| 논문명 |
구조물 겸용 흙막이 스트러트 공법 / Development of Struts for Soil Shuttering as a Permanent System |
| 저자명 |
홍원기(Hong, Won-ki) ; 김선국(Kim, Sun-kuk) ; 김희철(Kim, Hee-Chul) |
| 발행사 |
한국건설관리학회 |
| 수록사항 |
한국건설관리학회 논문집, Vol.5 No.3 (2004-06) |
| 페이지 |
시작페이지(71) 총페이지(8) |
| ISSN |
1229-7534 |
| 주제분류 |
시공(적산) |
| 주제어 |
흙막이 ; 응력 불균형 ; SPS ; 가설용 스트러트//Soil shuttering ; Stress change ; Struts as Permanent System ; Temporary struts |
| 요약1 |
본 연구에서는 본 구조물 겸용 가설 스트러트(SPS: Strut as a Permanent System) 공법을 개발한 후 현장 사례시공을 통해 공기, 원가, 안전, 품질 등의 측면에서 제안한 공법의 효용성을 검증하는 것을 목적으로 한다. 즉, 제안된 공법의 활용은 가시설의 철거에 소요되는 시간적, 경제적 손실을 절감함은 물론 기초골조 완성과 동시에 지상·지하공사의 착공(up-up공법)을 가능케 한다. 또한, 철거 시 발생되는 응력 불균형에 따른 붕괴 위험성 및 이로 인한 주변 지반 변형에서 발생되는 시설안전 및 민원억제를 가능케 한다. |
| 요약2 |
In conventional method of supporting soil shuttering wall during excavation a system of struts and wales to provide cross-lot bracing is common in trench excavations and other excavations of limited width. This method, however, becomes difficult and costly to be adopted for large excavations since heavily braced structural systems are required. Another expensive and unsafe situations are expected when temporary struts must be removed for the construction of underground structures. This paper introduces innovative strut systems which can be used as permanent underground structures after its role as brace system to resist earth pressure during excavation phase. Underground structural system suggested from architect is checked against the soil lateral pressures before the analysis of stresses developed from gravity loads. In this technology, named SPS(Struts as Permanent System), retaining wall is installed first and excavation proceeds until the first level of bracing is reached. Braces used as struts during excavation will serve as permanent girders when buildings are in operation. Simultaneous construction of underground and superstructure can proceeds when excavation ends with the last level of braces being installed. In this paper, construction sequence and the calculation concept are explained in detail with some photo illustrations. SPS technology was applied to three selected buildings. One of them was completed and two others are being constructed. Many sensors were installed to monitor the behavior of retaining wall, braces as column in terms of stress change and displacement. Adjacent ground movement was also obtained. These projects demonstrate that SPS technology contributes to the speed as well as the economy involved in construction. |
| 소장처 |
한국건설관리학회 |