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21〜37 articles out of 37 articles

Study on Systematization of Inspection Technics for Offshore Underwater Constructions (Part-2) - Sea Experiment with the ultrasonic underwater Imaging System -

Port and Airport Research Institute      0585

June, 1987


Sumitaka KIHARA,Kazuhiro SHIRAI

 This report describes the sea experiment for the development of the ultrasonic technics of sounding seafloor stone mound. From th...

Marine Traffic Analysis in Tokyo Bay

Port and Airport Research Institute      0583

June, 1987

Systems Laboratory
Yasuhide OKUYAMA,Yoshinobu HAYAFUJI,Yukihide YOSHIDA,Katsuyoshi SHIMIZU,Kunihiro AJIKI

 This Note shows analyzed results of marine traffic observation of Tokyo Bay during 48 hours from 12:00 Nov.29th to 12:00 Dec. 1st...

Study on Systematization of Inspection Technics for Offshore Underwater Constructions (Part-1) - Outdoor Experiment with the Ultrasonic Sounding System for Seafloor Stone Mound -

Port and Airport Research Institute      0584

June, 1987


Sumitaka KIHARA,Kazuhiro SHIRAI

This report describes the outdoor experiments for the developement of ultrasonic technics of sounding seafloor stone mound. The ex...

The Application of the Reliabiility Theory to the Breakwater (Part-2)

Port and Airport Research Institute      0582

June, 1987


Shinya SUZUKI

 The conventional safety factor doesn't reveal the degree of the safety. But the reliability based design, which is in vog...

Development of An On-line Wave Data Processing Unit for Field Observation

Port and Airport Research Institute      0580

June, 1987


Hiroshi SASAKI,Yoshimi GODA,Takashi KONAGAI

 A new data processing unit is developed for the automatic and on-line processing of the analogue signals from an ultrasonic wave ...

Scour in front of Vertical Walls by Diagonal Standing Waves

Port and Airport Research Institute      0581

June, 1987

Head of Marine hydrodynamics Division
Isao IRIE,Yoshiaki KURIYAMA,Hirotoshi ASAKURA,Makoto FUJITA

 Vertical wall type breakwaters without rubble mounds are considered to be suitable on very soft sea bottom or in deep sea where i...

Study on a Reclamation Mehtod with Cement-mixed Sandy Soils - Fundamental Characteristics of Treted Soils and Model Tests on the Mixing and Reclamation -

Port and Airport Research Institute      0579

June, 1987


Kouki ZEN,Hiroyuki YAMAZAKI,Atsushi WATANABE,Hideaki YOSHIZAWA,Akitomo TAMAI

 The purpose of this study is to develop a new method to produce the liquefaction-resistant reclaimed land with the pre-treated sa...

Measurements of Ko Values of Marine Clays by Triaxial Tests

Port and Airport Research Institute      0577

June, 1987


Yoshiaki KIKUCHI,Takashi TSUCHIDA,Kenjiro NAKASHIMA

 The coefficient of earth pressure at rest, K0 is an important prarameter to represent the in-situ state of stress. And the reprod...

Model Tests on Cyclic Movements of Offshore Structures on Sand

Port and Airport Research Institute      0578

June, 1987


Kouki ZEN,Hiroyuki YAMAZAKI,Kazuaki IRISAWA

 The purpose of this study is to investigate the cylic response and movements of the structure on sand layer by cyclic laboratory ...

Interpretation of Electric Cone Penetration Tests

Port and Airport Research Institute      0576

June, 1987


Masaki KOBAYASHI,Shigeo KOBAYASHI,Minoru YOSHIDA

 The static cone penetration test is a valuable tool for the in-situ investigation of soil deposits. Its main advantage is the pos...

Evaluation of hte Disturbance of Soils in Sampling Tubes with the Radiographic Test (Part-2) - The Method of Judgment of Cracks in Soils and the Mechanical Properties of Soils -

Port and Airport Research Institute      0575

June, 1987

Soil Investigations Laboratory
Ichiro ISHII,Minoru YOSHIDA,Hiroyasu HORIE

 The radiographic test has been carried out for soils in sampling tubes to investigate the state of soils. This test produces a ph...

The Economic Impact Analysis of Port Construction Works by Input-Output Analysis (Part 2)

Port and Airport Research Institute      0571

March, 1987

Design Standard Laboratory
Yuji TANIKAWA,Akira KANEKO

 Economic effect is caused to the industries in the resion where port works is carring out by port construction works. This econom...

Time Trend of Financial Condition of Port Management Body in Japan

Port and Airport Research Institute      0570

March, 1987

Design Standard Laboratory
Akira KANEKO,Matsuko NATSUUMI,Tomoo ISHIWATA

 In Japan ports are developed and managed as social infrastructure, not as public enteprises. However, financial condition of port...

Anuual Report on Wave Properties at the Network Stations (1985)

Port and Airport Research Institute      0574

March, 1987

Costal Obsevation Laboratory
Koji KOBUNE,Kazuteru SUGAHARA,Yutaka KAMETYAMA,Noriaki HASHIMOTO,Akira NARITA

 Since 1970, the Port and Harbour Research Institute has been cooperating with the Bureau of Ports and Harbours, Ministry of Trans...

Hydraulic Model Experiments on Reaeration Capacity of Seawall

Port and Airport Research Institute      0573

March, 1987

Environment Puriffcation Laboratory
Takeshi HORIE,Yasushi HOSOKAWA,Eiichi MIYOSHI,Yoshiyuki SEKINE

 Two different types of seawall and a 1/30 smooth slope are tested for the estimation of their aeration capacity with regular wave...

Development of Simple Input/Output System of TSS Terminal for General Purpose Computer

Port and Airport Research Institute      0569

March, 1987

Operation Branch
Yoshihiro SASAKI,Naoki OGAWA,Nasafumi TSUBATA

Simple input/output system of TSS terminals using a general purpose computer is developed. This report describes the advantage of ...

Examples of the Arrangements for Shore Protection Breakwaters Aimed for the Measuremenets against Erosion

Port and Airport Research Institute      0572

March, 1987

Design Standard Laboratory
Yoshiki ABE,Shinji KATAOKA

 This is the graphic booklet of the 30 plans of facilities for the arrangements of shore protection breakwaters, aimed for the mea...