露天矿分区过渡期间合理开拓运输系统选择

以平朔煤炭工业公司安太堡露天矿为例，分析了开采近水平及缓倾斜矿床露天矿分区开采过渡期间开拓运输系统的特点、可能出现的问题和解决途径，提出了寻求该时期开拓运输系统优化的思路和方法．分区开采过渡期间，应根据可利用排弃空间的容量和位置，为不同区段的剥离物寻找最佳的运输通路．为减小运距，可适当加快旧采区局部工作帮的推进，使其提前靠帮，并在该处建立新的排土区域．过渡期间应尽早进行新采区的缓帮延深工程，并充分利用条件有利的外排土场．

Optimal Selection of Pit Haulage System in Transition Period for Mining-In-Areas

Taking ATB Surface Mine, Pingshuo Coal Company as an example, the feature of pit haulage system was analyzed in the transition period for mining-in-areas at flat-bedded or gently-inclined deposit. The idea and approach for optimum pit haulage system were put forward. According to the possible dumping sites and their volumes, the best haulage paths for overburden from different bench areas were optimized; other measures were suggested such as faster advancing the upper benches in the old mining area and stating, the stripping work as earlier as possible in the new mining area.