莲花村地铁车站初期支护失效模型研究  

Study on Initial Supporting Failure Model of Lianhuacun Subway Station

作　　者：刘文斌[1] LIU Wenbin

机构地区：[1]招商局重庆交通科研设计院有限公司,重庆400067

出　　处：《公路交通技术》2018年第1期101-106,共6页Technology of Highway and Transport

摘　　要：建筑物可靠度研究已历经了近一个世纪,取得了丰硕的研究成果。研究大多集中于土质均匀、围岩状态良好的地质环境,但对地下建筑工程的可靠度研究很少。随着地下空间的不断开发,地质条件也越发复杂,因此建立合适有效的结构失效模型,进而建立结构功能函数仍存在广阔的研究空间。基于重庆市轨道交通环线莲花村地铁车站,围岩为含软弱夹层的陡倾岩层施工中,对现场位移进行实时监测,并采用MIDAS/GTS有限元软件进行数值模拟,通过对比分析监控量测实测数据与数值模拟数据的变化规律,验证基于莲花村车站建立的含软弱夹层的陡倾岩层初期支护的失效模型。Over a century, study on reliability of buildings has made fruitful progress. However, littlestudy has been conducted to reliability of underground buildings, as most of them mainly focusedongeological environment with good soil quality and good surrounding rock status. With the continuousdevelopment of underground space, the geological conditions also become more and more complex.Therefore, there still remains broad space to set up structural function by establishing a suitable and effectivestructural failure model. Based on the characteristics of steep stratum with weak interlayer of surroundingrock of Lianhuacun substation in Chongqing, the on - site displacement was monitored in real time andnumerical simulation was carried out by using MIDAS / GTS finite element software. By comparing andanalyzing the monitoring data and the variation law of numerical simulation data, the failure model of initialsupport of steep stratum with weak interlayer of surrounding rock of Lianhuacun substation was verified.

关 键 词：隧道 软弱夹层围岩 可靠度 初期支护 不确定性 失效模型 

分 类 号：U231.3[交通运输工程—道路与铁道工程]