SOLICITATION NOTICE
Y -- Sources Sought
- Notice Date
- 9/29/2006
- Notice Type
- Solicitation Notice
- Contracting Office
- BUREAU OF RECLAMATION PO BOX 25007, 84-27810 DENVER CO 80225
- ZIP Code
- 80225
- Solicitation Number
- 07SP811284
- Response Due
- 10/31/2006
- Archive Date
- 9/29/2007
- Small Business Set-Aside
- N/A
- Description
- The Bureau of Reclamation has a requirement for the following: Introduction: A jet grouting test section is planned for Mormon Island Auxiliary Dam (MIAD) located near Sacramento, California. MIAD is an earthfill dam located approximately two miles east of Folsom Dam, which is part of the Central Valley Project. MIAD is one component of Folsom Project which impounds the American River to form Folsom Lake. MIAD was constructed by the United States Army Corp of Engineers (USACE) and was completed in 1953. Upon completion of all project structures in 1956, operation and maintenance of the dams and dikes was assigned to the Bureau of Reclamation. In the 1990s, MIAD foundation was modified upstream and downstream over a 900-foot wide section to limit seismic deformations. The foundation was strengthened by the use of dynamic compaction along the upstream toe and the installation of bottom-feed stone columns downstream. Additional seismic strengthening of the MIAD foundation soils in the downstream toe area is planned. Jet grouting has been selected as the technically preferred alternative to treat the potentially liquefiable weak foundation soils in the downstream toe foundation. These materials consist of dredger tailings and colluvium which consists of a wide range of types of materials with the predominant materials being sandy gravels. The area of jet grouting will be in the same area which includes the previously installed stone columns. The purpose of the jet grouting test section at MIAD is to: 1. Evaluate the feasibility of jet grouting for the foundation soils at MIAD 2. Evaluate jet grouting technologies such as triple and double fluid systems 3. Develop grouting parameters that can be used in final design 4. Evaluate construction issues for final design such as waste handling, cement usage, and strength and quality of installed soilcrete Test Section: The jet grouting test section at MIAD will consist of the installation of between 16-24 jet grout columns using triple fluid jet grouting technology and optionally, between 4-8 jet grout columns using double fluid jet grouting technology. The jet grout columns will be installed a maximum of 80 feet in depth from an existing flat area at the downstream toe of MIAD. The grout columns will be approximately 40 feet high and keyed into the underlying bedrock. In preparation for the jet grouting work, the Contractor will be required to drill a continuous soil boring, near the proposed jet grout column array, in order to obtain samples to establish the geotechnical soil and bedrock properties of the site. This borehole will be instrumented with vibrating wire piezometers and thermistors in order to monitor ground water elevations and temperature changes during jet grouting. The Contractor will also be required to sample the grout mix and the spoil stream during grouting operations and create wet, molded samples for unconfined compressive strength testing. In addition, the Contractor will be required to perform core drilling of the installed jet grout columns at specific locations, to retrieve in-place jet grouted soil cores for unconfined compressive strength testing, geometry determination, and quality control analysis. The Contractor will also be required to monitor a number of jet grouting injection parameters for use in the evaluation of the quality and performance of the installed soilcrete columns. Production Jet Grouting: It is anticipated that a contract to perform production jet grouting at MIAD will be issued and awarded in the fall of 2007 if the test section proves to be effective. During production jet grouting, it is estimated that between 1,000 and 1,500 jet grout columns will be installed. The RFP is expected to be issued on or about November 1, 2006, with a closing date approximately 30 days thereafter. The North American Industry Classification System (NAICS) code for this requirement is 237990 with a small business size standard of 750 employees. Interested sources may access the Request for Proposal (RFP) No. 07SP811284 from the Fed Biz Ops website www.fbo.gov when issued. The award decision will be based upon a combination of price and technical factors which will be described in the RFP.
- Web Link
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Please click here to view more details.
(http://ideasec.nbc.gov/j2ee/announcementdetail.jsp?serverId=BR142581&objId=113095)
- Record
- SN01158305-W 20061001/060929221125 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
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