The Study on Extraction of Falling Rock Source Using Aerial Laser Data to Improve the Efficiency of Falling Rock Measures

Yuqing Zhang, Koki Sakita, Satoshi Nishiyama, Takeharu Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Due to the continuous rainfall, concentrated rainstorm, earthquake and so on caused by the rainy season and typhoon, the accidents caused by falling stone from hillside to road occur frequently. From these accidents, the opportunity to devote to the cause of falling stone countermeasures is improving. In the cause of falling stone countermeasures, road disaster prevention inspection and field investigation play a very important role. Selection of the survey areas and conduction the field survey is important on the project of falling rock measures. However, it is concerned that oversight of falling rock sources and waste of time at field survey, because of the diagram that cannot express the earth surface correctly. Also, it is difficult to express all data in a diagram made by aerial laser surveying although it is good at expression of the earth surface properly. So, we made micro topography highlight map to express the change in terrain finely and emphasize the steep cliff by combining diagrams. In this study, we extracted falling rock source on the desk and survey the selected area by micro topography highlight map. In addition, we verify its result by point cloud data. As a result, we report that we were able to extract steep cliffs of 1.4 m or more in height and 60° or more in terms of angle.

Original languageEnglish
Title of host publicationNew Approaches of Geotechnical Engineering
Subtitle of host publicationSoil Characterization, Sustainable Materials and Numerical Simulation - Proceedings of the 6th GeoChina International Conference on Civil and Transportation Infrastructures: From Engineering to Smart and Green Life Cycle Solutions, 2021
EditorsJinwoo An, Jizhe Zhang, Juan Xie
PublisherSpringer Science and Business Media B.V.
Pages109-116
Number of pages8
ISBN (Print)9783030796402
DOIs
Publication statusPublished - 2021
Event6th GeoChina International Conference on Civil and Transportation Infrastructures: From Engineering to Smart and Green Life Cycle Solutions, GeoChina 2021 - NanChang, China
Duration: Jul 19 2021Jul 21 2021

Publication series

NameSustainable Civil Infrastructures
VolumePart 32
ISSN (Print)2366-3405
ISSN (Electronic)2366-3413

Conference

Conference6th GeoChina International Conference on Civil and Transportation Infrastructures: From Engineering to Smart and Green Life Cycle Solutions, GeoChina 2021
Country/TerritoryChina
CityNanChang
Period7/19/217/21/21

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Computational Mechanics
  • Geotechnical Engineering and Engineering Geology
  • Environmental Engineering

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