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1〜20 articles out of 31 articles

Vibratory Response of a Laterally Constrained Silty Clay Subjected to a Longitudinal Vibration

Port and Airport Research Institute      011-04-01

December, 1972


Yasufumi UMEHARA

Laboratory tests, using the resonant column method, were conducted to evaluate the dynamic properties of compacted silty clay unde...

Study on Design Wave Forces on Circular Cylinders Erected upon Reefs

Port and Airport Research Institute      011-04-02

December, 1972

Wave Laboratory
Yoshimi GODA,Tatsuhiko IKEDA,Tadashi SASADA,Yasuharu KISHIDA

A new formula is proposed on the basis of wave force measurements in laboratory with model reefs of circular and ledge types. The ...

Unconfined compression strength of soils of intermediate grading between sand and clay

Port and Airport Research Institute      011-04-03

December, 1972

Head of Soils Division
Akio NAKASE,Masaru KATSUNO,Masaki KOBAYASHI

In order to investigate a parctical treatment of undrained shear strength of soils of intermediate grading between sand and clay, ...

Deep-Lime-Mixing Method for Soil Stabilization (second Report)

Port and Airport Research Institute      011-04-04

December, 1972


Tatsuro OKUMURA,Masaaki TERASHI,Tsukasa MITSUMOTO,Tadahiro SAKAI,Tomio YOSHIDA

In the first report, the authors reviewed the basic knowledge about the lime-soil reaction and described the possibility of the De...

Study on Layer Equivalencies of Bases in Airport Pavements

Port and Airport Research Institute      011-04-05

December, 1972

Runways Laboratory
Hiroshi SUDA,Katsuhisa SATO

The object of this study is to investigate the layer equivalencies of bases in airport pavements. Seventeen sections of airport te...

Characteristics of Base-Rock Motions Calculated from Strong-Motion Accelerograms at Ground Surface

Port and Airport Research Institute      011-04-06

December, 1972

Earthquake Resistant Struetures Laboratory
Hajime TSUCHIDA,Tatsuo UWABE

Characteristics of base-rock motions during earthquakes are studied based upon the multiple reflection theory. 37 accelerograms ob...

A experimental study on the interaction between trench type tunnels and soils

Port and Airport Research Institute      011-04-07

December, 1972


Yoshinori AOKI,Tamio TABUCHI

A new device so-called ground strain simulator have been built by which an arbitrary deformation can be applied to the soil in the...

Spectra of Earthquake Resistive Design of Trench Type Tunnel

Port and Airport Research Institute      011-04-08

December, 1972


Yoshinori AOKI,Hiroshi MARUYAMA

Existing earthquake resistive design methods of trench type tunnels can be classified into two; the design method by design spectr...

System Design of Transitscheds and Warehouses (Part-1)

Port and Airport Research Institute      011-04-09

December, 1972

Systems Laboratory
Kazuo KUDO

Transitsheds and warehouses of general cargo berths have been analysed as a type of stochastic process. Governning factors in the ...

Shock Forces on a Spud of Working Craft

Port and Airport Research Institute      011-04-10

December, 1972


Isamu HIRAYAMA,Toru KIKUYA,Taisei KOIWA

This paper reports the result of vertical shock forces on a spud of working craft for sand, gravel, concrete and granite, and also...

Dynamic Response of an Offshore Platform to Random Waves

Port and Airport Research Institute      011-03-03

September, 1972

Head of Hydraulic Engineering Division
Yoshiyuki ITO,Katsutoshi TANIMOTO,Koji KOBUNE

 The dynamic response of an offshore platform with four pile legs in the 30m water depth is investigated theoretically to random w...

Wave Height Distribution in the Region of Ray Crossings -Application of he Numerical Analysis Method of Wave Propagation-

Port and Airport Research Institute      011-03-04

September, 1972

Head of Hydraulic Engineering Division
Yoshiyuki ITO,Katsutoshi TANIMOTO,Shoichi YAMAMOTO

Since the conventional wave refraction theory for surface water waves is based on geo-optic approximation, it fails to predict wav...

A study on the velocity distribution of mass tranport caused by diagonal. partial standing waves

Port and Airport Research Institute      011-03-05

September, 1972


Norio TANAKA,Isao IRIE,Hiroaki OZASA

The pattern of scouring due to waves around offshore breakwaters may be correlated well with the distribution of water particle ve...

Wave Making Resistance due to Oscillation of Circular Cylinder

Port and Airport Research Institute      011-03-02

September, 1972

Head of Hydraulic Engineering Division
Yoshiyuki ITO,Tsutomu KIHARA

 The dynamic behaviour of a vertical circular cylinder exerted by wave forces is discussed on the basis of the calculation of wave...

A Study on Aircraft Load Distribution Through Bases to a Subgrade -Design Load of a Jumbo Jet-

Port and Airport Research Institute      011-03-06

September, 1972

Runways Laboratory
Katsuhisa SATO,Hiroshi SUDA

There have been lots of uncertain points regarding how an aircraft gear load transmits to bases and/or subgrade in an airport pave...

An Analysis of the Hydraulic Transport of Solids in Horizontal Pipelines

Port and Airport Research Institute      011-03-01

September, 1972


Tokuji YAGI,Tadasu OKUDE,Shoji MIYAZAKI,Akio KOREISHI

 A head loss equation in the hydraulic transport of solids in horizontal pipelines has been developed theoretically assuming a flo...

The application of SUMT to the Optimum Design of the Concrete Block Quay

Port and Airport Research Institute      011-03-07

September, 1972

System and Management Section
Kenziro KOHRIKI

In this paper the development of the optimum design program for the concrete block quay was carried out applying the technique of ...

A Study on Excavation Forces by a Plane Blade

Port and Airport Research Institute      011-02-09

June, 1972


Koji ISHIZUKA

 Forces acting on plane blade when soils are excavated by the plane blade keeping the depth of the blade constant are calculated b...

Effect of Behavior of Settling Suspension Particles on Reflection and Absorption Characteristics of Ultrasonic Waves

Port and Airport Research Institute      011-02-08

June, 1972


Sumitaka KIHARA

 For the development of echo-sounder which detect effciently the vertical density distribution of suspension layers, it is necessa...

Out-Door Dynamic Model Test of Trench Type Tunnel

Port and Airport Research Institute      011-02-07

June, 1972


Yoshinori AOKI,Hazime TSUCHIDA,Satoshi HAYASHI

 This paper discusses the result of the dynamic model test which has been done in the West Center Pier, Port of Kinuura, in 1970 f...