Study on rock separation telemeter of hard roof in goaf |
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| Authors: | ZHAO Tong-bin TAN Yun-liang MA Hong-ling |
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| Institution: | 1.Key Laboratory of Mine Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao 266510, China;
2.College of Resources and Environment Engineering, Shandong University of Science and Technology, Qingdao 266510, China |
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| Abstract: | Based on flexure theory and inharmonic relationship of deformation of rocks, the criterion of hard roof separation was built. And the influence of homologous parameters on roof deformation was given. Using the technology of telemeter measurement to monitor rock separator in goaf, the conclusion can indicate: the system of telemeter can monitor effectively the separation information of roof rock. By anglicizing the curve monitored, the position of roof where separation happens can be confirmed; and the thickness of cave of roof would be predicted. Using the information monitored by the system of telemeter before roof cave, some prevention can be practiced to protect the safety mining under hard roof. |
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| Keywords: | hard roof flexural deformation separation telemeter inharmonic deformation |
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