长河坝水电站深孔帷幕灌浆试验与分析

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英文篇名：Test and Analysis for Deep Hole Curtain Grouting at Changgeba Hydropower Station 作者：康路明 ; 吕清岚 ; 杨培青 英文作者：KANG Luming;LU Qinglan;YANG Peiqing;Changheba Construction Bureau of Sinohydro Engineering Bureau 5 Corporation; 关键词：长河坝水电站 ; 深孔帷幕 ; 灌浆试验 英文关键词：Changheba hydropower station;;deep hole curtain;;grouting test 中文刊名：SCSL 英文刊名：Sichuan Water Power 机构：中国水利水电第五工程局有限公司长河坝施工局; 出版日期：2015-06-15 出版单位：四川水力发电 年：2015 期：v.34;No.174 语种：中文; 页：SCSL201503013 页数：8 CN：03 ISSN：51-1150/TV 分类号：45-51+142

摘要

长河坝水电站具有工程地质条件复杂、运行水头高、防渗要求高等诸多不利条件为慎重起见,在左岸现场进行了帷幕灌浆试验,从钻灌工艺、单位注入率、灌注前后透水率、物探检测等方面进行分析得知,灌浆效果显著,达到了深孔帷幕灌浆试验的预期目的并得出了帷幕灌浆设计的必要参数,为300 m级土石坝深孔帷幕灌浆积累了经验,可供同类大型土石坝工程施工时参考。
        Because of many unfavorable conditions,such as complicated geological conditions,high operation head and high requirements for seepage control,curtain grouting test was performed in left bank with good grouting results by analyzing drilling and grouting technology,unit injection rate,permeability rate before and after injection and geophysical detection,achieving the expected results of deep hole curtain grouting test and gaining necessary parameters for curtain grouting design. Experiences are gained for deep hole curtain grouting for 300 m high earth and rockfill dam and references are given to the similar project.

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