| 龙滩水电站地下厂房主支洞交叉处稳定性分析 |
| |
| 引用本文： | 杨林德,邓涛,陈海军. 龙滩水电站地下厂房主支洞交叉处稳定性分析[J]. 地下空间与工程学报, 2005, 1(5): 679-684 |
| |
| 作者姓名： | 杨林德 邓涛 陈海军 |
| |
| 作者单位： | [1]同济大学地下建筑与工程系,上海200092 [2]兰州大学资源环境学院,兰州730000 |
| |
| 摘 要： | 根据龙滩水电站地下厂房巨型地下洞室群的布置情况,结合洞室围岩为顺层断层和节理发育的高陡倾角层状岩体的地质特点,建立了三维有限元计算模型,并针对主支洞交叉处岩体的稳定性分析进行了分步开挖下的弹塑性数值模拟.计算结果表明：主支洞交叉处的岩体是应力松弛和塑性区的主要分布区域,该处岩体变形量大,具有明显的非对称性.现有的加固方案是有效、安全的,这一结果可供工程参考.
|
| 关 键 词： | 龙滩水电站 主支洞交叉口 岩体稳定性 三维弹塑性模拟 |
| 文章编号： | 1673-0836(2005)05-0679-06 |
| 修稿时间： | 2005-03-27 |
Stability of Rockmass between Main Tunnel and Sub-tunnels of Underground Power Houses at Longtan Hydro-power Station |
| |
| YANG Lin-de,DENG Tao. Stability of Rockmass between Main Tunnel and Sub-tunnels of Underground Power Houses at Longtan Hydro-power Station[J]. Chinese Journal of Underground Space and Engineering, 2005, 1(5): 679-684 |
| |
| Authors: | YANG Lin-de DENG Tao |
| |
| Affiliation: | YANG Lin-de~1,DENG Tao~ |
| |
| Abstract: | The Underground Power Houses of Longtan Hydro-power Station,as a large group Underground tunnels,are located in steep stratified rockmass with many faults and joints parallel to the bedding.Based on the factual geological conditions,a 3-D elasto-plastic numerical simulation is carried out for excavation and supporting.The calculation results show that the deformation of the rockmass between main tunnel and sub-tunnels,as the primary area with stress relaxation and plastic zones,is larger than that in any other areas and it is of obvious asymmetry.The reinforcement project is effective and safe.The obtained results are suitable to reference in engineering. |
| |
| Keywords: | Longtan Hydro-power Station intersection between main tunnel and sub-tunnels stability of rockmass 3-D elasto-plastic numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
