A permeable soil is underlain by an impervious layer. For the permeable layer, k=0.0052cm/s, H=4m, and inclination of 9.8:2 (H:V) a. Determine the hydraulic gradient.  b. Determine the flow of water per meter width (m^3/min)  c. Determine the total amount of water percolated per day per meter width (m^3)

Q: a) A confined stratified aquifer has a total thickness of 16 m and is made up of four layers. The…

A:

Q: We have 16 m  width of clay layer  with two sides of drainage.Clay layer consolidation  of floor…

A:

Q: Profile is shown in the figure A zone of capillary rise of 3.0m is on the sand layer overlaying…

A: Height of capillary zone = 3 m Degree of saturation of capillary zone (S) = 70%NOTE : As per…

Q: 7.9 Refer to Figure 7.29. Find the flow rate in m'/sec/m length (at right angles to the cross…

A:

Q: .In the given soil profile detemine the 6'of the points A,B.C and D. Show the v ariations in a…

A: Given data in question  Void ratios Depths of various soil layers Porosity Specific gravity  Water…

Q: For a sandy soil with G= 2.68, calculate the critical hydraulic gradient that will cause boiling or…

A: Given: Gs = 2.68, Sandy Soil Calculate: Critical hydraulic gradient=?

Q: 6.14 A 5-m-thick clay layer, drained at the top only, has some sand drains. A uniform surcharge is…

A:

Q: A horizontal impervious floor of length 20 m is provided with a cutoff of a 4 m depth at its…

A: Given: A horizontal impervious floor of length, b = 20 m cutoff, d = 4 m depth at its downstream…

Q: An artesian aquifer 25-m thick has a porosity of 17% and bulk modulus of compression 2400 kg/cm².…

A: Given-Kw= 2.14*104 kg/cm2Ks= 2400 kg/cm2b = 25 mn = 17%

Q: 1. Given the structure and the flow net detailed in Figure 1. The coefficient of permeability (i.e.…

A:

Q: H2 = 0.3’                      h = 1.25’  H1 = 0.2’                      d = 1.5”  H = 0.5’…

A:

Q: The diagram of a sand drain is shown in Figures 16.21 and 16.22. Given: rw = 0.25 m, rs = 0.35 m, de…

A: Solution: a) Calculate degree of consolidation of sand drains using formula; Tv=π4Uv1002Here, Tv=…

Q: A permeable soil is underlain by an impervious layer. For the permeable layer, k=0.0052cm/s, H=4m,…

A: Determine  a. Hydraulic gradient (i).  b. Flow of water per meter width (Q).  c. The total amount of…

Q: Concrete dam H₂ H₂ Sandy layer Impervious rock L Figure 7.30 Given: upstream water level, H₂ = 16 m;…

A:

Q: If H₁ = 3ft, H₂= 3.4ft, h = 2.43ft, Ysat-118.80lb/ft3, area of the tank = 8.91ft², and hydraulic…

A: Seepage force can be defined as the force exerted by seepage water on the soil through which it…

Q: The total volume of a soil specimen is 80,000 mm3 and it weighs 150 grams. The dry weight of the…

A: Given Data Density of soil specimen=2680 kg/m3 Density of water=1000 kg/m3 We have to find specific…

Q: O A 1.25 m layer of soil (n = 0.35; G = 2.65) is subjected to an upward seepage head of 1.85 m. What…

A: Depth of soil layer (h) = 1.25 m G = 2.65 Porosity = 35% = 0.35 Void ratio (e) = Porosity/ (…

Q: Q-2: Find the rate of flow in m³/sec/m (at right angles to the cross section shown in the following…

A:

Q: A dam shown in Figure Q1 (c) retains 6m of water. A sheet pile wall on the upstream side (which is…

A:

Q: 1. (30 pts) The soil profile shown below consists of 10 meters of sandy silt overlying gravel. The…

A: Step 1:Step 2: Step 3: Step 4:

Q: up to a depth of 13 ft from the ground and below which lies sand. The clay  stratum is saturated…

A: Given:- depth=6.5ft w=30 percent Gs=2.72 Sandy stratum,w=26 percent Gs=2.64 To find;- total pressure…

Q: Question attached

A: Given: The dry unit weight of soil is 112 pcf. The specific gravity of soil is 2.63. The…

Q: A permeable soil is underlain by an impervious layer. For the permeable layer, k=0.0052cm/s, H=4m,…

A:

Q: Q.5) The section through a long cofferdam is shown below, the coefficient of permeability of the…

A: Coefficient of permeability= K = 6* 10-8 m/sec H = 5.5m We have to find out the quantity of seepage…

Q: 4. Which of the following nearly gives the transmissibility of the soil when the water table is at…

A:

Q: A 6 m depth of sand layer has a dry unit weight of 14.9 kN/m' and satura weight of 18.1 kN/m³…

A: Gs = 2.7Cv = 4.3 m2/yr = 100 kPaNOTE : As per guidelines, 3 parts are solved. Request you to post…

Q: For the given soil profile, compute the effective pressure at a depth of12m. G.L n = 0-4 G = 2-65 S…

A:

Q: Find the flow rate in m'/sec/m at right angles to the cross section shown through the permeable soil…

A:

Q: There are three soils from left to right (1, 2, and 3). The soils have permeabilities ?1 = 0.09…

A:

Q: The section size of a water pipe is (100cm Χ 100cm), three types of soils A, B, and C are placed in…

A: Permeability is the property of soil due to which flow of fluids takes place in the soil. Seepage…

Q: Determine the effective vertical hydraulic conductivity, keff, of the rectangular prismatic…

A: Hydraulic conductivity -  kA = 1×10-4cmskB = 1×10-6cms Length = L = 12cm Width = w = 4cm Thickness =…

Q: Calculate the total, effective and pore-water pressures in point B. 3 m Lake Water Sand 10 m Unit…

A: To determine: The total, effective and pore water pressure at B.

Q: A long, straight, horizontal 1000 ft length of 2 ft diameter pipe carries a 60°F water flow of 30…

A: L = 1000 ftD = 2 ft Q = 30 cfse = 0.0033 ft

Q: Determine the seepage rate. Given: aj = 48 degrees, a2 = 30 degrees, L1 = 6 m, H = 17 m, H, = 21 m,…

A:

Q: Ground surface Contring Layer Confined aquifer ha K mid Bedrock Determine Q for aquifer above if im…

A:

Q: The wet weight of 29.9 x 10 -4 m3 of soil is 62.7 N. If the moisture content is 11.6% and the…

A:

Q: Layer 1: H₁ = 1.6 m, k₁= 4.5 m/day Layer 2: H₂ = 2.3 m, k₂ = 3.5 m/day Layer 3: H3 = 1.4 m, k3 = 5.1…

A:

Q: a. Compute the effective stress at C in kPa b. Compute the critical hydraulic gradient

A: solution  From the given date  void ratio e = 0.51 and specific gravity G= 2.719 find the saturated…

Q: For the soil profile shown in fig. top layer is sand. Initially the water table is 5m below ground…

A: Given: Soil profile shown in figure, Initially the water table is 5 m below ground level, which is…

Q: The section through a long cofferdam is shown below, the coefficient of permeability of the soil…

A: Coefficient of permeability (K) = 6 × 10-8 m/s Determine the quantity of seepage entering the…

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.