| Autor: |
Naeem Abbas, Kegang Li, Yewuhalashet Fissha, Wang Lei, Muhammad Zaka Emad, N. Sri Chandrahas, Jitendra Khatti, Blessing Olamide Taiwo, Mohammed Sazid, Zemicael Gebrehiwot, Shahab Hosseini, N. Rao Cheepurupalli |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Discover Materials, Vol 4, Iss 1, Pp 1-17 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2730-7727 |
| DOI: |
10.1007/s43939-024-00144-z |
| Popis: |
Abstract This study investigates stress-deformation behavior in Himalayan tunnels, focusing on how geological features impact stability. The objective is to enhance the understanding of displacement phenomena, particularly in tunnels traversing jointed rocks. A modified support system, to specific rock mass classifications, is employed to address the unique challenges posed by geological discontinuities. Kinematic analysis reveals a 20% probability of wedge failure due to these discontinuities. Numerical analysis using Hoek–Brown parameters identifies significant stress concentrations at the tunnel crown, especially in jointed sections, where increased convergence and displacement (1.2 mm at the crown compared to 0.25 mm at the walls) highlight the susceptibility to deformation. The study indicates the critical need for specialized support in jointed regions to mitigate stability risks. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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