Results 241 to 250 of about 277,436 (279)

Design of fault water-resisting coal pillars based on deep-beam analysis: A comparison of two analytical methods. [PDF]

PLoS One
Wang B, Zha W, Lu H.
europepmc   +1 more source

Study on the influence of stress relief in close-distance coal seam Goaf and roadway excavation disturbance on surrounding rock. [PDF]

Sci Rep
Liu Z, Chen M.
europepmc   +1 more source

Mechanism of bolt rib geometry in controlling the brittle-to-ductile failure transition of bolt-grout interfaces. [PDF]

Sci Rep
Bian W, Yang J, Lu X, He X, Wang K, Zhang C, Yang X, Lei Y, Zhang R, Huang L.   +9 more
europepmc   +1 more source

Study on fissure development law of surrounding rock in horizontal section stope of steeply dipping coal seam group. [PDF]

Sci Rep
Panshi X, Bodi Y, Bo Z, Baofa H, Jiarui F.   +4 more
europepmc   +1 more source

Overburden movement laws in thin bedrock workfaces under thick backfilled loose bodies. [PDF]

Sci Rep
Zheng W, Wei C, Guo S, Zhuang Z, Shi C.
europepmc   +1 more source

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Failure analysis of super-large mining height powered support

Engineering Failure Analysis, 2018
Abstract In order to study the support failure mechanism of a super-large mining height powered support, a mathematical model of the load carrying capability area (LCCA) under various loading conditions for the support was established. A certain type of support was considered as an example, and the distribution characteristics of the LCCA were ...
Zhaosheng Meng, Qingliang Zeng, Kuidong Gao, Shuai Kong, Peng Liu, Lirong Wan   +5 more
openaire   +3 more sources

Overlying strata structural modeling and support applicability analysis for large mining-height stopes

Journal of Loss Prevention in the Process Industries, 2019
Abstract After examining the roof strata movement pattern of fully mechanized mining (or caving) with large mining height, a roof structural model for large mining-height stopes was established based on their overlying rock structure; the overlying rock structure and movement pattern of these stopes were investigated; a method for determining the ...
Zhijie Wen, Enrui Xing, Shaoshuai Shi, Yujing Jiang   +3 more
openaire   +3 more sources

Study on rib spalling control of shortwall drilling mining technology with a large mining height

Arabian Journal of Geosciences, 2021
The drilling shearer and drilling mining technology has been developed in order to effectively control the rib spalling of a shortwall with a large mining height face in a soft thick coal seam. Working face no. 1305 of the Zhaozhuang Coal Mine was taken as the research subject.
Yong Yuan, Cheng Zhu, Hongmin Wei, Chaofeng Yuan, Zhongshun Chen   +4 more
openaire   +1 more source