Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Yongkui SHI"'
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
Publikováno v:
Applied Sciences, Vol 13, Iss 22, p 12227 (2023)
Effectively avoiding coal mine safety accidents has always been an important issue in the process of coal mining. In order to predict mine pressure hazard and reduce the occurrence of mine safety accidents, this paper innovatively combines logistic r
Externí odkaz:
https://doaj.org/article/d2d6a5c7632c41a68e83f2da59d6c91f
Publikováno v:
Applied Sciences, Vol 13, Iss 19, p 10613 (2023)
Aiming at addressing the problems of low production efficiency and low safety factors in coal mines, this study designed a new type of support equipment and verified its theoretical reliability through the analysis of driving theory. The analysis was
Externí odkaz:
https://doaj.org/article/33fb490d9f3240a199f71d1ad88c511d
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Strip coal pillars caused by strip mining are widely distributed in China. Over time, strip coal pillars are posing more potential hazards as their stability decreases; therefore, it becomes increasingly important to recover coal pillars without dama
Externí odkaz:
https://doaj.org/article/1d170e2f444b4f8fab73eeb1c772bada
Publikováno v:
Mathematics, Vol 11, Iss 7, p 1659 (2023)
In this study, a bi-objective optimization model was established to solve the cooperative distribution problem of a multi-center hybrid fleet by integrating reverse logistics under real-time road conditions. According to the characteristics of the pr
Externí odkaz:
https://doaj.org/article/39578cc0c15d46e6aa8a4692d811971a
Publikováno v:
Applied Sciences, Vol 13, Iss 5, p 2816 (2023)
In China, soft rock roof makes up the majority of coal mine roof, yet it is easy to break due to low strength and poor integrity. As such, it is difficult for the traditional pillar-based roadway protection means and pillarless mining techniques to e
Externí odkaz:
https://doaj.org/article/9473dc6ec79a466fb798f0a8f598f20e
Autor:
Jian Hao, Hua Bian, Yongkui Shi, Anfa Chen, Jiankang Liu, Peizhe Zhang, Linjun Peng, Jianquan Tang
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
Borehole pressure relief technology is an effective way to reduce the elastic energy in the surrounding rock of deep roadways, thereby reducing the risk of regional rock bursts. To avoid large deformation of the roadway caused by pressure relief hole
Externí odkaz:
https://doaj.org/article/02e9928ed6c34ed1afbf737a1cbf1028
Publikováno v:
Geofluids, Vol 2021 (2021)
The coal mine accidents seriously affect the safety and efficiency of mining for coal mining enterprises. The reliable emergency rescue (ER) processes are explored to minimize the loss of accidents. This paper introduces the stochastic Petri net (SPN
Externí odkaz:
https://doaj.org/article/de70a3fed56f445eb78f83b231316a74
Publikováno v:
Energies, Vol 15, Iss 8, p 2871 (2022)
With the ratification of the Paris Agreement at the Paris Climate Conference, reducing carbon emissions has become a global interest. Coal is one of the main industries causing carbon emissions; thus, quantifying carbon emissions from coal mining is
Externí odkaz:
https://doaj.org/article/c88b90df043944aaad2553efa852f3af
Publikováno v:
The Scientific World Journal, Vol 2014 (2014)
The results of the interaction between coal failure and mining pressure field evolution during mining are presented. Not only the mechanical model of stope and its relative structure division, but also the failure and behavior characteristic of coal
Externí odkaz:
https://doaj.org/article/366a1b10ebef47cdac8a69d9f6c5dc22