Search for PARI Report/Technical Note
Properties of High Stability Asphalt Mixture
Port and Airport Research Institute 1280
December, 2013
Pavement Group
Naoya KAWAMURA,Yoshiyuki MORIKAWA,Masato MURAYAMA,Toshiaki HIRATO,Ryota MAEKAWA
High stability asphalt mixture has highly resistance to viscous deformation that is equal to semi-flexible pavement material under...
A Study on the Design Method of RC Caissons for Breakwaters Against Impact Loads Considering Maintenance Strategy
Port and Airport Research Institute 1279
December, 2013
Structural Mechanics Group
Yuichiro KAWABATA,Ema KATO,Mitsuyasu IWANAMI
In breakwaters covered with wave-dissipating blocks, outer walls of the caisson may show local failure in repeated collision of th...
Volume Contraction induced by Cyclic Shearing and Density Characteristics of Rock Debris
Port and Airport Research Institute 1278
December, 2013
Soil Dynamics Group
Yusuke GOTOH,Shinji SASSA,Hiroyuki YAMAZAKI,Hidenori TAKAHASHI,Eiji KOHAMA
Rock debris is used in reclaimed land of quay wall for liquefaction countermeasure, because it is a highly permeable material. How...
Study on New Construction Method for Deepening Caisson-Type Quay Walls
Port and Airport Research Institute 1277
December, 2013
Foundations Group
Takaaki MIZUTANI,Yoshiyuki MORIKAWA,Yoichi WATABE,Yoshiaki KIKUCHI,Kazuya GOUDA,Shigeyuki KAT,Tetsuya OGASAWARA
In recent years, there has been increasing demand to reduce costs for public works in Japan. Correspondingly, great efforts have b...
Effect of Wind and Fresh Water Discharge on Water Exchange and Hypoxia in Tokyo Bay
Port and Airport Research Institute 1276
September, 2013
Environment Information Group
Kojiro SUZUKI
Nutrient discharged in Tokyo Bay flows to the Pacific Ocean through the mouth of the Bay. The temperature of Tokyo Bay is also aff...
A Model Test about Subsidence of Breakwaters on Sandy Ground under Ocean Trench Type Long Period Earthquake
Port and Airport Research Institute 1275
September, 2013
Earthquake and Structural Dynamics Group
Yousuke OHYA,Eiji KOHAMA,Atsushi NOZU,Takahiro SUGANO
If a replaced sand layer by which clay was replaced in order to improve a breakwater foundation liquefies during an earthquake, a ...
Research on Stability of Opening Section at Baymouth Breakwater
Port and Airport Research Institute 1274
September, 2013
Junichiro SAKUNAKA,Taro ARIKAWA
The baymouth breakwater is to protect the port area from tsunami. It narrows the bay mouth and prevents tsunami from flowing in th...
Estimation of the Distribution and Coverage of Seagrasses Using Field Observation Data and Satellite Imagery
Port and Airport Research Institute 1273
June, 2013
Coastal and Estuarine Environment Group
Junichi KYODA,Tomohiro KUWAE
Seagrass meadows provide a variety of ecosystem services; the recent attention that seagrass systems are beginning to attract amon...
General Tendency of Nonlinear Behavior of Soft Soil Deposits during the 2011 Off the Pacific Coast of Tohoku Earthquake
Port and Airport Research Institute 1272
June, 2013
Engineering Seismology Group
Atsushi WAKAI,Atsushi NOZU
In order to understand the effects of strong ground motions on engineering structures, it is important to evaluate the effects of ...
Application of SPGA Model to Strong Motion Estimation for a Scenario Earthquake with Mw9.0 along the Nankai Trough
Port and Airport Research Institute 1271
June, 2013
Engineering Seismology Group
Atsushi NOZU,Atsushi WAKAI
The occurrence of the 2011 Tohoku earthquake (Mw9.0) along the Japan Trench motivated us to hypothesize an equally gigantic earthq...
Mechanism and Countermeasures for Recent Wave Overtopping Disasters for Long Period Swell
Port and Airport Research Institute 1270
June, 2013
Wave Group
Katsuya HIRAYAMA,Hiroaki KASHIMA
Recently, coastal disasters seem to increase due to storm waves exceeding the design wave for Japanese port’s and coastal faciliti...
Failure Mechanism and Resiliency of Breakwaters under Tsunami
Port and Airport Research Institute 1269
March, 2013
Taro ARIKAWA,Masaharu SATO,Kenichiro SHIMOSAKO,Takashi TOMITA,Gyeong-Seon YEOM,Tatsuya NIWA
Many breakwaters were damaged by the Great East Japan Earthquake of March 11, 2011. Many of these were destroyed under tsunami ove...
Development of Structural Design Method of Piers Considering Maintenance Strategy
Port and Airport Research Institute 1268
March, 2013
Structural Mechanics Group
Mitsuyasu IWANAMI,Ema KATO,Yuichiro KAWABATA
While almost all port and harbor facilities are designed to be in service for a period of 50 years or longer, it is not easy to ma...
Residual Structural Performance Evaluation of RC Superstructure of Open-Type Pier Damaged by Earthquake Ground Motion
Port and Airport Research Institute 1267
March, 2013
Structural Mechanics Group
Yuichiro KAWABATA,Mitsuyasu IWANAMI,Ema KATO,Takahiro NISHIDA
The port facilities have been recognized as emergent supply transporting base in order to provide assistance for rehabilitation of...
Annual Report on Strong-Motion Earthquake Records in Japanese Ports (2011)
Port and Airport Research Institute 1266
March, 2013
Engineering Seismology Group
Atsushi NOZU,Atsushi WAKAI
Since 1962, strong ground motions and earthquake responses of structures have been observed in the major ports in Japan. In 2011, ...
Annual Report on Nationwide Ocean Wave Information Network for Ports and Harbours (NOWPHAS 2011)
Port and Airport Research Institute 1265
March, 2013
Koji KAWAGUCHI,Tsutom INOMATA,Katsumi SEKI
Since 1970, the Ports and Harbours Bureau, Ministry of Land, Infrastructure, Transport and Tourism and its associated organization...