A stratified soil deposit consists of four layers of equal thickness. The coefficient of permeabilit 1 1 3 2 of the second, third and fourth layers are respectively permeability of top layer. The average permeabilities of the deposit in parallel and perpendicula direction respectively, are and twice of the coefficient

Q: A saturated soil specimen has w = 36% and ᵞd = 85.43 lb/ft3. Determine: Void ratio

A: Given: Water content, w = 36% = 0.36 Dry unit weight = 85.43 lb/ft3 Degree of saturation, S = 100% =…

Q: A simple of dry sand is subjected to a triaxial test. During the test if deviator stress and cell…

A:

Q: Assume that the compressible soil shown in Figure 1 consists of a clay layer 10 ft thick. A…

A: Initial void ratio (eo) = 1.10Saturated Densityνsat =  115 lb/ft2Existing over burden pressure(po) =…

Q: Question Attached

A: Principal Stress shows the maximum normal stress principal stresses are the maximum and minimum…

Q: The effective internal friction angle of a normal compacted clay is 33°, the triaxial test of this…

A: Given a clay specimen in which triaxial test is performed, it required to calculate water pressure…

Q: A horizontal stratified soil deposit consists of three uniform layers whose thicknesses are 6, 3, 12…

A: K1 = 4 X 10-4 mm/sK2 = 25 X 10-4 mm/sK1 = 7.5 X 10-4 mm/sTo Find :The effective average permability…

Q: If the coefficient of uniformity of a soil sample is close to 10, the soil’s gradation can be…

A: The coeff of uniformity  is given by Cu=D60D10 It is unity for the uniformly graded soil So the…

Q: A stratum of soil consists of three layers of equal thickness. The permeability of top and bottom…

A: Permeability at Top = 10-4 cm/s Permeability at bottom = 10-4 cm/s Permeability at middle layer =…

Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.