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| Experimental Study of Deformation of Surrounding Rock with Infrared Radiation | |
| 作者姓名： | ZHANG Yong-jun AN Li-qian REN Run-hou FAN Shi-min MA Nian-jie LI Jian-hui JI Yuan-ming |
| 作者单位： | [1]School of Mechanics, Architecture and Civil Engineering, China University of Mining ＆ Technology, Beifing 100083, China [2]Lu＇an Environmental Energy Dev. Co. Ltd., Changzhi, Shanxi 046024, China [3]School of Safety and Resource Engineering, China University of Mining ＆ Technology, Beifing 100083, China |
| 基金项目： | Projects 50374069 supported by National Natural Science Foundation of China and 2002CB412701 supported by 973 of China |
| 摘 要： | According to the practical conditions of coal roadway in Changcun Coal Mine of Lu＇an Mining Group, the deformation of rock surrounding roadway was experimentally studied by means of thermal infrared （TIP,） imaging system in the process of confined compressions. It is found that the model surface TIR temperature （TIRT） changes with the increase of load. Furthermore, TIRT changes non-synchronously in different ranges such as the roof, floor, wall, corners and bolted ranges. The TIRT is higher in the location of stress concentration and bolted ranges than that in the location of stress relaxation and broken ranges. The interaction ranges of bolt and rock are determined preliminarily according to the corresponding relationship of TIRT fields and the strain fields of the surrounding rock. The new method of TIR image processing has been proved to be effective for the study of bolt support and observation of roadway stability under mine pressure. |
| 关 键 词： | 围岩 煤矿 巷道 物理模型 支护方法 |
| 收稿时间： | 2005-06-01 |
| 修稿时间： | 2005-10-28 |
Experimental Study of Deformation of Surrounding Rock with Infrared Radiation |
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| ZHANG Yong-jun AN Li-qian REN Run-hou FAN Shi-min MA Nian-jie LI Jian-hui JI Yuan-ming.Experimental Study of Deformation of Surrounding Rock with Infrared Radiation[J].Journal of China University of Mining and Technology,2005,15(4):329-333. | |
| Authors: | ZHANG Yong-jun AN Li-qian REN Run-hou FAN Shi-min MA Nian-jie LI Jian-hui JI Yuan-ming |
| Affiliation: | 1. School of Mechanics,Architecture and Civil Engineering,China University of Mining & Technology,Beijing 100083,China 2. School of Mechanics,Architecture and Civil Engineering,China University of Mining & Technology,Beijing 100083,China;Lu'an Environmental Energy Dev. Co. Ltd.,Changzhi,Shanxi 046024,China 3. School of Safety and Resource Engineering, China University of Mining & Technology, Beijing 100083, China |
| Abstract: | According to the practical conditions of coal roadway in Changcun Coal Mine of Lu'an Mining Group, the deformation of rock surrounding roadway was experimentally studied by means of thermal infrared (TIR) imaging system in the process of con- fined compressions. It is found that the model surface TIR temperature (TIRT) changes with the increase of load. Furthermore, TIRT changes non-synchronously in different ranges such as the roof, floor, wall, corners and bolted ranges. The TIRT is higher in the location of stress concentration and bolted ranges than that in the location of stress relaxation and broken ranges. The interaction ranges of bolt and rock are determined preliminarily according to the corresponding relationship of TIRT fields and the strain fields of the surrounding rock. The new method of TIR image processing has been proved to be effective for the study of bolt support and observation of roadway stability under mine pressure. |
| Keywords: | bolt support surrounding rock infrared radiation physical model test |
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