Analysis of Design Values of Swelling Force in Construction of Deep Foundation Pits

doi:10.3973.j/issn.1672-741X.2016.04.008

Tunnel Construction ›› 2016, Vol. 36 ›› Issue (4): 418-424.DOI: 10.3973.j/issn.1672-741X.2016.04.008

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Analysis of Design Values of Swelling Force in Construction of Deep Foundation Pits

XU Yajun

(China Railway Tunnel Survey & Design Institute Co., Ltd., Tianjin 300133, China)

Received:2015-12-07 Revised:2016-02-20 Online:2016-04-20 Published:2016-04-27

Abstract

Abstract:

The design values of swelling force in the construction of deep foundation pits have not been decided in China’s current technical specifications. In this paper, the comparison between design results of internal force of foundation pit of Phase 1 on Chengdu Metro Line No. 3 and site monitoring results is made in terms of different swelling force design values. The relationship between monitoring results and theoretical calculation results is studied. The study resalts can provide guidance for design values of swelling force in construction of deep foundation of similar projects in the future.

Key words: deep foundation pit, swelling soil/rock, swelling force, support axial forces, design value, measured value

CLC Number:

U 45

XU Yajun. Analysis of Design Values of Swelling Force in Construction of Deep Foundation Pits[J]. Tunnel Construction, 2016, 36(4): 418-424.

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Analysis of Design Values of Swelling Force in Construction of Deep Foundation Pits

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