强震区千枚岩隧道塌方预报、成因机制及关键治理技术研究  

Collapse Prediction,Genetic Mechanism and Key Treatment Measures for Phyllite Tunnel in Meizoseismal Area

作　　者：徐飞[1] 张伟 石少帅[1] 邱天龙 王本硕 张云鹏[1] 胡杰[1] Xu Fei Zhang Wei Shi Shaoshuai Qiu Tianlong Wang Benshuo Zhang Yunpeng Hu Jie(Shandong University, Jinan Shandong 250061, China China Railway 14^th Bureau Chengdu-Lanzhou Railway Engineering Headquarters, Aba Sichuan 624000, China)

机构地区：[1]山东大学,山东济南250061 [2]中铁十四局成兰铁路工程指挥部,四川阿坝州624000

出　　处：《铁道建筑技术》2016年第12期28-32,共5页Railway Construction Technology

基　　金：国家重点基础研究发展计划(973)项目(2013CB036000);国家自然科学基金项目(51479106);山东省自然科学基金资助项目(ZR2014EEQ002)

摘　　要：本文依托穿越5·12汶川强震区在建王登隧道塌方实例,系统分析了该区域隧道塌方灾害的基本特征,结合地震波反射法(TSP)超前预报技术,系统介绍了针对强震区千枚岩隧道塌方的预报、成因机制以及治理技术;塌方段治理后初支与围岩接触压力及围岩变形长期监测数据表明所述塌方治理方案是合理有效的,为同类地质条件隧道塌方灾害治理提供一定参考意义。In this paper, the tunnel collapse accident occurred in under building Wangdeng tunnel was taken as an example. Wangdeng tunnel was located in a meizoseismal area due to the 5·12 Wenchuan earthquake. The basic characteristics of tunnel collapse were analysed. Combined with the tunnel seismic prediction technology （TSP） , the paper systematically introduced the collapse prediction, genetic mechanism and treatment measures for phyllite tunnel in meizoseismal area. Based on the long time monitoring data of surrounding rock deformation and pressure between surrounding rock and primary support, the tunnel collapse treatment scheme was checked to be highly efficient and rational. The engineering experience could be taken as a significant reference for other similar projects.

关 键 词：铁路隧道 千枚岩 强震区 塌方 成因机制 施工方案 

分 类 号：U456.33[建筑科学—桥梁与隧道工程]