穿越活断层地铁区间隧道结构设计  

Structure Design of Metro Running Tunnel Through Active Fault

作　　者：张海龙[1] 

机构地区：[1]中铁第一勘察设计院集团有限公司新疆分院,新疆乌鲁木齐830011

出　　处：《铁道建筑》2016年第11期77-79,共3页Railway Engineering

摘　　要：乌鲁木齐轨道交通2号线一区间隧道穿越活断层,在国内地铁工程中尚属首例。通过利用EERA软件对地层位移和土层剪力的计算,考虑区间结构与地层的相互作用,采用该区域内的地震动参数,研究在立体交叉、同期施工且需要考虑活断层影响的地铁区间设计。计算结果表明,区间隧道在穿越活断层时,结构部分区域需进行强度配筋计算。A running tunnel of Urumqi rail transit line No.2 passes through the active fault,which is the first case in the domestic metro project.The stratum displacement and soil shear were calculated by using EERA software and the metro interval design was studied in the condition of grade separation,contemporaneous construction and the influence of active fault by considering the interaction between interval structure and stratum and adopting the seismic dynamic parameters within this region.The calculation results show that strength reinforcement calculation should be implemented in partial structure area when the interval is passing through the active fault.

关 键 词：明挖法 大跨度 EERA软件 活断层 反应位移 抗震设计 

分 类 号：U452.25[建筑科学—桥梁与隧道工程]