Shaking table tests on the mitigation of liquefiable ground effects by well-point dewatering
CHEN Yulong1, ZHANG Ke2
1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China;
2. Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China
Abstract：The liquefaction resistance of saturated, sandy foundations can be improved by reducing the saturation. The well-point dewatering method was used to lower the saturation of the subsoil using vertical, horizontal, inclined and combined drainage pipes arrangements. The horizontal arrangement gave the best liquefaction resistance with the lowest induced excess pore pressure during the shaking. In engineering practice, the dewatering method can be used at regular intervals to reduce the liquefaction possibility.
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