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The Deformation Behavior of Anchored Retention Walls in Cut Slope  

Song Young-Suk (Geological & Environmental Hazards Division, Korea Inst. Of Geoscience and Mineral Res.)
Lee Jae-Ho (Dept. of Civil & Environmental Engineering, Chung-Ang University)
Kim Tae-Hyung (Division of Civil & Environmental Engineering, Korea Maritime University)
Publication Information
The Journal of Engineering Geology / v.15, no.2, 2005 , pp. 155-168 More about this Journal
Abstract
The behavior of earth retention wall installed in a cut slope is different from the behavior of retention wall applied in an urban excavation. In order to establish the design method of anchored retention wall in the cut slope, the behavior of anchored retention wall needs to be investigated and checked in detail. In this study, the behavior of anchored retention wall was investigated by the instrumentation installed in the cut slope, where was stabilized by a row of piles in an apartment construction site. The horizontal displacement of anchored retention wall was larger than the displacement of slope soil behind the wall at the early stage of excavation. As the excavation depth became deeper, the horizontal displacement of slope soil was larger than the displacement of anchored retention wall. It means that the horizontal displacement of anchored retention wall due to excavation is restrained by soldier pile stiffness and jacking force of anchor at the early stage of excavation. lacking force of anchor was mainly influenced on the horizontal displacement of anchored retention wall. The displacements of anchored retention wall and slope soil were affected mainly by rainfall infiltrated from the ground surface. Meanwhile, the horizontal displacement of anchored retention wall with a sloped backside was about $2\~6$ times larger than the displacement of anchored retention wall with a horizontal backside of excavation.
Keywords
Anchored retention wall; Cut slope; Instrumentation; Horizontal displacement; Excavation; Rainfall.;
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