Design Scheme and Construction Technology of Combined Support for a Deep Foundation Pit Excavation

Mai Wu; Xin Zhao; Kai Liu; Chun Lei Wang; Hui Xuan Geng

doi:10.4028/www.scientific.net/AMM.353-356.819

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Model Test Research of Surcharge Contribution to Ground Bearing Capacity
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Design Scheme and Construction Technology of Combined Support for a Deep Foundation Pit Excavation
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 353-356Design Scheme and Construction Technology of...

Design Scheme and Construction Technology of Combined Support for a Deep Foundation Pit Excavation

Abstract:

A deep foundation pit project in Changsha City covers an area of about 63000m2, the largest excavation depth of the pit is 16.2 m, so it belongs to the deep and large foundation supporting engineering. By comprehensive analysis of the proposed construction site environment conditions and engineering geological conditions the different combined supporting schemes are adopted in different domains separately. In this paper the design schemes of the combined supporting technology are introduced. The problems encountered in the excavation construction process and the corresponding measures being taken are analyzed in detail. The results show that the design scheme is reasonable. Both horizontal displacement and settlement can meet specification and design requirements. At the same time the reasonable construction organization makes the support engineering be finished within the scheduled term, which saves the precious time for the following construction procedure. Furthermore it provides guidance for similar projects.

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Periodical:

Applied Mechanics and Materials (Volumes 353-356)

Pages:

819-822

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.353-356.819

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Online since:

August 2013

Authors:

Mai Wu, Xin Zhao, Kai Liu, Chun Lei Wang, Hui Xuan Geng

Keywords:

Combined Supporting, Construction Technology, Deep Foundation Pit, Design Scheme

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References

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