A novel Upward-Extended Five-Zone model for overburden failure in deep coal seams with ultra-thick Cretaceous strata

Hui-Yong Yin1, Yu Xiao1, Xiang-Ru Fan2

  • 1College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.

Scientific Reports
|July 3, 2026
PubMed

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