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对于倾角在30°以下、真厚度为5～20米的缓倾斜中厚矿体,若按矿岩稳固程度分类,总的可分为矿体及顶底盘均稳固(稳固矿岩),矿体稳固而顶底盘不稳固,矿体及顶底盘均不稳固(不稳矿岩)等类型。由于矿体中厚、倾角缓,致使采矿方法的选择较为复杂。而一般矿山在未开拓前,采矿方法又难以在本矿体内通过试验后再选定,因而在矿山初步设计阶段,如何根据开采技术条件(厚度、倾角、矿体及顶底盘稳固程度)正确地选择采矿方法,颇值得研究。本文拟对这类矿体的采矿方法选择进行探讨。
For moderately inclined moderately thick ore bodies with a dip below 30 ° and a true thickness of 5 to 20 meters, if classified according to the degree of solidity of the ore, the ore body and the top plate are generally classified as stable (stable ore) and ore body Solid and top chassis is not stable, ore and top chassis are not stable (unstable rock) and other types. Due to the thick ore body, dip angle, resulting in the choice of mining methods is more complicated. However, it is difficult for the mining method to pass the test before being selected in the orebody before the general mine is opened up. Therefore, according to the mining technical conditions (thickness, inclination, ore body and the stability of the top plate) in the preliminary design phase of the mine, Choose mining methods, quite worth studying. This article intends to discuss the choice of mining methods for such ore bodies.