Urban Geo-Informatics (Invited ATC10 Lectures)
doi:10.3850/978-981-07-0188-8_P165
Subsurface Structure Model Around Kansai Airport According to Re-Interpretation of Borehole Data based on Result of KIX18-1 Core
Naoko Kitada1, Naoto Inoue1, Keiji Takemura2, Kouji Fukuda3 and Tsuyoshi Emura3
1Geo-research Institute 4-3-2 Itachibori, Nishi-ku, Osaka City, 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
ABSTRACT
Subsurface structure model for estimation of subsidence is important to keep the Kansai international Airport. Many borehole surveys were done to construction around Airport Island. Some geological analyses were carried out to correlate the strata. However, this information is not enough to make a structure model. In 2006, KIX18-1 core obtained the whole core sample to the geological survey until 1350 m. These results make clear the stratigraphy of Osaka Area and well correlated to each area in Osaka Plain. The newly subsurface structure model is constructed using KIX18-1 and other borehole data around Kansai Airport.
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