El. 30 m sheet piles 5.0 m El. 27 m A El. 22 m 6: 5 El. 20 m Impervious layer 2.
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The sheet pile is driven in the Cebu South reclamation area and the area to one side is pumped down as shown in the flow net. The permeability of the sand is 0.001 m/s. below the elevation of 20 m us an impermeable rock layer.
Determine the flow per unit length.
How high (above the ground surface) the water will rise if a piezometer will be placed at A?
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- Refer to Figure 8.23. Given:• H1 = 6m• H2 = 1.5 m• D = 3 m• D1 = 6 mDraw a flow net. Calculate the seepage loss per meter length of the sheet pile (at a right angle to the cross section shown).pesign a rectangular sedimentation tank to treat 120000 m3/day flows. ssume the SOR=30 m/day, L= 32 m, LW-4:1. D.T-3hr?Q1#: For the concrete Dam shown in figure, determine the total average seepage for the given permeable strata by drawing Flow Net. The detail dimensions are given on the figure. The head of water on upstream side is 6ft and on downstream side is 1ft. Assume of Nf= 3, Nd= 6 and rectangular flow elements. Use paint or graph paper. SIR PLS, GIVE ME PROPER AND CORRECT ANSWER WITH FULL DETAILS AND ALSO USE PAINT OR GRAPH PAPER. THANKS
- An oil tank is to be sited on a soft alluvial deposit of clay. Below the soft clay is athick layer of stiff clay. It was decided that a circular embankment, 10 m diameter,with wick drains inserted into the soft clay would be constructed to preconsolidateit. The height of the embankment is 6 m and the unit weight of the soil comprisingthe embankment is 18 kN/m3. The following data are available: thickness of softclay = 7 m, ks = 1 × 10−10 m/s and Ch = 0.6 m2/yr. The desired degree ofconsolidation is 90% in 12 months. Determine the spacing of a square grid of thewick drains. Assume wick drain of size 100 mm × 3 mm and qw = 0.1 × 10−6 m3/s.The flow point distance is 4 m. Assume a half-closed system.What are wet ESPs (WESPs)? What are their advantages?Wire-pipe designs of wet ESPs can achieve higher efficiencies. Why?
- A deposit of cohesionless soil with a permeability of 0.3 mm/s has a depth of 12 m with impervious ledge below. A sheet pile wall is driven into this deposit to a depth of 8 m. The wall extendsabove the surface of the soil, and a 3 m depth of water acts on one side. Sketch the flow net and determine the seepage quantity. Provide a diagram a.600 ml/s/meter length b.300 ml/s/meter length c.900 ml/s/meter length d.1200 ml/s/meter lengthDerive the dimensions proportion (b/d) for the minimum seepage losses cross section of trapezoidal shape.Assume gw= 10 kN/m3 or 62.5 pcf and Gs=2.7 unless stated otherwise for all the problems in this test.
- A dam includes a sheet pile "cut off" wall near the toe, installed to 7 ft below the groundline. Water seepage is assumed to be at steady state at this time step shown. At this time, the depth of the upstream pond (headwater) is 5 feet. The groundwater is at the same level as the ground on the downstream/tailwater side. The sand stratum thickness, where water is flowing, is 9 ft thick. The permeability of the sand, in the zone of the flow net, is k=42ft/day, the length of the dam (into the page) is 150 ft, and the unit weight of the sand is γsat=128 lb/ft3 (saturated unit weight of the soil). Use γw=62.4 pcf (unit weight of water) for your calculations, where necessary.What is the factor of safety against a quick condition? (use the dimensions given in the problem state to help estimate lengths, where needed)The value of k of soil around a sheet pile is 10-6 m/s. The flow net of this sheet pile consists of 5 flow lines and 11 equipotential lines. Determine the rate of seepage (in cm3/s per m) if the difference in the water level is of 4m.Determine by direct ibtegration the centeoid of the area shoen. Express answer in terms of a and h