ASABE Technical Library - Abstract

Click on “Download PDF” for the PDF version or on the title for the HTML version.
If you are not an ASABE member or if your employer has not arranged for access to the full-text, view access and subscription options

Accurate measurement of landslide volume and morphology in Wenchuan earthquake area with 3D laser scanner

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2012 Dallas, Texas, July 29 - August 1, 2012  121341113.(doi:10.13031/2013.42058)
Authors:   Zhanpeng Chen, Tingwu Lei, Heng Hu, Qinghong Yan, Zhenlin Li, Peiling Gao
Keywords:   Keywords: Wenchuan earthquake; Earthquake-triggered landslides; 3-D laser scanner; field measurement

Abstract: The moment magnitude (M) 8.0 earthquake in Wenchuan, Sichuan province, on May 12th, 2008 produced massive landslides made of rock and mud mixture, responsible for serious earthquake-added soil erosion on the impacts of rainfall and runoff. Morphological information of the landslides is needed for estimating the earthquake-added soil erosion. Accurate measurement and calculation of landslide volumes are of great importantances. Typical landslides in Wenchuan County were chosen to estimate their volumes by using 3-D laser scanner of high accuracy. Typical landslides were chosen to measure the relative landslide surface elevation. A method is suggested for the landslide geometry model and for estimating the volume and the morphology of the landslides, based on the measure data. The study established the method and procedures for measuring the volume of landslides with 3-D laser scanner, to supply a sound basis for estimating earthquake-added soil erosion.

(Download PDF)    (Export to EndNotes)