Study and application of the influence of inclination angle on the cross-fusion mechanism of high gas thick coal seam  

作　　者：Pengxiang Zhao Zechen Chang Shugang Li Risheng Zhuo Yongyong Jia Qiudong Shao Wen Lei 

机构地区：[1]College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi’an 710054,China [2]Western Mining Gas Intelligent Extraction Engineering Research Centre,Xi’an 710054,China [3]Xinjiang Coal and Coalbed Methane Engineering Technology Research Centre,Urumqi 830091,China [4]Xinjiang Key Laboratory of Coal Mine Disaster Intelligent Prevention and Emergency Response,Xinjiang Institute of Engineering,Urumqi 830023,China [5]Xinjiang Uygur Autonomous Region Coal Science Research Institute,Urumqi 830091,China [6]Xinjiang Changji Heze Tengda Mining Co.,Ltd.,Changji 831100,China

出　　处：《International Journal of Mining Science and Technology》2025年第1期69-85,共17页矿业科学技术学报(英文版)

基　　金：supported by the National Natural Science Foundation of China(No.5217-4205);Shaanxi Provincial Outstanding Youth Science Fund Project(No.2023-JC-JQ-40);National Key Research and Development Project(No.2023YFC3009004);Key Project of Shaanxi Provincial Department of Education(No.22JY040);Xinjiang Uygur Autonomous Region Key Research and Development Task Special Project(No.2022B01034-3);Key Laboratory of Green Coal Mining in Xinjiang,Ministry of Education(No.KLXGY-KA2404);Shaanxi Provincial Key Research and Development Task General Project(No.2024GX–YBXM-490)。

摘　　要：In this study,to better decide the effect of coal seam dip angle upon the dynamic change of the crossfusion in gas transport and storage areas during the progress of working face in the high gas thick coal seam,a two-dimensional physical simulation experiment regarded as the theoretical research was conducted to properly explore the variation law of overburden fracture.The results demonstrated that the boundary of the gas transport zone was located in the region of fracture separation.The boundary of the gas storage area was located in the abrupt penetration zone.Also,according to the information theory,the state of the gas transport and storage areas was determined by the changing trend of the fracture rate and fracture entropy.The mathematical representation model of the dip effect in gas transport and storage areas was established.The criteria upon which the regional location of the gas transport area and gas storage area can be based were put forward.The cross-fusion evolution process of the dip effect in gas transport and storage areas was revealed as well.The research results could provide guidance for realising directional and accurate gas extraction.

关 键 词：Coal seam dip angle Cross fusion High gas thick coal seam Overburden fracture Gas transport and storage areas 

分 类 号：TD712[矿业工程—矿井通风与安全]