Response of Partially Saturated Non-cohesive Soils

modeling of hydraulic fracture problem in partially saturated porous media using cohesive zone model

in this paper, a finite element model is developed for the fully hydro-mechanical analysis of hydraulic fracturing in partially saturated porous media. the model is derived from the framework of generalized biot theory. the fracture propagation is governed by a cohesive fracture model. the flow within the fracture zone is modeled by the lubrication equation. the displacement of solid phase, and...

Relation between swelling and erodibility of cohesive soils

Title Pile Aging in Cohesive Soils

This technical note presents the results of a field investigation into pile aging in soft clay which was conducted over a period of ten years. Static load tests were conducted after the excess pore pressure generated by the installation of 6 m long driven concrete piles were fully equalised. These tests allowed the time-capacity aging profile to be established. A normalised capacity-time trend ...

Shakedown of Cohesive-frictional Non-homogeneous Soils under Moving Surface Loads

ABSTRACT: In this paper, shakedown limits of non-homogeneous soils in a half-space under rolling and sliding surface loads are investigated. The inhomogeneity of the soil is described by a power law for the variation of Young’s modulus with the depth. Mohr-Coulomb criterion is employed to characterise the cohesive-frictional behaviour of the soil. Analytical solutions to the elastic stress fiel...

Measuring Erodibility of Cohesive Soils Using Laboratory Submerged Jet Test

Shigella flexneri causes a severe form of bacillary dysentery characterized by cramping, diarrhea, and fever. S. flexneri uses a type three seceretion system (TTSS) to invade the colonic epithelium by injecting effector proteins directly into the host cell cytoplasm. The TTSS consists of a basal body, spanning both the outer and inner membranes, and a surface exposed needle. After the proper en...