Determination of realistic rock strength of slope considering geological characteristics

사면의 지질특성을 고러한 암반강도 결정

This paper represents a case study to determine optimal rock properties and to analyse the safety of slopes excavated in faulted and severly weathered ground. The study site consists of two slopes with a length of 240m and a height of 30m in contact with a tunnel. Significant efforts have been exerted for determining the proper strength parameters such as cohesion and internal friction of rockmass by back analyses as well as laboratory and in-situ tests. Limit equilibrium analyses have also been conducted using these properties.