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1〜20 articles out of 22 articles

Utilization of Numerical Simuhtion on Nonlinear Irregular Wave for Port and Harbor Design

Port and Airport Research Institute      1036

December, 2002

Wave Division
Katsuya HIRAYAMA

In the paper the applicability of a numerical model based on the Boussinesq-type wave transformation model in shallow water, named...

Numerical Accuracy of a Discrete Wavenumber Method with Complex Frequency

Port and Airport Research Institute      1037

December, 2002

Structural Dynamics Division
Atsushi NOZU

The discrete wavenumber method is one of the techniques to simulate earthquake ground motions for a layered half-space. In the dis...

Long Term Statistics Report on Nationwide Ocean Wave information network for Ports and HArbourS (NOWPHAS 1970 - 1999 )

Port and Airport Research Institute      1035

December, 2002

Marine Information Division
Toshihiko NAGAI

Since 1970, the Port and Airport Research Institute (PARI) has been cooperating with the Ports and Harbours Bureau, Ministry of La...

Observed Offshore Wind Characteristics from a View of Energy Utilization

Port and Airport Research Institute      1034

December, 2002

Marine Information Division
Toshihiko NAGAI

Observed nationwide coastal and offshore wind data, acquired by using the Nationwide Ocean Wave information network for Ports and ...

The Fundamental Experiment about the Hybrid Caisson Using the Perforated Strip Composite Members

Port and Airport Research Institute      1033

December, 2002

Structural Mechanics Division
Jun Nagata,Mitsuyasu Iwanami,Hiroshi Yokota

The purpose of this study is to verify the design method on the hybrid caisson. This paper presents the results of flexural and sh...

Observation and Evaluation of Microstructure of Clays using Scanning Electron Microscope (SEM) and Mercury Intrusion Porosimetry (MIP)

Port and Airport Research Institute      1032

December, 2002

Soil Mechanics and Geo-Environment Division
Min-Soo KANG,Yoichi WATABE,Takashi TSUCHIDA

The uses of Scanning Electron Microscope (SEM) for the micro-structural observation and the Mercury Intrusion Porosimetry (MIP) fo...

New Type Breakwater Caisson using Steel-Concrete Composite Curved Shell Panel

Port and Airport Research Institute      1030

September, 2002

Structural Mechanics Division
Hiroshi YOKOTA,Masao YAMADA,Setsuo IWATA,Hiroshi TANAKA,Susumu MATSUNO,Yoshiki SUKEYASU

A breakwater caisson composed of steel plate - concrete hybrid members will exhibit excellent mechanical performances that are cha...

Development of New Flexible Joint Structure for Submerged Tunnels

Port and Airport Research Institute      1031

September, 2002

Structural Mechanics Division
Hiroshi YOKOTA,Mitsuyasu IWANAMI,Hitoshi KITAYAMAl,Yasuo SHIMAKURA

Development of a new-type flexible joint for submerged tunnels was described. This joint called Crown-seal joint can absorb larger...

Centrifuge Model Tests on Dynamic Properties of Sand Compaction Pile Improved Ground

Port and Airport Research Institute      1029

September, 2002

Soil Stabilization Division
Masaki KITAZUME,Takahiro SUGANO,Yohsuke KAWAMATA,Naoto NISHIDA,Kazuhiro ISHIMARU,Yoshinori NAKAYAMA

Sand compaction pile (SCP) has been widely utilized for the improvement of the bearing capacity and settlement of soft ground. Alt...

Hydro-and Morpho-Dynamics on a Barred Beach

Port and Airport Research Institute      1028

September, 2002

Littoral Drift Division
Yoshiaki KURIYAMA

Waves, currents and morphological changes on a barred beach were investigated on the basis of numerical simulations and field data...

Hydraulic Model Experiments on the Stability against Wave Actions of a Breakwater using the Suction Foundation

Port and Airport Research Institute      1027

September, 2002

Maritime Structures Division
Kenichiro SHIMOSAKO,Masahide NAKAGAWA,Toyokazu KURODA,Ryuichi FUJIWARA

The breakwater using the suction foundation has several advantages over conventional composite breakwater, i.e., it has high

Study on the Evaluation and Improvement of Geo-environment for Waste Landfill in Coastal Areas

Port and Airport Research Institute      1025

June, 2002

Soil Mechanics and Geo-Environment Division
Takashi TSUCHIDA,Yoichi WATABE,Yukinobu ODA,Satoshi IMAMURA,Masanori NEGISHI

Since 1998, a series of studies on geo-environment problems in waste disposal sites in coastal areas have been carried out. This r...

Coefficient of friction and permeation characteristic of lightweight treated soil placed on the ground

Port and Airport Research Institute      1024

June, 2002


Takashi TSUCHIDA,Takao SATOH,Koji MITSUKURI,Fumio HASHIMOTO

The full-scale model test on coefficient of friction between a block of foam-treated soil and the base soil was carried out in Kum...

Bearing capacity analysis and stability analysis by

Port and Airport Research Institute      1023

June, 2002

Soil Mechanics and Geo-Environment Division
Takashi TSUCHIDA,Kenta MIZUNO

 In this study, numerical simulations by elasto-plastic FEM analysis program GeoFem which is developed by Port and Airport Researc...

Characteristics of Ground Motions Observed at Haneda Airport(First Report) Characteristics of Surface Waves

Port and Airport Research Institute      1022

June, 2002

Structural Dynamics Division
Atsushi NOZU,Tadashi ANNAKA,Yoko SATO,Takahiro SUGANO

 Earthquake ground motions have been observed at the New A Runway, the Sky Arch, the New B Runway and a railroad tunnel at Haneda ...

Seismic Isolation effect of thin layer with low shear modulus on a Box Caisson Type Quaywall

Port and Airport Research Institute      1021

June, 2002


Yoshiyuki MORIKAWA,Hiroyuki YAMAZAKI,Masaaki MITO,Kazuhiro KAMEYAMA,Fumikatsu KOIKE

 This technical note is devoted to present the effect of a seismic isolation layer, which is a soft thin layer located in ground i...

Estimation of Nutrient Budget during a Tidal Cycle in Banzu Tidal Flat

Port and Airport Research Institute      1020

June, 2002

Coastal Ecosystems Division
Munehiro NOMURA,Susumu KONUMA,Tomohiro KUWAE,Eiichi MIYOSHI,Yoshiyuki NAKAMURA

 Field observations were carried out in Banzu intertidal flat in Tokyo Bay throughout two days in the summer of 2000,in order to c...

ANNUAL REPORT ON STRONG-MOTION EARTHQUAKE RECORDS IN JAPANESE PORTS (2001)

Port and Airport Research Institute      1019

June, 2002

Structural Dynamics Division
Kiyotaka FUKAZAWA,Yoko SATO,Atsushi NOZU,Takahiro SUGANO

 Since 1962, strong ground motions and earthquake responses of structures have been observed in the major ports in Japan. By the e...

A Framework for Performance-Based Seismic Design of Port Structures

Port and Airport Research Institute      1018

June, 2002

Director of the Special Research(in charge of Enviromental Issues)
Susumu IAI,Takahiro SUGANO,Atsushi NOZU,Koji ICHII,Yoko SATO,Eiji KOHAMA,Kiyotaka FUKAZAWA

This technical note presents an initial proposal on a framework for performance-based seismic design of port structures.Proven sim...

Annual Report on Nationwide Ocean Wave information network for Ports and HArbourS (NOWPHAS 2000)

Port and Airport Research Institute      1017

March, 2002

Marine Information Division
Toshihiko NAGAI,Katsutoshi SATO,Kazuteru SUGAHARA

 Since 1970, the Port and Harbour Research Institute (PHRI) has been cooperating with the Bureau of Ports and Harbours, Ministry o...