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پکیج جامع آباکوس ویژه رشته مکانیک
پکیج جامع آباکوس ژئوتکنیک و عمران
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Comparison between stress within the single-layer soil and multi-layer soil Abaqus

This example been chosen from Example 3.7 Sam Helwany book

In this example, we intend to simulate the vertical stress in a multi-layer soil and single-layer soil caused by a circular loading in the Abaqus software

  The geometric shape of soil has been considered in form of a cylinder with a height of 50 m and diameter of 100 m

The loading area is a circle and a pressure equal to 10 K Pascal is applied to it

Increase of stress within the single layer soil from Abaqus software
Increase of stress within the single layer soil from Sam Helwany book
Comparison between Abaqus results and Sam Helwany book results
Comparison between stress within the single-layer soil and multi-layer soil

By comparing these two diagrams , the effect of Asphalt layer and the Base layer will be observed clearly

 The Asphalt layer and the Base layer absorb the damaging stress and only a small fraction of this stress will be transferred to the sub-base layer and the softer soil layer

Actually , the Asphalt layer will act as a shield , protecting the softer layers against the stress due to repeated traffic loads