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Title: Estimation of strut forces for braced excavation in granular soils from numerical analysis and case histories
Authors: Goh, Anthony Teck Chee
Zhang, Runhong
Zhang, Wengang
Hou, Zhongjie
Keywords: Apparent Pressure Diagram
Braced Excavation
Engineering::Civil engineering
Issue Date: 2019
Source: Zhang, W., Hou, Z., Goh, A. T. C., & Zhang, R. (2019). Estimation of strut forces for braced excavation in granular soils from numerical analysis and case histories. Computers and Geotechnics, 106, 286-295. doi:10.1016/j.compgeo.2018.11.006
Journal: Computers and Geotechnics
Abstract: Construction work of many projects in urban areas requires deep braced excavations, under which circumstances, appropriate design method to assure both the safety and economy of the retaining walls and supporting systems is therefore of paramount importance. For multi-propped retaining walls, Apparent Pressure Diagram (APD) method developed by Peck (1969) is commonly adopted to determine the forces acting on the struts. Unfortunately, most previous studies focused on the performance of braced excavations in soft to stiff clays, where limited publications involve braced excavations in dense sand and gravel with medium rigid walls. In this study, both 2D and 3D finite element analyses were carried out to examine the strut forces for braced excavations in granular soils. Subsequently, based on the numerical results as well as the field measurements from a number of reported case histories, empirical charts have been proposed to determine strut loads for deep excavations in granular soils with medium rigid walls.
ISSN: 0266-352X
DOI: 10.1016/j.compgeo.2018.11.006
Schools: School of Civil and Environmental Engineering 
Rights: © 2018 Elsevier Ltd. All rights reserved. This paper was published in Computers and Geotechnics and is made available with permission of Elsevier Ltd.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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