Study on the Influence of Tectonic Stress on Stability of Horseshoe-Shaped Tunnels
While the tunnel is in the high tectonic stress environment and surrounding rock of tunnel has the characteristics of soft texture and stronger expansion, the preference of tunnel shape is horseshoe. An elastic-plastic model is analyzed by complex function theory in accordance with the deformation c...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/5566142 |
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| _version_ | 1832546084929404928 |
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| author | Xin Lv Shuzhi Wang Yu Qiu Xiangxin Liu |
| author_facet | Xin Lv Shuzhi Wang Yu Qiu Xiangxin Liu |
| author_sort | Xin Lv |
| collection | DOAJ |
| description | While the tunnel is in the high tectonic stress environment and surrounding rock of tunnel has the characteristics of soft texture and stronger expansion, the preference of tunnel shape is horseshoe. An elastic-plastic model is analyzed by complex function theory in accordance with the deformation characteristics of a horseshoe-shaped tunnel in an engineering site. The numerical model of the tunnel is built by FLAC3D, and the influence of the magnitude and direction of structural stress on the horseshoe-shaped tunnel is studied in detail. Finally, the security support of the tunnel is discussed. Results show that the stress concentration phenomenon is easily focused on the left, right, and bottom sides of the tunnel; these places should therefore be the focus of attention of tunnel stability analysis. The magnitude and direction of tectonic stress greatly affect the stability of the horseshoe-shaped tunnel. Similarly, the magnitude of tectonic stress can significantly affect the deformation state of the tunnel. The direction of tectonic stress mainly reflects the orientation of the tunnel. In addition, the orientation of the tunnel should be arranged along the maximum direction of principal stress. |
| format | Article |
| id | doaj-art-bfef837429ba4769bab0ead0567cb1ab |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-bfef837429ba4769bab0ead0567cb1ab2025-02-03T07:23:58ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/55661425566142Study on the Influence of Tectonic Stress on Stability of Horseshoe-Shaped TunnelsXin Lv0Shuzhi Wang1Yu Qiu2Xiangxin Liu3Modern Technology and Education Center, North China University of Science and Technology, Tangshan 063210, ChinaCollege of Mining Engineering, North China University of Science and Technology, Tangshan 063210, ChinaSinosteel Maanshan Institute of Mining Research Co., Ltd., Ma’anshan 243000, ChinaCollege of Mining Engineering, North China University of Science and Technology, Tangshan 063210, ChinaWhile the tunnel is in the high tectonic stress environment and surrounding rock of tunnel has the characteristics of soft texture and stronger expansion, the preference of tunnel shape is horseshoe. An elastic-plastic model is analyzed by complex function theory in accordance with the deformation characteristics of a horseshoe-shaped tunnel in an engineering site. The numerical model of the tunnel is built by FLAC3D, and the influence of the magnitude and direction of structural stress on the horseshoe-shaped tunnel is studied in detail. Finally, the security support of the tunnel is discussed. Results show that the stress concentration phenomenon is easily focused on the left, right, and bottom sides of the tunnel; these places should therefore be the focus of attention of tunnel stability analysis. The magnitude and direction of tectonic stress greatly affect the stability of the horseshoe-shaped tunnel. Similarly, the magnitude of tectonic stress can significantly affect the deformation state of the tunnel. The direction of tectonic stress mainly reflects the orientation of the tunnel. In addition, the orientation of the tunnel should be arranged along the maximum direction of principal stress.http://dx.doi.org/10.1155/2021/5566142 |
| spellingShingle | Xin Lv Shuzhi Wang Yu Qiu Xiangxin Liu Study on the Influence of Tectonic Stress on Stability of Horseshoe-Shaped Tunnels Advances in Materials Science and Engineering |
| title | Study on the Influence of Tectonic Stress on Stability of Horseshoe-Shaped Tunnels |
| title_full | Study on the Influence of Tectonic Stress on Stability of Horseshoe-Shaped Tunnels |
| title_fullStr | Study on the Influence of Tectonic Stress on Stability of Horseshoe-Shaped Tunnels |
| title_full_unstemmed | Study on the Influence of Tectonic Stress on Stability of Horseshoe-Shaped Tunnels |
| title_short | Study on the Influence of Tectonic Stress on Stability of Horseshoe-Shaped Tunnels |
| title_sort | study on the influence of tectonic stress on stability of horseshoe shaped tunnels |
| url | http://dx.doi.org/10.1155/2021/5566142 |
| work_keys_str_mv | AT xinlv studyontheinfluenceoftectonicstressonstabilityofhorseshoeshapedtunnels AT shuzhiwang studyontheinfluenceoftectonicstressonstabilityofhorseshoeshapedtunnels AT yuqiu studyontheinfluenceoftectonicstressonstabilityofhorseshoeshapedtunnels AT xiangxinliu studyontheinfluenceoftectonicstressonstabilityofhorseshoeshapedtunnels |