露天矿境界有时由于探明了新的补充储量而要扩大,这项工作,通常是在露天矿的整个边帮或边帮的个别区段快要达到最终位置时才进行,此时,露天矿的边帮仅留有很窄的工作平台和运输平台。为了建立开采矿床新区段的正常的矿山技术条件,要扩宽现有的工作平台或建立新的工作平台。卡里玛凯尔斯克、日丹诺夫斯克、柯恩拉德、索尔 Open-pit mines sometimes expand due to the discovery of new supplementary reserves. This is usually done when the entire side of the open-pit mine or individual sections of the sidewalks are about to reach their final location, Edge help only a very narrow work platform and transport platform. In order to establish the normal mining conditions for the new section of the mining deposit, the existing working platform or the new working platform should be expanded. Kalimakilk, Nikolaevsk, Cohn Rad, Sol