Soil Mechanics 2 - Assignment Example

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Soil Mechanics 2

Quiet often soil engineers encounter situations where the sites selected for construction is not suitable, because of too low bearing capacity or differential settlements which exceeds the tolerable limits. Higher void in cohesive soils decreases the inter particle attraction, where as in non cohesive soils results in low relative density, low angle of internal friction and high permeability. This in turn means that lower shear strength, low bearing capacity, and easy movement of water.
By lowering the void ratio in a soil deposit, the soil particles get closer which leads to increase in shearing strength i.e. the bearing capacity of the soil and minimize the probable settlement as well as the differential settlement.
Soils for foundation can be altered to conform to desired characteristics. Based on soil and the ground water conditions on the construction site, soil improvement techniques are designed by taking care of feasibility and economy. Soil stabilization is one such technique which increase strength, increase or decrease permeability, reduces compressibility, improve stability, or decrease heave due to frost or swelling.
Mechanical Stabilization is a method by which soil properties are improved by changing its gradation. Hence it is also called as granular stabilization. Sometimes to achieve the desired grading, two or more types of natural soil are mixed with binders. ...
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Q: Describe briefly soil improvement techniques that are commonly used to enhance the shear strength parameters and to minimize the settlement of a soil. Discuss and evaluate one of these techniques. It is recommended to support your study with an example or case history.
Author : abernhard

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