扩切眼施工中矿层巷道破碎区的碎胀变形分析

Fragmentation and Deformation Analysis of Broken Area of Mine Roadway in Open-cut Construction

扩切眼施工是确保开采高效率设备系统成功安装的重要手段,但在扩切眼施工中,容易导致切眼围岩发生变形,从而导致巷道变形碎胀,影响开采的顺利、安全进行。本文通过分析扩切眼施工中巷道破碎区形成及碎胀变形问题,以期为巷道维护提供技术参考。

Enlarged cutting hole construction is an important means to ensure the successful installation of high-efficiency equipment system for mining,but in the enlarged cutting hole construction,it is easy to cause the deformation of the surrounding rock of the cut hole,leading to the deformation and fragmentation of the roadway,affecting the smooth and safe mining.This paper analyses the formation of broken area and dilatation deformation of roadway in the construction of enlarged cut hole,in order to provide technical reference for roadway maintenance.