Results 221 to 230 of about 4,422,693 (293)

Influence of residual stress and soil dilatancy on the load capacity of jacked pile

International Journal of Geotechnical Engineering, 2023
Pile jacking is one of the commonly adopted techniques for installation of displacement piles. The present study investigates the evolution of residual stresses during the pile jacking process and its subsequent impact on the pile load capacity with a ...
Siddharth Pathak, Mousumi Mukherjee
semanticscholar   +1 more source

Jacked Pile Installation in Sand

The Material Point Method for Geotechnical Engineering, 2019
J. Fern, A. Rohe, K. Soga, E. Alonso
openaire   +2 more sources

Field measurements of the stiffness of jacked piles and pile groups

Géotechnique, 2006
INTRODUCTION This Technical Note presents a back-analysis of the axial response of some field-scale tubular displacement piles installed by jacking. This study was motivated by the recent development of large pile-jacking rigs. These rigs are sufficiently strong to offer an alternative to bored piling in urban areas where conventional dynamic methods ...
Yetginer, A.G., White, D.J., Bolton, M.D.   +2 more
openaire   +2 more sources

Shear Zone around Jacked Piles in Clay

Journal of Performance of Constructed Facilities, 2015
AbstractAs the most important feature of jacked open-ended concrete pipe piles, shear zone has fluence of crucial importance during installing and after penetration. This study conducted a field test in silt deposit to observe the physical phenomenon of shear zone after installation and investigated soil parameter differences from undisturbed soil ...
Hai-lei Kou, Ming-yi Zhang, Feng Yu
openaire   +1 more source

Investigation of the Behaviour of Jacked and Rotary-Jacked Piles in Sandy Soils

2021
ABSTRACT The most established methods for pile installation in construction practice are impact-driving or boring. Pile driving induces vibrations and settlements in a zone around the pile. A noise pollution is furthermore generated, which is unfavourable especially in urban areas.
J.E. Saathoff, D. Frick, M. Achmus
openaire   +1 more source

Assessment of ultimate bearing capacity of the pile for jacking & rotary piling method

Physics and Chemistry of the Earth, Parts A/B/C, 2023
Techniques of pile installation such as jacking, dropping weight, vibration, and explosion were applied but these methods were discovered to have weaknesses, such as high friction resistance and high settlements. To overcome these problems, this study introduces new method of pile installation which is Jacking and Rotary method (J&R).
Hassan, Nor Syamira, Ibrahim, Aniza, Alias, Rohaya, Abang Hasbollah, Dayang Zulaika, Ramli, Ahmad Bukhari   +4 more
openaire   +2 more sources

Base Resistance of Jacked Pipe Piles in Sand

Journal of Geotechnical and Geoenvironmental Engineering, 2001
The paper presents the results from an experimental program carried out at Trinity College Dublin, in which instrumented model piles were jacked into loose dry sand in a large testing chamber. A number of pile installations were carried out to study the effects of in situ stress, diameter, and wall thickness on the behavior of open-ended piles in sand.
B. M. Lehane, K. G. Gavin
openaire   +1 more source

Jacked model pile shafts in offshore calcareous soils

Marine Geotechnology, 1988
Abstract This paper describes the results of laboratory tests carried out on model pile shafts in a variety of reconstituted calcareous sands and on silica sand. The factors influencing both the skin friction under static loading and the degradation of skin friction under cyclic loading have been investigated.
C. Y. Lee, H. G. Poulous
openaire   +1 more source

Installation of jacked piles in sandy soils

2005
When renovating historic buildings it is often necessary to reinforce the foundations. An effective and often used in Lithuania method is the underpinning with jacked piles. The piles are pressed into the soil without any noise or vibration by using static force.
Medzvieckas Jurgis, Sližytė Danutė   +1 more
openaire   +1 more source

Tests on Model Jacked Piles in Calcareous Sand

Geotechnical Testing Journal, 1996
Abstract This paper presents the results of a series of displacement-controlled cyclic axial loading tests of model jacked piles in dry calcareous sand. The tests were conducted using a large test facility comprising a test chamber 1.0 m in internal diameter and 1.55 m in height.
JT Chin, HG Poulos
openaire   +1 more source