| 岩体非协调变形对围岩中的应力和破坏的影响 |
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| 引用本文： | 钱七虎,周小平. 岩体非协调变形对围岩中的应力和破坏的影响[J]. 岩石力学与工程学报, 2013, 32(4): 649-656 |
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| 作者姓名： | 钱七虎 周小平 |
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| 作者单位： | (1. 解放军理工大学 国防工程学院，江苏 南京 210007；2. 重庆大学 土木工程学院，重庆 400045；3. 解放军理工大学 爆炸冲击防灾减灾国家重点实验室，江苏 南京 210007；4. 重庆大学 山地城镇建设新技术教育部重点实验室，重庆 400045；5. 重庆大学 煤矿灾害动力学与控制国家重点实验室，重庆 400044) |
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| 摘 要： | 讨论研究岩体非协调变形的重要性，提出岩石非协调变形的物理和数学含义，介绍研究岩体非协调变形的技术思路，阐述岩体非协调变形和协调变形的基本不同点。通过含微裂纹的岩体中开挖圆形洞室的计算实例，具体分析岩体非协调变形的研究对围岩应力和破坏的影响，确定非协调变形产生的自平衡封闭应力，研究微裂纹的密度和长度对自平衡封闭应力和岩体破坏的影响。
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| 关 键 词： | 岩石力学非协调变形微裂纹非欧模型自平衡封闭应力 |
| 收稿时间： | 2012-11-15 |
EFFECTS OF INCOMPATIBLE DEFORMATION ON FAILURE MODE AND STRESS FIELD OF SURROUNDING ROCK MASS |
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| QIAN Qihu,ZHOU Xiaoping. EFFECTS OF INCOMPATIBLE DEFORMATION ON FAILURE MODE AND STRESS FIELD OF SURROUNDING ROCK MASS[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(4): 649-656 |
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| Authors: | QIAN Qihu ZHOU Xiaoping |
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| Abstract: | The importance of the incompatible deformation of the deep rock masses is discussed. The mathematical and physical meanings of the incompatible deformation of the deep rock masses are proposed. The method to research the incompatible deformation of the deep rock masses is introduced. The difference between the incompatible and compatible deformation of the rock mass is elaborated. The calculation case of a circular tunnel in the rock masses containing microcracks is given based on the non-Euclidean model. The effects of the incompatible deformation on failure mode and the stress field of the surrounding rock mass is analyzed. The self-equilibrated stresses induced by the incompatible deformation are determined. The influences of the density and the length of microcracks on the self-equilibrated stresses and failure mode are investigated. |
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| Keywords: | rock mechanics incompatible deformation microcracks non-Euclidean model self-equilibrated stresses |
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