露天矿山工程中,某一工程的空间和时间关系发生了变化,必将导致后续工程发生联锁变化,特别是地质条件的变化、生产技术的变化、国家对有益矿物需求量的大幅度变化时,都将使原技术设计的进度计划无法再续继执行,这就要求露天矿制订新的阶段性规划来指导生产。国家也经常要求露天矿编制五年、十年、改建、扩建、远景规划。 In open-pit mine project, the change of space and time of a project will surely lead to the interlocking changes of subsequent projects, especially the change of geological conditions, the change of production technology and the significant change of the demand for beneficial minerals by the state , Will make the original technical design of the progress plan can not be continued after the implementation, which requires open-pit mine to formulate a new stage plan to guide the production. Countries also often require open-pit mines prepared five years, ten years, alterations, expansion, long-term planning.