5. A soil on a hillslope has a slope-normal thickness of 2.2 m, bulk density of 1,625 kg/m³ and a slope of 37º. As usual, acceleration due to gravity is 9.8 m/s². What is the shear stress on the potential failure plane at the soil-bedrock interface to the nearest kPa? 6. For the same hillslope as in question 5, what is the normal stress on the potential failure plane to the nearest kPa?

Q: A rectangular foundation 4 m x 6 m (Figure 1) transmits a stress of 100 kPa on the surface of a soil…

A: The stress is 100 kPa. The load is calculated as, Q=Stress×Area=1006×4=2400 kN The expression for…

Q: Consider a soil mass resting on an inclined impermeable clay layer as shown in figure. The soil has…

A: The soil has cohesion c = 6 kN/m²,friction angle φ = 20° anddensity γ = 17 kN/m³.

Q: A desert site is underlain by an uncemented, unbounded, dry sand with friction angle = 34 degrees…

A:

Q: A specimen of saturated sand was consolidated under an all-around pressure of 105kN/m2.The axial…

A: Following is the given informationσ3 = 105 kN/m3   (cell pressure)σd = 70 kN/m3  (deviator…

Q: The water table in a deposit of uniform sand is located at 2 m below the ground level. Assuming the…

A: The water table in a deposit of uniform sand is located at 2 m below the ground level. The soil…

Q: Q = 900 kN Ground surface Df = 1 m Ground water table LxB = 3m x 2m eo = 0.5, c = 0.35, c, 0.06,…

A: The depth of the footing(Df)=1 m, The surcharge on the footing(Q)=900 kN, Length of the footing(L)=3…

Q: Figure 3 shows the stresses at failure for a point in a soil mass. Note A.U. (a) Draw the Mohr…

A: Given ;

Q: An unconfined cylindrical specimen of clay fails under an axial stress of 240 kN/m. The failure…

A:

Q: The results of a three consolidated undrained tri-axial test on saturated clay are as follows:…

A:

Q: A soil with a unit weight of 18 kN/m3 is loaded on the ground surface by a uniformly distributed…

A:

Q: The friction angle of a soil layer is 37 degrees and the cohesion is 5 Kpa. The lateral earth…

A:

Q: 7. Consider a stress state where p = 15 and q 12. The relevant soil properties are o = 35° and c= 3.…

A:

Q: An unconfined cylindrical specimen of clay fails under an axial stress of 240 kN/m2. The failure…

A:

Q: A rectangular foundation 4 m x 6m (Figure P1.20) trans- mits a stress of 100 kPa on the surface of a…

A: The load on the foundation is calculated as,

Q: deposit of sand has the following properties: angle of internal friction, Ф = 35°, Dry unit weight,…

A:

Q: soil element shown in figure 1 where the magnitude stresses on σx= 10KN/m3 and τ= 40Kn/m3, σy =…

A:

Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.