铁路隧道二衬空响、不密实与空洞的成因及其处理技术研究

Research on Causes of Empty Response, Lacuna and Cavity for Secondary Liner of Railway Tunnel and Its Treatment Technology

采用先进的螺杆式灌浆泵,结合无收缩水泥基灌浆材料、超细水泥和耐潮湿型环氧结构胶,对织纳铁路营盘山隧道二衬空响、不密实与空洞等缺陷进行了综合整治,满足设计上对隧道的防水要求,确保了铁路隧道的顺利交验。

With advanced screw grouting pump, cement-based grouting material which is shrinkage-free, superfine cement and damp-proofing epoxy structural adhesive were adopted for comprehensive treatment of empty response, lacuna and cavity for secondary liner of Yingpanshan Tunnel, Zhina Railway. These treatments meet the waterproofing requirement on design and ensured the traffic in the railway tunnel opened smoothly.