00672557

Component

http://onlinepubs.trb.org...trr/1994/1447/1447-007.pdf

https://scholar.google.co...Imbo&publication_year=1994

Developed in Belgium about 35 years ago, the Atlas screw pile has been used widely during the last decade in Europe and elsewhere. The Atlas screw pile can be defined as a vibration-free, cast-in-place concrete pile with double lateral ground displacement (during penetration as well as during extraction of the casing). The pile's high level of acceptance is related to the reliability of its equipment, the low level of noise pollution and lack of vibration during its construction, and availability of a computerized data-acquisition system to monitor its execution parameters, as well as its excellent bearing performance. Hydraulic rigs allow for production rates in the range of 100 to 150 m per day with a 2-person crew. Standard screw pile diameters range from 45 to 70 cm. Allowable bearing capacity typically is between 1,000 and 2,000 kN in compression and up to 1,000 kN in tension. The pile's method of construction, characteristics, range of application, design, performance, and its quality control are described. Piles can be constructed in nearly all soil types in which traditional rammed cast-in-place piles are used. The lateral soil displacement effect, with the virtual absence of any significant spoil, as well as the particular helical screw shape of the concreted pile contribute to its high bearing resistance and stiff settlement behavior.

This paper appears in Transportation Research Record No. 1447, Design and Construction of Auger Cast Piles, and Other Foundation Issues. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01401277

English

p. 49-62

1994

Transportation Research Record

0309060532

Figures (12) ; Photos (1) ; References (11) ; Tables (6)

Applications; Cast in place structures; Construction management; Data collection; Design; Information processing; Monitoring; Performance; Productivity; Quality control; Support piles

Characteristics

Bridges and other structures; Construction; Design; Highways; Research; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls

TRIS, TRB

Jan 13 1995 12:00AM

• ANALYTICAL MODELING OF SPREAD FOOTING FOUNDATIONS FOR SEISMIC ANALYSIS OF BRIDGES
• BITUMEN COATING FOR DOWNDRAG MITIGATION IN COHESIONLESS SOILS
• BUCKLING OF FRICTION PILES SUPPORTING BRIDGE FOUNDATIONS
• DESIGN AND CONSTRUCTION OF AUGER-CAST PILES IN FLORIDA
• DESIGN AND CONSTRUCTION OF STARSOL PILES
• DETERMINING LENGTHS OF INSTALLED TIMBER PILES BY DISPERSIVE WAVE PROPAGATION
• FORMALIZED PROCEDURE FOR QUALITY ASSESSMENT OF CAST-IN-PLACE SHAFTS USING SONIC PULSE ECHO METHODS
• LRFD CODE FOR ONTARIO BRIDGE SUBSTRUCTURES
• MANAGING THE INSTALLATION OF AUGERED CAST-IN-PLACE PILES
• NEW TECHNIQUES FOR RELIABLE PILE INSTALLATION AND PILE BEHAVIOR DESIGN AND ANALYSIS
• REDUCED IMPACT ON ADJACENT STRUCTURES USING AUGERED CAST-IN-PLACE PILES
• REVIEW OF AUGERED PILE PRACTICE OUTSIDE THE UNITED STATES
• USE OF DEEP BLAST DENSIFICATION FOR BRIDGE FOUNDATION IMPROVEMENT ON SR-504