Stress Increase in Soils

Stress Increase in Soils

We have looked at bearing capacity of the soil in the previous section but checking only that is not enough. We must also make sure that, even if the soil can bear the pressure, it will not settle too much.  Before calculating settlement amount in soil however, we must first know the stresses in soil. […]

Angle of Internal Friction

Angle of Internal Friction

Think of this post as a direct continuation of the previous two posts of this series, shear strength of soil and lateral earth pressure. Now let’s present another very important characteristic of soil, the angle of internal friction, which we briefly mentioned already before in those sections. Let’s consider a block resting on a surface, […]

Stress vs Strain, Elasticity Modulus

Stress vs Strain, Elasticity Modulus

After discussing stress and strength, the next important item to know is the relation of stress versus deformation. Imagine a material which is somehow perfectly rigid. In other words, it never deforms, no matter how large, even infinite, load you apply on it. In nature no such material exists. Every material, no matter how strong, […]

Mohr’s Circle

Mohr’s Circle

In many cases, when performing structural or geotechnical calculations, it is important to know the possible effects of stresses that act on materials not from just one direction, as we saw above, but from multiple directions, which happens quite a lot. The effect of stresses acting from multiple directions will cause the materials to fail […]

Forces

Forces

Forces can be as: Compressive Tensile Shear All loads acting on structures are a combination of these forces. In addition, a force can also create a turning affect around a point, which can be of two types, as: Bending Moment (or simply “Moment” because it is very frequent) Torsional Moment (os simply “Torsion”, because it […]

What does Geotechnical Engineering deal with?

In this post, I will try to broadly classify what topics fall under Geotechnical Engineering, one of the 5 main branches of Civil Engineering. We can first break Geotechnical Engineering into three main topics as: Soil Mechanics Foundation Engineering Retaining Walls, Stabilized Slopes, Deep Excavations Now, when I say break, it is only for grouping […]