目前,我国地下金属矿山已开始用铲运机出矿,从一些矿山使用情况来看,铲运机出矿的费用还是比较高的,其主要原因是:(1)进口铲运机价格昂贵,作业率低,折旧费高。(2)轮胎寿命低,每吨矿石分摊的轮胎费用高。但是,这几年来,矿山部门最关注的是废气净化和备品备件,而对降低轮胎费用却重视得不够。因此,在延长轮胎使用寿命上没有取得应有的进展。表1列举了几个矿山轮胎消耗情况,由此可以发现: At present, underground metal mines in our country have started to use the scraper to mine. According to the usage of some mines, the cost of the scraper is still relatively high. The main reasons are as follows: (1) The imported scraper is expensive, Low operating rate, high depreciation costs. (2) low tire life, high tire cost per ton of ore. However, in the past few years, the mining sector has been most concerned with the purification of exhaust gas and spare parts, but has paid insufficient attention to reducing the cost of tires. Therefore, to extend the service life of the tire did not make due progress. Table 1 lists several mine tire consumption, which can be found: