High density resistivity method for detecting grouting reinforcement quality of pipe jacking
Yu-Fei GONG1, Tian-Chun YANG1,2, Shao-Yu DONG1, Kai JIANG1
1. Resource Environment and Safety Engineering College of Hunan University of Science and Technology, Xiangtan 411201, China 2. Key Laboratory of Geotechnical Eengineering Stability Control and Health Monitoring of Hunan University of Science and Technology, Xiangtan 411201, China
In this paper, the high density resistivity method was applied to measure the compactness of grouting in a water reconstruction project in Xiangtan City, and its effectiveness was studied. The abnormal strata were determined according to data processing and image interpretation, and then in combination with the exploration results, the existence of groundwater-rich areas was detected and verified by excavation. The results show that the high density resistivity method has a very good detection effect in the measurement of pipe jacking compactness, and the low-resistivity anomaly area corresponds to the water-bearing undense area.
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doi: 10.1016/S0926-9851(99)00013-0
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