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Article
An Optimized Destress Blasting Design for Hard Roof During Early Mining Stage: A Case Study
This paper presents an optimized destress blasting design for hard roof control during early mining stage of the mine. Experience of field operation following an innovative borehole and blasting design to solv...
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Article
Experimental Study on Permeability Evolution of Bituminous Coal Under High Temperature and Volumetric Stress
Studies on coal permeability at high temperatures (> 300 ℃) under the thermo–hydro–mechanical–chemical (THMC) coupling effect are few and their conclusions are divergent. Herein, the influence of different vol...
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Article
Effects of supercritical carbon dioxide under different conditions on mechanical properties and energy evolution of coal
The experiments of soaking coal in supercritical carbon dioxide for different times and under different temperatures were performed. Combined with computed tomography scanning, acoustic emission detection and ...
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Article
Modification characteristics of supercritical carbon dioxide temperature and action time on coal mesostructure
In using supercritical carbon dioxide to intensify the mining of coalbed methane, the structural characteristics of coal will change with the injection of supercritical carbon dioxide. It is particularly neces...
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Article
Experimental study on the physico-mechanical properties and temperature field evolution of granite subjected to different heating–cooling treatments
Rock cracking caused by thermal shocking occurs widely in geothermal exploitation processes, such as wellbore drilling, reservoir stimulation, and long-term geothermal extraction. In this study, the permeabili...
