| 桥巩水电站二期围堰堵漏技术研究 |
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| 引用本文： | 赵卫全,韦红梅,杨锋,符平.桥巩水电站二期围堰堵漏技术研究[J].水利与建筑工程学报,2009,7(4):13-15. |
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| 作者姓名： | 赵卫全 韦红梅 杨锋 符平 |
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| 作者单位： | 赵卫全,杨锋,符平(中国水利水电科学研究院,北京,100038);韦红梅(广西水电工程局基础分公司,广西,南宁,530000) |
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| 基金项目： | 水利部水工程安全与病害防治工程技术研究中心开放研究基金项目，中国水利水电科学研究院科研专项 |
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| 摘 要： | 广西桥巩水电站二期围堰为土石围堰,上游围堰采用粘土铺盖结合土工膜防渗,下游围堰采用高压旋喷结合静压注浆防渗。施工完成后抽水,基坑内的漏水量达到4000 m3/h以上,需进一步进行防渗处理。根据围堰的地层特点,提出了水泥膏浆灌浆防渗处理方案,对大漏量孔段采用了膏浆结合级配料的堵漏灌浆处理方法,施工实践表明,其防渗堵漏效果良好。工程经验可供类似工程参考和借鉴。
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| 关 键 词： | 土石围堰 堵漏 水泥膏浆 级配料 |
Leakage Control of Second-stage Cofferdam for Qiaogong Hydropower Station |
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| ZHAO Wei-quan,WEI Hong-mei,YANG Feng,FU Ping.Leakage Control of Second-stage Cofferdam for Qiaogong Hydropower Station[J].Journal of Water Resources Architectural Engineering,2009,7(4):13-15. |
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| Authors: | ZHAO Wei-quan WEI Hong-mei YANG Feng FU Ping |
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| Affiliation: | ZHAO Wei-quan1,WEI Hong-mei2,YANG Feng1,FU Ping1 (1.China Institute of Water Resources & Hydropower Reasearch,Beijing,100038,China,2.Foundation Engineering Company of Guangxi Hydropower Engineering Bureau,Nanning,Guangxi 530000,China) |
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| Abstract: | The second-stage cofferdam of Qiaogong Hydropower Station is an earth-rock cofferdam.The clay blanket combined with geomembrane was used for seepage control in the upstream of the cofferdam,and the high jet grouting and static pressure grouting were used in the downstream of the cofferdam.However,the amount of leakage still exceeded 4 000 m3/h inside the foundation after the construction,which needs a furthor treatment.According to the characteristics of the cofferdam,the grouting method of cement-paste slu... |
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| Keywords: | earth-rock cofferdam leakage control cement paste aggregates |
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