岩溶风险隧道监理工作控制要点分析

可溶岩地区隧道施工存在突泥突水、围岩变形、塌方、沉陷等诸多风险因素。通过贵广铁路岩溶风险隧道施工现场监理工作实践,介绍了在可溶岩地区铁路隧道施工监理工作中,应重点注意的综合超前地质预报、风险评估、专项施工方案及专项应急救援预案等关键事项;对岩溶风险隧道开挖、初期支护、施工防排水、衬砌、围岩监控量测等各工序的监理工作控制要点进行了详细阐述;同时介绍了在实施现场监理的过程中,为了保证岩溶风险隧道施工安全及质量,监理单位应该采取的监控手段、监理工作方法及措施。

Control Points in Risky Karst Tunnel Supervision

Risks like sudden mud water inrush, the deformation of surrounding rock, landslides, subsidence, and many other risk factors are often found in tunnels in soluble rocks. Through the supervision of risky tunnel construction in soluble rocks on Guiyan-Guangzhou railway, the paper introduces the key points in risky tunnel construction in soluble rock area including the comprehensive forecasting of geology, risk evaluation, specialized construction plan and specialized emergency rescue etc. supervision control points of each process like risk of karst tunnel excavation, primary support, construction wa- terproof and drainage, lining and surrounding rock monitoring are explained in detail in this paper. At the same time, in the implementation of site supervision, in order to ensure the quality of karst risk tunnel construction safety and quality, monitor means supervision units should take, supervision methods and measures are introduced.