| Title: | PRACTICE OF '2 IN 1' TECHNOLOGY IN DESIGN AND CONSTRUCTION OF DEEPLY EXCAVATED FOUNDATION FOR HIGH-RISE BUILDINGS |
| DOI No: | 10.1142/9789812701480_0045 |
| Source: | TALL BUILDINGS (pp 286-290)
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| Author(s): | SHIMING CHEN
Corresponding author.
School of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
XIAOMING XU
Shanghai Modern Architectural Design (Group) Co. Ltd., Shanghai 200041, China
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| Abstract: | In the soft soil ground area, the underground continual walls (or underground concrete diaphragm slurry walls) together with the temporarily horizontal-shoring systems are found effective in deep excavation for high-rise buildings. The temporary shoring will be demolished at the consequent stage when the structures of the underground basement are formed, and in most cases, the underground continual walls remain underground, enclosed with the walls of basement inside. The creative idea of "2 in 1" technology refers to the integration of underground continual walls and the external walls of basement in deep foundation design. The technology has been proved to be effective in control of deformation and settlement of soils during the construction of foundation, and having very light influences on the environmental surroundings. The shoring system could be used as permanent structural skeletons for the basement structures if it is well designed, and the underground continual walls also act as the external walls of basement for buildings, so that construction cost can be reduced. In the paper, the art and key procedures of the technology are assessed and the application of the technology in Phase 2 Project of Shanghai City Hotel is summarized. |
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