Saturday, 13 January 2024

Unsaturated Shear Strength Assessment Based on Soil Index Properties | Chapter 5 | Theory and Applications of Engineering Research Vol. 2

 The clip strength is a fundamental property of soil material. The calculation of the shear strength of unsaturated soils is disputing. Several tests are essential to establish the strength difference with matric suction, and a very long time is required to achieve the matric physical resistance equilibrium in examples before testing. Predictive models can judge the unsaturated shear strength of lifting soil. The research aims to develop models to determine the clip strength limits of partly saturated soils. These contain the angle of increase in shear strength accompanying variation in matric suction (∅b), angle of within friction had connection with net normal stress (∅'), and effective union (c'). Soil properties were evaluated through atom size distribution, particular gravity, regularity limits, swelling test, modified Supervisor compaction test, suction test, and advanced triaxial experiment. Regression analysis was acted using MINITAB 20 Operating system to develop predictive models. The confirmation process includes the p-value, decision coefficient, comparing forecasted with experimental principles, and comparing added models in literature with models grown in this study. The engineered models can estimate the clip strength characteristics of compressed, unsaturated soils with satisfactory precision.

Author(s) Details:

Armand Augustin Fondjo,
Department of Civil Engineering, Faculty of Engineering, Built Environment & Information Technology, Central University of Technology, Free State, South Africa.

Elizabeth Theron,
Department of Civil Engineering, Faculty of Engineering, Built Environment & Information Technology, Central University of Technology, Free State, South Africa.

Richard P. Ray,
Structural and Geotechnical Engineering Department, Széchenyi István Egyetem University, 9026 Gyor, Egyetem Tér 1, Hungary.

Please see the link here: https://stm.bookpi.org/TAER-V2/article/view/12948

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