Analysis of Braced Excavation with Pit-in-Pit Based on Orthogonal Experiment

Abstract:

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In order to study the supporting structure under different distances between inner pit-in-pit and foundation pit, width and depth of pit-in-pit and general excavation depth of external foundation pit, PLAXIS is adopted to simulate the whole process of pit-in-pit excavation in a foundation pit of Shanghai. The factors which influence wall deflection are analyzed using orthogonal experimental design software. The results show that the factors which influence deformation of pit-in-pit and supporting structure of foundation pit are sorted with range value or sensitivity descending: depth of pit-in-pit, location of pit-in-pit, general excavation depth of external foundation pit, and width of pit-in-pit. Depth and location of pit-in-pit are the most two significant factors, and they have the strongest interactions.

Info:

Periodical:

Edited by:

Dongye Sun, Wen-Pei Sung and Ran Chen

Pages:

4549-4553

DOI:

10.4028/www.scientific.net/AMM.71-78.4549

Citation:

T. P. Qian et al., "Analysis of Braced Excavation with Pit-in-Pit Based on Orthogonal Experiment", Applied Mechanics and Materials, Vols. 71-78, pp. 4549-4553, 2011

Online since:

July 2011

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$35.00

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