摘要
本文将近景摄影测量分析系统引入工程爆破领域,对建筑物倒塌过程的运动轨迹进行测量分析。本分析系统用非量测用摄影机采集建筑爆破倒塌过程的影像,用直接线性变换解法解析图像,再进行专业化的数据后处理,获得建筑物倒塌过程的构件(或部分结构体)的运动学和动力学参数以及爆破后座、动能、势能、机械能损失率等引申物理量,从而实现各种爆破效果评价参数的定量分析。实践证明基于非量测用摄影机的建筑爆破倒塌过程的摄影测量分析系统是经济可行的,能够满足工程分析的精度要求。
In the paper, the system of close-range photogrammetry analysis was introduced to the field of engineering blasting. The movement track of building during the process of blasting demolition was measured with non-metric camera to collect images and the method of direct linear transformation was selected to process images. By this method, the parameters of kinematic and dynamic components or structures, backlash, kinetic energy, potential energy and the consumption ratio of energy etc. during blasting demolition all could be calculated. And then the effects of blasting demolition were evaluated quantitatively. Practices proved that this method was economical, feasible and reliable.
出处
《测绘科学》
CSCD
北大核心
2011年第5期109-111,共3页
Science of Surveying and Mapping
基金
中爆协科技计划[中工爆协(2008)第4号]
广东省科技计划(2006B37301005)
关键词
近景摄影测量
拆除爆破
爆破倒塌过程
影像采集
影像处理
close-range photogrammetry
blasting demolition
process of building demolition
image collection
image process
