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21〜35 articles out of 35 articles

A New Method for Calculating the Bearing Capacity of Rubble Mounds

Port and Airport Research Institute      026-02-10

June, 1987


Masaki KOBAYASHI,Masaaki TERASHI,Kunio TAKAHASHI,Kenjirou NAKASHIMA,Hiraku ODANI

 Accoring to the current design method, results of several formulae must be combined to analyse the stability of gravity type stru...

Interference Effect on Bearing Capacity of Foundations on Sand

Port and Airport Research Institute      026-02-11

June, 1987


Masaaki TERASHI,Masaki KITAZUME

 Interference effect on bearing capacity of closely-spaced shallow foundations on sand was studied. A series of centrifugal model ...

Inffuence of Pile Width on Lateral Reaction of Sandy Subgrade

Port and Airport Research Institute      026-02-12

June, 1987


Kunio TAKAHASHI,Yasuo KASUGAI

 In the PHRI method of calculating lateral resistances of piles, the lateral resistance constant in subsoils is considered to be u...

On Wave Attenuation and Flowing of Mud Layer due to an Interaction of Waves with a Mud Bottom

Port and Airport Research Institute      026-02-06

June, 1987

Hydrodynamics Laboratory
Susumu NAKANO,Hiroichi TSURUYA,Jun TAKAHAMA

 A multi-layered viscous fluid model is proposed to investigate interactions between surface waves and a mud bottom. In the model ...

Development of Non-Destructive Evaluating Method of Concrete Pavement-by Falling Weight Deflectometer

Port and Airport Research Institute      026-02-13

June, 1987


Yoshitaka HACHIYA,Katsuhisa SATO,Takashi TANAKA

 Non-destructive evaluating method of concrete pavement using Falling Weight Deflectometer (FWD) was developed.(1) In order to min...

Study on the Method of Verification of Structural Safety of Port and Offshore Structures. -Computation of Coefficients of Variation of Loads and Load Factors.-

Port and Airport Research Institute      026-02-14

June, 1987


Satoru SHIRAISHI,Shigeru UEDA

 In this paper, following studies on the verification of structural safety of port and offshore structures are carried out. 1) It ...

Mechanical Properties and Structural Analyses of New Types of Footing Used in Breakwater Caissons

Port and Airport Research Institute      026-02-15

June, 1987


Hiroshi YOKOTA,Osamu KIYOMIYA

 Static loading tests were carried out to investigate the mechanical properties of breakwater caissons with buttress-footing and b...

Measurements of Turbulent Flow Downstream of a Submerged Structure

Port and Airport Research Institute      026-02-05

June, 1987

Hydrodynamics Laboratory
Hiroichi TSURUYA,Yoshikuni MATSUNOBU,Tomoaki KOREZUMI,Shin-ichi YANAGISHIMA

 A series of measurements of turbulent flow in two components behind submerged structures has been carried out in the P.H.R.I. wat...

Estimation of Directional Spectra from a Bayesian Approach

Port and Airport Research Institute      026-02-04

June, 1987

Costal Obsevation Laboratory
Noriaki HASHIMOTO

 So far, several methods for the estimation of directional spectra have been proposed and improved. However, none of these methods...

Daily changes of shoreline position and its tentative predictive model

Port and Airport Research Institute      026-02-03

June, 1987


Kazumasa KATOH,Shin-ichi YANAGISHIMA,Hiroyuki MURAKAMI,Kohji SUETSUGU

Beach profiles have been being measured every day on sandy beach at Hazaki Oceanographical Research Facility (HORF), facing to the...

Fatigue Properties of Prestressed Concrete Beam-to-Column Joints for Waves

Port and Airport Research Institute      026-02-02

June, 1987

Subaqueous Tunnels and Pipelines Laboratory
Osamu KIYOMIYA,Hiroshi YOKOTA,Toshiyuki YOKOI,Muneto ABE,Osamu KOHRIYAMA,Koichi MINAMIKAWA,Kunihiro MUKAI

 In this study, dynamic loading tests for monolithic joints and cast-in-place concrete joints were carried out to know their fatig...

Bearing Capacity of a Foundation on Top of High Mound Subjected to Eccentric and Inclined Load

Port and Airport Research Institute      026-02-01

June, 1987


Masaaki TERASHI,Masaki KITAZUME

A series of model tests was carried out using PHRI geotechnical centrifuge. By the test data, a failture envelope of spindle shape...

Development of New Joint for Concrete Pavements

Port and Airport Research Institute      026-01-03

March, 1987


Yoshitaka HACHIYA,Katsuhisa SATO,Takashi TANAKA

 Concrete pavements incorporating various types of innovative jointing systems have been tested and numerical analysis has been ca...

Experimental Study on Shear Modulus and Damping Ratio of Natural Deposits for Seismic Response Analysis

Port and Airport Research Institute      026-01-02

March, 1987


Kouki ZEN,Hiroyuki YAMAZAKI,Yasufumi UMEHARA

 This study investigates the shear modulus and damping ratio of natural deposits with the resonant cyclic triaxial test and the in...

Variation of Wave Power Extraction due to Incident Angle and Directional Wave Spreading -A Study on Development of Wave Power (5th Report)-

Port and Airport Research Institute      026-01-01

March, 1987

Wave Power Laboratory
Shigeo TAKAHASHI,Kazuyuki MYOSE,Yasutoshi YOSHIMOTO,Satoru TANAKA

 A wave power extraction system is under development at the Port and Harbour Res. Inst. The extractor is essentially a caisson to ...