Zobrazeno 1 - 10
of 904
pro vyhledávání: '"Ground pressure"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract In response to the frequent occurrence of impact events in isolated coal pillars between the upper (lower) mountain areas of mining areas under conditions without obvious mining disturbance, this study takes multiple isolated coal pillar imp
Externí odkaz:
https://doaj.org/article/98e6188c2eee424f868f0d6c44f4f107
Publikováno v:
矿业科学学报, Vol 9, Iss 5, Pp 737-746 (2024)
In order to reveal the characteristics of overlying rock migration and mining pressure manifestation in deep well long wall paste filling mining, the 1123 filling working face of Gucheng Coal Mine was taken as the research object, and geological rada
Externí odkaz:
https://doaj.org/article/f5a2a46ee6374c6c8a132e7e82bc054e
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Characteristic of ground pressure in surrounding rock is generally considered as the theoretical basis of parameter optimization for stope structure and technology. To explore the feasibility of efficient method for the second-step downward
Externí odkaz:
https://doaj.org/article/9fc9779067ed471bab1193ebb741d35c
Autor:
Hongyang Wang, Lianman Xu, Zhijiao Qin, Xiaoliang Li, Xuejing Cao, Yumiao Han, Siqi Li, Yufei Ma, Siqi Gao, Lei Du, Fengshuo Yang
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract As China's coal mines have transitioned to deep mining, the ground stress within the coal seams has progressively increased, resulting in reduced permeability and poor wetting ability of conventional wetting agents. Consequently, these agent
Externí odkaz:
https://doaj.org/article/143d6dc70b7048f5919f398810b8eb9e
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 1, Pp 95-105 (2024)
With coal resource extraction areas are constantly shifting towards the west and deeper regions, and the number of rock burst mines in the western region is increasing rapidly. As a major coal province, Shaanxi Province has a stable scale of coal dev
Externí odkaz:
https://doaj.org/article/b41f9d2e10d1494294cb877d980516a0
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
In multi-seam mining, as mining ranges expand and depths increase, the strong ground pressure exerted on the lower coal-seam working faces (WFs) or roadways by coal pillars (CPs) and the hard roof between the interburdens becomes increasingly severe,
Externí odkaz:
https://doaj.org/article/efba1dbde4a74b739f260e6c547d34c7
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
Introduction: This study focuses on investigating the characteristics of overburden failure and ground pressure behavior in shallow coal seam mining beneath a gully. The research is conducted at the 135201 working face of Shaliang Coal Mine in the Sh
Externí odkaz:
https://doaj.org/article/182610154656409181b6cfd46dc7af74
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 9, Pp 46-54 (2023)
When the mining of the underlying working face of shallow and close seam passes under the overlying remnant coal pillar, it is easy to have an intensive mine pressure-induced dynamic disaster, resulting in personnel and equipment damage, which seriou
Externí odkaz:
https://doaj.org/article/2f18021007034ad78397c33176b53387
Publikováno v:
World Electric Vehicle Journal, Vol 15, Iss 6, p 263 (2024)
Electric vehicles, with their distinct power systems, weight distribution, and power control strategies compared to traditional vehicles, influence the pressure distribution in the tire contact area, thereby affecting the estimation of road adhesion
Externí odkaz:
https://doaj.org/article/ed1ea7ee24c14b6eb0e1663c09d41142
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