In order to compute the seepage loss through the foundation of a cofferdam, flownets were constructed. The result of the flownet study gave Nf = 6, Nd = 16. The head lost during seepage was 19.68 ft. If the hydraulic conductivity of the soil is k = 13.12 x 10-5 ft/min, compute the seepage loss per foot length of the dam per day. a.1.9 ft3/day/foot length of the dam b.1.95 ft3/day/foot length of the dam c.1.39 ft3/day/foot length of the dam d.2.9 ft3/day/foot length of the dam e.2.25 ft3/day/foot length of the dam

Q: : For the concrete Dam shown in figure, determine the total average seepage for the given permeable…

A: To find total seepage

Q: 4- Refer to Figure below. If H1=3 ft, H2=4.5 ft, h=1.5 ft, ysa=118.9 lb/ft³, area of the tank=6.25…

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Q: 5- An earth dam is shown below. Determine the seepage rate, q, in ft/day/ft length. Given: a1=35°,…

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Q: Q2 The figure illustrate a case in which water seeping from a reservoir into open trench (10m) away,…

A: Solution:

Q: Determine the quantity of seepage under the dam in m³/s. The coefficient of permeability of the…

A: Given:Flow net diagramRequired:Quantity of seepage

Q: Two observation wells have been constructed in the formation shown. The flow rate is 0.01 cu. m/hr…

A: Given: The flow rate is 0.01 m3/hr per unit width. Consider the figure,

Q: ll Seepage takes place around a retaining wall shown in Figure P2.9. The hydraulic conductivity of…

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Q: EXAMPLE 9.4 Refer to the flow net shown in Figure 9.11 (which is the same one as in Figure 8.8).…

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Q: 1. A sand sample of 35 cm² cross sectional area and 20 cm long was tested in a constant head…

A: Given :

Q: 5. According to the constant-head permeability test, calculate the hydraulic conductivity in cm/sec.…

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Q: Soil in a field has three layers. Each has a thickness of 3m, 4m, and 3m, from top layer to bottom…

A: H1=300cm H2=400cm H3=300cm

Q: If this soil sample was attached to a riser pipe and had flow conditions that are shown in the…

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Q: Soil sample and flow condition are shown in the following figure: Inflow с 2m Outflow Soil ↑ B A…

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Q: A pumping test was carried out for determining the hydraulic conductivity of soil in place. A well…

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Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.