This book covers not only practical aspects but also the underlying theoretical approaches. It also covers the fundamentals of rock mechanics. The book addresses not only students but also professionals who are interested to understand the underlying principles and methods and - possibly - to further develop them. Emphasis is given to the mechanical approach rather than to hardly tractable empirical statements. The text is concise and comprises a large list of citations.

Geomechanics is the mechanics of geomaterials, i.e. soils and rocks, and deals with fascinating problems such as settlements, stability of excavations, tunnels and offshore platforms, landslides, earthquakes and liquefaction. This edited book presents recent mathematical and computational tools and models to describe and simulate such problems in geomechanics and geotechnical engineering. It includes a collection of contributions emanating from the three Euroconferences GeoMath ('Mathematical Methods in Geomechanics') that were held between 2000 and 2002 in Innsbruck/Austria and Horto/Greece.

In view of its extreme complexity the mathematical description of the mechanical behaviour of granular materials is an extremely difficult task. Today many different models compete with each other. However, the complexity of the models hinders their comparison, and the potential users are confused and, often, disencouraged. This book is expected to serve as a milestone in the present situation, to evaluate the present methodes, to clear up the situation, to focus and encourage for further research activities.

Einfuhrung; Einrichtungen in Strassentunneln; Beluftung; Beleuchtung von Strassentunneln; Geotechnische Untersuchungen; Gebirgscharakterisierung; Vortrieb; Schild- u. Sprengvortrieb; Sicherung; Bohren, Brechen und Schneiden; Innenschale; Vergleich von TMB mit Sprengvortrieb; Grund- und Bergwasser; Schuttern; Neue OEsterr. Tunnelbauweise; Sicherheit beim Vortrieb; Druckluftverfahren; Unterwasser-Tunnel; Schachte; Elektrische Einrichtungen im Tunnelvortrieb; Beispiele; Grosse Tunnelbauprojekte der Zukunft; Spannungs- u. Deformationszustande, Spannungs- und Deformationsfeld um einen kreisrunden Tunnel; Einige Naherungsformeln; Anker; Standsicherheit der Ortsbrust; Schrankentheoreme; Setzungen der Oberflache; Erddruck auf Schachte; Stabilitatsprobleme im Tunnelbau; Frostausbreitung beim Gefrierverfahren; Messungen; Praxis der Ausbaudimensionierung; Quellen- bzw. Schwellen; Wasserandrang; Mechanik der Sprengung

The ?eld of geosciences is full of scienti?c fascination and questions that are crucial for humanity. Our ?uid environment (the atmosphere, oceans, rivers, etc. ) is responsible for climate, hurricanes, ?oods and other phen- ena characterised by rapid changes. These have to be contrasted with the permanence of our solid underground made of soil, rock, ice and snow. H- ever, this permanence is only apparent as shown for example by earthquakes and landslides, but also by a number of other processes of deformation. Such processes are nowadays of high importance whenever we look to the future (think for example of disposal of radioactive waste or carbon dioxide) or to the past (prospectionof oil,gasand ore). But also shortrangeextrapolations are important if we look e. g. at the prediction and mitigation of landslides or the foundation of oil and gas production plants o?shore or on glaciers. Geosciences are pronouncedly multidisciplinary as they comprise perhaps the most widespread collection of disciplines, such as geology, geophysics, physics, geochemistry, geography, geotechnical and geoenvironmental en- neering, Unfor petroleum engineering, soil mechanics and rock mechanics- tunately, often these disciplines operate rather independent of each other andthe increasing quest for transdisciplinary exchange is inhibited by the di?erentlanguages and views prevailing in the various disciplines. It appears thus that mechanics could o?er a substantial link across d- ciplines, at least with respect to geotechnical engineering and geology.

The ?eld of geosciences is full of scienti?c fascination and questions that are crucial for humanity. Our ?uid environment (the atmosphere, oceans, rivers, etc. ) is responsible for climate, hurricanes, ?oods and other phen- ena characterised by rapid changes. These have to be contrasted with the permanence of our solid underground made of soil, rock, ice and snow. H- ever, this permanence is only apparent as shown for example by earthquakes and landslides, but also by a number of other processes of deformation. Such processes are nowadays of high importance whenever we look to the future (think for example of disposal of radioactive waste or carbon dioxide) or to the past (prospectionof oil,gasand ore). But also shortrangeextrapolations are important if we look e. g. at the prediction and mitigation of landslides or the foundation of oil and gas production plants o?shore or on glaciers. Geosciences are pronouncedly multidisciplinary as they comprise perhaps the most widespread collection of disciplines, such as geology, geophysics, physics, geochemistry, geography, geotechnical and geoenvironmental en- neering, Unfor petroleum engineering, soil mechanics and rock mechanics- tunately, often these disciplines operate rather independent of each other andthe increasing quest for transdisciplinary exchange is inhibited by the di?erentlanguages and views prevailing in the various disciplines. It appears thus that mechanics could o?er a substantial link across d- ciplines, at least with respect to geotechnical engineering and geology.

In view of its extreme complexity the mathematical description of the mechanical behaviour of granular materials is an extremely difficult task. Today many different models compete with each other. However, the complexity of the models hinders their comparison, and the potential users are confused and, often, disencouraged. This book is expected to serve as a milestone in the present situation, to evaluate the present methodes, to clear up the situation, to focus and encourage for further research activities.

This book covers not only practical aspects but also the underlying theoretical approaches. It also covers the fundamentals of rock mechanics. The book addresses not only students but also professionals who are interested to understand the underlying principles and methods and possibly to further develop them. Emphasis is given to the mechanical approach rather than to hardly tractable empirical statements. The text is concise and comprises a large list of citations.

Dieses Werk bietet eine systematische und dabei verstandliche Einfuhrung in den modernen Tunnelbau. Berucksichtigung finden Entwurfselemente und Ausrustung sowohl von Strassen- als auch von Eisenbahntunneln. Ferner enthalt es die Grundzuge der Felsmechanik und geht dezidiert auf die statistischen und anderen mechanischen Probleme des Tunnelbaus ein. AElteren, mehr intuitiven Konzepten wird hiermit ein rein rationaler Zugang gegenubergestellt. Eine Vielzahl von neuen approximativen Formeln erlaubt eine schnelle Vordimensionierung und eine Abschatzung der relevanten Parameter. Die Benutzung dieser Formeln wird an Beispielen aus durchgefuhrten Tunnelbauprojekten erlautert.

Geomechanics is the mechanics of geomaterials, i.e. soils and rocks, and deals with fascinating problems such as settlements, stability of excavations, tunnels and offshore platforms, landslides, earthquakes and liquefaction. This edited book presents recent mathematical and computational tools and models to describe and simulate such problems in geomechanics and geotechnical engineering. It includes a collection of contributions emanating from the three Euroconferences GeoMath ("Mathematical Methods in Geomechanics") that were held between 2000 and 2002 in Innsbruck/Austria and Horto/Greece.

A Primer to Theoretical Soil Mechanics is about adapting continuum mechanics to granular materials. The field of continuum mechanics offers many fruitful concepts and methods, however there is declining interest in the field due to its complex and fragmented nature. This book's purpose is therefore to facilitate the understanding of the theoretical principles of soil mechanics, as well as introducing the new theory of barodesy. This title argues for barodesy as a simple alternative to the plasticity theory used currently and provides a systematic insight into this new constitutive model for granular materials. This book therefore introduces a complex field from a fresh and innovative perspective using simple concepts, succinct equations and explanatory sketches. Intended for advanced undergraduates, graduates and PhD students, this title is also apt for researchers seeking advanced training on fundamental topics.

Das Thema ist besonders interessant fur die Problemstellungen des Grundbaus. Die Tragfahigkeit von Pfahlen kann nicht direkt berechnet werden; um so wichtiger ist der einfache Zugang zu Erfahrungswerten. In diesem Buch werden komplizierte Berechnungsverfahren und Tabellenwerte - soweit moeglich - durch Diagramme ersetzt oder so aufbereitet, dass sie mit geringem Aufwand programmiert werden koennen und Naherungsloesungen bieten. Die physikalischen Grundlagen der dynamischen Prufmethode werden ebenso erlautert wie die begleitenden Bodenuntersuchungen und Kontrollen; die Dimensionierung von Stahlbetonpfahlen wird durch umfangreiche Diagramme erleichtert. Daruberhinaus wird die Moeglichkeit geboten, anhand von unverbindlichen Preisbeispielen Kosten fur Pfahlgrundungen abzuschatzen; fur den Einsatz des Buches bei der Abwicklung von Auslandsauftragen ist eine Zusammenstellung der Fachbegriffe Deutsch/Englisch/Deutsch hilfreich. Das Buch wendet sich daher uber den Kreis der Studenten hinaus an Bauingenieure, die diese Technik einsetzen bzw. einsetzen wollen.