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| RESEARCH ON SURROUNDING ROCK FISSURE TESTING TECHNOLOGY IN GEOMECHANICAL MODEL TEST AND ITS APPLICATION |
| ZHANG Chong1,2,XUE Junhua3,ZHANG Xiangyang4,KONG Fuli4,XU Jingmao4 |
(1. College of Electronic and Information Engineering,Henan University of Science and Technology,Luoyang,Henan 471003,China;2. State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China;
3. State Key Laboratory of Deep Coal Mining and Environment Protection,Huainan Mining Group,Huainan,Anhui 232001,China;4. The Third Research Institute of the Corps of Engineering,General Staff of PLA,Luoyang,Henan 471023,China) |
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Abstract Based on the technical requirements of surrounding rock fissure testing in geomechanical model test,a fissure testing scheme with fracture wire is put forward;and the fracture wire materials are sifted. Through contrast test,graphite wire is chosen finally. This material can basically crack synchronously with model medium and satisfy the test requirements. The graphite wire is applied to the Huainan coal mine;and the occurrence and development processes of surrounding rock fissures are obtained. This technique can provide reference for fissure testing in similar experiments.
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Received: 16 May 2013
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