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作者研究开发出了露天矿三维设计算法，以便在已知的地质、工程以及经济条件下求得利润最大的露天矿形态．研究了正移动推及动态锥算法，并且提出了其改进算法．前一种算法的改进办法是在算法中添加一个检验过程，检验圆锥中是否包含有负值块段，是否有可能填补圆锥中的那些负值块段而不干扰圆锥边坡用这一几何约束条件。后一种改进的动态锥算法按每一个块段分别与相邻的12个块段相结合，选取利润最大的结合体，最终求出可使总利润最大的路径．本文研究上述两种算法，并结合处在规划阶段中的某大型露天铜矿进行计算，给出了计算结果．
The authors developed a three-dimensional design algorithm for surface mine operations to find the most profitable open-pit mine under the known geological, engineering and economic conditions. The positive moving and dynamic cone algorithms are studied, and the improved algorithm is proposed. An improved algorithm of the former algorithm is to add a test to the algorithm to test whether the cone contains a negative block and whether it is possible to fill those negative blocks in the cone without disturbing the conical slope with this geometric constraint condition. The latter improved dynamic cone algorithm combines each block segment with 12 adjacent block segments to select the combination with the most profit and finally find the path that can maximize the total profit. In this paper, the above two algorithms are studied and calculated with a large open-pit copper mine in the planning stage, and the calculation results are given.