Theoretical model and experimental verification of seepage-transition-spontaneous imbibition in water migration of water-injected coal.

Qiushuang Sun, YanLei Guo, Jian Chen, Xinda Yang, Xuehan Yan, Xiangming Hu, Liwen Guo, Yee-Chung Jin

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Article in Scientific reports, 2025. 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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8 authors.

Qiushuang SunSchool of Emergency Management and Safety Engineering, North China University of Science and Technology, TangShan, 063210, China.

YanLei GuoSchool of Emergency Management and Safety Engineering, North China University of Science and Technology, TangShan, 063210, China. guoyanleimax@163.com.

Jian ChenSchool of Emergency Management and Safety Engineering, North China University of Science and Technology, TangShan, 063210, China. chenjian@ncst.edu.cn.

Xinda YangSchool of Emergency Management and Safety Engineering, North China University of Science and Technology, TangShan, 063210, China.

Xuehan YanSchool of Emergency Management and Safety Engineering, North China University of Science and Technology, TangShan, 063210, China.

Xiangming HuCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 063210, China.

Liwen GuoSchool of Emergency Management and Safety Engineering, North China University of Science and Technology, TangShan, 063210, China.

Yee-Chung JinFac Engn & Appl Sci, University of Regina, Regina, S4S 0A2, Canada.

Funding

Central Guidance for Local Development Funding Projects 226Z4601GHigher Education Youth Top Talent Project of Hebei BJK2023086Ministry of Education"Chunhui Plan" international cooperation project HZKY20220236National Natural Science Foundation of China 52304216Outstanding Youth Fund Project of Natural Science Foundation of Hebei province E2024209077Program for overseas returnees C20230359Technology Plan Project of Tangshan 21130215C

6 · The paper itself

Abstract

Coal seam water injection is widely applied to prevent mine disasters. In the traditional water migration model of water-injected coal, from ignoring capillary force in the seepage stage to generating the capillary dynamic during the spontaneous imbibition state, no transition state exists from 0 to generating capillary force. In this paper, on the basis of theoretical analysis, an equivalent capillary term is introduced to modify the Forchheimer model, and then a seepage-transition-spontaneous imbibition model that is suitable for water migration of water-injected coal is proposed. The formulas for the upper critical point velocity v

Indexed as

Capillary forceSeepage stageSpontaneous imbibitionTransition stageWater-injected coal

Identifiers

PMID40089529

DOI10.1038/s41598-024-82169-1

PMCPMC11910519

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LicenceCC BY-NC-ND

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