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汽车装载量的抽测,是测量监督的一项任务。我矿最初是在装满矿(岩)石的车箱内,测量3个垂直剖面,计算出矿(岩)石体积,再乘以相应比重,得出矿(岩)石重量。为了保证人身安全,后来改为将矿(岩)石翻在地面上,沿着同一方向,在矿(岩)石堆上测量3～5个相互平行的垂直剖面,计算出矿(岩)石重量。此法虽然比较准确,但工作量很大,需三四个人进行丈量,而且作业时间较长,对生产有些影响。考虑到矿(岩)石从车斗内自由滑落后,在地面上堆起的形状近似于锥体,故只要丈量出矿(岩)石堆底部近似直径和堆高即可求出体积。由于矿(岩)石堆底部直径难以直接丈量,可通过测量矿(岩)石堆底部周长,并将此周长近似地视作
The sampling of car load is a task of measurement supervision. Mine was originally in the car filled with rock (rock) in the box, measuring three vertical profiles, calculate the rock (rock) volume, multiplied by the corresponding proportion, derived rock (rock) weight. In order to ensure personal safety, the rock was later turned over to the ground instead. In the same direction, 3-5 vertical sections parallel to each other were measured on the rock mass, and the rock mass was calculated weight. Although this method is more accurate, but the workload is very large, requiring three or four individuals to measure, and a longer working hours, some impact on the production. Taking into account the rock (rock) free fall from the car after the bucket, the shape of the pile on the ground similar to the cone, so as long as the mine out of rock (rock) at the bottom of the approximate diameter and pile height can find the volume. Due to the difficulty of measuring the diameter at the bottom of a rock mass, the circumference of the bottom of the rock mass can be measured and the perimeter can be approximated as