明洞结构处理滑坡地段灾害分析  

Analysis of landslide hazard in open cut tunnel structure

作　　者：覃健[1] 黄杰[1] Qin Jian;Huang Jie(Sichuan Focational and Technical College of Communications,Chengdu 611130,China)

机构地区：[1]四川交通职业技术学院,四川成都611130

出　　处：《山西建筑》2018年第32期87-88,共2页Shanxi Architecture

基　　金：四川交通职业技术学院青年课题(2014-580-10)

摘　　要：川黔线某隧道出口明洞外侧高边坡发生局部溜坍,根据现场勘查,隧顶山体存在裂缝、错台现象,存在产生滑坡的趋势。在滑坡地段增建明洞工程,减缓滑坡体对隧道出口段铁路运营的安全影响;针对增加的明洞结构,采用现场埋设测点,远程数据采集的测试方式,实时掌握结构受力情况,了解滑坡体对明洞结构受力的影响,掌握结构长期受力状况,并通过测试结果分析,可为异常特殊状况提供可靠及时的测试技术资料,供决策参考。Local slope failure occurred on the high lateral slope outside the open-cut tunnel of Chuanqian railway a tunnel exit. According to the data of the site inspection,cracks and dislocation occurred in the top rock of the tunnel,and there is a trend of landslide. An additional open-cut tunnel was built in the landslide area to mitigate the safety impact of landslide on railway operation of tunnel exit section. In view of the added open-cut tunnel,the test method of field buried detection point and remote data acquisition is adopted to grasp the stress of the structure in real time and to understand the effect of sliding body on the stress of open-cut tunnel and to master the long-term stress state of the structure. These can provide reliable and timely testing technical data for special abnormal conditions and provide reference for decision making.

关 键 词：明洞 滑坡 应力测试 

分 类 号：P642.22[天文地球—工程地质学]