An unlined irrigation canal is aligned parallel to a river, as shown in the figure. This cross section continues for 2.5 km. The soils are generally clays, but a 150 mm thick sand seam (k = 9x10-2 cm/s) is present as shown. Compute the water lost from the canal to the river, due to seepage through this sand layer per day

Q: During the base flow process, the subsurface soil is? A- fully saturated. B- partially saturated. C-…

A: Base flow is that infilterated water which will join the main stream after long period of time…

Q: Earth is required to be excavated from the borrow pits for building embankment as shown in the…

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Q: A permeable soil layer is underlain by an impervious layer. Knowing that k = 4.8 x 10-3 cm/sec for…

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Q: Refer to Problem 3.4. Using Eq. (3.28), determine the average relative density of the sand. Assume…

A: Given; depth=6m Dry unit weight of sand from 0 to a depth of 6m =18kN/m3 Saturated unit weight of…

Q: The clay layer below was subjected to a surcharge that would a total settlement of 10 inches. If C,…

A: solution Given total settlement Sf=10inches required settlement S=5inches sp the degree of…

Q: 1. A proposed earth dam requires 4500 m³ of compacted soil with a void ratio, e = 0.47 and specific…

A: A proposed earth dam, Volume of compacted soil required = 4500 m3  Assumed and considered Gs = 2.76…

Q: Answer the following by True or False A soil having Plastic Index (PI) equal -4 ZERO is considered…

A: Plasticity Index is the range of moisture content over which a soil exhibits plasticity.

Q: 0.0 -2.0 -3.0 silty clay y = 18 kN/m³ k = 5 x 10°m/s -6.0 y= 20 kN/m² k = 2 x 10°m/s -7.5 sand y= 18…

A: When water table  is at  3 m below  then stresses total stress Neutral stress

Q: 1. From the video, the following data were obtained. a. Mass of SSD Sand = 505.0g b. Mass of…

A: For 1st sand, The saturated surface dry weight of the sample S =500 g Weight of pycnometer full of…

Q: Ground surface -Groundwater table (free surface) Direction of seepage H. Impervious layer A…

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Q: Given that coefficient of curvature = 1.4, D30 = 3 mm, D₁0 = 0.6 mm. 10 Based on this information of…

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Q: For constructing an embankment, the soil is transported from a borrow area using a truck which can…

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Q: a clay layer above the groundwater table. For the following variables, calculate and plot o, u, and…

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Q: Problem 2 Figure shows the layers of soil in a tube 100 mm x 100 mm in cross-section water is…

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Q: c) The characteristics of a soil profile are summarized in the Figure for Question 5 c. Seepage is…

A: Given: Hydraulic gradienti=0.8 Rate of flowQ=2.84×10-4 m3s Number of layersn=4 From the figure, k1=0…

Q: An unlined irrigation canal has been aligned parallel to a river, as shown (next page). This…

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Q: Problem Number 2: Given the figure below and considering an upward flow, forthe sand the following…

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Q: If the void ratio and discharge velocity for soil is 0.5 and 6 x 10-7 m/s respectively, what is the…

A: given- void ratio e=0.5discharge velocity V=6×10-7 m/s

Q: In the soil profile shown below, the clay is normally consolidated and H,=9m, H2=5m, H3=3m. The…

A: Given  For sand  e= 0.56 , Gs = 2.6  Clay  Liquid limit= 63 % e= 0.83, Gs= 2.77

Q: An unit volume of a mass of saturated soil is subjected to horizontal seepage. The saturated unit…

A: Given: A unit volume of a mass of standard soil is subjected to horizontal seepage. The standard…

Q: Laboratory tests performed on a saturated alluvial subgrade soil gave the following information: In…

A: Given: water content w=11.9% Specific gravity G=2.65 D30=8 mmD60=20 mmD10=4.76 mm

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

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Q: The diagram of a sand drain is shown in Figures 16.21 and 16.22. Given: rw = 0.25 m, rs = 0.35 m, de…

A: Solution: a) Calculate degree of consolidation of sand drains using formula; Tv=π4Uv1002Here, Tv=…

Q: Homework Chapter (5) A permeable soil layer is underlain by an impervious layer as shown in Figure.…

A: H=4.2m k=4.8 * 10-3 cm/sec

Q: Q3: For the soil set shown in the fig below, find the pore water pressure in kPa at point c, known…

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Q: The total volume of a soil specimen is 80,000 mm3 and it weighs 150 grams. The dry weight of the…

A: Given Data Density of soil specimen=2680 kg/m3 Density of water=1000 kg/m3 We have to find specific…

Q: N = 5, Na = 12, q=7.2 m'/day/m 5.22 Draw a flow 37 m net for the T 10 m weir shown in Figure.…

A: Given- K=10-3 cm/sec

Q: Practice solving each of the following items for additional study. 1. A permeable soil layer is…

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Q: Draw the diagram based on given data. A 3 m layer of sand, of saturated unit weight 18 kN/m3,…

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Q: a. Plot P0 and P1 readings with depth in one plot and show the groundwater table.b. Calculate the…

A: a. Plot P0 and P1 readings with depth in one plot and show the groundwater table.b. Calculate the…

Q: Subject :Geotechnical engineering Here's the problem For a soil, suppose that D10=0.08mm,D30=0.22mm…

A: Given data : D10 is the grain diameter corresponding to 10% passing by weight=0.08 mmD30 is the…

Q: Q1. Draw phase diagram of soil and what is formula of water content?

A: Asked: To draw the phase diagram of soil and give the formula for water content.   The phase diagram…

Q: If the percentage swell of a soil is 16.67 % a. Determine the natural state of soil whose weight is…

A: Swell = 16.67 %

Q: Prob. 16.8 A clay layer of thickness 7 m after 1 year when it was consolidated to 40% settled by 13…

A: Given data, For 7m clay layer, H1= 7m, t1= 1year Δh1=13cm For clay layer, 7+14=21m, H2= 21m t2=…

Q: Data taken from a Liquid Limit test on a clay using the Casagrande cup device. The natur water…

A: Casagrande cup device test is used to determine liquid limit on a clay Liquid limit of soil is…

Q: a connections, calculate the pin rea . Usea pin diameter of 16 mm in a

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Q: In the hatched region in the diagram, water is flowing through saturated earth. Calculate the total…

A: Introduction Calculating the elevation pressure and total head, the datum heads at the points A,B…

Q: The section through a long cofferdam is shown below, the coefficient of permeability of the soil…

A: Coefficient of permeability (K) = 6 × 10-8 m/s Determine the quantity of seepage entering the…

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.