| 盾构过富水砂层对地表建筑物影响的研究 |
| |
| 引用本文： | 刘国楠,张远荣,肖文海.盾构过富水砂层对地表建筑物影响的研究[J].西北地震学报,2011,33(3):243-248. |
| |
| 作者姓名： | 刘国楠 张远荣 肖文海 |
| |
| 作者单位： | 中国铁道科学研究院深圳研究设计院; |
| |
| 基金项目： | 中国铁道科学研究院深圳研究设计院自助科研项目(10-SZ-10-001-ZF) |
| |
| 摘 要： | 结合深圳地铁2号线盾构过富水砂层施工实际,考虑流-固藕合水土本构关系,用FLAC3D软件建立了盾构施工数值分析模型。计算结果与工程实测数据对比验证了数值模型的合理性。进一步研究了盾构过富水砂层对地表不同位置建筑的影响:建筑物基础在隧道正上方时产生沉降最大且较均匀,水平位移最小;盾构机开挖下穿时建筑物差异沉降最大,建筑物倾向盾构开挖方向;建筑物基础横向上离隧道中心一倍隧道埋深时,建筑物水平移动最大,易受剪切破坏,倾向垂直盾构开挖方向,周边地表沉降差最大;建筑物离隧道中心横向距离超过两倍隧道埋深时,盾构开挖对建筑物基础沉降的影响较小,建筑物沉降与其周边地表沉降较均匀。
|
| 关 键 词： | 盾构 富水砂层 FLAC3D 建筑物影响 沉降 |
Influence of Shield Tunneling on the Buildings above in Saturated Sandy Stratum Area |
| |
| LIU?Guo-nan,ZHANG?Yuan-rong and XIAO?Wen-hai.Influence of Shield Tunneling on the Buildings above in Saturated Sandy Stratum Area[J].Northwestern Seismological Journal,2011,33(3):243-248. |
| |
| Authors: | LIU?Guo-nan ZHANG?Yuan-rong and XIAO?Wen-hai |
| |
| Institution: | LIU Guo-nan,ZHANG Yuan-rong,XIAO Wen-hai(Shenzhen Research and Design Insititute,China Academy of Railway Sciences,Guangdong Shenzhen 518034,China) |
| |
| Abstract: | A numerical model of shield tunneling construction in the case of line 2 of Shenzhen metro with saturated sandy stratum condition is established using FLAC3D program,considering the fluid-solid interaction constitutive relation.By comparison between the calculated subsidences caused by shield tunneling at saturated sandy stratum and observed results,it is comfirmed that the numerical model is rational.A group of analyses for influence of the shield tunneling on the buildings above are taken.The result shows... |
| |
| Keywords: | Shield Saturated sandy stratum FLAC3D Influence on building Settlement |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《西北地震学报》浏览原始摘要信息 |
| 点击此处可从《西北地震学报》下载免费的PDF全文 |
|
