瓮安瞎猫冲水库防渗帷幕灌浆设计优化分析  

Optimization Analysis of Curtain Grouting Design for Seepage Control of Xiamaochong Reservoir in Weng'an

作　　者：王孟其 WANG Mengqi(Weng'an County Water Affairs Bureau,Qiannan 550400,China)

机构地区：[1]瓮安县水务局,贵州川黔南州市550400

出　　处：《河南水利与南水北调》2024年第12期55-56,58,共3页Henan Water Resources & South-to-North Water Diversion

摘　　要：为了解决瓮安瞎猫冲水库存在的坝基渗漏问题,采用先导孔防渗帷幕灌浆设计水库除险加固工程,通过简化毕肖普法研究坝体目标剖面抗滑稳定性,结果表明下游坝坡存在渗漏问题,采取帷幕灌浆实施除险加固工程,接着基于先导孔压水试验进一步优化帷幕灌浆防渗下限与延伸边界值,使得此次除险加固设计与施工满足帷幕防渗避患的效果。可为类似工程提供借鉴意义。In order to control the dam foundation leakage of Xiamaochong Reservoir in the Weng'an,in this paper,optimization of the pilot hole curtain grouting design for seepage control of reservoir reinforcement is analyzed.The simplified Bishop method is used in the study of the anti-slip stability of the target profile of dam body,and the results indicate that leakage exist in the downstream dam slope.Curtain grouting is implemented for reservoir reinforcement,and the optimization of the lower limit and extension boundary value of curtain grouting are further optimized based on the pilot hole pressurized water test.The design and construction of the reinforcement project reach the target of dam body seepage control,that could provide reference for similar projects.

关 键 词：坝基渗漏 防渗帷幕灌浆 简化毕肖普法 抗滑稳定性 

分 类 号：TV543[水利工程—水利水电工程]