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|Title: ||Case Study of Deep Excavation in Existing Underground Structure of Three Story Basement and Diaphragm Wall|
|Authors: ||Kuo, C.J.|
|Issue Date: ||2019-01-03T03:38:09Z
|Publisher: ||Journal of Earth Engineering|
|Abstract: ||Abstract: In general, site size of an urban renovation case is small in Taipei. The difficulty of workability
is added by the influence of the old building foundation on the to-be-constructed building foundation. This paper
presents a renovation case of a building project, 12-story high with a 3-story underground basement covering area
of 583 m2 in Taipei. Perimeter of the planned site is about 80 m. The existing foundation and the diaphragm wall
are 14.2 m and 25 m in depth, respectively. In addition, the diaphragm wall thickness of this old building is 70 cm.
The new building foundation planned to set inside the existing diaphragm wall of the old building. New building
is planned to excavate down to 21.5 m, with drilled shafts H414 × 405 × 18 × 28 mm installed down to 34 m.
The new foundation had been constructed by incorporating with the old diaphragm wall, the new drilled shafts
and cylindrical soil improvement . In addition, combining the top-down and bottom-up construction procedures
was used by taking advantage of the B3 slab of to-be-constructed building to connect existing diagram wall and
the new installed drilled shafts to complete the building project.
|Appears in Collections:||[河海工程學系] 期刊論文|
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