Problem 2. A concrete (% = 155 lb/ft³) dam impounds water (7)width of 6 ft and height of 35 ft.= 62.4 lb/ft³) and has a topa Determine the factor of safety with respect to overturning about the dam toe.b Determine the location of the resultant. Would tension occur at the dam base?6 ft35 ftH₁ = 30 ft24 ft

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Answered: Problem 2. A concrete (% = 155 lb/ft³)…

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter7: Settlement Of Shallow Foundations

Section: Chapter Questions

Problem 7.2P: A planned flexible load area (see Figure P7.2) is to be 3 m × 4.6 m and carries a uniformly...

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varies uniformly from full Hyu between dam and foundation soil is 0.40. Which of the following most nearly gives the factor of safety against slidling? 12 m A. 1.22 1 m 5m A. 2.56 4m 9m A. 154.52 kPa 4m 2 m 8m 3m B. 1.56 7.) A concrete dam retaining water is shown in the figure. The specific weight of concrete is 24 kN/m3. Assume hydrostatic uplift varies uniformly from full hydrostatic pressure at the heel of the dam to zero at the toe and that the coefficient of friction between dam and foundation soil is 0.40. Determine the factor of safety against overturning. C. 2.31 B. 315.61 kPa C. 2.12 B. 1.89 8.) A concrete dam retaining water is shown in the figure. The specific weight of concrete is 24 kN/m3. Assume hydrostatic uplift varies uniformly from full hydrostatic pressure at the heel of the dam to zero at the toe and that the coefficient of friction between dam and foundation soil is 0.40. Determine the maximum pressure on the foundation. D. 1.89 C. 281.63 kPa D. 3.14 D. 241.89 kPa
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section A concrete (y = 155 lb/ft³) dam cross section impounds water and is comprised of two rectangular sections. Use a unit width in the analysis. a) What would be the minimum height h that provides a factor of safety equal to 2.0 against overturning at the toe when H₁ = 22.5 ft? The tailwater H₂ = 0. Hpool = 1/2-H2 W = Concrete Volume.. Ye U = 1/2 (H₁+H2) L N=W-U cool bood bolga eN = (-ΣMc) /Nbnow one lad W /Ν b) Determine the location of the resultant on the dam base. Would tension occur on any portion of the dam base? c) Using the previous answer and USGS procedures, what would be the factor of safety with respect to sliding if the underlying rock has c = 900 PSF and > = 44°? 8 ft 8 ft 25 ft H₁ = 22.5 ft h
gives a cross section of a concrete dam. The subsoil is anisotropic and has permeabilities kh = 0.8 x 10 in./sec and kv= 2.0 x 10 in./sec. Find the rate of flow beneath the dam per foot length of the dam. And the factor of safety against piping if void ratio of soil= 0.68 and Gs= 2.7. 32 ft 3 ft ky k₁ 55 ft Concrete dam TAVAY 557 KN Kin + TAVAS imisel. 275-21 AWAW
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1. A masonry dam of trapezoidal cross section, with one face vertical, has a thickness of 2 ft at the top and 10 ft at the bottom. It is 22 ft high and has a horizontal base. The vertical face is subjected to water pressure, the water standing 15 ft above the base. The weight of the masonry is 150 lb per cu ft. Where will the resultant pressure intersect the base, and what will be the intensity of pressure at the heel and the toe assuming: (a) that there is no hydrostatic uplift; (b) that there is hydrostatic uplift which varies uniformly form that due to a full head of 15 ft at the heel to zero at the toe.
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The safe allowable stress on the foundation of a gravity dam is 8 N/mm2. If the specific gravity of the dam material is 2.38, the limiting height of the gravity dam will be? isty itw
A dam 4 m on top, 18 m at the bottom and 25 m high contains water 20 m deep on its vertical side. Neglecting uplift pressure, what is the stress at the heel? Wt. of concrete is 2200 kg/m³ a. 39 773 kg/m²b. 38 000 kg/m²c. 43 452 kg/m²d. 34 414 kg/m²

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