中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2013, Vol. 32 ›› Issue (3): 485-488.DOI: 10.3969/j.issn.1674-0696.2013.03.27

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金佛山水利工程左岸岩质高边坡稳定性分析

王俊杰12,邱珍锋1,   

  1. 1.重庆交通大学国家内河航道整治工程技术研究中心,重庆400074; 2.重庆交通大学水利水运工程教育部重点实验室,重庆400074
  • 收稿日期:2012-09-29 修回日期:2012-12-06 出版日期:2013-06-15 发布日期:2015-03-12
  • 作者简介:王俊杰(1973—),男,甘肃陇西人,教授,博士后,主要从事地质工程、岩土工程方面的研究。E-mail:wangjunjiehhu@163.com。

Stability Analysis of High Rock Slope on Left Bank of Jinfoshan Hydraulic Engineering

Wang Junjie12,Qiu Zhenfeng12   

  1. 1.National Engineering Research Center for Inland Waterway Regulation,Chongqing Jiaotong University, Chongqing 400074,China; 2.Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2012-09-29 Revised:2012-12-06 Online:2013-06-15 Published:2015-03-12

摘要: 结合工程地质条件、边坡形态规模和变形破坏机理,考虑岩质边坡天然和饱和两种含水状态,采用有限元强度 折减法对重庆市金佛山水利工程坝址区左岸岩质高边坡进行分析,研究了岩质高边坡在天然状态、开挖和加固时等 不同工况下的稳定安全系数。结果表明:各种工况下安全系数满足规范要求,边坡是一个下部为顺层牵引-塑流性 质、上部为压致拉裂推移式潜在滑坡。开挖部分岩体风化层有利于边坡稳定,采用锚喷加固后岩质高边坡安全系数 明显提高,边坡现状整体稳定,发生大规模破坏的可能性极小。

关键词: 岩质边坡, 有限元强度折减法, 破坏机制, 牵引塑性流动, 压制拉裂

Abstract: Combining with the engineering geological condition,the scale of slope shape as well as the mechanism of deformation and failure,FEM strength reduction method is used to do stability analysis of high rock slope on the left bank of Jinfoshan hydraulic engineering dam site in Chongqing,considering the two moisture states in the rock slope,natural and saturated. The stability safety factors of the high rock slope in different conditions of natural state,excavation and strengthening are studied. The results show that the safety factors in all kinds of conditions meet the requirements of the specification; the slope is a potential thrust landslide with bedding traction-plastic flow property at the bottom and compressing and tension cracking at the top. Weathering of rock mass at the excavated part is good for slope stability,and the safety factors increase obviously when the shotcrete rockbolt stabilization technique is applied. The slope is stable at present and the possibility of massive destruction is minimal.

Key words: rockslope, FEMstrengthreductionmethod, failuremechanism, traction-plasticflow, compressingandtension cracking

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