基于平面坐标系统的倾倒式危岩稳定性研究  

Study on Stability of Toppling-type Unstable Rock Based on the Plane Coordinate System

作　　者：董捷[1,2] 宋绪国 许再良 郑刚 

机构地区：[1]天津大学建筑工程学院,天津300381 [2]铁道第三勘察设计院集团有限公司,天津300142

出　　处：《铁道标准设计》2012年第9期7-10,共4页Railway Standard Design

基　　金：国家自然科学基金资助(51108313);铁道部科技研究开发计划(2010G018-B-1);中国博士后科学基金资助(20100470776)

摘　　要：为提高岩土工程技术人员对倾倒式崩塌稳定性分析及加固设计的效率,提出了一种基于平面坐标系统的倾倒式危岩稳定性分析模型。在倾倒式危岩类型划分及角点坐标属性研究的基础上,建立了非悬挑及悬挑倾倒式崩塌抗倾覆稳定安全系数的计算方法。基于已建立的倾倒式崩塌稳定性计算方法,采用C#开发研制了倾倒式崩塌稳定性分析软件。采用上述理论方法及编制的应用软件,针对重庆市飞来寺附近某危岩体的稳定性进行了计算,并分析了给定安全系数条件下的加固力大小。实践表明,运用本文建立的力学模型及研发的稳定性分析软件,开展危岩稳定性分析及工程设计是可行的。To improve the efficiency of stability analysis of toppling-type unstable rock and its reinforcement design for the geotechnical personnel,this paper presents a stability analysis method which is based on the plane coordinate system for the toppling-type unstable rock.The calculation methods which service in cantilever and non-cantilever toppling-type unstable rock were established on the basis of their type classification and research on the attributes of corner points.Based on the established toppling-type collapse stability calculation method,the software for the stability analysis of toppling-type unstable rock was developed by using C# programming tools.Adopting the theoretical method and system application software above,a dangerous rock near Feilai Temple in Chongqing City about its stability was studied and the strengthening forces were calculated under the condition of the given safety factors.Practice shows that,the mechanical model and the stability analysis software in this paper are helpful to stability analysis and design of toppling-type unstable rock.

关 键 词：危岩崩塌 倾倒式危岩 平面坐标 稳定性 

分 类 号：TU4[建筑科学—土工工程]