Effect of Surface Blasting on Subway Tunnels- A Parametric Study
During wars and crises, the underground tunnels are used as a safe space. Therefore, the stability and safety of them under a blast is of particular importance. In this paper, the Finite Difference Method has been used to study the influence of the change in geotechnical parameters and depth on surf...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Yazd University
2017-01-01
|
| Series: | Analytical and Numerical Methods in Mining Engineering |
| Subjects: | |
| Online Access: | http://anm.yazd.ac.ir/article_958_a3ae6245cb1ed1f70488e2b4845fbb81.pdf |
| _version_ | 1818551729524834304 |
|---|---|
| author | Hossein Entezari Zarch Kazem Barkhordari |
| author_facet | Hossein Entezari Zarch Kazem Barkhordari |
| author_sort | Hossein Entezari Zarch |
| collection | DOAJ |
| description | During wars and crises, the underground tunnels are used as a safe space. Therefore, the stability and safety of them under a blast is of particular importance. In this paper, the Finite Difference Method has been used to study the influence of the change in geotechnical parameters and depth on surface blasting on subway tunnels. Results showed that increasing the internal friction angle, modulus of elasticity and cohesion of the soil reduced the effects of blast loads on the vertical displacement and bending moment in the center of tunnel crown. Furthermore, the results showed that increasing the depth of the tunnel reduced the effects of blast loading. Comparing all parameters collectively showed that the increase in the modulus of elasticity of the soil and depth of the tunnel is the most effective in reducing the influence of the blast loads on the vertical displacement and bending moment of the tunnel crown, respectively. |
| first_indexed | 2024-12-12T09:03:46Z |
| format | Article |
| id | doaj.art-656a474cba694c00929ccfeb96c8b97d |
| institution | Directory Open Access Journal |
| issn | 2251-6565 2251-6565 |
| language | English |
| last_indexed | 2024-12-12T09:03:46Z |
| publishDate | 2017-01-01 |
| publisher | Yazd University |
| record_format | Article |
| series | Analytical and Numerical Methods in Mining Engineering |
| spelling | doaj.art-656a474cba694c00929ccfeb96c8b97d2022-12-22T00:29:45ZengYazd UniversityAnalytical and Numerical Methods in Mining Engineering2251-65652251-65652017-01-016ویژه نامه انگلیسی6372958Effect of Surface Blasting on Subway Tunnels- A Parametric StudyHossein Entezari Zarch0Kazem Barkhordari1Dept. of Civil, Yazd University, IranDept. of Civil, Yazd University, IranDuring wars and crises, the underground tunnels are used as a safe space. Therefore, the stability and safety of them under a blast is of particular importance. In this paper, the Finite Difference Method has been used to study the influence of the change in geotechnical parameters and depth on surface blasting on subway tunnels. Results showed that increasing the internal friction angle, modulus of elasticity and cohesion of the soil reduced the effects of blast loads on the vertical displacement and bending moment in the center of tunnel crown. Furthermore, the results showed that increasing the depth of the tunnel reduced the effects of blast loading. Comparing all parameters collectively showed that the increase in the modulus of elasticity of the soil and depth of the tunnel is the most effective in reducing the influence of the blast loads on the vertical displacement and bending moment of the tunnel crown, respectively.http://anm.yazd.ac.ir/article_958_a3ae6245cb1ed1f70488e2b4845fbb81.pdfBlast LoadingSubway TunnelsFinite Difference Methoddynamic analysis |
| spellingShingle | Hossein Entezari Zarch Kazem Barkhordari Effect of Surface Blasting on Subway Tunnels- A Parametric Study Analytical and Numerical Methods in Mining Engineering Blast Loading Subway Tunnels Finite Difference Method dynamic analysis |
| title | Effect of Surface Blasting on Subway Tunnels- A Parametric Study |
| title_full | Effect of Surface Blasting on Subway Tunnels- A Parametric Study |
| title_fullStr | Effect of Surface Blasting on Subway Tunnels- A Parametric Study |
| title_full_unstemmed | Effect of Surface Blasting on Subway Tunnels- A Parametric Study |
| title_short | Effect of Surface Blasting on Subway Tunnels- A Parametric Study |
| title_sort | effect of surface blasting on subway tunnels a parametric study |
| topic | Blast Loading Subway Tunnels Finite Difference Method dynamic analysis |
| url | http://anm.yazd.ac.ir/article_958_a3ae6245cb1ed1f70488e2b4845fbb81.pdf |
| work_keys_str_mv | AT hosseinentezarizarch effectofsurfaceblastingonsubwaytunnelsaparametricstudy AT kazembarkhordari effectofsurfaceblastingonsubwaytunnelsaparametricstudy |