Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Strata control"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Understanding and controlling the ground stress in deep coalfield mining is crucial for ensuring mine safety and efficiency. This study aims to address two unresolved scientific issues in ground stress research: the selection of optimal exca
Externí odkaz:
https://doaj.org/article/269e2c188f224135bba421afb460d790
Autor:
Mingzhong LI, Wenge ZHAO, Ruyu YAN, Jiachen WANG, Yajun LEI, Zheng YANG, Huijun HAN, Jinhu ZHANG, Yanjun FENG, Desheng ZHANG, Zhizeng HUANG
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 9, Pp 199-209 (2024)
As an important energy support for China”s economic development, coal will remain dominant in energy consumption for a period of time in the future. With the continuous development of related technical equipment, some mines in China have achieved a
Externí odkaz:
https://doaj.org/article/6c0196e573e2412a83e270b6e6cb33a7
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 16-35 (2024)
Studying the dynamic response of rock mass mining and strata control technology is of great significance for promoting safe and efficient coal production and ensuring stable energy supply. It is the theoretical basis for scientific mining of coal res
Externí odkaz:
https://doaj.org/article/31d2bd9fe1a54a43a2c6b32a6f83d433
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
Publikováno v:
Alexandria Engineering Journal, Vol 73, Iss , Pp 473-485 (2023)
Mining of close coal seams envisages reservation of a large number of section coal pillars of a total width ranging from 30 to 40 m. This results in an enormous waste of coal resources and risks of spontaneous combustion, instability, and damage to t
Externí odkaz:
https://doaj.org/article/0e9a053e04f24808b3ca4e3c46063f50
Autor:
Binbin Huo, Jixiong Zhang, Meng Li, Nan Zhou, Qiang Zhang, Xiao Wang, Lingling Shen, Kunpeng Yu, Zhihui Sun
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 967-975 (2023)
Shotcrete mortar is an imperative material for tunnel surface supporting. The mine environment with different temperature affects the mechanical development of mortar, resulting in a difficult to predict its compressive strength development at high t
Externí odkaz:
https://doaj.org/article/be6232c8408c44b69618796c1fd974e8
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 1, Pp 80-94 (2023)
Since widely accepted by international scholars, Voussoir Beam Theory proposed by Academician Minggao Qian helps the research on underground mining pressure realize leapfrog development from the stage of qualitative hypothesis to quantitative analysi
Externí odkaz:
https://doaj.org/article/657ceefdff76434faae52a23515bf646
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 1, Pp 31-44 (2023)
The application of hydraulic fracturing technology on rock fracturing for hard and complete roof, and destressing for roadways with high stresses is increasingly widespread. Based on a top coal caving working face with extra-thick coal seam and compl
Externí odkaz:
https://doaj.org/article/e16af0a6cd5c409aa2c03fa9d31641d1
Autor:
Lingampally Sai Vinay, Ram Madhab Bhattacharjee, Nilabjendu Ghosh, Gnananandh Budi, Jagapthal Vinod Kumar, Shankar Kumar
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 13, Iss 1, Pp 1556-1570 (2022)
In underground coal mining, strata instability is one of the most catastrophic hazards, which involves sudden and violent dynamic failure of the pillars and overlying strata. Despite decades of research, the contributing factors and mechanisms of fai
Externí odkaz:
https://doaj.org/article/cf9a1eb4028547918f3b92d3f7f98833
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