Fracture Evolution between Blasting Roof Cutting Holes in a Mining Stress Environment

The problem of strong ground pressure caused by thick and hard roofs in coal mine stopes has become more prominent. Blasting roof cutting and pressure relief are effective technical ways to solve this engineering problem. The key to achieving roof cutting and pressure relief is the evolution and pen...

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Bibliographic Details
Main Authors: Min Tu, Gaoming Zhao, Xiangyang Zhang, Qingwei Bu, Jiaxin Dang
Format: Artigo
Language:Inglês
Published: MDPI AG 2022-03-01
Series:Minerals
Subjects:
thick and hard roof
blasting crack evolution
inter-hole crack penetration
roof cutting
seam forming
Online Access:https://www.mdpi.com/2075-163X/12/4/418
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