Evidence map›Paper›PMID 42399638›Full record

ArticleScientific reports2026

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

Hui-Yong Yin, Yu Xiao, Xiang-Ru Fan, Dao-Lei Xie, Jiu-Chuan Wei, Hui-Gong Niu, Wei-Jie Zhang, Cheng-Hao Han, You-Qing Wei

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Hui-Yong YinCollege of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.
Yu XiaoCollege of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.
Xiang-Ru FanYingpanhao Coal Co., Ltd., Yanzhou Coal Industry Co., Ltd., Ordos, 017300, China.
Dao-Lei XieCollege of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.
Jiu-Chuan WeiCollege of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China. jcwee@126.com.
Hui-Gong NiuCollege of Resources and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China.
Wei-Jie ZhangCollege of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.
Cheng-Hao HanCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao, China.
You-Qing WeiCollege of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China. yqwei@sdust.edu.cn.

Funding

National Natural Science Foundation of China 52304239Shandong Provincial Natural Science Foundation ZR2023QD026Taishan Scholar Foundation of Shandong Province tsqnz20250739
6 · The paper itself

Abstract

Preventing roof water hazards in deep coal mining under thick, weakly cemented overburden is challenging, particularly in Western China where traditional theories often fail to predict high-level water inrush caused by the independent secondary fracture of massive upper strata. Using the Yingpanhao Coalfield as a case study, this research investigates overburden failure laws through a comprehensive approach involving field monitoring (including distributed optical fiber sensing), PFC numerical simulations, and theoretical analysis. The study identifies a distinct "Coal Measures-Cretaceous double-layer structure." Results show significant behavioral differences between these strata, causing a unique "secondary movement" phenomenon. Consequently, this paper proposes a new "Upward-Extended Five-Zone" model, modifying the traditional "Three-Zone" theory. The model delineates the caving zone, low-position fracture and bending zones (within Coal Measures), and high-position fracture and bending zones (within Cretaceous strata). These findings offer theoretical support for water hazard prevention in similar geological conditions.

Indexed as

Deep Shan-Meng mining areaDistributed optical fiber monitoringDouble-layer structureFive-zone modelOverburden movement

Identifiers

PMID42399638
PMCPMC13498582

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