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http://dx.doi.org/10.14481/jkges.2017.18.2.5

A Case Study on the Top-Down Methods Performed in the Excavation Works of Domestic Downtown  

Chung, Jeeseung (Department of Railroad Construction & Safety Engineering, Dongyang University)
Park, Sukk (Department of Construction Engineering, Dongyang University)
Publication Information
Journal of the Korean GEO-environmental Society / v.18, no.2, 2017 , pp. 5-19 More about this Journal
Abstract
Underground excavation for building construction in Korea is changing from conventional support method (Strut, Ground anchor) to inside permanent support method by stability, economic, circumstances around excavation and etc. This study was selected the sites of Top-down, New Top-down, S.P.S, S.T.D and B.R.D in general use. This study was compared and analyzed a construction cost and period between aforementioned methods and conventional support method. Also, this study was confirmed the stability of temporary retaining wall by analysis for measurement data under construction. As a result, this study can grasp that most improved permanent support method is excellent in economic and constructability than conventional support method in case of deep excavation and rapid appearance of bedrock.
Keywords
Underground excavation; Permanent support system; Top-Down methods;
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  • Reference
1 새길이엔시 (2005년-2010년), "00신축공사 계측관리 보고서", pp. 경사계, 수위계계측값, 새길이엔시.
2 한국지반공학회 (2006), "굴착 및 흙막이 공법", 구미서관, 서울, pp. 253.
3 Choi, D. (2012), "Top-down construction method utilizing STD (Strut Top Down)", The Korean Structural Engineers Association Journal, Vol. 19, No. 2 (Mar/Apr) (in Korean).
4 Lee, J. and Jung, G. (2006), "A Case Study on the Application and History of Improved Method Top-Down Support by the Building Structure", Hong Wonpyo, KAPE (The Korean Association for Professional Engineer Soil Mechanics Foundation) Technical Presentations (in Korean).
5 Park, C., Moon, S. and Yoon, S. (2008), "A Study on the Subelements of the Top-down Construction Method Selection Model using Weighting Factor in Downtown Area", Journal of The Korea Institute of Building Construction, Vol. 8, No. 4 (Aug) (in Korean).