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Abstract
The in-situ stress situation is much more complex than assumed during usual underground
excavation design. Even when utilizing more sophisticated, three-dimensional numerical models it is general practice to assume parallel alignment of one of the stress tensor’s primary stress components and vertical orientation of one of the other two, hence leading to the usual description of the stress conditions with the K0 value. These assumptions are somewhat conflicting with current knowledge and assumptions about the influence of the terrain and tectonic regime on the primary stress state. This paper represents the summary of a pa-
rametric study, based on results of numerical calculations conducted under assumption of a primary stress state featuring both arbitrary magnitudes of principal stresses and arbitrary spatial orientations. The patterns found in the relationship between displacement behaviour of the tunnel cross section and the primary stress orientations are presented in this paper
excavation design. Even when utilizing more sophisticated, three-dimensional numerical models it is general practice to assume parallel alignment of one of the stress tensor’s primary stress components and vertical orientation of one of the other two, hence leading to the usual description of the stress conditions with the K0 value. These assumptions are somewhat conflicting with current knowledge and assumptions about the influence of the terrain and tectonic regime on the primary stress state. This paper represents the summary of a pa-
rametric study, based on results of numerical calculations conducted under assumption of a primary stress state featuring both arbitrary magnitudes of principal stresses and arbitrary spatial orientations. The patterns found in the relationship between displacement behaviour of the tunnel cross section and the primary stress orientations are presented in this paper
| Original language | English |
|---|---|
| Title of host publication | Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst |
| Subtitle of host publication | EUROCK 2009 |
| Place of Publication | Boca Raton, Fl. |
| Publisher | CRC Press |
| Pages | 471-476 |
| ISBN (Print) | 9780415804813 |
| Publication status | Published - 2009 |
| Event | Regional Symposium of the International Society for Rock Mechanics: Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst: EUROCK 2009 - Dubrovnik, Cavtat, Croatia Duration: 29 Oct 2009 → 31 Oct 2009 |
Conference
| Conference | Regional Symposium of the International Society for Rock Mechanics: Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst |
|---|---|
| Abbreviated title | EUROCK 2009 |
| Country/Territory | Croatia |
| City | Dubrovnik, Cavtat |
| Period | 29/10/09 → 31/10/09 |
Fingerprint
Dive into the research topics of 'Influence of the primary stress state on the displacement characteristic'. Together they form a unique fingerprint.Projects
- 1 Finished
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Prediction of Displacements in Tunnelling
Radoncic, N. (Co-Investigator (CoI)), Pilgerstorfer, T. (Co-Investigator (CoI)), Seidl, C. (Co-Investigator (CoI)) & Schubert, W. (Principal Investigator (PI))
1/12/96 → 31/12/23
Project: Research project