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Development of Innovative Prestressed Support Earth Retention System  

Kim, Nak-Kyung (Dept. of Civil Engrg., Sungkyunkwan Univ.)
Park, Jong-Sik (Dept. of Civil Engrg., Sungkyunkwan Univ)
Han, Man-Yop (Dept. of Civil Engrg., Ajou Univ)
Kim, Moon-Young (Dept. of Civil Engrg., Sungkyunkwan Univ)
Kim, Sung-Bo (Dept. of Civil Engrg., Chungbuk Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.20, no.2, 2004 , pp. 107-113 More about this Journal
Abstract
A new innovative prestressed support (IPS) earth retention system has been developed and introduced. The IPS is a wale system prestressed by steel wires. The IPS consists of wale, wires, and H-beam support. The IPS provides a high flexural stiffness to resist the bending by earth pressures. The IPS earth retention system provides a larger spacing of support, economical benefit, construction easiness, good performance, and safety control. This paper explains basic principles and mechanism of new IPS system and presents a design method of IPS earth retention system. In order to investigate applicability and safety of new IPS system, field tests were performed in a trench excavation. The new IPS system applied in a trench excavation was performed successfully. The measured performances of IPS system were presented and discussed.
Keywords
Earth pressure; Earth retention system; Excavation; Large excavation; Prestress;
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