3) The rainfall gauging station measurements of an 8-hour storm is given below. The initial and limit infiltration capacity of soil is 8,5 mm and 3,75 mm, respectively. (k=0.3) a) Draw the hyetograph of this storm for At=1 hour. b) Draw the standard infiltration curve (Using Horton's equation) for t=1-hour interval. c) Obtain the infiltration rate curve. d) Obtain index. Time, t (hour) Cumulative Rainfall, P (mm) 0 1 0 5 2 10 3 4 17 25 6 7 8 38 40 5 32 36

3) The rainfall gauging station measurements of an 8-hour storm is given below. The initial and limit infiltration capacity of soil is 8,5 mm and 3,75 mm, respectively. (k=0.3) a) Draw the hyetograph of this storm for At=1 hour. b) Draw the standard infiltration curve (Using Horton's equation) for t=1-hour interval. c) Obtain the infiltration rate curve. d) Obtain index. Time, t (hour) Cumulative Rainfall, P (mm) 0 1 0 5 2 10 3 4 17 25 6 7 8 38 40 5 32 36

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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In Horton’s infiltration equation fitted to data from a soil, the initial infiltration capacity is 10 mm/h, final infiltration capacity is 5mm/h and the exponential decay constant is 0.5 h^-1. Assuming the infiltration takes place at capacity rates, the total infiltration depth for a uniform storm of duration 8 hours is A) 80 mm B) 60 mm C) 40 mm D) 90 mm
In Horton's infiltration equation fitted to data from a soil, the initial infiltration capacity is 10 mm/h, final infiltration capacity is 5 mm/h and the exponential decay constant is 0.5 h. Assuming the infiltration takes place at capacity rates, the total infiltration depth for a unifom storm of duration 8 hours is
Question 2: After conduct an experiment, you found that the soil for the watershed have an initial rate of infiltration equal to 1.35 in./hr and a final capacity of 0.3 in./hr. Assuming that the time constant k = 0.4, calculate the soil infiltration capacity at the times 10 min, 15 min, 30 min, 1 hr, 2 hr, 4 hr, and 6 hr using Horton's equation. Infiltration
In Horton's infiltration equation fitted to data from a soil, the initial infiltration capacity is 10 mm/h, final infiltration capacity is 5 mm/h and the exponential decay constant is 0.5 h. Assuming the infiltration takes place at capacity rates, the total infiltration depth for a uniform storm of duration 8 hours is A 80 mm B 60 mm 40 mm 90 mm
In Horton's infiltration equation fitted to data from a soil, the initial infiltration capacity is 10 mm/h, final infiltration capacity is 5 mm/h and the exponential decay constant is 0.5 h-1. Assuming the infiltration takes place at capacity rates, the total infiltration depth for a uniform storm of duration 8 hours is A 40 mm 60 mm 80 mm D 90 mm
In horton’s infiltration fitted to data from a soil, the initial infiltration capacity is 10 mm/h, final infiltration capacity is 5 mm/h and the exponential decay constant is 0.5 h^-1. Assuming the infiltration takes place at capacity rates, the total infiltration depth for a uniform storm of duration 8 hours is a. 40 mm b. 80 mm c. 90 mm
Problem 3.2. Assuming that Horton infiltration Eq. 3.4 is valid, determine the constant infiltration rate if fo = 50 mm/h (2.0 iph), ƒ at 10 min is 13 mm/h (0.5 iph), and k = 12.9. What is the infiltration rate at 20 min?
A catchment soil has a Horton infiltration parameter: f0=240 mm/hr, fc=30 mm/hr and k=0.2 min^-1. Calculate the infiltration rate right after two hours. Assuming a rain of constant intensity of 50 mm/hr occurs and lasts fo 3 hours, calculate the amount of rain that infiltrates into the soil.
The rain gauge measurements of an 8-hour storm are given below. The initial and limit infiltration capacity of soil is (a+2)/2 mm and (a+4)/4 mm, respectively (k=0.3). The variable a is 8. Table: The rain gauge measurements t (hour) 0 1 | 2 | 3 | 4 5 6 7 8 P (mm) 0 8 9 20 30 37 40 42 43 a. Draw the hyetograph of this storm. b. Draw the standard infiltration curve (Using Horton's equation). c. Obtain the infiltration rate curve. d. Calculate total runoff and infiltration depth. e. Obtain o and w indices.
If the rain starts at 8.00PM on 10November 2015, use Horton's Equation to solve for the infiltration capacity of the soil (mm per hat 12:30AM the next day. Given the initial infiltration capacity of the soil is 0.0386 cm per min, the time constant as 0.1018 per hour, and the capacity of soit for hrial infiltration is 0.6683 cm per hour. Detailed solution step by step
The initial infiltration capacity of the soil is 0.0386 cm per min, the time constant as 0.1018 per hour, and the capacity of soil for final infiltration is 0.6683 cm per hour. If the rain starts at 8:00PM on 10November2015, use Horton's Equation to solve for the infiltration capacity of the soil (mm per hr) at 3:12PM the next day.
12. (Horton's equation for infiltration rate, ). One can use Horton's equation to estimate the infiltration rate of water into soil if the rainfall rate exceeds the infiltration rate. The Horton's equation states that: f = fe+ (fo-fc) x e-kt where f is the infiltration rate (cm h:¹), fe is the equilibrium infiltration rate (cm h 1), fo is the initial infiltration rate (cm h:¹), k is an empirical constant (h:¹), and t is time (h). Horton's equation can be integrated to yield an equation that represents the total volume of water that would infiltrate over a given period: V=A₁ [Fxα= 4, 16+ V = A₁ [fx dt = A₁ [lfc + (fo-fc) × e-k¹] x dt = A₂ × [fet + fo=fc (1 - e-*)] 0 where As is the unit area (1 m²) and V is the volume (m³). Sothan loamy sand has the following characteristics: fe= 6.68 cm h¹, fo = 8.81 cm h¹, k = 1.40 h ¹. Assuming the rate of precipitation exceeds the rate of infiltration throughout the storm event. 12.1. Find the infiltration rate at times of 12, 30, 60, and 120 min.…