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Metadata Files

Data Publication

Research data on Verification of Unified Yield Surface SFG Model Considering Temperature Influence

LIU, Xiaowen | WU, Zeming | luo, hailin

4TU.ResearchData

(2023)

Descriptions

In landfill foundation treatment, high-level radioactive waste disposal, geothermal resources development and utilization and other engineering construction practice, there is a large amount of unsaturated soil. When unsaturated soil is affected by sunlight, geothermal, nuclear waste, biochemical reaction and other thermal radiation, it will accelerate the settlement and deformation of soil temperature. The building structure based on unsaturated soil will also be affected, so it is of great significance to study the influence of temperature on the stress and deformation of unsaturated soil. In this paper, by extending the SFG model of unified yield surface to consider the influence of temperature change on unified yield surface, a yield surface constitutive model which can reflect temperature-suction-stress at the same time is proposed.In order to verify the applicability of the model, triaxial tests on Jiangxi laterite at different temperatures are carried out to determine the parameters needed for model calculation. The model fitting results are obtained by using the test parameters and compared with the test results. With reference to the experimental data of remolded clay used in the literature by Uchaipichat et al, the model was fitted and analyzed. The results show that the unified yield surface SFG model considering the effect of temperature can better reflect the stress-strain characteristics of soil during compression rebound, dehumidification and shear, and verify the reliability of the constitutive model to reflect the stress-strain characteristics of soil at different temperatures, thus further enriching the constitutive theory of unsaturated soil under the influence of temperature.

Keywords

Originally assigned keywords

Engineering

Civil Engineering

FOS: Civil engineering

unsaturated soil

uniform yield surface

temperature effect

constitutive model

switching flow-graph (SFG)

Corresponding MSL vocabulary keywords

civil engineered setting

MSL enriched keywords

civil engineered setting

minerals

silicate minerals

phyllosilicates

clay

unconsolidated sediment

clastic sediment

clay

Apparatus

deformation testing

compression testing

triaxial compression apparatus

Measured property

strain

temperature change

Measured property

strain

measured property

aluminium

subsurface energy production

geothermal energy extraction

MSL enriched sub domains i

rock and melt physics

analogue modelling of geologic processes

geochemistry

Source

https://data.4tu.nl/datasets/d0a048ba-d1dd-4174-b6db-e0feb942f065/1

Source publisher

4TU.ResearchData

DOI

10.4121/d0a048ba-d1dd-4174-b6db-e0feb942f065.v1

Creators

LIU, Xiaowen

WU, Zeming

luo, hailin

Contributors

School Of Civil Engineering And Architecture Nanchang University

Other

References

10.11779/cjge201508013

Citation

LIU, X., WU, Z., & luo, hailin. (2023). Research data on Verification of Unified Yield Surface SFG Model Considering Temperature Influence (Version 1) [Data set]. 4TU.ResearchData. https://doi.org/10.4121/D0A048BA-D1DD-4174-B6DB-E0FEB942F065.V1

Dates

Issued:

2023-04-11

Language

Funding References

Funder name: xiaowen Liu

Award number: (No.51268046)

Award title: National Natural Science Foundation of China

Funder name: Xiaowen Liu

Award number: (No.52169026)