Q6/a: A soil of two layers has a hydraulic conductivity of 8(cm/day) for the first layer, and 2.5(m/day) for the second layer. There is a boundary level which separate the two layers and the location of the boundary is after the first layer. The drain is installed on the second layer at a distance of 3.2 m from the impervious layer. The total depth of the second layer is 5m. The depth of water table from drain level is 2.5m, the recharge is 2.7(cm/day), and drain wetted parameter 0.3m. Find drain spacing using simplified Hooghoudt - Ernst Equation. 85.13 m 90.13 m O 105.13 m

Q6/a: A soil of two layers has a hydraulic conductivity of 8(cm/day) for the first layer, and 2.5(m/day) for the second layer. There is a boundary level which separate the two layers and the location of the boundary is after the first layer. The drain is installed on the second layer at a distance of 3.2 m from the impervious layer. The total depth of the second layer is 5m. The depth of water table from drain level is 2.5m, the recharge is 2.7(cm/day), and drain wetted parameter 0.3m. Find drain spacing using simplified Hooghoudt - Ernst Equation. 85.13 m 90.13 m O 105.13 m

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: A Channel runs along almost parallel to a river ,and they are 2000 ft apart. The water level in the…

Q: Find the flow rate in m'/sec/m at right angles to the cross section shown through the permeable soil…

Q: 7.7 A sand layer of the cross-sectional area shown in Fig. 7.27 has been determined to exist for a…

A: Given data Hydraulic conductivity of sand (k)= 2.8m/day Since Length of the levee is 180 m Then…

Q: 29.A confined aquifer 25.0m thick has two monitoring wells spaced 400m apart along the direction of…

A: The given data is: Thickness of aquifer (b) = 25 m Distance between wells = 400 m Difference in…

Q: The water table in an unconfined aquifer was at 10m below ground level. The bottom of this…

A: Transmissibility, T = KH K - hydraulic conductivity H - aquifer thickness of water bearing material…

Q: A permeable layer that is undertain by an impervious layer skopes at 5 degrees to the horirontal.…

Q: 6). Suppose an unconfined aquifer lies over a confined aquifer as shown in the figure w. Determine…

Q: An artifical recharge pond is located in a sandy area (Kv = 10 m/day; porosity = 30%). The pond…

A: Given data: Coefficient of permeability, kv=10 m/day Porosity=30% Water level above sandy bottom=5.5…

Q: Soil in a field has three layers. Each has a thickness of 3m, 4m, and 3m, from top layer to bottom…

A: H1=300cm H2=400cm H3=300cm

Q: Concrete dam H₂ H₂ Sandy layer Impervious rock L Figure 7.30 Given: upstream water level, H₂ = 16 m;…

Q: Assume a chemical solvent, which is denser than water is spilled into the reservoir. How many days…

A: Given:- The thickness of the silty sand stratum = 3.2 m The hydraulic conductivity of the stratum =…

Q: A 3.2 meter thick silty sand stratum intersects one side of a reservoir. The stratum has a hydraulic…

Q: e of the aquifer is 31 feet, and the elevation of the water in the canal above the base of the ifer…

Q: A permeability pumping test was carried out in a confined aquifer with the piezometric level before…

Q: A constant - head permeameter as in Figure Q5 has a sample of medium - grained sand 15 cm in length…

Q: An earthen dam is constructed on a horizontal, impermeable bedrock layer. The distance from the…

Question

Q6/a: A soil of two layers has a
hydraulic conductivity of 8(cm/day)
for the first layer, and 2.5(m/day) for
the second layer. There is a boundary
level which separate the two layers
and the location of the boundary is
after the first layer. The drain is
installed on the second layer at a
distance of 3.2 m from the
impervious layer. The total depth of
the second layer is 5m. The depth of
water table from drain level is 2.5m,
the recharge is 2.7(cm/day), and drain
wetted parameter 0.3m. Find drain
spacing using simplified Hooghoudt -
Ernst Equation.
85.13 m
O90.13 m
O 105.13 m
none of these

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Given information

VIEW

Step 2: To find drain spacing

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

A silty-sand aquifer has a hydraulic conductivity of 10-4 cm/s. Two piezometers are located 300 m apart and indicate groundwater elevations of 12m and 10m above a datum. The porosity of the aquifer is 0.30. (a) What is the specific discharge in this aquifer? (b) What is the maximum velocity that a salt tracer would move in this aquifer? (c) Assuming that the aquifer is 8 m in depth, what is the discharge per meter perpendicular to the water flow?
2. The following description is correct ( ).A. the denser the grid in the flow network, the smaller the hydraulic gradientB. two points on the same equipotential line, the pore water pressure is always the sameC. the same flow network, any two adjacent equipotential line between the potential energy difference is equalD. The direction of the infiltration flow rate is the direction normal to the flow line 3. In the triaxial shear test, the test that keeps the pore pressure of the soil sample at zero throughout the process from the application of the circumferential pressure until the soil sample is damaged is ( ).A. Unconsolidated undrained test B. Consolidated drained testC. Solidification without drainage test D. Solidification fast shear test
An earthen dam is constructed on an impermeable bedrock layer. It is 123m across (i.e., the distance from the water in the reservoir to the tailwaters below the dam is 123m). The average hydraulic conductivity of the material used in the dam construction is 1.33 m/d. The water in the reservoir behind the dam is 18.5 m deep and the tailwaters below the dam are 4.6 m deep. Compute the volume of water that seeps from the reservoir, through the dam, and into the tailwaters per 100-m-wide strip of the dam in cubic meters per day.
4. A confined horizontal aquifer of 20 m thickness and permeability K = 22 m/day, connects two reservoirs M and N situated 2 km apart. The elevations of the water surface in the reservoirs M and N measured from the top of aquifer are 30 m & 10 m respectively. If the reservoir M is polluted by a contaminant suddenly, how long will it take the contaminant to reach the reservoir. N. Assume the porosity of aquifer n=0.26
A sand layer of the cross-sectional area shown in Fig. ?-b (page 2) has been determined to exist for a 500-m length of the levee. The hydraulic conductivity of the sand layer is 2.3 m/day. Determine the quantity of water which flows into the ditch in m3/hr.