Grouting failure mechanism and new pre-grouting reinforcement technology of narrow coal pillar in fully-mechanized caving gob-side entry

Grouting failure mechanism and new pre-grouting reinforcement technology of narrow coal pillar in fully-mechanized caving gob-side entry

Abstract With the wide application of large machinery in coal mining, the influence of mine pressure is large and wide. Therefore, it is very important to retain and maintain the strength of coal pillars in the working face section. But the traditional narrow coal pillar grouting technology often ca...

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Bibliographic Details
Main Authors: Dongdong Chen, Zhixuan Zhang, Shuaishuai Yue, Chunyang Tian, Qingbo Jia, Shengrong Xie, Wenkang Zhao, Jingchen Chang, Xiangyu Yang, Fuxing Xie, Hao Pan
Format: Article
Language:English
Published: Nature Portfolio 2025-06-01
Series:Scientific Reports
Subjects:
Fully mechanized caving gob-side coal roadway
Narrow coal pillar
Pre-grouting system
Coal pillar leakage slurry
Coal pillar plugging
Online Access:https://doi.org/10.1038/s41598-025-03710-4
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