Common Basement Excavation Techniques

It is more than just digging a large hole in the ground to pour concrete. Planning is essential. The right basement excavation techniques by Greenbar Excavation will ensure that your building is supported.

It is a big project and requires a lot of knowledge. Whether you are looking for new construction or an addition to an existing house, or if your foundation is damaged, an expert can help. They will most likely choose one of these methods to excavate the basement.

1. Full Open-Cut Method

This method can be used in two ways: cantilever and sloped. The sloped method is more cost-effective than the cantilever because it doesn’t require extra support to hold the foundation walls. The cantilever method, on the other hand, requires retaining walls to make sure the sides don’t fall during excavation. The cantilever method, although more costly, is preferred for deeper excavations.

2. Bracing Method

This method requires that you install horizontal, straight struts in front of the retaining walls. These struts will keep the material pressure off your retaining walls. Bracing systems need a corner, end, and corner posts as well as struts, wales, for support. The weight of the excavated earth will be transferred to the ruts in the wale. The end and corner braces are used to reduce the width of your wale without increasing your strut count. Strut failure is prevented by the center posts.

3. Anchored Method

Anchors will be required to counter the earth’s pressure during excavation if you opt for the anchored method. The bonded portion of an anchor exerts a force against the earth’s pressure. The pressure is transferred to the anchor head by the unbonded portion. The anchor head then transfers the weight to the retaining walls. The strength of the soil determines the strength of the anchor. Higher soil strength equals greater anchoring force.

4. Method of the Island

The island method is the best way to build your basement foundation. The excavation center must be dug first if you want to use the island approach. Next, you will place the excavated material close to the retaining walls. This will create a slope. Your excavated structure will form the center of the site. Between the main structure and the retaining walls, ruts will be necessary.

Which basement excavation technique is right for you? The conditions of your situation, your budget, and the time available will determine which method is best. To find the best method for you, it is important to consult Greenbar Excavation today!

This post was written by Tanner Brown. Tanner is the Owner and operator of Greenbar Excavation. Greenbar Excavation is a fully licensed, insured, and accredited Excavation company based in Prineville, Oregon. Greenbar Excavation is one of the top companies for Septic pumping in Prineville Oregon. Don’t look further, go with the company with your best interest in mind!