Universities Research Association, Inc/Fermilab, PO Box 500, Batavia IL 60510-0500

Y -- MAIN INJECTOR 8GEV ENCLOSURE Sol MI-FESS-5496-ARF. Due 031795. Contact A. Richard Farritor, 708/840-4611/Contracting Officer. 8GeV Beam Enclosure-Projects 6-6-9 and 6-6-10. Project consists of the construction of an underground enclosure approximately 1870 feet in total length consisting primarily of 8 foot high by 10 foot wide by a maximum 7.5 foot long precast concrete inverted ``U''-shaped elements (201 units furnished by Fermilab) supported on a cast-in-place rectangular enclosures of various cross-sections with maximum inside dimensions of 9 feet high by 24 feet wide. Concrete work also includes below grade elements of the future MI-8 Service Building including an elevator shaft and pit, a vertical equipment access shaft, a stair to grade, four caissons and an 8 foot high by 10 foot wide by 175 long semicircular access enclosure connecting the MI-8 area and the 8GeV Enclosure. Cast-in-place concrete volume will approach 3700 C.Y. Excavation depth averages approximately 32 feet and total excavation and backfill quantities will approach 140,000 C.Y. Work includes three additional exit stairs, a shielded hatchway, earth retention systems, temporary support of underground utilities, demolition and reconstruction of 88 feet of existing concrete enclosure, 440 tons of steel shielding furnished by Fermilab, underdrain system, waterproofing, electrical work including convenience power, lighting, UPS, and grounding systems, ventilation system, painting of enclosure walls and ceilings, hollow metal doors, frames and hardware and sitework including erosion control, rough roads, hardstands, culverts, power and communication duct banks and manholes, utility system extensions, berms, final grading and seeding. Project will be a phase-funded fixed-price contract with bids evaluated on the basis of the total cost for the three phases, A, B, and C. Initial award will be made for Phases A and B with immediate Notice to Proceed for Phase A. Phase B work will be coincident with a Laboratory shut-down later this summer. Phase C will be awarded in October, 1995 subject to release of DOE funding. (027)

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