平行剖面法用棱柱和截锥公式计算块段体积注意的问题

Problems Which Should be Paid More Attention in Calculating the Block Volume Based on Prism and Truncated Cone Formula by Using Parallel Section Mehtod

用平行剖面法计算资源/储量时,若矿体块段在相邻两剖面上均有面积,且控制两面积的工程间距或控制每个剖面面积的工程见矿平均厚度不相等的情况下,使用棱柱体公式计算块段体积,或相邻两剖面上面积形状不相似的情况下,使用截锥体公式计算块段体积,均存在一定的误差。而拟柱体公式则是精确计算块段体积的通用公式,其使用不受上述条件的限制。因此,在这种情况下,建议限制或停止使用棱柱体和截锥体公式,提倡统一使用拟柱体公式来计算矿体块段的体积。

When calculating resources / reserves by using parallel section method,if the block of the ore body has an area in both adjacent sections,and engineering interval which controls two area of the project and the average thickness of the project which controls each section are not equal,or two adjacent section areas do not have the similar shape,if using the prism formula to calculate the block volume,there will be some errors. While the quasi column formula is a general formula for calculating the volume of the block. It is not limited by the above conditions.So,In this case,it is suggested that the prism and truncated cone formula should be stopped using,while quasi column formula should be widely used to calculate the block volume of the ore body.