Zobrazeno 1 - 10
of 78
pro vyhledávání: '"steeply dipping coal seam"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 10, Pp 1-10 (2024)
The flying-gangue hazard has long threatened the safety of personnel and mining equipment in steeply dipping/inclined coal seams. A flying gangue maybe produces a large number of “subgangues” after impacting on the longwall floor, it’s damage i
Externí odkaz:
https://doaj.org/article/442145c25d9d432eb3d4c9384dccd323
Autor:
Yongping WU, Tao HU, Bosheng HU, Panshi XIE, Yuqian DU, Zhuangzhuang YAN, Tong WANG, Baoheng LIU
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 7, Pp 187-198 (2024)
In order to solve the problems of ignoring multi-dimensional load characteristics, cumbersome modeling process and long design cycle in the design process of hydraulic support in steeply dipping angle coal seam, combined with the load characteristics
Externí odkaz:
https://doaj.org/article/10851ce3120d4c3ea9b59a2a9c15e2cd
Autor:
Baofa Huang, Panshi Xie, Yongping Wu, Weidian Lin, Sheng Luo, Shicheng Wang, Zekang Wen, Jianjie Chen
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-19 (2024)
Abstract To study the fracture instability characteristics and fracture mechanism of overlying strata in steeply dipping and large mining height stope, through the combination of physical simulation experiment, numerical calculation, theoretical anal
Externí odkaz:
https://doaj.org/article/fb26a164337141e898b55e4e424de139
Autor:
Yongping WU, Yuqian DU, Panshi XIE, Hongwei WANG, Bosheng HU, Zhuangzhuang YAN, Tong WANG, Tao HU
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 4, Pp 314-325 (2024)
The hydraulic support is the core of the stability of the ‘surrounding rock and equipm ent’ system in the pitching oblique working face of steeply dipping coal seam. The existing hydraulic support structure can not meet the requirements of spatia
Externí odkaz:
https://doaj.org/article/340c019cdca74d0a81d50db5d9f69635
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 3, Pp 142-150 (2024)
The dip angle of coal seam is one of the important factors that cause the complexity and particularity of the mining dynamic behavior of the large dip angle stope and induce many disasters and accidents. In order to reveal the influence law of the di
Externí odkaz:
https://doaj.org/article/e5a0fe67d1624e5f9f30a8d59c165e1f
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 280-297 (2024)
The structure and stress environment of the surrounding rock at the longwall mining area in the steeply dipping coal seam are alienated, and the composition factors and disaster modes of the ”support and surrounding rock” system in the working fa
Externí odkaz:
https://doaj.org/article/eced59fda36d458cbe322a62e2690321
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 15, Iss 1 (2024)
To solve the problem of stability control of coal pillar in steeply dipping coal seam (SDCS), based on the characteristics of surrounding rock structure and stress environment of the coal pillar, a special bearing structure of ‘roof-coal pillar’
Externí odkaz:
https://doaj.org/article/81feeaa4bc47454ca80ae7496161e147
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 15, Iss 1 (2024)
AbstractWhen the working face of a steeply dipping coal seam crosses a fault, the dynamic disturbance caused by the mining load induces fault activation, causing large deformation and failure of the roadway. In this study, a physical similarity simul
Externí odkaz:
https://doaj.org/article/b88c63a6130643a9976f8f833375c063
Autor:
Yongping WU, Ding LANG, Dongfeng YUN, Panshi XIE, Hongwei WANG, Xicai GAO, Shenghu LUO, Youfu ZENG, Wenyu LYU, Yanli ZHANG, Bosheng HU, Jingyu HUANGFU, Bangyuan ZHOU, Guochun HUANG, Li WANG, Junming LI, Bin LIU
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 1, Pp 25-51 (2024)
The steeply dipping coal seam is one of the main forms of coal storage in China. It is widely and regionally distributed. According to incomplete statistics, twenty-six provinces, autonomous regions and municipalities directly under the central gover
Externí odkaz:
https://doaj.org/article/d6d8d35fb84f457dbaaf901e955edba8
Autor:
Panshi Xie, Baofa Huang, Yongping Wu, Shenghu Luo, Jianqiang Jiao, Chengyang Tian, Jianjie Chen
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 14, Iss 1 (2023)
AbstractIn this paper, taking a mine in Xinjiang as the engineering background, through the combination of physical simulation experiment, 3DEC numerical calculation, theoretical analysis and field monitoring, the fracture evolution characteristics o
Externí odkaz:
https://doaj.org/article/98caf07d6a1d4544bda2c857b4b75078