Search for PARI Report/Technical Note
Ground Failure and Stability Evaluation of Seawalls Subjected to High Waves
Port and Airport Research Institute 61-2-1
December, 2022
Soil Stabilization Group
Hidenori TAKAHAS
Damage to seawalls caused by high waves still occurs even today, and one of the patterns ofdamage is failure involving ground. It ...
Perspective on Seismic Design of Pile-Supported Wharves for Level-2 Ground Motions
Port and Airport Research Institute 1405
September, 2022
Foundations Group
Ryunosuke TAWATARI , Takaaki MIZUTANI , Atsushi NOZU , Eiji KOHAMA , Yousuke OHYA , Akihiko KONDO , Ema KATO , Yuichiro KAWABATA , Yutaka TANAKA , Masahiro TAKENOBU , Satoshi MATSUMURA , Naohiro HAMAMOTO , Kohei INADA
We held a seminar in 2021 for the purpose of identifying and sharing current issues on seismic design for pile-supported wharves d...
Study on volume reduction method for dredged soil by electro-osmosis -An investigation into applicability of electro-osmosis in clays-
Port and Airport Research Institute 1404
June, 2022
Soil Mechanics and Geo-Environment Group
Yuri SUGIYAMA, Daiki TAKANO, Yoshiyuki MORIKAWA
A large amount of soil is dredged every year due to dredging for the purposes of maintaining sea routes and harbors and deep
Study of applicability of surface coating material in port concrete structures
Port and Airport Research Institute 1403
June, 2022
Materials Group
Toru YAMAJI, Masashi YAMAMOTO
Port concrete structures may suffer chloride attack (rebar corrosion) due to chloride ions supplied from seawater. In the case of ...
Development of Assembled Precast Pier with Crimped Construction by Prestressing -Quick and Labor-saving Construction Method with Factory-produced Precast Concrete Members-
Port and Airport Research Institute 61-1-2
June, 2022
Structural Mechanics Group
Yutaka TANAKA・Katsuya IKENO・Arata ISHIZUKA・Tomohiro TANAKA・Shunsuke KANAEDA Yuuki KURIHARA・Yoshiaki MAE・Kimihiko AMAYA・Sumire NAKAMURA・Yuichiro KAWABATA Ema KATO・Mitsuyasu IWANAMI
In order to increase the construction productivity, it is required to utilize precast concrete members at construction sites. In t...
Data Assimilation Experiment by Regional Coastal Data Assimilation Method for Ise Bay Simulator throughout the Year: Perturbation of Boundary Conditions to Create Appropriate Ensembles in Coastal Estuary Modeling
Port and Airport Research Institute 61-1-1
June, 2022
Marine Pollution Management Group
Yoshitaka MATSUZAKI Tetsunori INOUE
This paper is a Japanese translation of the article “Perturbation of Boundary Conditions to Create Appropriate Ensembles for Regio...
Investigation for Durability of Corrosion Prevention by Petrolatum Lining
Port and Airport Research Institute 1402
March, 2022
Materials Group
Takahiro NISHIDA,Toru YAMAJI,Nagate HASHIMOTO,Yoshiyuki KAWASE,Shinsuke SHIZURU,Takuya ICHINOSE,Atsumi IMAI,Atsushi KOBAYASHI,Michio YOSHIDA
In this paper, the degradation mechanism of petrolatum-coated anticorrosion system and the effective evaluation method of petrolat...
A Composite Source Model Capable of Generating Fling Steps
Port and Airport Research Institute 1401
March, 2022
Engineering Seismology Group
Atsushi NOZU,Shuanglan WU,Yosuke NAGASAKA
During large crustal earthquakes, strong ground motions with a significant amount of residual displacement are observed if the rup...
Guideline for Maintenance and Management of PC Wharf Superstructure for Port Engineers
Port and Airport Research Institute 1400
March, 2022
Structural Mechanics Group
KATO Ema, TANAKA Yutaka,KAWABATA Yuichiro,OGASAWARA Tetsuya,WATASE Hiroshi, ISHI Tsuyoshi, KAWABE Shusaku, MIYAZAWA Akira,NAKAYAMA Yoshinao, NAKAJIMA Michio, TATEGAMI Hisao, YONEKURA Nobuyuki,AMEMIYA Yoshiko, SUZUKA Yoshikazu, FUJIMURA Tatsuyuki
From the 1960s to the present, more than 400 open-type wharves with prestressed concrete superstructure were constructed in Japan....
Fundamental Study on the calculation of CO2 emissions from construction of port structures -Investigation on the pre-estimation method and trial calculation of CO2 emissions from construction of port structures-
Port and Airport Research Institute 1399
March, 2022
Technologies for Structures Group
Sumire NAKAMURA,Yuichiro,KAWABATA,Daisuke TATSUMI
As the world moves toward carbon neutrality, efforts are underway to achieve Carbon Neutral Port (CNP) in the Japanese port sector...
Annual Report on Nationwide Ocean Wave Information Network for Ports and Harbours (NOWPHAS 2020)
Port and Airport Research Institute 1398
March, 2022
Marine Information Group
Koji KAWAGUCHI,Kanichiro,YOSHIDA,Hitoshi TAMURA
Since 1970, the Ports and Harbours Bureau, Ministry of Land, Infrastructure, Transport and Tourism and its asso-ciated organizatio...
Experiments on Resistance of Various Wood Materials against Marine Borers and Weathering
Port and Airport Research Institute 1397
March, 2022
Coastal and Estuarine Environment Group
Masao YAMADA
Wood is a material formed from water and carbon dioxide by solar energy, and its use is expected to expand in the transition to a ...
Proposal and Performance Test of Attachment for Realization of Remote Operation of Rubble Mound Leveling Work with Underwater Backhoe
Port and Airport Research Institute 1396
December, 2021
Meta-Robotics Group
Tsukasa KITA,Taketsugu,HIRABAYASHI,Shunsuke TAKAO,Hiroshi KINJO,Naoki OSHIRO,Atsushi UEYAMA
Leveling work of rubble mound is one of the typical work of port construction. At present, this work is mainly carried out by han...
Statistical Analysis on Parallel Body Lengths and Wind Receiving Areas of Ships
Port and Airport Research Institute 1395
December, 2021
Haruo YONEYAMA,Hiroaki KASHIMA
The parallel body length and wind receiving areas of a ship are used for calculating the ship berthing energy in fender design an...
Annual Report on Strong-Motion Earthquake Records in Japanese Ports (2019)
Port and Airport Research Institute 1394
December, 2021
Engineering Seismology Group
Yosuke NAGASAKA,Atsushi NOZU
Since 1962, strong ground motions and earthquake responses of structures have been observed in the major ports in Japan. In 2019,...
Caisson Joint Wave Reduction Method for Suppressing Internal Erosion and Collapse of Seawalls and Quaywalls
Port and Airport Research Institute 1393
December, 2021
Soil Dynamics Group
Shinji SASSA,Osamu ISHIZAKA
Collapse at the back sides of seawalls and quaywalls has occurred all over the world. This often stems from defects in caisson jo...
Study of maintenance for cathodic protection applied to marine steel structures
Port and Airport Research Institute 1392
December, 2021
Materials Group
Toru YAMAJI,Masayuki HARA,Ken-ichi NOTOYA,Nobumitsu YAMANOBE, Yasuhiro TAKAHASHI,Shigenori KOBAYASHI,Masaharu WATANABE
In the general periodic inspection diagnosis of cathodic protection applied to marine steel structures, we can get quantitative in...
Large-scale Model Test for the Bearing Capacity of Open-ended Straight and Tapered Piles
Port and Airport Research Institute 1391
December, 2021
Foundations Group
Keita NAKAMURA,Yusuke MOTOMIZU,Satoshi MATSUMURA,Takaaki MIZUTANI,Eiji OSHITA,Satoshi SHINGAI,Yasutaka SAKAMOTO,Naoaki SUEMASA
It is well known that the bearing capacity of open-ended piles with a constant pile diameter used in port and harbor facilities d...
Analytical Study on the Bearing Capacity of Open-ended Straight and Tapered Piles Using MPM
Port and Airport Research Institute 60-3-2
December, 2021
Foundations Group
Keita NAKAMURA,Satoshi MATSUMURA,Takaaki MIZUTANI
It is well known that the bearing capacity of open-ended pipe piles used in port and harbor facilities depends on the so-called “s...
Numerical Analysis on Structural Performance of Deteriorated Open-Type Wharf with Prestressed Concrete Superstructure
Port and Airport Research Institute 60-3-1
December, 2021
Structural Mechanics Group
Yutaka TANAKA,Yuichiro KAWABATA, Ema KATO,Yoshikazu SUZUKA,Shusaku KAWABE,Michio NAKAJIMA,Tsuyoshi ISHI,Hisao TATEGAMI,Tetsuya OGASAWARA
An open-type wharf with the prestressed concrete superstructure, PC wharf, consists of pretensioned hollow girders joined atop a c...