Study on seepage and wettability distribution of coal seam water injection based on electrical conductivity

Zheng, Lei; Li, Dewen; Yu, Yanbin; Gao, Chengwei; Yong, Guo; Xin, Qilin

doi:10.1007/s12517-022-09982-8

Cited by 2 publications

(1 citation statement)

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“…Given the urgency required in construction practice, the leakage detection technology for diaphragm wall joints is being developed constantly. At present, the detection methods include leakage monitoring based on capacitive sensors [ 6 ], electromagnetic leakage detection technology [ 7 ], tracer method leak detection technology [ 8 ], and distributed fiber optic percolation detection technology [ 9 ]. Du [ 10 ] monitored the infiltration process of liquid in rock and soil by using the direct current resistivity method.…”

Section: Introductionmentioning

confidence: 99%

Conceptual Model, Experiment and Numerical Simulation of Diaphragm Wall Leakage Detection Using Distributed Optical Fiber

et al. 2023

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Leakage in the diaphragm wall is difficult to detect in deep foundation pits. In this study, the conceptual model of active and passive thermal leak detection methods was proposed according to the occurrence of temperature field anomalies caused by seepage. Experiments were performed using a heating system and an optical fiber temperature measurement system to verify the thermal leakage detection systems. Numerical simulations were performed to understand the mechanism of the detecting method. Results indicated that the optical cable could detect the low-temperature anomaly in the active temperature field leak detection. The arrangement method of the leakage detection system was also presented in actual engineering.

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