边坡锚固工程分析中的水平条分法  

Horizontal Slice Method for the Stability Analysis of Reinforced Slopes

作　　者：魏作安[1,2] 朱彬[1,3] 万玲[1,3] 周永昆[1,3] 陈宇龙[3] 

机构地区：[1]重庆大学西南资源开发及环境灾害控制工程教育部重点实验室 [2]湖南科技大学湖南省煤矿安全开采技术重点实验室,湖南湘潭411201 [3]重庆大学资源与环境科学学院,重庆400044

出　　处：《土木建筑与环境工程》2010年第3期53-56,共4页Journal of Civil,Architectural & Environment Engineering

基　　金：国家自然科学基金资助项目(10772205);重庆市自然科学基金资助项目(CSTC;2007BB0136);中国博士后科学基金资助项目(20070420123);高等学校博士学科点专项科研基金(200806110012);湖南省煤矿安全开采技术重点实验室开放基金资助项目(200806)

摘　　要：对目前中国规范推荐用于边坡加固计算的垂直条分传递系数法进行研究,发现将该方法用于边坡锚固受力分析时,不仅存在垂直条块与加固结构体(锚杆和锚索)相互交叉,而且计算得出的锚固力与加固体的实际锚固力存在偏差等缺陷。在相关资料提出的、用于加筋土稳定性分析的水平条分法基础上,结合边坡锚固工程的特点,将该水平条分法做进一步拓展,使其能适用于锚杆和锚索等边坡锚固工程的稳定性计算,并通过工程实例对拓展后的水平条分法进行了验证。Relevant national codes usually require the transmitting coefficient method to be employed for the stability analysis of slope reinforcement, in which sliding mass is usually divided into a number of vertical slices. For some support technologies, such as rock bolting and anchor cable, the intersections between the slices and the anchor-bar, and the forces mobilized in the reinforcements are different from the assumptions in this method. Thus the transmitting coefficient method confronts some difficulties during practical applications, which would influence the project quality of reinforcements. A new Horizontal Slice Method was proposed based on the overseas relevant literatures to overcome these difficulties in the stability analysis of rock bolting and anchor cable slopes.

关 键 词：水平条分法 边坡加固 锚杆 极限平衡法 土力学 

分 类 号：TU457[建筑科学—岩土工程]