Study on Duncan-Chang Model and Strain Hardening Index Theory of Soft Dredger Fill

Zhang Yan; Yang Aiwu; Zhou Jin

doi:10.3969/j.issn.1007-2993.2011.02.005

Volume 25 Issue 2

Jul. 2021

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Zhang Yan, Yang Aiwu, Zhou Jin. Study on Duncan-Chang Model and Strain Hardening Index Theory of Soft Dredger Fill[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2011, 25(2): 72-74,80. doi: 10.3969/j.issn.1007-2993.2011.02.005

Citation:

Zhang Yan, Yang Aiwu, Zhou Jin. Study on Duncan-Chang Model and Strain Hardening Index Theory of Soft Dredger Fill[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2011, 25(2): 72-74,80. doi: 10.3969/j.issn.1007-2993.2011.02.005

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Study on Duncan-Chang Model and Strain Hardening Index Theory of Soft Dredger Fill

doi: 10.3969/j.issn.1007-2993.2011.02.005

1. Department of civil engineering, Tianjin Institue of urban construction, Tianjin 300381, China;
2. Key laboratory engineering character and engineering environment of soft soil in Tianjin, Tianjin 300381, China

Received Date: 2011-02-21

Abstract

Abstract

Large-scale reclamation project is being conducted in Tianjin Binhai New Area. For plentiful fine grain in dredger fill and uncompleted consolidation,the settlement after construction needs to be solved immediately.In thise paper, triaxial tests were performed on the remoulded samples of the soft dredger fill.Based on the analysis of the stress-strain curves derieved from the tests,duncan-chang model and strain hardening theory were compared.The results showed distinctive characteristies of both models:Duncan-Chang model can predict stress-strain curve accurately at the initial and last stage,but strain hardening theory may reflect strain hardening ability for remoulded dredger fill.
- soft dredger fill,
- Duncan-Chang model,
- strain hardening,
- triaxial test