Study on Surrounding Rock Control of Withdrawal Space in Fully Mechanized Caving Mining of a 19 m Extra-Thick Coal Seam

Study on Surrounding Rock Control of Withdrawal Space in Fully Mechanized Caving Mining of a 19 m Extra-Thick Coal Seam

The section span of the withdrawal space of fully mechanized top coal caving in an extra-thick coal seam is large, and with the gradual withdrawal of the hydraulic support, a series of strong dynamic pressure disasters occur in the withdrawal space, and the difficulty of surrounding rock support con...

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Bibliographic Details
Main Authors: Dongdong Chen, Zhiqiang Wang, Shuaishuai Yue, Shengrong Xie, Fulian He, Chunyang Tian, Zaisheng Jiang, Dawei Liang, Bohao Qi
Format: Article
Language:English
Published: MDPI AG 2024-10-01
Series:Applied Sciences
Subjects:
top coal caving
extra-thick coal seam
withdrawal space
final mining
coal caving distance
fracture position
Online Access:https://www.mdpi.com/2076-3417/14/21/9694
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