Simulation for interaction between geogrids and soil by cohesive zone model

CHEN Rong; LI Bo; HAO Dong-xue; GAO Yu-cong

doi:10.11779/CJGE202005016

Volume 42 Issue 5

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Chinese Journal of Geotechnical Engineering > 2020 > 42(5): 934-940. > DOI: 10.11779/CJGE202005016

CHEN Rong, LI Bo, HAO Dong-xue, GAO Yu-cong. Simulation for interaction between geogrids and soil by cohesive zone model[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(5): 934-940. DOI: 10.11779/CJGE202005016

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Simulation for interaction between geogrids and soil by cohesive zone model

CHEN Rong^{1, 2,},
LI Bo^{1, 2},
HAO Dong-xue^{1, 2, ,},
GAO Yu-cong^{1, 2}

1.
School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, China
2.
Institute of Geotechnical Engineering, Northeast Electric Power University, Jilin 132012, China

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Received Date: August 15, 2019
Available Online: December 07, 2022

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Abstract

Abstract

The cohesive zone model is widely used in the fracture numerical simulation of bonded metal members. In order to deeply analyze the interaction between geogrids and soil, the cohesive zone model is adopted at the transverse ribs of geogrids and penalty function method is adopted at the longitudinal ribs to simulate the pullout tests of geogrids. The parameters of model can be obtained from the data of pullout tests on individual ribs. The results show that the cohesive zone model can perfectly simulate the passive resistance of transverse ribs, and the failure mode corresponds to the punching failure mode proposed by Jewell. The passive resistance of the transverse ribs accounts for about 71% of the whole pullout force. The simulated results have well verified the accuracy and feasibility of adopting the cohesive force model at the transverse ribs of the grid.
- geogrid,
- interaction,
- cohesive zone model,
- simulation

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