| 中梁一级电站库区防渗帷幕灌浆试验效果分析 |
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| 引用本文： | 彭第,王伟.中梁一级电站库区防渗帷幕灌浆试验效果分析[J].水利水电科技进展,2011,31(5):73-78. |
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| 作者姓名： | 彭第 王伟 |
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| 作者单位： | 1. 吉林大学建设工程学院,吉林长春130026;长春工程学院岩土工程研究所,吉林长春130021
2. 中国水电基础工程局有限公司,天津,301700 |
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| 摘 要： | 中梁一级电站库区工程地质条件复杂,为获取符合工程地质条件的灌浆工艺和灌浆技术措施,选择代表性试验区进行帷幕灌浆试验。灌浆试验段布设双排帷幕灌浆孔,分3序钻灌,采用孔口封闭、自上而下分段灌浆方法;采用C20混凝土回灌溶洞,水泥砂浆充填较大裂隙;选用水泥-水玻璃浆液、水泥-粉煤灰浆液与水泥-氯化钙浆液处理泥砂碎石层。压水试验检测结果表明,地层经灌浆处理后渗透性能得到很大改善,但检查孔有5段透水率超过设计要求,试验成果未达到预定目标,灌浆试验孔孔排距很难保证把所有的渗漏通道全部堵住。建议在吃浆量大的地方和地层破碎带进行加密灌浆处理。通过试验证实灌浆工艺可行,试验区采用混凝土回填溶洞和水泥-水玻璃浆液灌注泥砂碎石层效果较好,水玻璃添加量以质量分数3%为宜。
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| 关 键 词： | 帷幕灌浆 灌浆试验 水泥-水玻璃浆液 灌浆工艺 中梁一级电站 |
| 修稿时间： | 2011/10/20 0:00:00 |
Effectiveness of grouting experiments of anti-seepage curtain in reservoir area of Zhongliang No.1 Hydropower Station |
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| PENG Di,WANG Wei.Effectiveness of grouting experiments of anti-seepage curtain in reservoir area of Zhongliang No.1 Hydropower Station[J].Advances in Science and Technology of Water Resources,2011,31(5):73-78. |
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| Authors: | PENG Di WANG Wei |
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| Affiliation: | PENG Di1,2,WANG Wei3(1.College of Construction Engineering,Jilin University,Changchun 130026,China,2.Institute of Geotechnical Engineering,Changchun Institute of Technology,Changchun 130021,3.SinoHydro Foundation Engineering Co.,Ltd.,Tianjin 301700,China) |
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| Abstract: | Based on the complex engineering geological conditions in the reservoir area of Zhongliang No.1 Hydropower Station,representative experimental area was selected for curtain grouting experiment in order to get suitable grouting technology and measures.Double-row curtain grouting holes were set up in the experimental segment and drilled by means of three steps by employing the segmental grouting method of closing the holes and grouting from top to bottom.Meanwhile,C20 concrete was employed to backfill the cav... |
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| Keywords: | curtain grouting grouting experiment cement-silicate grout grouting technology Zhongliang No 1 Hydropower Station |
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