论文部分内容阅读
采金船开采砂矿时由于所用采矿方法和剥采岩石方法的不同,在步距间和进路间盲采带、改变移动方向时在工作面边角和边帮等处形成开采损失。据В.Г.列什科夫的资料,采金船开采砂矿时步距间盲采带的砂矿损失占1.95％。考虑到底床附近金属含量一般都比较高,而损失率却较大(据В.Г.列什科夫的资料为5.63％)。步距间盲采带的损失率取决于采金船类型、采挖深度(铲斗框架倾角)、步
Due to the different mining methods and methods of stripping rock, the gold mining vessel mining the sand with blind mining belt between the steps and between the ways, and changing the moving direction, form mining loss at the working face corner and the side edge. According to В.Г. Lieškov’s data, the loss of sand deposits during the mining of sand pits by gold mining vessels from time to time was between 1.95%. Taking into account the bed near the metal content is generally higher, but the loss rate is greater (according to В.Г. Shishkov’s information was 5.63%). The rate of loss of blind belts between steps depends on the type of gold mining vessel, depth of excavation (bucket frame inclination), step