Question No. 03To determine the infiltration capacity of a soil, the following experiments were made with aring infiltrometer having a diameter of 20 cm. Water was applied to maintain a constant waterlevel inside the ring.Time (min)Water Applied (ml)Calculate the infiltration capacity, accumulated infiltration, and determine the parameters inthe Horton equation with the help of the observations given in the above Table.0-10 10-20 20-30 30-40 40-50 50-6060-70 70-80 80-901056950393330282727

Horton's equation fp= fc+(fo-fc) e-kt here, fp= infiltration capacity at t fo= cumulative…

To determine the infiltration capacity of a soil, the following experiments were made with a ring infiltrometer having a diameter of 20 cm. Water was applied to maintain a constant water level inside the ring. Time (min) Water Applied (ml) 10-20 20-30 | 30-40 50 Calculate the infiltration capacity, accumulated infiltration, and determine the parameters in the Horton equation with the help of the observations given in the above Table. 40-50 50-60 60-70| 70-80 | 80-90 33 0-10 105 69 39 30 28 27 27

To determine the infiltration capacity of a soil, the following experiments were made with a ring infiltrometer having a diameter of 20 cm. Water was applied to maintain a constant water level inside the ring. Time (min) Water Applied (ml) 10-20 20-30 | 30-40 50 Calculate the infiltration capacity, accumulated infiltration, and determine the parameters in the Horton equation with the help of the observations given in the above Table. 40-50 50-60 60-70| 70-80 | 80-90 33 0-10 105 69 39 30 28 27 27

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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Answer Question 7
A falling head permeability test was run on a soil sample 9.60 cm in diameter and 10 cm long. The head at the start was 70 cm. The coefficient of permeability of the soil was found to be 5 x 10-6 cm/s. The diameter of the standpipe was 1 cm. What is the rate of flow at the start of the test? Select the correct response: 6.08 cm/hr 11.73 cm/hr 15.83 cm3/hr 9.12 cm/hr
A falling head hydraulic conductivity test is performed on a sample of soil. The standpipe having a diameter 0.35 cm is observed and it takes 80 seconds for the water to drop by 70 cm from an initial hydraulic head of 90 cm. The sample has a length of 22 cm, and a diameter of 5 cm. Compute the rate of flow of water in the soil (in cm/s).
For a falling head permeability test, the following are given: Length of specimen = 375 mm Hydraulic conductivity = 1.72 m/min. Area of specimen = 1875 mm2 What should be the area of the standpipe for the head drop from 625 mm to 300 mm in 480 seconds? Select the correct response: 88.63 mm2 56.24 mm2 93.74 mm2 53.18 mm2
The figure shows the layers of soil in a tube that is 100mm x 100 mm in cross section. Water is supplied to maintain a constant head difference of 450 mm across the sample. The hydraulic conductivity of the soils in the direction of flow through them are given below. Compute the equivalent hydraulic conductivity in m/hr. Water supply h=450 mm Out flow Direction of flow Soil Soil Soil A B 200 200 200 mm mm mm K, = 2 x 10-4 cm/s KR = 3.7 x 10-2 cm/s Kc = 1.2 x 10 -5 cm/s Select one: a. 0.002124 b. 0.002412 c. 0.001224 d. 0.004221
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Question 2 * The permeameter in a permeability test setup involves a soil sample 200 mm diameter and a length of 30 mm. The height of water is kept constant at 400 mm. In a duration of 4 min, water was collected in the graduated flask having a volume of 420 cu. cm. Determine the following. Flow Rate o Hydraulic gradient o Hydraulic conductivity
The attached figure shows the soil sample prepared and setup for constant head permeability test. If the permeability of the soil is 4.5 x 10-3 cm/sec, what is the required time to collect 100 ml of outflow water under the steady state condition? 40 cm Soil in the pipe with internal diameter 20 cm Outflow collection 50 cm 40⁰ 90 cm -Datum- 10 cm
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