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1〜19 articles out of 19 articles

Cargo Handling Equipments Installed at Wharf

Port and Airport Research Institute      0329

December, 1979

Automatic Design Laboratory
Toshihiko SHIOZAWA,Shuji YAMAMOTO,Shoji IWASAKI

 In this report the dimensions of various cargo handling equipments, which have been used at main ports in Japan, are analized sta...

Optimum Design of Sectional Form in Foundation Improvement

Port and Airport Research Institute      0328

December, 1979

Automatic Design Laboratory
Shuji YAMAMOTO,Toshihiko SHIOZAWA

 In the case of construction of port facilities on the soft ground, some foundation improvement is needed and the improvement cost...

Drilling and Cutting performance of Water Jet Drill

Port and Airport Research Institute      0327

September, 1979


Hideyuki SHOJI,Tadao NAKAJIMA,Mineo IWASAKI,Jun-ichi AKIZONO,Tatsuo TODOROKI

 This paper presents the results of the study on drilling and cutting performance of the drill jointly epuipped with water jet for...

The stability of artificial beaches; investigations on the project of construction of the artificial beach along Suma Coast by model experiments

Port and Airport Research Institute      0326

September, 1979


Norio TANAKA,Hideo OSANAI

 Since 1973, a big project of constructin of a new beach has been developed along Suma Coast in Kobe City facing to Osaka Bay in J...

The Damage to Port Structures by the 1978 Miyagi-ken-oki Earthquake

Port and Airport Research Institute      0325

September, 1979

Earthquake Resistant Struetures Laboratory
Hajime TSUCHIDA,Takamasa INATOMI,Setsuo NODA,Tadahiko YAGYU,Takeshiho TABATA,Syozo TOKUNAGA,Yugo OTSUKI,Tadatsugu HIRONO

 On June 12, 1978, an earthquake of magnitude 7.4 occurred with its epicenter off Miyagi Prefecture. Structures in various ports m...

Influence of Clearance and Viscosity on Centrifugal Pump Performance

Port and Airport Research Institute      0324

September, 1979


Katsuto MASUDA

 We performed a experiments of a characteristics of a centrifugal pump with the open type impeller to clear the influence of the v...

Ambient Noises of Cutter Suction Dredgers

Port and Airport Research Institute      0323

September, 1979


Mineo IWASAKI,Ken OOTOMO,Tadao NAKAJIMA,Jun-ichi AKIZONO,Tatsuo TODOROKI,Yasumasa OGATA,Yoshihiro SATO,Sakae YAMAUCHI

Ambient noise measurements were carried out on two different type cutter suction dredgers whose pumps were driven by a diesel or b...

Measurements of Turbulence and Diffusion Coefficients in Channel Flow by Use of Hot-film Anemometer and Ultra-sonic Current Meter

Port and Airport Research Institute      0322

June, 1979


Kazuo MURAKAMI,Yutaka KAMEYAMA

 Turbulence generated by a vertical grid in open channel flow is experimentally investigated. A hot-film anemometer and an ultra-s...

A Model Experiment of Irregular Wave Action on a Caisson Breakwater armored with Wave Dissipating Concrete Blocks

Port and Airport Research Institute      0321

June, 1979

Breakwaters Laboratory
Katsutoshi TANIMOTO,Takao KITATANI,Mutsuo OSATO

 A model experiment of irregular wave action on a caisson breakwater armored with concrete blocks has been carried out in order to...

Model Experiments on Some Kinds of Sheet Pile Walls

Port and Airport Research Institute      0320

June, 1979


Kunio TAKAHASHI,Kunihiko SHINOHARA,Tsuyoshi WATANABE

Four times of model experiments were performed respectively on four kinds of sheet pile walls; the sheet pile wall having inclined...

Strong-Motion Earthquake Records on the 1978 Miyagi-Ken-Oki Earthquake in Port Areas

Port and Airport Research Institute      0319

June, 1979

Earthquake Resistant Struetures Laboratory
Eiichi KURATA,Susumu IAI,Yoshiko YOKOYAMA,Hajime TSUCHIDA

This report presents the strong-motion earthquake records of the 1978 Miyagi-Ken-Oki earthquake in port areas in Japan. Event data...

Model experiments related to a recreational beach at Ito Coast

Port and Airport Research Institute      0318

June, 1979

Vice-director
Shoji SATO,Hajime KATO,Hisao KIMURA,Takenori IKEDA

 For the purpose of determining the suitable arrangement of coastal structures planned for an expected recreational beach at Ito C...

Strong-Motion Earthquake Records on the 1978 Izu-Oshime-Kinkai Earthquake in Port Areas

Port and Airport Research Institute      0317

March, 1979

Earthquake Resistant Struetures Laboratory
Eiichi KURATA,Susumu IAI,Hajime TSUCHIDA

This report presents the strong-motion earthquake records of the 1978 Izu-Oshima-Kinkai earthquake and five major aftershocks reco...

Hinterland Maps of the Seabone Cargo (Part 1. Tokyo Bay)

Port and Airport Research Institute      0316

March, 1979

Port Planing Laboratory
Toshikazu MIZOUCHI,Hajime INAMURA,Michio YAJIMA

 The cargo flows between ports and their hinterland were surveyed at 19 ports in Tokyo Bay, Ise Bay and Osaka Bay in October, 1977...

Relationship between spectral width parameters and wave statistics - on the estimating method of the wave period parameters -

Port and Airport Research Institute      0315

March, 1979


Tomoharu TAKAHASHI,Munekazu HIROSE,Tetsuya SASAKI

 Wave statistics and their relations with spectral width parameters were investigated for about 140 surface wave records of deepwa...

Meteorological and Oceanographical Observation at the Ashika Islet and the P.H.R.I.

Port and Airport Research Institute      0314

March, 1979

Costal Obsevation Laboratory
Hiroshi SASAKI,Kazuteru SUGAHARA,Tetsuya SASAKI,Munekazu HIROSE,Yoko EZOZUKA,Daijiro KANEKO,Tomoharu TAKAHASHI

 The meteorological and oceanographical observation data at the Ashika-Islet and the P.H.R.I. are analized statistically. The repr...

Rock Excavation by Microwave - Capability of high power microwave rock breaker (100kW, 200kW) for rock excavation -

Port and Airport Research Institute      0313

March, 1979


Hidetoshi TAKAHASHI,Taisei KOIWA,Shoji MIYAZAKI,Sumitaka KIHARA,Shigeru MATSUMOTO

 This paper reports rock excavation experiments by The Microwave Rock Breaker equipped a 100kW Magnetron with the frequency of 915...

Experiments on Hydraulic Characteristics and Aeration Capacity of the Slit Caisson Type Seawall

Port and Airport Research Institute      0312

March, 1979

Environment Puriffcation Laboratory
Yasushi HOSOKAWA,Eiichi MIYOSHI,Osamu KIKUCHI

 A seawall made of a vertical slit caisson is tested for reflection coefficients, overtopping characteristics, and aeration capaci...

An annual report for wave observation at selected points (1977)

Port and Airport Research Institute      0311

March, 1979

Costal Obsevation Laboratory
Tomoharu TAKAHASHI ,Tetsuya SASAKI,Munekazu HIROSE

 In October of the 43rd year of Showa (1968), The Summary to carry out Wave Observation at Selected Stations was made up in the Po...