地震条件下被动土压力及其分布分析的新方法

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Abstract Research purposes:At present, the analysis methods about seismic passive earth pressure and its distribution have several defects, including unreasonable distribution rule and position, complex derivation, harsh application conditions and so on. The seismic passive earth pressure problem is translated into non-seismic passive earth pressure problem in this paper by using the transform method with rotating calculation model of retaining wall. This method has large reference value to simplify the calculation process of seismic passive earth pressure and its distribution.Research conclusions:Based on the non-seismic passive earth pressure formulations with horizontal slices analysis method, the analytical formulas of seismic passive earth pressure intensity distribution, resultant force of earth pressure and its point position are obtained directly, and the explicit solution of critical rupture angle is got by graphic method. The influencing factors including horizontal and vertical seismic accelerations,different angle of wall back,cohesion and external friction angle between filler and back of retaining wall,equispaced overloading are considered. The formulas can be used for seismic passive earth pressure calculations of cohesive soil with common border condition. The deducing process of seismic passive earth pressure formulations is simplified and unified greatly by using the method in this paper. The seismic passive earth pressure theory is perfected much more. The research results can be applied to do fast computation about seismic passive earth pressure of retaining wall.

Key words： seismic earth pressure cohesive soil horizontal slices analysis method earth pressure distribution rotating seismic angle method

Received: 11 April 2014

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TU 442

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	ZHANG Guo-xiang
	ZHANG Hong-bin
	AN Guan-feng

Cite this article:

ZHANG Guo-xiang,ZHANG Hong-bin,AN Guan-feng. New Analysis Method of Seismic Passive Earth Pressure and Its Distribution on a Retaining Wall[J]. 铁道工程, 2014, 31(9): 8-12.

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2014/V31/I9/8

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