Tunnel Probabilistic Structural Analysis Using the FORM
In this paper tunnel probabilistic structural analysis (TuPSA) was performed using the first order reliability method (FORM). In TuPSA, a tunnel performance function is defined according to the boundary between the structural stability and instability. Then the performance function is transformed fr...
| Main Authors: | , , |
|---|---|
| Format: | Journal Article |
| Published: |
Hindawi Publishing Corporation
2015
|
| Online Access: | http://hdl.handle.net/20.500.11937/6457 |
| _version_ | 1848745081321816064 |
|---|---|
| author | Sharifzadeh, Mostafa Mirzaeian, Y. Shahriar, K. |
| author_facet | Sharifzadeh, Mostafa Mirzaeian, Y. Shahriar, K. |
| author_sort | Sharifzadeh, Mostafa |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this paper tunnel probabilistic structural analysis (TuPSA) was performed using the first order reliability method (FORM). In TuPSA, a tunnel performance function is defined according to the boundary between the structural stability and instability. Then the performance function is transformed from original space into the standard normal variable space to obtain the design point, reliability index, and also the probability of tunnel failure. In this method, it is possible to consider the design factors as the dependent or independent random parameters with arbitrary probability distributions. A software code is developed to perform the tunnel probabilistic structural analysis (TuPSA) using the FORM. For validation and verification of TuPSA, a typical tunnel example with random joints orientations as well as mechanical properties has been studied. The results of TuPSA were compared with those obtained from Monte-Carlo simulation. The results show, in spite of deterministic analysis which indicates that the rock blocks are stable, that TuPSA resulted in key-blocks failure with certain probabilities. Comparison between probabilistic and deterministic analyses results indicates that probabilistic results, including the design point and probability of failure, are more rational than deterministic factor of safety. |
| first_indexed | 2025-11-14T06:11:41Z |
| format | Journal Article |
| id | curtin-20.500.11937-6457 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:11:41Z |
| publishDate | 2015 |
| publisher | Hindawi Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-64572017-09-13T14:42:52Z Tunnel Probabilistic Structural Analysis Using the FORM Sharifzadeh, Mostafa Mirzaeian, Y. Shahriar, K. In this paper tunnel probabilistic structural analysis (TuPSA) was performed using the first order reliability method (FORM). In TuPSA, a tunnel performance function is defined according to the boundary between the structural stability and instability. Then the performance function is transformed from original space into the standard normal variable space to obtain the design point, reliability index, and also the probability of tunnel failure. In this method, it is possible to consider the design factors as the dependent or independent random parameters with arbitrary probability distributions. A software code is developed to perform the tunnel probabilistic structural analysis (TuPSA) using the FORM. For validation and verification of TuPSA, a typical tunnel example with random joints orientations as well as mechanical properties has been studied. The results of TuPSA were compared with those obtained from Monte-Carlo simulation. The results show, in spite of deterministic analysis which indicates that the rock blocks are stable, that TuPSA resulted in key-blocks failure with certain probabilities. Comparison between probabilistic and deterministic analyses results indicates that probabilistic results, including the design point and probability of failure, are more rational than deterministic factor of safety. 2015 Journal Article http://hdl.handle.net/20.500.11937/6457 10.1155/2015/394761 Hindawi Publishing Corporation fulltext |
| spellingShingle | Sharifzadeh, Mostafa Mirzaeian, Y. Shahriar, K. Tunnel Probabilistic Structural Analysis Using the FORM |
| title | Tunnel Probabilistic Structural Analysis Using the FORM |
| title_full | Tunnel Probabilistic Structural Analysis Using the FORM |
| title_fullStr | Tunnel Probabilistic Structural Analysis Using the FORM |
| title_full_unstemmed | Tunnel Probabilistic Structural Analysis Using the FORM |
| title_short | Tunnel Probabilistic Structural Analysis Using the FORM |
| title_sort | tunnel probabilistic structural analysis using the form |
| url | http://hdl.handle.net/20.500.11937/6457 |