摘要
强风化泥岩具有遇水容易崩解、塌陷,并且具有蠕变和长期强度降低的不利特性。长春地铁2号线工程西延线捷达大路至汽车公园区间隧道主要位于强风化泥岩中,靠近汽车公园站部分位于全风化泥岩中,本文采用时程分析法,建立盾构隧道结构和周围土层三维计算模型,模拟了地下结构在地震荷载下的动态特性,揭示了区间在地震作用下的位移时程反应及变形规律,本文结论对浅埋矿山平硐抗震性能分析也有一定的参考意义。
The strongly weathered mudstone is prone to collapse and collapse in the presence of water, and has the unfavorable characteristics of creep and long-term strength reduction. The tunnel from Jetta road to Automobile Park in Changchun Metro Line 2 project is mainly located in the strongly weathered mudstone, and the part near the car Park Station is located in the fully weathered mudstone. The time history analysis method is used in this paper. The three-dimensional calculation model of shield tunnel structure and surrounding soil layer is established,the dynamic characteristics of underground structure under earthquake load are simulated, and the displacement time-history response and deformation rule of interval under earthquake action are revealed. The conclusion of this paper can also be used as a reference for seismic performance analysis of shallow buried mine adit.
作者
张雷
韩玉珍
ZHANG Lei1,2,3 , HAN Yuzhen4,5(1. Beijing Urban Construction Group Co. , Ltd. , Beijing 100088, China 2. Beijing Key Laboratory of Deep Foundation Pit Geotechnical Engineering of Rail Transit. , Beijing 100101, China~ 3. Geotechnical Engineering Center, Beijing Urban Construction Group Co. ,Ltd. , Beijing 100101, China~ 4. Beijing Urban Construction Design ~ Development Group Co. , Ltd. , Beijing 100037, China~ 5. National Engineering Laboratory for Green b- Safe Construction Technology in Urban Rail Transit, Belling 100037, Chin)
出处
《中国矿业》
北大核心
2018年第4期147-152,共6页
China Mining Magazine
基金
国家重点研发计划"超高层建筑工程施工安全关键技术研究与示范项目"资助(编号:2016YFC0802000)
关键词
区间隧道
浅埋平硐
强风化泥岩
抗震分析
interval tunnel
shallow buried cavern
strongly weathered mudstone
seismic analysis
