Search for PARI Report/Technical Note
Steam-Driven Ejector Applied to Spilled Oil Recovery
Port and Airport Research Institute 048-04-06
December, 2009
Oil Spill Responce Group
Isamu FUJITA,Muneo YOSHIE,Kenji TAKEZAKI
An application of steam-driven ejector to oil skimming system has been experimentally examined. Formation of W/O emulsion gives th...
Development of Noncontact Thickness Gauging Equipment for Underwater Steel Structure
Port and Airport Research Institute 048-04-05
December, 2009
Measurement and Control Technology Group
Natsuki YOSHIZUMI,Sayuri MATSUMOTO,Kageyoshi KATAKURA
A novel noncontact thickness gauging equipment, which aims to inspect underwater steel structures in ports, was developed. Non-con...
Proposals of non-destructive methods to detect stripping damages in airport asphalt concrete layers
Port and Airport Research Institute 048-04-04
December, 2009
Ryota MAEKAWA,Kai SU,Junichi MIZUKAMI,Yukitomo TSUBOKAWA
An efficient and objective method of detecting the occurrence of layer de-bonding has been developed. Normally Hammer inspection ...
Development of Underwater Three-Dimensional Imaging SONAR System with Acoustic Lens
Port and Airport Research Institute 048-04-03
December, 2009
Measurement and Control Technology Group
Sayuri MATSUMOTO,Kageyoshi KATAKURA,Natsuki YOSHIZUMI
In the present situation, the slope of landfill after underwater construction is checked by divers by using level survey and visu...
Corrosion Behavior of Steel Bars in Reinforced Concrete Slabs Repaired by Partial Patching
Port and Airport Research Institute 048-04-02
December, 2009
Structual Mechanics Group
Ema KATO,Yoshikazu AKIRA,Mitsuyasu IWANAMI,Hiroshi YOKOTA
Partial patch repair is one of the most popular countermeasures for reinforced concrete (RC) member deteriorated by chloride attac...
Horizontal Subgrade Reaction Model for Estimation of Lateral Resistance of Pile
Port and Airport Research Institute 048-04-01
December, 2009
Director of Geotechnical and Structural Engineering Department
Yoshiaki KIKUCHI
A sort of beam on an elastic medium theory is usually used for designing piles loaded perpendicular to the pile axis. Three types ...
Evaluation of Design Wave Condition for Seawall on Coral Reef Calculated in Boussinesq-type Wave Transformation Model
Port and Airport Research Institute 048-03-02
September, 2009
Wave Division
Katsuya HIRAYAMA,Kazuto HARUO,Ichiro MIYAZATO
Wave overtopping rate for a designed seawall can be evaluated in the diagrams proposed by Goda (1975) using the equivalent offsho...
Influence on Wave Pressures of Wave-Dissipating Block state on Breakwater withWave-Dissipating Block Layer
Port and Airport Research Institute 048-03-01
September, 2009
Maritime Structures Division
Katsumi SEKI,Taro ARIKAWA,Masahiro MIZUTANI
Reliability design of maritime structures based on the deformation level will be one of the most important future design tools. H...
Generation Method of Directional Random Waves with Arbitrary Spectrum
Port and Airport Research Institute 048-02-09
June, 2009
Wave Division
Katsuya HIRAYAMA,Ichiro MIYAZATO
To evaluate the design waves for coastal structures, the offshore wave transformation in shallow water is numerically simulated. ...
Performance of corrosion prevention by painting methods in marine atmosphere and performance evaluation methods for soundness of paint layers
Port and Airport Research Institute 048-02-08
June, 2009
Yoshikazu AKIRA,Mitsuyasu IWANAMI,Toru YAMAJI
To evaluate the corrosion prevention performance of the painting methods applied to port steel structures, the exposure test was c...
10-Year Follow-up Study on Long-Term Properties of Air-Foam Treated Lightweight Soil Placed in Coastal Areas
Port and Airport Research Institute 048-02-07
June, 2009
Yoichi WATABE,Masanori TANAKA,Shinji SASSA
Airfoam-treated lightweight soil (SGM) is a mixture of clay slurry, cement, and airfoam. This paper summarizes a 10-year follow-up...
New Determination Method of Soil Parameters for Performance Based Design
Port and Airport Research Institute 048-02-06
June, 2009
Yoichi WATABE,Masanori TANAKA,Shinji SASSA,Yoshiaki KIKUCHI
The Japanese design code for port facilities was revised in April 2007, and a performance-based reliability design method was intr...
A Study of the Geotechnical Investigation Results at the Planning Site of the D-Runway of the Tokyo International Airport
Port and Airport Research Institute 048-02-05
June, 2009
Yoichi WATABE,Masanori TANAKA,Shinji SASSA,Takatoshi NOGUCHI,Masafumi MIYATA
In the Tokyo International Airport (Haneda Airport), the new offshore expansion project with the fourth runway (D-runway) is being...
Thickness Effects on Long-Term Consolidation Behavior of Osaka Bay Clays
Port and Airport Research Institute 048-02-04
June, 2009
Yoichi WATABE,Masanori TANAKA,Shinji SASSA,Tsuyoshi EMURA
The objective of this study is to empirically clarify the scale effect in long-term consolidation behavior. Frictional pressure lo...
Evaluation of Strain Rate Effect with Isotache Model on Long-Term Consolidation of the Clay Deposits at Kansai International Airport
Port and Airport Research Institute 048-02-03
June, 2009
Yoichi WATABE,Masanori TANAKA,Shinji SASSA,Yoshiyuki MORIKAWA
The consolidation characteristics of clay, based on the isotache concept in which the strain rate effect is considered, have been ...
Development of the Three-dimensional Numerical Model of Sediment Transports and Topographic Changes of Intertidal Flats due to Sands and Cohesive Sediments Generated by Tidal Currents and Wave-induced Currents and an Application to the Filed.
Port and Airport Research Institute 048-02-02
June, 2009
Coastal Sediments and Processes Group
Ken-ichi UZAKI,Yoshiaki KURIYAMA
In order to keep the dynamic stability of intertidal flats, it is important to establish the numerical model of sediment transport...
Development of Life Cycle Management System for Open-type Wharf
Port and Airport Research Institute 048-02-01
June, 2009
Ema KATO,Mitsuyasu IWANAMI,Hiroshi YOKOTA
The authors have proposed a strategic maintenance method of port facilities based on the life-cycle management (LCM) concept. The ...
Structural Performance Evaluation Method for Replaceable Slab of Open-Type Pier
Port and Airport Research Institute 048-01
March, 2009
Mitsuyasu IWANAMI,Ema KATO,Hiroshi YOKOTA
Reinforced concrete (RC) members consisting of superstructure of open-type piers are exposed to very severe conditions, resulting...