physical modeling for study of deep foundations can be performed in simple chambers (1g), calibration chambers (cc), and centrifuge apparatus (ng). these common apparatus face certain limitations and difficulties. recently, frustum confining vessels (fcv) have been evolved for physical modeling of deep foundations and penetrometers. shaped as the frustum of a cone, this device applies steady pr...

Abstract An energy pile undertakes the functions of supporting superstructure and controlling indoor temperature building, thermal-mechanical coupling response an makes its load transfer mechanism different from that conventional engineering piles. Moreover, responses piles in summer winter conditions are also need to be explored separately. Based on a ground source heat pump foundation worksho...

This paper introduces an experimental research on the behavior of piled raft foundation (PRF) in sand two states (loose and medium sand). A small model has been tested a soil container vertical load was applied to through pneumatic jack. The settlement measured using displacement transducer; three sensors were attached pile heads measure axial borne group by each Arduino data logger. laboratory...

An analytical model has been developed for the airborne sound pressure waveform radiated when an offshore steel pipe pile is struck by a short hammer. The model is based on the coupled equations of motion for axial and radial vibration of a thin shell, and yields frequency-dependent phase velocity and attenuation of these vibrations. A harmonic solution is obtained for the radiated sound pressu...

The elastic modulus of a concrete pile is an important parameter for the interpretation of load test results. This paper summarizes and assesses the methods available for its determination. Ten methods have been identified of which four are based on laboratory tests and the remainder on in situ pile instrumentation. Six of the methods have been used to interpret the modulus of a concrete pile s...

The design of axially loaded piles has been an area focus for the offshore industry in recent years. A number studies report substantial increases shaft capacity driven sand, known as pile ageing. slow to implement ageing into practice because uncertainty over mechanisms controlling and variability on impact This paper presents results tests using instrumented with two separate installations co...

The study about the jacket platforms in the past has revealed that the most of the collapse failures occur due to the lack of strength of the pile foundation. However, when the jacket platforms which have been collapsed due to extreme condition were looked into, it was found that most of them had their foundations intact. These contrasting facts can be explained with the help of the phenomenon ...

This paper considers the axial resistances of open-ended, highly instrumented, 763 mm diameter steel pipe piles driven in sands for EURIPIDES (EURopean Initiative on PIles DEnse Sands) project at a well-characterized research site Eemshaven, northern Netherlands. It offers new analyses previously unreported dynamic tests and their relationship with four heavily instrumented static compression t...