| 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 |
| 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. |