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2026, 02, v.45 29-35
考虑表面裂隙煤矿巷道复合顶板破坏特征研究
基金项目(Foundation): 山西省高等学校科技创新计划项目(2024L392); 博士毕业生及博士后研究人员来晋工作科研经费项目(2024PT-07)
邮箱(Email):
DOI: 10.13301/j.cnki.ct.2026.02.006
摘要:

为了推进煤矿巷道顶板稳定性研究进展,采用理论分析结合室内试验等方式,针对存在表面裂隙复合巷道顶板破坏特征开展研究。分析了不同裂隙倾角及不同岩性组合情况下巷道顶板的承载情况,并进行相关试验。结果表明:复合顶板不同岩性的层位关系会影响试件承载性能,当硬岩中存在裂隙时,承载能力呈现快速下降的特点;无论何种复合岩层,当试件存在表面裂隙且裂隙倾角增大时,顶板承载能力会逐渐减小;当不受裂隙影响时,复合顶板承载能力与岩层加权平均强度保持一致。

Abstract:

In order to promote the research progress of coal mine roadway roof stability, theoretical analysis combined with indoor tests and other methods are used to study the roof failure characteristics of composite roadway with surface cracks. The bearing capacity of roadway roof under different fracture dip angles and different lithologic combinations is analyzed, and relevant tests are carried out. The results show that the strata relationship of different lithology of the composite roof will affect the bearing capacity of the specimen. When there are cracks in the hard rock, the bearing capacity shows the characteristics of rapid decline; no matter what kind of composite rock, when the specimen has surface cracks and the crack angle increases, the roof bearing capacity will gradually decrease. When it is not affected by cracks, the bearing capacity of composite roof is consistent with the weighted average strength of rock stratum.

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基本信息:

DOI:10.13301/j.cnki.ct.2026.02.006

中图分类号:TD327.2

引用信息:

[1]陈晓宜,杜广盛,王超.考虑表面裂隙煤矿巷道复合顶板破坏特征研究[J].煤炭技术,2026,45(02):29-35.DOI:10.13301/j.cnki.ct.2026.02.006.

基金信息:

山西省高等学校科技创新计划项目(2024L392); 博士毕业生及博士后研究人员来晋工作科研经费项目(2024PT-07)

投稿时间:

2025-08-13

投稿日期(年):

2025

终审时间:

2025-11-03

终审日期(年):

2025

审稿周期(年):

1

发布时间:

2026-02-03

出版时间:

2026-02-03

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