Zobrazeno 1 - 10
of 28
pro vyhledávání: '"JILIANG KAN"'
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:
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:
Applied Sciences, Vol 14, Iss 17, p 7737 (2024)
Determining the advanced mining influence range of an underground working face is crucial for preventing dynamic disasters, such as coal bursts and gas outbursts. In this study, the occurrence of advanced seismicity before the working face as well as
Externí odkaz:
https://doaj.org/article/7d1691f0d0bb4e97ae883b721b9c8008
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 14, Iss 1 (2023)
AbstractDeep gob-side entry (DGSE) shows rock burst risk under the condition of kilometer depth and hard roof. Based on the established conditions of the Tengdong coal mine, theoretical analysis, microseismic (MS) monitoring, and numerical modeling w
Externí odkaz:
https://doaj.org/article/abb90247edce4eacb7aeec706947f204
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 14, Iss 1 (2023)
AbstractIn multi-hole blasting, the design of the initiation pattern is critical for the blasting effectiveness, but its effects on rock damage and blasting seismic are still unclear. This research focused on investigating the effect of initiation pa
Externí odkaz:
https://doaj.org/article/9ac5ef6d62d747d992cc252c929578a9
Publikováno v:
Underground Space, Vol 7, Iss 6, Pp 1068-1085 (2022)
Blasting technology is widely used to prevent coal bursts by presplitting the overburden in underground coal mines. The control of blasting intensity is important in achieving the optimal pre-split effectiveness and reducing the damage to roadway str
Externí odkaz:
https://doaj.org/article/fd65f1860771429eb86453dd95d28715
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 13, Iss 1, Pp 2508-2534 (2022)
Rock burst is one of the challenging problems restricting the safe and high-efficiency mining of deep-buried coal seams, and roof deep-hole blasting (RDHB) is commonly practiced in highly burst-prone zones in coal mines to control rock bursts. This r
Externí odkaz:
https://doaj.org/article/2a8978f9d5e74c26b304ffd6ff71ebd8
Publikováno v:
Frontiers in Earth Science, Vol 10 (2023)
Coalburst is a violent dynamic failure of coal during underground mining. It is of significance to study failure pattern as well as energy evolution and transition during coalbursts and how they are influenced by pre-confinement. This paper presents
Externí odkaz:
https://doaj.org/article/9b105d8c6edd4dc68966de5500028181
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Coal burst disaster is easily triggered by mining-induced fault unloading instability involving underground engineering. The high-static stress environment caused by complex geological structures increases the difficulty in predicting and alleviating
Externí odkaz:
https://doaj.org/article/0bf55668070e46ebb16ba34c4185f3d6
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Some industrial activities in mines, such as underground coal mining, destress blasting for preventing rockburst, and ground blasting for mining, can cause microseismic occurrence. The microseismic waveform contains abundant information on the hypoce
Externí odkaz:
https://doaj.org/article/32822fd051534f6b92a63591dcfc2cd7