Publications

The book Precast concrete piles was published in September 2005 by Gdansk University of Technology. The authors’ decision was to make the electronic version of the book available for free.



In the first part of the book discusses previous applications of precast piles, mainly in the 70' and 80'. Describes the types of piles, equipment used for driving and selected examples of buildings founded
on piles.

In the second part of the book discusses the modern application of piles. Described, among others things, materials for production of piles, the characteristics of geometric, cross-sections and length of piles, modern way of combining piles, methods of prefabrication of piles, methods of control of material and geometric parameters, contemporary equipment for pile driving and phenomena and impacts during pile driving.

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Authors: Kazimierz Gwizdała, Jakub Roch Kowalski

Prefabrykowane Pale Wbijane - Kazimierz Gwizdała, Jakub Roch Kowalski

Chapter 1 - Previous uses of precast concrete piles

Chapter 1 presents used in the 70’ i 80’ types of piles, the technology of their production and the way driving.

Discusses the process for the production of piles in the prefabrication plant and at the construction site (in the range of concrete piles, prestressed concrete piles and concrete piles with holes).

There are presented materials used for production of piles and the strength parameters of precasts. Characterized types of hammers used for driving piles (i.e. free-falling, steam-air, gas, electric, hydraulic and sonic).

Presented rigs used for driving piles Polish and foreign production. In addition, the observed phenomena are discussed during piling.



page 52 page 60

Chapter 2 - Contemporary uses of precast concrete piles

Chapter 2 presents the currently used types of precast piles, technology of their production and the way of driving.

Discusses the materials currently used for production of piles and characteristics of strength parameters.

There are presented two ways of pile production (classical way including manual installation of the reinforcement and mechanized way of using the machine to automatic production of reinforcement).

Discussed in detail the technology of pile production in precast plant and performed pile quality tests. Presented the currently used cross sections and the length of precast piles.

In addition, presented the way of connecting piles at the construction site which enables execution piles of considerable length.



page 101 page 111

Chapter 3 - Examples of piles performing in the the various branches of engineering constructions

Chapter 3 presents the currently applications of precast piles in various types of general construction.

On the basis of selected examples shows the use of piles in residential and industrial constructions, road and railway embankments, tower constructions, railway line towers and noise barriers.

Selected projects founded on precast piles discussed in terms of geotechnical conditions and applied design solutions. Presented used cross sections and length of piles and their bearing capacity confirmed by static load tests in the field.



page 119 page 127

Chapter 4 - Bridge constructions founded on precast piles

Chapter 4 presents the currently applications of precast piles in bridge construction.

Selected projects founded on precast piles discussed in terms of geotechnical conditions, applied design solutions, cross sections and lengths of piles.

Describes placement of piles in foundations of the bridge abutments including the spacing and slope of piles. Presents pile bearing capacity of individual supports of bridges, confirmed by static load tests in the field. In addition, the characteristics of precast piles discussed in relation to the bridges.



page 146 page 149

Chapter 5 - Hydrotechnical constructions founded on precast piles

Chapter 5 presents the previous and contemporary applications of precast piles in hydrotechnical construction.

Discusses inland and seagoing constructions founded on precast piles. Selected projects of wharves, piers and jetties were presented in terms of geotechnical conditions and used cross sections and lengths of piles.

Presents a detailed characterization of applied design solutions. Discussed permissible loads, depth of water and dimensions of structure. In addition, presents the characteristics of precast piles in relation to hydrotechnical constructions.



page 168 page 195

Chapter 6 - Modern equipment for driving precast piles

Chapter 6 presents the currently used equipment for driving piles. Discussed crawler and rail rigs used for driving piles.

Shows the weight of the equipment and its dimensions in the working phase and during transport. Lists the maximum length of piles and their possible inclination. Describes additional equipment used in difficult ground conditions (e.g. drill to loosening the ground).

Discusses currently used hydraulic hammers for driving piles, presents their operating characteristics and the way of noise protection. In addition, compared to hydraulic hammers of equipment used in the 70 'and 80'.



page 211 page 215

Chapter 7 - Phenomena occurring during pile driving

Chapter 7 discusses some issues related to the precast piles driving. Describes the characteristics of vibration transmitted to the subsoil during piles driving, discusses safe distance from a neighboring building and ways to measure vibration.

Presents level of noise caused by hydraulic hammer and other sources of noise. Compares the results of bearing capacity of driven piles vibrated piles. Shows the scope of dynamic formulas using to analyse bearing capacity of driven piles and the principle of correlation dynamic formula pattern of the static tests. In addition, discusses the phenomena occurring in the ground caused by piles driving.



page 219 page 227