Limit Drainage of Separated Tunnel Based on Ecological Groundwater Table: A Case Study
After the excavation of the tunnel in water-rich regions, the groundwater is continuously discharged into the tunnel. Excessive discharge will cause the groundwater table to drop, which will destroy the normal growth of vegetation and ecological balance. In order to protect the ecological environmen...
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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 Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/2669924 |
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| author | Jianyou Yu Shensheng Ge Lingchao Hou Yiteng Zhang Yuzhu Liu |
| author_facet | Jianyou Yu Shensheng Ge Lingchao Hou Yiteng Zhang Yuzhu Liu |
| author_sort | Jianyou Yu |
| collection | DOAJ |
| description | After the excavation of the tunnel in water-rich regions, the groundwater is continuously discharged into the tunnel. Excessive discharge will cause the groundwater table to drop, which will destroy the normal growth of vegetation and ecological balance. In order to protect the ecological environment, the key is to develop an effective method to determine the tunnel drainage. In this paper, a method for calculating the limit drainage of the tunnel is proposed based on area-well method and the concept of ecological groundwater table in ecology and agronomy. Some conclusions are drawn as follows. (1) When the ecological groundwater table is constant, with the increase of groundwater discharge, the drainage influence range of the tunnel decreases, the rainfall supplement quantity Wt within the drainage influence range decreases, and the total groundwater discharge quantity Qt also decreases gradually. Since the decreasing rate of Wt is greater than that of Qt, there is a unit drainage that makes the total groundwater discharge equal to rainfall supplement. (2) A separated tunnel under construction in Fuzhou City is taken as an example; the limit drainage q0 of the separated double tunnel is 0.48 m3/(m·d) considering ecological groundwater table. |
| format | Article |
| id | doaj-art-913bf876db1e475bafcfffae39da1a2a |
| institution | DOAJ |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-913bf876db1e475bafcfffae39da1a2a2025-08-20T03:20:33ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/26699242669924Limit Drainage of Separated Tunnel Based on Ecological Groundwater Table: A Case StudyJianyou Yu0Shensheng Ge1Lingchao Hou2Yiteng Zhang3Yuzhu Liu4Hebei Provincial Expressway Yanqing-Chongli Construction Office, Zhangjiakou 075000, ChinaHebei Provincial Expressway Yanqing-Chongli Construction Office, Zhangjiakou 075000, ChinaHebei Provincial Expressway Yanqing-Chongli Construction Office, Zhangjiakou 075000, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, ChinaAfter the excavation of the tunnel in water-rich regions, the groundwater is continuously discharged into the tunnel. Excessive discharge will cause the groundwater table to drop, which will destroy the normal growth of vegetation and ecological balance. In order to protect the ecological environment, the key is to develop an effective method to determine the tunnel drainage. In this paper, a method for calculating the limit drainage of the tunnel is proposed based on area-well method and the concept of ecological groundwater table in ecology and agronomy. Some conclusions are drawn as follows. (1) When the ecological groundwater table is constant, with the increase of groundwater discharge, the drainage influence range of the tunnel decreases, the rainfall supplement quantity Wt within the drainage influence range decreases, and the total groundwater discharge quantity Qt also decreases gradually. Since the decreasing rate of Wt is greater than that of Qt, there is a unit drainage that makes the total groundwater discharge equal to rainfall supplement. (2) A separated tunnel under construction in Fuzhou City is taken as an example; the limit drainage q0 of the separated double tunnel is 0.48 m3/(m·d) considering ecological groundwater table.http://dx.doi.org/10.1155/2021/2669924 |
| spellingShingle | Jianyou Yu Shensheng Ge Lingchao Hou Yiteng Zhang Yuzhu Liu Limit Drainage of Separated Tunnel Based on Ecological Groundwater Table: A Case Study Advances in Civil Engineering |
| title | Limit Drainage of Separated Tunnel Based on Ecological Groundwater Table: A Case Study |
| title_full | Limit Drainage of Separated Tunnel Based on Ecological Groundwater Table: A Case Study |
| title_fullStr | Limit Drainage of Separated Tunnel Based on Ecological Groundwater Table: A Case Study |
| title_full_unstemmed | Limit Drainage of Separated Tunnel Based on Ecological Groundwater Table: A Case Study |
| title_short | Limit Drainage of Separated Tunnel Based on Ecological Groundwater Table: A Case Study |
| title_sort | limit drainage of separated tunnel based on ecological groundwater table a case study |
| url | http://dx.doi.org/10.1155/2021/2669924 |
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