重庆万盛区刀子岩危岩稳定性分析及防治

doi:10.3969/j.issn.1674-0696.2014.03.20

重庆交通大学学报（自然科学版） ›› 2014, Vol. 33 ›› Issue (3): 92-97.DOI: 10.3969/j.issn.1674-0696.2014.03.20

重庆万盛区刀子岩危岩稳定性分析及防治

廖云平^1,2，王小委³

1.重庆地质矿产研究院外生成矿与矿山环境重庆市重点实验室，重庆 400042;2.煤炭资源与安全开采国家重点实验室重庆研究中心，重庆 400042;3.重庆交通大学岩土工程研究所，重庆 400074

收稿日期:2013-02-25 修回日期:2014-03-06 出版日期:2014-06-15 发布日期:2015-01-22
作者简介:廖云平(1981—)，男，重庆永川人，硕士研究生，主要从事环境地质灾害防治及地下工程地质环境保护方面的研究。E-mail:cqlyp@163.com
基金资助:
国家自然科学基金项目(11272185 ， 50678182)

Stability Evaluation and Control Strategy for Daoziyan Unstable Rock in Wansheng District of Chongqing

Liao Yunping ^1,2, Wang Xiaowei³

1.Chongqing Key Laboratory of Exogenic Mineralization & Mine Eniveronment , Chongqing Research Inst?lute of Geology & Mineral Resources , Chongqing 400042 , China; 2.Chongqing Research Center of State Key Laboratory of Coal Resources & Safe Mining , Chongqing 400042 , China; 3.Institute of Geotechnical Engineering , Chongqing Jiaotong University , Chongqing 400074 , China

Received:2013-02-25 Revised:2014-03-06 Online:2014-06-15 Published:2015-01-22

摘要/Abstract

摘要： 在裂隙切割和溶蚀作用下，万盛区刀子岩陡崖局部已演变成危岩，其破坏方式可分为滑移式、倾倒式和坠落式 3种类型。对3种危岩体的稳定性进行了定性和定量分析。研究表明:天然条件下，危岩体多处于基本稳定-稳定状态;暴雨工况下，38%的危岩体处于基本稳定"稳定状态，62%处于欠稳定-不稳定，具有很大的潜在危险。提出了危岩防治方案一-采用主动防治与被动防治相结合的方式，针对具体的危岩体选用衬砌、封闭、锚固、清除、地表排水及拦石等措施。

关键词: 工程地质学, 危岩, 稳定性

Abstract: Due to the cutting by joints and dissolution , part of the Daoziyan cliff in Wansheng district was evolved into unsta ble rock blocks , and the failure modes could be divided into three types: sliding , toppling and falling. The qualitative and quantitative analysis on the stabilities of the above 3 types of unstable rock was calTied out. The results indicate that: in natural conditions , most of the unstable rock blocks are in basically stable-steady state; in rainstorm conditions , 38% of the unstable rock blocks are in basically stable-steady state , and 62% are understable-unstable , which have great potential danger. The control stratgies for unstable rock blocks were proposed , combing with active and passive control stratgies. And for the specific rock , the treatments including lining , closing , anchorage , clearing , surface drainage and blocking stone were selected.

Key words: geology engineering, unstable rock block, stability

中图分类号:

P642.21

廖云平，王小委. 重庆万盛区刀子岩危岩稳定性分析及防治[J]. 重庆交通大学学报（自然科学版）, 2014, 33(3): 92-97.

Liao Yunping , Wang Xiaowei. Stability Evaluation and Control Strategy for Daoziyan Unstable Rock in Wansheng District of Chongqing[J]. Journal of Chongqing Jiaotong University(Natural Science), 2014, 33(3): 92-97.

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重庆万盛区刀子岩危岩稳定性分析及防治

Stability Evaluation and Control Strategy for Daoziyan Unstable Rock in Wansheng District of Chongqing

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