确定矿山巷道初始地应力方法的研究

本文提出了一种在矿山地区确定初始地应力的新方法。根据本文提出的方法,只要在三个相互交叉的圆形巷道中量出过洞周特定点的直径两端的径向相对位移值,即可计算这些量测巷道所在地段地层的初始地应力。文中给出了算例,并对算例作了验证。木文提出的方法也可为勾划矿山地区初始地应力的分布规律提供有价值的资料,并可用于确定其它地下工程围岩中的初始地应力。

A New Method for Determining the Initial Ground Stresses in Mining Area

This paper gives a new method for determining the initial ground stresses in mining area. According to this method, if we have measured the radial relative displacements between two ends of the diameters through some special points at circumferences in three intercrossing circular galleries, which are close to each other, the initial ground stresses can be determined at this area of mine. An example is given to verify this method. This method can also offer useful data for determining the initial ground stresses approximately in all mine area and can be used to determine the initial ground stresses for other underground engineerings.