双液注浆技术在狮子山隧洞突水突泥处理中的应用研究

Study on Application of Double Liquid Grouting Technology in ShizishanTreatment of Water and Mud Inrush of Tunnels

滇中引水工程狮子山隧洞3号支洞主洞控制段上游侧多次发生突水突泥事件,其两次突水突泥的总量合计8200m 3。为保证安全、平稳地通过突涌段落,现场采用超前预灌浆双液注浆施工技术,在增大经济和社会效益的同时满足了突涌段安全开挖支护的施工要求。文章研究结果可为类似工程的突水突泥控制技术提供借鉴参考。

Water and mud inrushare generatedfor many times at the upstream side of the control section of the main tunnel of No.3 branch tunnel of ShizishanTunnel in Central Yunnan Water Diversion Project.The total amount of twice water and mud inrushis 8200m 3.The construction technology of pre-grouting and double-liquid grouting is adopted in the site in order to ensure the safe and stable passage through the inrush section,thereby not only increasing the economic and social benefits,but also meeting the construction requirements of safe excavation and support in the inrush section.The research results of the paper can provide reference for the control technology of water and mud inrush based on engineering and similar engineering.