E3S Web Conf.
Volume 198, 20202020 10th Chinese Geosynthetics Conference & International Symposium on Civil Engineering and Geosynthetics (ISCEG 2020)
|Number of page(s)||3|
|Section||Structural Engineering Monitoring, Control, Repair and Reinforcement|
|Published online||26 October 2020|
Comparative study on the results of different tensile test methods of artificial frozen soil
1 CCCC-Tianjin Port Engineering Institute, Ltd., 300222 Tianjin, China
2 CCCC First Harbor Engineering Company, Ltd., 300461 Tianjin, China
3 Key Laboratory of Geotechnical Engineering, Ministry of Communications, 300222 Tianjin, China
4 Key Laboratory of Geotechnical Engineering of Tianjin, 300222 Tianjin, China
5 Tianjin Survey and Design Institute For Water Transport Engineering, 300000 Tianjin, China
Tensile strength of frozen soil is an important index for frozen soil engineering design. It is found that uniaxial tensile strength, three-point bending and four-point bending tensile strength values of frozen soil are inconsistent in the test. For this reason, the meso-level numerical method is adopted, assuming that the meso-level material parameters conform to Weibull distribution, and the damage model is adopted, and the macro-level material properties conform to linear elasticity assumption. Uniaxial tensile test, three-point bending tensile test and four-point bending tensile test are respectively simulated. The results show that the difference comes from the non-uniformity of materials. The results of this paper provide effective guidance for frozen soil strength design.
© The Authors, published by EDP Sciences 2020
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