利用岩体完整性指数评价基岩灌浆效果的探讨

Discussion on Appraise of Effect of Grouting in Bed Rock Using Rock Mass Integrity Indexes

利用云南省富源县响水河水库高压帷幕灌浆试验研究所获得的岩体声波测试成果,提出了以岩体完整性指数评价灌浆效果的概念,并在GB50218-94中Kv值与定性划分岩体完整程度对应关系五级分档〔1〕的基础上,提出了适合于灌浆质量控制要求的八级分档标准,且灌前灌后的岩体完整程度按八级分档时以提高一级为宜。

By using the rock mass acoustic sounding results obtained from the high pressure curtain grouting test for the Xiangshuihe reservoir in Fuyuan County, Yunnan Province the paper has advanced a concept of appraising the grouting effect using the rock mass integrity indexes and presented 8 categories division criterion to meet the requirements for grouting quality control based on the 5 categories corresponding to Kv value in GB50218 - 94 and qualitative division of rock mass integrity. The paper considers it preferable to increase by 1 category when the 8 categories criterion is to be employed to divide the rock mass integrity before and after grouting.