成本价格变化对露天煤矿最终境界的影响  

Effects of Changing Cost and Price on Final Pit of Open-pit Coal Mine

作　　者：王青[1] 胥孝川[1] 顾晓薇[1] 郑友毅[2] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819 [2]中国煤炭科工集团有限公司,北京100013

出　　处：《东北大学学报（自然科学版）》2013年第5期712-714,722,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50974041);教育部博士学科点专项基金资助项目(0042120040);辽宁省自然科学基金资助项目(201102065);教育部新世纪人才支持计划项目(NCET-11-0073)

摘　　要：基于经济合理剥采比准则以及地表模型和柱状煤层模型,应用CoalDesign软件系统对内蒙古某露天煤矿进行最终境界设计,得出了不同经济技术条件下的最终境界的形态.分析讨论了最终境界随成本价格变化的情况.实践表明,以当前技术经济参数为基准,原煤价格上升10%,原煤开采量增加7.9%,岩石剥离量增加11.5%,第四纪层剥离量增加6%,境界总体积增大9.5%,不考虑基建投资,利润值增加238%;开采成本降低10%,原煤开采量增加8.4%,岩石剥离量增加12.3%,第四纪层剥离量增加6.5%,境界总体积增大10.2%,不考虑基建投资,利润值增加245%.可以看出最终境界对成本价格的灵敏度很高,境界分析对矿山生产决策者做出正确决定有重要的参考价值.Based on the criterion of economic strapping ratio, surface model and columnar seam model, CoalDesign software system was used to optimize the final pit of an open-pit coal mine in the Inner Mongolia. Some final pits were obtained under different technical and economic conditions. The case of final pit changing with cost and price was analysed. In practice, taking current technical and economic parameters as benchmark, when the price of raw coal increased by 10% , it resulted in raw coal yield increasing by 7.9% , stripped rock volume increasing by 11.5% , the stripped quaternary layer volume increasing by 6% , the boundary total volume increasing by 9.5% and the profit value increasing by 238% without considering infrastructure investment. When the cost of mining lowered by 10% , it resulted in raw coal yield increasing by 8.4%, stripped rock volume increasing by 12.3%, the stripped quaternary layer volume increasing by 6.5%, the boundary total volume increasing by 10.2% and the profit value increasing by 245% without considering infrastructure investment. The result showed that the final pit is influenced by price and cost greatly. Boundary analyses had an important reference value to making good decisions.

关 键 词：露天煤矿 境界优化 成本 价格 经济合理剥采比 

分 类 号：TD216[矿业工程—矿井建设]