| 高风险岩溶隧道注浆材料水下抗分散性试验研究 |
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| 引用本文： | 刘昌国,;杜韦,;王双喜,;胡婷,;胡国祥.高风险岩溶隧道注浆材料水下抗分散性试验研究[J].水运科技信息,2014(3):146-148. |
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| 作者姓名： | 刘昌国 ;杜韦 ;王双喜 ;胡婷 ;胡国祥 |
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| 作者单位： | [1]湖北省保康至宜昌高速公路建设指挥部,宜昌444200; [2]武汉工程大学交通研究中心,武汉430073 |
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| 基金项目： | 湖北省交通科技项目（鄂交科教E20121857号）资助 |
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| 摘 要： | 在高风险岩溶隧道注浆材料的研制中，为了确定水下抗分散剂的种类、掺量，初选了2种水下抗分散剂 P，H，通过直观观察优选出一种 H，再通过测试不同掺量下试件的强度，确定掺量大小。最后通过 pH 值测试、水陆强度比试验评价水下抗分散性能。结果表明，掺入适量的 H 后，浆液水下抗分散性能良好，有利于封堵高压、富水岩溶区的突水、涌泥。
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| 关 键 词： | 岩溶隧道 注浆材料 水下抗分散剂 掺量 性能评价 |
Experimental Study on Underwater Anti-washout of Grouting Material for High Risk Karst Tunnel |
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| Institution: | Liu Changguo, Du Wei, Wang Shuangxi, Hu Ting, Hu Guoxiang (1. Baokang to Yichang Freeway Construction Headquarters in Hubei Province, Yichang 444200, China; 2. Transportation Research Center, Wuhan Institute of Technology, Wuhan 430074, China) |
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| Abstract: | In order to determine the types and volumes of underwater anti-washout admixture in devel-oping grouting material for high risk karst tunnel,two kinds of underwater anti-washout admixtures P and H were primarily chosen.Anti-washout admixture H was selected with visual observation,fol-lowed by the test of specimen strength under different volume to determine the volume size,and then the experiments of pH value and strength ratio tests with and without water to evaluate the underwa-ter anti-washout performance.The result shows that the grouting material has a good underwater an-ti-washout performance with moderate H,which benefits for plugging water inrush and pouring mud in high water pressure and water-enriched region. |
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| Keywords: | karst tunnel grouting material underwater anti-washout admixture volume perform-ance evaluation |
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