Question

In a simple deck slab buttress dam of a given height, the buttress spacing can be increased by increasing the upstream slope.

(a) True

(b) False

I have been asked this question in exam.

The doubt is from Buttress Dam in portion Arch and Buttress Dams of Irrigation Engineering

Answer 1

Right option is (a) True

For explanation I would say: The economical spacing of buttresses is governed to a very large extent by the values of the upstream slope of the dam which is given by the master curve. The lower values of upstream slope lesser than 47° are not available on the master curve which shows that lower values will not prove economical for the project.