Zhai-nan Zhang, Ke Yang, Xin Lyu, Xiao-lou Chi, Wenjie Liu
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Experimental Study on the Characteristics of Energy Accumulation before Peak in Coal Rock Combinations with Different Dip Angles
The influence of water content and dip angle conditions on the pre peak energy accumulation characteristics of coal rock assemblages and their mechanism of action are crucial for studying the stability of high dip angle coal seams. The results indicate that water content changes the peak strength turning point. The accumulated energy before the peak gradually decreases from 0° to 60° and increases at 60° to 90°. As the inclination angle of the interface increases, the pre peak energy accumulation decreases. As the water content increases, the proportion of coal components gradually increases, while the proportion of rock components gradually decreases, and the energy accumulated before the peak of coal components is greater than that of rock components. The energy reduction rate gradually increases from 0° to 60° and decreases from 60° to 90°. When the inclination angle of the interface is 0° ∼ 30°, 30° ∼ 60°, and 90°, the main mechanism affecting its stability is the combined effect of water weakening, water weakening, and interface slip, as well as the uneven deformation of the coal rock interface.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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