铁路隧道穿越的复杂管道型溶洞处治技术  

Treatment Technologies of Karst Caves with Complex Pipelines Crossed by Railway Tunnel

作　　者：王秋 WANG Qiu(Chongqing Survey,Design and Research Institute Co.Ltd.of China Railway Eryuan Engineering Group Co.Ltd.,Chongqing 400023,China)

机构地区：[1]中铁二院重庆勘察设计研究院有限责任公司,重庆400023

出　　处：《铁道建筑》2022年第11期107-111,共5页Railway Engineering

摘　　要：针对重庆—贵阳铁路宗家山隧道施工揭示的管道型溶洞极其复杂、季节性涌水风险高、整体稳定性较差且对隧道危害大等特点,通过理论计算、工程类比分析进行了处治方案比选。采用设置集水廊道与泄水洞、设置局部排水联络坑道和排水钻孔、溶洞内封堵疏排、局部衬砌及支护加强等综合处治措施,确保了隧道结构免受岩溶水危害。形成的隧道复杂管道型溶洞综合处治技术可供类似工程借鉴。In view of the characteristics of the Karst caves with complex pipelines revealed in Zongjiashan tunnel constrnction,such as extremely complex,high risk of seasonal water gushing,poor overall stability and great harm to the tunnel,the scheme selection was carried out through theoretical calculation and engineering analogy analysis.Comprehensive treatment measures,such as setting catchment gallery and discharge tunnels,setting local drainage contact tunnels and drainage drill holes,sealing and drainage in Karst caves,local lining and strengthening support,were adopted to ensure the tunnel structure from the danger of karst water.The practice shows that the series of karst caves treatment measures are safe and reliable,which can provide references for similar projects.

关 键 词：铁路隧道 管道型溶洞 数值模拟 方案比选 集水廊道 强效排水 综合处治技术 

分 类 号：U455.49[建筑科学—桥梁与隧道工程]