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http://dx.doi.org/10.9720/kseg.2011.21.3.221

A Case Study of Road Upheaval caused by Slope Movement, and Verification of Reinforcement using Real-Time Monitoring  

Lee, Jong-Hyun (Geotechnical Engineering & Tunnelling Research Division, Korea Institute of Construction and Technology)
Koo, Ho-Bon (Geotechnical Engineering & Tunnelling Research Division, Korea Institute of Construction and Technology)
Kim, Seung-Hyun (Geotechnical Engineering & Tunnelling Research Division, Korea Institute of Construction and Technology)
Kim, Seung-Hee (Department of Civil & Environmental Engineering, Georgia Institute of Technology)
Publication Information
The Journal of Engineering Geology / v.21, no.3, 2011 , pp. 221-230 More about this Journal
Abstract
The movement of rock cut slopes may result in upheaval of an adjacent road. Because most cut slopes consist of rock, road upheaval due to the movement of a cut slope is a rare phenomenon in Korea. We found that the movement of rock slopes which are heavily weathered and with strongly developed weak zones is governed by circular failure of the overall rock formation rather than by failure along discontinuities. The results of a numerical analysis revealed that the application of a ubiquitous joint model in a continuum analysis is appropriate for anisotropic rocks (e.g., schist) and for slopes for which the stability is influenced by a particular discontinuity. The results of a field investigation and numerical analyses suggest that retaining walls and anchors should be used to stabilize rock slopes and that real-time monitoring equipment should be installed to assess the reinforcing effect of the remedial measures.
Keywords
Road upheaval; Circular failure; Numerical analysis; Ubiquitous joint model; Real-time monitoring;
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