scholarly journals Terrestrial photogrammetry for measuring pile movements

1978 ◽  
Vol 15 (4) ◽  
pp. 596-599
Author(s):  
M. Bozozuk ◽  
M. C. Van Wijk ◽  
B. H. Fellenius
Keyword(s):  
Driven Piles ◽  
Marine Clay ◽  
Concrete Piles ◽  
Sources Of Error ◽  
Sensitive Marine Clay ◽  
Terrestrial Photogrammetry

Terrestrial photogrammetry was used to monitor, movements of previously driven piles during the installation of 116 concrete piles in sensitive marine clay. The technique and the equipment used are described and the sources of error discussed.

scholarly journals The bellow-hose settlement gauge

1979 ◽  
Vol 16 (1) ◽  
pp. 233-235 ◽  
Author(s):  
M. Bozozuk ◽  
B. H. Fellenius
Keyword(s):  
Marine Clay ◽  
Concrete Piles ◽  
Sources Of Error ◽  
Sensitive Marine Clay

Bellow-hose settlement gauges were used to measure vertical soil heave during the installation of concrete piles in sensitive marine clay. The equipment is described and the sources of error are discussed.

An Experience with Heave of Cast In Situ Expanded Base Piles

1973 ◽  
Vol 10 (2) ◽  
pp. 246-260 ◽  
Author(s):  
L. S. Brzezinski ◽  
L. Shector ◽  
H. L. Macphie ◽  
H. J. Vander Noot
Keyword(s):  
Special Interest ◽  
Glacial Till ◽  
Load Testing ◽  
Marine Clay ◽  
Factors Affecting ◽  
Concrete Piles ◽  
Sensitive Marine Clay ◽  
The City

On a project just west of the City of Montreal pile heave was experienced during the installation of groups of cast in situ cased expanded base concrete piles, driven through about 30 ft (9 m) of sensitive marine clay to end bearing in a glacial till formation. The paper describes the observed heave occurrence and discusses factors affecting pile and soil heave. Of special interest is the behavior of the piles during retapping since a number had final refusal elevations which were both high and low with respect to initially installed elevations. Possible explanations for this behavior and considerations pertinent to installation procedure, site inspection, load testing, and specifications for this type of pile are discussed within the paper.

scholarly journals Limitations of the Danish driving formula for short piles

2021 ◽  
Vol 44 (2) ◽  
pp. 1-6
Author(s):  
Silvio Heleno de Abreu Vieira ◽  
Francisco R. Lopes
Keyword(s):  
Load Capacity ◽  
Precast Concrete ◽  
Free Fall ◽  
Technical Note ◽  
Driven Piles ◽  
Concrete Piles ◽  
Load Tests ◽  
Semi Empirical ◽  
The City ◽  
Pile Length

Dynamic formulae are a widely used expedient for the control of driven piles to ensure load capacity. These formulae have considerable limitations when used in the prediction of the load capacity on their own, but are very useful in the control of a piling when combined with other tests. This technical note presents an evaluation of the Danish Formula for 54 precast concrete piles, comparing its results with High Strain Dynamic Tests (HSDTs), Static Load Tests (SLTs) and predictions by a semi-empirical static method (Aoki & Velloso, 1975). The data used in the comparison come from three works in the city of Rio de Janeiro, Brazil. All piles were driven with free-fall hammers and in one particular work the piles were relatively short. The predictions of the Danish Formula were evaluated in relation to the pile length/diameter ratio. It was concluded that for short piles - with lengths less than 30 times the diameter - this formula indicates bearing capacities higher than the actual ones. A correction for a safe use of the Danish Formula for short piles is suggested.

Thirty years of secondary consolidation in sensitive marine clay: Reply

1991 ◽  
Vol 28 (3) ◽  
pp. 468-469
Author(s):  
C. B. Crawford ◽  
M. Bozozuk
Keyword(s):  
Marine Clay ◽  
Sensitive Marine Clay

Performance of Precast Driven Piles in Marine Clay

1991 ◽  
Vol 117 (4) ◽  
pp. 637-657 ◽  
Author(s):  
Chun F. Leung ◽  
R. Radhakrishnan ◽  
Siew‐Ann Tan
Keyword(s):  
Driven Piles ◽  
Marine Clay
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