Limiting drainage criterion for groundwater of mountain tunnel
Limiting drainage criterion for groundwater of mountain tunnel
复制标题
山岭隧道地下水极限排水准则
DOI：
10.1007/s11771-014-2474-6
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发表时间：
2014-12
影响因子：
4.4
通讯作者：
Luo, Wei
中科院分区：
文献类型：
--
作者：
Zhao, Lian-heng;Li, Liang;Zou, Jin-feng;Luo, Wei
Large amount of groundwater discharging from tunnel is likely to cause destruction of the ecological environment in the vicinity of the tunnel, thus an appropriate drainage criterion should be established to balance the tunnel construction and groundwater. To assess the related problems, an limiting drainage standard ranging from 0.5 to 2.0 m3/(m·d) was suggested for mountain tunnels based on survey and comparative analysis. After that, for the purpose of verifying the rationality of the standard, a calculated formula for dewatering funnel volume caused by drainage was deduced on the basis of the groundwater dynamics and experience method. Furthermore, the equation about the relationship between water discharge and drawdown of groundwater table was presented. The permeability coefficient, specific yield and groundwater table value were introduced, and then combined with the above equation, the drawdown of groundwater table under the proposed limiting drainage criterion was calculated. It is shown that the proposed drainage standard can reach the purpose of protecting ecological environment under the following two conditions. One is the permeability coefficient ranges from 10−4to 10−5m/s and the specific yield ranges from 0.1 to 0.001. The other is the permeability coefficient varies from 10−6to 10−8m/s and the specific yield varies from 0.1 to 0.01. In addition, a majority of common geotechnical layers are involved in the above ranges. Thus, the proposed limiting drainage standard which ranges from 0.5 to 2.0 m3/(m·d) for mountain tunnel is reasonable.
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DOI：
--
发表时间：
2007
期刊：
Chinese journal of rock mechanics and engineering
影响因子：
--
作者：
Xiang Yan-yong
通讯作者：
Xiang Yan-yong
影响因子：
4.4
作者：
H. Dan;Su-ping Luo;Liang Li;Lian-heng Zhao
通讯作者：
H. Dan;Su-ping Luo;Liang Li;Lian-heng Zhao
影响因子：
2.8
作者：
Y. Chiu;Y. Chia
通讯作者：
Y. Chiu;Y. Chia
影响因子：
2.6
作者：
Shizhong Lei
通讯作者：
Shizhong Lei
影响因子：
6.9
作者：
M. Tani
通讯作者：
M. Tani