Surface Mine System Simulation and Safety Risk Management

Modem surface mines, either mono-system or multi-systems, need a large fleet of equipment consisting of excavators, loaders, haulers and auxiliary machines. Presently, the complexity of the system, the interference between sub-systems and the lag in management skills has been a bottle neck for improving productivity of the system. Based on the fact that the traditional tools for safety analysis have been insufficient to evaluate systematically and dynamically the safety risks, this paper tries to create a virtual reality tool consisting of human, machine and mines, using Pro/E and the 3D MAX software in order to evaluate visually the operations of typical mining equipment, such as the bucket wheel excavator （BWE）, the shovel, the truck and the dragline. Within this virtual world, the behavior of the system, such as interaction, interference and potential risk can be replayed and reviewed visually. The objective of the study is to identify the critical safety issues of the system and to provide a convenient and powerful tool for safety training and safety management.

露天开采工艺及其风险状况的模拟

露天开采电铲卡车工艺、大型轮斗工艺和拉铲工艺都具有大型设备众多、组织管理复杂、安全隐患大等特点,并且后两者还是国内较新的工艺,这就使得高效直观的生产工艺展示以及安全培训技术手段和作业风险性研究,成为上述工艺能否成功应用的制约因素。本文研究了基于虚拟现实技术,应用Pro-E和3 D MAX软件,对露天开采工艺及其风险状况进行模拟的技术途径,建立了大型露天矿人-机-矿山虚拟环境,直观形象的模拟了轮斗、单斗卡车和拉铲三种工艺流程,同时可以进行重点风险部位的动态识别。系统为职工生产与安全培训提供了一个良好的平台。

矿山地表三维模型实时重建方法的研究

由于地表数据量庞大,矿山地表模型的实时重建是个难题。本文根据矿山开采的特点,通过数据简化、分块、闭合多边形提取和闭合多边形三角化等步骤,较好地解决了矿山大规模复杂虚拟地表模型的动态生成问题。研究和实验表明,该方法简单、快捷,行之有效。

基于Surpac矿山设计软件及虚幻引擎实现的矿山虚拟现实漫游系统

基于谷歌公司Daydream虚拟现实平台实现了一种露天矿山虚拟现实漫游系统,展示了虚拟现实技术在矿业设计领域应用的可能性。虚拟现实过程主要包括:首先,采集矿山的地形地质等三维数据,利用Surpac软件进行矿山露天设计;其次,将得到的最终露天境界和相关三维模型导入到游戏引擎中,并进行必要的场景优化;最后,利用C++语言编写脚本实现基本的虚拟现实交互功能,配合虚拟现实头显实现矿山虚拟现实漫游功能。该系统在矿山设计及效果展示上有巨大优势,能够真实呈现设计结果,提高设计效率,具有广阔的应用前景。该系统目前使用的移动平台虚拟现实技术并不成熟,延迟率较高,分辨率较低,易造成眩晕,仍有进一步提高的空间。