Effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock mass
The rock masses in a construction site of underground cavern are generally not continuous, due to the presence of discontinuities, such as bedding, joints, faults, and fractures. The performance of an underground cavern is principally ruled by the mechanical behaviors of the discontinuities in the v...
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| Format: | Article |
| Language: | English |
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University of Tehran
2015-12-01
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| Series: | International Journal of Mining and Geo-Engineering |
| Subjects: | |
| Online Access: | http://ijmge.ut.ac.ir/article_56115_dbb649093aeb9f46c5eaf81c9cd3e867.pdf |
| _version_ | 1811310655227035648 |
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| author | Kayvan Ghorbani Mohsen Zahedi Ahmad Asaadi |
| author_facet | Kayvan Ghorbani Mohsen Zahedi Ahmad Asaadi |
| author_sort | Kayvan Ghorbani |
| collection | DOAJ |
| description | The rock masses in a construction site of underground cavern are generally not continuous, due to the presence of discontinuities, such as bedding, joints, faults, and fractures. The performance of an underground cavern is principally ruled by the mechanical behaviors of the discontinuities in the vicinity of the cavern. During underground excavation, many surrounding rock failures have close relationship with joints. The stability study on tunnel in jointed rock mass is of importance to rock engineering, especially tunneling and underground space development. In this study, using the probability density distribution functions of negative exponential, log-normal and normal, we investigated the effect of joint trace length on the stability parameters such as stress and displacement of tunnel constructed in rock mass using UDEC (Universal Distinct Element Code). It was obtained that normal distribution function of joint trace length is more critical on the stability of tunnel, and exponential distribution function has less effect on the tunnel stability compared to the two other distribution functions. |
| first_indexed | 2024-04-13T10:04:00Z |
| format | Article |
| id | doaj.art-32658200572e4e80901511c9179c0904 |
| institution | Directory Open Access Journal |
| issn | 2345-6930 2345-6949 |
| language | English |
| last_indexed | 2024-04-13T10:04:00Z |
| publishDate | 2015-12-01 |
| publisher | University of Tehran |
| record_format | Article |
| series | International Journal of Mining and Geo-Engineering |
| spelling | doaj.art-32658200572e4e80901511c9179c09042022-12-22T02:51:10ZengUniversity of TehranInternational Journal of Mining and Geo-Engineering2345-69302345-69492015-12-0149228929656115Effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock massKayvan Ghorbani0Mohsen Zahedi1Ahmad Asaadi2Department of Civil Engineering, Faculty of Engineering, Razi University, Kermanshah, IranDepartment of Civil Engineering, Faculty of Engineering, Razi University, Kermanshah, IranDepartment of Civil Engineering, Faculty of Engineering, Razi University, Kermanshah, IranThe rock masses in a construction site of underground cavern are generally not continuous, due to the presence of discontinuities, such as bedding, joints, faults, and fractures. The performance of an underground cavern is principally ruled by the mechanical behaviors of the discontinuities in the vicinity of the cavern. During underground excavation, many surrounding rock failures have close relationship with joints. The stability study on tunnel in jointed rock mass is of importance to rock engineering, especially tunneling and underground space development. In this study, using the probability density distribution functions of negative exponential, log-normal and normal, we investigated the effect of joint trace length on the stability parameters such as stress and displacement of tunnel constructed in rock mass using UDEC (Universal Distinct Element Code). It was obtained that normal distribution function of joint trace length is more critical on the stability of tunnel, and exponential distribution function has less effect on the tunnel stability compared to the two other distribution functions.http://ijmge.ut.ac.ir/article_56115_dbb649093aeb9f46c5eaf81c9cd3e867.pdfjoint trace lengthstatistical distribution functionstunnel stabilityUDEC |
| spellingShingle | Kayvan Ghorbani Mohsen Zahedi Ahmad Asaadi Effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock mass International Journal of Mining and Geo-Engineering joint trace length statistical distribution functions tunnel stability UDEC |
| title | Effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock mass |
| title_full | Effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock mass |
| title_fullStr | Effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock mass |
| title_full_unstemmed | Effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock mass |
| title_short | Effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock mass |
| title_sort | effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock mass |
| topic | joint trace length statistical distribution functions tunnel stability UDEC |
| url | http://ijmge.ut.ac.ir/article_56115_dbb649093aeb9f46c5eaf81c9cd3e867.pdf |
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