传递系数法在滑坡推力计算中的应用——以通山县源头村滑坡为例  

Application of transfer coefficient method in landslide thrust calculation taking the landslide in Yuantou Village,Tongshan County as an example

作　　者：汪玮 赵子良 陈淑娟 占佳 Wang Wei;Zhao Ziliang;Chen Shujuan;Zhan Jia(The Fourth Geological Brigade,Hubei Geological Bureau,Xianning 437100,China)

机构地区：[1]湖北省地质局第四地质大队,湖北咸宁437100

出　　处：《吉林水利》2023年第5期35-39,共5页Jilin Water Resources

基　　金：2021年度湖北省省级地质灾害防治专项资金(第二批)项目(项目编号:鄂自然资函[2021]266号)。

摘　　要：基于传递系数法的基本原理及模型概化原则,介绍传递系数显式法及传递系数隐式法的区别,通过案例说明了传递系数显式法及传递系数隐式法的计算方法。对比两种计算方法发现:乘以安全系数增大下滑力的传递系数显式法较除以安全系数降低抗滑力的传递系数隐式法的滑坡推力计算结果偏大,依据显式法设计滑坡防治工程具有更高的安全储备,适合防治级别较高的滑坡或重要永久性边坡;依据隐式法设计的滑坡防治工程安全储备稍低,适合防治级别较低的滑坡或一般临时边坡。This paper expounds the basic principle and model generalization principle of transfer coefficient method,and introduces the difference between explicit transfer coefficient method and implicit transfer coefficient method,and illustrates the calculation method of explicit transfer coefficient method and implicit transfer coefficient method through the case.By comparing the two calculation methods,it is found that the landslide thrust calculation result of the explicit method which increases the sliding force by multiplying the safety factor is larger than that of the implicit method which reduces the anti-sliding force by dividing the safety factor.The landslide control engineering designed based on the explicit method has greater safety reserve,which is suitable for the prevention and control of higher grade landslide or important permanent slope.The landslide control engineering designed according to the implicit method has a slightly lower safety reserve,which is suitable for the control of low grade landslide or general temporary slope.

关 键 词：传递系数显式法 传递系数隐式法 安全系数 

分 类 号：TV871[水利工程—水利水电工程] TV223