Design a tubewell to deliver 33,000 gallons per hour at o depression head of 5 m. The average water level is 10 m below the ground in October and 15 m in July. The geological investigations have yielded the following results at the site of boring : Type of Strata Surface clay Very fine sand Clay with Kankar Depth 0 to 5 m 5 to 20 m 20 to 30 m 30 to 50 m Coarse sand 50 to 60 m Clay 60 to 70 m Medium sand Below 70 m Clay with Sand stone

Design a tubewell to deliver 33,000 gallons per hour at o depression head of 5 m. The average water level is 10 m below the ground in October and 15 m in July. The geological investigations have yielded the following results at the site of boring : Type of Strata Surface clay Very fine sand Clay with Kankar Depth 0 to 5 m 5 to 20 m 20 to 30 m 30 to 50 m Coarse sand 50 to 60 m Clay 60 to 70 m Medium sand Below 70 m Clay with Sand stone

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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A soil sample 14 cm in diameter is placed in a tube 1m long. A constant supply of water is allowed to flow into one end of the soil at A and the outflow of B is collected by a bearer. The average amount of water collected is 1.4 cubic centimeter every 8 seconds. The tube is inclined and has a head difference of 2.3 m. Give the seepage velocity if porosity is 0.291.
Using the FE handbook, can I get a step by step on how to answer? Disregard slide 14
(1) A well is drilling to the depth of 6000 m. Formation pore pressure can be expressed in equivalent mud weight is 1.50 g/cm' at the depth and changes in proportion to well depth. Also, overburden pressure gradient is 0.0245 MPa/m. Calculate: a. Pore pressure gradient at 6000 m, MPa/m. b.Pore pressure, psi, at 6000 m. c. Matrix stress gradient, MPa/m d.Matrix stress at 6000 m, MPa
The answer should be 9.56"
9.4 An exploratory drill hole was made in a stiff saturated clay (see Figure 9.9). The sand layer underlying the clay was observed to be under artesian pressure. Water in the drill hole rose to a height of 4 m above the top of the sand layer. If an open excavation is to be made in the clay, how deep can the excavation proceed before the bottom heaves? Exploratory drill hole G₁=2.72 6.1 m Moisture content -35% m 4m £ Saturated clay Sand
Solve using 3 methods: 1 - Bazaraa Method 2 - Peck method 3 - Liao - Whitman method
Please solve it within 30 minutes please
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A well was constructed to pump water from a confined aquifer. Two observation wells were constructed distances of 60m and 220m respectively. At a steady pumping rate of 0.15m^3/min, the drawdown in the observation wells were respectively equal to 1.5m and 5.2m. Diameter of the test well is 0.75m and thickness of confined aquifer is 15m. 1. Determine the hydraulic conductivity of the soil in m/min. 2. Determine the drawdown at the test well in m. 3. What is the value of the transmissivity of the confined aquifer in m^2/day?