3.25 In a site consisting entirely of clays, an electric friction cone penetrometer measures the cone resistance q, at a depth of 8.0 m as 0.75 MN/m2. The water table is at 3.0 m below the ground level. The unit weights of the clay above and below the water table are 16.5 kN/m3 and 19.0 kN/m2, respectively. Estimate the undrained shear strength, preconsolidation pressure, and overconsolidation ratio at this depth.

Q: 50 and 100 kN/m vertical line loads are applied on the ground surface as shown in the figure.…

A: For, load= 50 kN/m vertical stress = (2Q/Z) (1/[1+(x/z)])2 Q= 50kN/m x= 5m, Z = 30m Therefore,…

Q: The effective shear strength parameters of a normally consolidated clay are Ø' = 25 and c' = 0. CU…

A: In consolidated undrained test The cell pressure, σ3= 112kPa The deviator stress, σd= 100 kPa To…

Q: Consolidation of Clay: Given Exercise Figure 7.4 and the accompanying information, what is the…

A: Given, Depth of clay layer, H= 6ft Porosity of clay,n=0.629Compression index, Cc=0.82Load acting at…

Q: direct shear test, when conducted on a remolded sample of sand, gave the following observations at…

A:

Q: 7. Figure 6 shows a clay layer of thickness 2H = 8m contained between two sand layers and subjected…

A:

Q: Q1/ For the following soil profile as shown below, estimate the effective vertical stress at points…

A: Unit weight of clayey sand= 17.5 kN/m3 Saturated unit weight of clay = 21 kN/m3 Saturated unit…

Q: In a drained tri-axial compression test, a sample of sand fails at deviator stress of 150 kPa under…

A: confining pressure; σ3 = 50 kPa Deviator Stress; ∆σ = 150 kPa Now, we Know. Pressure applied; σ1 =…

Q: According to the drilling works carried out on an area, 50 meters thick clay and an underlying rock…

A: Given Data-

Q: The stresses on a failure plane in a drained triaxial test on sand are as Follows: Normal Stress nf…

A:

Q: 1. Given the figure below plot the pore pressure, total stress and effective tress at the top,…

A: Finding out the total stress diagram,pore water pressure diagram and effective stress diagram.

Q: : A specimen of normally consolidated clay is consolidated to 722 kN/m² and then failed by…

A: We know that Pf =  and qf = We are given' = 722 KN/m2 ' = 26 degreeTo calculate we have = '  =…

Q: In a drained triaxial compression test conducted on dry sand, failure occurred when the deviator…

A:

Q: 10.17 Refer to Figure 10.47 A flexible rectangular area is subjected to a uniformly distributed load…

A: Introduction- Vertical stress is among the most significant pressures encountered by constrained…

Q: 25: Shear strength parameters of N.C. clay sample are: Ø = 15°, 6 = 30° a- In a CU test on the same…

A: Clay samples; ϕ=15oϕ'=30o The confined pressure, σc= 150 kN/m2 Normal stress, σ=100 kN/m2 The…

Q: nother method of determining the capillary rise in a soil is to use Hazen's capillary formula. The m…

A: GIVEN DATA:-⇒Dense silt layer thickness= 3m⇒Clay layer = 5m⇒Bulk unit weight of soil = 26.5…

Q: SIT N. Assume a buried stratum of clay 1.83 m thick will be subjected to a stress increase of 33.6…

A:

Q: Situation 6 - A consolidated drained triaxial test is conducted on a normally consolidated soil with…

A:

Q: =) For the soil deposit shown below, determine the maghltu following total stress pore water…

A: Total stress :⇒at z=0σ=0⇒at z=4σ=1.924=7.68tm3⇒at z=11σ=1.924+2.111-4=22.38tm3

Q: image attached.

A: Finding out shear strength at different elevations.

Q: A soil has an unconfined compressive strength of 120 kN/m2. In a triaxial compression test a…

A:

Q: A cross-hole shear wave velocity test is carried out on a clay layer. The sensors are spaced 10 m,…

A: Spacing - 10m mean time - 0.003 sec γ=135 lb/ft3 PI - 26 Cu = 60 kPa

Q: 12.9 The relationship between the relative density D, and the angle of friction o' of a sand can be…

A:

Q: Given a soil mass below, calculate the following in kPa: a. Major principal stress b. Normal stress…

A: stress on element are as follows

Q: consolidated drained triaxial test was conducted on a granular soil. At failure (σ1^')/(σ3^' ) =…

A:

Q: tri-axial test was conducted on normally consolidated clay. The results were: the confining pressure…

A: We knowσ1=σ2tan245+ϕ'2+2c'tan45+ϕ2

Q: A clear dry sand sample is tested in a dire. shear test. The normal stress and the shear stres at…

A: Given: Normal stress (σ)=120 KN/m2Shear stress(ζ)=120 KN/m2For dry sandCohesion (C)=0

Q: ) The effective shear strength parameters of a soil used in the construction of an earthen bund are:…

A: It is required to find the shear strength of soil.

Q: A saturated site is underlain by a 5m thick layer of clay with undrained strength = 80 kPa, OCR = 2,…

A: The values given in the question are as follows: The thickness of clay layer(hc)=5 m Undrained…

Q: 7.9 A specimen of soil was collected from a depth of 12 m in a deposit of clay. The ground water…

A: Given Depth 12 mLiquid limit 68Plastic limit 29Saturated unit weight 17.8 kN/m3Preconsolidation…

Q: Pre-consolidation stress at sample depth (kPa) = | |.... No decimals needed Based on the o'z0 value…

A: The soil at a depth experiences stress due to presence of overburden or other loads. These stress…

Q: i. The following information is collected from rock coring process in which the total core advance…

A: Given data,total core advance 65cmcore recovery20761016FINDa)total core recoveryb)the core recovery…

Q: A saturated specimen of cohesionless sand was tested under drained conditions in a triaxial…

A:

Q: Q.3) Determine the increase in vertical stress at a depth 4 m below point A due to surface loads…

A:

Q: A soil has an angle of shearing of 30° and cohesion of 35 kN/m^2. If the specimen of this soil is…

A: Angle of shearing = 30o Cohesion = 35 kN/2 Total Stress = 300 kN/m2 To Find : The value of lateral…

Q: Using the expression above, determine the distribution of the total and effective vertical stress…

A: From the given data we will calculate the total vertical stress and effective stress at each transit…