苗尾水电站帷幕灌浆渗控试验成果分析及施工

苗尾水电站由于坝址地址条件差,渗流问题严重,必须进行帷幕灌浆施工。为了保证帷幕灌浆施工质量并为实际施工提供设计参数,开展了帷幕灌浆渗控试验分析工作。介绍了帷幕灌浆渗控试验灌浆孔、检查孔、抬动观测孔的设计方案、施工程序、施工中针对特殊问题采取的措施以及施工效果。帷幕灌浆渗控试验取得了较为满意的结果,为电站帷幕灌浆施工设计提供了翔实的资料,其经验也可为今后类似工程参考。

Construction technology of seepage control test for curtain grouting of Miaowei Hydropower Station and results analysis

Due to the poor geological condition and serious seepage at the dam site of Miaowei Hydropower Station, the curtain grouting must be carried out. To ensure the curtain construction quality and provide design parameters for practical construction, the seepage control test of curtain grouting was conducted. This paper introduces the design scheme of grouting hole, check hole, uplift observation hole, construction procedure, the measures taken for special problem in the test and its effects. The seepage control test of curtain grouting achieved success and provided detail data for design and construction of curtain grouting.