A21_W91QVN19R0308_Amed__1.docx

W91QVN19R0308

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 1449 - CONTINUATION SHEET

The following have been modified:

SPECIFICATIONS

Purchase for Top Drive Rotary Well Drilling Rig (Water Well Drill Rig)

1. Item Description

2. Salient physical, functional, or performance characteristics to evaluate for the equal item:

Summary

■ GENERAL:

· Truck-mounted rigs will be used for drilling water wells and foundation holes to a depth of 1200 ~ 2000 ft.

· Drill rig shall be provided with a power conversion kit and water pump accessories for optional rock coring to 1200ft (NX through 4-inch diameter cores).

· Diesel-powered, hydraulic top drive drill rig for rotary TDH, mud, and dual tube reverse circulation drilling applications.

· Equipped to carry 25-ft drill pipe in a minimum 28-ft stroke mast.

· Drill shall be assembled on a rigid subframe for mounting on truck.

■ SUBFRAME:

· Steel (ASTM A36) channel construction.

· Leveling system consisting of four hydraulic jacks (minimum 48-inch stroke), complete with minimum 18-inch diameter ball and pinned socket mounted cast cleated pads.

■ POWER GROUP:

· Drill engine: Korean Manufacturer Product, rated at minimum 600 hp at 1800 ~ 2100 rpm and 110 degree F cooler, complete with insulated exhaust muffler and minimum 220 gal fuel tank.

· Drill cooling system for engine and hydraulic fluids rated for 130 degree F ambient conditions, complete with canvas cover for cooler.

· Air line blow down/relief system.

■ FEED SYSTEM AND ROTARY HEAD:

· Drill mast with the following minimum rations: 28-ft ~ 30-ft stroke with cylinder and chain feed system; rated 70,000-lb ~80,000-lb holdback; 30,000-lb ~ 40,000-lb down pressure, with heavy duty 2-1/4 inch feed chain type or cylinder/cable type.

· Top drive hydraulic high torque rotary head with the following minimum rations: 0-61 rpm at 64,800 inch-lbs torque, and 0-80 rpm at 97,000 inch –lbs torque, complete with nylon guide shoes and two lifting shackles.

· Torque, find feed with override controls.

· Drill table: heavy duty with minimum 18-inch ~ 24-inch hydraulically-adjustable opening and hinge-pinned front access.

■ PIPE HANDLING:

· Drill pipe loader:

1) carousel type; outside mast, hydraulically operated; indexing for minimum six 4-1/2 inch OD by 25-ft long drill pipes; swing away drill pipe retainer hoop; OR

2) 1-ton drill rod handler type for minimum 4-1/2 inch OD by 25-ft long drill pipes

· Accessory winch and jib boom system with the following minimum attributes:8,000-lb hydraulic winch with 100ft of ½ -inch wire rope; 172x hydraulically extended and indexed jib boom.

· Breakout tong, hydraulically actuated 60-inch jaw type.

· Auxiliary break out system, hydraulic cylinder/cable pull.

■ ADDITIONAL REQUIRD FEATURES:

· DTH hammer holders for 6-inch and 8-inch hammers.

· Stabilizer rack, mounted on outside loader assembly.

· Water injection system with following minimum attributes: hydraulically-operated 25 gpm, 800 psi pump, complete with foam pump.

· Machine washing kit including hose, nozzle, and connector to water pump.

· Fuel gage mounted at operator’s station.

· Air regulator for 100 psi bit grinder.

· Maintenance kit, including elements and other service type consumables needed after first 50hours operation.

· Emergency road kit, including triangle, flags, flares, fuses, and fire extinguishers.

· Pier port lift kit.

· Spare parts book, operator’s manual, service manual.

· Painted factory standard white, with complete body undercoating.

· Basic drilling accessory kit for use with 4-1/2 inch OD, 3-1/2 inch API drill pipe and 6-inch DTH hammer, including the following;10”/4-1/2” table bushing; 1 each jay wrench for pipe and DTH hammer; 3 split bushing; and 1 bit breakout plate.

· Drill pipe chip deflector wiper group.

· Control panel cover, lockable steel construction.

· Remote drain group for crankcase, compressor, and hydraulic oils.

· Tow hooks, front and rear, and mud flaps.

· Lockable tool storage, minimum 21 cubic feet capacity.

· Night lighting system including three 70 watt halogen shock-mounted flood lights.

· Operator platform.

· Angle drilling group: 0-30 degree, in 5 degree increments.

· Reverse circulation group.

· Auto rod handler.

· Casing advance system.

■ TRUCK:

· Korean Manufacture Product 6 x 6 or Equal, with dimensions, configuration, and power rating compatible to support full drill rig operations. Minimum 10-speed standard transmission.

· Painted factory standard white, with complete body undercoating.

· Air conditioning.

· AM-FM radio

· Front tow hooks.

1. Air horns

· Total height of the drill rig shall be less than 4.1 meter.

· Total weight of the drill rig shall be less than 40 tons (metric).

■ DTH HAMMER LUBRICAION:

· Air line lubricator for DTH hammers including minimum 30 gallon reservoir.

■ AIR LINE GROUP FOR BOOSTER COMPRESSOR:

· Minimum 1500 psi air line group for use with booster compressor.

· Water injection system with the following minimum requirements: hydraulically operated; no tank; 25 gpm, 800 psi Cat pump, complete with Cat foam.

· Remote helper’s station for independent control of winch, jib swing/ extension, and outside loader indexing.

· Compressor disengaging system, with manually-operated clutch.

· Pre-heater, diesel-fired for deck engine.

· Heating system for lubrication tank.

■ POWER GROUP:

· Minimum rated 1020 ~ 1150 cfm, 350 ~ 500 psi compressor, Korean Manufacture Product with minimum rating of 600 hp at 1800 ~ 2100 rpm and 110 degree F cooler.

■ EQUIPMENT WARRANTY:

· Contractor shall provide standard industry warranty on all drill rig components and truck assembly, taking into consideration the overseas location of the equipment(Pyeongtaek, Korea)

■ ON-SITE TRAINING:

· The contractor shall conduct a 5-day training session on the operation, care, and maintenance of the procured drill equipment. The training shall be held at the Far East District (FED) Compound in Camp Humphreys, Pyeongtaek, Korea.

· The Government will notify the contractor when the drill rig has arrived in Korea. Following this notification, the contractor shall have 4 weeks in which to complete the 5- day training session. Training shall be scheduled between Monday and Friday, for a duration for 8 hours each day (0800 to 1700 hrs). The contractor shall coordinate the training schedule with FED. (POC: Ms. Woo. Sarah H)

Woo. Sarah H, P.E., PMP Chief, Geotechnical and Environmental Engineering Branch Far East District, USACE Tel (DSN); 315-755-6191 Tel: 0503-355-6191 (Local Callers) Tel: 011-82-503-355-6191 (Stateside Callers)

BOLD LETTERS: SALIENT CHARACTERISTICS

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