Flexible Temporary Shield in Soft and Sensitive Clay: 3D FE Modelling of Experimental Field Test
A finite-element (FE) numerical study using PLAXIS-3D software was carried out to reproduce and validate a full-scale experimental in situ test and to investigate the earth pressure on a flexible temporary trench box shield in soft and sensitive clay soil. The excavation trench model was 6 m (20 ft)...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Modelling and Simulation in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6626750 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832547054268710912 |
|---|---|
| author | Miah Alam Omar Chaallal Bertrand Galy |
| author_facet | Miah Alam Omar Chaallal Bertrand Galy |
| author_sort | Miah Alam |
| collection | DOAJ |
| description | A finite-element (FE) numerical study using PLAXIS-3D software was carried out to reproduce and validate a full-scale experimental in situ test and to investigate the earth pressure on a flexible temporary trench box shield in soft and sensitive clay soil. The excavation trench model was 6 m (20 ft) deep and was considered as nonlinear and anisotropic clay. A 45 kPa (0.94 ksf) surface overload on top of the soil near the trench box was also simulated to produce a maximum load case on the flexible wall of the shield. Both Mohr-Coulomb (MC) and hardening soil (HS) constitutive soil models were considered for FE analysis. Different values of the modulus reduction factor (MRF) and the coefficient of earth pressure at rest (K0) were considered to validate the model. For a specific shear strength profile, FE analysis with a linear elastoplastic soil model showed relatively small differences in soil pressure with the field test results along the depth of the trench. Results were also compared with the predictions of well-established analytical formulae. |
| format | Article |
| id | doaj-art-f8b2f1046f5444d9adb910a4807cb0cd |
| institution | Kabale University |
| issn | 1687-5591 1687-5605 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Modelling and Simulation in Engineering |
| spelling | doaj-art-f8b2f1046f5444d9adb910a4807cb0cd2025-02-03T06:46:16ZengWileyModelling and Simulation in Engineering1687-55911687-56052021-01-01202110.1155/2021/66267506626750Flexible Temporary Shield in Soft and Sensitive Clay: 3D FE Modelling of Experimental Field TestMiah Alam0Omar Chaallal1Bertrand Galy2Department of Construction Engineering, Université de Québec, École de Technologie Supérieure, Montreal, QC, H3C 1K3, CanadaDepartment of Construction Engineering, Université de Québec, École de Technologie Supérieure, Montreal, QC, H3C 1K3, CanadaDepartment of Research, Québec Occupational Health and Safety Research Institute (IRSST), 505 de Maisonneuve Blvd., West, Montreal, H3A 3C2, CanadaA finite-element (FE) numerical study using PLAXIS-3D software was carried out to reproduce and validate a full-scale experimental in situ test and to investigate the earth pressure on a flexible temporary trench box shield in soft and sensitive clay soil. The excavation trench model was 6 m (20 ft) deep and was considered as nonlinear and anisotropic clay. A 45 kPa (0.94 ksf) surface overload on top of the soil near the trench box was also simulated to produce a maximum load case on the flexible wall of the shield. Both Mohr-Coulomb (MC) and hardening soil (HS) constitutive soil models were considered for FE analysis. Different values of the modulus reduction factor (MRF) and the coefficient of earth pressure at rest (K0) were considered to validate the model. For a specific shear strength profile, FE analysis with a linear elastoplastic soil model showed relatively small differences in soil pressure with the field test results along the depth of the trench. Results were also compared with the predictions of well-established analytical formulae.http://dx.doi.org/10.1155/2021/6626750 |
| spellingShingle | Miah Alam Omar Chaallal Bertrand Galy Flexible Temporary Shield in Soft and Sensitive Clay: 3D FE Modelling of Experimental Field Test Modelling and Simulation in Engineering |
| title | Flexible Temporary Shield in Soft and Sensitive Clay: 3D FE Modelling of Experimental Field Test |
| title_full | Flexible Temporary Shield in Soft and Sensitive Clay: 3D FE Modelling of Experimental Field Test |
| title_fullStr | Flexible Temporary Shield in Soft and Sensitive Clay: 3D FE Modelling of Experimental Field Test |
| title_full_unstemmed | Flexible Temporary Shield in Soft and Sensitive Clay: 3D FE Modelling of Experimental Field Test |
| title_short | Flexible Temporary Shield in Soft and Sensitive Clay: 3D FE Modelling of Experimental Field Test |
| title_sort | flexible temporary shield in soft and sensitive clay 3d fe modelling of experimental field test |
| url | http://dx.doi.org/10.1155/2021/6626750 |
| work_keys_str_mv | AT miahalam flexibletemporaryshieldinsoftandsensitiveclay3dfemodellingofexperimentalfieldtest AT omarchaallal flexibletemporaryshieldinsoftandsensitiveclay3dfemodellingofexperimentalfieldtest AT bertrandgaly flexibletemporaryshieldinsoftandsensitiveclay3dfemodellingofexperimentalfieldtest |