浅谈富水断层破碎带突水、突泥(块石)地质灾害段处治施工技术

Discussion on the treatment technology of water bursting and mud bursting(block) geological disaster in the water rich fault zone

三穗至黎平高速公路某某隧道DK72+633发生突水、突泥(块石)地质灾害,严格按照"管超前、严注浆、短进尺、弱爆破、强支护、早封闭、快衬砌、勤测量、速反馈"的施工原则,采用帷幕注浆+超前管棚+超前小导管注浆支护、结合注浆封堵、钢拱架+钢格栅加强支护在塌方体、高水压、大水量、岩体极度破碎的条件下,保证施工安全和质量,有效确保各项目标任务实现,对同类型隧道施工具有一定的借鉴意义。

The Sansui Liping Expressway Tunnel DK72＋633 has certain water and mud bursting （stone） geological disasters,in strict accordance with the principles of construction, strictly grouting pipe ahead, short footage, weak blasting, strong support, early closure, fast measurement, speed feedback, lining ground ＂, the curtain grouting ＋ lead pipe shed and advanced small pipe grouting support, grouting plugging, steel arch ＋ steel grid reinforced support in extreme crushing landslide, high water pressure, water and rock under the condition of ensuring the construction safety and quality, ensure to achieve the objectives and tasks, has certain reference significance for similar tunnel construction.