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Xiang-Jun Chen

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Review Open access Aug 2026

A Review of Instability Mechanisms and Control Technologies for Gas Drainage Boreholes in Soft Coal Seams in China

In China, soft coal seams make up over 50% of all coal seams. The instability and failure of boreholes in soft coal seams are key factors that result in an average gas drainage rate of less than 30% in China, which has become a “bottleneck” for safe and efficient coal mining. Based on 247 articles from the Web of Scien...

Huan-Chun Liu, Xiang-Jun Chen, Jian-Bing Li et al. · 0 citations
2026

Research on Combined Perforation and Blasting Technology for Increasing Permeability in Low-Permeability Hard Coal Seams

To address the low efficiency and uncontrollable fracture expansion in gas extraction from low-permeability hard coal seams, a synergistic permeability enhancement technology integrating loose blasting and hydraulic perforation (LBHP) is proposed. Combined with theoretical analysis, ANSYS/COMSOL numerical simulatio...

Liguo Wang, Jing-Tao Wu, Xiang-Jun Chen et al. · 0 citations
Dec 2026

Quantification and Mechanism of the Interborehole Effect in Coal Seam Gas Drainage

Coal seam gas drainage is crucial for reducing carbon emissions and ensuring safe coal mine production. In engineering, multiborehole combined drainage is widely adopted. However, the interaction among boreholes leads to the complex superposition of their respective influence zones. Previous research has largely focu...

Er-Lei Su, Guang-Xu Zhou, F. Niu et al. · 0 citations

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