论文部分内容阅读
本文提出了一个适合于用“穷举法”进行露天开采方案选择的煤岩量计算的计算机方法——相交图形法。它为露天采矿设计提供了一套较实用的煤岩量计算的数学模型。相交图形法以三维模块矿床模型为基础,把露天矿最终境界和每个开采阶段上不同质点最终采深为顶点所产生的圆台视为若干子集,则每个开采阶段由若干圆台与露天矿最终境界的交集组成。系统中圆台文件的产生采用了模板技术,根据不同需要预先制定一套模板形成圆台文件。由于圆台的母线在任意水平可变夹角,故可实现纵向变坡。同时,根据在最深水平上,不同质点所属的开采阶段实现平面转向。系统在采用模板技术的基础上,又用异区隔离法准确地实现了露天矿境界内不同方位、不同深度的变坡,使计算精度提高。
This paper presents a computerized method suitable for the calculation of coal and rock mass using the “exhaustive method” for the selection of open pit mining schemes - the Intersection Graph method. It provides a more practical mathematical model of rock mass calculation for surface mining design. Intersection graph method is based on the 3D module deposit model, and treats the final state of the open-pit mine and the final depth of the different particles on each mining stage as the vertices to form a number of subsets. Each mining stage is composed of a number of round tables and open- The final state of the intersection of composition. Round table file system used in the template technology, according to different needs in advance to develop a template to form a round table file. Due to the circular table busbar at any level of variable angle, it can achieve longitudinal slope. At the same time, according to the deepest level, different particles belonging to the mining phase to achieve plane steering. Based on the template technology, the system also uses the different area isolation method to accurately realize the change of slope with different azimuths and depths in the open-pit mine boundary so that the calculation accuracy is improved.