This subject is Water Resources and Coastal Engineering ●●●●●●There are two cases to consider.Neglect earthquake and ice pressure forces.Stresses are computed at the base of the dam. The stresses are normal stresses at heeland toe and shear stress about a horizontal plane at the base.The unit of stress is N/m²The computed factors of safety and stresses must be labeled as safe or unsafe.The hydrostatic pressure at the heel has the same value of uplift pressure at the samepoint.A vertical hydrostatic force must be considered for the sloping upstream face.Divide the dam into volumes for easier computation of weights and centers of gravity.Consider the weights and moments of these portions of the dam separately to easilytrack errors in the computations. PROBLEMAnalyze the whole section of a concrete gravity dam shown below. The specific weightof the concrete is 23.5 kN/m³ and specific weight of water is 9.81 kN/m³. When theheight of the water is 3m, the factor of safety against sliding is 2.50. Determine theminimum coefficient of friction between the dam and the foundation. Using this coef-ficient, compute the factor of safety against sliding, factor of safety against overturning,normal stresses at the heel and toe, and shear stress at the base of the dam when thereservoir is full. Assume there is hydrostatic uplift that varies uniformly from full hy-drostatic head at the heel of the dam to zero at the toe for both cases. Neglect earth-quake forces.3 m6 m2 m5m

Weight = unit weight of material * Area of portion * 1 m lengthW1 = weight of triangular stemW1 =…

Analyze the whole section of a concrete gravity dam shown below. The specific weight of the concrete is 23.5 kN/m³ and specific weight of water is 9.81 kN/m³. When the height of the water is 3m, the factor of safety against sliding is 2.50. Determine the minimum coefficient of friction between the dam and the foundation. Using this coef- ficient, compute the factor of safety against sliding, factor of safety against overturning, normal stresses at the heel and toe, and shear stress at the base of the dam when the reservoir is full. Assume there is hydrostatic uplift that varies uniformly from full hy- drostatic head at the heel of the dam to zero at the toe for both cases. Neglect earth- quake forces.

Analyze the whole section of a concrete gravity dam shown below. The specific weight of the concrete is 23.5 kN/m³ and specific weight of water is 9.81 kN/m³. When the height of the water is 3m, the factor of safety against sliding is 2.50. Determine the minimum coefficient of friction between the dam and the foundation. Using this coef- ficient, compute the factor of safety against sliding, factor of safety against overturning, normal stresses at the heel and toe, and shear stress at the base of the dam when the reservoir is full. Assume there is hydrostatic uplift that varies uniformly from full hy- drostatic head at the heel of the dam to zero at the toe for both cases. Neglect earth- quake forces.

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter14: Sheet-pile Walls

Section: Chapter Questions

Problem 14.11P

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