传统资源量估算方法在第三类矿产中的应用与对比研究:以宁夏某建筑用石灰岩矿山为例

摘要

第三类矿产资源量估算一般采用传统资源量估算方法,但是不同方法估算的结果相差较大.本文以宁夏某建筑用石灰岩矿山为例,利用AutoCAD软件建立了矿山可采范围模型并测量了资源量,通过与利用平行断面法、水平断面法和水平投影地质块段法估算的资源量结果进行对比,发现平行断面法误差最大,水平投影地质块段法次之,水平断面法最小.研究结果表明:对于矿体形态简单矿山,上述三种方法均可采用,一般宜采用平行断面法或水平投影地质块段法;对于矿体形态复杂矿山,应该优先采用水平断面法,并根据矿体形态变化,选择合适的水平断面.%Reserve estimation of the third kinds of minerals generally use traditional reserve,but the result of estimation in different methods are lager.In this paper,taking a limestone mine used in construction in Ningxia as an example.The model of recoverable mining area is established and the amount of resources is measured by AutoCAD software.The results are compared with those estimates of resources by using parallel section method,horizontal section method and horizontal projection geological block method.There is a discovery,error with parallel section method is the largest,horizontal projection geological block method is smaller,horizontal section method is the smallest.The research results show that The three methods can be used for the mine which has simple ore body.Generally,the parallel section method or horizontal projection method should adopted;the mine which has complex ore body should prefer horizontal section method.And should select appropriate level section according to ore body form varied.