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| EFFECTS OF INCOMPATIBLE DEFORMATION ON FAILURE MODE AND STRESS FIELD OF SURROUNDING ROCK MASS |
| QIAN Qihu1，2，3，ZHOU Xiaoping2，4，5 |
(1. Engineering Institute of National Defense Engineering，PLA University of Science and Technology，Nanjing，Jiangsu 210007，China；2. College of Civil Engineering，Chongqing University，Chongqing 400045，China；3. State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact，PLA University of Science and Technology，Nanjing，Jiangsu 210007，China；
4. Key Laboratory of New Technology for Construction of Cities in Mountain Area of Ministry of Education，Chongqing University，Chongqing 400045，China；5. State Key Laboratory of Coal Mine Disaster Dynamics and Control，Chongqing University，Chongqing 400044，China) |
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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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Received: 15 November 2012
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2013, Vol. 32 
