一、試驗的意义我矿是一个較大的露天矿山,采掘过程是以大、中爆破为主,因而炸藥消耗特別大。1958年炸藥消耗占剝离成本的40％,因此寻求一种既使宜而又具有相当威力的炸藥来代替現用二号硝铵炸药(或部分),以降低采掘成本是具有重大意义的。二、試驗概况为达到上述目的,我們共进行了10种物質代替炸藥(或部分)的試驗。根据各种爆破性試驗与研究,其中以硝酸铵加柴油(或发柴油)及炸藥加入石英砂的兩种效果最好。但硝酸銨來源困难,所以我矿以砂子代替部分炸藥,进行几次試驗,其效果并不比炸藥差,特别是 First, the significance of the test I mine is a large open pit mine, mining process is based on large, medium-sized blasting, which consumed explosives in particular. In 1958, the cost of explosives accounted for 40% of the cost of stripping. Therefore, it is of great significance to seek an appropriate and relatively efficient explosive to replace the existing No. 2 ammonium nitrate explosive (or part thereof) to reduce the cost of mining. Second, the test profile To achieve the above purpose, we conducted a total of 10 substances instead of explosives (or part of the test. According to a variety of explosives test and research, including ammonium nitrate plus diesel (or diesel) and explosives added to the best two quartz sand. However, the source of ammonium nitrate is difficult, so I mine to replace part of the explosives with sand, several tests, the effect is not worse than the explosives, especially