Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Qingsheng Bai"'
Publikováno v:
Rock Mechanics Bulletin, Vol 3, Iss 2, Pp 100111- (2024)
This study investigates the impact of intermediate (σ2) and minimum (σ3) principal stress unloading on damage behavior and the confining pressure influence on crack initiation stress (σci) in true triaxial stress conditions, utilizing large-scale
Externí odkaz:
https://doaj.org/article/2a6c1578678c4f7691a07d69405c664c
Publikováno v:
International Journal of Coal Science & Technology, Vol 10, Iss 1, Pp 1-15 (2023)
Highlights (1) This paper reviews the water weakening on rock strength and its influencing factors. (2) Various microscopic methods for studying the pore characterization and weakening mechanism of WRI are compared and analyzed. (3) We study the weak
Externí odkaz:
https://doaj.org/article/10319755bc7c4ff7bad78ed4761139ef
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-16 (2022)
Abstract Characterizing the permeability evolution and methane release is of great significance for the safe mining of the high gas outburst seams, as well as coal and gas simultaneous extraction. It contributes to reduce methane emissions from coal
Externí odkaz:
https://doaj.org/article/cdfb25c4ed554e2ebaa58cc1e4beade3
Publikováno v:
International Journal of Coal Science & Technology, Vol 9, Iss 1, Pp 1-16 (2022)
Abstract This study presents an example illustrating the role of in situ 3D stress path method in simulating the roof damage development observed in the Mine-by tunnel at Underground Research Laboratory (URL) located in Manitoba, Canada. The 3D stres
Externí odkaz:
https://doaj.org/article/a1223ddf2b4a4fe1afece1089696532d
Publikováno v:
International Journal of Mining Science and Technology, Vol 27, Iss 5, Pp 853-860 (2017)
While the fully-mechanized longwall mining technology was employed in a shallow seam under a room mining goaf and overlained by thin bedrock and thick loose sands, the roadway pillars in the abandoned room mining goaf were in a stress-concentrated st
Externí odkaz:
https://doaj.org/article/db4c75925b164f13b4f703b4df1ba0cb
Publikováno v:
Geofluids, Vol 2019 (2019)
Externí odkaz:
https://doaj.org/article/5d6eb4faf6714feda4a49cdef0856972
Autor:
Qingsheng Bai, Shihao Tu
Publikováno v:
Geofluids, Vol 2019 (2019)
It is believed that underground longwall mining usually produces fractures in the surrounding rocks. On the one hand, mining-induced fractures not only degrade the strength of the rock mass but also serve as main channels for fluids (e.g., water and
Externí odkaz:
https://doaj.org/article/d58f28a7322b42a68fba36270ec6dfe2
Publikováno v:
Adsorption Science & Technology, Vol 36 (2018)
Knowledge of the gas sorption characteristics of a coal not only helps to explain the mechanism of enhanced coalbed methane recovery but also provides an important basis for simultaneous coal and gas extraction. In consequence, the pure and binary ga
Externí odkaz:
https://doaj.org/article/4d72accaa21a408c88bf87ea26e1e9df
Publikováno v:
Adsorption Science & Technology, Vol 36 (2018)
Moisture content in coal is an important factor affecting the coal seam gas extraction. It directly affects the storage and flow of gas in bituminous coal. In this paper, the cylindrical bituminous coal cores of Xutuan coal mine in Huaibei coal mine
Externí odkaz:
https://doaj.org/article/98726b651a854207a60b0645c3eac8cb
Publikováno v:
Environmental Science & Technology. 57:6425-6434
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2af0c228bd3cc82790c17d0ca934ae0f
https://doi.org/10.1021/acs.est.2c08024
https://doi.org/10.1021/acs.est.2c08024