2. Use the Green-Ampt method to evaluate the infiltrationrate and cumulative infiltration depth for clay loam at 1-hrup to 5-hr (1-hr increment) from the beginning ofinfiltration. The effective saturation is 30% (A), 45% (B),60% (C). Compare and make conclusion for the resultsof A, B and C.TimeInfiltration rateInfiltration depth cmhrcm/hr12345 Soil classSandLoamy sandSandy loamLoamTable 7.4.1 Green-Ampt Infiltration Parameters for Various Soil Classes*Wetting frontsoil suctionhead y (cm)4.95(0.97-25.36)PorositynSilt loamSandy clay loamClay loamSilty clay loamSandy claySilty clayClay0.437(0.374-0.500)0.437(0.363-0.506)0.453(0.351-0.555)0.463Effectiveporosity0₂0.417(0.354-0.480)0.401(0.329-0.473)0.412(0.283-0.541)0.434(0.334-0.534)0.486(0.394-0.578)0.3306.13(0.235-0.425)0.309(0.279-0.501)0.432(0347-0.517)0.321(0.207-0.435)0.423(1.35-27.94)11.01(2.67-45.47)8.89HydraulicconductivityK (cm/h)11.782.99(0.375-0.551)(1.33-59.38)0.50116.68(0.420-0.582)(2.92-95.39)0.39821.85(0.332-0.464)(4.42-108.0)0.46420.88(0.409-0.519)(4.79-91.10)0.47127.30(0.418-0.524)(5.67-131.50)0.43023.90(0.370-0.490)(4.08-140.2)29.220.479(0.425-0.533)(0.334-0.512)(6.13-139.4)0.4750.38531.63(0.427-0.523)(0.269-0.501)(6.39-156.5)* The numbers in parentheses below each parameter are one standard deviation around the parameter value given.1.090.340.650.150.100.100.060.050.03

Note:- I have calculated the values for 1 hr only, similarly the values for time up to 5 hr can be…

2. Use the Green-Ampt method to evaluate the infiltration rate and cumulative infiltration depth for clay loam at 1-hr up to 5-hr (1-hr increment) from the beginning of infiltration. The effective saturation is 30% (A), 45% (B), 60% (C). Compare and make conclusion for the results of A, B and C. Time Infiltration rate Infiltration depth cm hr cm/hr 1 2 3 4 5

2. Use the Green-Ampt method to evaluate the infiltration rate and cumulative infiltration depth for clay loam at 1-hr up to 5-hr (1-hr increment) from the beginning of infiltration. The effective saturation is 30% (A), 45% (B), 60% (C). Compare and make conclusion for the results of A, B and C. Time Infiltration rate Infiltration depth cm hr cm/hr 1 2 3 4 5

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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Question

2. Use the Green-Ampt method to evaluate the infiltration
rate and cumulative infiltration depth for clay loam at 1-hr
up to 5-hr (1-hr increment) from the beginning of
infiltration. The effective saturation is 30% (A), 45% (B),
60% (C). Compare and make conclusion for the results
of A, B and C.
Time
Infiltration rate
Infiltration depth cm
hr
cm/hr
1
2
3
4
5

Soil class
Sand
Loamy sand
Sandy loam
Loam
Table 7.4.1 Green-Ampt Infiltration Parameters for Various Soil Classes*
Wetting front
soil suction
head y (cm)
4.95
(0.97-25.36)
Porosity
n
Silt loam
Sandy clay loam
Clay loam
Silty clay loam
Sandy clay
Silty clay
Clay
0.437
(0.374-0.500)
0.437
(0.363-0.506)
0.453
(0.351-0.555)
0.463
Effective
porosity
0₂
0.417
(0.354-0.480)
0.401
(0.329-0.473)
0.412
(0.283-0.541)
0.434
(0.334-0.534)
0.486
(0.394-0.578)
0.330
6.13
(0.235-0.425)
0.309
(0.279-0.501)
0.432
(0347-0.517)
0.321
(0.207-0.435)
0.423
(1.35-27.94)
11.01
(2.67-45.47)
8.89
Hydraulic
conductivity
K (cm/h)
11.78
2.99
(0.375-0.551)
(1.33-59.38)
0.501
16.68
(0.420-0.582)
(2.92-95.39)
0.398
21.85
(0.332-0.464)
(4.42-108.0)
0.464
20.88
(0.409-0.519)
(4.79-91.10)
0.471
27.30
(0.418-0.524)
(5.67-131.50)
0.430
23.90
(0.370-0.490)
(4.08-140.2)
29.22
0.479
(0.425-0.533)
(0.334-0.512)
(6.13-139.4)
0.475
0.385
31.63
(0.427-0.523)
(0.269-0.501)
(6.39-156.5)
* The numbers in parentheses below each parameter are one standard deviation around the parameter value given.
1.09
0.34
0.65
0.15
0.10
0.10
0.06
0.05
0.03

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