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This handbook provides a complete and detailed overview of piling
systems and their application. The design and construction of piled
foundations is based on Eurocode 7 and DIN 1054 edition 2010 as
well as the European construction codes DIN EN 1536 (Bored piles),
DIN EN 12699 (Displacement piles) and DIN EN 14199 (Micropiles).
These recommendations also deal with
- categorisation of piling systems,
- actions on piles from structural loading, negative skin friction
and side pressure,
- pile resistances from static and dynamic pile test loading as
well as extensive tables with the pile load-bearing capacity of
nearly all piling systems based on values from practical
experience,
- pile groups,
- performance of static and dynamic test loading and integrity
tests,
- load-bearing behaviour and verifications for piles under
cyclical, dynamic and impact actions
- quality assurance for construction.
An appendix with numerous calculation examples completes the
work.
As part of the approval procedure for offshore wind energy
structures, the Federal Office for Shipping and Hydrography (BSH)
demands verifications according to the new Chapter 13
("Load-bearing behaviour and verifications for piles under
cyclical, dynamical and impact actions") of the EA Pfahle (the
recommendations of the Piling working group - 2nd edition), which
deals with external pile resistance for the foundations of offshore
wind energy structures and the types of verifications to be
provided under cyclical actions.
The publication of the EA-Pfahle recommendations by the Piling
working group of the German Society for Geotechnics (DGGT), which
works with the same members as the piling standards committee NA
00-05-07, is intended to provide assistance for engineers active in
the design, calculation and construction of piled foundations. The
recommendations can thus be considered as rules of the technology
and as a supplement to the available codes and standards.
The completely revised and extended Recommendations deal with all
questions relevant to the planning and dimensioning of
geosynthetics-reinforced earth structures. In addition to the
demands on materials and analysis principles, the applications of
geosynthetics in a range of foundation systems, ground improvement
measures, highways engineering projects, in slopes and retaining
structures, and in landfill engineering are discussed.
The Recommendations have been supplemented by the following
sections:
- reinforced earth structures over point or linear bearing
elements,
- foundation systems using geotextile-encased columns,
- bridging subsidence,
- dynamic actions of geosynthetic-reinforced systems.
The remaining sections have been fundamentally revised and updated
in line with current standards and codes of practice.
The recommendations summarise the state of the art. Their aim is
the proper exploitation of the ground for geothermal purposes
without adversely affecting the ground or the groundwater on the
one hand and the operation of the system and nearby buildings on
the other. The recommendations should be used during consulting,
design, installation and operation in order to achieve optimum and
sustainable use of the ground at a specific location. Authorities
responsible for supervising and approving projects can use the
recommendations as a guide when taking decisions and making
stipulations. The Geothermal Energy Study Group was set up in
Bochum in 2004 and became the joint DGGV/DGGT study group in 2007.
Some 20 specialists from universities, authorities and engineering
consultants are active in the group and meet two or three times a
year.
With the issue of these recommendations, which have the character
of a standard, the "Building Excavations" working group of the
German Geotechnics Association (DGGT) aims to provide assistance
with the design and structural calculation of excavation support
works.
The introduction of the Eurocodes for building control purposes
made necessary a revision of the previous edition of the
recommendations to comply with the requirements of DIN EN
1997-1:2009 together with the national annex DIN 1997-1/NA:2010-12
and the supplementary regulations of DIN 1054:2010-12. All
recommendations were thoroughly checked, revised where necessary
and adapted to new knowledge. Chapter 10 "Building excavations in
water" was substantially revised. Due to the progress of
development of measurement instruments and the more stringent
requirements, Chapter 14 "Instrumentation for the monitoring and
supervision of building excavation support works" was formulated
completely anew.
The recommendations of the working group "Building Excavations"
should be of assistance,
- to simplify the design and structural calculation of excavation
support works,
- to harmonise loading assumptions and calculation procedures,
- to ensure the structural stability of excavation support works
and their individual elements and
- to improve the cost-effectiveness of excavation support works.
The Tunnelling Pocket Book has for many years provided practical
advice for clients, consultants and contractors. It deals with
current developments and problems, presents innovative solutions
and thus documents the latest state of the technology.
Die Empfehlungen dokumentieren den Stand der Technik in der
Bemessung, Auswahl, Anwendung und Pr?fung von Geokunststoffen im
Tunnelbau und sind vom Arbeitskreis AK 5.1 "Kunststoffe in der
Geotechnik und im Wasserbau" der Deutschen Gesellschaft f?r
Geotechnik e.V. (DGGT) erstellt worden. Das Buch behandelt
Dichtungssysteme mit Kunststoffdichtungsbahnen f?r Tunnel in
geschlossener und offener Bauweise sowie f?r sonstige unterirdische
Bauwerke und dient als Leitfaden f?r Bauherren, Planer und
Ausf?hrende. Entwicklungen in relevanten Regelwerken und Normen,
Projekterfahrungen sowie Weiterentwicklungen und anwendungsbezogene
Forschungserkenntnisse seit Erscheinen der ersten Auflage im Jahr
2005 wurden in diese 2. Auflage der "Empfehlungen zu
Dichtungssystemen im Tunnelbau EAG-EDT" eingearbeitet.
Fallbeispiele erg?nzen die Ausf?hrungen.
The Tunnelling Pocket Book has for many years provided practical
advice for clients, consultants and contractors. It deals with
current developments and problems, presents innovative solutions
and thus documents the latest state of the technology.
The aim of the Recommendations is the technically correct
exploitation of the subsoil for geothermal purposes. It should be
of assistance in avoiding impairment of soil and groundwater during
the operation of the plant and buildings.
The book collects almost all the recommendations issued so far by
the DGGT working group "Numerical analysis in geotechnology" in one
work. For the collected publication, the recommendations have been
matched, updated and in many aspects supplemented and completed.
This handbook provides a complete overview of pile systems and
their application and production. It shows their analysis based on
the new safety concept providing numerous examples for single
piles, pile grids and groups. These recommendations are considered
rules of engineering.
Die Empfehlungen dokumentieren den Stand der Technik in der
Bemessung, Auswahl, Anwendung und Pr?fung von Geokunststoffen im
Tunnelbau und sind vom Arbeitskreis AK 5.1 "Kunststoffe in der
Geotechnik und im Wasserbau" der Deutschen Gesellschaft f?r
Geotechnik e.V. (DGGT) erstellt worden. Das Buch behandelt
Dichtungssysteme mit Kunststoffdichtungsbahnen f?r Tunnel in
geschlossener und offener Bauweise sowie f?r sonstige unterirdische
Bauwerke und dient als Leitfaden f?r Bauherren, Planer und
Ausf?hrende. Entwicklungen in relevanten Regelwerken und Normen,
Projekterfahrungen sowie Weiterentwicklungen und anwendungsbezogene
Forschungserkenntnisse seit Erscheinen der ersten Auflage im Jahr
2005 wurden in diese 2. Auflage der "Empfehlungen zu
Dichtungssystemen im Tunnelbau EAG-EDT" eingearbeitet.
Fallbeispiele erg?nzen die Ausf?hrungen. Inklusive PDF
The Recommendations deal with the basics of performing
verifications and the application of geotextiles for the
reinforcement of various foundation systems and ground improvement
measures, in road construction, for slopes and retaining structures
and in landfill operation.
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