Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Kaijun Miao"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract The geological phenomenon of igneous rock invading coal seam is widely distributed, which induces mining risk and affects efficient mining. The pre-splitting blasting method of igneous rock is feasible but difficult to implement accurately,
Externí odkaz:
https://doaj.org/article/d75a903f73ed42ceb3812778726ce36a
Publikováno v:
Case Studies in Thermal Engineering, Vol 61, Iss , Pp 104918- (2024)
The aim of this paper is to explore hydrothermal transport in surrounding rocks during deep mining, focusing on the mechanisms and key factors influencing groundwater seepage and heat accumulation disasters. Stress–seepage coupling tests were condu
Externí odkaz:
https://doaj.org/article/ce7c310f7ceb4547b9b71112f6b30456
Autor:
Zhaopeng Wu, Yunpei Liang, Kaijun Miao, Qigang Li, Sichen Liu, Qican Ran, Wanjie Sun, Hualong Yin, Yun Ma
Publikováno v:
Fractal and Fractional, Vol 8, Iss 7, p 407 (2024)
The coal pillar is an important structure to control the stability of the roadway surrounding rock and maintain the safety of underground mining activities. An unreasonable design of the coal pillar size can result in the failure of the surrounding r
Externí odkaz:
https://doaj.org/article/9084643849534063ac2716607c412852
Key Bearing Structure Instability Mechanism: A Case Study in Mining Under Close-Distance Coal Pillar
Publikováno v:
Geofluids, Vol 2024 (2024)
This study is aimed at solving the issue of mining under the boundary coal pillar of the close-distance coal seam that causes roof falling. This study established a new key bearing structure model for analyzing the structural instability mechanism wh
Externí odkaz:
https://doaj.org/article/59fcd74c13264006a6f559b3bacf7d25
Autor:
Long Tang, Shihao Tu, Hongsheng Tu, Kaijun Miao, Wenlong Li, Hongbin Zhao, Jieyang Ma, Lei Zhang
Publikováno v:
Fractal and Fractional, Vol 8, Iss 4, p 240 (2024)
In order to explore the influence of dip angles on the deformation and failure of a coal–rock combination, uniaxial compression experiments were carried out on a coal–rock combination with different dip angles, and the acoustic emissions (hereina
Externí odkaz:
https://doaj.org/article/5ce7f9ebaeaa4ee18f6ca79144c236c0
Autor:
Xun Liu, Shihao Tu, Hongsheng Tu, Long Tang, Jieyang Ma, Yan Li, Wenlong Li, Kaijun Miao, Hao Tian
Publikováno v:
Geofluids, Vol 2023 (2023)
The caving characteristics of the goaf significantly impact the mining stability of the working face. The coal-forming environment of the steeply dipping coal seam is complex. After mining, the caving rock mass rolls to the lower part of the working
Externí odkaz:
https://doaj.org/article/21602b0265f5461696b53897d7e0cda2
Autor:
Kaijun Miao, Shihao Tu, Hongsheng Tu, Xun Liu, Wenlong Li, Hongbin Zhao, Long Tang, Jieyang Ma, Yan Li
Publikováno v:
Fractal and Fractional, Vol 6, Iss 9, p 486 (2022)
A fractal realizes the quantitative characterization of complex and disordered mining fracture networks, and it is of great significance to grasp the fractal characteristics of rock movement law to guide mine production. To prevent the water-conducti
Externí odkaz:
https://doaj.org/article/e3feb4acfd2441fc8331b20cd7130df4
Deformation Law and Control Measures of Gob-Side Entry Filled with Gangue in Deep Gobs: A Case Study
Publikováno v:
Advances in Materials Science and Engineering, Vol 2021 (2021)
Aiming at the large deformation problem of gob-side entry in solid filling mining, the roof subsidence of gob-side entry retaining (GER) was studied under the influence of gangue filling, by taking a deep filling working face in Shandong Province as
Externí odkaz:
https://doaj.org/article/14bdf59a0e8c43f29b1901f09fa8e998
Publikováno v:
Geofluids, Vol 2021 (2021)
When a working face is crossing the abandoned roadways, problems such as roof subsidence, rock fracture, and instability will occur, resulting in widespread roof fall and rib spalling, which seriously affect safe and efficient mining on the working f
Externí odkaz:
https://doaj.org/article/886bbe41e3ee4498945a4f9cfec517d3
Autor:
Wenlong Li, Shihao Tu, Hongsheng Tu, Xun Liu, Kaijun Miao, Hongbin Zhao, Jieyang Ma, Long Tang, Yan Li
Publikováno v:
Sustainability; Volume 14; Issue 22; Pages: 15054
Roof-type rock burst (RTRB) frequently occurs in the hard, thick roof of working faces, which causes roadway failure, facility damage and even personnel casualties. Previous research results show that mining speed has obvious effects on the rock burs