Phase 1 - test area investigation report : mine research project GUE-70-14.10 PID No. 18459
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2001-01-01
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Abstract:The GUE-70-14.10 Mine Research Project is the investigation of a 2,200-foot-long section of ; Interstate 70 in Guernsey County, Ohio. Portions of the project area pavement were damaged as a ; result of mine subsidence. The damaged areas were remediated in 1995 and concerns are present ; regarding the post-remediation condition of the soils and bedrock beneath the project. The objective ; of the investigation is to detect the presence and ongoing formation of voids or anomalies beneath ; the pavement using various geophysical, geotechnical, and groundwater investigative methods. ; The project is divided into three phases. The primary purpose of the Phase I Test Area Investigation ; was to field test and evaluate, on a small scale, the various field and analytical methods proposed for ; the project during the full site investigation (Phase II). The small test area consisted of the eastbound ; lanes between Stations 483+00 and 485+00. ; The work completed for the test area included an evaluation of methods for a groundwater ; investigation, geophysical investigations, and geotechnical analysis. For the groundwater ; investigation wells were installed into the coal zone aquifer and several unconsolidated granular ; water bearings strata. From the wells, groundwater flow and quality data were obtained and ; evaluated. The geophysical investigation included the completion of surfaces seismic and ground ; penetrating radar investigations, down-hole seismic and ground penetrating radar investigations, and ; down-hole geophysical logging. The geotechnical investigation included the evaluation of ; stratigraphy, soil and bedrock strengths, and an evaluation of piping potential.
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Main Document Checksum:urn:sha-512:d261ce352caea7d5306d08f47fbb61f666481d804ae65f5a1e25562bb10d65810c46a6c7fb26fb4d637af614224355ed88e04cdc28d4a3df928a61a3cf584c2c