SOLICITATION NOTICE
B -- To evaluate the potential performance of filters in embankment dams and for the development of a simplified laboratory filter test.
- Notice Date
- 9/22/2005
- Notice Type
- Solicitation Notice
- Contracting Office
- BUREAU OF RECLAMATION PO BOX 25007, D-7810 DENVER CO 80225
- ZIP Code
- 80225
- Solicitation Number
- 05SQ810038
- Response Due
- 9/26/2005
- Archive Date
- 9/22/2006
- Small Business Set-Aside
- N/A
- Description
- This is a Notice of Intent to award on a Sole Source basis to the Center for Geotechnical Practice and Research at Virginia Polytechnic Institute & State University (CGPR). This contractor owns the only filter testing apparatus that can: 1. Test filter materials with particle sizes of 1.5 inches or larger. 2. Propagate artificial cracks through both the filter and base material with apertures of 1 inch, and 3. Create the correct stress conditions to model soils at depth using a membrane to simulate overburden pressures The Bureau of Reclamation (Reclamation) has a requirement for the evaluation of the performance of filters in embankment dams and for the development of a simplified laboratory filter test. This will involve a base year and one option year contract. a. Perform a desk study and report to summarize gradations and mineralogy of existing Reclamation dams to establish the range of conditions to be simulated in the experimental testing program. b. Perform a literature review, survey, and report investigating the depth of cracking that has occurred in dams worldwide. The purpose of this task is to determine the depths of cracks and appropriate range of overburden pressures that should be simulated in the experimental testing program. c. Perform a literature search and review of (1) chemical and biological causes of cementation in granular soils, and (2) experiences with development of cementation in granular soil filters. The review would focus on the conditions likely to lead to development of cementation in filters, methods of detecting cementation in filters, and methods of remediation. d. Perform an experimental testing program, using the laboratory testing devices for testing cracked filters, to investigate the effects of the amount of fines and the plasticity of fines on the performance of cracked filters. The purpose of this task is to establish quantitative results that can be used as the basis for determining which materials are acceptable or unacceptable for use in filters. e. Perform laboratory experimental studies of the self-healing ability of broadly graded filters, using the devices developed at Virginia Tech. The purpose of this task is to determine under what conditions these broadly graded materials would be capable of self-healing and establishing stable behavior without effective filters downstream. f. Develop a simplified index test method to assess potential filter performance. The purpose of this task is to make it possible to determine whether candidate materials are acceptable or unacceptable using simple tests that can be performed in laboratories that do not have the specialized devices developed at Virginia Tech. This is not a formal solicitation. However, concerns that respond shall provide detailed data concerning their capabilities. This information will be evaluated and used to determine if competitive opportunities exist. This notice may represent the only official notice of such a solicitation.
- Web Link
-
Please click here to view more details.
(http://ideasec.nbc.gov/j2ee/announcementdetail.jsp?serverId=BR142581&objId=100485)
- Place of Performance
- Address: Bureau of Reclamation PO Box 25007, D-8340 Denver CO 80225-0007 US
- Zip Code: 25007
- Country: US
- Zip Code: 25007
- Record
- SN00901754-W 20050924/050922212356 (fbodaily.com)
- Source
-
FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)
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