Ankerung im Untertagebau – Entwicklungen in Theorie und Praxis

Kainrath‐Reumayer, Stefan; Neugebauer, Erich; Charette, François; Plouffe, M; Galler, Robert

doi:10.1002/geot.200800034

Cited by 4 publications

(4 citation statements)

References 2 publications

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“…The method has a limited scope of application due to the assumptions that have to be made for the analytical methods. The various analytical methods, which can be used for the convergence confinement method, vary from each other considerably, for which reason a fundamental understanding of the system behaviour and particularly rupture processes is required for the application of the sung der Festigkeits-und auch der Verformungseigenschaften des Gebirges im Kennlinienverfahren berücksichtigt werden [11].…”

Section: Discussionmentioning

confidence: 99%

“…The system stiffness therefore depends on the total length of the rock bolt and the fixing. Conventional end-anchored rock bolts are not used in deep tunnelling, but there are anchor systems, which can absorb large displacements [11].…”

Section: Support Resistance Of the Rock Boltsmentioning

confidence: 99%

“…In areas with large incremental deformations, such anchors are more highly loaded than in areas with small incremental deformations. Through their effect as a ground improvement measure, the influence on the strength and also deformational behaviour of the rock mass can be taken into account in the convergence confinement method [11].…”

Section: Ausbaukennliniementioning

confidence: 99%

“…Die Systemsteifigkeit hängt somit von der gesamten Ankerlänge und der Ankerbefestigung ab. Herkömmliche Freispielanker werden im tiefen Tunnelbau nicht eingesetzt; es existieren aber Ankersysteme, die große Dehnwege aufnehmen können [11].…”

Section: Ausbauwiderstand Der Ankerunclassified

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The convergence confinement method as an aid in the design of deep tunnels

Kainrath‐Reumayer

Gschwandtner

Galler

2009

Geomechanics and Tunnelling

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The convergence confinement method is used in its original form for the analytic or graphical description of the ground and system behaviour of underground excavations. The purpose of the method is to derive the support measures required from the combination of the ground characteristic curve, a model of the development of the radial deformations of the excavation surface in the axial direction of the tunnel, the support characteristic curve and the installation time and location of the support measures. The convergence confinement method is mostly used in the preliminary design of underground structures.Typical applications of the convergence confinement method are deep tunnels and tunnels with ground behaviour types where displacements play a major role. If sudden ruptures occur, in shallow tunnelling and in loose ground, this method is not to be recommended. An absolute precondition for the correct use is an understanding of the theory of the convergence confinement method and the course of failure mechanisms in the rock mass and their effects on the system behaviour.

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Section: Discussionmentioning

confidence: 99%

Section: Support Resistance Of the Rock Boltsmentioning

confidence: 99%

Section: Ausbaukennliniementioning

confidence: 99%

Section: Ausbauwiderstand Der Ankerunclassified

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The convergence confinement method as an aid in the design of deep tunnels

Kainrath‐Reumayer

Gschwandtner

Galler

2009

Geomechanics and Tunnelling

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3‐dimensional numerical calculations for tunnels with high overburden / Dreidimensionale numerische Berechnungen für tiefliegende Tunnelbauvorhaben

Volderauer¹,

Galler

Marcher³

2013

Geomechanics and Tunnelling

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The present article discusses the results of 3D numerical simulations of a deep section of the west bore of the Gotthard Base Tunnel in the geological formation of the Clavaniev Zone. For the calibration of the numerical model, the geological and geotechnical documentation from both the design and the construction phase as well as the daily and monthly reports from the site were made available by the AlpTransit Gotthard AG. Working from this documentation, three‐dimensional simulations were performed with various material models. The objective of the investigations was to realistically determine geotechnical data, both for the deformation of the sidewalls and in an axial direction ahead of the face, for future 3D calculations of deep tunnels.Im vorliegenden Beitrag werden die Ergebnisse dreidimensionaler numerischer Simulationen eines tiefliegenden Abschnitts der Weströhre des Gotthard Basistunnels in der geologischen Formation der Clavaniev Zone diskutiert. Für die Eichung des numerischen Modells wurden von der AlpTransit Gotthard AG die geologische und geotechnische Dokumentation sowohl aus der Planungs‐ als auch der Ausführungsphase sowie die Tages‐ und Monatsberichte der Baustelle zur Verfügung gestellt. Auf Basis dieser Dokumentation wurden dreidimensionale Simulationen unter Verwendung verschiedener Materialmodelle durchgeführt. Zielsetzung der Untersuchungen war, die geotechnischen Messergebnisse, sowohl die Verschiebungen der Laibung als auch jene in axialer Richtung vor der Ortsbrust für zukünftige dreidimensionale Berechnungen tiefliegender Tunnel realgetreu ermitteln zu können.

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