Arctic and Subarctic

UFC 3-220-01 Geotechnical Engineering

UFC 3-220-04FA Backfill for Subsurface Structures

UFC 3-220-05 Dewatering and Groundwater Control

UFC 3-220-08FA Engineering Use of Geotextiles

UFC 4-860-01FA Railroad Design and Rehabilitation

UFC 4-860-03 Railroad Track Maintenance & Safety Standards

1.3.2 ASTM International (ASTM) Standards

The Contractor shall follow all current applicable ASTM standards. The following list is a selection of frequently referenced ASTM standards; however, the list is not all inclusive and other ASTM standards may be applicable.

ASTM D 1452 Standard Practice for Soil Investigation and Sampling by Auger Borings

ASTM D 1586 Standard Test Method for Penetration Test and Split-Barrel Sampling for Soils

ASTM D 1587 Standard Practice for Thin-Walled Tube Geotechnical Sampling of Soils for Geotechnical Purposes

ASTM D 2113 Standard Practice for Diamond Core Drilling and Sampling of Rock Core for Site Investigation

ASTM D 2487 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)

ASTM D 2488 Standard Practice for Description and Identification of Soils (Visual- Manual Procedure)

ASTM D 2573 Standard Test Method for Field Vane Shear Test in Cohesive Soil

ASTM D 5778 Standard Test Method for Electronic Friction Cone and Piezocone

Testing of Soils

ASTM D 6151 Standard Practice for Using Hollow-Stem Augers for Geotechnical Exploration and Soil Sampling

ASTM D 6429 Standard Guide for Selecting Surface Geophysical Methods

ASTM D 6635 Standard Test Method for Performing the Flat Blade Dilatometer

ASTM D 6951 Standard Test Method for Use of the Dynamic Cone Penetrometer in Shallow Pavement Applications

1.3.3 USACE Publications

The Contractor shall follow all applicable USACE regulations. The following list is a selection of frequently referenced documents; however, the list is not all inclusive, and other USACE publications may be applicable.

EM 385-1-1

EM 1110-1-1804

EM 1110-2-1902

EM 1110-1-1904

EM 1110-1-1905

EM 1110-3-150

ER 1110-3-152

ER 1110-1-1807

Safety and Health Requirements Manual

Geotechnical Investigations

Slope Stability

Engineering and Design: Settlement Analysis

Engineering and Design: Bearing Capacity of

Soils Storage Depots Mobilization Construction

Railroads Mobilization Construction

Drilling In Earth Embankment Dams and Levees

1.3.4 Other Federal, State, or Local Regulations

All applicable Federal, State, or Local Regulations.

2.0 Background Information

2.1 Regional Geology

The MRLS L-246 Levee Unit is located on the left bank of the Missouri River. The floodplain near the Levee consists of clays and silts up to 30 feet in thickness overlying sands and gravel before encountering bedrock. Bedrock in the area ranges from 70 to 90 feet below ground surface (bgs) and approaches the surface closer to the bluff.

3.0 Minimum Experience Requirements

3.1 The Contractor shall employ a licensed Professional Engineer or Registered Geologist in the State of Missouri having at least 5 years of experience in the Geotechnical engineering field for the purpose of leading the geotechnical investigation and preparing the referenced geotechnical report.

3.2 For subsurface investigations, the Contractor shall employ a licensed driller, in the State of Missouri, having at least 5 years of experience to complete the subsurface

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investigation.

3.3 All field logging, required for the subsurface investigation, shall be completed by a licensed professional geotechnical engineer or registered geologist in the State of Kansas having at least 3 years of experience.

3.4 The Contractor shall submit resumes of the geotechnical engineers, geologists, supervisors, field personnel, drillers and the project manager(s), with their personal qualifications, years of experience, and drilling project references.

4.0 Subsurface Investigation Requirements

4.1 General

All field work will be subject to inspection by Government representatives without advance notice.

4.2 Subsurface Investigation Plan

4.2.1 General

Contractor shall provide a subsurface investigation plan, stamped by a licensed Engineer to the Contracting Officer for Government approval not less than 30 days prior to the anticipated start of the Contractor’s subsurface investigation. The plan will be discussed in the Preparatory Meeting. The Contractor shall not initiate subsurface investigation until the work plan has been approved by the Government. Following Government approval of Contractor’s Subsurface Investigation Plan, all subsequent revisions to the plan shall require Government approval. The plan shall include number, purpose, location of borings, CPT, test pits, geothermal wells, and other excavations, type and purpose of proposed sampling, backfill methods for all borings, CPT, geothermal wells, test pits, and other excavations, and a preliminary investigation schedule.

4.2.2 Plan Location Requirements

The plan shall indicate all field locations (e.g. borings, CPT, geothermal wells, test pits/trenches, etc.) according to the surveying system used for all other drawings prepared for the project. Field sample location measurements shall be accurate to within 0.1 foot both vertically and horizontally.

4.3 Quality Control Measures for Field Work

4.3.1 Subcontractor Quality Control Responsibility

The Contractor is responsible for quality control of work for all subcontractor’s work and products.

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4.4 Explorations

Subsurface investigation methods shall be conducted in accordance with all applicable ASTMs, unless otherwise noted. The following is a list of commonly used practices for geotechnical investigations; however, the list is not all inclusive and additional field methods may be used with approval from the Contracting Officer:

4.4.1 Auger Drilling ASTM D1452 and D6151

4.4.2 SPT ASTM D1586

4.4.3 Undisturbed Sampling ASTM D1587

4.4.3 Rock Coring ASTM D2113

4.4.4 Cone Penetrometer Test ASTM D5778

4.4.5 Geophysics ASTM D6429

4.4.6 In-Situ Testing ASTM D2573, ASTM D6635, ASTM D6951

4.4.7 Test Pits EM 1110-1-1804, Chapter 5-17

4.4.8 Backfill Requirements EM 1110-1-1804, Chapter F-14

4.5 Field Logs

Original, completed field log sheets prepared in the field for each boring shall be scanned and stored electronically using a .jpeg format. Scanned field logs shall contain test location coordinates and shall be submitted in electronic format along with the all other deliverables identified in Section 7.0 Submittals. Provide original field logs of borings for inspection by the Government upon request of the Contracting Officer.

5.0 Laboratory Testing Requirements

5.1 General

Contractor shall perform laboratory tests related to the subsurface investigation in accordance with the appropriate ASTM, as applicable unless otherwise approved by Government. Contractor shall perform sufficient laboratory testing to support all geotechnical designs.

5.2 Qualified Laboratories

The Contractor’s testing laboratory for aggregate, concrete, bituminous materials, soil, and rock shall be a Corps of Engineers Materials Testing Center (MTC) validated lab for all tests required in the Contractor’s approved Laboratory Testing Plan. A list of current validated labs is available at:

http://www.erdc.usace.army.mil/Media/Fact-Sheets/Fact-Sheet-Article- View/Article/476661/materials-testing-center/

5.3 Laboratory Testing Plan

A laboratory testing plan shall be provided with the subsurface investigation plan. If the approved laboratory testing plan is revised, the Contractor will provide technical justification to the Government in writing.

http://www.erdc.usace.army.mil/Media/Fact-Sheets/Fact-Sheet-Article-

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5.4 Summary of Results

A summary sheet(s) tabularizing all laboratory test results in a spreadsheet/table format shall be provided to the Contracting Officer upon request. A final spreadsheet in .xlsx/xls format of all laboratory data shall be included in the Contractor’s geotechnical report. The Quality Control standards discussed in Section 5.6 are applicable for the summary sheet referenced in this section. The summary shall contain, at a minimum, the following information for each sample entry:

5.5.1 Boring ID

5.5.2 Sample ID

5.5.3 Sample depth

5.5.4 Lab test name, including testing standard

5.5.5 Anomalies during testing, if applicable

5.5.6 Lab test results

5.6 Quality Control

The geotechnical report shall include the results of each laboratory test performed on samples collected during the subsurface exploration program. The following Quality Control items are also required submittals:

5.6.1 Laboratory sheets shall indicate the standard and method used and shall be stamped by a licensed Professional Engineer in the State of Kansas.

5.6.2 Laboratory sheets shall include appropriate plots of all laboratory test data with each page signed by the individual performing that particular testing and countersigned by the individual performing the Quality Control (QC) check on the test.

5.6.3 Computation sheets showing the data reductions of all laboratory tests performed. Computation sheets shall be individually signed by the person performing the computation/data reduction and countersigned by the person performing the data QC check.

6.0 Geotechnical Investigation Report

6.1 General

Contractor shall prepare a stand-alone, written Geotechnical Investigation Report for the project. The Contractor shall prepare and submit a draft that will be reviewed by the government. The Contractor shall revise the draft Geotechnical Report as necessary, incorporating comments by the Government and submit a Final Geotechnical Report.

The geotechnical report shall at a minimum, address the topics discussed in paragraph

6.2 Minimum Geotechnical Report Contents.

6.2 Minimum Geotechnical Report Contents

6.2.1 General

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At a minimum the Geotechnical Investigation Report shall include: Summary of all field exploration methods, identification of abnormal conditions, summary of in-situ test methods and results, CPT plots, geophysical data, data reduction, and all raw electronic data files.

6.2.2 Field Boring Logs

Field boring logs shall use Drilling Log, ENG FORM 1836, and 1836-A. The Contractor shall contact the Kansas City District Geology Section at 816-389-3985 for a copy of ENG Form 1836/A. The borings will be logged in accordance with EM 1110-1-1804.

The contractor shall submit original boring logs within 5 days after completion of each boring or test pit. The boring logs will contain at a minimum, the information listed under Section 6.2.3 Final Boring Logs.

6.2.3 Final Boring Logs

Final boring logs shall utilize the Corps of Engineers, Kansas City District template for the gINT Geotechnical Software package version 8.3 or later. The template is stored at the Kansas City District Geology Section (CENWK-EDG-G) and will be provided to the Contractor for use upon request. The Contractor shall contact the Geology Section (816-389-3985) to request a copy of the template. The following information shall, at a minimum, be shown on all boring and gINT logs:

Boring, Test Pit, or push number or designation

Type of drilling, sampling, and testing operation by depth with make, size, and manufacturer’s model designation of drill rig, sampler, and excavating equipment.

Driller’s and Inspector’s name and date.

Indication of penetration resistance, such as drive hammer blows, pressure applied to push thin walled samplers, cone resistance, etc.

Elevation of the ground surface at the top of boring measured to the nearest

0.1 foot relative to a permanent U.S.G.S. benchmark or local benchmark and datum.

Type, vertical, and lateral extent, and characterization of any existing encountered fill, debris or subgrade structures.

All major changes in material including material type and/or composition, color, relative moisture, and density or consistency, and texture.

Classification of the soil materials encountered using the Unified Soils Classification System (USCS) as defined in ASTM D2487 and D2488 and standard petrographic descriptions of all bedrock or bedrock-like materials encountered in each boring.

The depth interval for each sample obtained for each boring along with the sample

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designation (i.e. unique identification number) used when submitting the sample to the laboratory for testing.

Results of field tests performed on collected sample (e.g. torvane, etc.).

Water level measurements of the depth at which water was first encountered during drilling, at the completion of drilling, and a minimum of 24 hours following completion of drilling.

If applicable, type and weight of drill fluid, depth of drill water loss, and amount of water loss.

If applicable, the depth of hole collapse measured at the time of the 24 hour water level measurement.

Observation of any abnormal surface features including, but not limited to, subsidence, seepage, and unstable slopes.

Refusal criteria, if encountered before bottom of hole.

Observations of any evidence of environmental contamination during soil sampling. If environmental contamination is suspected, stop drill work immediately and immediately notify the COR.

Method used for backfilling each boring upon completion of all measurements, sampling, and amount of backfill. The aforementioned information shall be recorded at the bottom of each boring log.

Update Final and gINT logs with lab test results.

6.2.4 In-situ Testing

The Contractor shall provide a narrative of all In-situ tests conducted and abnormal features encountered in the field. The Contractor shall provide a summary of all In-situ test data in tabular form.

6.3 Laboratory Test Results

The Contractor’s Geotechnical Report shall include the results of each laboratory test performed on samples collected during the subsurface exploration program, as discussed in Section 5.0. Appropriate QC documentation shall be included with the laboratory results as required in Section 5.6.

6.4.2 Soil Chemical Analysis

Contractor’s Geotechnical Report shall address the corrosivity potential of encountered soil and the impact the encountered soil poses on selected foundation and other proposed underground features. At a minimum, the Contractor’s Geotechnical Report shall present soil resistivity, sulfate, pH, and chloride ion data and discuss the impact of

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the encountered values. Contractor’s Geotechnical Report shall also provide a recommended cement type based upon published American Concrete Institute (ACI) publications, based upon chemical analyses of site soils.

6.4.3 Geologic Hazards

Geotechnical report shall address and discuss geologic hazards that may impact site development as required in UFC documents. Geologic hazards include, but are not limited to: swell potential, presence of Karst, and liquefaction potential. Related investigation hazards include high grout takes, drill fluid loss, presences of old utilities and foundations, etc.

6.5 Report Submittal Requirements

6.5.1 Submittal requirements are provided in Section 7.0 SUBMITTALS.

7.0 Submittals

7.1 Schedule

The submittals referenced in Table 1 shall be provided by the Contractor to the Government. The subsurface investigation and laboratory work shall not begin until the respective plan has been approved in writing by the Government.

Table 1. Required Contractor submittals.

Document Reviewer Government

Review

Contractor Response

Time

Government Backcheck

Contractor’s Draft Geotechnical Report

- Review

DO1(EDG)

14 calendar days

5 calendar days

5 calendar days

Contractor’s Final Geotechnical Report

- Review

(EDG)

14 calendar days

5 calendar days

5 calendar days

Contractor’s Electronic Raw Data

Files

(EDG)

14 calendar days

5 calendar days

5 calendar days

1. District Office (Reviewing office symbol)

7.2 Deliverables

Contractor shall provide the Contracting Officer with two (2) bound copies of the Contractor’s Geotechnical Report accompanied by all gINT-entered final boring logs.

Provide electronic files of the Geotechnical Report (.PDF format) including boring logs and laboratory data in xlsx/xls format on two (2) CDs for entry into the Kansas City District GIS data library. Provide copies of required professional certifications or licenses for project personnel, if requested by the Contracting Officer.

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