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A Case Study about the Slope Collapse and Reinforcement Method on the Infinite Slope  

You Byung-Ok (한국도로공사 도로교통기술원)
Hong Jung-Pyo (한국도로공사 익산-장수 건설사업소)
Jun Jong-Hern (두산중공업)
Lee Tae-Sun (대원토질)
Min Kyoung-Nam (대원토질 엔지니어링사업본부)
Publication Information
Tunnel and Underground Space / v.16, no.2, 2006 , pp. 146-155 More about this Journal
Abstract
The target slope of this study, formed during the construction of highway, is the very high infinite slope where sliding began along the discontinuity. Although an attempt was made to stabilize the upper part of the slope by installing the rock anchors, large scale failure was occurred at the lower part if the reinforced area. Afterwards, subsequent failures were observed two times. To investigate the cause of the failure, residual shear strength was measured by performing the direct shear test of rock specimen of the site. The anchor design was based on the pull-out test. Considering the slope surface where the undulation was severe and the variation of strength was very large, buttressing was used to obtain the required anchoring capacity.
Keywords
infinite slope; rock anchor; anchor pull-out test; buttress;
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