论文部分内容阅读
地下采空区的存在对上部露天开采安全生产构成了巨大威胁,构建空区三维实体模型对制定生产计划和保障生产安全具有重要意义。在利用TIN模型建立空区三维包络线框模型基础之上,采用三棱锥体作为基本体元构建空区三维实体模型。针对建模过程中,包络线框模型分解凸化现象,将同性相斥原理运用到体元合并中,构建空区的三维实体模型。最后,在vs2005开发平台上实现算法并结合三道庄露天矿进行可行性验证。结果表明,该方法能够完成矿山复杂空区实体建模任务,为空区处理设计提供了技术支撑。
The existence of underground gobs poses a great threat to the safety of the open pit mining. Building a three-dimensional solid model of open space is of great significance to the formulation of production plans and the guarantee of production safety. On the basis of establishing the 3D envelope model of the empty area by using the TIN model, a three-dimensional pyramid is used as a basic element to construct a three-dimensional solid model of the space. In the process of modeling, the envelope-box model is decomposed to convexity and the principle of homosexual repulsion is applied to voxel merging to construct a three-dimensional solid model of the empty space. Finally, the algorithm is implemented on the vs2005 development platform and the feasibility is verified by combining with Sandaizhuang open-pit mine. The results show that this method can fulfill the solid modeling task of the complex mine area and provide technical support for the design of the empty area.