Numerical methods provide a new way for solving complex geotechnical engineering problems. Firstly, we review the emergence and development of numerical methods, introduce basic principles particle flow discrete element its application in engineering. After that, method servo combination cylinder loading plate is used, simulation three-dimensional rock triaxial unloading test carried out by PFC...

To study the mechanical and energy evolution characteristics of sandstone under true triaxial cyclic loading, a test with different intermediate principal stress loading was conducted using rock disturbance unloading system. The influence axial load on deformation, evolution, macroscopic failure in systematically analyzed, damage law revealed. Results showed that mode compression changed from t...

The laboratory tests for measuring the effects of small strain to the shear strength and maximum stiffness development of post-cyclic degradation of hemic peat are reviewed in this paper. A series of laboratory testing has been conducted to fulfil the objective of this research to study the post-cyclic behaviour of peat soil and focuses on the small strain characteristics. For this purpose, a n...

Liquefaction susceptibility of river channel deposit in Kolkata city is studied using laboratory cyclic triaxial tests. River deposit, which supports a large part rapidly growing urbanization city, mainly consists sandy soil with little amount silt. Cyclic tests have been performed on this sample varying relative density, confining pressure, and strain amplitude. Results are presented to show h...

This paper proposes a framework for the constitutive model based on the semi-micromechanical aspects of plasticity, including damage progress for simulating behavior of concrete under multiaxial loading. This model is aimed to be used in plastic and fracture analysis of both regular and reinforced concrete structures, for the framework of sample plane crack approach. This model uses multilamina...