Download the full-sized PDF
Permanent link (DOI): https://doi.org/10.7939/R3FJ29D46
This file is in the following communities:
|Geotechnical and Geoenvironmental Engineering Program|
This file is in the following collections:
|Journal Articles (Geotechnical & Geoenvironmental Engineering)|
Deformation of small tunnels - IV. Behaviour during failure Open Access
- Author or creator
Kaiser, P. K.
- Additional contributors
- Type of item
- Journal Article (Published)
Tests on small circular openings have been conducted to investigate the deformation processes near tunnels at large depth or in weak rock. The test equipment has been described in Part 1; typical test results documenting the behaviour of small tunnels in a jointed rock mass with time-dependent strength and deformation properties have been presented in Part II; and the pre-failure behaviour of these tunnels has been investigated in Part III. In this fourth part, results from one specific test on coal are used to discuss the behaviour of openings in a jointed rock mass during the failure process. The test results show that it is necessary to differentiate between two modes of behaviour, yielding and rapture, if overstressing of the rock mass near the opening occurs. The observed rock mass displacements and wall convergences are compared with predictions made by one analytical and one numerical model. It is concluded that existing design models do not satisfactorily simulate the transition from yielding to rupture and that both behaviour modes must be evaluated separately for proper tunnel design and selection of optimal construction techniques. Practical implications for tunnel monitoring and interpretation of oil well breakouts are also discussed.
- Date created
- License information
- © 1985 Elsevier. This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.
- Citation for previous publication
Kaiser, P.K., Guenot, A., and Morgenstern, N.R. (1985). Deformation of small tunnels - IV. Behaviour during failure. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 22(3), 141–152. DOI: 10.1016/0148-9062(85)93228-0.
- Link to related item
- Date Uploaded
- Date Modified
- Audit Status
- Audits have not yet been run on this file.
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 2045894
Last modified: 2015:10:12 19:25:44-06:00
Filename: Deformation of small circular underground openings Part IV. Behavior During Failure.PDF
Original checksum: 4876df00525d6c67081a6c4ed130c913
Well formed: true
Page count: 66