*Consider the map of three well locations shown in Figure 3.29. The hydraulic conductivity in the north-south direction is 20 m/day, and the hydraulic conductivity in the east-west direction is 5 m/day. Each well is screened in the same horizontal aquifer. The ground surface elevations and water depths at these wells are listed in Table 3.1. (a) Complete the table, listing the hydraulic head at each well. (b) Calculate the components of the specific discharge in the north- south and the east-west directions. North 1000 m A 1000 m Fig

*Consider the map of three well locations shown in Figure 3.29. The hydraulic conductivity in the north-south direction is 20 m/day, and the hydraulic conductivity in the east-west direction is 5 m/day. Each well is screened in the same horizontal aquifer. The ground surface elevations and water depths at these wells are listed in Table 3.1. (a) Complete the table, listing the hydraulic head at each well. (b) Calculate the components of the specific discharge in the north- south and the east-west directions. North 1000 m A 1000 m Fig

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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The distance between two pumping wells is 100 m. The transmissivity of the confined aquifer, which all the wells fully penetrate, is 1000 m²/day. The radius of influence of each well is 800 m. The pumping rate for Well #1 is 2400 m?/day and the pumping rate for Well #2 is 1800 m³/day. Determine the steady-state drawdown at the point P as shown in the figure below 40 m 60 m Well #1 Well #2
9) A well is located in a confined aquifer near the intersection of a constant head and impervious boundary. a) Estimate the steady state drawdown in the well for Q=2 ft³ s, rw = 1 ft, distance from the well to stream= 300ft and distance from well to impervious boundary= 150 ft. T = 0.14ft²/s b) Estimate the steady state drawdown at point P located midway between the well and the steam. The angle between the stream and the impervious boundary is 90°
A 30 cm diameter well completely 15 points penetrates a confined aquifer of permeability of 45 m/day. The thickness of the aquifer is 20 m. Under steady state of pumping the drawdown at the well found to be 3.0 m and the radius of influence was 300 m. Calculate the discharge of the well * Pumping well dia = 2r + Original piezometric surface Piezometric surface under pumping Aquiclude Flow Confined aquifer Aquiclude Well Operating in a Confined Aquifer 1.548 m^3/min 0.0258 m^3/min 0.258 m^3/min 0.0851 m^3/min
TELEGRAM Q1: A 30cm diameter well penetrates vertically through an aquifer to an impermeable stratum located 18.0 m below the static water table. After a long period of pumping at a rate of 1.2 m3/min, the drawdown in test holes 11m and 35 m from the pumped well is found to be 3.05 and 1.62m respective. What is the hydraulic conductivity of the aquifer? Express in meters per day. What is its transmissivity? Express in cubic meters per day per meter. What is the drawdown in the pumped well?
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31 Yuri wants to determine the permeability of an aquifer. The aquifer has a test well 300-mm in diameter with two observation wells. A pumping test was conducted for 24 hours with the discharge being held constant at 5,721.4 m^3/day. The first one, 81.07 meters from the test well, has a draw-down of 0.6 meters. The second one, 40 meters from the test well, has a draw-down of 1.43 meters.The static water table penetrates the well to a depth of 25 meters. Determine the radius of influence of the aquifer in meters. Round off to three decimal places.