四川泸县<i>M</i><sub>s</sub>6.0地震极震区无人机影像震害分析

肖本夫; 张露露; 陈波; 毛利; 孟凡馨; 宴金旭

doi:10.11899/zzfy20230211

四川泸县M_s6.0地震极震区无人机影像震害分析

doi: 10.11899/zzfy20230211

1.
四川省地震局, 成都 610041
2.
中国地震局地球物理研究所, 北京 100081
3.
四川省减灾中心, 成都 610000

基金项目: 国家重点研发计划（2019YFC1509402）；四川地震科技创新团队专项（201902）

详细信息

作者简介:
肖本夫，男，生于1986年。工程师。主要从事地震应急、地震地质与数字地震学研究。E-mail：xiaobf_1986@163.com

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出版历程
- 收稿日期: 2021-10-22
- 刊出日期: 2023-06-30

Seismic Damage Analysis of UAV Remote Sensing Images in the Extreme Seismic Zone of the M_S6.0 Earthquake in Luxian, Sichuan

1.
Sichuan Earthquake Agency, Chengdu 610041, China
2.
Institute of Geophysics, China Earthquake Administration, Beijing 100081, China
3.
Sichuan Disaster Reduction Center, Chengdu 610000, China

摘要

摘要: 利用无人机平台及倾斜摄影系统对2021年9月16日四川泸县M_S6.0地震极震区部分区域进行无人机倾斜摄影，构建了群体建筑物高分辨率三维模型，在此基础上，采用目视解译方法对典型建筑物震害和遇难人员周边环境进行解析，初步分析了本次房屋震害和人员遇难原因，为地震现场震害调查、地震烈度评定及灾情研判提供了参考依据。
- 泸县M_S6.0地震 /
- 倾斜摄影 /
- 震害调查 /
- 三维模型
Abstract: In this paper, the technical process of seismic damage investigation and analysis based on unmanned aerial vehicle (UAV) oblique photography technology is proposed, and the UAV platform and oblique photography system are used to conduct UAV oblique photography in some areas of the M_S6.0 earthquake meizoseismal area in Luxian County, Sichuan Province on September 16, 2021. The high-resolution three-dimensional models of group buildings are constructed. On this basis, the visual interpretation method is used to analyze the seismic damage of typical buildings and the surrounding environment of the victims, and the causes of the seismic damage of the buildings and the deaths of the victims are preliminarily analyzed, which provides a reference for the seismic damage investigation, seismic intensity evaluation, and seismic disaster evaluation.
- Luxian M_S6.0 earthquake /
- Oblique photography /
- Seismic damage investigation /
- Three-dimensional model
注释:

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图 1 四川泸县M_S6.0地震烈度图¹

Figure 1. Intensity map of the Luxian M_S6.0 earthquake

下载: 全尺寸图片幻灯片

图 2 倾斜摄影震害调查分析技术流程

Figure 2. Workflow of seismic damage investigation and analysis using oblique photography

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图 3 福集镇大田社区震后三维模型

Figure 3. Three-dimensional model of Datian community in Fuji town after earthquake

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图 4 福集镇大田社区典型建筑物震害提取

Figure 4. Seismic damage extraction of typical buildings in Datian community of Fuji town

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图 5 典型钢筋混凝土框架结构房屋震害

Figure 5. Typical seismic damage of reinforced concrete frame structure building

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图 6 典型砖混结构房屋震害

Figure 6. Typical seismic damage of brick-concrete structure building

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图 7 典型土木结构房屋震害

Figure 7. Typical seismic damage of civil structure building

下载: 全尺寸图片幻灯片

图 8 福集镇草坝村典型人员伤亡周边环境

Figure 8. Surrounding environment of typical casualties in Caoba village, Fuji town

下载: 全尺寸图片幻灯片

表 1 无人机系统性能参数

Table 1. Specifications of UAV system

无人机平台性能名称	M300 RTK技术参数
质量/kg	6.3（含2块电池）
最大载重/kg	2.7
最大飞行海拔高度/m	5000（2110桨叶，起飞质量≤7 kg）
悬停精度/m	垂直精度：±0.1；水平精度：±0.1（RTK定位正常工作时）
最大旋转角速度/（°·s⁻¹）	俯仰轴：300；航向轴：100
最大上升速度/（m·s⁻¹）	S模式：6；P模式：5
最大下降速度/（m·s⁻¹）	S模式：5；P模式：4
最大可承受风速/（m·s⁻¹）	15（7级风）
防护等级	IP45

下载: 导出CSV

表 2 无人机倾斜摄影系统性能参数

Table 2. Specifications of UAV photography system

无人机荷载性能名称	MS Smart2技术参数	禅思P1技术参数
质量/g	580	约800
镜头数量/个	5	1
传感器尺寸/mm	22.3×14.9	35.9×24.0
照片尺寸/Pix	6 000×4 000	8 192×5 460
最小拍照间隔/s	0.2	0.7
有效像素	2 430万（总像素＞1.2亿）	4 500万
防护等级	IP54	IP4 X
搭载续航 /min	约45	约45

下载: 导出CSV

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