Mobilizable Strength Design for Multibench Retained Excavation

Mobilizable Strength Design for Multibench Retained Excavation

Multibench retaining systems can be used in large area excavations for the purpose of eliminating horizontal struts. However, there is no design method for this retaining system. Based on the mobilizable strength design (MSD) concept, a design procedure for a two-bench retaining system considering t...

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Main Authors: Gang Zheng, Fanjun Wang, Dong-qing Nie, Yu Diao, Danyao Yu, Xuesong Cheng
Format: Article
Language:English
Published: Hindawi Limited 2018-01-01
Series:Mathematical Problems in Engineering
Online Access:http://dx.doi.org/10.1155/2018/8402601
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spelling doaj-b0d59cfd86bb4f46829199134d031cb82020-11-24T22:49:02ZengHindawi LimitedMathematical Problems in Engineering1024-123X1563-51472018-01-01201810.1155/2018/84026018402601Mobilizable Strength Design for Multibench Retained ExcavationGang Zheng0Fanjun Wang1Dong-qing Nie2Yu Diao3Danyao Yu4Xuesong Cheng5MOE Key Laboratory of Coast Civil Structure Safety, Tianjin University, 92 Weijin Rd., Nankai District, Tianjin 300072, ChinaDepartment of Civil Engineering, Tianjin University, 92 Weijin Rd., Nankai District, Tianjin 300072, ChinaDesign Institute 4, Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., 901 Zhongshan Rd. (North 2), Yangpu District, Shanghai 200092, ChinaMOE Key Laboratory of Coast Civil Structure Safety, Tianjin University, 92 Weijin Rd., Nankai District, Tianjin 300072, ChinaDepartment of Civil Engineering, Tianjin University, 92 Weijin Rd., Nankai District, Tianjin 300072, ChinaMOE Key Laboratory of Coast Civil Structure Safety, Tianjin University, 92 Weijin Rd., Nankai District, Tianjin 300072, ChinaMultibench retaining systems can be used in large area excavations for the purpose of eliminating horizontal struts. However, there is no design method for this retaining system. Based on the mobilizable strength design (MSD) concept, a design procedure for a two-bench retaining system considering the interaction of the first and second retaining structures was proposed and tested. Based on an admissible strain field for a two-bench retained excavation in undrained condition, the shear strain in the superimposed strain and the lateral earth pressure distribution acting on the retaining structures can be determined. Then, the mobilized shear strength corresponding to the strain field could be calculated by the equations of force and moment equilibrium. Further, the crest displacements, earth pressures, and bending moment in a two-bench retained excavation can be calculated. The calculated results using MSD were verified by the finite difference analysis.http://dx.doi.org/10.1155/2018/8402601
collection DOAJ
language English
format Article
sources DOAJ
author Gang Zheng
Fanjun Wang
Dong-qing Nie
Yu Diao
Danyao Yu
Xuesong Cheng
spellingShingle Gang Zheng
Fanjun Wang
Dong-qing Nie
Yu Diao
Danyao Yu
Xuesong Cheng
Mobilizable Strength Design for Multibench Retained Excavation
Mathematical Problems in Engineering
author_facet Gang Zheng
Fanjun Wang
Dong-qing Nie
Yu Diao
Danyao Yu
Xuesong Cheng
author_sort Gang Zheng
title Mobilizable Strength Design for Multibench Retained Excavation
title_short Mobilizable Strength Design for Multibench Retained Excavation
title_full Mobilizable Strength Design for Multibench Retained Excavation
title_fullStr Mobilizable Strength Design for Multibench Retained Excavation
title_full_unstemmed Mobilizable Strength Design for Multibench Retained Excavation
title_sort mobilizable strength design for multibench retained excavation
publisher Hindawi Limited
series Mathematical Problems in Engineering
issn 1024-123X
1563-5147
publishDate 2018-01-01
description Multibench retaining systems can be used in large area excavations for the purpose of eliminating horizontal struts. However, there is no design method for this retaining system. Based on the mobilizable strength design (MSD) concept, a design procedure for a two-bench retaining system considering the interaction of the first and second retaining structures was proposed and tested. Based on an admissible strain field for a two-bench retained excavation in undrained condition, the shear strain in the superimposed strain and the lateral earth pressure distribution acting on the retaining structures can be determined. Then, the mobilized shear strength corresponding to the strain field could be calculated by the equations of force and moment equilibrium. Further, the crest displacements, earth pressures, and bending moment in a two-bench retained excavation can be calculated. The calculated results using MSD were verified by the finite difference analysis.
url http://dx.doi.org/10.1155/2018/8402601
work_keys_str_mv AT gangzheng mobilizablestrengthdesignformultibenchretainedexcavation
AT fanjunwang mobilizablestrengthdesignformultibenchretainedexcavation
AT dongqingnie mobilizablestrengthdesignformultibenchretainedexcavation
AT yudiao mobilizablestrengthdesignformultibenchretainedexcavation
AT danyaoyu mobilizablestrengthdesignformultibenchretainedexcavation
AT xuesongcheng mobilizablestrengthdesignformultibenchretainedexcavation
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