土工基础

›› 2019, Vol. 33 ›› Issue (5): 609-61.

• 工程实录 • 上一篇    下一篇

德厚水库右岸帷幕灌浆试验与研究

陈科平1,2，程伟洋1,2，陈冠军3   

  1. (1.中南大学 地球科学与信息物理学院，长沙 410083； 2.有色金属成矿预测与地质环境监测教育部重点实验室，长沙 410083；3.湖南宏禹工程集团有限公司，长沙 410117）
  • 收稿日期:2018-12-13 修回日期:2019-01-03 出版日期:2019-10-20 发布日期:2019-10-22
  • 作者简介:陈科平（1968-），男，副教授，研究方向为岩土工程。

Testing and Evaluation of the Curtain Grouting at the Right Bank of Dehou Reservoir

CHEN Keping1,2, CHENG Weiyang1,2, CHEN Guanjun3   

  1. (1.School of Geosciences and InfoPhysics, Central South University, Changsha 410083;
    2.Key Laboratory of Nonferrous Metals Mineralization Prediction and Geological Environment Monitoring, Ministry of Education, Changsha 410083;
    3.Hunan Hongyu Engineering Group Co. Ltd., Changsha 410117)
  • Received:2018-12-13 Revised:2019-01-03 Online:2019-10-20 Published:2019-10-22

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。

关键词: 帷幕灌浆, 现场试验, 压水试验, 效果分析

Abstract: 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.

Key words: Curtain Grouting, Field Test, Groundwater Injection Tests, Effectiveness Analysis, Dehou Reservoir