层状黄土区域地铁隧道变形模拟分析  

On deformation simulation analysis of subway tunnel in loess area

作　　者：罗从双[1] 朱朋要 吴迪[1] 廉常青 曹媛媛[1] 

机构地区：[1]河南城建学院,平顶山河南467036

出　　处：《河南城建学院学报》2014年第5期6-8,共3页Journal of Henan University of Urban Construction

基　　金：河南省教育厅科学技术研究重点项目(12B580001);河南城建学院2014青年骨干教师培训项目;河南城建学院2014大学生科技创新项目

摘　　要：为解决层状黄土地区地铁隧道的安全施工,采用现场量测与Rocscience软件模拟分析相结合的方法,研究了全断面开挖过程中地铁隧道围岩的稳定性问题。研究结果表明,采用软件分析的结果与现场量测的结果基本一致,在隧道中心线两侧均出现了显著的沉降现象,由于地铁下腹地层为粉砂,所以开挖的隧道要及时闭合,并且要布置仰拱或是管片整体支护。In order to ensure the safety construction in the subway tunnel of the loess area, the field measure-ment and Rocscience software simulation analysis method were used to study the rock stability in the excavation process of subway tunnel. The results show that the software analysis and field measurement results are basi-cally identical. The subsidence phenomenon was significant on both sides of the center line of the tunnel. As the tunnel bottom is silt, the tunnel excavation should timely be closured, and the inverted arch or segment o-verall support should be arranged.

关 键 词：黄土 地铁隧道 稳定性 Rocscience 数值模拟 

分 类 号：U456.3[建筑科学—桥梁与隧道工程]