Shoring
At GRND we will ensure we choose the right shoring type and material for your project.
Shoring is the process of supporting the walls of a trench or hole with beams, plates, or other supports. It is usually done to prevent the collapse of the sides of the trench or hole and to provide a stable work environment. Shoring can be done with a variety of materials, including wood, steel, concrete and plastic.
There are a number of factors to consider when choosing the type of shoring to use, including the type of soil, the depth of the excavation, the water table and the load on the excavation.
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Shoring Materials
Wood
Wood shoring is one of the most common types of shoring. It is made from wooden beams or planks that are placed vertically in the trench or hole. The beams are then connected together with horizontal wood to create a frame.
It is relatively easy to install and remove, and it is also one of the most cost-effective shoring options. However, it is not suitable for all types of soil and may not be strong enough to support heavy loads.
Steel
Steel shoring is made from steel beams or plates that are placed vertically in the trench or hole. The beams are then connected together with horizontal steel members to create a frame.
It is more expensive than wood shoring, but it is stronger and more durable. It is also more resistant to water and chemicals, making it a good choice for a project in wet or polluted areas.
Concrete
Concrete shoring is made from concrete blocks or panels that are placed vertically in the trench or hole. To construct the frame, horizontal steel members are used to link the blocks.
It is the strongest and most durable type of shoring, but it is also the most expensive. It is not suitable for all types of soil and can be considered permanent, because it is hard to remove once it has been installed.
Types of Shoring
There are three main types of shoring:
- Raking shoring
- Flying shoring
- Dead shoring
Raking Shoring
Raking shoring is used to support the walls of an excavation that slopes inward (towards the center of the excavation). It consists of a series of beams or plates that are placed at an angle so that they lean against the sides of the trench or hole.
Flying Shoring
Dead Shoring
Dead shoring is used to support the walls of an excavation project that is vertical (perpendicular to the ground). It consists of a series of beams or plates that are placed horizontally between two rows of vertical supports.
The horizontal members are then connected to the vertical supports with cables or rods. Dead shoring is the strongest type of shoring, but it is also the most expensive.
Shoring Services FAQ
What is the Shoring Depth?
The depth of the excavation will determine the type of shoring required. Shallow excavations (less than 4 feet deep) can usually be supported with wood or steel shoring. Deep excavations (more than 20 feet deep) will require concrete shoring.
What is the Water Table in Shoring?
The water table is the level at which the groundwater is found. If the water table is high, there is a risk that the water will flood the excavation. This can cause the shoring to collapse and can also create a safety hazard for workers. It is necessary to take appropriate measures to avoid this.