长江科学院院报 ›› 2017, Vol. 34 ›› Issue (2): 114-119.DOI: 10.11988/ckyyb.20170025

• 工程应用及其他 • 上一篇    下一篇

复合土工膜在高土石坝中的应用及施工质量控制

陈云1,胡志刚1,吴正萍2,徐晗1   

  1. 1.长江科学院 水利部岩土力学与工程重点实验室,武汉 430010;
    2.青海华鑫水电开发有限公司,西宁 810000
  • 收稿日期:2017-01-05 修回日期:2017-01-05 出版日期:2017-02-01 发布日期:2017-02-08
  • 作者简介:陈 云(1970-),男,湖北钟祥人,高级工程师,硕士,主要从事土工和水电站工程质量检测方面的研究工作,(电话)027-82828426(电子信箱)chenyun@mail.crsri.cn。
  • 基金资助:
    中央级公益性科研院所基本科研业务费项目(CKSF2015035/YT)

Application and Construction Quality Control of Composite Geomembrane in High Earth Rockfill Dam

CHEN Yun1,HU Zhi-gang1,WU Zheng-ping2,XU Han1   

  1. 1.Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources,Yangtze River Scientific Research Institute,Wuhan 430010,China;
    2.Qinghai Huaxin Hydroelectric Power
    Development Co. Ltd.,Xining 810000,China
  • Received:2017-01-05 Revised:2017-01-05 Online:2017-02-01 Published:2017-02-08

摘要: 复合土工膜在我国水利水电工程中的应用目前主要还集中于渠道、低土石坝、施工围堰、病险水库渗漏治理等领域,在高土石坝中应用较少。结合复合土工膜在泸定水电站高土石坝中的应用,从复合土工膜焊接工艺、铺设施工及质量控制和焊缝质量检测等几个方面,分析总结了复合土工膜在高土石坝中的质量控制要点,提出了土工布缝合、土工膜焊接、复合土工膜与灌浆廊道混凝土墙体连接的具体施工工艺及检测方法。本研究成果可为今后复合土工膜在类似工程中的应用及质量控制提供借鉴和参考。

关键词: 复合土工膜, 高土石坝, 焊缝检测, 质量控制, 泸定水电站

Abstract: The application of composite geomembrane in water conservancy and hydropower engineering in China is mainly concentrated in fields such as channel,low dam,cofferdam,and dam seepage control,but rarely in high earth rockfill dam. With the application of composite geomembrane in the high earth rockfill dam of Luding hydropower station as a research background,we summarized some key points of quality control for composite geomembrane in terms of welding test,laying construction,quality control and welding quality inspection. We also proposed some specific construction techniques and detection methods for the suture of geotextile, welding of geomembrane, and the connection between geomembrane and concrete in grouting gallery. This research provides reference for the application and quality control of composite geomembrane in similar engineering.

Key words: composite geomembrane, high earth rockfill dam, weld inspection, quality control, Luding hydropower station

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