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Author:

Du, Dianchun (Du, Dianchun.) | Xu, Jingshu (Xu, Jingshu.) | Gong, Weiming (Gong, Weiming.) | Dias, Daniel (Dias, Daniel.)

Indexed by:

EI Scopus SCIE

Abstract:

The kinematic discretisation technique of upper bound limit analysis is adopted in this study to evaluate the limit load of a strip footing located on the soils reinforced with different geosynthetic layers. The reinforcement is assumed to withstand the tension but not bending moment. The failure model of the reinforced foundation soil is generated using the discretisation method, a 'point by point' technique. Two failure modes of the reinforcement, the tensile rupture and sliding, are considered in the analysis. This article proposed the formulas for the first time to evaluate the effect of soil friction angle phi on the ultimate bearing capacity and on the failure mechanism of foundation. The calculation results are given considering different reinforcement layers, which describe the impact of different reinforcement depth and length on the ultimate bearing capacity. The optimum positions of different reinforcement layers and the optimum reinforcement length are obtained. The bearing capacity ratios are also presented in figures combing impact of reinforcement depths, soil cohesion and friction angle. The present method was verified by the results reported in literature. The present method can provide a reference for the footing design on the reinforced soils.

Keyword:

kinematic bearing capacity discretisation technique reinforced soil Strip Foundation

Author Community:

  • [ 1 ] [Du, Dianchun]Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing, Peoples R China
  • [ 2 ] [Xu, Jingshu]Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing, Peoples R China
  • [ 3 ] [Xu, Jingshu]Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing, Peoples R China
  • [ 4 ] [Gong, Weiming]Southeast Univ, Sch Civil Engn, Nanjing, Peoples R China
  • [ 5 ] [Dias, Daniel]Grenoble Alpes Univ, CNRS, Lab 3SR, UMR 5521, Grenoble, France

Reprint Author's Address:

  • [Du, Dianchun]Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing, Peoples R China;;

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Source :

EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING

ISSN: 1964-8189

Year: 2024

Issue: 16

Volume: 28

Page: 3945-3964

2 . 1 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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