铁路隧道不良地质突水突泥治理技术与工程应用

Control Technology for Water and Mud Bursting of Railway Tunnel under Unfavorable Geological Conditions and Its Engineering Application

研究目的:突水突泥是隧道施工中常见的地质灾害之一。在突水突泥治理过程中,采取专业化管理、专业队伍施工对保证治理效果尤其重要。突水突泥后,贸然清淤极易发生二次灾害,突水突泥规模更大;同时,机械化配套水平、突水突泥治理方案的可靠性对治理效果、治理进度影响都会产生很大的影响。通过对专业化管理、安全清淤与封堵、机械化配套、突水突泥治理方案设计与实施等方面进行研究,形成不良地质突水突泥安全、快速治理技术,以应用于实际工程中。研究结论:(1)注浆法是隧道突水突泥治理的有效手段,处理时应按"注浆加固、排水减压"的原则;(2)采取"注浆改良+加筋锚固+超前管棚"的综合处理方式,采用信息化注浆技术和专业化管理模式,从而达到安全、快速、经济的治理效果;(3)该研究成果可应用于隧道突水突泥灾害的治理。

Research purposes： The water and mud bursting is one of the common geological disasters in tunnel construction. In the control process of the water and mud bursting, the professionalization management and construction are crucial to the control effect. If the dredging is conducted hastily after the water and mud bursting, the secondary disasters are easy to happen, result in appearance of the bigger water and mud bursting. At the same time, the reliabilities of the mechanized level and the control plan for the water and mud bursting have a large impact on the treatment effect. Therefore, it is necessary to do the research on the professionalization management, safe dredging and blocking, mechanical matching, control plan for the water and mud bursting and its implement to form a set of the control technology used for the water and mud bursting. Research conclusions ： （ 1 ） Grouting is an effective method for control of the water and mud bursting of railway tunnel, and the principle of the ＂ grouting reinforcement along with drainage and dropping pressure＂ should be followed. （2） In order to obtain safe, efficient and economic control effects, a comprehensive control means of the grouting improvement, reinforced anchorage and large pipe roof construction should be adopted with informatization grouting technology and professionalization management. （3） This research results can be applied in control of the water and mud bursting disaster.