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GIS-Based
Analysis and Display of Amplified Earthquake Surface Ground Motions in
Geographic Regions
ABSTRACT
Sedimentary soil can amplify
earthquake waves. This event occurs because of the strong contrast between
the properties of sedimentary soil and the properties of bedrock. The
sedimentary soil properties are varying within a close range, therefore it
is unreasonable to analyze soil for its implication to earthquake waves
every time the properties changing. It will take a long time and very
expensive.
The advance of computer
technology in the past few years allow people to do complex calculations
in a very short time. A GIS computer program is a module that provides
users to create system analysis and manage topological features and an
associated database, to analyze it and to display result of geographical
information. Taking an advantage of this program, we are going to apply a
GIS approach to make an analysis of a particular area for its surface
acceleration. The input file is soil profile obtain from boring test and
the earthquake time history of that particular area.
The program will be run using
Arc View GIS program. The result, spectra acceleration, spectra velocity
and spectra displacement of particular area, will be displayed in Arc View
GIS.
Lastly, The area will be use for case study is in
Eastern New York region and local Soil Engineer Consulting supplied the
Input profiles.
Programs
(.zip file 251 kb)
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