Homework 1: a sample of rock has a total mass of 300 gm and a dry mass of 250 gm with a real specific weight of 2.77 and a degree of saturation of 80%. Find the following: Total volume, volume of sold particles, volume of voids, total density, dry density, void ratio, porosity, moisture content. |Ans: V=152.75 cm', v.-90.25 cm', V,-62.5 cm', y=1.964 gm/ cm. YF1. 64 gm/ cm', e-0.693, n-0.41, and o-0.2]

Q: A sample was obtained from point A in the submerged clay layer shown below. It was determined that…

A: A )  Given Data : w = 54 % Gs = 2.78  To Find : Effective vertical stress at A ? A problem of Soil…

Q: for all soil layers? where equivalent k(2 and 3) = 1.24 k1 and k4 = 4.41 k1 6. 10 8 A D K2 ~ K1 K4…

A:

Q: A natural deposit of soil was found to have a water content of 27% and to be 88% saturated. Gs=2.7.…

A: Given :- water content = 27%         Degree of saturation= 88%                         Gs= 2.7

Q: Calculate the surface area to volume ratio of a series of rocks having spherical grains of radii 1,…

A: Let's calculate this step-by-step:First, we need to understand what we're calculating:Surface area…

Q: Q-1: A soil profile consisting of three layers is shown in the following figure. a) Calculate the…

A: Given Data Determine  a. Calculate the value of σ, u, and σ' at point A, B, C and D.  b. Effective…

Q: The stresses induced by a surface load on a loose horizontal sand (ɸ = 30o) layer were found to be…

A: Normal stress about horizontal axis, Shear stress about horizontal axis, Normal stress about…

Q: A large piece of dry rock has a mass of 2450 kg and volume of 0.925 m³. The specific gravity of the…

A:

Q: provide solution and also the table

A: RockSedimentsPoreVolume,mm3Porosity, %Side, mmVolume,mm3Radius, mmVolume,mm3No. ofsediments…

Q: A soil specimen has a volume of 0.05 m³ and a mass of 87.5 kg. Given: w=15%, G,= 2.68. Determine a.…

A: It is asked to find void ratio.

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.