地下结构地震破坏机制试验研究

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Abstract By use of self-designed laminar shear container，a shaking table test on underground structure which lays in clay is conducted. The results of comparing the acceleration time-history and Fourier spectrum of station model and soil，and the analyzing regulations of the underground structure dynamic strain and the underground structure failure macro phenomena show that the failure mechanism of underground structure under underground seismic response is mainly controlled by the surrounding soil. The softer soil is，the easier underground structure be damaged；the shallower the depth is，the more serious underground structures be damaged. Underground structure seismic damage mode is the relative displacement between adjacent layers caused by shear displacement of surrounding soil. When the displacement is too large，the floor and side-wall would appear tensile failure. Meanwhile，shear or bending moment acting on columns will cause shear damage，bending damage or combination of shear damage and bending damage.

Key words： underground structure laminar shear container shaking table test seismic failure mechanism seismic failure mode

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	Articles by authors
	SUN Haifeng1
	2
	JING Liping1
	WANG Shuwei1
	3
	MENG Xianchun1

Cite this article:

SUN Haifeng1,2,JING Liping1, et al. EXPERIMENTAL STUDY OF SEISMIC FAILURE MECHANISM OF UNDERGROUND STRUCTURE[J]. , 2013, 32(s2): 3627-3635.

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/3627

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