岩质边坡楔形体最优锚固角的计算方法研究  

Research on Calculation Method of Optimal Anchoring Angle for Wedge Rock Slope

作　　者：李泽[1] 周宇[1] 薛龙[1] 魏久坤 

机构地区：[1]昆明理工大学建筑工程学院工程力学系,昆明650500

出　　处：《科学技术与工程》2016年第27期122-125,130,共5页Science Technology and Engineering

基　　金：国家自然科学基金项目(51564026)资助

摘　　要：以岩质边坡楔形体为研究对象,研究其最优锚固角的计算方法。将楔形体边坡的安全系数作为目标函数,将锚固力的方向角度作为优化变量;并结合楔形体的平衡方程、结构面的屈服条件、边界条件等约束条件,提出一套使安全系数最大化的楔形体最优锚固角的计算方法。这种计算方法可以准确、简便的计算得到楔形体的最优锚固角,具有概念明确、计算精度高等特点,方便工程技术人员对楔形体的加固进行优化设计,以达到安全、经济之目的。The calculation method of the optimal anchorage angles for rock slope wedge is studied.By using equilibrium conditions of wedge body,Mohr-Coulomb yield conditions and boundary conditions of the structural planes,the optimal anchoring angle calculation method of rock slope wedge is put forward,in which the wedge slope safety coefficient is taken as the objective function.Then,the optimization strategy of mathematical programming problem is provided.This method can be convenient to get the optimal anchoring angle for wedges,and it has a clear concept,high calculation precision.So engineers and technicians can optimize the designs of the reinforcement of the wedge-shape body,thus reach the goal of safety and economy.

关 键 词：岩质边坡 锲形体 锚固角 安全系数 数学规划 

分 类 号：P642.22[天文地球—工程地质学]