Search for PARI Report/Technical Note
Numerical Examination of Several Statistical Parameters of Sea Waves
Port and Airport Research Institute 024-04-02
December, 1985
Vice-director
YOshimi GODA
Analyses are made on the effect of spectral shape on statistical veriability of wave parameters such as heights and periods, the d...
Field Observation of Local Sand Movements in the Surf Zone using Fluorescent Sand Tracer (Second Report)
Port and Airport Research Institute 024-04-01
December, 1985
Storm Surge and Tunami Laboratory
Kazumasa KATOH,Norio TANAKA,Takamichi KONDOH,Masahiro AKAISHI,Kenji TERASAKI
Fluorescent sand tracer were injected in a point in the surf zone and the core samples were taken from sixteen points around it on...
Barge Traffic Systems Planning in a Large-Scale Reclamation
Port and Airport Research Institute 024-03-07
September, 1985
Systems Laboratory
Yasuhide OKUYAMA
In a large-scale reclamation work of fill type, it is very important to find out the optimum number of barges carrying soils and s...
Research on the Influence of Chloride on Corrosion of the Embedded Steel Bars in Concrete
Port and Airport Research Institute 024-03-06
September, 1985
Nobuaki OTSUKI
In these days, there are significant deteriorations in some onshore structures and one of the causes is chloride in concrete. Ther...
Pre-treatment and Heat Processing on Sediment COD Mesurement
Port and Airport Research Institute 024-03-05
September, 1985
Takeshi HORIE,Yoshiyuki SEKINE
Several factors sensitive to sediment COD are experimentally investigated, concerning with the pre-treatment of sediment, and with...
Estimation of Directional Spectra from the Maximum Entropy Principle
Port and Airport Research Institute 024-03-04
September, 1985
Storm Surge and Tunami Laboratory
Noriaki HASHIMOTO,Koji KOBUNE
So far, several methods for the estimation of directional spectra have been proposed and improved. However, in general, to obtain ...
Development of PHRI Geotechnical Centrifuge and its Application
Port and Airport Research Institute 024-03-03
September, 1985
Masaaki TERASHI
Model test of all the physical phenomena must be based upon the rational verification of similarity conditions between a model and...
Decay of Mechanically Generated Waves in an Opposing Wind
Port and Airport Research Institute 024-03-02
September, 1985
Hydrodynamics Laboratory
Hiroichi TSURUYA,Shin-ichi YANAGISHIMA,Yoshikuni MATSUNOBU
An experimental study was conducted to measure the attenuation rates of mechanically generated regular and irregular water waves p...
Characteristics of Ocean Waves off Cape Nojima in the Northwestern Pacific, Measured with a Discus Buoy
Port and Airport Research Institute 024-03-01
September, 1985
Costal Obsevation Laboratory
Koji KOBUNE,Hiroshi SASAKI,Noriaki HASHIMOTO
The ocean waves data measured at 147°E in longitude and 32°N in latitude by a discus buoy were analyzed. The wave statistics shows...
Study on the Wear of Slurry Pipelines (2nd Report)
Port and Airport Research Institute 024-02-09
June, 1985
Yoshikuni OKAYAMA,Kenji HAMADA,Kazuhiro UKEBA,Yuji NAKAMURA
Wear of large steel pipe (D=0.75 m) and polyurethane lined pipe (6 mm in linear thickenss), of which length was 1 m respectively, ...
Shaking Table Tests and Circular Arc Analysis for Large Models of Embankment on Saturated Sand Layers
Port and Airport Research Institute 024-02-08
June, 1985
Earthquake Disaster Prevention Laboratory
Tatsuo UWABE,Sosuke KITAZAWA,Norihiro HIGAKI
Shaking table tests for large models of an embankment on saturated sand layers are described. The tests were designed to discuss t...
Bond Characteristics of Concrete Overlays
Port and Airport Research Institute 024-02-07
June, 1985
Runways Laboratory
Yousuke HAYASHI,Katsuhisa SATO
The advantages of the bonded overlays are lower cost and fewer problems in matching adjacent facilities. In airport pavements of J...
Friction and Entrainment at the Interface of Two-Layered Stratified Flow
Port and Airport Research Institute 024-02-06
June, 1985
Hydrodynamics Laboratory
Susumu NAKANO,Hiroichi TSURUYA,Hidehisa ICHINOHE
The characteristics of turbulence near the interface, such as the gradient of velocity and density profiles, turbulent intencities...
Turbine Power of Pneumatic-type Wave Power Extractors Utilizing Caisson Breakwaters -A Study on Development of Wave Power, 4th Report-
Port and Airport Research Institute 024-02-05
June, 1985
Wave Power Laboratory
Shigeo TAKAHASHI,Satoshi SUZUMURA,Kazuyuki MYOUSE
A wave power extraction system is under development at the Port and Harbour Research Institute. The extractor is a pneumatic type ...
Prediction of the Rate of Sedimentation in Channels and Basins by Considering the Deposition Process Due to Convective Move of Bed Materials
Port and Airport Research Institute 024-02-04
June, 1985
Isao IRIE,Yoshiaki KURIYAMA
A new method to predict the rate of sedimentation in channels and basins combining physical model and numerical model is proposed....
Laboratory Study on the Observation Methods of Sediment Transport as Focussed on Suspension of Sediment above Sand Ripples
Port and Airport Research Institute 024-02-03
June, 1985
Isao IRIE,Kenji TERASAKI,Kazumasa KATOH
For the prediction of topographic change of sea bottom in the field, clarifying the quantitative characteristics of sediment trans...
Experimental Study on the Stability of Wave Dissipating Concrete Blocks against Irregular Waves
Port and Airport Research Institute 024-02-02
June, 1985
Breakwaters Laboratory
Katsutoshi TANIMOTO,Suketo HARANAKA,Kazuo YAMAZAKI
The following discussions on the stability of wave dissipating concrete blocks in front of a vertical wall have been made on the b...
An Effective Stress Analysis of Liquefaction at Ishinomaki Port during 1978 Miyagi-Ken-Oki Earthquake
Port and Airport Research Institute 024-02-01
June, 1985
Susumu IAI,Hajime TSUCHIDA,W.D.Liam Finn
An effective stress model is a promising technique in meeting increasing demands for higher accuracy in assessing liquefaction pot...
Experimental Study on the Bearing Capacity of Rubble Mound
Port and Airport Research Institute 024-01-04
March, 1985
Kunio TAKAHASHI,Yukiharu TOMITA
The allowable toe pressure of 50 tf/m2 which has been determined empirically often restricts the design of caisson type composite ...
Nonlinear Properties of Arc-Shaped Concrete Members
Port and Airport Research Institute 024-01-03
March, 1985
Subaqueous Tunnels and Pipelines Laboratory
Osamu KIYOMIYA,Hiroshi YOKOTA
Arc-shaped concrete memebers have been widely used for structures in land such as arch structures of bridges. In offshore structur...