An elephant butte dam approximates a triangle, with a height of 85.40m and upstream face with a slope of 1H:16V and a downstream face with a slope of 2H:3V for the first 61m, and 1H:1V for the last 24.40m down to the base. The depth of the water in the upstream side is about 82.30m. While the depth of water on the downstream side is 24.40m. Assume that the dam weighs 21,540N/m^3. Also, assume the uplift to vary linearly from full hydrostatic pressure at the heel to full hydrostatic pressure at the toe, assume that these uplift pressures only act over 2/3 of the area of the base. Determine the ff. 1. A factor of safety against sliding. Use coefficient of friction =0.75 2.factor of safety against overturning

An elephant butte dam approximates a triangle, with a height of 85.40m and upstream face with a slope of 1H:16V and a downstream face with a slope of 2H:3V for the first 61m, and 1H:1V for the last 24.40m down to the base. The depth of the water in the upstream side is about 82.30m. While the depth of water on the downstream side is 24.40m. Assume that the dam weighs 21,540N/m^3. Also, assume the uplift to vary linearly from full hydrostatic pressure at the heel to full hydrostatic pressure at the toe, assume that these uplift pressures only act over 2/3 of the area of the base. Determine the ff. 1. A factor of safety against sliding. Use coefficient of friction =0.75 2.factor of safety against overturning

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

width of rectangular channel = 3.6 meters discharge = 2.7 m^3/s Assume n = 0.012 What is the critical slope of this wooden flume?
1. A 3.1 – m wide rectangular flume carries water at 5.60 m3/s. The bed slope is 0.00078 and n = 0.010. At a certain section, the depth is 92 cm. a. How far therefrom is the depth 80 cm? b. What is the slope of the egl? c. What is the headloss? 2. A rectangular channel 1.8 m wide conveys water at a depth of 1.2 m. a. What is the velocity of flow if it is laid on a slope of 0.002 and n= 0.012? b. What is the discharge if the channel slopes 0.1° and n = 0.016? Use Kutter’s formula for C. c. What is the velocity of flow if S = 0.000263 and f = 0.02?
For the channel shown assume a = 1m, b = 3m, d = 2m, w = 8m and n = 0.015, what bed slope is required to have a flow of 16m3/s with a depth of flow of 1.5m? (Fig 10.3.6)
A pump draws water from a reservoir A (EL 0m) and lifts it to reservoir B (EL. 80m), the headloss are: From A to point 1=3(?1²/2?) and From point 2 to B= 20 (?2²/2?). Point 1 is before pump and Point 2 is after pump. Point 1 and Point 2 are lying on the same elevation, which is 6m below reservoir A. The pipe connecting reservoir A to pump is 15cm while the pipe connecting pump to reservoir B is 10 cm. If the system flow is 15Lps compute for the following. A)Power output in BTU/min B)Pressure head at point 2 in m C)Power input in lb-ft/s if the pump efficiency is 78%
A trapezoidal clean excavated earth channel with bottom width 5ft, side slopes 3:1 (H:V) and flow depth 1ft needs to discharge 150ft3/s. What should be the bottom slope, S0?
A trapezoidal channel carries a discharge of 2.5 m3/s. Design the section if the slope is 1 in 1200 and the side slopes are 1 in 1. Use Chezy’s formula, C = 55. a.b = 5.93 m; y = 4.8 m b.b = 1.154 m; y = 0.577 m c.b=2.828 m , y= 1.414 m d.b = 0.9 m; y = 1.085 m
At what depth will water flow at 0.25m3/s in a 1.0m diameter concrete pipe (n=0.012) on a slope of 0.0004?
A trapezoidal channel with a bottom width of 5 and slide slopes having a ratio of 3H:1V, conveys water at 19 m3/s. If n = 0.012, what is the critical depth? Answer is 0.936
A 10m Rectangular channel passes a discharge of 2 m³/sec/unit width, longitudinal slope 0.0009, Manning's roughness coefficient, n = 0.03. If this longitudinal slope changes to 0.009, find: 1. Normal depth for the two slopes. No wrong answes please 2. Critical depth
An open channel triangular section has a base of 3m. The side slope of the triangle is 45o from the horizontal on both sides. If S = 2.5/1000 and n = 0.012, determine the discharge in the open channel.
Q6) A rectangular channel 1.2m wide carries 1.13 cumecs at a depth of 850mm under the uniform flow conditions. If a streamlined bridge pier 300mm wide is placed in the middle find the local change in depth. What is the maximum thickness of the pier if there is to be no change in upstream conditions?
Two circular conduits (n=0.025) each 1.5m in diameter, serve to carry the water of a creek through a railroad embankment. When carrying flood discharges both ends of the conduits are submerged. Assuming the same slope of the pressure , what width would be necessary in two equal rectangular sections (n=0.015) and each depth is 1.2m, if they are replace the circular conduits and perform the same service?