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1〜20 articles out of 38 articles

Characteristics of Serpent-type Wave-maker and its Control System

Port and Airport Research Institute      0509

December, 1984

Wave Laboratory
Tomotsuka TAKAYAMA,Toshihiko NAGAI,Yoshimi GODA

 The Port and Harbour Research Institute has built a serpent-type wave-maker which generates the directional random waves similar ...

Numerical Simulations of the Motions of a Ship Moored with the Ship Anchoring Chain to a Single Buoy

Port and Airport Research Institute      0508

December, 1984

Wave Laboratory
Tomotsuka TAKAYAMA,Tetsuya HIRAISHI,Toshihiko NAGAI,Masami FURUKAWA

 It is well known that the ship moored to a single buoy shows a large yawing motion due to severe winds, and that the motion cause...

Field Measurements of Water Quality at the Mouth of Tokyo Bay -Part 2-

Port and Airport Research Institute      0507

December, 1984

Marine Diffusion Laboratory
Kazuo MURAKAMI,Masayuki MORIKAWA,Masao SHIRAI,Eiji SATO,Takeshi HORIE,Ei-ichi MIYOSHI,Michiyasu KATO

 Field measurements of water quality at the mouth of Tokyo Bay had been carried out once a month from July 1981 to June 1984. The ...

The Past Trend and Current Status of Port Cargo Handling Equipment in Japan

Port and Airport Research Institute      0506

December, 1984


Satoshi INOUE,Hiroyuki YAMADA,Etsuo HAMANO

Today, more than 4,000 units of cargo handling equipment are operating at ports and harbours in Japan. To study their current stat...

Calculation Method of Shear Force and Bending Moment Induced on Pontoon Type Floating Structures in Random Sea

Port and Airport Research Institute      0505

December, 1984

Offshore Structures Laboratory
Shigeru UEDA,Satoru SHIRAISHI,Kazuo KAI

 This paper describes the calculation method of shear force and bending moment induced on pontoon type floating structures in rand...

Analysis Method of Ship Motions Moored to Quay Walls and the Applications

Port and Airport Research Institute      0504

December, 1984

Offshore Structures Laboratory
SHigeru UEDA

 In Japan, ports and harbours are developed greatly after the World War II. But, there are several problems to be improved concern...

Performances of Steel Structures under Marine Environment, being Applied Cathodic Protection (Part 2)

Port and Airport Research Institute      0502

December, 1984


Toshiyuki YOKOI,Masami ABE

 In order to grasp performances of steel structures under marine environments, to which cathodic protection by galvanic anodes hav...

Estimation System of Corrosion of Port Facilities

Port and Airport Research Institute      0501

December, 1984

Director of Design Standard Division
Tomoo ISHIWATA,Tosiyuki YOKOI,Osamu KIYOMIYA,Shinji KATAOKA,Kiyosi AMMA,Nobuaki SHIRAISHI,Shin-ichi TOYAMA,Hideaki KAKIGAWA

 Steel materials of port facilities suffer corrosion. Some facilities are in an advanced stage of corrosion. The stability of dama...

Strong-Motion Earthquake Records on the 7 August 1984 Hyuganada Earthquake in Port Areas

Port and Airport Research Institute      0503

December, 1984

Earthquake Resistant Struetures Laboratory
Eiichi KURATA,Tetsuo FUKUHARA,Setsuo NODA

This report presents the strong-motion earthquake records on the 7 Augest 1984 Hyuganada earthquake in the port areas in Japan. Ev...

Study on the Change of Cargo Flow and Economical Losses Caused by Earthquake

Port and Airport Research Institute      0497

September, 1984

Port Planing Laboratory
Akira YONEZAWA

 In the northern part of Japan, a large unexpected earthquake,. so called Nihonkai-Chubu Earthquake, occurred on May 26, 1983. The...

Records of Strong Winds Above Sea

Port and Airport Research Institute      0496

September, 1984

Subaqueous Tunnels and Pipelines Laboratory
Osamu KIYOMIYA,Hideo NISHIZAWA,Shigeru UEDA

 Field observation of wind velocity at an observation station in Ohsaka Bay about 450km west from Tokyo has been carried out since...

Numerical simulations on two-leveled tidal current and substance dispersion by means of Finite Element Method

Port and Airport Research Institute      0495

September, 1984

Marine Diffusion Laboratory
Kazuo MURAKAMI,Masayuki MORIKAWA

 This paper describes the numerical simulations of tidal current and substance dispersion using Finite Element Method. In this pap...

Microcosm Test for the Grasp of Nutrient Cyele in Marine Environment

Port and Airport Research Institute      0494

September, 1984

Environment Puriffcation Laboratory
Takeshi HORIE,Yasushi HOSOKAWA,Eiichi MIYOSHI,Michiyasu KATO

 To cope with seawater degradation in public waters, it is fundamentally important to grasp the behavior of nutrients and organic ...

Maintenance Inspection Activities for Port Construction Vessels

Port and Airport Research Institute      0499

September, 1984


Etsuo HAMANO,Satoshi INOUE

 Presented in this report are main results and findings of a Survey on Maintenance Inspection of Privately-owned Port Construction...

Engineering Properties of Marine Clays in Osaka Bay (Part 4) Dynamic Stress-Strain and Strength properties

Port and Airport Research Institute      0498-04

September, 1984


Hideaki OHNEDA,Yasufumi UMEHARA,Yoshiaki HIGUCHI,Kazuaki IRISAWA

 In order to investigate the cyclic stress-strain and strength characteristics of clays at the site where KANSAI International Air...

Engineering Properties of Marine Clays in Osaka Bay (Part 3) Static Characteristics of Shear

Port and Airport Research Institute      0498-03

September, 1984


Takashi TSUCHIDA,Yoshiaki KIKUCHI,Kenjiro NAKASHIMA,Masaki KOBAYASHI

 The strata of sea off Sensyu in Osaka Bay consist of very soft alluvial clay and diluvial clays which continue more than 400 mete...

Engineering Properties of Marine Clays in Osaka Bay (Part 2) Physical Properties, Consolidation Characteristics and Permeability

Port and Airport Research Institute      0498-02

September, 1984

Soil Investigations Laboratory
Ichiro ISHII,Fumiko OGAWA,Kouki ZEN

 There is a big project to construct New Kansai International Airport by reclaimed land at sea off Sensyu in Osaka Bay. Soil explo...

Engineering Properties of Marine Clay in Osaka Bay (Part-1) Boring and Sampling

Port and Airport Research Institute      0498-01

September, 1984

Soil Investigations Laboratory
Hiroyasu HORIE,Kouki ZEN,Ichiro ISHII,Kazuaki MATSUMOTO

 The subsoil off-Sensyu in Osaka bay is composed of a soft alluvial layer and successive diluvial clayey deposits with sandy seams...

Expected Values of Maximum Base Rock Accelerations along Coasts of Japan

Port and Airport Research Institute      0486

July, 1984

Earthquake Disaster Prevention Laboratory
Sosuke KITAZAWA,Tatsuo UWABE,Norihiro HIGAKI

 Expected values of the maximum base rock accelerations along coasts of Japan were calculated. 190 points in the coastal area in J...

An Experimental Study on wave Reflection and Wave Forces of Curved Slit Caisson Breakwaters for The Oblique Incident Wave

Port and Airport Research Institute      0493

June, 1984

Breakwaters Laboratory
Katsutoshi TANIMOTO,Yasutoshi YOSHIMOTO

 The reflection coefficient of curved slit caisson breakwaters for oblique incident waves mostly depends on teh apparent width of ...