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大型煤矿在开挖后,巷道的变形与稳定性变化成为煤矿安全性研究的基础。本文以河南永煤集团地下煤矿综放面布置的具体条件,进行现场实测,根据测量结果对综放回采巷道在围岩开挖过程和回采过程中的岩体表面和内部变形进行了综合研究,从而得出巷道围岩在开挖和回采期间的变形规律。研究结果对改善大型地下工程巷道的维护和煤矿安全生产有着积极的意义。
Large-scale coal mines in the excavation, roadway deformation and stability changes as the basis for the study of coal mine safety. In this paper, based on the specific conditions of the layout of the fully mechanized coal caving face in the underground coal mines of Yongmei Group in Henan Province, the field measurements were carried out. Based on the measured results, the rock mass surface and internal deformation in the process of surrounding rock excavation and during the recovery process were comprehensively studied , So as to derive the law of deformation of surrounding rock during excavation and mining. The research results have a positive meaning to improve the maintenance of roadway in large-scale underground engineering and coal mine safety production.