  # The ratio of base width ‘b’ to height ‘h’ of an elementary profile of a gravity dam from ‘no tension’ consideration is given by Where G = specific gravity of dam material K = uplift pressure intensity μ = coefficient of friction

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Updated on: September 25th, 2023 (a) 1/√G – K

(b) 1/ (G – K)u

(c) 1

(d) 1/√ (G2 – K2)

The ratio of base width ‘b’ to height ‘h’ of an elementary profile of a gravity dam from ‘no tension’ consideration is given by 1/√G – K. Check the detailed explanation related to the ratio of base width to height of a gravity dam from ‘no tension’ consideration below.

### Ratio of Base Width to Height of a Gravity Dam from ‘No Tension’ Consideration

Elementary Profile of Dam: A gravity dam’s theoretical cross-section has a basic profile when it is simply being affected by the three principal forces of self-weight, water pressure, and uplift pressure. Additionally, the elementary profile has no freeboard and zero top width.

Base width for no tension at the heel is given by b/H=1/√ (G-K)

Where,

• G=specific gravity of the material
• H=height of the water level at an upstream end
• K = coefficient of uplift pressure

Summary:

## The ratio of base width ‘b’ to height ‘h’ of an elementary profile of a gravity dam from ‘no tension’ consideration is given by Where G = specific gravity of dam material K = uplift pressure intensity μ = coefficient of friction (a) 1/√G – K (b) 1/ (G – K)u (c) 1 (d) 1/√ (G2 – K2)

1/√G – K is the ratio of base width to height of an elementary profile of a gravity dam from ‘no tension’ consideration. The explanation for the same has been illustrated in this page above.

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