滑坡考虑抗剪洞加固的抗滑稳定分析  

Anti-sliding stability analysis of a landslide considering the shear hole reinforced

作　　者：姬永尚[1] JI Yongshang(Hydro and Power Design Institute of Xinjiang,Urumqi 830000,China)

机构地区：[1]新疆水利水电勘测设计研究院,乌鲁木齐830000

出　　处：《水科学与工程技术》2021年第4期82-85,共4页Water Sciences and Engineering Technology

摘　　要：在建水利枢纽工程大坝下游右岸分布一古滑坡,其主要威胁泄水消力塘及下游泄洪河段。研究结果表明,滑坡体在天然工况和地震工况下稳定性系数满足规范要求,但在滑带土完全饱和工况下,部分计算剖面的安全系数低于规范要求。在对滑坡结构特征进行详细分析的基础上,采用抗剪洞加固方案,按照实际工程中常用的两种理论方法进行稳定性分析计算。结果表明,抗剪洞加固方案对滑坡体稳定性有较大提高,加固后稳定性系数满足规范要求。Under construction in water conservancy engineering an ancient landslide dam on the right bank of the downstream distribution,the main threat to drain plunge pool and flood discharge river downstream.Research results show that the landslide stability coefficient under the natural condition and seismic conditions meet the specification requirements,but in the sliding zone completely saturated condition,part of the safety coefficient of section below the specification requirements.Based on the characteristics of landslide structure on the basis of detailed analysis,the shear reinforcement scheme,according to the two theoretical methods used in practical engineering for stability analysis and calculation.The results showed that the shear hole reinforcement scheme improve the quality on the stability of landslide,stability coefficient of the reinforced meet specification requirements.

关 键 词：水利枢纽 滑坡 抗剪洞 稳定分析 

分 类 号：P641[天文地球—地质矿产勘探]