Toru Sekiguchi

J-GLOBAL         Last updated: Jul 24, 2019 at 15:44
 
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Name
Toru Sekiguchi
Affiliation
Chiba University

Research Areas

 
 

Academic & Professional Experience

 
Apr 2001
 - 
Jun 2004
Nishimatsu Construction
 
Apr 2007
 - 
Sep 2013
assistant proffessor, Chiba University
 
Oct 2013
 - 
Today
associate professor, Chiba University
 

Education

 
Oct 2004
 - 
Mar 2007
doctoral course, graduate school of science and engineering, Tokyo Institute of Technology
 
Apr 1999
 - 
Mar 2001
Master course, graduate school of science and technology, Tokyo Institute of Technology
 
Apr 1995
 - 
Mar 1999
department of architecture and building engineering, faculty of engineering, Tokyo Institute of Technology
 

Published Papers

 
村山 広樹, 関口 徹, 石田 理永, 岩田 克司, 中井 正一
騒音制御 = The journal of the INCE of Japan   42(4) 177-183   Aug 2018
Kaneko Osamu, Kawamata Shiori, Nakai Shoichi, Sekiguchi Toru, Mukai Tomohisa
JAPAN ARCHITECTURAL REVIEW   1(2) 235-244   Apr 2018   [Refereed]
TANAKA Yujiro, SEKIGUCHI Toru, NAKAI Shin, NAKAI Shoichi
Journal of Structural and Construction Engineering (Transactions of AIJ)   82(736) 823-829   2017
 The objective of this study is to examine the concrete filled effect in the hollow part of SC pile in order to improve the deformation performance of pile. In the pile foundation structure, the improvement is prompted, assuming secondary sei...
KANEKO Osamu, MORISHIMA Reiko, SEKIGUCHI Toru, NAKAI Shoichi, MUKAI Tomohisa
Aij Journal of TECHNOLOGY and Design   23(54) 447-452   2017
Static load increment analyses were carried out for the investigation of the cause that the damage of piles occurred in Chiba prefecture during the 2011 off the Pacific Coast of Tohoku Earthquake. <br>Results similar to the real damage was obtaine...
ISHII Ichiro, HIRADATE Ryouichi, TOWHATA Ikuo, NAKAI Shoichi, SEKIGUCHI Toru, SAWADA Shun, HAMADA Yoshihiro
Japanese Geotechnical Journal   12(1) 91-107   2017
This paper addresses the liquefaction disaster that significantly damaged houses and lifelines in Urayasu City on Tokyo Bay during the 2011 off the Pacific Coast of Tohoku Earthquake. Aiming at reconstruction and mitigation of damage during future...
NARITA Nobuhide, KANEKO Osamu, YAMAMOTO Takeshi, MUKAI Tomohisa, NAKAI Shoichi, SEKIGUCHI Toru
Aij Journal of TECHNOLOGY and Design   23(53) 43-48   2017
In 2011 the Great East Japan Earthquake, many buildings prevented continued use by damage of foundation in spite of minor damage of superstructure. For continued use of buildings, seismic performance of foundation is important, not just seismic pe...
KAWAMATA Yu, SEKIGUCHI Toru, NAKAI Shoichi
Journal of Japan Association for Earthquake Engineering   16(8) 8_32-8_41   2016
In this study, we carried out evaluations of ground motion characteristics in natural slope and cut slope in Chiba city. We have carried out seismic observation at the top of slope and on the terrace. Then we confirm that large amplification of gr...
Pulido Nelson, Aguilar Zenon, Tavera Hernando, Chlieh Mohamed, Calderon Diana, Sekiguchi Toru, Nakai Shoichi, Yamazaki Fumio
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA   105(1) 368-386   Feb 2015   [Refereed]
YAMAMOTO Minoru, NAKAI Shoichi, SEKIGUCHI Toru, FUKUTAKE Kiyoshi, TAJI Yoichi
Journal of Japan Association for Earthquake Engineering   15(7) 7_343-7_353   2015
The authors have been exploring the feasibility of a special type of foundation, named insulated pile foundation, which consists of a raft foundation and a set of piles installed in the ground that are not connected to the raft. In this paper, sei...
SEKIGUCHI Toru, NAKAI Shoichi
Journal of Japan Association for Earthquake Engineering   15(7) 7_100-7_113   2015
In recent earthquakes, a large number of houses on a filled valley ground were collapsed due to earthquakes vibration and landslides. In this study, ground motion characteristics of a filled valley were estimated by microtremor measurements and ea...
KANEKO Osamu, KAWAMATA Shiori, NAKAI Shoichi, SEKIGUCHI Toru, MUKAI Tomohisa
Journal of Structural and Construction Engineering (Transactions of AIJ)   80(717) 1699-1706   2015
&nbsp;The authors carried out static analyses using a foundation structure model in order to simulate the process leading to distinctive damage of pile foundations during the 2011 off the Pacific coast of Tohoku earthquake. Remarkable points of th...
NAKAI Shoichi, SEKIGUCHI Toru
BUTSURI-TANSA(Geophysical Exploration)   66(1) 37-43   Jan 2013
&emsp;Mihama-ku of Chiba city, which consists entirely of reclaimed ground, suffered from extensive liquefaction damage due to March 11, 2011 Tohoku earthquake. The damage map, however, showed non-uniform distribution by a great deal. This paper e...
SEKIGUCHI Toru, NAKAI Shoichi
Aij Journal of TECHNOLOGY and Design   19(43) 983-987   2013
In order to evaluate effects of soil structure interaction on characteristics of traffic vibration propagation to buildings with different foundation type, vibration test was conducted to existing buildings with spread foundation and pile foundati...
WADA Kensuke, NAKAI Shoichi, SEKIGUCHI Toru
Aij Journal of TECHNOLOGY and Design   19(43) 1219-1224   2013
This study investigates the possibility of acceleration of finite element method (FEM) using graphics processing unit (GPU). GPU is a cluster of processors specialized for image processing. In recent years, GPU&rsquo;s computing power for simple c...
SEKIGUCHI Toru, NAKAI Shoichi
Journal of Japan Association for Earthquake Engineering   12(5) 5_21-5_35   2012
In order to evaluate the effects of surface soil structure and the amplification characteristics on the liquefaction damage in Mihama ward of Chiba city during the 2011 Great East Japan earthquake, microtremor measurement and seismic ground motion...
NAKAI Shoichi, SEKIGUCHI Toru, ISHINO Hiroki
Journal of Japan Association for Earthquake Engineering   12 4_80-4_93   2012
A long period ground motion during an earthquake sometimes has a serious impact on large structures. Since the ground motion during an earthquake is largely affected by the so-called site effect which is determined by the soil structure, it is imp...
YAMANAKA Hiroaki, CHIMOTO Kosuke, MOROI Takafumi, IKEURA Tomonori, KOKETSU Kazuki, SAKAUE Minoru, NAKAI Syouichi, SEKIGUCHI Tohru, ODA Yoshiya
BUTSURI-TANSA(Geophysical Exploration)   63(5) 409-425   Oct 2010
&emsp;Surface wave group velocities were extracted with seismic inferferometric processing of long-term continuous data of three-component microtremors in the southern Kanto area including the Izu peninsula in order to validate the existing 3D S-w...
SEKIGUCHI Toru, TOSAUCHI Yusuke, NAKAI Shoichi
Journal of Structural and Construction Engineering (Transactions of AIJ)   75(649) 587-592   2010
H/V spectral ratio of microtremor is used to estimate dynamic properties of the soil by applying a theory based on a horizontal layer assumption. It is often the case, however, that there exists an irregularity such as a slope in reality. Characte...
NAGATA Yoko, NAKAI Shoichi, SEKIGUCHI Toru
Journal of Japan Association for Earthquake Engineering   8(4) 29-45   2008
It is well known that landform has a strong influence on the dynamic properties of the ground. The objective of this study is to clarify the effect of a slope on the dynamic properties of diluvial terrace based on ground investigations, seismic mo...
NAGATA Yoko, NAKAI Shoichi, SEKIGUCHI Toru
Aij Journal of TECHNOLOGY and Design   14(28) 429-432   2008
In this paper, the results of PS-logging conducted in Chiba city and the northwest area of Chiba prefecture are used to estimate S-wave velocity of the surface ground. This area consists of diluvial formation, alluvium and filling soil. Based on t...
Inoue Shusaku, Wijeyewickrema Anil C., Matsumoto Hiroyuki, Miura Hiroyuki, Gunaratna Priyantha, Madurapperuma Manoj, Sekiguchi Toru
PURE AND APPLIED GEOPHYSICS   164(2-3) 395-411   2007   [Refereed]
TOKIMATSU Kohji, ARAI Hiroshi, SEKIGUCHI Toru
Journal of Structural and Construction Engineering (Transactions of AIJ)   72(620) 35-42   2007
Effects of nonlinear properties of surface soil on the variation in strong ground motion and damage to wooden houses within Ojiya city during the 2004 Mid Niigata Prefecture earthquake, are examined, based on field investigation including boring a...
Tokimatsu Kohji, Sekiguchi Toru
SOILS AND FOUNDATIONS   46(6) 765-775   Dec 2006   [Refereed]
TOKIMATSU Kohji, SEKIGUCHI Toru, MIURA Hiroyuki, MIDORIKAWA Saburoh
Journal of Structural and Construction Engineering (Transactions of AIJ)   71(600) 43-49   2006
The peak ground acceleration at K-NET in Ojiya during the Mid Niigata Prefecture Earthquake in 2004 is significantly larger than that at JMA in Ojiya, while the trend reverses in other earthquakes with less intensity. Strain-dependent shear moduli...
TOKIMATSU Kohji, SEKIGUCHI Toru
Journal of Structural and Construction Engineering (Transactions of AIJ)   71(603) 63-68   2006
Strain-dependent shear moduli and damping factors of surface soils at K-NET and JMA stations in Ojiya are estimated not only from cyclic torsional shear tests on undisturbed samples obtained at the sites but also from back-calculation of transfer ...
TOKIMATSU Kohji, SEKIGUCHI Toru
Journal of Structural and Construction Engineering (Transactions of AIJ)   66(550) 65-70   2001
In order to examine the local site effects on the strong motion records of the 1999 Chi-Chi earthquake in Taiwan, microtremor measurements are conducted using arrays of sensors at 11 strong motion stations. Shallow shear wave velocity profiles of ...

Misc

 
関口 徹
アスファルト   54(0) 7-10   Jan 2012

Conference Activities & Talks

 
石田 理永, 中井 正一, 西本 昌, 津田 直毅, 関口 徹
公益社団法人日本騒音制御工学会秋季研究発表会講演論文集 = Proceedings of the autumn meeting, the Institute of Noise Control Engineering of Japan   Nov 2017   
関口 徹, 村山 広樹, 石田 理永, 岩田 克司
公益社団法人日本騒音制御工学会春季研究発表会講演論文集 = Proceedings of the spring meeting, the Institute of Noise Control Engineering of Japan   Apr 2017   
TSUDA Naoki, NISHIMOTO Masashi, NAKAI Shoichi, IWATA Katsuji, SEKIGUCHI Toru, ISHIDA Riei
Summaries of technical papers of annual meeting   4 Sep 2015   
SEKIGUCHI Toru, NAKAI Shoichi, NISHIMOTO Masashi, IWATA Katsuji, ISHIDA Riei
Summaries of technical papers of annual meeting   4 Sep 2015   
NISHIMOTO Masashi, NAKAI Shoichi, SEKIGUCH Toru, IWATA Katsuji
Summaries of technical papers of annual meeting   4 Sep 2015