地震作用下顺层岩质边坡锚固特性的拟动力分析

doi:10.13722/j.cnki.jrme.2015.1742

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Abstract Anchoring technology has played an important role in slope reinforcements in engineering practice. However，the failure mechanism of anchored slopes subjected to seismic loads is not fully understood at present. Therefore，the study of dynamic behavior of anchored slopes is of great significance for the optimal design of slope reinforcements. In this paper，the pseudo-dynamic method is used to simulate the input of acceleration-time history. Based on the upper bound theorem of limit analysis，the mathematical expressions of the required reinforcement force when the layered rock slope under seismic loads is in critical status and the factor of safety of it are then deduced. Finally，the parametric studies on the influence of the dip angle of bolt，the dip angle of joint surface，seismic acceleration coefficients，seismic amplification factor，joint cohesion，joint friction angle on the required reinforcement force when the slope is in critical status are discussed. The results indicate that the stability of layered rock slope is influenced to some extents by all the parameters mentioned above. In addition，with the increase of joint friction angle，the horizontal seismic acceleration coefficient and seismic amplification factor have greater effects on the required reinforcement force，while the dip angle of bolt，the dip angle of joint surface，the vertical seismic acceleration coefficient and joint cohesion have less influence on it.

Key words： slope engineering seismic loads pseudo-dynamic analysis the upper bound theorem of limit analysis total reinforcement force

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	Articles by authors
	ZHOU Wei
	LI Haibo
	LIU Yaqun
	CHAI Shaobo
	LIU Jingsen

Cite this article:

ZHOU Wei,LI Haibo,LIU Yaqun, et al. Pseudo-dynamic analysis of anchored characteristics of layered rock slopes subjected to seismic loads[J]. , 2016, 35(S2): 3570-3576.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.1742 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS2/3570

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