| Title | Field Evaluation of Advanced Methods of Subsurface Exploration for Transit Tunneling |
|---|---|
| Record ID | 50450 |
| Personal Name Creator |
Thompson, D. E.; Humphrey, J. T.; Young, L. W., Jr.; Wall, C. F. |
| Source | 405p. in various pagings |
| Corporate Creator | Bechtel Group |
| Corporate Contributor |
John A. Volpe National Transportation Systems Center (U.S.); United States. Urban Mass Transportation Administration |
| Publisher | United States. Urban Mass Transportation Administration |
| Publication Date | 19800601 |
| Language | English |
| Abstract | This report presents the results of a field evaluation of advanced methods of subsurface exploration on an ongoing urban rapid transit tunneling project. The objective of this study is to evaluate, through a field demonstration project, the feasibility, applicability, reliability, and cost effectiveness of selected advanced methods of subsurface exploration and instrumentation to produce data usable for rapid transit tunnel design and construction within the time, cost, and schedule constraints common to the industry. Numerous methods of subsurface exploration, including hole advancement techniques, sampling procedures, and geophysical logging tools, were used to predict stratigraphy within a test section on an urban rapid transit project under construction. A test section on the Massachusetts Bay Transportation Authority Red Line Extension-Northwest, Cambridge, Massachusetts, was selected to evaluate methods of subsurface exploration used to investigate stratigraphy, ground water levels, bedrock structure, and other geotechnical parameters. The site represents a typical urban setting with the test section located under a major, four-lane divided street, with structures adjacent on both sides. |
| Rosap ID | dot:11837 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/11837 |
| TRT Terms | Analysis; Construction; Costs; Excavation and tunneling; Field tests; Geological events; Geological surveying; Geophysical prospecting; Groundwater; Instrumentation; Rapid transit; Rock mechanics; Soil mechanics; Soil stabilization; Structural design; Subways; Tunnels |
| Classification | AGR - INFRASTRUCTURE - Railroads; AGR - INFRASTRUCTURE - INFRASTRUCTURE; NTL - PUBLIC TRANSPORTATION - Rail Transit; NTL - PUBLIC TRANSPORTATION - PUBLIC TRANSPORTATION |
| Geographical Coverage |
Massachusetts |
| Contract Number | DOT-TSC-1570 |
| Report Number | DOT-TSC-UMTA-80-1; UMTA-MA-06-0100-80-1 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/50000/50400/50450/DOT-TSC-UMTA-80-03.pdf |
| Format | |
| Database | NTL Digital Repository |