A confined aquifer is recharged by a continuous supply of water from the certain source. The ave. Thickness of the aquifer was determined to be 25m and the ave width is 4 km. The hydraulic conductivity ( coefficient permeability ) of the aquifer was obtained at 40m per day and its porosity is 25% .The piezometer heads in two wells 1.325km apart are 65 m and 60m . from a common reference datum.From the given data, obtain: 1) The rate of flow through the aquifer in cubic meter per day; 2) Evaluate the seepage velocity in meters per day; 3) Estimate the time of travel, in days, from the head of the aquifer to a point 4km downstream.
A confined aquifer is recharged by a continuous supply of water from the certain source. The ave. Thickness of the aquifer was determined to be 25m and the ave width is 4 km. The hydraulic conductivity ( coefficient permeability ) of the aquifer was obtained at 40m per day and its porosity is 25% .The piezometer heads in two wells 1.325km apart are 65 m and 60m . from a common reference datum.From the given data, obtain: 1) The rate of flow through the aquifer in cubic meter per day; 2) Evaluate the seepage velocity in meters per day; 3) Estimate the time of travel, in days, from the head of the aquifer to a point 4km downstream.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A confined aquifer is recharged by a continuous supply of water from the certain source. The ave. Thickness of the aquifer was determined to be 25m and the ave width is 4 km. The hydraulic conductivity ( coefficient permeability ) of the aquifer was obtained at 40m per day and its porosity is 25% .The piezometer heads in two wells 1.325km apart are 65 m and 60m . from a common reference datum.From the given data, obtain:
1) The rate of flow through the aquifer in cubic meter per day;
2) Evaluate the seepage velocity in meters per day;
3) Estimate the time of travel, in days, from the head of the aquifer to a point 4km downstream.
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