Model Tests of Lined Tunnels in a Jointed Rock Mass (Strengthening of Rock by Chemical Adhesive Grouting): Fid-Bau Portal

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Model Tests of Lined Tunnels in a Jointed Rock Mass (Strengthening of Rock by Chemical Adhesive Grouting)

A. J. Hendron / P. Engeling

Model laws governing the design of geomechanical model studies of underground openings in rock subjected to static loads are developed using dimensional analysis and the theory of models. The significant variables influencing the behavior of rock considered in this study are the free-field stresses, the properties of the discontinuities in the rock mass, the opening geometry, and the structural liner supporting the opening. The prototype chosen for study is a short section of a long circular tunnel which is underground at a depth of more than four tunnel diameters. The development of geomechanical modeling techniques for the construction and testing of jointed rock models is described. The strength properties of the intact model material and of the joint surfaces are also presented. The models were tested in plane strain (zero strain parallel to the tunnel axis) by the use of a controlled rigid longitudinal loading head. (Modified author abstract)

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Model Tests of Lined Tunnels in a Jointed Rock Mass (Strengthening of Rock by Chemical Adhesive Grouting)

A. J. Hendron / P. Engeling

Model laws governing the design of geomechanical model studies of underground openings in rock subjected to static loads are developed using dimensional analysis and the theory of models. The significant variables influencing the behavior of rock considered in this study are the free-field stresses, the properties of the discontinuities in the rock mass, the opening geometry, and the structural liner supporting the opening. The prototype chosen for study is a short section of a long circular tunnel which is underground at a depth of more than four tunnel diameters. The development of geomechanical modeling techniques for the construction and testing of jointed rock models is described. The strength properties of the intact model material and of the joint surfaces are also presented. The models were tested in plane strain (zero strain parallel to the tunnel axis) by the use of a controlled rigid longitudinal loading head. (Modified author abstract)

Model Tests of Lined Tunnels in a Jointed Rock Mass (Strengthening of Rock by Chemical Adhesive Grouting)

A. J. Hendron / P. Engeling

Model laws governing the design of geomechanical model studies of underground openings in rock subjected to static loads are developed using dimensional analysis and the theory of models. The significant variables influencing the behavior of rock considered in this study are the free-field stresses, the properties of the discontinuities in the rock mass, the opening geometry, and the structural liner supporting the opening. The prototype chosen for study is a short section of a long circular tunnel which is underground at a depth of more than four tunnel diameters. The development of geomechanical modeling techniques for the construction and testing of jointed rock models is described. The strength properties of the intact model material and of the joint surfaces are also presented. The models were tested in plane strain (zero strain parallel to the tunnel axis) by the use of a controlled rigid longitudinal loading head. (Modified author abstract)

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Title:

Model Tests of Lined Tunnels in a Jointed Rock Mass (Strengthening of Rock by Chemical Adhesive Grouting)

Contributors:

A. J. Hendron (author) / P. Engeling (author)

Publication date:

1973

Size:

76 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Civil Engineering , Geology & Geophysics , Rock(Geology) , Underground structures , Joints , Stresses , Strain(Mechanics) , Models(Simulations) , Acrylic resins , Reinforced concrete , Plasticity , Elasticity , Tunnels(Excavations) , Geomechanical models , Chemical adhesive grouting , Tunnel liners

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