8.7 A permanent surcharge of 100 kN/m2 is to be applied on the ground surface of the soil profile shown in Figure P8.3. It is required to eliminate all of the primary consolidation in 3 months. Estimate the total surcharge o = o,+o; needed to achieve the goal. Sand 1.5 m 1= 17.3 kN/m G.W.T. Sand 1.5 m Toat = 19.5 kN/m³ Clay Taat = 17.3 kN/m³ C,= 13 10°cm³/min 3 m Sand

Q: The old building (A) is to be removed and replaced by a new building (B), as shown in the Figure.…

A: OCR = Preconsolidated pressure (σp) Present effective stress (σo) σo = (15 × 2) + (20 - 9.81) 4 =…

Q: Given: rw = 0.25 m, rs = 0.35 m, de =4.5 m, cv 5 cvr = 0.3 m2/month, kh/ks 5 2, and Hc = 9 m.…

A: rw=0.25 m rs=0.35 m de=4.5 m Cv=0.3 m2/month khks=2 Hc=9 m Double drainage, d=Hc2=92=4.5 m

Q: Due to a certain loading condition, the initial excess pore water pressure distribution in a 4m…

A:

Q: Q.3. A Clay layer, shown in figure (2) is loaded by a continuous surcharge (fill material of sandy…

A: Given, γfill = 13 kN/m3  Depth of fill = 1 m

Q: sand: Ydry = 14.6 kN/m³; Ysat = 17.3 kN/m³ clay Yeat 19.3 kN/m³; LL = 38% e = 0.75 If uniformly…

A:

Q: 4. Given: Refer to fig. 1 Δον 3000 psf H1 = 5ft , H2 = 7 ft , H3 = 6 ft Sand: Gs = 2.65 ,e, = 0.58…

A:

Q: What is the coefficient of volume change (using change in void ratio method) for pressure range 100…

A:

Q: A 4.0 m thick layer of fill material is to be placed on the ground surface of the soil profile shown…

A: H = 4 m = 20.2 kN/m3

Q: 1. For the soil system presented below, calculate and draw diagrams of distributions of the total…

A: Answer  We know that effective stress(σ') is given by the difference between the Total stress(σ) and…

Q: Q2: For the soil profile and a) Final consolidation settlement. b) Time required for the settlement…

A:

Q: A soil profile is shown in the figure. If a uniformly distributed load is applied on the ground…

A: To Find Ultimate primary consolidation settlement

Q: 04: A) For the soil profile shown in Figure (4): 1- Find the final consolidation settlement 2-…

A: This question is from Consolidation in Geotechnical Engineering.

Q: 05: A) For the clay layer shown in Fig.(4), find the consolidation settlement for: - Uniformly…

A:

Q: system primar e followings 50 kN/m? а) о — 150 kРа Sand Yt = 18.7 kN/m3 5 m b) o = 175 kPa c) o =…

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: A 1.5 m thick strata of sand has a dry unitweight of 15 kN/m3. A contractor passes a vibratory…

A: To determine: The new thickness.

Q: A stratum of normally consolidated clay of thickness 10 ft is drained on one side only. It has a…

A:

Q: 3. Refer to figure shown. Determine H. H '6 m . 4.1 m Saturated clay Ysat=17.5 kN/m³ Sand: Y = 16…

A:

Q: Q3: A normally consolidated clay layer is 5 m thick (one-way drainage). From the application of a…

A:

Q: A surcharge of 100 kPa is applied over a large area above the soil profile shown in the figure…

A: A surcharge of 100 kPa is applied over a large area above the soil profile shown in the figure…

Q: Q6: A saturated clay sample was consolidated in the triaxial cell under a cell pressure of 150…

A:

Q: 11.18 A 4.5 m saturated clay layer (two-way drainage) subjected to surcharge loading underwent 90%…

A:

Q: Due to the application of a surcharge of g=1.8 ton/m³ and height o 7dry = 1.7 t/m³ w = 20% Sand 4 m…

A: Consolidation is the normal removal of water and frequent stress shift from the pore water to soil…

Q: Calculate the consolidation settlement for soil profile shown below: yfill =20 KN/m : H fill = 5.0 m…

A: Given data- A soil profile as shown below- To Find- The consolidation settlement for the soil…

Q: Q.3 For the shown profile, estimate the consolidation settlement using three different Fill (3m, Y =…

A: step 1-

Q: Der silty sand layer and a gravelly sand layer. The A 20 m thick clay layer is sandwiched between a…

A:

Q: Consider the consolidation situation below and answer the questions. 200 kPa 200 kPa Water Table…

A: Note :- diagram is not required in solution. So not redrawing the same diagram again.  Given :-…

Q: ● It is stated that the clay layer shown in the figure is OVER CONSOLIDATED clay. The…

A:

Q: A soil profile is shown in Figure 8.23. The preconsolidation pressure is 3400 lb/ft. Estimate the…

A: For…

Q: I For soil profile shown in Fig. Calculate the amount of ultimate consolidation settlement( 2 m 0.5…

A:

Q: A clay layer 5 m thick has double drainage. It was consolidated under a load of 127.5 kN/m2. The…

A:

Q: Use unit weight of water = 10kN/m3 in the following questions. A soil profile is shown in Figure…

A:

Q: A soil profile is shown in the figure below. A uniformly distributed load, Δσ is applied at the…

A:

Q: Q5: A consolidated-drained triaxial test was conducted are as follows: 03 120 kN/m? (Ao)-180 kN/m2…

A:

Q: A clay specimen drained on both sides was tested. The data were obtained P1=50 kPa e1=0.92 P2=120…

A: Coefficient of compressibility Coefficient of compressibility= ∆e∆σCoefficient of compressibility=…

Q: A 10 m thick clay layer with single drainage settles 10 cm. in 5 year. The coefficient of…

A: Given: Single drainage Settlement S=10cm in t=5 years. Coefficient of…

Q: 1- Find the final consolidation settlement 2- Having the final consolidation settlement of (20) cm,…

A: This question is from Consolidation in Geotechnical Engineering.

Pricing Excavation and Backfill

Backfill, in construction, is the activity of returning the soil and gravel that are removed during building construction or using them again to toughen and support the foundation of the building or any other structural component.