About Research

Search for PARI Report/Technical Note

Search object both
Keywords
Year
Department
/Division
1〜20 articles out of 30 articles

Dynamic Soil and Water Pressures due to Saturated Backfills on Non-yielding Rigid Vertical Walls

Port and Airport Research Institute      032-04-01

December, 1993

Earthquake Disaster Prevention Laboratory
Isao ISHIBASHI,Tatsuo UWABE,Makoto OSADA,Takemitsu TAKANO

 One directional horizontal) shaking table experiments were conducted on saturated two cohesive and one sandy backfills to investi...

Modification of Extended Maximum Entropy Principle Method for Estimating Directional Spectrum in Incident and Reflected Wave Field

Port and Airport Research Institute      032-04-02

December, 1993

Maritime Obsevation Laboratory
Noriaki HASHIMOTO,Toshihiko NAGAI,Tadashi ASAI

 In this report, first, several existing methods for estimating directional spectrum in incident and reflected wave field are disc...

The Hokkaido-Southwest-Earthquake Tsunami Profiles Observed at the NOWPHAS Offshore Stations

Port and Airport Research Institute      032-04-03

December, 1993

Maritime Obsevation Laboratory
Toshihiko NAGAI,Noriaki HASHIMOTO,Tadashi ASAI

 The Hokkaido-Southwest-Earthquake occured at 22:17 on July 12th in 1993. It was reported that the magnitude of the earthquake was...

Longshore current distribution on a bar-trough beach -Field measurements at HORF and numerical model-

Port and Airport Research Institute      032-03-01

September, 1993


Yoshiaki KURIYAMA,Yasushi OZAKI

 Field measurements of longshore current have been carried out at Hazaki Oceanographical Research Facility (HORF)with a float when...

Wave Prediction by Multiple Regression Model with Coastal Wave Observation Data

Port and Airport Research Institute      032-03-02

September, 1993

Ocean Energy Utilization Laboratory
Toshio AONO,Chiaki GOTO,Kazuo SATO

 One of the wave forecasting models applied relatively easily to port construction sites is a multiple regression model which uses...

A Hindcast of Maritime Surface Wind Including Effects of Land Topography

Port and Airport Research Institute      032-03-03

September, 1993

Ocean Energy Utilization Laboratory
Chiaki GOTO,Hidenori SHIBAKI

 Maritime surface wind, which is used as external force condisions for wave hindcasting and storm surge simulation, is investigate...

Behaviour of Sheet Pile Walls in the Improved Ground by Sand Compacion Piles of Low Replacement Area Ratio

Port and Airport Research Institute      032-02-05

June, 1993


Masaki KITAZUME,Kiyoharu MURAKAMI

 In the construction of port facilities, normally consolidated alluvial clay deposit often found in Japanese coastal area raise di...

Evaluation of the Optimal Cross Section of Breasting Dolphins by use of Cost-benefit Analysis

Port and Airport Research Institute      032-02-06

June, 1993

Offshore Structures Laboratory
Satorau SHIRAISHI,Shigeru UEDA

 In this report, it is described the evaluation method of optimal cross section of breasting dolphins of deepwater terminals for c...

An Experimental Study on Mortars to Assess the Durability of Massive Concrete

Port and Airport Research Institute      032-02-07

June, 1993


Tsutomu FUKUTE,Atsurou MORIWAKE,Yasunori SUZUKI

 This paper examined the influence of high temperature during the initial curing period on the durability of massive concrete. For...

Static Earth pressure Characteristics of Cement Treated Sand by Premixing Method

Port and Airport Research Institute      032-02-04

June, 1993


Kouki ZEN,Hiroyuki YAMAZAKI,Toru TACHISHITA,Keisuke NAGASAWA

The characteristics of static earth pressure of cement treated sand were investigated by model experiment. Model grounds were cons...

Annual Fluctuation of the Observed Coastal Waves and Singularities of High and Low Wave Condition

Port and Airport Research Institute      032-02-03

June, 1993

Maritime Obsevation Laboratory
Toshihiko NAGAI,Kazuteru SUGAHARA,Noriaki HASHIMOTO,Tadashi ASAI

 This paper introdeces several interesting facts obtained from the 20-year NOWPHAS (Nationwide Ocean Wave information network for ...

On the properties of the Directional Wave Spectra Observed in Deep Seas (1st Report: The Field Observation off Iwaki)

Port and Airport Research Institute      032-02-02

June, 1993

Maritime Obsevation Laboratory
Toshihiko NAGAI,Noriaki HASHIMOTO,Tadashi ASAI

 The field observation in deep seas was started at Iwaki off-shore wave observation station (h=-154m), 42km off the Pacific coast ...

Development of Tsunami Numerical Simulation System for Sanriku Coast in Japan

Port and Airport Research Institute      032-02-01

June, 1993

Ocean Energy Utilization Laboratory
Chiaki GOTO,Kazuo SATO

 For prevention of tsunami disasters, a tsunami numerical simulation system for Sanriku Coast in Japan is developed. The system de...

On The Characteristics of One-Dimensional Spectra And Non-dimensional Parameters of Wind Waves - Wave Hindcast Model Using the Hybrid-parameter Method (2nd report)-

Port and Airport Research Institute      032-01-03

March, 1993

Ocean Energy Utilization Laboratory
Chiaki GOTO,Toshio AONO

 In order to obtain the basic knowledge on growth of wind waves, relationship between wind speed and significant wave parameters a...

Surface Wave Recovery from Subsurface Pressure Record on the Basis of Weakly Nonlinear Directional Wave Theory

Port and Airport Research Institute      032-01-02

March, 1993

Maritime Obsevation Laboratory
Noriaki HASHIMOTO,Toshihiko NAGAI,Kazuteru SUGAHARA,Tadashi ASAI,Kyung-Soo BAHK

 In this report, we investigate the characteristics between surface waves and pressure waves in detail on the basis of weakly nonl...

Fluidity Characteristics of Muddy Slurry with Compressed Air in Horizontal Pipe

Port and Airport Research Institute      31-05-12

March, 1993

Dredging and Reclamation Laboratory
Yoshikuni OKAYAMA,Takeyuki FUJIMOTO,Motokazu AYUGAI,Makoto SUZUKI,Hiroya FUKUMOTO

 In recent activities on port and harbor construction works, many trials on the transportation of dredged soft mud with high densi...

Development of an Aquatic Walking Robot for Underwater Inspection

Port and Airport Research Institute      031-05-11

March, 1993


Hidetoshi TAKAHASHI,Mineo IWASAKI,Junichi AKIZONO,Osamu ASAKURA,Shigeki SHIRAIWA,Katsuei NAKAGAWA

 An underwater robot, Aquarobot, is a robot for underwater inspections in place of divers in port construction works. The Aquarobo...

Applications of a Ship Maneuvering Simulator to Port and Harbor Planning

Port and Airport Research Institute      031-05-10

March, 1993


Yoshinobu HAYAFUJI,Kenji HAMADA,Yuichi KURODA,Koji SAKAI

 Recently, it has become available to use high and accurate ship handling simulator in various fields. This paper reports some pra...

A Study on Durability of Concrete Exposed in Marine Environment for 20 Years

Port and Airport Research Institute      031-05-09

March, 1993


Tsutomu FUKUTE,Hidenori HAMADA

 In this study, long term durability of marine concrete is investigated. This study was started in 1970 at Port and Harbour Resear...

Analysis of Liquefaction Induced Damage to Sheet Pile Quay Walls

Port and Airport Research Institute      031-05-08

March, 1993

Geotechnical Earthquake Engineering Laboratory
Susumu IAI,Tomohiro KAMEOKA

In order to study the effects of liquefaction on quay walls during earthquakes, effective stress analyses are conducted on the fie...