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Grouting Treatment of Water and Mud Inrush in Fully Weathered Granite Tunnel: A Case Study
Geofluids ( IF 1.7 ) Pub Date : 2020-11-26 , DOI: 10.1155/2020/8838769
Jiandong Niu 1 , Yong Sun 1 , Bin Wang 1 , Keneng Zhang 2 , Youhan Huang 3 , Shiwu Huang 4 , Jiaqin Yu 5 , Liangliang Qiu 6
Affiliation  

When mountain tunnel passes through completely weathered granite strata, water and mud inrush is easy to occur, causing casualties and economic losses. Grouting is a common and effective treatment method for water and mud inrush disaster. The current existing researches focus on theoretical analysis, numerical simulation, and laboratory test, and the researches based on the field of engineering application are few. Based on the fully weathered granite tunnel of Junchang tunnel in Guangxi, this paper studies the grouting treatment of water and mud disaster in the fully weathered granite tunnel. This paper first introduces the geological and hydrological conditions of Junchang tunnel in order to understand the causes of water inrush and mud inrush. Then, the treatment method of full-section curtain grouting is introduced. During the grouting, the combination of exploration and injection is adopted. According to different hydrological conditions, different kinds of grouting materials are adopted. After grouting is completed, Transient Electromagnetic Methods, water inflow analysis, borehole investigation, and P-Q-T method are used to evaluate the grouting effect. According to the reaction of the detection results, the weak part of grouting can be supplemented to improve the grouting quality. The results show that the curtain grouting is effective for the treatment of water-mud inrush disaster in the fully weathered granite tunnel. This study provides a reference for the treatment of water and mud inrush in other similar tunnels.

中文翻译:

全风化花岗岩隧道突水突泥的注浆处理:案例研究

山地隧道穿过完全风化的花岗岩地层时,容易发生突水突泥,造成人员伤亡和经济损失。注浆是一种常见的、有效的突水突泥灾害处理方法。目前已有的研究多集中在理论分析、数值模拟和室内试验等方面,基于工程应用领域的研究较少。以广西军昌隧道全风化花岗岩隧道为研究对象,研究了全风化花岗岩隧道水泥灾害的注浆处理。本文首先介绍了军昌隧道的地质水文条件,以了解突水突泥的成因。然后介绍了全断面幕帘灌浆的处理方法。在灌浆过程中,采用勘探与注入相结合的方式。根据不同的水文条件,采用不同种类的灌浆材料。注浆完成后,采用瞬态电磁法、涌水分析、钻孔调查、PQT法对注浆效果进行评价。可根据检测结果的反应,对灌浆薄弱环节进行补充,提高灌浆质量。结果表明,帷幕注浆对全风化花岗岩隧道突水突泥灾害的治理效果显着。该研究可为其他类似隧道突水突泥的处理提供参考。注浆完成后,采用瞬态电磁法、涌水分析、钻孔调查、PQT法对注浆效果进行评价。可根据检测结果的反应,对灌浆薄弱环节进行补充,提高灌浆质量。结果表明,帷幕注浆对全风化花岗岩隧道突水突泥灾害的治理效果显着。该研究可为其他类似隧道突水突泥的处理提供参考。注浆完成后,采用瞬态电磁法、涌水分析、钻孔调查、PQT法对注浆效果进行评价。可根据检测结果的反应,对灌浆薄弱环节进行补充,提高灌浆质量。结果表明,帷幕注浆对全风化花岗岩隧道突水突泥灾害的治理效果显着。该研究可为其他类似隧道突水突泥的处理提供参考。结果表明,帷幕注浆对全风化花岗岩隧道突水突泥灾害的治理效果显着。该研究可为其他类似隧道突水突泥的处理提供参考。结果表明,帷幕注浆对全风化花岗岩隧道突水突泥灾害的治理效果显着。该研究可为其他类似隧道突水突泥的处理提供参考。
更新日期:2020-11-26
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