Zobrazeno 1 - 10
of 343
pro vyhledávání: '"coal burst"'
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 12, Pp 5493-5503 (2024)
ABSTRACT As an effective means of coal burst prevention, large‐diameter drilling pressure relief technology have been widely used in coal burst mines in China. Engineering practice shows that drilling pressure relief has obvious time‐effect. Thro
Externí odkaz:
https://doaj.org/article/05fd133b77814d458f30fcd69bcfaccf
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-21 (2024)
Abstract In the realm of deep earth engineering, increasing excavation depths present formidable challenges like heightened ground stress, permeability, temperatures, and disruptive excavation effects, posing significant safety risks. Scholars predom
Externí odkaz:
https://doaj.org/article/b72584a9c7694188943c98ee4b862191
Publikováno v:
International Journal of Coal Science & Technology, Vol 11, Iss 1, Pp 1-21 (2024)
Abstract The complex stress environment in deep roadways, often exacerbated by thick and hard strata, frequently precipitates coal bursts, posing significant safety hazards. This paper investigates the mechanisms and preventive methods for coal burst
Externí odkaz:
https://doaj.org/article/4efa1d9c242b4d0a94fe437ba0327d37
Autor:
Fuqiang GAO, Zhiguo LU, Xiangyuan PENG, Jinfu LOU, Shuwen CAO, Xiaoqing WANG, Chuang LU, Lei YANG
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 9, Pp 125-136 (2024)
The frequent occurrence of coal burst seriously threatens the safe and efficient recovery of coal resources. The research on the mechanism of coal burst is the basis of prediction and disaster prevention. Aiming at the coal burst event under the cond
Externí odkaz:
https://doaj.org/article/30fecf5ed0094c339cfb3c036572129a
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 9, Pp 3378-3394 (2024)
Drilling pressure relief is one of the methods to reduce the risk of coal bursts in deep mines. However, the effect of the drill hole orientations has not been studied well enough to understand their impact on the burst failure mechanism. In this stu
Externí odkaz:
https://doaj.org/article/ce1dd5c7450f43629ef9ef1248065340
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
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract To explore the multiparameter precursor characteristics of pre- and post-coal burst. Based on a coal burst of LW 1305 in the Zhaolou Coal Mine, an early warning method combining stress‒strain curve and microseismic multiparameter is propos
Externí odkaz:
https://doaj.org/article/5ed8ae190d4c47d2bda3a815f5d935d5
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 15, Iss 1 (2024)
Extra-thick key strata (ETKS) are a key factor causing coal bursts. In this study, field monitoring, physical and numerical modelling, and theoretical analysis were comprehensively adopted to investigate the effect of ETKS on the static and dynamic s
Externí odkaz:
https://doaj.org/article/8861a92ef90e417cad6c21389f1973a5
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
With the increasing demand for coal resources and the unreasonable arrangement of subsequent working faces, mining activities in isolated working faces are more likely to induce coal burst accidents. In this study, the minimum distance principle is u
Externí odkaz:
https://doaj.org/article/96cb36cf602c4d719b7fd26332f9fcc7
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