急倾斜相邻矿体的采动对夹层稳定性的影响

急倾斜相邻矿体开采过程中夹层稳定性的研究是一个新的课题. 文中以会宝岭铁矿为工程背景，通过数值模拟和现场监测技术，揭示了在开采扰动作用下矿岩的应力分布情况和夹层的变形情况.发现在开采后夹层上部所受的应力会略微的降低，而在底部应力又会相对集中，此处易于引发夹层的破坏.在临近矿体的围岩中会产生应力沉降区，而在围岩深部又会形成应力增高区. 夹层主要呈“弓”字型发生弯曲变形，且下盘岩石的变形总量要大于上盘岩石，合理的回采顺序应该是从夹层上盘向下盘进行开采. 所得研究成果对类似矿山的生产开采有一定的参考价值. 

Effect of steeply inclined adjacent ore body on interlayer stability

It is a new topic to research the interlayer stability of the steeply inclined adjacent orebody in the mining process. The HuiBaoLing iron mine was selected as an engineering background. The stress distribution of ore-rock and the deformation of the interlayer in the mining disturbance were revealed through the numerical simulation and field monitoring techniques. It is found that the stress would be slightly decreased than before in the upper part of the interlayer after mining, however, the stress would be relative concentrated and slightly increased in the bottom of the interlayer, and in these places it is easy to cause the deformation and destruction of the interlay. In the surrounding rock of the ore body, it generated a stress decrease zone, and in the deep surrounding rock that away from the ore body, it generated a stress increased area. The interlay is mainly in a shape of"bow"shape and bending deformation after mining, and the total deformation of the lower-wall rocks than upper-wall rock, so the reasonable mining sequence should be from the upper-wall to the lower-wall of interlay. The results provide some reference value for the similar mines.