深部向斜构造区煤泥岩巷道围岩变形特征与控制技术

doi:10.11799/ce202407011

摘要/Abstract

摘要： 针对深部向斜构造区煤泥岩大巷围岩控制难题,以水峪煤业采区运输巷为研究对象, 采用现场调研、数值模拟和理论分析方法,分析了深部煤泥岩巷道围岩位移和应力分布特征,研究了适用于深部煤泥岩巷道围岩的内外承载体环形协同控制技术主要结构和原理,构建了约束混凝土支架和围岩耦合模型,分析了内外承载结构体作用下深部煤泥岩巷道围岩位移和塑性区分布特征, 并在现场进行了工业性试验,应用效果良好,对类似大巷围岩稳定性控制提供一定参考。

关键词: 煤泥岩巷道, 向斜构造区, 深部矿井, 内外承载体结构, 围岩控制

Abstract: Aiming at the problem of controlling the deep roadways of coal and mudstone surrounding rock, the transportation roadway of a coal mine was chosen as the research object, combined with field investigation, numerical simulation, and theoretical analysis methods, the displacement and stress distribution characteristics of the surrounding rock of deep roadways within coal and mudstone layers were analyzed. The main structure and principle of the inner and outer bearing structures circular collaborative control technology applicable to the surrounding rock of deep roadways within coal and mudstone layers were studied. A constrained concrete support and surrounding rock coupling model was constructed, and the displacement and plastic zone distribution characteristics of the surrounding rock of deep roadways within coal and mudstone adopting the inner and outer bearing structures were analyzed. The industrial tests were conducted and the controlling effect is good, providing a certain reference for the stability control of surrounding rocks in similar roadways.

中图分类号:

TD353

李生亚, 严红, 裴晖, 等. 深部向斜构造区煤泥岩巷道围岩变形特征与控制技术[J]. 煤炭工程, 2024, 56(7): 67-72.

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