The high level tectonic stress exerts negative influence on the stability of the mine bed and its slope , and the excavation should be arranged in the direction of N70 ° E for convenience .
矿床水平高构造应力对矿床底板及其边坡稳定性具有不良影响，矿床开采掘面轴线走向应沿N70°E方向布设趋佳；
n70