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 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.

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.