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开采急倾斜金属矿床时,广泛地采用房式采矿法、联合采矿法以及带补偿空间的阶段强制崩落采矿法的各种方案。采用上述采矿法时,房间矿柱经常的过早破坏,这是因为设计时房间矿柱的尺寸选得不当。所以,寻求具有科学根据的计算矿柱强度的方法有很大的意义。遗憾的是,关于开采急倾斜金属矿床时房间矿柱的强度计算方面的著作还很少。目前,建立能够广泛应用而且还能得到足够可靠参数的近似计算方法,将具有实际的意义。本文是阐述房间矿柱的计算方法,其主要内容如下:1.按地压条件,确定保证矿柱稳定的连
In the mining of steep metal deposits, a wide range of options are available for room mining, joint mining and forced caving mining at phases of compensation. When using the mining method described above, the pillars of the room are often prematurely destroyed, because the dimensions of the pillars in the design room are not properly selected. Therefore, to find a scientific basis for calculating the strength of pillars of great significance. Unfortunately, few works have been done on the calculation of the strength of pillars in the room when mining steep metal deposits. At present, it is of practical significance to establish an approximate calculation method that can be widely used and can obtain enough reliable parameters. This article describes the method of calculating the ore column in the room, the main contents are as follows: 1. According to the pressure conditions, to ensure that the stability of the ore column