You are building a retaining wall 40 feet long. You need a footer 12 inches wide. You need 6 inches of crushed stone in the bottom and then 2 inches of stone dust. On top of the stone dust you need a 6-inch stone you are using for the wall. The top of the stone should be even with the ground. a. How deep must the footer be? b. How many cubic feet of dirt were removed? c. How many cubic feet of crushed stone are needed? d. How many cubic feet of stone dust are needed? e. How many 15-inch-wide stones are needed for the footer?
You are building a retaining wall 40 feet long. You need a footer 12 inches wide. You need 6 inches of crushed stone in the bottom and then 2 inches of stone dust. On top of the stone dust you need a 6-inch stone you are using for the wall. The top of the stone should be even with the ground. a. How deep must the footer be? b. How many cubic feet of dirt were removed? c. How many cubic feet of crushed stone are needed? d. How many cubic feet of stone dust are needed? e. How many 15-inch-wide stones are needed for the footer?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:. You are building a retaining wall 40 feet long.
You need a footer 12 inches wide. You need
6 inches of crushed stone in the bottom and
then 2 inches of stone dust. On top of the
stone dust you need a 6-inch stone you are
using for the wall. The top of the stone should
be even with the ground.
a. How deep must the footer be?
b. How many cubic feet of dirt were removed?
c. How many cubic feet of crushed stone are
needed?
d. How many cubic feet of stone dust are needed?
e. How many 15-inch-wide stones are needed
for the footer?
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