In this paper, using SGR (Site Groundwater Rating) method, 11 km of Amirkabir tunnel has been studied and
categorized into quantitative and qualitative classes from groundwater hazard point of view. Considered
parameters in this method are: joint frequency, joint aper
More
In this paper, using SGR (Site Groundwater Rating) method, 11 km of Amirkabir tunnel has been studied and
categorized into quantitative and qualitative classes from groundwater hazard point of view. Considered
parameters in this method are: joint frequency, joint aperture, karstification, crashed zone, schistosity, and head
of water above tunnel, soil permeability and annual raining. Using SGR method, tunnel site can be categorized
into six different classes from no risk to critical. According to this classification more than 60% of Amirkabir
tunnel has been located in no risk class and results are compatible with the results of analytical method.
Furthermore, approximately 5% of tunnel has been found in critical class that mostly coincides on crashed zones
and following analytical method results, inflow rate is 0.46 L/sec/m in this portion of tunnel.
Manuscript profile
