Title Improvement of Construction and Economic Capacity by Using the Existing Underground Exterior Wall in Underground Construction of Building
Authors 황판용(Hwang, Pan-Yong) ; 이병희(Lee, Byeong- Hee) ; 서수연(Seo, Soo-Yeon)
DOI https://doi.org/10.5659/JAIK.2021.37.1.201
Page pp.201-209
ISSN 2733-6247
Keywords Parallel demolition reverse casting method; existing underground external wall; steel plate; workability; demolition and reconstruction; temporary strut method
Abstract In this study, a parallel demolition reverse casting method (PW method) was proposed that utilizes the existing underground external wall without removing it. In this method, the inside of the existing underground outer wall is reinforced with a steel plate and used as an earthen wall during underground construction. After installing an additional steel plate inside the reinforced wall, concrete are filled inside the reinforced wall to be used as the outer wall of the basement of a new structure. In order to evaluate the workability of the proposed construction method, the proposed method was applied to an actual site and compared with the method of demolition and reconstruction of existing underground outer walls and structures. As a result of the study, it was found that the proposed method shortens the construction period by 25.84% and the construction cost by 30.04% compared to the temporary strut method after demolition.