| 有压动水覆盖层帷幕成幕及控制灌浆技术研究与应用 |
| 投稿时间：2021-03-31 修订日期：2021-07-07 点此下载全文 |
| 引用本文：谭宝宝,冯杨文,陈晓东,等.有压动水覆盖层帷幕成幕及控制灌浆技术研究与应用[J].钻探工程,2021,48(12):120-125.TAN Baobao,FENG Yangwen,CHEN Xiaodong,et al. Research and application of curtain forming and controlled grouting technology for overburden with pressurized flow water[J]. Drilling Engineering, 2021,48(12):120-125. |
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| 中文摘要:蓄水条件一定水头下的坝基覆盖层渗漏采用灌浆进行防渗处理时，面临水泥浆液抗动水冲释性差而被流水稀释分散、水流冲失以致灌浆难以成幕防渗以及耗浆量极大等难题。结合工程实践，本文研究了采用抗动水分散浆液、膏状浆液，遵循先堵后灌原则，上下游分排灌注不同浆液，解决了有压动水覆盖层防渗帷幕成幕及控制灌浆相关问题。工程应用效果好，为类似渗漏工程治理提供了重要的参考借鉴。 |
| 中文关键词:坝基覆盖层 有压动水 渗漏治理 帷幕灌浆 控制灌浆 |
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| Research and application of curtain forming and controlled grouting technology for overburden with pressurized flow water |
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| Abstract:During the process of grouting for seepage treatment of dam foundation overburden under some water head when retaining water， problems such as slurry dispersing， incomplete curtain， large consumption of cement， may be encountered. In reference to field practice， this paper investigates the use of the anti-washout slurry and the paste-like slurry， the injection-after-sealing principle， and grouting in tiers of different types of slurry for the upstream and downstream to solve the technical problems related to grouting of the overburden anti-seepage curtain and control of grouting under pressurized flow water. The technology produced good field results and can provide important reference for similar seepage treatment. |
| keywords:dam foundation overburden pressurized flow water seepage treatment curtain grouting control grouting |
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