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国土资源遥感  2016, Vol. 28 Issue (1): 166-171    DOI: 10.6046/gtzyyg.2016.01.24
  技术应用 本期目录 | 过刊浏览 | 高级检索 |
基于TLS技术的典型建筑物震害信息三维建模分析——以彭州市白鹿中学为例
焦其松1,2, 张景发2, 蒋洪波2, 宿渊源2, 王旭2
1. 中国地震局工程力学研究所, 哈尔滨 150080;
2. 中国地震局地壳应力研究所地壳动力学重点实验室, 北京 100085
Typical earthquake damage extraction and three-dimensional modeling analysis based on terrestrial laser scanning: A case study of Bailu middle school of Pengzhou city
JIAO Qisong1,2, ZHANG Jingfa2, JIANG Hongbo2, SU Yuanyuan2, WANG Xu2
1. Institute of Engineering Mechanics, CEA, Harbin 150080, China;
2. Institute of Crustal Dynamics, CEA, Beijing 100085, China
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摘要 

传统光学及雷达遥感技术在地震灾害损失评估中无法获取建筑物立面破坏信息,对结构已遭破坏,但顶面基本完好的建筑物识别能力较差。三维激光扫描技术(terrestrial laser scanning,TLS)可以获取建筑物结构破坏状况的高精度三维信息。利用2013年10月23日RIEGL VZ-1000三维激光扫描仪采集到的汶川地震震后彭州市白鹿中学的精细点云数据,通过不规则三角网建模和纹理贴图等处理进行三维建模分析,在此基础上对建筑物的典型破坏特征及地表破裂情况进行了详细建模研究,真实再现了白鹿中学破坏场景,实现了震害信息的永久保存。研究结果表明:位于断层上盘的勤学楼整体无明显破损;位于下盘的求知楼损毁相对严重,普遍出现"X"形的共轭剪切裂缝、构造柱断裂及露筋等现象;地震陡坎沉降量不大,高程剖面显示现今该陡坎最低高度为205 cm,最高为231 cm,与GPS测量结果大致吻合。

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蔡红玥
姚国清
关键词 道路交叉口自动提取高分辨率遥感图像形态学多尺度角度纹理波谷检测    
Abstract

Traditional optical and Radar remote sensing technology fails to acquire the building facade damage in the case of earthquake damage assessment. The capability of identifying the buildings whose structure has been destroyed and whose roof top is basically complete is poor. This reduces the assessment accuracy. However, terrestrial laser scanning could acquire the high precision 3D information of the damaged structure. Using RIEGL VZ-1000 laser scanner, the authors collected laser point clouds data of Bailu middle school on October 23, 2013. The point clouds were used to conduct 3D modeling and analysis through triangular irregular network modeling and texture mapping. On such a basis, a detailed modeling study was carried out on the typical architectural damage characteristics and surface rupture destruction. The authors achieved damaged buildings surface observation at any angle and quantitative measurement of the surface rupture through point clouds 3D modeling. The results truly reproduced the current scene of Bailu middle school after earthquake and permanently preserved the damage information. The results showed that the Qinxue building located on the hanging wall had no significant damage, whereas the Qiuzhi building located on the heading wall was seriously damaged. "X"-shaped conjugate shear fracture, structural column fracture, rebar exposure and other phenomena were widespread. The earthquake scarp settlement was small and the scarp elevation profile showed that the minimum and maximum height was 205cm and 231cm respectively. This was consistent with the GPS measurements.

Key wordsroad intersection    autoextraction    high resolution remote sensing image    mathematical morphology    multi-scale    angular texture signature    valley finding
收稿日期: 2014-09-09      出版日期: 2015-11-27
ZTFLH:  TP79  
基金资助:

中央级公益性科研院所基本科研业务专项(编号:J2213802)和国家高技术研究发展计划(编号:2012AA121304)共同资助。

作者简介: 焦其松(1985-),男,博士研究生,主要从事遥感地质方面的研究。Email:1985jqs@163.com。
引用本文:   
焦其松, 张景发, 蒋洪波, 宿渊源, 王旭. 基于TLS技术的典型建筑物震害信息三维建模分析——以彭州市白鹿中学为例[J]. 国土资源遥感, 2016, 28(1): 166-171.
JIAO Qisong, ZHANG Jingfa, JIANG Hongbo, SU Yuanyuan, WANG Xu. Typical earthquake damage extraction and three-dimensional modeling analysis based on terrestrial laser scanning: A case study of Bailu middle school of Pengzhou city. REMOTE SENSING FOR LAND & RESOURCES, 2016, 28(1): 166-171.
链接本文:  
http://www.gtzyyg.com/CN/10.6046/gtzyyg.2016.01.24      或      http://www.gtzyyg.com/CN/Y2016/V28/I1/166

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