CCS水电站首部枢纽坝基帷幕灌浆试验研究
|
摘要
针对CCS水电站首部枢纽坝基强风化花岗闪长岩透水地层,进行了现场帷幕灌浆试验防渗处理。试验以水泥、水、膨润土及减水剂作为灌浆材料,采用了不同的配合比,确定了灌浆施工工艺、灌浆参数及有效灌浆方法,并对灌浆效果进行了检测分析。结果表明,帷幕灌浆有效降低了坝基岩体的透水性,提高了防渗能力。试验结果为坝基岩体的大规模防渗处理提供了可靠的依据。
For strongly weathered granodiorite permeable formation in complex dam foundation of CCS hydropower station,the paper conducted field curtain grouting test of seepage treatment.The test uses cement,water,bentonite and water reducer as grouting material,the paper determines the grouting construction technology by different mix proportion,grouting parameters and effective grouting methods,and analyzes grouting effect.The results showed that the curtain grouting effectively reduced the permeability of rock mass on dam foundation,improved seepage capacity.The test results provided reliable basis for large-scale seepage treatment of rockmass on dam foundation.
For strongly weathered granodiorite permeable formation in complex dam foundation of CCS hydropower station,the paper conducted field curtain grouting test of seepage treatment.The test uses cement,water,bentonite and water reducer as grouting material,the paper determines the grouting construction technology by different mix proportion,grouting parameters and effective grouting methods,and analyzes grouting effect.The results showed that the curtain grouting effectively reduced the permeability of rock mass on dam foundation,improved seepage capacity.The test results provided reliable basis for large-scale seepage treatment of rockmass on dam foundation.
引文
[1]Yellow River Engineering Consulting Co.,Ltd.The Basic Design Report of Coca-Codo Sinclair Hydroelectric project[R].Zhengzhou:Yellow River Engineering Consulting Co.,Ltd.,2011.
[2]DL/T 5148-2012,水工建筑物水泥灌浆施工技术规范[S].
[3]张景秀.坝基防渗与灌浆技术[M].北京:中国水利水电出版社,2002.
[4]马国彦,林秀山.水利水电灌浆与地下水排水[M].北京:中国水利水电出版社,2001.
[5]SL31—2003,水利水电工程钻孔压水试验规程[S].
[6]马志坚.中卫市照壁山水库坝基处理灌浆试验[J].水利与建筑学报,2009(2):58-60.
[7]孙钊.大坝基岩灌浆[M].北京:中国水利水电出版社,2004:58-70.
[8]吴火兵,颜婉鸿.锦屏一级水电站f5断层水泥固结灌浆试验[J].人民长江,2008(19):70-71.
[9]张景秀.坝基防渗与灌浆技术[M].北京:中国水利水电出版社,2002:158-168.
[10]孙宪国.白莲河电站上库帷幕灌浆试验工艺及效果分析[J].人民长江,2009,40(6):37-38.
[11]陈文,刘永球,仇学明.锦屏水电站左岸帷幕灌浆试验与分析[J].水利水电技术,2009,39(9):22-25.
[12]张世宝,郭艳利,郭建邦,等.南水北调中线干渠卵石透水地基帷幕灌浆试验研究[J].混凝土,2012(12):106-108.
[2]DL/T 5148-2012,水工建筑物水泥灌浆施工技术规范[S].
[3]张景秀.坝基防渗与灌浆技术[M].北京:中国水利水电出版社,2002.
[4]马国彦,林秀山.水利水电灌浆与地下水排水[M].北京:中国水利水电出版社,2001.
[5]SL31—2003,水利水电工程钻孔压水试验规程[S].
[6]马志坚.中卫市照壁山水库坝基处理灌浆试验[J].水利与建筑学报,2009(2):58-60.
[7]孙钊.大坝基岩灌浆[M].北京:中国水利水电出版社,2004:58-70.
[8]吴火兵,颜婉鸿.锦屏一级水电站f5断层水泥固结灌浆试验[J].人民长江,2008(19):70-71.
[9]张景秀.坝基防渗与灌浆技术[M].北京:中国水利水电出版社,2002:158-168.
[10]孙宪国.白莲河电站上库帷幕灌浆试验工艺及效果分析[J].人民长江,2009,40(6):37-38.
[11]陈文,刘永球,仇学明.锦屏水电站左岸帷幕灌浆试验与分析[J].水利水电技术,2009,39(9):22-25.
[12]张世宝,郭艳利,郭建邦,等.南水北调中线干渠卵石透水地基帷幕灌浆试验研究[J].混凝土,2012(12):106-108.