Zobrazeno 1 - 10
of 421
pro vyhledávání: '"deep mine"'
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 39, Iss 3, Pp 145-152 (2024)
The purpose of the paper is to substantiate possible ways to improve microclimatic conditions at workplaces in deep coal mines by controlling air moisture content. To improve the microclimatic conditions at underground workplaces, the authors propose
Externí odkaz:
https://doaj.org/article/120c90de96a1444e98c4dc7fc58137fb
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 1, Pp 52-64 (2024)
The geological conditions of deep coal resources are complex, and intelligent mining is the only way for the safe, efficient, and green development of deep coal resources. The complete set of intelligent mining technology and equipment that adapts to
Externí odkaz:
https://doaj.org/article/caec3b8e936a497d9f352c504fb3c026
Publikováno v:
Applied Sciences, Vol 14, Iss 22, p 10178 (2024)
This paper studies the effectiveness of the stress-relief groove on the floor of deep coal roadway and determines the influence of the stress-relief groove parameters on the surrounding rock through qualitative analysis. Based on the displacement con
Externí odkaz:
https://doaj.org/article/a6740a5e8c00439689308882095f2644
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 8, Pp 1-11 (2023)
In response to the problems of large deformation, fracture closure and poor permeability of the surrounding rocks in the weak rock roadways of the 1 000 m or deeper coal mines, it is required that the grouting material has good injectability, fast so
Externí odkaz:
https://doaj.org/article/f76fb67342e44c6489a35ed4fcd1fc10
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 14, Iss 1 (2023)
AbstractWith the increase in coal mining depth, many rock bursts triggered by fold structures have been observed, but the disaster mechanism is not clear. This research aims at investigating the influence of upright fold structure(UFS) on rock burst
Externí odkaz:
https://doaj.org/article/e0c6a6fa72e44e6598b41b4a7c3104b5
Publikováno v:
工程科学学报, Vol 45, Iss 3, Pp 349-358 (2023)
The frequent occurrence of core disking in boreholes under high in-situ stress in deep rock engineering leads to the difficulty in intact core sampling on sites. In this study, rock and ore blocks with irregular sizes after blasting in stopes were se
Externí odkaz:
https://doaj.org/article/8f1e844a689a457a8c3fa5c7fff9b5ff
Publikováno v:
Meikuang Anquan, Vol 54, Iss 1, Pp 117-124 (2023)
In view of the unfavorable geological conditions such as weak broken surrounding rock, low self-bearing capacity, complex stress field and dynamic disturbance, we propose a new fault management technology based on surrounding rock modification + loca
Externí odkaz:
https://doaj.org/article/60de3b264db34c75b3471ebb80ffe2cd
Autor:
Światosław Krzeszowski, Paweł Grajper
Publikováno v:
Applied Water Science, Vol 12, Iss 6, Pp 1-8 (2022)
Abstract Balancing the systems of waters in mines or in selected parts of them is an important part of works carried out by geological services of the mines, including the works aiming, for instance, at recording the types of waters flowing into mine
Externí odkaz:
https://doaj.org/article/e2fb29b4f6764442bf1d819f6d8a5eef
Autor:
LI Lan, YANG Yuzhong
Publikováno v:
Meikuang Anquan, Vol 53, Iss 10, Pp 141-146 (2022)
In order to explore the influence of high temperature in deep well on coal dust moisture evaporation characteristics, evaporation tests were conducted with four coal dust samples in the temperature of 25 ℃, 30 ℃, 35 ℃, 40 ℃, 45℃ and 50 ℃,
Externí odkaz:
https://doaj.org/article/5a9a2895334545c5a1d5d70d36c33e9a
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