A ditch is required for a utility line near an ephemeral canal, which at the time of excavation was filled with water. Within this excavation, there exists layer of sandy-silt of average thickness a 0.8 m cuts across the otherwise impermeable clay. This sandy-silt layer is situated 1.90 m above the bottom of the ditch and 7.5 m from the canal's bottom. The sandy-silt layer introduces a significant contrast in permeability within the soil structure. Specifically, the average vertical hydraulic conductivity is 1.5 x 104 cm/s, while the average horizontal hydraulic conductivity is 15 x 10 cm/s. The specific gravity of the sandy-silt layer was tested to be at 2.65. a. b. Determine the hydraulic gradient (Remember to include the pressure head). Determine the velocity of flow, in cm/s. C. Determine the seepage velocity (cm/s), if w = 25% and S = 0.75. d. Assuming a 1-m length of ditch, determine the flow rate of water (ml/day) from the canal to the river. Ditch EL:993 m. EL:991 m 100 m Sant layer EL:1000 m Canal EL:992 m

A ditch is required for a utility line near an ephemeral canal, which at the time of excavation was filled with water. Within this excavation, there exists layer of sandy-silt of average thickness a 0.8 m cuts across the otherwise impermeable clay. This sandy-silt layer is situated 1.90 m above the bottom of the ditch and 7.5 m from the canal's bottom. The sandy-silt layer introduces a significant contrast in permeability within the soil structure. Specifically, the average vertical hydraulic conductivity is 1.5 x 104 cm/s, while the average horizontal hydraulic conductivity is 15 x 10 cm/s. The specific gravity of the sandy-silt layer was tested to be at 2.65. a. b. Determine the hydraulic gradient (Remember to include the pressure head). Determine the velocity of flow, in cm/s. C. Determine the seepage velocity (cm/s), if w = 25% and S = 0.75. d. Assuming a 1-m length of ditch, determine the flow rate of water (ml/day) from the canal to the river. Ditch EL:993 m. EL:991 m 100 m Sant layer EL:1000 m Canal EL:992 m

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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