Search for PARI Report/Technical Note
Development of Mud Layar Density Meter by Using Raido Isotope
Port and Airport Research Institute 030-04-04
December, 1991
Instrumental Construction Control Laboratory
Koji ISHIZUKA,Takashi NEMOTO
The large volume of fluid mud deposits with softsediment properties like silty sand or clay in the approach channels has become t...
Strength and Deformation Characteristics of Clays due to Cylic Loading
Port and Airport Research Institute 030-04-03
December, 1991
Hiroyuki YAMAZAKI,Kouki ZEN,Hiroki KAGAYA,Toru TACHISHITA
The stiffness degradation and strength reduction of clays due to cyclic loading are investigated with both the cyclic and static ...
Probabilistic Estimation of Stability of Slide for Caisson Type Breakwater
Port and Airport Research Institute 030-04-02
December, 1991
Tomotsuka TAKAYAMA,Hisashi FUJII
The present paper proposes an estimation method for the evaluation of the degree of instability of a caisson type breakwater. The ...
Experimental Study on Wave Forces Acting on Perforated Wall Caisson Breakwaters
Port and Airport Research Institute 030-04-01
December, 1991
Maritime Structues Laboratory
Shigeo TAKAHASHI,Ken-ichirou SHIMOSAKO,Hitoshi SASAKI
A series of model experiments have been carried out in order to investigate the characteristics of wave forces acting on perforat...
Development of Small-size Measuring Instrument for Underwater Execution Control
Port and Airport Research Institute 030-03-03
September, 1991
Instrumental Construction Control Laboratory
Koji ISHIZUKA,Takashi NEMOTO
Conventional way of underwater inspecting work of rubble mound for breakwaters is necessry to do improvement because of severe co...
Applicability of Electrodeposition as a Repairing Method for Deteriorated Marine Concrete Structures
Port and Airport Research Institute 030-03-02
September, 1991
Masami ABE,Tsutomu FUKUTE,Masaru YOKOTA,Harutosi SASAKI
Applicability of electrodeposition method for repairing method of deteriorated by sea water was studied. A series of in site and ...
Constant Rate of Strain test of Undisturbed Alluvial Marine Clay
Port and Airport Research Institute 030-03-01
September, 1991
Jun-ichi MIZUKAMI,Masaki KOBAYASHI,Kazuhiro KOIZUMI
Constant Rate of Strain (CRS) tests were carried out on three types of undisturbed and two types of remolded clays. CRS test is o...
Investigation of Cross-shore Sediment Transport Rates and Flow Parameters in the Surf Zone using Field Data
Port and Airport Research Institute 030-02-01
June, 1991
Yoshiaki KURIYAMA
Field measurements have been carried out by using a 427m long pier in high and low wave conditions. Horizontal current velocities...
Fluidity Characteristics of Muddy Slurry with Compressed Air in Horizontal Pipe
Port and Airport Research Institute 030-02-13
June, 1991
Dredging and Reclamation Laboratory
Yoshikuni OKAYAMA,Motokazu AYUGAI,Makoto SUZUKI,Hiroya FUKUMOTO
In recent activites on port and harbor construction works, many trials on the transportation of dredged soft mud thorough horizon...
Development on Aquatic Walking Robot for Underwater Inspection - (Second Report) Design of the Light-weight Type Aquatic Walking Robot-
Port and Airport Research Institute 030-02-12
June, 1991
Instrumental Construction Control Laboratory
Osamu ASAKURA,Jun'ichi AKIZONO,Mineo IWASAKI,Takashi NEMOTO,Takashi NEMOTO
To answer the demand for smaller mother ship and easy operation, light-weight type was designed and manufactured during 1987-1988...
Mechanical Properties of Long Caisson Subjected to Torsion
Port and Airport Research Institute 030-02-11
June, 1991
Structual Mechanics Laboratory
Osamu KIYOMIYA,Masao YAMADA
A long caisson is proposed to reduce wave force and construction work. The long caisson is subjected to torsion due to wave force ...
Circular Arc Analysis of Earthquake Damage Of Embankments on Saturated Sand Layers
Port and Airport Research Institute 030-02-10
June, 1991
Earthquake Disaster Prevention Laboratory
Tatsuo UWABE,Makoto OSADA
Data of embankments damaged by big earthquakes occurred from the Kanto earthquake to the 1983 Nihonkai-Chubu Earthquake were coll...
Analysis of Deformation in Sheet Pile Quaywall due to Liguefaction
Port and Airport Research Institute 030-02-09
June, 1991
Geotechnical Earthquake Engineering Laboratory
Susumu IAI,Tomohiro KAMEOKA
In 1983, Nihonkai-Chubu Earthquake of magnitude 7.7 hit northern part of Japan. The earthquake caused damage to quaywalls at Akit...
Influence of a slope on the lateral resistance of a long pile
Port and Airport Research Institute 030-02-08
June, 1991
Masaaki TERASHI,Masaki KITAZUME
Long piles are ofen used in or near the crest of the slope of the sand mound in the port constructions. The influence of the slop...
Reliability of clay ground improved by the group column type DMM with high replacement
Port and Airport Research Institute 030-02-07
June, 1991
Masaki KITAZUME,Takeshi NAKAMURA,Masaaki TERASHI
Deep Mixing Method (DMM), a deep in-situ admixture stabilization, has been developed in Japan to reinforce soft alluvial clays. I...
Finite Element Analysis of the Effectiveness of Sand Drains
Port and Airport Research Institute 030-02-06
June, 1991
Masaki KOBAYASHI
Sand drains have been widely used as one of the most popular soil improvement method. In the Japanese highway construction, test ...
Lateral Resistance of a Pile in Rubble Mound
Port and Airport Research Institute 030-02-05
June, 1991
Kunio TAKAHASHI,Yukifumi IKKI
Foundation piles of piers are always surrounded by rubble mounds. Although the rubble must restrict lateral movement of piles, it...
Performance of Vertical Drains for Soft and Ununiform Soils
Port and Airport Research Institute 030-02-04
June, 1991
Geotechnical Survey Laboratory
Hiroyuki TANAKA,Kazumi OHTA,Takahide MARUYAMA
In Japan recently the coastal area is often reclaimed by soft clayey soil due to difficulty in obtaining sand or deposition of dr...
Modeling of Discrete Vortices Induced by an Inclined Flat Plate
Port and Airport Research Institute 030-02-03
June, 1991
Yasushi HOSOKAWA,Keita FURUKAWA
Unsteady separated flow behind a structure causes various effects around them hydrodynamically and environmentally. This paper de...
Characteristics of the motion and tension of a ferry moored in a storm
Port and Airport Research Institute 030-02-02
June, 1991
Tetsuya HIRAISHI,Satoshi HONJYO
A ferry-mooring system for the storm condition should be established to raise up the safety of voyage and to keep the schedule. T...