The practice in Antaibao Surface Coal Mine shows that the three measures can well solve the problems of disproportion in inner dumping space and the increase of transportation distance.

• 在安太堡露天煤矿进行了实践，结果表明：采区间搭桥、反向内排和筑路式组沟开拓运输系统在大型近水平露天煤矿转向期间有效地解决了内排空间不均衡的问题，缩短了剥离物的运输距离。