scholarly journals Vibrations from driven concrete piles in layered soft soils close to a railway embankment

2021 ◽  
Vol 710 (1) ◽  
pp. 012057
Author(s):  
M R Lodahl ◽  
A E Riis ◽  
K T Brødbæk ◽  
C T Leth
Keyword(s):  
Soft Soils ◽  
Concrete Piles

scholarly journals Finite Element Modelling of Prestressed Concrete Piles in Soft Soils, Case Study: Northern Jakarta, Indonesia

2021 ◽  
pp. 21-30
Author(s):  
Aswin Lim ◽  
Varian Harwin Batistuta ◽  
Yiska Vivian Chritiansen Wijaya
Keyword(s):  
Finite Element ◽  
Prestressed Concrete ◽  
Coastal Area ◽  
Interface Strength ◽  
Load Test ◽  
Loading Test ◽  
Soft Soils ◽  
Concrete Piles ◽  
High Rise

Jakarta is faced with limited land resources due to its position as the capital city of Indonesia. Therefore, numerous high-rise buildings are being constructed to solve this problem and provide accommodations for a large number of Jakarta residents. Studies have shown that prestressed concrete piles (spun piles) are commonly used as the foundations of high-rise buildings in metropolitan cities across Indonesia, especially in the Northern Jakarta Coastal area, which is predominant with deep soft soils deposit. To further assess and verify the ultimate capacity of the pile, a static loading test was conducted. However, not all results from the field test produced ideal, accurate, precise, and reliable load-settlement curve (until failure) results. Therefore, this study aims to determine the soil properties for the analysis of prestressed concrete spun piles with a diameter of 600 mm in the Northern Jakarta coastal area based on the standard penetration test values (SPT-N). It is a case study of a well-documented static pile load test using the kentledge system. Back analyses were performed by the finite element method to obtain the extrapolated load-settlement curve. Furthermore, the effect of interface strength between pile and soil on the load-settlement curve was also investigated. The results showed that a reduction of interface strength leads to a smaller load–settlement curve. In addition, several geotechnical engineering parameters of soil, such as the undrained shear strength and effective young's modulus, were established using data from an in-situ soil site investigation and empirical correlations with SPT-N.

Performance of Floating Piles for Supporting Embankments in Soft Soils

2011 ◽  
Vol 105-107 ◽  
pp. 1433-1437
Author(s):  
Wei Ping Cao ◽  
Min Zhao
Keyword(s):  
Reinforced Concrete ◽  
Skin Friction ◽  
Axial Force ◽  
Soft Soils ◽  
Negative Skin Friction ◽  
Concrete Piles ◽  
Reinforced Concrete Piles ◽  
Soil Arch ◽  
Stress Concentration Ratio ◽  
Embankment Load

Reinforced concrete piles are often used to support highway embankments in soft soils. The performance of floating piles differs significantly from that of end-bearing piles. A numerical analysis was conducted to investigate the soil stress concentration ratio, pile and soil settlements, pile axial force, negative skin friction (NSF) and the location of the neutral plane (NP) during embankment filling and consolidation of soft soils when the soft soils is treated by using reinforced concrete floating piles. The results indicate that the pile axial force as well as negative skin friction is closely time dependent and increase much more quickly during the embankment filling than during the consolidation. The location of the NP exhibits a complicated variation as the pile head loads and the surcharge applied on the soft soils are varying with time. Most of the embankment load is born by pile for the existence of soil arch within the embankment.

APPLICATION OF PRESSED PIPE-CONCRETE PILES, AT RECONSTRUCTION OF THE ENGINEERING AND LABORATORY CASE PAT "KHMELNYTSKOBLENERGO"

2020 ◽  
Vol 0 (6) ◽  
pp. 64-71
Author(s):  
Bohdan Demchyna ◽  
Yurii Kunanets ◽  
Mykhailo Surmai ◽  
Yevhen Hlavatskyi
Keyword(s):  
Concrete Piles

Driving Stresses in Concrete Piles

PCI Journal ◽  
1976 ◽  
Vol 21 (1) ◽  
pp. 70-88
Author(s):  
G. G. Goble ◽  
K. Fricke ◽  
G. E. Likins
Keyword(s):  
Concrete Piles

Rational seismic design of precast, prestressed concrete piles

PCI Journal ◽  
2008 ◽  
Vol 53 (5) ◽  
pp. 40-53 ◽  
Author(s):  
Andrew Budek-Schmeisser ◽  
Gianmario Benzoni
Keyword(s):  
Seismic Design ◽  
Prestressed Concrete ◽  
Concrete Piles ◽  
Precast Prestressed Concrete

PRESTRESSED CONCRETE PILES

PCI Journal ◽  
1962 ◽  
Vol 7 (5) ◽  
pp. 46-55
Author(s):  
N. H. E. Weller
Keyword(s):  
Prestressed Concrete ◽  
Concrete Piles

Mechanical Splicer for Precast, Prestressed Concrete Piles

PCI Journal ◽  
2004 ◽  
Vol 49 (2) ◽  
pp. 78-85
Author(s):  
Uri Korin ◽  
Gilad Kalman
Keyword(s):  
Prestressed Concrete ◽  
Concrete Piles ◽  
Precast Prestressed Concrete

Granular Pile Anchors For Soft Soils

2014 ◽  
Vol 4 (3) ◽  
pp. 15-24 ◽  
Author(s):  
O. Eswara Reddy ◽  
◽  
Madhav. M.R ◽  
Saibaba Reddy.E ◽  
Vidyaranya Bandi ◽  
...  
Keyword(s):  
Soft Soils ◽  
Granular Pile
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