A dam of 21.5 m height and has free board of 1.5 m. A flow net is constructed containing following results were Number of potential drops = 12 Number of flow lines = 4 The dam has a horizontal filter of length 15 m. The coefficient of permeability of the dam material is 2.7 x 10-6 m/sec. The discharge per meter length (in m³/s) is

Q: 15m length concrete dam with water level 5 meter at the upper level and 1m at lower level three…

A: Here for lowest flow line , Keq=K3= 1 x 10^-6 m/s

Q: In confined or unconfined aquifers water levels in wells are above the top of the aquifer?

A: The confined aquifers are the aquifers which have saturated water and that are below the ground…

Q: 6. Determine the hydraulic conductivity of a clay soil if the absolute permeability K = 0.4642 *…

A:

Q: In laminar flow, which is correct? BJ: higher Re value has higher friction factor JB: lower Re value…

A: A multiple choice question is given and it has been asked to choose correct option. It can be easily…

Q: An open ended steel barrel of 1 m height and 1 m diameter is filled with saturated fine sand having…

A: An open-ended steel barrel- Height = 1 m, & Diameter d = 1 m, Drop in the water level h = 0.75 m…

Q: Losses from lake A (left) feed lake B (right). The distance between them is 3.5 km. The water level…

A: The problem is about calculating the rate of flow in the pore between two lakes. The water level…

Q: Question 8 Find the flow rate in m'/sec/m length (at right angles to the cross section shown)…

A: To determine the flow rate through the permeable soil layer.   Given, Hydraulic conductivity of the…

Q: Two points exist under the water’s surface within a reservoir. Point A is at a depth of 155.2’,…

A: Applying Bernoulli's equation between two points: PAγ+vA22g+zA=PBγ+vB22g+zBwhere,γ=62.4 lbft3g=32.2…

Q: Seepage velocity is: a Equal to Darcy velocity b Greater than Darcy velocity c Smaller than Darcy…

A:

Q: Answer the ff: a) The ratio of horizontal to the vertical permeability is b) The ratio of vertical…

A: To find horizontal and vertical permeability

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.