深埋矿体移动带三维圈定方法研究

Research on 3D delineation method for movement zone of deep ore body

针对深埋矿山开采移动带二维圈定方法工作量大、精度低且难以满足日益增长的经济效益需求的问题,提出了一种深埋复杂矿体移动范围三维确定方法。结合纱岭金矿千米深井工程实例,在移动范围确定过程中,借助先进的3D建模技术获得三维矿山模型。该模型可以实现各类地质体的可视化,直观地展示其形态与产状,清晰地反映各构成因素间的相互关系。在3D模型中截取的特征剖面与经典移动带圈定岩移参数获取方法相结合,能轻松获得各特征剖面上的岩移参数值。通过给定的岩移参数值进而确定各特征剖面上的地表移动边界点,将各移动边界点连接即可实现矿山移动范围的圈定。研究结果表明,基于三维地质建模技术的移动带圈定方法合理可行,确定的纱岭金矿地表移动带能够兼顾安全生产与经济效益,为矿山生产开发奠定了有益基础,为类似矿山提供了有益借鉴。

For the heavy workload,low precision and the difficulty to meet the demand of the economic benefits growing problem of the deep mining technique delineating mobile with 2D volume,this paper proposed a kind of 3D determining method for the mobile scope of deep complex ore body.Combining with Kilometer Deep Well project in Shaling gold mine example,3D model of the mine was obtained through the help of advanced 3D modeling technology in the process of moving range.This model can realize all kinds of geological visualization,intuitively show of the shape and occurrence,clearly reflection of the relationship between different factors.It is easy to get the rock movement parameter values of each section on the characteristics with the combination of the method of characteristic section in the 3D model and classic mobile rock movement parameters acquisition method.Through given rock movement parameter values to determine the moving boundary points on the surface of each characteristic section and connection of each moving boundary point,mine moving range was confirmed.The research results indicated that based on the feasibility of 3D geological modeling method for delineating mobile belt,Shaling gold mine surface movement zone can take count of both safety and economic benefit,which can lay a good foundation for mine production development and provide beneficial reference for the similar mines.