Water flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.33 m². d1=d2=d3=0.52 m. Head difference is 0.92 m. Inflow Outflow Soil A Soil B Soil C -d2 Coefficient of Permeability for Each Soil: Soil A Kax 2.99 x 10-2 cm/s Soil A Kaz 1.44 x 10-3 cm/s Soil B Kbx 1.63 x 10-² cm/s Soil B Kbz 2.22 x 10-³ cm/s Soil C Kcx|3.15 x 102 cm/s Soil C Kcz 3.17 x 10-3 cm/s Compute the flow of water through the soils in liters/sec. Use 4 decimal places. D

For moist soil Volume = 0.25 ft3 %3D Weight = 30 lb %3D Weight of dry soil = 26.1 lb Gs = 2.63 Find the porosity 0.149 0.69 0.36 0.57

Following are the result of a shrinkage limit testInitial volume of soil in saturated state = 24 ccFinal volume of soil in a dry state = 15.9 ccInitial mass in a saturated state = 44 gFinal mass in a dry state = 30.1 ga. Determine the dry density of the soil ing/ccb. Determine the void ratio of the soil.c. Determine the shrinkage limit of the soil.d. Determine the shrinkage ratio.e. Determine the specific gravity of the solids.

A stratum of soil consists of three layers of equal thickness. The permeability of top and bottom layers are k = 10^-4cm/s and that of middle layer is k = 10^-3 * cm / s, then the value of the horizontal coefficient of permeability kH for the entire soil layer is?

The moist unit weights and degrees of saturation of a soil are given below degree of saturation        moisture unit weight 50                                             16.64 75                                              17.73 1. determine the saturated unit weight in kn/m3 2. determine the unit weight of soil in in kn/m3 if s = 13%. round off to two decimal places 3.  determine the unit weight of the soil in in kn/m3 if s = 69% round off to two decimal places

Gradation parameters of soil (a) are: D10 = 0.08 mm, D30 = 0.22 mm, and D60 = 0.41 mm. and for soil (b), gradation parameters are: D10 = 0.24mm, D30 = 0.82, and D60 = 1.81mm.  Calculate the coefficient of uniformity and the coefficient of curvature.  Compare the soils based on their gradation parameters and discuss the expected engineering behavior of each soil.

3.5 is already answered please answer 3.6

Situation 1: Dry soil with Gs = 2.7 is mixed with water to produce 20% water content and compacted to produce a cylindrical sample of 40 mm diameter and 80mm long with 5% air content. Calculate the following: a. Mass of the mixed soil that will be required b. Void ratio of the sample c. Dry unit weight d. Moisture unit weight e. Saturated unit weight f. Amount of water to be added for full saturation.

2. The field unit weight of the soil sample 1s 1960 kg/m3 and the unit weight of the soil particle is 2700 kg/ m. If the emax = 0.69 and emin = 0.44, determine the following: a) Specific gravity b) Dry unit weight if water content is 15% c) Porosity d) Relative density e) Saturated unit weight f) Effective unit weight g) Weight of water in KN that must be added per m3 for a 90%-degree saturation h) Mass of water in kg to be added per 2.5m3 to reach full saturation i) If max dry unit weight is 18KN/m³, what is the percentage compaction? j) Is it within the allowable compaction range of 95 of relative +0.2?

Q cohesionless soil, geotech.