Compute the ponding time (in minutes) and cumulative infiltration at ponding (in centimetres) for a sandy clay loam soil of 25% initial effective saturation (Se) for rainfall intensities of 2 cm/h and 5 cm/h. Note: Calculate the results rounded to the second digit after the decimal point. Hint: A0=(1-Se)×0e

Compute the ponding time (in minutes) and cumulative infiltration at ponding (in centimetres) for a sandy clay loam soil of 25% initial effective saturation (Se) for rainfall intensities of 2 cm/h and 5 cm/h. Note: Calculate the results rounded to the second digit after the decimal point. Hint: A0=(1-Se)×0e

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Please only answer if sure it is correct. will thumbs up if correct!
Q3) Given the equation of infiltration curve for ascertain area given as following: I=1.3+4.2 *exp(-0.0063*t) and t in minute, compute the volume of runoff and Index of rainfall data shown below: Time (hour) 1 3 4 5 Rainfall (mm)6 8.5 12.8 12.2 6.5 3
25. a. none b. 4.62 c. 4.33 d. 4.39 e. 4.57
Please correct answer..
Rapid Sand Filter - Example > Determine the minimum number of rapid sand filters necessary to treat a flow of 20 mgd if the maximum design hydraulic loading is 5 gpm/ft?. Assume the maximum dimension is 24 feet and the L:W = 1.2:1. Note: consider backwashing operation. %3D b. 7 а. 6 с. 8 d. 9
Q1 - Fora (200 x100 km Rectangular catchment are shown below the reciption rain gages: A = 21, B = 31, C = 25, D = 35. E = 30 and F = 28mm By using Thiessen method, find the average preciption? And compute the percentage error for astimation of average praciption? 50
QUESTION 3 (CLO-4] For a particular land the initial and ultimate infiltration rates are (fo) 15 mm/hr and (fc) 1 mm/hr, respectively. If Horton's decay constant (k) is 0.3 hr1, use the Horton's equation to determine the excess rainfall intensity (mm/hr) in the second interval (min 20-40) for the following storm event. Time (min) 0-20 20-40 40-60 Incremental rainfall depth (mm) 12 20 P(20-40) = 34.03 mm/hr P(20-40) = 46.95 mm/hr P(20-40) O P(20-40) = 42.64 mm/hr = 38.33 mm/hr
a. The streamflow from a 500-hectare catchment due to a storm of constant intensity of 27mm/h for four hours can be represented by a triangle in which the peak flow was 25 m3/s. The flow lasted six (6) hours and peaked at two (2) hours. The soil texture is uniform throughout the catchment and when the surface is ponded, its infiltration rate varies according to the Horton equation, with a decay constant, k, of 0.5 h and a maximum infiltration rate, fo, of 24 mm/h. Use the information to determine; the volume of infiltration (mm); the infiltration rate at soil saturation (mm/h); and i. ii. iii. the runoff coefficient of the catchment. iv. State your assumptions.
31
Hello, I need help with this particular question.
3. For a 2 hour, 8 mm/h intensity rainfall, the hydrograph given in Table is observed. The area of watershed is 500 km² Table: Propeller readings Time 0 flow rate (m³/s) 8 2 4 6 14 18 30 8 10 12 45 38 28 14 16 18 20 22 24. 18. 14 10 a) Obtain 2 hour unit - hydrograph for the considered flow section b) Obtain 4 hour unit- hydrograph for considered flow section. c) Obtain the hydrograph of a rainfall with 4 hour duration and 10 mm/h intensity. 24 8 8
For clay soil at a given location parameters of Philip's equation were found as S = 45 cm/hr 0.5, and K = 10 cm/hr. Determine the cumulative infiltration and the infiltration rate at 0.5 hr increments for a 3-hour period. Plot both as functions of time. Assume continuously ponded conditions.