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ID 150
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title alternative
Relationship between slope failure occurrence and precipitation in the areas affected by a strong motion of earthquake
creator
Nishimura, Masaru
subject
Geiyo-earthquake
seismic motion
precipitation
collapse of slope
NDC
Earth sciences. Geology
abstract
The number of collapses of slope induced by the Geiyo-earthquake occurred in March, 2001 wasoverwhelmingly small to compare with the number by other same degree earthquakes before. However, collapsesof slope are prone to occur relatively in a smaller amount of precipitation after the earthquake. The effectof seismic motion in the Geiyo-earthquake in 2001 was firstly evaluated by the maximum seismic acceleration,duration time of strong seismic motion and the direction of both strong motion and collapses of slope. And then,the amount of precipitation that was related to collapses of slope before and after the Geiyo-earthquake byexamining hourly rainfall and working rainfall (half-value period 72 hours) was considered. As a result, it wasfound that 60 to 80 percentage of precipitation, in which collapses of slope had been prone to occur before theearthquake, would be related to the phenomena such as slope failure and/or stone wall destruction, and landslidesmight occur to all direction regardless of the direction of strong motion over 250 gal in seismic acceleration.
journal title
Memoirs of the Faculty of Integrated Arts and Sciences, Hiroshima University. IV, Science reports
volume
Volume 28
start page
35
end page
47
date of issued
2002-12
publisher
広島大学総合科学部
contributor
国立情報学研究所
issn
1340-8364
ncid
SelfDOI
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Integrated Arts and Sciences
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