万家口子水电站坝基深孔高压固结灌浆施工及评价

来源 :中国水利学会地基与基础工程专业委员会第13次全国学术会议 | 被引量 : 0次 | 上传用户:HUANming520
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本文针对万家口子水电站坝基深孔高压固结灌浆软弱夹层及断层破碎带灌浆时出现的"吸水不吸浆"现象,采取了"高压风水联合冲洗"和"群孔冲洗"的施工工艺,并针对钻进过程中岩石强度高、施工工期短等制约因素采取了"高风压冲击钻进"的施工方法,施工工效高、进度快,确保了项目的按期完工.灌后压水试验及声波检测结果全部满足设计要求,灌浆效果良好,可为类似工程施工提供参考借鉴.
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