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1〜20 articles out of 29 articles

Method and its Evaluation for Computation of Moored Ship's Motions

Port and Airport Research Institute      022-04-06

December, 1983

Offshore Structures Laboratory
Shigeru UEDA,Satoru SHIRAISHI

Simulation method to calculate ship's motions and mooring forces of moored ship was developed. In this method irregulariti...

Observation and Analysis of Seismic Response of Grid Type Improved Ground by Deep Mixing Method.

Port and Airport Research Institute      022-04-05

December, 1983

Vibration Laboratory
Motoki KAZAMA,Takamasa INATOMI,Toshihiro IMAMURA

The vibration characteristics of the grid type improved ground by Deep Mixing Method was studied using the acceleration records ob...

Structural Evaluation of Asphalt Concrete Overlays on Concrete Pavements and Calculation Methods of Overlay Thicknesses

Port and Airport Research Institute      022-04-04

December, 1983

Runways Laboratory
Yoshitaka HACHIYA,Tsutomu FUKUTE,Katsuhisa SATO,Yosuke HAYASHI

A structural capacity of asphalt concrete overlays on concrete pavements has been evaluated by loading tests on the test pavements...

Study on shearing Properties of Rubbles with Large Scale Triaxial Compression Test.

Port and Airport Research Institute      022-04-03

December, 1983


Yoshihiro SHOJI

To study shearing properties of rubbles used for rubble-mound foundations peculiar to port and harbour facilities, filed survey an...

Experimental Study on Vertical Anchor Piles of Sheet Pile Wall

Port and Airport Research Institute      022-04-02

December, 1983


Kunio TAKAHASHI,Yoshihiro SHOJI

According to reports of damaged port and harbor structures by earthquakes, deflection of vertical anchor piles of sheet pile wall ...

Generation Mechanism of Impulsive Pressure by Breaking Wave on a Vertical Wall2004

Port and Airport Research Institute      022-04-01

December, 1983


Shigeo TAKAHASHI,Katsutoshi TANIMOTO,Satoshi SUZUMURA

The clear understanding of the generation mechanism of the impulsive pressure by breaking wave is indispensable for the design of ...

Development and Application fo Synthetic Economic Evaluation Model for Port Planning (2nd Report) -Value Added Model-

Port and Airport Research Institute      022-03-10

September, 1983

Port Planing Laboratory
Yoshio TAKEUCHI,Akira YONEZAWA,Hajime INAMURA

Synthetic Economic Evaluation Model for Port Planning, so called Value Added Model, was proposed in the Report of the P.H.R.I., Vo...

Development of Space Design of Port and Harbour (3rd Report) -Easy Input Methods and Application to Port Planning-

Port and Airport Research Institute      022-03-09

September, 1983

Systems Laboratory
Yasuhide OKUYAMA,Tamami UMEYAMA,Yoshihiro SASAKI

In recent port construction or redevelopment of ports, the space design has been requested more and more than ever, according to t...

Field Observation and Response Analysis at Kawasaki Koh Submerged Tunnel

Port and Airport Research Institute      022-03-08

September, 1983

Subaqueous Tunnels and Pipelines Laboratory
Osamu KIYOMIYA,Hideo NISHIZAWA,Hiroshi YOKOTA

Field observation at Kawasaki Koh Submerged Tunnel has been carried out since October 1979 to study the behavior of the submerged ...

An Experimental Study on the Earthquake Resistance of Wall Type Improved Ground by Deep Mixing Method

Port and Airport Research Institute      022-03-07

September, 1983

Vibration Laboratory
Takamasa INATOMI,Motoki KAZAMA,Toshihiro IMAMURA

In order to investigate the vibrational characteristics of wall type improved ground by Deep Mixing Method and to evaluate the pre...

Water-quality Controlling Factors in an Eutrophication Model

Port and Airport Research Institute      022-03-06

September, 1983


Takeshi HORIE,Yasushi HOSOKAWA

Some characteristics of the factors sensitive to water-quality are numerically investigated to a mathematical model prepared for t...

Analysis of Efficiency of Pneumatic-type Wave Power Extractors Utilizing Caisson Breakwaters - A Study on Development of Wave Power 1st Report-

Port and Airport Research Institute      022-03-05

September, 1983

Wave Power Laboratory
Roushi OJIMA,Yoshimi GODA,Satoshi SUZUMURA

Characteristics of pneumatic-type wave power extractors are examined on the basis of both the results of the approximation theory ...

One-dimensional Spectra of Wind waves in coastal waters

Port and Airport Research Institute      022-03-04

September, 1983


Munekazu HIROSE,Yuji TACHIBANA,Kazuteru SUGAHARA

This paper discusses about the applicability of the JONSWAP spectrum and the Wallops spectrum to observed wind wave spectra and th...

Inprovement of Step-type Recording wave Gauge with Application of Micro-processor

Port and Airport Research Institute      022-03-03

September, 1983


Hiroshi SASAKI,Tomoharu TAKAHASHI

A new step-type recording wave gauge with the application of micro-processor has been developed. There often appeared troubles for...

Principle and Performance of Non-reflective Wave Generator by Thrust Control

Port and Airport Research Institute      022-03-02

September, 1983

Breakwaters Laboratory
Katsutoshi TANIMOTO,Suketo HARANAKA,Eiji TOMIDA

Re-reflection from a wave paddle disturbs the incident waves to the model structure in the flume, In particular, it becomes seriou...

A Unified Nonlinearity Parameter of Water Waves

Port and Airport Research Institute      022-03-01

September, 1983

Head of Hydraulic Engineering Division
Yoshimi GODA

A new empirical parameter bridging the wave steepness in deep water and Ursell's parameter in shallow water is proposed to...

Applicability of Cathodic Protection to Concentrated Corrosion

Port and Airport Research Institute      022-02-09

June, 1983


Kazuaki ZEN,Masami ABE

As a result of corrosion survey of steel structures in the marine environments, it has found that in some cases corrosion concentr...

Analysis of Earthquake Ground Motions Observed with Two Dimensional Seismometer Array (First Report) -North Tokyo Bay Earthquake of June 4, 1977-

Port and Airport Research Institute      022-02-08

June, 1983

Head of Structures Division
Hajime TSUCHIDA,Susumu IAI,Eiichi KURATA

A two dimensional seismic array was established in April 1974 at Haneda in Tokyo. The array covers a straight line of 2500 meter l...

Coupled Hydrodynamic Response Analysis Based on Strong Motion Earthquake Records of Fill Type Breakwater in Deep Sea

Port and Airport Research Institute      022-02-07

June, 1983

Earthquake Disaster Prevention Laboratory
Tatsuo UWABE,Hajime TSUCHIDA,Eiichi KURATA

The accelerograms recorded on the large composite type breakwater which is located at a mouth of Ofunato Bay in the water depth of...

Changes of Properties of Asphalt Concretes due to Heat Curing at 70°C

Port and Airport Research Institute      022-02-06

June, 1983

Runways Laboratory
Yoshitaka HACHIYA,Tsutomu FUKUTE,Katsuhisa SATO

Heat was delt with as a factor of natural environment which makes asphalt concretes harden. This effect to asphalt concretes was c...