洼东煤矿软岩巷道支护方式选择

结合山东龙口洼东煤矿软岩巷道支护实践,通过主要含煤地层的物理力学性质分析和软岩岩层的工程地质特征研究,指出随着开采深度的增加,巷道围岩应力和变形量明显增大、返修率高,成为影响巷道层位及其支护方式选择的主要因素,应采取符合围岩工程地质特征和力学机制特点的联合支护方法取代单一支护。研究结果对软岩巷道支护具有一定的指导意义。

SELECTION OF SOFT ROCK ROADWAY SUPPORTING METHODS IN THE WADONG COAL MINE

Combining the practices from soft rock roadway supporting in Wadong Coal Mine, with analysis on the physical mechanic properties of the main coal-bearing layers and the engineering geological characteristics of the soft rocks, the authors pointed out that along with the increasing of exploitation depth, stress and deformation of adjacent rock of roadway obviously increased, which was the main factors influencing the selection of roadway layer and related supporting patterns. Therefore, an associated supporting pattern accord with the engineering geological characteristics of the adjacent rock should be selected.