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1〜20 articles out of 29 articles

Automatic Design of Curtain Wall Type Breakwater

Port and Airport Research Institute      0435

December, 1982

Automatic Design Laboratory
Shoji IWASAKI,Toyohiko UCHIDA,Masayuki FUKUI,Shin-ichi TOYAMA

 This report presents the system and the design method of the automatic design system for curtain wall type breakwater. Using this...

Development and Application of a Numerical Model for the Prediction of Shoreline Changes

Port and Airport Research Institute      0436

December, 1982

Head of Marine hydrodynamics Division
Norio TANAKA,Kazuo NADAOKA

 A numerical model for practical use based on the 'one-line theory' is presehted to simulate shoreline changes due...

Experiments on Oxygen Solution efficiency from diffuser pipe in Laboratory basin

Port and Airport Research Institute      0437

December, 1982


Yasushi HOSOKAWA,Michiyasu KATO,Takeshi HORIE

 Aeration experiments are conducted in the laboratory wide basin (10m×10m×1m). Compressed are is injected into the oxygen deficit ...

Evaluation of the Disturbance of Soils in Sampling Tubes with the Radiographic Test

Port and Airport Research Institute      0438

December, 1982


Kouki ZEN,Kazuaki MATSUMOTO,Ichiro ISHI

As a test method to evaluate the disturbance of sampled soils, the study on the radiographic test has been carried out for soils i...

Measurement of Settling Velocity of Fine Suspended Matter in Coastal Area

Port and Airport Research Institute      0433

September, 1982


Yasushi HOSOKAWA,Takeshi HORIE,Eiichi MIYOSHI,Michiyasu KATO

 To calculate the concentration of the particulate organic matter in eutrophic coastal area, it is necessary to estimate the settl...

Laboratory Tests on the Solution Alkalized by Coal Ash

Port and Airport Research Institute      0432

September, 1982


Yoshihiro SHOJI,Koichi TOGASHI

In order to examine the influence of coal ash disposed into the sea on the surrounding environments, some fundamental tests on the...

Behavior of Treated-Soil-Slab on Extermely Weak Ground

Port and Airport Research Institute      0431

September, 1982


ZHANG Wen Quan,Hiroyuki TANAKA,Masaaki TERASHI

In Japan, many reclamation projects are carried out using soft sea bottom sediment as fill material. If it is required to ut

Deflection and Strength of Reinforced and Prestressed Concrete Beams Subjected to Impulsive Loading

Port and Airport Research Institute      0430

September, 1982

Offshore Structures Laboratory
Shigeru UEDA,Akira KOJIMA

Deflection and strength of both reinforced and prestressed concrete beams subjected to impulsive loading with very short loading t...

Direct Finite Element Formulation Having Physical Meanings

Port and Airport Research Institute      0434

September, 1982


Mineo IWASAKI

 This paper presents a method of changing a continuous function distributed on a element domain for boundary into a discrete funct...

Investigation on Quality of Concrete for Harbour Construction Works

Port and Airport Research Institute      0429

September, 1982


Nobuaki OHTSUKI,Osamu SHIMOZAWA

The investigation was carried out the quality of concrete used for the harbour construction works in 1979. It covers the all

Automatic Design System for Cantilever Sheet Pile Breakwater and Quaywall

Port and Airport Research Institute      0428

September, 1982

Automatic Design Laboratory
Toyohiko UCHIDA,Shoji IWASAKI,Masayuki FUKUI

This report presents the system and the design method of the automatic design system for cantilever sheet pile breakwater and quay...

Tractive force on bolards and Storm bitts

Port and Airport Research Institute      0427

September, 1982

Design Standard Laboratory
Isao FUKUDA,Tadahiko YAGYU

Tractive force on bollards and storm bitts is studied in this paper. In this study critical load acting on mooring ropes is

Automatic Design System for Bar Arrangement of the Caison (Part 2) -Unsymmetrical Bar Arrangement of the Caison-

Port and Airport Research Institute      0424

June, 1982

Automatic Design Laboratory
Masayuki FUKUI,Shoji IWASAKI,Toyohiko UCHIDA

This report presents the system and the design method of the program for the automatic design system which is developed for

Title Investigation Method for Economic Evaluation of port Project

Port and Airport Research Institute      0425

June, 1982


Tsutomu NAKANO,Hajime INAMURA

 Synthetic economic evaluation model for port proiect was proposed in Report of the P.H.R.I., Vol.21, No.2. As shown in this repor...

Development of Rubble Mound Levelling Technique (Part-1) -Basic Characteristics of a Chute0type Rubble Mound Levelling Method-

Port and Airport Research Institute      0423

June, 1982


Tadasu OKUDE,Hiroyuki YAMAYA,Kazuhiro SHIRAI

 An experimental study was made to investigate the basic characteristics of a chute-type rubble mound levelling method.  Levellin...

Effective Removal of Soft Mud Layer by A Front-Open Type Drag Head - Effective Use of wide stabilizer in the dredging for thin layer-

Port and Airport Research Institute      0422

June, 1982


Yoshikuni OKAYAMA,Kenji HAMADA,Yukitoshi MURAKAMI

 A front-open type drag head has been developing as one of the effective methods to remove soft mud layers at sea bottom. In this ...

Flocculation of Bentonite in Salt Water

Port and Airport Research Institute      0421

June, 1982


Shigeaki ADACHI

 The soil particles causing turbidity compose flocs in the sea. The behavior of flocs composed in the sea is different from indivi...

Model Experiment on Turbidity Caused by Pump Dredging (Part-2)

Port and Airport Research Institute      0420

June, 1982


Yasuo SHIRATORI,Katsuto MASUDA,Hideo KATO,Sakae YAMAUCHI

 Authors carried out model experiments on turbidity caused by pump dredging to investigate the relationships between turbidity and...

Model Experiments Related to a Recreational Beach at Kawarago

Port and Airport Research Institute      0419

June, 1982


Hisao KIMURA,Shoji SATO

 The prefectual authority of Ibaragi is planning to construct an artificial recreational beach at the north coast of Kawarago Port...

Summary of the Coastal Wave Observation Facilities in Ports and Harbours

Port and Airport Research Institute      0418

March, 1982

Costal Obsevation Laboratory
Tomoharu TAKAHASHI,Kazuteru SUGAHARA,Munekazu HIROSE

 In this note, the summary of the coastal wave observation facilities at the network stations in ports and harbours is presetned. ...