地铁隧道双线暗挖斜穿地裂缝地表变形规律及控制技术研究OA北大核心
Study on Laws of Ground Surface Deformation Induced by Double Track Bored Metro Tunnel Obliquely Crossing Ground Fissure and the Control Technology
为分析暗挖黄土地铁隧道双线斜穿地裂缝时地表变形规律，以西安地铁3号线为依托工程，通过理论分析、FLAC3D模拟及实测，对地裂缝处地表纵向、横向变形规律进行系统研究。主要结论：地裂缝与掌子面关键体相交时，该阶段为控制掌子面稳定性及地层沉降的关键；穿越过程地裂缝处上、下盘将产生沉降错台及水平张拉，二者发展趋势较为接近，错台的发展及恢复分别集中在进度-1.25D~0和0~1.75D；受先行隧道扰动影响，后行隧道于地裂缝处将产生更大的沉降差和最终沉降；地…查看全部>>
In order to understand the laws of surface deformation of shallow-buried undercut metro tunnel crossing through ground fissure, this paper uses theoretical analysis, FLAC3D numerical simulation and field observation based on the project of Xi’an NO. 3 metro line to conduct a systematic research on the laws of the vertical and horizontal deformation of the surface near the ground fissure. Research concludes that where the ground fissure intersects with the ke…查看全部>>
张杨洋;贾清江;任建喜
西安科技大学建筑与土木工程学院，西安 710054中铁航空港集团第一工程有限公司，陕西渭南 714000西安科技大学建筑与土木工程学院，西安 710054
交通工程
地铁隧道暗挖施工地裂缝地表变形数值模拟控制技术
Metro tunnelSubsurface excavationGround fissureSurface deformationNumerical simulationControl technology
《铁道标准设计》 2017 (1)
76-80,5
评论