【摘要】 运用FLAC3D建立综放工作面联络巷密闭墙数值模型。研究不同构筑位置以及不同宽度密闭墙体情况下,密闭墙体垂直应力及其横向与纵向变形规律,确定合理的密闭墙构筑参数。结果表明,当联络巷长度为20 m,密闭墙合理的构筑位置为距离巷道交叉处5 m;合理的密闭墙体宽度为2 m。更多还原

【Abstract】 Establishing a numerical model of airtight wall in crossheading of fully mechanized caving face by using FLAC3 Dsoftware to study the law of SZZ and the amount of deformation of airtight wall under different situations of position and width.The results show that the reasonable position to build a airtight wall is 5 m away from the intersection of the tunnel,and the width of airtight wall should be 2 m, when the length of airtight wall is 20 m.更多还原