What is Shoring?
Shoring is the construction of a temporary support structure to hold up a building while it is being repaired. This is done to prevent collapse of the building during repair work. Shoring is usually constructed around the perimeter of the building to provide lateral stability.
The term shoring is often applied to structures that are already under pressure, such as buildings leaning over a riverbank or a cliff face. In those cases, the shoring provides additional support to keep the structure upright.
In some cases, shoring is built to support a structure that is in danger of falling down. For example, if a bridge is about to fall into the water because of damage caused by high winds, shoring might be erected to shore up the bridge.
Types of Shoring and Its Uses | The Structural World
1. H or I-Beam Shoring
H or I-beam shoring is the most commonly used method of shoring up a trench. This method uses either I or H shaped sectional steel plates called girders. These girders are placed side by side and driven into the ground. A concrete slab is poured over the girders to form the wall.
The advantages of H or I-beams include ease of installation, low cost, and high strength. However, there are some disadvantages too. For example, you must use special equipment to install the girders. Also, the girders cannot be installed in soft soils such as clay or sand because they tend to sink. In addition, the girders are heavy, making them difficult to handle.
2. Secant Pile Shoring
Secant pile shoring is a method of construction where 2 piles are placed perpendicular to each other and reinforced with rebar. Each pile is filled with concrete up to the top of the reinforcement bar and then the second pile is installed. Once the concrete hardens, it forms a continuous wall.
The secant pile system is often used in deep excavation projects because it allows for quick and easy access to the bottom of the hole.
3. Contiguous Pile Shoring
Contiguous pile shoring is one of the most common types of pile shoring systems used in construction projects. In this system, piles are installed in close proximity to each other and the gap between the piles is filled with soil. The face of the pile is nearly touching or tangent with the adjacent pile. This method is best suited for low ground water tables.
The advantages of this method include:
1. Easy to construct
2. Low cost
3. Can be easily removed
4. Can be used for both vertical and horizontal applications.
5. Can be used for retaining walls up to 20m wide.
4. Sheet Piles
Sheet piling is one of the most common methods of shoreline protection. This method uses large sheets of metal called “sheets”. These are usually driven into the ground and held in place by being tied to another pile. They are often referred to as “soldier piles”, because they look like soldiers standing guard over the site. Sheets are typically driven into the ground about 3 feet apart, depending on the size of the project. If you want to make sure that the sheeting stays put, you’ll need to tie it down. For example, if you’re building a dock, you might attach chains to the bottom of each sheet and run them up along the length of the dock. You could even use a chain attached to the top of the sheet and a second chain running across the top of the dock.
You can also use anchors to hold the sheets in place. Anchors come in many different shapes and sizes. One popular anchor is a wedge shape. Wedges are designed to fit into holes drilled into the side of the sheet pile. Once wedged in, the anchor holds the sheet securely in place.
If you don’t want to drill holes into the sheet pile, you can simply drive wooden stakes into the ground and connect them to the sheet pile with wire rope.
5. Diaphragm Walls
Diaphragm walls are one of the most common methods of construction for retaining walls. They are constructed in situ and are usually built over a trench dug into the ground. This method allows you to build a large retaining wall without having to dig down very far. A diaphragm wall consists of a steel frame filled with concrete. These walls are often used for temporary purposes like building a temporary wall around a site where it is unsafe to dig deeper.