排序方式: 共有11条查询结果,搜索用时 15 毫秒
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采空区精密探测技术应用研究 总被引:5,自引:0,他引:5
矿产资源地下开采形成的大量采空区是危及矿山安全的主要灾源之一.准确掌握空区形态、大小及其变化是控制因空区引发的灾害及优化采矿设计等的重要基础性工作.介绍了已在我国矿山首次应用并获得成功的空区三维激光探测系统(3D Laser Cavity Monitoring System),简称CMS系统.阐明了该系统的基本构成和工作原理,并对其在某矿山空区三维形态的精密探测、采空区体积计算、采空区顶板面积计算、采空区实际边界确定、采空区剖面自动生成及辅助矿柱回采爆破设计方面的应用研究与实践进行了介绍.实践表明,CMS的成功应用为我国矿山空区动态监测及安全控制等相关研究开辟了一条新的有效途径. 相似文献
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城市地下空间开发效益分析 总被引:5,自引:1,他引:4
城市地下空间的应用已经在世界范围内成为一种潮流,但对城市地下空间效益的评估目前尚没有统一的规范和方法.作者从地下空间和地面建筑的对比出发,针对城市地下空间效益评估中所应注意的关键问题进行探讨;在分析了城市地下空间整个生命周期中各种直接效益的基础上,讨论了其在环境、防灾和社会效益上的间接作用. 相似文献
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Deposit 3D modeling and application 总被引:25,自引:1,他引:25
By the aid of the international mining software SURPAC, a geologic database for a multi-metal mine was established, 3D models of the surface, geologic fault, ore body, cavity and the underground openings were built, and the volume of the cavity of the mine based on the cavity 3D model was calculated. In order to compute the reserves, a grade block model was built and each metal element grade was estimated using Ordinary Kriging. Then, the reserve of each metal element and every sublevel of the mine was worked out. Finally, the calculated result of each metal reserve to its actual prospecting reserve was compared, and the results show that they are all almost equal to each other. The absolute errors of Sn, Pb, and Zn reserves are only 1.45%, 1.59% and 1.62%, respectively. Obviously, the built models are reliable and the calculated results of reserves are correct. They can be used to assist the geologic and mining engineers of the mine to do research work of reserves estimation, mining design, plan making and so on. 相似文献
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