Numerical Modeling for Engineering Analysis and Designing of Optimum Support Systems for Headrace Tunnel
The empirical and numerical design approaches are considered very important in the viable and efficient design of support systems, stability analysis for tunnel, and underground excavations. In the present research work, the rock mass rating (RMR) and tunneling quality index (Q-system) were used as...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/7159873 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832567960422580224 |
|---|---|
| author | Sajjad Hussain Zahid Ur Rehman Noor Mohammad Muhammad Tahir Khan Shahzada Sajjad Wali Khan Muhammad Salman Mujahid Khan Akhtar Gul |
| author_facet | Sajjad Hussain Zahid Ur Rehman Noor Mohammad Muhammad Tahir Khan Shahzada Sajjad Wali Khan Muhammad Salman Mujahid Khan Akhtar Gul |
| author_sort | Sajjad Hussain |
| collection | DOAJ |
| description | The empirical and numerical design approaches are considered very important in the viable and efficient design of support systems, stability analysis for tunnel, and underground excavations. In the present research work, the rock mass rating (RMR) and tunneling quality index (Q-system) were used as empirical methods for characterization of rock mass based on real-time geological and site geotechnical data and physical and strength properties of rock samples collected from the alignment of tunnel. The rock mass along the tunnel axis was classified into three geotechnical units (GU-1, GU-2, and GU-3). The support systems for each geotechnical unit were designed. The 2D elastoplastic finite-element method (FEM) was used for the analysis of rock mass behavior, in situ and redistribution stresses, plastic thickness around the tunnel, and performance of the design supports for the selection of optimum support system among RMR and Q supports for each geotechnical unit of tunnel. Based on results, Q support systems were found more effective for GU-1 and GU-2 as compared to RMR support systems and RMR support systems for GU-3 as compared to Q support systems. |
| format | Article |
| id | doaj-art-bf0ff338a31e4f9bbab64837a64fe4bb |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-bf0ff338a31e4f9bbab64837a64fe4bb2025-02-03T01:00:10ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/71598737159873Numerical Modeling for Engineering Analysis and Designing of Optimum Support Systems for Headrace TunnelSajjad Hussain0Zahid Ur Rehman1Noor Mohammad2Muhammad Tahir3Khan Shahzada4Sajjad Wali Khan5Muhammad Salman6Mujahid Khan7Akhtar Gul8Department of Mining Engineering, University of Engineering and Technology, Peshawar, PakistanDepartment of Mining Engineering, University of Engineering and Technology, Peshawar, PakistanDepartment of Mining Engineering, University of Engineering and Technology, Peshawar, PakistanDepartment of Mining Engineering, University of Engineering and Technology, Peshawar, PakistanDepartment of Civil Engineering, University of Engineering and Technology, Peshawar, PakistanDepartment of Civil Engineering, University of Engineering and Technology, Peshawar, PakistanDepartment of Civil Engineering, University of Engineering and Technology, Peshawar, PakistanDepartment of Civil Engineering, University of Engineering and Technology, Peshawar, PakistanDepartment of Civil Engineering, University of Engineering and Technology, Peshawar, PakistanThe empirical and numerical design approaches are considered very important in the viable and efficient design of support systems, stability analysis for tunnel, and underground excavations. In the present research work, the rock mass rating (RMR) and tunneling quality index (Q-system) were used as empirical methods for characterization of rock mass based on real-time geological and site geotechnical data and physical and strength properties of rock samples collected from the alignment of tunnel. The rock mass along the tunnel axis was classified into three geotechnical units (GU-1, GU-2, and GU-3). The support systems for each geotechnical unit were designed. The 2D elastoplastic finite-element method (FEM) was used for the analysis of rock mass behavior, in situ and redistribution stresses, plastic thickness around the tunnel, and performance of the design supports for the selection of optimum support system among RMR and Q supports for each geotechnical unit of tunnel. Based on results, Q support systems were found more effective for GU-1 and GU-2 as compared to RMR support systems and RMR support systems for GU-3 as compared to Q support systems.http://dx.doi.org/10.1155/2018/7159873 |
| spellingShingle | Sajjad Hussain Zahid Ur Rehman Noor Mohammad Muhammad Tahir Khan Shahzada Sajjad Wali Khan Muhammad Salman Mujahid Khan Akhtar Gul Numerical Modeling for Engineering Analysis and Designing of Optimum Support Systems for Headrace Tunnel Advances in Civil Engineering |
| title | Numerical Modeling for Engineering Analysis and Designing of Optimum Support Systems for Headrace Tunnel |
| title_full | Numerical Modeling for Engineering Analysis and Designing of Optimum Support Systems for Headrace Tunnel |
| title_fullStr | Numerical Modeling for Engineering Analysis and Designing of Optimum Support Systems for Headrace Tunnel |
| title_full_unstemmed | Numerical Modeling for Engineering Analysis and Designing of Optimum Support Systems for Headrace Tunnel |
| title_short | Numerical Modeling for Engineering Analysis and Designing of Optimum Support Systems for Headrace Tunnel |
| title_sort | numerical modeling for engineering analysis and designing of optimum support systems for headrace tunnel |
| url | http://dx.doi.org/10.1155/2018/7159873 |
| work_keys_str_mv | AT sajjadhussain numericalmodelingforengineeringanalysisanddesigningofoptimumsupportsystemsforheadracetunnel AT zahidurrehman numericalmodelingforengineeringanalysisanddesigningofoptimumsupportsystemsforheadracetunnel AT noormohammad numericalmodelingforengineeringanalysisanddesigningofoptimumsupportsystemsforheadracetunnel AT muhammadtahir numericalmodelingforengineeringanalysisanddesigningofoptimumsupportsystemsforheadracetunnel AT khanshahzada numericalmodelingforengineeringanalysisanddesigningofoptimumsupportsystemsforheadracetunnel AT sajjadwalikhan numericalmodelingforengineeringanalysisanddesigningofoptimumsupportsystemsforheadracetunnel AT muhammadsalman numericalmodelingforengineeringanalysisanddesigningofoptimumsupportsystemsforheadracetunnel AT mujahidkhan numericalmodelingforengineeringanalysisanddesigningofoptimumsupportsystemsforheadracetunnel AT akhtargul numericalmodelingforengineeringanalysisanddesigningofoptimumsupportsystemsforheadracetunnel |