Zobrazeno 1 - 10
of 242
pro vyhledávání: '"Mining-induced stress"'
Publikováno v:
International Journal of Mining Science and Technology, Vol 34, Iss 8, Pp 1095-1114 (2024)
Multistage hydraulic fracturing of horizontal wells (MFHW) is a promising technology for controlling coal burst caused by thick and hard roofs in China. However, challenges remain regarding the MFHW control mechanism of coal burst and assessment of t
Externí odkaz:
https://doaj.org/article/837476f7ea694c3191cad8dfcdfb3e78
Autor:
Yuesong TANG, Wenchao SUN, Zengqiang LI, Peng CAO, Wei WANG, Xiaochen ZHENG, Fuqiang ZHANG, Mingzhen CHEN, Zhaohui WANG
Publikováno v:
Meitan xuebao, Vol 49, Iss S1, Pp 22-35 (2024)
High stress and multi faults lead to rising burst frequency in deep coal mine. Though backfilling mining serves as the most straightforward method for stress-decreasing and burst-preventing, it fails to eliminate coal burst completely. In order to de
Externí odkaz:
https://doaj.org/article/01cfe40c8a1f4b41908c451a75146bc6
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract In the process of fully mechanized top-coal caving mining, the top-coal is affected by mining-induced stress, and the stress varies along the strike direction of working face, so the boundary position of its entering the limit equilibrium st
Externí odkaz:
https://doaj.org/article/d6777979fec84d41b5b6d0c5fc063685
Autor:
Zhaohui WANG, Mingzhen CHEN, Qiang LI, Wei WANG, Zengqiang LI, Desheng XU, Xiaochen ZHENG, Shaolong SUN, Chuanping WU, Xinyang GUO, Junqi AN
Publikováno v:
Meitan xuebao, Vol 49, Iss 4, Pp 1804-1818 (2024)
High stress is the main reason for high frequency of rock burst in deep coal mines. Backfilling mining serves as an effective method to control roof strata movement, alleviate the degree of stress concentration, and reduce the failure of surrounding
Externí odkaz:
https://doaj.org/article/ea14683555994b64ba896a55e3521bfe
Publikováno v:
Heliyon, Vol 10, Iss 13, Pp e33552- (2024)
Single Recovery Roadway (SRR) is a novel retraction technology in the non-pillars mining innovation system. In previous support withdrawing, single recovery roadway was usually replaced by a dual-recovery roadway or cut the coal wall before the suppo
Externí odkaz:
https://doaj.org/article/a760e2d37e71464b8dfdcf20de653f90
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 3, Pp 142-150 (2024)
The dip angle of coal seam is one of the important factors that cause the complexity and particularity of the mining dynamic behavior of the large dip angle stope and induce many disasters and accidents. In order to reveal the influence law of the di
Externí odkaz:
https://doaj.org/article/e5a0fe67d1624e5f9f30a8d59c165e1f
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 351-366 (2024)
Extra-thick sandstone confined aquifer is widely spread in the overburden strata in Shaanxi and Inner Mongolia provinces. During coal mining, the water inflow in the working face is severe and the confined water level in the roof aquifer decreases si
Externí odkaz:
https://doaj.org/article/1765dc239827485bbee67f11d98b0cc5
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 280-297 (2024)
The structure and stress environment of the surrounding rock at the longwall mining area in the steeply dipping coal seam are alienated, and the composition factors and disaster modes of the ”support and surrounding rock” system in the working fa
Externí odkaz:
https://doaj.org/article/eced59fda36d458cbe322a62e2690321
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 11, Pp 2868-2876 (2023)
Investigation of mining-induced stress is essential for the safety of coal production. Although the field monitoring and numerical simulation play a significant role in obtaining the structural mechanical behaviors, the range of monitoring is not suf
Externí odkaz:
https://doaj.org/article/3f94b3f0ac654ced8cc58551485703f8
Publikováno v:
Meitan xuebao, Vol 48, Iss 8, Pp 2995-3008 (2023)
In order to better understand the formation of thrust fault in coal measures and how it makes a difference on mining-induced disasters, a simulation system for the formation process of a new type of thrust fault in coal measures has been improved, wh
Externí odkaz:
https://doaj.org/article/7c0df97edc804253a9ec651632fae2e0