After the construction of aconcrete retaining wall, backfill material from a nearbyborrow pit was brought intothe excavation behind the wallExcavationGround leveland compacted to a final voidratio of 0.8. Given that the soilCompactedSoils fromborrow pit(e = 1.1)backfillin the borrow pit has void ratioof 1.1. Given that the borrow pitsoil has a moisture content of(e = 0.8)Concreteretainingwall11% and Gs = 2.7, determinea. Moist unit weight of theborrow soilb. Degree of saturation ofthe borrow soilc. Moist unit weight of thecompacted backfill

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After the construction of a concrete retaining wall, back fill 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. Given that the borrow pit soil has a moisture content of 11% and Gs = 2.7, determine a. Moist unit weight of the borrow soil Excavation Ground level Compacted backfill Soils from borrow pit (e = 1.1) (e = 0.8) Concrete retaining wall b. Degree of saturation of the borrow soil c. Moist unit weight of the compacted backfill

After the construction of a concrete retaining wall, back fill 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. Given that the borrow pit soil has a moisture content of 11% and Gs = 2.7, determine a. Moist unit weight of the borrow soil Excavation Ground level Compacted backfill Soils from borrow pit (e = 1.1) (e = 0.8) Concrete retaining wall b. Degree of saturation of the borrow soil c. Moist unit weight of the compacted backfill

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

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.

Question

After the construction of a
concrete retaining wall, back
fill material from a nearby
borrow pit was brought into
the excavation behind the wall
Excavation
Ground level
and compacted to a final void
ratio of 0.8. Given that the soil
Compacted
Soils from
borrow pit
(e = 1.1)
backfill
in the borrow pit has void ratio
of 1.1. Given that the borrow pit
soil has a moisture content of
(e = 0.8)
Concrete
retaining
wall
11% and Gs = 2.7, determine
a. Moist unit weight of the
borrow soil
b. Degree of saturation of
the borrow soil
c. Moist unit weight of the
compacted backfill

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For a normally consolidated clay layer in the field, the following values are given: Thickness of clay layer = 8.5 ft ● Void ratio = 0.8 ● ● ● ● Compression index (CC) = 0.28 Average effective pressure on the clay layer is 2650 lb/ft² Additional Overburden Pressure is 970 lb/ft² Secondary compression index (Ca) is 0.02 Determine the total consolidation settlement considering primary and secondary settlement. Select the correct response: 2.6425" 2.5631" 2.8866" 2.3856"