高压旋喷灌浆与帷幕灌浆联合施工的坝体防渗加固技术研究

摘要

Dam prevention against seepage is the key to design and construct the hydraulic engineering,and it is common and serious to cause accidents due to leakage of water conservancy project.With increasing in complexity and difficulty of water conservancy project in China,such as large excavation,large volume,large buried depth,leakage of the dam body has become an important problem affecting the economy,environment and people's livelihood.According to the research on seepage control against dam leakage in Yanwangbizi reservoir reinforcement,analysis of various reinforcement schemes about seepage control construction comparison,the construction method combing curtain to dam foundation and jet combination to dam body was determined,the detailed construction steps were put forward for the construction plan,through inspection on the effect of seepage prevention on site,achieving a good anti-seepage effect,which will can provide references for similar projects.%坝体防渗一直是水利工程设计施工的关键,因水利工程渗漏造成的安全事故常见且较为严重.随着中国水利工程大开挖、大体量、大埋深等复杂性、难度的增加,坝体渗漏问题已经逐渐成为影响经济、环境及民生的重要问题.文章针对阎王鼻子水库大坝渗漏防渗加固展开深入研究,对比分析多种防渗施工加固方案,确定了坝基帷幕与坝体高喷相结合的施工方式,提出了该方案的具体施工步骤,通过现场防渗效果检查,取得了较好的防渗效果,可为类似工程提供参考.