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Estimation of Deformation Mechanisms and Countermeasure Policies for Mountain Tunnels Caused by Heavy Rainfall

Drainage boring was conducted in a mountain tunnel with an impermeable layer above to prevent re-displacement caused by a rise in the groundwater level around the tunnel during heavy rainfall. As a result, no re-displacement was observed after heavy rainfall. However, because of the uncertainty in the effectiveness of the re-displacement measures, it was necessary to estimate the mechanism of re-displacement and consider additional countermeasures.

Japan Society of Civil Engineers Annual Meeting

Japan Society of Civil Engineers 2023 Annual Meeting

Japan Society of Civil Engineers 2023 Annual Meeting

[CS1-22]Estimation of Deformation Mechanisms and Countermeasure Policies for Mountain Tunnels Caused by Heavy Rainfall

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