The section of a cofferdam is shown below. If the coefficient of permeability of the soil is k =5 x 10-3 m/s, determine the seepage into the ditches per meter length of the cofferdam.El 38mW.S.El 28mDitchEl 18mEl 10mEl 0Impervious

Answered: The section of a cofferdam is shown…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

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Problem 1P

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The section through a long cofferdam is shown below, the coefficient of permeability of the soil being 6x10-8 m/s. Determine the quantity of seepage entering the cofferdam. 5.50 m I 0 1 2 3 4 5 As = 0.70 ml +cl 10 B ax 15 m
Determine the seepage through the homogeneous earthen dam section shown below, if coefficient of permeability of soil material of dam is 5 x 10-4 cm/sec. 10m Free Board = 2.0m 1 Horizontal Filter 20m 3. 2.5 30m- 36.50 m
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
A 50-yr flood typhoon occurred in Metro Manila, started from 12:00AM of Dec 14 to 12:00PM of Dec16. Knowing that the initial infiltration capacity of the soil in the area is 0.013m per hour, the time constant as 0.43 per hour, and the final capacity of soil for infiltration is 0.013mm per min. Use the Horton's equation in getting the infiltration capacity of soil in mm/hr at 12am of December 14.
Problem 7.2 only.
Lecturer: Roozbeh Safaeian Amoly Duration: 90 minutes 1. A soil sample 15 cm in diameter is placed in a tube 3 m long. A constant supply of water is allowed to flow into one end of the soil at A, and the outflow at B is collected by a beaker as shown in the figure. Determine (a) hydraulic gradient, (b) flow rate, (c) average velocity, (d) seepage velocity if e 0.7, and (e) hydraulic conductivity, if the average amount of water collected is 3 cm for every 20 seconds. 10 kPa 1.4 m F 1 5m-- 15m-- 1sm-l- 1.5m-| B A Soil 2m Exit Datum 1.75 m 15m
Results of an infiltrometer test on a soil are given below. Determine the Horton's infiltration capacity equation for this soil by identifying the parameters fo fcand k. Time from start (hr) 0.25 0.50 0.75 1.00 1.25 1.50 1.75 | 2.0 Infiltration capacity in cm/hr 5.6 3.20 | 2.10 | 1.50 1.20 | 1.10 1.0 1.0
1. A permeable soll layer is underloin by animpervi ous loyer as shown With k-53x10^-3cm/sec for the permeable layer, calculate the rate of seepage through it in m^3/hr/m width if H=3m and a = 8 C
A flow net below a dam consists of 24 equipotential drops and 7 flow channels. The difference between the upstream and downstream water levels is 6 m. The length of the flow line adjacent to the toe of the dam at exit is 1 m. The specific gravity and void ratio of the soil below the dam are 2.70 and 0.70, respectively. The factor of safety against piping is
Question 2: After conduct an experiment, you found that the soil for the watershed have an initial rate of infiltration equal to 1.35 in./hr and a final capacity of 0.3 in./hr. Assuming that the time constant k = 0.4, calculate the soil infiltration capacity at the times 10 min, 15 min, 30 min, 1 hr, 2 hr, 4 hr, and 6 hr using Horton's equation. Infiltration

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The section of a cofferdam is shown below. If the coefficient of permeability of the soil is k = 5 x 10-3 m/s, determine the seepage into the ditches per meter length of the cofferdam. El 38m W.S. El 28m Ditch El 18m El 10m El 0 Impervious