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在分析土家湾隧道软黄土介质坍方原因的基础上 ,阐述了该隧道软黄土介质坍方综合处治技术和相关的防排水措施、水泥～水玻璃双液注浆加固、围岩支护的技术参数取值及其施工工艺。监控结果表明 :处治后塌方段周边相对位移小于 0 .2 % ,整体已处于稳定状态 ,满足公路隧道施工技术规范要求 ,说明所采取的综合处治技术措施是有效的
Based on the analysis of the reason of medium collapse of soft loess in Tujiawan tunnel, the comprehensive treatment technology and relevant drainage and drainage measures for soft loess medium in tunnel are expounded. The technical parameters of surrounding rock support are given by cement-water glass double-liquid grouting reinforcement Value and its construction technology. The monitoring results show that the relative displacement around the landslide section after treatment is less than 0.2%, and the whole area is in a stable state, which meets the technical requirements of highway tunnel construction, indicating that the comprehensive treatment measures adopted are effective