AUTHOR=Du Feng , Liang Bing , Ren Yixing , Liao Xingchuan , Pei Lingjun , Fan Zuoyuan , Liu Wei TITLE=Study on failure mechanism of cracked coal rock and law of gas migration JOURNAL=Frontiers in Earth Science VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2024.1470723 DOI=10.3389/feart.2024.1470723 ISSN=2296-6463