锚杆(索)在边坡稳定性中的贡献作用探析  

Analysis the Contribution of Anchor(Cable)in Slope Stability

作　　者：杨海星 马杰朋 吉正勇 刘清明 张习文 黎浩 YANG Haixing;MA Jiepeng;JI Zhengyong;LIU Qinming;ZHANG Xiwen;LI Hao(Sichuan Zhide Geotechnical Engineering Co.,Ltd.Chengdu 610095,China)

机构地区：[1]四川志德岩土工程有限责任公司,成都610095

出　　处：《广东土木与建筑》2024年第4期60-65,共6页Guangdong Architecture Civil Engineering

摘　　要：杆(索)是边坡治理中常用土工结构,在进行边坡设计时《建筑边坡工程技术规范:GB50330—2013》[1]仅给出不同滑面边坡稳定性的计算方法,并未给出加固治理后边坡稳定性的计算方法。基于瑞典条分法及简化Bishop边坡稳定性分析方法,推导出含锚杆(索)的边坡稳定性计算公式。通过Excel表格进行对边坡稳定性中的抗力、下滑力及锚杆(索)作用力进行分析,然后与理正边坡商业软件计算结果进行对比,验证其正确性。最后对锚杆(索)产生的贡献是作为增加抗力还是减少下滑力进行探讨。研究成果可较直观地理解边坡稳定性计算中的瑞典条分法及简化Bishop法分析方法,对边坡设计初学者具有一定的参考意义。Anchor rod(cable)is a common geotechnical structure in slope treatment.In the design of slope,Technical code for building slope engineering:GB 50330—2013 only gives the calculation method of slope stability of different sliding surfaces,but does not give the calculation method of slope stability after reinforcement treatment.Based on the Swedish slice method and simplified Bishop slope stability analysis method,the calculation formula of slope stability with anchor(cable)is derived.The resistance,sliding force and bolt(cable)force in slope stability are analyzed by Excel table,and then compared with the calculation results of Lizheng slope commercial software to verify its correctness.Finally,the contribution of bolt(cable)is discussed as increasing resistance or reducing sliding force.The research results can intuitively understand the Swedish slice method and simplified Bishop method in slope stability calculation,which has certain reference significance for slope design beginners.

关 键 词：锚杆(索) 瑞典条分法 简化BISHOP法 边坡治理 安全系数 

分 类 号：U416.14[交通运输工程—道路与铁道工程]