HYDRAULICS - Dams

Toe

the pivot if the dam overturns

Toe

Located in the downstream side

Toe

Located at the side of the dam where there is no water or where there is a lower water level

Hydrostatic Uplift

Pertains to the pressure of water acting on the base of the dam

Triangular

The shape of the hydrostatic uplift of Ry is located near the toe

Rectangular

The shape of the hydrostatic uplift of Ry is located in the middle

Trapezoidal

The shape of the hydrostatic uplift of Ry is located near the heel

Foundation Pressure

Pertains to pressure of soil to the dam

where Ry is the closest

Location of the qmax

Zero

Value of Amin if e > B/6

Factor of safety against overturning

Ratio of resisting moment (RO) and overturning moment (OM)

Factor of safety against sliding

Coefficient of friction multiplied by RY, divided by arc

Summation of Fx

Value of Rx

Summation of Fay

Value of Ry

2Ry / 3x

Value of qmax if e > B/6

Rx/B (1 (+ or -) 6e/B)

Value of maximum and minimum pressure intensity on the base of e <= B/6

Rx/B

Shear stress formula