Articles | Volume 20, issue 12
Nat. Hazards Earth Syst. Sci., 20, 3343–3359, 2020
https://doi.org/10.5194/nhess-20-3343-2020
Nat. Hazards Earth Syst. Sci., 20, 3343–3359, 2020
https://doi.org/10.5194/nhess-20-3343-2020

Research article 10 Dec 2020

Research article | 10 Dec 2020

Experimental assessment of the relationship between rainfall intensity and sinkholes caused by damaged sewer pipes

Tae-Young Kwak et al.

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Short summary
In this study, model tests were used to analyze the effects of rainfall intensity on the formation of the eroded zone and the occurrence of sinkholes due to groundwater infiltration through pipe defects. The model tests were conducted to simulate the actual site conditions considering the soil used around sewer pipe networks and the sewer pipe landfill standards. The groundwater level was applied to the model tests by setting three hydraulic heads based on heavy-rainfall characteristics.
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