Sitework consists of the work done in the general area located outside of a structure, that complements the functionality of the structure. For example, when constructing a building, work that will go in or on the area surrounding that building all fall under sitework such as: Underground utilities such as sewer and storm drain systems, […]

Deep Excavations

Excavations can be classified as shallow and deep excavations. Shallow excavations were already discussed in Earthwork section previously, as those are nothing more than regular earth handling operation. Those excavations have no special requirements, as far as retaining any side of excavation. Deep excavations however, require that the sides of the excavations are somehow contained. […]

Stabilized Slopes

Stability of slopes from soil mechanics point of view, were discussed under Soil Mechanics > Soil Strength > Slope Stability section. Here we will describe slope stabilizing measures. Slope Stabilization with tiered excavation: Probably the most straightforward means of stabilizing a slope is to excavate it so that its slope would be reduced. This can […]

Retaining Walls, Stabilized Slopes, Excavations

In the next few posts, we will take a look at: Structures that are made to overcome elevations differences between two adjacent areas, which are called retaining structures, The methods to stabilize slopes (we had discussed the slope stabilization subject before here, as far as the basic theory behind it), Deep excavations, that need special […]

Retaining Structures

Retaining structures, most often called as retaining walls, are made to maintain difference of surface elevation between two sides of the wall, by restraining a certain material on the higher side, so that it does not fall over or slide to the lower side. We see retaining structures everywhere. They can be used to retain […]

Soil Stabilization

Soil stabilization is treating the subgrade material or subbase of a road so that it’s properties are improved. The improved properties are the ones we talked about in the previous section, ground improvement. The difference between soil stabilization and ground improvement is that soil stabilization deals with only improving characteristics of a subbase that will […]

Foundation strengthening and repair methods (Underpinning)

Underpinning methods do not treat the soil, but instead treat an existing foundation, either by modifying or repairing the foundation or by making additions or connections to a foundation. It is done in order to improve the foundation’s load carrying capacity, and transmitting foundation loads to an adequately strong soil layer. So, for existing structures, […]

1 2 3 10