Urban Geo-Informatics (Invited ATC10 Lectures)
doi:10.3850/978-981-07-0188-8_P170
Three-Dimensional Subsurface Structure Model of Kansai International Airport by Integration of Borehole Data and Seismic Profiles
Naoto Inoue1, Naoko Kitada1, Keiji Takemura2, Kouji Fukuda3
and Tsuyoshi Emura4
1Geo-Research Institute, 4-3-2, Nishi-Ku, Itatibori,
Osaka 550-0012, Japan
2Institute of Geothermal Sciences, Kyoto University,
Noguchibaru, Beppu, Oita 874-0903, Japan
3Kansai International Airport Land Development Co., Ltd. 1 Sennsyukuko Kita,
Izumisano City, Osaka 549-0001, Japan
4Kansai International Airport CO., Ltd. 1 Sennsyukuko kita, Izumisano City,
Osaka 549-0001, Japan
ABSTRACT
The three-dimensional subsurface structure model around Kansai International Airport (KIX) has been developed based on the geologically and geotechnical investigated results of a large amount of borehole data for estimation of subsidence. The model consists of the alternation of marine clay and coarse deposits. The stratigraphy of the model was renewed by KIX18-1, which was about 1300m long drilling core and was drilled near the 2nd runway of KIX. In this study, the model of sparse borehole data region was revised by integrated borehole data and seismic profiles to incorporate complex warping structure and heterogenic lateral variation. The renewed model is available for detailed subsidence and water pressure dissipation analysis, which require large
computational region around KIX.
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