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| Study on development law of water conducting fissure zone in 2301 working face of Guotun Mine |
| Weng Hongzhou 1, Li Hongyou 1, Hou Weihua 1, Zhang Chongchong 1, Tao Guangzhe 2 |
1. Guotun Mine, Heze Coal and Electricity Corporation Ltd., Heze 274000, China; 2. School of Energy and Mining
Engineering, Shandong University of Science and Technology, Qingdao 266590, China |
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Abstract Studying the development law of water-conducting fissure zone is of great significance for clarifying the movement law of overburden rock and ensuring the safe and efficient production of working face. In this paper, the 2301 working face of Guotun Coal Mine was taken as the engineering background, and a research method combining theoretical calculation and numerical simulation were used to study the development law of the overburden fracture zone and the height range of the two zones. The results showed that when the advancing distance of the working face was less than 100 m, the expansion of the fracture zone relatively slow; when the advancing distance was more than 100 m, the height of the two belts rapidly extended to 68 m, which was in line with the theoretical calculation results. The research results of this paper have reference significance for the study of the rule of height development of the two belts under similar engineering geological conditions.
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