A uniform soil deposit has a dry unit weight of 15.6 kN/m³ and a saturated unit weight of 17.2 kN/m³. The groundwater table is at a distance of 4 m below the ground surface. Point A is at a depth of 6 m below the ground surface. If the water table rises by 3.5 m, determine the change in effective stress at A. Indicate if it is maintained, increased or decreased.

Q: 8. Calculate the active lateral stress ratio of a soil with a friction angle of 41 degrees.

A: Friction angle (Φ) = 41° Determine the active lateral stress ratio of the soil.

Q: For the seepage situation shown below, calculate the effective vertical stress in kPa at point A.…

A: Given data in question  Saturated weigth 2100 kg/m3 Depths Downward seepage condition  To find out…

Q: For the following soil profile, calculate and plot the vertical and horizontal effective stress…

A: solution:   K=σhσv where,  σv=γ Z σh=K σv

Q: The soil profile for a proposed construction site is shown below. The groundwater table is located 2…

A:

Q: Consider a clay layer with a thickness of 36 meters and a Ccɛ = 0.2 and a Crɛ = 0.02.  A circular…

A: Ccɛ = 0.2Crɛ = 0.02D = 20 mqo = 225 kPa

Q: 7. A specimen of soil was collected from a depth of 10 m in a deposit of clay. The ground water…

A:

Q: Elevation (m) 2.0 3.0 5.4 20.6 Very fine wet sand with silt w = 5%, S = 40% w = 12%.S = 100% Fine…

A:

Q: The depth of water in a lake is 4m. the soil at the bottom of the lake consists of sandy clay. the…

A: Please refer below pages.If you have any doubts please feel free to ask.Explanation:Step 1:Step 2:…

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: A soil sample with a layered soil is placed in a tube 3m long. water is allowed to flow in the one…

A: The detailed solution and explanation are attached below.Explanation:Step 1: Step 2:

Q: : For the soil profile shown in figure below, determine total and effective vertical stresses and…

A: Given data,  Gs of sand = 2.66 Gs of silt = 2.7 Gs of clay = 2.72  e sand = 0.72 e silt = 0.66 e…

Q: Effective and Neutral Stress Question 2: The saturated unit weight of sand in the bed of a pond 20 m…

A: Sand in the bed of a pond-Depth h=20 mSaturated unit weight of sand = Unit weight of water Effective…

Q: A 3 meter thick fill was placed over a 9 meter thick compressible clay. Underlying the clay layer is…

A: Thickness of fill = 3 mUnderlying the clay layer is a very hard impermeable clay.The diameter of the…

Q: effective stress (kPa) at the base of each soil layer listed below. Assume the water table rest 4 m…

A: The given data is shown in the diagram as below.To determine the total stress, pore water pressure…

Q: A soil profile consisting of three layers is shown in Table and Figure below i. Calculate the values…

A: Total stress=σ=γzPore water stress=u=γwzEffecrive stress=σ=σ-u

Q: From the figure shown, H₁ = 0.60, H₂ = 0.90 m. and h = 0.45 m. The sand has a saturated unit weight…

A:

Q: The saturated unit weight of a 10 m thick clay layer is 20 kN/m3. Calculate the vertical effective…

A:

Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.