A half-closed clay layer is 8 m thick and it can be assumed that cv ¼ ch. Vertical sand drains 300 mm in diameter, spaced at 3 m centres in a square pattern, are to be used to increase the ra

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: A 2-m clay layer in the field has a current effective stress, o= 70 kN/m2. There is a net stress…

A: Effective stress - σ'0 = 70 KNm2 Net stress increase = ∆σ = 180 KNm2

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: QI- An embankment is to be constructed over a layer of soft clay 16 m thick as shown in figure 1.…

A:

Q: Calculate the primary consolidation settlement of the 3 m thick clay layer (Figure below) that will…

A: Given Data  Determine the primary consolidation (Sp)

Q: .In the given soil profile detemine the 6'of the points A,B.C and D. Show the v ariations in a…

A: Given data in question  Void ratios Depths of various soil layers Porosity Specific gravity  Water…

Q: The coefficient of permeability of a sand at a void ratio of 0.62 is 0.03 cm/sec. estimate the…

A:

Q: Q.3. Calculate the total primary consolidation settlement of the soil layres as showr Figure Q3…

A: Primary consolidation is due to expulsion of pore water due to continuous load. Its value is…

Q: 2 A 2-m clay layer in the field has a current effective stress, o6= 70 kN/m². There is a net stress…

A: 2 m clay layer effective stress = 70 N/mm2 net increse stress = 180 kN/mm2 primary consolidation =?…

Q: A half-closed clay layer is 8m thick and it can be assumed that the coefficients of consolidation in…

A: Given data coefficients of consolidation in both the vertical and horizontal directions are the same…

Q: 2 m 2 m 3 m Figure P2.11 A Dry sand; e = 0.5 G, = 2.65 B Water table Sand Gs = 2.65 e = 0.6 C Clay w…

A:

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

A:

Q: The coefficient of permeability of a sand at a void ratio of 0.62 is 0.03 cm/sec. Estimate the…

A: GIVEN -     Coefficient of permeability of sand (k) = 0.03        cm/sec     Void ratio (e) =0.62…

Q: An embankment for a highway is to be constructed from a soil compacted to a dry unit weight of…

A: Given :

Q: Estimate the primary consolidation settlement in the clay layer. Given: Ao = 100 kN/m²; H, = 4.0 m;…

A: It is required to determine the dry unit weight of sand. It is required to determine the saturated…

Q: A soil has a discharge velocity of 6×10 m/sec and a void ratio of .50. Its seepage velocity is. A B…

A: Discharge velocity- V=6×10-7 m/s. Void ratio e=0.50, To Find- The value of the seepage velocity Vs.

Q: Q: For the soil profile shown in figure. a) Determine the final consolidation settlement. b) If the…

A: Given data in question  Water table position  Depth levels Unit weights Void ratio Liquid limit  OCR…

Q: 4. For a normally consolidated clay, the following values are given. k (cm/sec) 0.45 x 106 e 0.78…

A:

Q: Question-3: A soil profile is shown in Figure 3.1. If a uniformly distri kPa, is applied at the…

A: Given, Compression index Cc=0.27  Recompression index Cr=0.045 Uniformly distributed load∆σ=100…

Q: Q: For the soil profile shown in figure. a) Determine the final consolidation settlement. b) If the…

A: Normally consolidated clay: The soil whose pressure is not greater than the present existing…

Q: a. How long will it take for 50% settlement to occur? Cv = 0.002 cm2 /sec. b. How long will it…

A: Given: consolidated clay layer = 3m = 300cm settlement  =  80 mm Cv = 0.002 cm2

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: Determine the consolidation settlement of the 4-m thick clay layer shown in the figure that will…

A: a) The overburden pressure at any location is the pressure due to the weight of the overlying…

Q: For the shown profile, find i . the final consolidation settlement, ii . consolidation settlement…

A:

Q: Refer to Figure 7.28. For the construction of an airport, a large fill operation is required. For…

A: Given : -  Average permanent load increases to = 70 KN/m2 Average effective overburden pressure on…

Q: 4. For a normally consolidated clay, the following values are given. k (cm/sec) 0.45 x 10 e 0.78 1.1…

A: For e = 0.78, k = 0.45×10-6 and for e = 1.1, k = 0.88×10-6 we have to find k at void ratio e =0.97

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

A:

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

A:

Q: A stratum of soil consists of three layers of equal thickness. The permeability of top, middle and…

A: Permeability of top layer = 10-4 cm/secPermeability of bottom layer =2x  10-4 cm/secPermeability of…

Q: clay layer, whose total settlement under a given loading is expectedto be 13cm settles 3 cmat end of…

A: Given- ∆H=13 cm∆h=3cm after 1 month

Q: Given the soil profile below, estimate the consolidation coefficient of the clay if Ao_z = 500 psf…

A: Given the soil profile below,  ∆σz=500 psf acts at the middle of the clay. Water table at 10 ft It…

Q: A 5-ft fill is to be placed over the following soil profile shown below. Determine if the clay is…

A: Height of fill = 5 ft  Pre consolidation pressure, σ'c = 1000 psf

Q: ventional What is an overconsolidated clay and what causes the overconsolidation? 0 three possible…

A: It is defined as the condition in which existing effective overburden stress is smaller than…

Q: Q1 The two-way drainage clay layer of 6m thick, how long will it take for 75% consolidation to be…

A: Given data in question 2 way drainage Height 6 m75% consolidation Cv= 0.24 cm2/minTo find out Time…

Q: The soil from a borrow area is excavated and used in a compacted fill for an embankment. The void…

A: Volume of solids will remain constant. i.e, the mass of solid and its specific gravity remain…

Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.