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Stability of the Innovative Prestressed wale System Applied in Urban Excavation  

Kim, Nak-Kyung (성균관대학교 토목환경공학과)
Park, Jong-Sik (성균관대학교 토목환경공학과)
Jang, Ho-Joon (성균관대학교 토목환경공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.9, no.2, 2005 , pp. 225-235 More about this Journal
Abstract
The stability of innovative prestressed wale system applied in urban excavation was investigated. The IPS is a wale system prestressed by tension of steel wires. The IPS consists of steel wires, H-beam support and wale. The IPS provides a high flexural stiffness to resist the bending moment caused by earth pressures. And the IPS transmits earth pressures due to excavation to corner struts. The IPS provides a larger spacing of support, economical benefit, construction easiness, good performance and safety control. This paper explains basic concept and mechanism of the IPS and presents the measured performances of the IPS applied in urban excavation. In order to investigate applicability and stability of the IPS in urban excavation, observations and measurements in site were performed. The IPS applied in urban excavation was performed successfully. The results of the field instrumentation were presented. The measured performances of the IPS were investigated. And behavior of the wall and corner struts was investigated.
Keywords
IPS; Excavation; Wall; Corner strut; Stability;
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