How close can I dig to a footing?

Assuming a stabile native soil, the general rule of thumb for excavating near an existing footing is to excavate a depth below the bottom of the footing no more than the distance between the edge of the excavation and the edge of the footing.

How deep should a column footing be?

12″deep
A filled core column or poured concrete column should be placed full height to the belt course (ring beam) at each door jamb. This reinforced concrete footing is constructed monolithically with the floor slab. It consists of a series of slab thickenings under the walls with a minimum 12″deep downstand on the perimeter.

What is a spread column footing?

Spread footings are used to support a foundation or set of piers below a building. Spread footing extends the life of a building by minimizing structural damage. Footings must be designed to carry the column loads and transmit them to the soil safely. · Spread footings may be circular, square, or rectangular.

How close can you dig next to house footings?

As long as your foundation is structurally secure, you can dig right beside it without compromising its integrity — until you reach the footing. Potential problems with the dig include trench collapse and the unintended disturbance of utility lines or pipes.

What is the size of column footing?

Column footing size for 1 storey (G+0) building:- for 1 storey (G+0) house or in simple ground floor building, general thumb rule, using standard 9″ thick walls, we recommended size of column footing should be 3.5’×3.5’×3.5′ (1m x 1m×1m) for isolated footing shallow foundation in gravel and sand soil with higher …

What is foundation column?

The foundation base of the column is large to support the column of the building. This type of foundation distributes the weight placed on the column through a more extensive area, thus preventing the columns from sinking into the ground.

What are footings and foundations?

Footings are an important part of foundation construction. They are typically made of concrete with rebar reinforcement that has been poured into an excavated trench. The purpose of footings is to support the foundation and prevent settling. Footings are especially important in areas with troublesome soils.

Where is spread footing used?

Spread footings are normally used under individual columns of buildings and bridge piers. They are economical to use and are applicable for any soil conditions where the bearing capacity for the applied loads is adequate.