| 高陡倾岩溶裂隙构造中隧道突水突泥机理及防控方法研究 |
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| 引用本文： | 熊华涛.高陡倾岩溶裂隙构造中隧道突水突泥机理及防控方法研究[J].路基工程,2021,0(3):229-234. |
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| 作者姓名： | 熊华涛 |
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| 作者单位： | 中铁十六局集团铁运工程有限公司，河北高碑店 074000 |
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| 摘 要： | 依托重庆石柱至黔江高速公路七曜山隧道工程，结合施工过程中的突水突泥灾害统计，阐述高陡倾岩溶裂隙构造中隧道突水突泥的发生机理及有效防控措施，对其致灾构造形态、突泥物源、灾变机制、防控措施等内容进行研究。研究结果表明:高陡倾充填型岩溶裂隙是一种致灾性极强的突水突泥致灾构造；七曜山隧道突水突泥的主因是动态河水流入落水洞，通过水体运移网络流向掌子面并形成高水压；通过对七曜山隧道裂隙封堵、排水泄压、泄水洞等措施来处治涌水突泥灾害，新建泄水洞有效保证了隧道安全。
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| 关 键 词： | 公路隧道 突水突泥 试验研究 高陡倾裂隙构造 水压 突水速率 泄水洞 |
| 收稿时间： | 2020-11-15 |
Study on Water and Mud Inrush Mechanism and Prevention and Control Method of Tunnel in Steep Karst Fissure Structures |
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| Abstract: | Taking Qiyueshan tunnel in the highway between Chongqing Shizhu to Qianjiang as a research case, combined with the disaster statistics of water and mud inrush during the construction, it expounds the mechanism of occurence of water and mud inrushing disaster of the tunnel in steep Karst fissure structures and the effective prevention and control measures. The disaster-causing structural morphology, mud source, catastrophe mechanism, prevention and control measures have been researched. The results of the research show that steeply inclined and filling type of karst fissure structure is a highly hazard water-mud inrushing disaster structure. The major cause of Qiyueshan tunnel water and mud inrushing is that dynamic river flows into the sinkhole, flowing through face by water transport network resulting in high water pressure. Fissure sealing, drainage pressure relief, discharge tunnel and other measures have been adopted to treat the water and mud inrushing in Qiyaoshan Tunnel, and the newly-built discharge tunnel effectively ensures the safety of the Qiyaoshan Tunnel. |
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