摘要
介绍了某矿井柱开采后井筒围岩空间附加应力观测情况。得出了各空间附加主应力值、方位角及倾角随工作面推进的变化规律。观测结果表明 :井筒上部围岩体在铅垂方向上受张应力影响 ,而井筒底部围岩体所受应力的大小和性质与工作面的布置方式、开采顺序以及井筒与工作面的相对位置有关。
This paper introduced the shaft stress measurement of a mine in detail when its shaft pillar was mined and obtained the laws of wariation of the value,azimath angle and dip angle of 3-D additional principal stress,as face advanced.The results indicate:rock mass of shaft wall in the upper part of the shaft suffered from the effects of tensile stress in plumb line direction,the properties and amount of stress of rock mass of shaft wall in the shaft bottom are related to face layout,mining sequence and the relative position between the face and shaft.
出处
《山东科技大学学报（自然科学版）》
CAS
2000年第1期41-44,共4页
Journal of Shandong University of Science and Technology(Natural Science)
