| 富水地段浅埋公路隧道破坏面形状分析 |
| |
| 引用本文： | 马军秋,杨小礼.富水地段浅埋公路隧道破坏面形状分析[J].浙江交通职业技术学院学报,2010,11(1):9-12. |
| |
| 作者姓名： | 马军秋 杨小礼 |
| |
| 作者单位： | 中南大学,土木建筑学院,长沙,410075 |
| |
| 摘 要： | 基于流固耦合理论,对富水地段浅埋两车道和四车道公路隧道进行数值模拟,研究了围岩的松动土体力学行为,得出松动土体的剪切破裂角,并与理论解进行对比。结果表明:地下水渗流作用对破坏面形状有重大影响,考虑渗流时的破裂角比不考虑时小11.8%~19.7%;随着隧道所处地下水位升高,围岩破裂角逐渐减小,围岩松动剪切破坏范围增大;大跨度隧道破裂角受地下水渗流的影响比小跨度隧道显著。得出结论,计算富水地段浅埋公路隧道荷载时应该考虑地下水的渗流作用。
|
| 关 键 词： | 浅埋公路隧道 流固耦合理论 地下水渗流 破坏面 破裂角 |
Shape Analysis of Failure Face of Shallow Road Tunnel in Water-rich Site |
| |
| MA Jun-qiu,YANG Xiao-li.Shape Analysis of Failure Face of Shallow Road Tunnel in Water-rich Site[J].Journal of Zhejiang Vocational and Technical Institute of Transportation,2010,11(1):9-12. |
| |
| Authors: | MA Jun-qiu YANG Xiao-li |
| |
| Institution: | MA Jun-qiu,YANG Xiao-li (School of Civil , Architectural Engineering,Central South University,Changsha 410075,China) |
| |
| Abstract: | Numerical simulation based on the coupled fluid-solid theorem had been conducted for two lane and four lane road tunnel in water-rich site.The mechanical behavior of loose rock mass had been studied,and the shear break angle was obtained and compared with the analytical solution.The results showed that: the seepage of underground water has an important effect on the shape of the failure face,the break angles considering the influence of the seepage are smaller than the ones that not consider,from 11.8% to 1... |
| |
| Keywords: | shallow road tunnel coupled fluid-solid theorem seepage of underground water failure face break angle |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
