Search for PARI Report/Technical Note
Development and application of integrated platform for predicting and evaluating coastal benthic ecology-geoenvironmental dynamics
Port and Airport Research Institute 59-3-2
December, 2020
Soil Dynamics Group
Soonbo YANG・Shinji SASSA・Kenta KUDAI・Kouhei TAKADA
The purpose of this study is to develop an integrated platform to predict and evaluate coastal benthicecology-geoenvironmental dyn...
Processes of internal erosion, cavity formation and collapse under various soil and hydraulic conditions with their countermeasure using geotechnical filter
Port and Airport Research Institute 59-3-1
December, 2020
Soil Dynamics Group
Kenta KUDAI・Shinji SASSA・Soonbo YANG・Kouhei TAKADA・Kojiro SUZUKI
A series of processes of internal erosion, cavity formation and its collapse was investigated under various soil and hydraulic con...
Investigation of Applicability of Coral Based Aggregate on Marine Concrete Structures
Port and Airport Research Institute 59-2-1
September, 2020
Materials Group
Takahiro NISHIDA,Toru YAMAJI,Kazuhide YONAMINE,Osamu TANIGUCHI,Ryoichi TANAKA,Hiroshi TAKENAKA,Osamu KIYOMIYA
In the southern part of the Japanese mainland, many coral limestone rocks have been deposited. In remote islands in such areas, i...
Advanced Method for Identification of Windsea and Swell on the Multi-modal Directional Wave Spectrum
Port and Airport Research Institute 59-2-4
September, 2020
Takashi FUJIKI,Koji KAWAGUCHI
Though the directional wave spectrum can show multi-modal features under confused sea conditions with windsea and swell, there is ...
Interface shear properties between steel-slag-mixed dredged soils and different materials
Port and Airport Research Institute 59-2-3
September, 2020
Foundations Group
Satoshi MATSUMURA,Takaaki MIZUTANI,Yoshiyuki MORIKAWA,Yuzo AKASHI,Hideki HONDA,Masahiro SHIMIZU
A steel-slag-mixed dredged soil is used to improve a backfilling soil of quay walls. In that case, interface shear properties betw...
Centrifuge Model Tests for Investigation of Instability of Seawall Ground Due to Ocean Waves
Port and Airport Research Institute 59-2-2
September, 2020
Soil Stabilization Group
Hidenori TAKAHASHI
Many seawalls have been damaged due to high waves and tides. Recently, the frequency and scale of typhoons are increasing, and the...
Fundamental Study on Harbor Waves Sheltered by Impermeable Submerged Breakwater
Port and Airport Research Institute 59-1-2
June, 2020
Wave Group
Katsuya HIRAYAMA・Yuuki HAMANO・Junya NAGANUMA
Drawing up a business continuity plan (BCP) for a harbor, it may be important to estimate a remained performance of a breakwater w...
Field Observation and Statistical Analyses of the Fugacity of Carbon Dioxide in Shallow Coastal Waters
Port and Airport Research Institute 59-1-1
June, 2020
Coastal and Estuarine Environment Group
Kazufumi TADA・Tatsuki TOKORO・Kenta WATANABE・Tomohiro KUWAE
Blue Carbon is the carbon taken up by marine organisms and stored in the ocean. Shallow coastal ecosystems store approximately 80%...
Development of Seismic Improvement Method for Pile Supported Wharf Utilizing Existing Pile
Port and Airport Research Institute 58-2-2
February, 2020
Earthquake and Structural Dynamics Group
Akihiko KONDO・Eiji KOHAMA・Yasuhiro TAKAHASHI・Hideki YOSHIDA・Kenji WATANABE・Hayato KOKUSHO・Shun AMANO・Moemi OYAMA・Shohei NAGASE・Takao FUJISAWA・Nobuyuki OKAJIMA・Tetsushi ABE・Masashi INOUE・Tohru YOSHIHARA・Mutsuro TSUKUDA・Tomoyuki UEDA・Noriyoshi HARATA・Naoya
In recent years, the demand of improvement for existing port and harbor structures is increasing due to decreasing their tolerance...
Development of Visualization Method of Inter-particle Force Distribution by Using Mechanoluminescent-coated Particle and Its Application
Port and Airport Research Institute 58-2-1
February, 2020
Earthquake and Structural Dynamics Group
Akihiko KONDO・Daiki TAKANO・Eiji KOHAMA・Richard J. BATHURST
In designing port and airport facilities, it is important to investigate the deformation and failure modes of the target structure...