Seismic Stability of Loess Tunnel with Rainfall Seepage
Rainfall seepage changes the mechanical properties of loess masses. Considering fluid-solid coupling, the calculation model of a loess tunnel is established according to the finite element method (FEM). Based on porous media seepage theory and rainfall infiltration depth theory and considering the i...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8147950 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832550997755428864 |
|---|---|
| author | Xuansheng Cheng Wanlin Zhang Jing Fan Xiaoyan Zhang Haibo Liu Xinhai Zhou |
| author_facet | Xuansheng Cheng Wanlin Zhang Jing Fan Xiaoyan Zhang Haibo Liu Xinhai Zhou |
| author_sort | Xuansheng Cheng |
| collection | DOAJ |
| description | Rainfall seepage changes the mechanical properties of loess masses. Considering fluid-solid coupling, the calculation model of a loess tunnel is established according to the finite element method (FEM). Based on porous media seepage theory and rainfall infiltration depth theory and considering the infiltrated depth of the loess surface for different rainfall intensities over a certain period, the stability of a loess tunnel under different rainfall amounts and loess cover thicknesses is studied using the dynamic finite element static strength reduction method. The results show that under the same rainfall intensity, the safety factor increases with the depth of the tunnel; the safety factor of the loess tunnel with the same loess cover thickness decreases with increasing infiltration depth. The plastic strain is mainly distributed on both sides of the vault and the arch feet. The stability of the loess tunnel is directly related to the loess cover thickness and rainfall seepage. |
| format | Article |
| id | doaj-art-a9a1fe0815dc4224b7492db3130a3a04 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-a9a1fe0815dc4224b7492db3130a3a042025-02-03T06:05:17ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/81479508147950Seismic Stability of Loess Tunnel with Rainfall SeepageXuansheng Cheng0Wanlin Zhang1Jing Fan2Xiaoyan Zhang3Haibo Liu4Xinhai Zhou5School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaSchool of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaSchool of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaSchool of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaSchool of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaWestern Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, ChinaRainfall seepage changes the mechanical properties of loess masses. Considering fluid-solid coupling, the calculation model of a loess tunnel is established according to the finite element method (FEM). Based on porous media seepage theory and rainfall infiltration depth theory and considering the infiltrated depth of the loess surface for different rainfall intensities over a certain period, the stability of a loess tunnel under different rainfall amounts and loess cover thicknesses is studied using the dynamic finite element static strength reduction method. The results show that under the same rainfall intensity, the safety factor increases with the depth of the tunnel; the safety factor of the loess tunnel with the same loess cover thickness decreases with increasing infiltration depth. The plastic strain is mainly distributed on both sides of the vault and the arch feet. The stability of the loess tunnel is directly related to the loess cover thickness and rainfall seepage.http://dx.doi.org/10.1155/2020/8147950 |
| spellingShingle | Xuansheng Cheng Wanlin Zhang Jing Fan Xiaoyan Zhang Haibo Liu Xinhai Zhou Seismic Stability of Loess Tunnel with Rainfall Seepage Advances in Civil Engineering |
| title | Seismic Stability of Loess Tunnel with Rainfall Seepage |
| title_full | Seismic Stability of Loess Tunnel with Rainfall Seepage |
| title_fullStr | Seismic Stability of Loess Tunnel with Rainfall Seepage |
| title_full_unstemmed | Seismic Stability of Loess Tunnel with Rainfall Seepage |
| title_short | Seismic Stability of Loess Tunnel with Rainfall Seepage |
| title_sort | seismic stability of loess tunnel with rainfall seepage |
| url | http://dx.doi.org/10.1155/2020/8147950 |
| work_keys_str_mv | AT xuanshengcheng seismicstabilityofloesstunnelwithrainfallseepage AT wanlinzhang seismicstabilityofloesstunnelwithrainfallseepage AT jingfan seismicstabilityofloesstunnelwithrainfallseepage AT xiaoyanzhang seismicstabilityofloesstunnelwithrainfallseepage AT haiboliu seismicstabilityofloesstunnelwithrainfallseepage AT xinhaizhou seismicstabilityofloesstunnelwithrainfallseepage |