Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Kunyou Zhou"'
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 15, Iss 1 (2024)
AbstractExtra-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 d
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:
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:
ACS Omega, Vol 6, Iss 49, Pp 33822-33836 (2021)
Externí odkaz:
https://doaj.org/article/e77688438f2545418f7249e941d16785
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
Autor:
Anliang Lu, Linming Dou, Jinzheng Bai, Yanjiang Chai, Kunyou Zhou, Jiliang Kan, Jinrong Cao, Shikang Song
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
In underground coal mines, the deep-hole blasting (DHB) technology is generally adopted for thick hard-roof control. This technology uses the energy released by explosives to weaken the energy storage capacity of hard roof so as to prevent hard-roof
Externí odkaz:
https://doaj.org/article/acd5b7be12154c9cb0dc50817ddbbc26
Publikováno v:
Geofluids, Vol 2021 (2021)
This research is aimed at investigating the influence of the coal height ratio on the mechanical properties and damage behavior of rock-coal-rock combined samples (RCRCS) under coupled static and dynamic loads. For this purpose, a uniaxial cyclic dyn
Externí odkaz:
https://doaj.org/article/28d9fe93ed91429fb367071b53c0371c
Publikováno v:
Fractal and Fractional, Vol 6, Iss 7, p 361 (2022)
Discrimination of various microseismic (MS) events induced by blasting and mining in coal mines is significant for the evaluation and forecasting of rock bursts. In this paper, multifractal and moment tensor inversion methods were used to investigate
Externí odkaz:
https://doaj.org/article/a0097cc9c7af4639b57c1eaa1f16f876
Publikováno v:
Geofluids, Vol 2020 (2020)
Monitoring and early-warning are critical for the prevention and controlling of rock burst in deep coal mining. In this study, rock burst risk assessment criterion was built based on the correlativity between seismic velocity and stress state in coal
Externí odkaz:
https://doaj.org/article/b62df55d999f4af8bf991d3050a028b3