| 考虑岩体中间主应力效应的竖井稳定性分析 |
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| 引用本文： | 徐栓强,侯卫. 考虑岩体中间主应力效应的竖井稳定性分析[J]. 地下空间与工程学报, 2007, 3(6): 1168-1170,1181 |
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| 作者姓名： | 徐栓强 侯卫 |
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| 作者单位： | 西安工业大学院建筑工程系,西安,710032;西安工业大学院建筑工程系,西安,710032 |
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| 摘 要： | 采用统一强度理论对岩体中圆形竖井的稳定性进行了研究.导出了竖井稳定性的判据和极限深度的算式,利用所得的公式探讨了岩体的拉压强度差效应和中间主应力效应对竖井极限深度的影响.结果表明,当考虑岩体的拉压强度差效应和中间主应力效应时,竖井的极限深度将明显提高.
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| 关 键 词： | 岩石力学 稳定分析 极限深度 竖井 统一强度理论 |
| 文章编号： | 1673-0836（2007）06-1168-03 |
| 收稿时间： | 2007-08-10 |
| 修稿时间： | 2007-08-10 |
Analysis on Stability of a Shaft with Considering the Effect of Intermediate Principal Stress of Rock Mass |
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| XU Shuan-qiang,HOU Wei. Analysis on Stability of a Shaft with Considering the Effect of Intermediate Principal Stress of Rock Mass[J]. Chinese Journal of Underground Space and Engineering, 2007, 3(6): 1168-1170,1181 |
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| Authors: | XU Shuan-qiang HOU Wei |
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| Abstract: | On the basis of the unified strength theory,a stability analysis of a circular shaft was carried out.The stability criterion and the formula for the limit depth of the shaft were obtained.The influences of the strength-differential effect and the intermediate principal stress effect on the limit depth of the shaft were investigated by the present formula.The results show that the limit depth of shaft will increase when the strength-differential effect and the intermediate principal stress effect are considered. |
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| Keywords: | rock mechanics stability analysis limit shaft depth the unified strength theory |
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