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缓倾斜和倾斜矿床已广泛采用矿房法和房柱法开采,这就有可能在整个工艺过程中广泛采用生产能力高的自行式设备。但这些方法的特点是矿石损失大,且随开采的延深而不断增加,增加的程度由采用矿柱支护顶板岩石控制地压的方法而定。在米尔加里姆赛铅锌矿,采深230～240米时,矿柱中的矿石损失为20～24％,而采深达500米时,矿石损失增加到40～45％。在杰兹卡兹甘地下矿损失的矿石占报销储量的25％左右。
Gentle tilting and tilting deposits have been extensively mined using both mining and post-mortem mining methods, making it possible to extensively adopt self-propelled equipment with high productivity throughout the process. However, these methods are characterized by large ore loss and increased with the depth of the mining, the degree of increase depends on the method of rock pressure control using roof pillar rock. At the Mill Galimsay lead-zinc mine, ore losses in ore pillars are 20-24% at depths of 230-240 m, while ore losses increase to 40-45% at mining depths of 500 m. Ore losses at the Gezkazgan underground mine account for about 25% of reimbursement.