地震作用下柔性挡墙变形特征分析

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Abstract In order to study the earthquake dynamic response and deformation mechanism of flexible wall，the large-scale shaking table model tests for reinforced gabion wall and reinforced ecological wall were performed. The results showed that the distribution of horizontal peak dynamic earth pressures along height is with large value at both ends and small value at the middle for the two kinds of flexible walls，which is contrary to the distribution of horizontal peak dynamic earth pressures of rigid retaining wall. Due to the bulging deformation under earthquake，the value of horizontal peak dynamic earth pressures of the reinforced gabion wall and reinforced ecological wall is substantially smaller than that of rigid retaining wall. The national standard does take into account the effect of seismic earth pressure attenuation after deformation of flexible wall，the seismic design of flexible wall according to the current standard is conservative. Through analysis，to the flexible wall such as reinforced gabion wall and reinforced ecological wall，in ensuring the seismic stability of the premise，the seismic earth pressures can be reduced properly to save cost. For the seismic design of flexible wall in railway and highway，while maintaining the integral stability of the flexible wall，local-deformation control should be paid attention to too，improving the engineering properties of filling materials and increasing elastic modulus of walling materials as well as thickness of the wall can reduce the displacement of the flexible wall.

Key words： soil mechanics flexible wall deformation characteristics seismic action shaking table model test

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	Articles by authors
	ZHU Hongwei1
	2
	YAO Lingkan1
	LIU Zhaosheng1
	CHEN Xiaolong1

Cite this article:

ZHU Hongwei1,2,YAO Lingkan1, et al. RESEARCH ON SEISMIC DEFORMATION CHARACTERISTICS OF FLEXIBLE WALL[J]. , 2012, 31(S1): 2829-2838.

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https://rockmech.whrsm.ac.cn/EN/Y2012/V31/IS1/2829

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