Question 3 Soil Compactiona) What are the factors that influence compaction of soil?b) In order to solve the problems of traffic jam through Town P, an embankment of 5 m highand 2 km long is proposed to be constructed to provide the roadway in a low land area.The embankment has a slope of 1 horizontal to 2 vertical (1H: 2V) on both sides and mustbe 12 m wide on its crown to provide 4 lanes. During the construction of the embankment,the selected borrow soil fill material has to be compacted at its maximum dry unit weight.-12 m-5mCross section of the embankmentThe results of standard proctor tests conducted on the fill material during the preliminaryinvestigation are as follows:Bulk density (kg/m') 1840 2050 2160 2190 2180 21506.2 8.0Water content (%)9.3 10.2 12.1 13.6i. Plot the compaction curve of the soil material.ii. Obtain the maximum dry unit weight with its corresponding water content and degreeof saturation given that the specific gravity of the soil, Gs is 2.67.iii. On the same graph, plot the curve for 0% air voids and 5% air voids.2 Hint: Use the formula below for moisture contents from 8% - 16% with intervals of 2%.Formula;AGYYa=(1-100 G,m+1A: air voids content, m: moisturecontent.iv. Determine the dry density for a 95% relative compaction and obtain the range ofmoisture contents required to achieve this level of compaction.

The process of increasing the soil's dry density by lowering air voids or air content in the soil is…

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Question 3 Soil Compaction a) What are the factors that influence compaction of soil?

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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Hint: Use the formula below for moisture contents from 8% - 16% with intervals of 2%.
Formula;
AGY
Ya=(1-
100 G,m+1
A: air voids content, m: moisture
content.
iv. Determine the dry density for a 95% relative compaction and obtain the range of
moisture contents required to achieve this level of compaction.

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