帷幕灌浆的异常分析

Analysis of Abnormal Curtain Grouting

水井山水库库区为板岩夹碳酸盐岩和灰岩地层,海拔高和断层多,为渗漏通道,灌浆前透水率值小、耗灰量低。选择灌与不灌或怎样灌,经两次试验后,采取提高压力、缩短段长方式继续灌浆。结果表明,决策正确,方法得当,且灌后质量高,达到预期效果。

The reservoir area of Shuijingshan Reservoir is composed of slate,carbonate and limestone strata with high altitude and many faults.It is a seepage passage with low water permeability value and low ash consumption before grouting.After two tests,this paper adopts the method of increasing pressure and shortening section length to continue grouting.The results show that the decision is correct,the method is correct and the quality after grouting is high,achieving the expected results.