Problem 2.2 The section through part of a cofferdam is shown in Figure. The coefficient of permeability of thesoil is 2.0x106 m/s. Draw the flow net and determine the quantity of seepage.2.00 mTAVA3.00 m3.00 m3.50 mFlow net.Quantity of seepage.

Given data: Permeability through the soil (k) = 2 x 10-6 m/s Flow net of the given problem:

Answered: Problem 2.2 The section through part of…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Assuming the groundwater table is at ground surface and the soil bulk unit weight is 20kN/m3. At 2m depth below ground level. The pore water pressure is approximately: O a. 19.6 kPa O b. 9.8 kPa O c. 200 kPa O d. 98 kPa
The flow net under a hydraulic structure has 5 flow channel with 10 equipotential drops. If the permeability of the bed material is 1.5 *10^-4 m/sec, find the quantity of seepage per meter width of the structure in m ^ 2 /sec under 3m head.
The velocity of flow through a soil mass having coefficient of permeability 3.5 x 10^4 mm/sec and hydraulic gradient 0.55 is- 11:31 PM BFF
2. The following description is correct ( ).A. the denser the grid in the flow network, the smaller the hydraulic gradientB. two points on the same equipotential line, the pore water pressure is always the sameC. the same flow network, any two adjacent equipotential line between the potential energy difference is equalD. The direction of the infiltration flow rate is the direction normal to the flow line 3. In the triaxial shear test, the test that keeps the pore pressure of the soil sample at zero throughout the process from the application of the circumferential pressure until the soil sample is damaged is ( ).A. Unconsolidated undrained test B. Consolidated drained testC. Solidification without drainage test D. Solidification fast shear test
Problem 7.2 only.
1. Given a vertical flow in a stratified soil which consists of three layers, their depths are di, d2, and d3 and their hydraulic conductivities are ki, k2, and k3, respectively. Determine a weighted average hydraulic conductivity for the soil.
The coefficient of permeability below a dam is 12 m/day. The water in the upstream side is 32 meter higher than on the downstream side (level with the ground). To estimate the seepage below the dam, a flow net is graphically drawn such that the number of potential drops, Nd = 8 and the number of flow channels Nf = 3. The base of the dam is founded 1.8 m below the ground. Between the heel and the toe of the dam, a distance of 32 meters, there are 6 potential drops. a. Estimate the seepage per meter length of the dam in liters per minute. (IN EXPONENTIAL FORM AND IN 2 DECIMAL PLACES) b. Determine the uplift pressure at the heel in kPa. (IN 2 DECIMAL PLACES) c. Determine the uplift pressure at the toe in kPa. (IN 2 DECIMAL PLACES)
Q#4 : 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 MSpaint or graph paper

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Problem 2.2 The section through part of a cofferdam is shown in Figure. The coefficient of permeability of the soil is 2.0x10“ m/s. Draw the flow net and determine the quantity of seepage. 2.00 m 3.00 m 3.00 m 3.50 m Flow net. Quantity of seepage.