Abstract: This article introduces three methods of calculation on deep layer stabilization of dam base according to the theory of rigid body limit balance, through the example of dam block No. 16 of Manwan power station, analyses the deep layer stabilization of dam Base of setting alveolus and anchor cable, and uses equal safety coefficient to deduce calculation formula on deep layer stabi1ization of dam base, presents two expression forms including single safety coefficient method and subentry coefficient limit state method, and supplies calculation method of parts of parameters.

摘要： 本文介绍了按刚体极限平衡理论计算坝基抗滑深层稳定计算安全系数的三种常用方法，以漫湾大坝16号坝段为例，对设齿槽和锚索的坝基深层稳定进行了分析，并用等安全系数法推导了坝基深层稳定计算公式，给出了单一安全系数法和分项系数极限状态法两种表达形式。