Assessment of Aqueduct Bridge Failure in Wakayama City, Japan, Based on Uav Surveying Flights and High-Resolution Sar Data

Assessment of Aqueduct Bridge Failure in Wakayama City, Japan, Based on Uav Surveying Flights and High-Resolution Sar Data
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基于无人机测量飞行和高分辨率 Sar 数据对日本和歌山市渡槽桥梁破坏进行评估

DOI:
10.1109/igarss46834.2022.9883792
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发表时间:
2022
期刊:
Proc. International Geoscience and Remote Sensing Symposium
影响因子:
--
通讯作者:
Maruyama Yoshihisa
Maruyama Yoshihisa
中科院分区:
--
文献类型:
--
作者:
Yamazaki Fumio;Liu Wen;Furuya Takashi;Maruyama Yoshihisa

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2021年10月3日,日本西部和歌山市,一座渡槽的一跨突然倒塌。本研究探讨了利用遥感数据评估桥梁的情况下,在正常的时间和事故/灾害。作者在一个小型的UA V. Google街景照片的帮助下进行了实地调查,这些照片也是在事故发生前拍摄的。根据这些数据,估计当桥梁倒塌发生时,18个吊杆中有5个以上可能已经损坏。从无人机图像中也证实了相邻幸存跨度中4个吊架的失效。还引入了事件前和事件后的高分辨率TerraSAR-X强度图像,以从SAR数据中提取塌陷跨度。
One span of an aqueduct bridge suddenly collapsed in Wakayama City in western Japan on October 3, 2021. This study investigates the use of remote sensing data for the assessment of bridge situations in the normal time and in accidents/disasters. A field survey was conducted by the authors with the aid of a small UA V. Google Street View photos taken before the accident were also used. Based on these data, it is estimated that more than 5 hangers out of 18 might have failed for the collapsed span when the bridge collapse occurred. The failure of 4 hangers was also confirmed in the adjacent surviving span from the UAV images. The pre- and post-event high-resolution TerraSAR- X intensity images were also introduced to extract the collapsed span from the SAR data.
多方面高分辨率 INSAR 数据中水上桥梁的提取
DOI: --
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期刊: --
影响因子: --
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