Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Improvement of Construction and Economic Capacity by Using the Existing Underground Exterior Wall in Underground Construction of Building

건물 지하공사에서 기존 외벽을 활용함에 따른 시공성 및 경제성의 향상

  • Received : 2020.10.19
  • Accepted : 2021.01.07
  • Published : 2021.01.30
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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.

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References

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