某水电站f18断层水泥+化学浆液复合灌浆施工  

Compound grouting using cement+chemical slurry for the fl8 fault of a hydropower station

作　　者：贡建兵[1] 李焰 

机构地区：[1]湖北清江水电开发有限责任公司,湖北宜昌443002 [2]中国葛洲坝集团勘测设计院有限公司,湖北宜昌443002

出　　处：《大坝与安全》2014年第2期56-60,共5页Dam & Safety

摘　　要：某水电站一断层贯穿坝基上下游,在河床上游与水库联系,且断层及下盘煌斑岩脉岩体破碎、性状差,在水库运行期长期高压水渗透作用下,可能发生逐渐软化、泥化现象,形成渗漏通道,导致坝体局部开裂。为了提高该断层的抗渗、抗变形能力等,在断层区域布置了水泥+化学浆液灌浆孔进行复合灌浆补强处理。介绍了灌浆施工技术及类似工程可以借鉴的工艺方法。A fault penetrates the dam foundation and connects reservoir at the upstream river bed. As the broken rock and poor performance of the fault and the lamprophyre underneath, argillization and soft-ening may occur with long-term seepage of high-pressure water. This may form a seepage passage in-side the dam body and cause cracks. To improve the resistance of seepage and deformation of the fault, compound grouting using cement＋chemical slurry was carried out. This paper introduced the grouting construction, for reference.

关 键 词：断层 水泥-化学浆液 复合灌浆 水电站 

分 类 号：TV543[水利工程—水利水电工程]