Zobrazeno 1 - 10
of 1 161
pro vyhledávání: '"Deep mining"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 11, Pp 77-83 (2024)
Based on the thermo-fluid-solid coupling law of coal and gas outburst in deep mining, a numerical model of coal and gas outburst is established, and the response of multi-physical parameters in the whole process of coal and gas outburst under high st
Externí odkaz:
https://doaj.org/article/2aae8d94c2d14efb8f94040235f9fca4
Publikováno v:
Meitan xuebao, Vol 49, Iss 10, Pp 4311-4324 (2024)
The rupture of super-thick key strata is a crucial factor in triggering mine dynamic disasters. Investigating the impact of their non-uniform thickness on mining-induced stress environments and rupture dynamic loads, and further revealing the mechani
Externí odkaz:
https://doaj.org/article/025998eee91d42b1bf03300f65619c32
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 9, Pp 88-102 (2024)
Roof with weak interlayer has significant influence on the stability of deep gob-side entry driving, to effectively control the separation of roof with weak interlayer in deep gob-side entry driving under high deviatoric stress, based on the mechanic
Externí odkaz:
https://doaj.org/article/129484505c6c42de9cde93060109f9ec
Autor:
Sitao ZHU, Xiang ZHANG, Fuxing JIANG, Jupeng MA, Xiufeng ZHANG, Kaiwen XIA, Chao WANG, Shidong LI, Jinhai LIU, Quanjie ZHU, Xiaocheng QU
Publikováno v:
Meitan xuebao, Vol 49, Iss 9, Pp 3711-3727 (2024)
In view of the frequent occurrence of rockburst in the coal pillars of high-stress roadways in deep underground coal mines in China, the types and mechanisms of rockburst in coal pillars are studied by means of field investigation, theoretical analys
Externí odkaz:
https://doaj.org/article/fd60c694177e46f1a89983f8e42a6100
Publikováno v:
Meitan xuebao, Vol 49, Iss 9, Pp 3759-3780 (2024)
Rock burst disaster has become a major safety problem in underground coal mining worldwide. Using the true triaxial electro-hydraulic servo loading test system, the stress-strain law, failure characteristics and acoustic emission activity law of coal
Externí odkaz:
https://doaj.org/article/b6fecd291a5f4de78adef7c3260207db
Autor:
Guojian ZHANG, Lianlong FU, Guangli GUO, Wei WEI, Xin GAO, Huaizhan LI, Qingbiao GUO, Xiangsheng YANG
Publikováno v:
Meikuang Anquan, Vol 55, Iss 5, Pp 35-50 (2024)
The Dongsheng Coalfield in Ordos is a Jurassic coal bearing formation, and the 2-2 and 3-1 coal seams in many deep mining areas can be mined in the whole area, and the spacing of coal seams is small. This paper takes Yingpanhao Coal Mine as a geologi
Externí odkaz:
https://doaj.org/article/d7e37667e06641599d8b21fe0c8a2956
Publikováno v:
Meitan xuebao, Vol 49, Iss 4, Pp 1906-1916 (2024)
In the process of deep mining, the temperature of mine water is significantly higher than that of shallow coal seams. The erosion of high-temperature hydrothermal fluids affects the physical and chemical characteristics of coal, which in turn affects
Externí odkaz:
https://doaj.org/article/3699915e26574385b463e4afc10fc311
Autor:
Mingzhong GAO, Jie SONG, Pengfei CUI, Yongcheng LI, Cong LI, Jianan LI, Guikang LIU, Zhenxi YOU, Xiaojun SHI
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 4, Pp 143-154 (2024)
Accurate determination of gas content in deep coal mine is the premise for the prevention and control of gas disaster, as well as the efficient development and utilization of coalbed methane. Traditional coring technology of coal seam is generally op
Externí odkaz:
https://doaj.org/article/73ba226c9e3b4b429a0c93bfec4c3ad7