在大型近水平及缓倾斜煤田露天开采时，通常划分多个采区依次开采。在新旧采区接续时，存在采区转向过渡方式选择、采区接续位置确定、接续期间开拓运输系统布置、接续期间工程量搭配等技术难点。本文以蒙东能源控股有限责任公司西二号露天煤矿为例，分析了4种采区转向过渡方式，确定采用直角缓帮转向的过渡方式进行采区转向过渡。采用露天矿SMCAD软件进行三维地质建模，交互式设计工作帮，模拟工程位置，精确计算相应的工程量，提出了4种两个采区间的接续方案，揭示了4种方案的工程量搭配和过渡时间等变化规律，综合分析确定了合理的采区接续方案。
A large-horizontal and gently inclined coal mine is usually divided into several mining areas and is mined in one surface coal mine area at a time in proper order. The difficulties of connecting the old and new mining areas consist of the steering transition mode selection, the connecting position determination, the layout of the pit haulage system and the assignment of engineering. In this paper, three kinds of steering transition programs are analyzed and compared to determine a steering angle gentle slope transition program. In the determination of the next mining engineering location, the SMCAD software is used for 3D geological modeling, with interactive design of working slope, and the engineering position is simulated, with accurate calculation of quantities accordingly; four kinds of two section connecting scheme are proposed, considering the production stripping ratio and the mining transition time to finally establish the mining transition scheme.
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