THE NEW RELATIONSHIPS FOR THE COMPARISON OF 2D AND 3D DEFORMATION OF A TUNNEL
To obtain the displacements of a tunnel is one of the major issues in the tunnel. In this paper, using the finite difference and finite element methods and measurements data, new rela...
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| Format: | Article |
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Sharif University of Technology
2017-08-01
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| Series: | مهندسی عمران شریف |
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| Online Access: | https://sjce.journals.sharif.edu/article_1130_16bdb71080279875d11910f1ce250006.pdf |
| _version_ | 1797736776915222528 |
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| author | M. Hajiazizi M. Hashemi |
| author_facet | M. Hajiazizi M. Hashemi |
| author_sort | M. Hajiazizi |
| collection | DOAJ |
| description | To obtain the displacements of a tunnel is one of the major issues in the tunnel. In this paper, using the finite difference and finite element methods and measurements data, new relationships are presented between the 2-D and 3-D deformation of a tunnel. This comparison was performed between competent rock and jointed rock mass where different results are considerable. Empirical, numerical and analytical methods are regarded as different tools for design of tunnel. Nowadays, due to the advancement of technology, limitation on surface spaces, and political and security issues, many developed and developing countries focus on constructing underground structures for civil and military applications. Underground road and highways, tunnels, urban subway networks, power plants, nuclear waste repositories, oil reservoirs, shelters, and warehouses are structures which are rapidly under construction in different countries. It should be noted that these achievements have been made over a long time, accompanied by different problems. In order to predict the displacement of a tunnel with regard to its 2-D deformation, the new equations are proposed in this paper in 3-D case that can be employed. Due to the fact that in many numerical analyses, modeling is done in 2-D case, the relationships presented in this article can be real results. According to the results of the various analyses of intact rock mass, displacement of tunnel in 3-D is less than that in the 2-D case. But, in the jointed rock mass the displacement of tunnel in 2-D is less than that in the 3-D case. The results of this research have been verified by tunnel of Gavoshan's dam. After comparing and analyzing the results, relationships have been proposed for the coloration between 2-D and 3-D in intact rock mass and jointed rock mass. The solved examples give reasonable and acceptable results. |
| first_indexed | 2024-03-12T13:18:50Z |
| format | Article |
| id | doaj.art-c5ffa89e7fd545008f4773ecef496a97 |
| institution | Directory Open Access Journal |
| issn | 2676-4768 2676-4776 |
| language | fas |
| last_indexed | 2024-03-12T13:18:50Z |
| publishDate | 2017-08-01 |
| publisher | Sharif University of Technology |
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| series | مهندسی عمران شریف |
| spelling | doaj.art-c5ffa89e7fd545008f4773ecef496a972023-08-26T10:21:13ZfasSharif University of Technologyمهندسی عمران شریف2676-47682676-47762017-08-0133.22.1313810.24200/j30.2017.11301130THE NEW RELATIONSHIPS FOR THE COMPARISON OF 2D AND 3D DEFORMATION OF A TUNNELM. Hajiazizi0M. Hashemi1Dept. of Civil Engineering Razi University, KermanshahDept. of Civil Engineering Razi University, KermanshahTo obtain the displacements of a tunnel is one of the major issues in the tunnel. In this paper, using the finite difference and finite element methods and measurements data, new relationships are presented between the 2-D and 3-D deformation of a tunnel. This comparison was performed between competent rock and jointed rock mass where different results are considerable. Empirical, numerical and analytical methods are regarded as different tools for design of tunnel. Nowadays, due to the advancement of technology, limitation on surface spaces, and political and security issues, many developed and developing countries focus on constructing underground structures for civil and military applications. Underground road and highways, tunnels, urban subway networks, power plants, nuclear waste repositories, oil reservoirs, shelters, and warehouses are structures which are rapidly under construction in different countries. It should be noted that these achievements have been made over a long time, accompanied by different problems. In order to predict the displacement of a tunnel with regard to its 2-D deformation, the new equations are proposed in this paper in 3-D case that can be employed. Due to the fact that in many numerical analyses, modeling is done in 2-D case, the relationships presented in this article can be real results. According to the results of the various analyses of intact rock mass, displacement of tunnel in 3-D is less than that in the 2-D case. But, in the jointed rock mass the displacement of tunnel in 2-D is less than that in the 3-D case. The results of this research have been verified by tunnel of Gavoshan's dam. After comparing and analyzing the results, relationships have been proposed for the coloration between 2-D and 3-D in intact rock mass and jointed rock mass. The solved examples give reasonable and acceptable results.https://sjce.journals.sharif.edu/article_1130_16bdb71080279875d11910f1ce250006.pdftunneldisplacementnumerical methods2d analysis3d analysis |
| spellingShingle | M. Hajiazizi M. Hashemi THE NEW RELATIONSHIPS FOR THE COMPARISON OF 2D AND 3D DEFORMATION OF A TUNNEL مهندسی عمران شریف tunnel displacement numerical methods 2d analysis 3d analysis |
| title | THE NEW RELATIONSHIPS FOR THE COMPARISON OF 2D AND 3D DEFORMATION OF A TUNNEL |
| title_full | THE NEW RELATIONSHIPS FOR THE COMPARISON OF 2D AND 3D DEFORMATION OF A TUNNEL |
| title_fullStr | THE NEW RELATIONSHIPS FOR THE COMPARISON OF 2D AND 3D DEFORMATION OF A TUNNEL |
| title_full_unstemmed | THE NEW RELATIONSHIPS FOR THE COMPARISON OF 2D AND 3D DEFORMATION OF A TUNNEL |
| title_short | THE NEW RELATIONSHIPS FOR THE COMPARISON OF 2D AND 3D DEFORMATION OF A TUNNEL |
| title_sort | the new relationships for the comparison of 2d and 3d deformation of a tunnel |
| topic | tunnel displacement numerical methods 2d analysis 3d analysis |
| url | https://sjce.journals.sharif.edu/article_1130_16bdb71080279875d11910f1ce250006.pdf |
| work_keys_str_mv | AT mhajiazizi thenewrelationshipsforthecomparisonof2dand3ddeformationofatunnel AT mhashemi thenewrelationshipsforthecomparisonof2dand3ddeformationofatunnel |