摘要
分析德厚水库库区水文地质、工程地质条件,对水库右岸进行帷幕灌浆现场试验,解决吃浆量大、冒浆严重问题,获取该区帷幕灌浆施工需要的技术参数。灌浆试验主要采用孔口封闭、孔内循环、自上而下和分段卡塞相结合的综合灌浆法。通过灌浆试验,分析灌浆时存在的问题并对灌浆结果进行分析,为施工提供参考。试验结果表明该试验能有效减小岩层透水率,并以此提出该库区帷幕灌浆施工中的技术参数,为后续的灌浆工程积累经验,供同类帷幕灌浆工程借鉴。
Based on the hydrogeological and engineering geological conditions of the Dehou reservoir area,the curtain grouting field tests were conducted at the right bank of the reservoir for the mitigation the large quantity of grouting slurry loss that pumping of slurry at various locations.The objective of the in-situ curtain grouting tests is to optimize the grouting parameters.The techniques used in the curtain grouting tests are top of borehole sealed,inner circulation,and sectional grouting by plugging from top of the borehole down to the bottom.This paper analyzes the problems encountered during the grouting tests and"lesson learned"suggestions are also provided.The results indicate that the curtain grouting can effectively reduce the seepage in the bedrock.
作者
陈科平
程伟洋
陈冠军
CHEN Keping;CHENG Weiyang;CHEN Guanjun(School of Geosciences and Info-Physics,Central South University,Changsha 410083;Key Laboratory of Nonferrous Metals Mineralization Prediction and Geological Environment Monitoring,Ministry of Education,Changsha 410083;Hunan Hongyu Engineering Group Co.Ltd.,Changsha 410117)
出处
《土工基础》
2019年第5期609-612,共4页
Soil Engineering and Foundation
关键词
帷幕灌浆
现场试验
压水试验
效果分析
Curtain Grouting
Field Test
Groundwater Injection Tests
Effectiveness Analysis
Dehou Reservoir
