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| 土质隧洞围岩稳定性分析与设计计算方法探讨 | |
| 引用本文： | 郑颖人,邱陈瑜,宋雅坤,张红,王谦源,袁宴仁.土质隧洞围岩稳定性分析与设计计算方法探讨[J].后勤工程学院学报,2009,25(3):1-9. |
| 作者姓名： | 郑颖人 邱陈瑜 宋雅坤 张红 王谦源 袁宴仁 |
| 作者单位： | 1. 后勤工程学院,军事建筑工程系,重庆,400041 2. 青岛理工大学,理学院,青岛,266033 3. 中国建筑第五工程局,长沙,410004 |
| 摘 要： | 论述了以洞周位移量与围岩塑性区大小作为围岩稳定性经验判据的不足，依靠模型试验与力学计算，分析了隧洞破坏机理与形式。由此提出将基于有限元强度折减法求出的围岩安全系数作为稳定分析判据，这种判据有严格的力学依据，有统一的标准，而且不受其他因素的影响。研究了隧洞围岩安全系数（剪切安全系数、拉裂安全系数）与衬砌安全系数的算法以及隧洞设计计算方法。最后以黄土洞室为例，给出了土体隧洞设计计算新方法，并对土体隧洞今后的研究方向提出了几点展望。 |
| 关 键 词： | 隧洞围岩稳定性 有限元强度折减法 剪切安全系数 拉裂安全系数 隧洞设计方法 |
Exploration of Stability Analysis and Design Calculation Methods of Surrounding Rocks in Soil Tunnel |
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| ZHENG Ying-ren,QIU Chen-yu,SONG Ya-kun,ZHANG Hong,WANG Qian-yuan,YUAN Yan-ren.Exploration of Stability Analysis and Design Calculation Methods of Surrounding Rocks in Soil Tunnel[J].Journal of Logistical Engineering University,2009,25(3):1-9. | |
| Authors: | ZHENG Ying-ren QIU Chen-yu SONG Ya-kun ZHANG Hong WANG Qian-yuan YUAN Yan-ren |
| Institution: | 1.Dept.of Architecture & Civil Engineering;LEU;Chongqing 400041;China;2.College of Science;Qingdao Technological University;Qingdao 266033;3.China Construction Fifth Engineering Division;Changsha 410004;China |
| Abstract: | The paper proves the deficiency of judging the stability of tunnel by the empirical criterion of displacements of tunnel perimeter or sizes of plastic zones of surrounding rocks.Destruction mechanisms and forms of tunnel are analyzed based on the model tests and the mechanical calculations. The paper puts forward taking safety factors calculated by the strength reduction finite element method as the stability criterion.This criterion is based on the strict mechanic foundation,has a universal standard and ca... |
| Keywords: | stability of rock surrounding in tunnel strength reduction FEM shear safety factor tensile safety factor design method of tunnel |
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