Analysis of Debris Flow Reduction Effect of Check Dam Types considering the Mountain Stream Shape: A Case Study of 2016 Debris Flow Hazard in Ulleung-do Island, South Korea
Table 1
Major steep slope disasters in Ulleung-do Island.
Date
Cause
Details
Jul. 18, 2002
Localized heavy rainfall
Landslides in Cheonbu-ri, Buk-myeon, and Uleung-gun
Sept. 6, 2005
Typhoon “Nabi”
Landslides in the upper part of Namseo Tunnel, Seomyeon, and Uleung-gun
Aug. 25, 2015
Typhoon “Goni”
Rockfalls and landslides in the upper part of Guam Tunnel, Seomyeon, and Uleung-gun
Nov. 13, 2015
Localized heavy rainfall
Landslides near Namyang Tunnel, Seomyeon, and Uleung-gun (scale about 200 m3)
Feb. 15, 2016
Freeze thawing
Rockfalls in the vicinity of Manira Hotel, Uleung-eup, and Uleung-gun (scale about 500 m3)
Aug. 30, 2016
Typhoon “Lionrock”
Debris flows and landslides in the upper part of Piam (rock shed) Tunnel, Gadu-bong, Uleung-eup, and Uleung-gun
