Case Study on the Field Characteristics of Road Embankment Slope Failure in the Mountainous Regions of Korea

Lee, Jong-Hyun; Bautista, Ferdinand E.; Kim, Seung-Hyun; Koo, Ho-Bon

Journal of the Korean Society of Hazard Mitigation 2012;12(3):101-108.
Published online June 30, 2012.

Jong-Hyun Lee, Ferdinand E. Bautista, Seung-Hyun Kim, Ho-Bon Koo

Abstract

The continuous occurrence of embankment slope failure caused by torrential rains during the rainy season has affected the mountainous regions in Korea every year. Numerous lives were lost and extensive properties were damaged in slope related calamities and enormous budget was required to restore the damaged roads and infrastructure. The need to establish an embankment management system was realized and investigation of failure prone embankment slopes recommended by the national road administration office along the national road in the mountainous regions were performed. The field characteristics of embankment failure determined in the field investigation was presented and the efficient methods to mitigate these hazards and disaster were recommended.

Key Words: Embankment slope; Embankment slope failure; Embankment Slope Management System(ESMS); Cut Slope Management System(CSMS)

요지

국지적 집중호우로 인하여 절토사면 붕괴 및 산사태와 더불어 수많은 도로성토사면이 다수 붕괴되거나 유실되었다. 이로 인하여 막대한 인명 및 재산 피해가 발생되었으며, 이를 복원하기 위한 많은 수해 복구 예산이 소요되었다. 성토사면에 대한 관리 필요성이 제기되었으며, 본 연구에서는 국토관리사무소에서 요청한 성토사면 재해위험지구를 중심으로 현장조사를 시행하였다. 정밀 현장조사 결과의 분석을 통해 상토사면의 재해를 유발하는 현장 실태를 파악하고 위험성토사면에 대한 효율적인 대책방안을 제시하였다.

핵심용어: 성토사면; 사면 붕괴; 성토사면유지관리시스템; 절토사면유지관리시스템