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http://dx.doi.org/10.7843/kgs.2012.28.8.89

Design Improvement of the Road Expansion on a Deep Thick Soft Ground  

Kim, Tae-Hyung (Department of Civil Engineering, Korea Maritime University)
Park, Tae-Young (Construction Office, Korea Expressway Corporation)
Kim, Sung-Ryul (Department of Civil Engineering, Dong-A University)
You, Sang-Ho (Samyoung Technology Corporation)
Kim, Kook-Han (Department of Civil Engineering, Korea Maritime University)
Kim, Yun-Tae (Department of Ocean Engineering, Pukyoung National University)
Publication Information
Journal of the Korean Geotechnical Society / v.28, no.8, 2012 , pp. 89-99 More about this Journal
Abstract
The expansion of a road on soft ground could induce an additional settlement to the existing road because of the consolidation characteristics of the soft soil layer subjected to additional load by an adjacent banking. In such case, the existing road could be faced with various problems during the stages of the construction and maintenance, such as deterioration of not only the surface smoothness yielding the decrease in automobile performance safety but also the structural stability of the embankment. These kinds of problems are expected to occur more freguently especially for the deep ground level with a fairly thick soft soil layer. Therefore, they should be examined and studied adequately during the design stage. As a reference case study, this paper deals with the project named Namhae Expressway of 2nd Branch with the soft soil layer with the thickness upto about 50m. After a lengthy review of the original design, an improved design is proposed.
Keywords
Deep thick soft ground; Road expansion; Construction; Maintenance; Existing road; Stability of the embankment;
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  • Reference
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