Problem 4: After the construction of a concrete retaining wall, backfill material from a nearby borrow pit was brought into the excavation behind the wall and compacted to a final void ratio of 0.8. Given that the soil in the borrow pit has void ratio of 1.1, determine the volume of borrow material needed to fully compact backfill, knowing that the total volume of the backfill is 30 m³. Excavation Ground level Compacted backfill Soils from borrow pit (e = 0.8) Concrete (e = 1.1) retaining wall

Problem 4: After the construction of a concrete retaining wall, backfill material from a nearby borrow pit was brought into the excavation behind the wall and compacted to a final void ratio of 0.8. Given that the soil in the borrow pit has void ratio of 1.1, determine the volume of borrow material needed to fully compact backfill, knowing that the total volume of the backfill is 30 m³. Excavation Ground level Compacted backfill Soils from borrow pit (e = 0.8) Concrete (e = 1.1) retaining wall

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Issues During Construction

Construction is the combination of art, science, and engineering to build buildings, bridges, structures, roadways, highways. airports, etc. The construction business is a challenging and promising business worldwide with certain risk factors involved. Increasing demand for mankind leads to the growth of several construction companies which specialize in different construction projects. These construction companies initiate their construction process under certain agreements and time durations called the construction contract.

Question

Problem 4:
After the construction of a concrete retaining wall, backfill material from a nearby borrow pit was brought into
the excavation behind the wall and compacted to a final void ratio of 0.8. Given that the soil in the borrow pit has
void ratio of 1.1, determine the volume of borrow material needed to fully compact backfill, knowing that the
total volume of the backfill is 30 m³.
Excavation
Ground level
Compacted
Soils from
borrow pit
(e = 1.1)
backfill
(e = 0.8)
Concrete
retaining
wall

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A fill having volume of 150000 m³ is to be constructed at a void ratio of 0.8. The borrow pit solid has a void ratio of 1.4. The volume of soil required to be excavated from the borrow pit will be (a) 150000 m³ (c) 250000 m³ (b) 200000 m³ (d) 300000 m³
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