Evidence map›Paper›PMID 42143078›Full record

ArticleScientific reports2026

Deviatoric stress evolution and time step control technology of retreat roadway surrounding rock in fully mechanized working face.

Zhiqiang Wang, Tingzhao Li, Lu Lin, Xinyu An, Haoqi Zhao, Xinsheng Geng, Jiashu He

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In one paragraph

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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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Zhiqiang WangSchool of Energy and Mining Engineering, China University of Mining and Technology- Beijing, Beijing, 100083, China.
Tingzhao LiSchool of Energy and Mining Engineering, China University of Mining and Technology- Beijing, Beijing, 100083, China. ltz10084610@126.com.
Lu LinSchool of Energy and Mining Engineering, China University of Mining and Technology- Beijing, Beijing, 100083, China.
Xinyu AnSchool of Energy and Mining Engineering, China University of Mining and Technology- Beijing, Beijing, 100083, China.
Haoqi ZhaoSchool of Energy and Mining Engineering, China University of Mining and Technology- Beijing, Beijing, 100083, China.
Xinsheng GengSchool of Energy and Mining Engineering, China University of Mining and Technology- Beijing, Beijing, 100083, China.
Jiashu HeSchool of Energy and Mining Engineering, China University of Mining and Technology- Beijing, Beijing, 100083, China.

Funding

National Natural Science Foundation of China 51774289
6 · The paper itself

Abstract

The distribution characteristics of the deviatoric stress tensor (DST) field in the surrounding rock of the end-mining retreat roadway (ERR) are intricate, exerting a substantial influence on the stability of the ERR's surrounding rock. Taking the fully mechanized working face and its retreat roadway in Wutong Coal Mine as the engineering backdrop, initially, a numerical model of the DST in the end-mining coal pillar (ECP) was established to analyze its evolutionary pattern. Based on the response surface methodology (RSM) model, the significance of each influencing factor was examined. Subsequently, the three dimensional stress expression above the ECP was deduced, and the invariants and distortion energy (DE) of the DST at any position within the ECP were ascertained. Then, the expressions for the cutting height and cutting angle were derived, and a novel time step control technology (TSCT) for the ERR's surrounding rock was put forward, based on the real-time evolution characteristics of DST, dynamic matching of support strategies and roof cutting parameters is achieved through two stages of passive reinforcement and active roof cutting to achieve collaborative control. Compared with traditional static design or single time step methods, this technology reduces the deformation rate of surrounding rock by about 84% through step-by-step and timely application of support and cutting. Ultimately, according to the field measured data, it was demonstrated that this technology can effectively mitigate the deformation of the ERR's surrounding rock.

Indexed as

Control technologyDeviatoric stress tensorEnd-mining coal pillarFully mechanized working faceRetreat roadway

Identifiers

PMID42143078
PMCPMC13376896

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