LIU Chunxiao,TAO Lianjin,BIAN Jin,et al.Experimental Design of Shaking Table Test on Seismic Response of Soil and Underground Structures in Liquefiable Soil[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(06):1341-1350.
LIU Chunxiao,TAO Lianjin,BIAN Jin,et al.Experimental Design of Shaking Table Test on Seismic Response of Soil and Underground Structures in Liquefiable Soil[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(06):1341-1350. DOI: 10.13409/j.cnki.jdpme.202004085.
Experimental Design of Shaking Table Test on Seismic Response of Soil and Underground Structures in Liquefiable Soil
The relative position between the liquefaction area and the structure, and the large displacement induced by the liquefaction site have a great influence on the dynamic response of the underground structure. Based on this, the research group carried out a series of shaking table tests on the single-layer double-cross-section structure commonly used in subway tunnel construction. This paper systematically expounds the relevant contents of the scheme design in this large-scale shaking table test, including similarity relation design, foundation soil preparation, structural model preparation, waterproof treatment, test technology and sensor arrangement, test condition setting and so on. The seismic response of foundation soil in free field condition of the liquefaction site is analyzed. The main contents and achievements are as follows: the series of test design schemes can produce a better macroscopic liquefaction test phenomenon; the boundary effect of the model box is small; under the same peak value of ground motion, Kobe wave and Beijing artificial wave lead to the largest shear deformation of soil, while Mingshan wave produces the smallest shear deformation. The idea of test design and the previous test results can make a good preparation for the later shaking table test.
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