Analysis of annual flood series of a river yielded a sample mean of 1000 m/s and standard deviation of 600 m/s. Estimate the design flood of a structure on this river to provide 90% assurance that the structure will not fail in the next 50 years. Use Gumbel's method and assume the sample size to be very large.

Analysis of annual flood series of a river yielded a sample mean of 1000 m/s and standard deviation of 600 m/s. Estimate the design flood of a structure on this river to provide 90% assurance that the structure will not fail in the next 50 years. Use Gumbel's method and assume the sample size to be very large.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter17: Soil Engineering For Highway Design

Section: Chapter Questions

Problem 22P

See similar textbooks

Similar questions

Describe Stress Path for Tests in Consolidated–Drained Conditions
4. Write the Rouse's equation for distribution of suspended sediment in the vertical of a channel and lebel all the terms. In a wide alluvial channel having suspended sediment load, the depth of flow is 2.8 m. If the suspended load sample indicated a concentration of 700 ppm at a point 30 cm below water surface, estimate the concentration at a point 10 cm above the bed in the same vertical. The exponent in Rouse's equation can be assumed as 0.4.
Write the Rouse's equation for distribution of Suspended sediment in the vertical of a channel and label all the terms. In a wide alluvial channel having suspended sediment load, the depth of flow is 2.8 m. If a suspended load sampler indicated concentration of 700 ppm at a point 30 cm below water surface, estimate the concentration at a point 10 cm above the bed in the same vertical. The exponent in Rouse's equation can be assumedsas 0.4. CS Scanned witA
Question 5An earth dam is proposed for a site consisting of a homogeneous stiff clay, as shown in the Fig. below. You, the geotechnical engineer, are required to specify soil strength tests to determine the stability of the dam. One of the critical situations is the possible failure of the dam by a rotational slip plane in the stiff clay. What laboratory strength tests would you specify and why?Question 5 An earth dam is proposed for a site consisting of a homogeneous stiff clay, as shown in the Fig. below. You, the geotechnical engineer, are required to specify soil strength tests to determine the stability of the dam. One of the critical situations is the possible failure of the dam by a rotational slip plane in the stiff clay. What laboratory strength tests would you specify and why?
The standard penetration test results of a sand deposit at a certain site are given below in tabular form. The groundwater table in located at a depth of 2 m below the ground surface. The dry and saturated unit weights of sand are 17 kN/m³ and 19.0 kN/m', respectively. For an expected 10.8 earthquake magnitude M = 6 and maximum acceleration amax = 0.1 g, will liquefaction occur? Depth (m) NF (blows/30 cm) 1.5 8 3.0 7 4.5 12 6.0 15 7.5 17 9.0 17
If the void ratio and discharge velocity for soil is 0.5 and 6 × 10-7 m/s respectively, what is the value of seepage velocity (m/s)? X
If the void ratio and discharge velocity for soil is 0.5 and 6x10-7 m/s respectively, what is the value of seepage velocity (m/s)?
A cylindrical sediment core sample with the dimensions: diameter = 10[cm] and length= 30[cm] is placed in a Darcy experimental setup (see figure below) and fully re-saturated. At steady state the following information was recorded: hydraulic heads h₁ = 15.6[cm] and h₂9.3[cm], flow Q = 2[ml/min]. cross-sectional area, A sand Datum: 0 Please calculate the following and provide answers with three significant figures: a) Hydraulic conductivity (K) in the unit m/day. K = [m/day] b) Intrinsic permeability (k) assuming that the fluid used in the experiment is pure water at 25°C Report result using scientific notation and in the unit of m². k= c) Average linear pore water velocity (u) in m/s. Assume that the effective porosity (n) is half the total porosity of 0.3. Report the result in the unit m/d [m/d] UL = c
An SPT was performed at a depth of 7 m in sand of unit weight 20.40 kN/m3. The N-value was found to be 22. Compute the corrected N-value by the two methods presented in this chapter
At a planned construction site, subsurface sampling indicates that the soil wet unit weight is 19.5 kN/m3. Determine the effective vertical stress at a depth of 5 m if: (a) The groundwater table is very deep. (b) If the groundwater table is at surface. (c) If the groundwater table is at 3 m below ground surface. Adjust your answer to TWO decimal places.
Qus - If the void ratio and discharge velocity for soil is 0.5 and 6 * 10^-7 * m / s respectively, what is the value of seepage velocity (m/s)?
Q.4) Figure shows a clean sand having a permeability of 0.075 cm/s and a void ratio of 0.62 placed in a horizontal flow apparatus. If the cross-sectional area of the horizontal pipe is 100 cm² and the length (L) of the soil sample is 0.50 m. compute the followings. a) Superficial velocity (v), b) Seepage velocity (v.) when the change in head (Ah) equals 100 cm c) Discharge Q H Ah soil cross-sectional area A 2