A trapezoidal masonry dam with vertical upstream face is 6m high, 0.6m at the top and 3m wide at the bottom. Wt of concrete is 23.5 KN/m^3 A. Find the depth of the water on the vertical upstream face if the pressure at the toe is twice the average pressure at the base. B. Using the computed depth of water, compute the hydrostatic uplift force if the uplift varies from full hydrostatic pressure at the heel to zero at the toe C. Compute the factor of safety against sliding if the coef friction on the base is equal to 0.80. Consider

A trapezoidal masonry dam with vertical upstream face is 6m high, 0.6m at the top and 3m wide at the bottom. Wt of concrete is 23.5 KN/m^3 A. Find the depth of the water on the vertical upstream face if the pressure at the toe is twice the average pressure at the base. B. Using the computed depth of water, compute the hydrostatic uplift force if the uplift varies from full hydrostatic pressure at the heel to zero at the toe C. Compute the factor of safety against sliding if the coef friction on the base is equal to 0.80. Consider

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

1. A rectangular dam with base equivalent to 2.5-meters and height equivalent to 6-meters holds water with an upstream height of 4.5-meters. Compute for the factor of safety against sliding and overturning. Unit weight of concrete is 23.54 kN/cu.m. Consider 1 meter length strip. Disregard hydrostatic uplift pressure. The coefficient between the dam and the foundation is 0.4.
7. A vertical rectangular sluice gate at the bottom of the dam is 0.60m wide and 1.8m high and exposed to water pressure on one side corresponding to a head of 15m above its center. Assuming the gate on stem to weigh 2300 N and the coefficient of friction of the gate on runners to be 0.25, find the force necessary to raise it. WA/
Civil engineering -Hydraulics
5. A dam is triangular in cross-section with the upstream face vertical. Water is flushed with the top. The dam is 8m high and 6m wide at the base and weighs 2.4 tons per cubic meter. The coefficient of friction between the base and the foundation is 0.8. Determine (a) maximum and minimum unit pressure on the foundation, and (b) factors of safety against overturning and against sliding. (* 6. A gravity dam of trapezoidal cross section with one face vertical and horizontal base is 22m high
A gravity dam of is 27 m high and has a thickness "x" of 5 m at the top as shown below. Water upstream stands 2 m below the crest of the dam. The specific gravity of masonry is 2.4. a. Find the base width B of the dam. Neglect hydrostatic uplift. b. Determine the factor of safety against sliding and overturning. Neglect hydrostatic uplift. Use u = 0.45 c. Considering uplift pressure to vary uniformly from full hydrostatic pressure at the heel and zero at the toe, find the base width B of the dam. 25 m
NOTE: ANSWER SHOULD BE ON THE CHOICES
A masonry dam with one end face vertical, has a base 3.3 m and 7.2 m high. The vertical face is subjected to water pressure, the (s 2.4) triangular in cross section, water standing 4.5 Neglect hydrostatic uplift. Compute the following: above the base of the dam. a. The vertical reaction of the foundation. b. Distance of the vertical reaction from the heel. c. Factor of safety against overturning.
Define particular volume, specific gravity, and viscosity. Include Newton's law of viscosity as well.
e. unit horizontal shearing stress at the base in kPa
A concrete dam retaining water is shown. Assuming that there is a hydrostatic uplift that varies uniformly with 80% of the hydrostatic head from the heel to zero at the toe, compute for: a. Hydrostatic uplift force, U b. Factor of safety against overturning c. Minimum pressure at the base of the dam Specific weight of concrete = 23.5 kN/m^3 Coefficient of static friction = 0.5 Coefficient of kinetic friction = 0.4 2m 7m Water
1. A masonry dam of trapezoidal cross section, with one face vertical and horizontal base. The dam is 8-m high and has a thickness of 70-cm at the top and 4-m at the bottom. The unit weight of the masonry is 23.450 N/cu.m. What is the depth of water on the vertical side if the resultant force intersects the base at the downstream edge of the middle third. Neglect the hydrostatic uplift.
Determine the sliding factor of safety and the heel and toe stresses for a triangle gravity dam (25m bed width and 20m height) with the following data: (neglect ice force and use e = 1.0m) 7 w=10 Kn/m³, 7 c-24 Kn/m³, s-1.8 Kn/m³, height of silt 2m, hw=0.5m, = 30° and free board 2m.