| 水泥-水玻璃注浆在围堰防渗漏浆处理中的应用 |
| 投稿时间：2016-07-19 修订日期：2016-08-03 点此下载全文 |
| 引用本文：袁超鹏,王胜,吴秋红.水泥-水玻璃注浆在围堰防渗漏浆处理中的应用[J].钻探工程,2016,43(10):68-71.YUAN Chao-peng,WANG Sheng,WU Qiu-hong. Application of Cement-Sodium Silicate Grouting in Slurry Leakage Processing of Cofferdam Seepage Control[J]. Drilling Engineering, 2016,43(10):68-71. |
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| 基金项目:四川省教育厅重点项目“硅酸盐-硫铝酸盐水泥基钻孔铸壁材料研究”（编号：16ZA0099）；地质灾害防治与地质环境保护国家重点实验室自由探索课题“硅酸盐-硫铝酸盐水泥水化协同效应与钻孔铸壁技术研究”（编号：SKLGP2015Z010） |
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| 中文摘要:漏浆是围堰防渗注浆过程中常遇到的工程现象，采取合理有效的方法解决漏浆问题对注浆效果具有重要的工程意义。针对引黄工程某围堰防渗注浆过程中的大量漏浆问题，对现场工程情况及漏浆原因进行了分析，提出采用水泥-水玻璃双液注浆的解决方案。在分析水泥-水玻璃浆液凝结硬化机理基础上，主要从注浆材料、注浆方法、注浆压力、注浆结束条件及封孔等方面对其注浆技术的现场应用情况进行了分析。检查孔压水试验表明，通过水泥-水玻璃注浆处理后，漏浆地层透水率大幅减小，满足工程设计要求，达到漏浆封堵效果。 |
| 中文关键词:围堰防渗注浆 漏浆 水泥-水玻璃 压水试验 |
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| Application of Cement-Sodium Silicate Grouting in Slurry Leakage Processing of Cofferdam Seepage Control |
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| Abstract:Slurry leakage is one of an engineering phenomenon during cofferdam seepage grouting process. It is important to take reasonable and effective way to solve problems related to slurry leakage in cofferdam seepage grouting project. With regard to a large number of slurry leakage cases in a cofferdam seepage grouting process during the Central Yellow River Diversion Project, field engineering conditions and reasons for the slurry leakage were analyzed, and proposal on adopting cement-sodium silicate double solution grouting technology was put forward to solve the problem. On the basis of analyzing coagulation hardening mechanism of cement-sodium silicate slurry, field application of cement-sodium silicate technology was analyzed, referring to grouting material, grouting method, grouting pressure, grouting end condition and hole sealing. Pressurized water experiment of inspection hole has shown that water permeability of lost circulation formation is much lower after cement-sodium silicate grouting treatment than before. It meets the design requirements by achieving the effect of blocking slurry leakage. |
| keywords:cofferdam seepage grouting slurry leakage cement-sodium silicate pressurized water experiment |
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