A surcharge of 100 kPa is applied over a large area above the soil profile shown in the figure below. Calculate the coefficient of consolidation in mm2/min if an average degree of consolidation of 30% was measured on site 90 days after the start of the loading event. (acceptable tolerance = 10%).

Q: Q5): For the soil profile shown in figure, the piezometer reading at point (A) at time (t) after…

A:

Q: the horizontal velocity is 0.2 m/s?

A: Grit chamber are the channels provided for removing the inorganic grit like sand, gravel etc. and…

Q: A layer of soft clay 4 m thick under construction building, the overburden pressure over the center…

A:

Q: A surcharge of 250 kPa is applied over a large area above the soil profile shown below. The clay…

A: Settlement of clay after 40 days is 32.07mm.Explanation:

Q: Refer to Figure 11.40. Given: H = 5 ft, H, = 7 ft, H3 = 6 ft, and Ao = 3000 lb/ft. Also, Clay: e =…

A: Given data: H1=5 ftH2=7 ftH3=6 ftIncrease of effective pressre (∆σ)=3000 lb/ft2

Q: The time required for a 50% consolidation of a 25 mm thick layer (drained at both sides) in the…

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Q: Figure 1 below shows the CBR results for two materials (1 and 2) what is the CBR value for each…

A: Given,CBR results for two materialsto determine,for soil 1the resilient modulus of the subgrade soil…

Q: the soil if the building life is expected to be 45 years. Report your answer to thre Coefficient of…

A:

Q: A clay specimen was tested in a laboratory consolidation device, which was 12.7 mm (½ in.) thick and…

A: Given that:                       size of specimen, h = 12.7 mm                            So,…

Q: Two identically clay samples of the same size designated as A and B are subjected to consolidation…

A: Consolidation of sample A in 10 min. = 50 %To Find :The time required for 50% consolidation to occur…

Q: When a large load present above a clay layer is removed before new construction begins above the…

A: When a large load present above a clay layer is removed before new construction begins above the…

Q: The soil profile shown is to carry a surcharge of 61 kPa applied at the ground surface. The result…

A: Given data: Surcharge=61 kPa  Saturated unit weight of the clay is 18.2 kN/m3  Void ratio=1.1 It is…

Consolidation parameters

Consolidation is the process of expulsion of pore water present in the voids of soil solids under the pressure of the applied load. This is a quick process in the case of coarse-grained soils since the permeability is high due to the presence of more voids, while it is a slow and gradual process in the case of clayey soil as the permeability of clay is less. An example of consolidation is the settlement of soil under a building due to the load coming from the building.