What Is Shoring? | What does Shoring Mean? | What Is the Use of Shoring? | Type of Shoring (2023)

What Is Shoring? | What does Shoring Mean? | What Is the Use of Shoring? | Type of Shoring (1)

What Is Shoring?

Shoring is a temporary structure used for construction. When a structure such as a building, ship, structure, etc., is in danger of collapsing or during repairs, a method like shoring temporarily supports the building, ship, and trench.

This method is used to support an unprotected wall through the use of incline members called rackers.

What does Shoring Mean?

Shoring is a form of support for the inclined member, which is usually used as a temporary. Used for various purposes during repair or original construction of buildings and during excavation. Such as temporary support may be needed to relieve loads on a masonry wall.

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What Is the Use of Shoring?

Shoring is used in different situations as follows,

  1. Shoring is used to support the stability of construction when a risk-like situation has arisen due to uneven settlement at its foundation.
  2. Demolition of the side building uses shoring to stabilize the existing building.
  3. Construction stability is at risk due to poor workmen ship and old construction.
  4. The structure is unsafe due to ongoing repairs in the existing construction.
  5. In addition, shoring is used to support the structure during improvements such as the demolition of old walls and perforation.

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Type of Shoring

Each Shoring system has its own specificity to perform its function. And it depends on the principles of different situations according to the function of shoring.

Various Shoring components include rackers or inclined members, wall plates, needles, cleats, bracing, sole plates, etc.

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The inclined member with the base plate is set on the ground, and the racker is bent at 30 angles. It helps to fix the member inclined by cleats and dogs on the ground.

The type of shoring are classified as follows,

  • Dead Shoring
  • Raking Shoring
  • Flying Shoring

1. Dead Shores

What Is Shoring? | What does Shoring Mean? | What Is the Use of Shoring? | Type of Shoring (2)

Dead Shoring is used to support dead loads of a structure.

Dead Shoring is a system of shoring that works to support dead loads such as walls and ceilings, floors, etc. This type of shoring provides wall openings and rebuilds the wall by removing defective old load bearings. Or it supports the structure to form a new wall by removing the lower part of the wall.

The dead shore is made up of different parts. There is a precise arrangement of beams and posts as required so that the weight of the structure above it can be supported and can be safely transferred to the ground at the base.

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When the wall is to be opened, the holes in the wall should be made as per the instructions. So that there is enough space when fixing the beam or girder. This is because the beam is permanently fixed to carry the weight of the structure.

  • Holes are made depending on the type of masonry. Usually varies from 1.2 m to 1.8m center on the wall. A beam called a needle is inserted into these holes, and the needle is supported on both sides of the wall by vertical props at their ends.
  • These vertical props are also called the dead shore. The needle can be made of timber or steel material. And the needle is sufficiently supported as required to carry the load above.
  • The dead shore is fixed to the needle and props position, allowing the workspace to stand on either side of the wall. The props are fixed tightly by a folding wedge at their base. While the junction between the props and the needle is provided strong with the help of dogs.
  • Before starting the demolition work of the building, all the opening spaces of doors, windows, etc., are fixed by a strut. The load walls of the upper floors and roof are well supported by independent shoring.
  • After completing the building work, it is advisable to keep the shoring support for at least seven days before dismantling so that the members created for the structure have enough strength to be self-supporting.

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2. Raking Shores

What Is Shoring? | What does Shoring Mean? | What Is the Use of Shoring? | Type of Shoring (3)

In this method, the inclined member is used to support the wall. This inclined member is known as a raker. The racking shore consists of rakers or inclined members, wall plates, needles, cleats, bracing, and soleplate.

The wall plate is about 20 to 25 cm. Fixed in a vertical position with a wall face 5 cm wide and 5 to 7.5 cm thick. And it is protected by a needle (10 cm x 7.5 cm).

The needle is about 10 cm. Inside is laid in the wall. The needle supports the racker. The wall plate is fixed directly to the wall using nails through the cleats.

The rakers are fixed in such a way against the needle that is in the center. As a result, the racker line meets the wall at floor level. Thus, a racker is fixed to each needle as required.

These rakers are fixed with inter-connected struts to prevent buckling. Then, with the help of an iron dog, the legs of the rackers are fixed on a single base plate embedded in the ground.

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The legs of the rakers are fixed with the help of a hoop iron near the soleplate. Acts to distribute the pressure on the wall evenly through the wall plate.

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Points to Keep in Mind for Raking Shoring in Construction

  1. The length of the racker can be reduced by introducing a rider racker for high-rise buildings.
  2. The rackers should have an incline on the ground by 45 degrees to work more effectively. However, in practice, the angle can vary from 45 to 75 depending on the wall support. But usually, the top racker is kept below 75 degrees.
  3. The rider should be braced properly at intervals as required.
  4. The size of the rackers should be chosen according to the resistance of the maximum force coming through the walls or structure.
  5. In the shoring system, the centerline of the racker and the wall should be at floor level.
  6. The shoring can be supported at a distance of 3 to 4.5 m to cover a longer length.
  7. The inclination on the sole plate must be properly embedded in the ground. And for that, the soleplate should be used in the right section and size.
  8. Wedges should not be used in shoring sole plates. Because it gives way during vibration.

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3. Flying or Horizontal Shores

What Is Shoring? | What does Shoring Mean? | What Is the Use of Shoring? | Type of Shoring (4)

This shoring is used to support two adjacent parallel walls. In which the wall of the central building has become unsafe due to removal or cracking

All the necessary arrangements to support an insecure structure do not reach its support ground in this type of shoring.

The flying shore uses wall plates, needles, cleats, horizontal struts (commonly known as horizontal shores), and inclined struts arranged. It is used in different situations.

Even in this system, the wall plates are protected by a vertical fix against the wall.

(Video) Type of shoring

A double flying shore is used when the distance between the walls is greater. The main advantage of flying shore is that it does not obstruct ground-level traffic for building work.

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What Is Shoring? | What does Shoring Mean? | What Is the Use of Shoring? | Type of Shoring (5)

Points to keep in mind for flying shoring in construction

  1. The centerline of the flying shore and the struts should meet at the floor level of those two buildings.
  2. If the floor level is different then the horizontal shore should be placed between the two-floor level having equal strength.
  3. The struts should be 45 degrees with a horizontal shore. In any case inclination, this strut is held up to 60 degrees with the horizontal shore.
  4. Single shore should be used up to a distance of 9 meters between the walls of two buildings and a double shore system should be used when the distance is more than 9 meters.
  5. Flying shore is included when repairs are carried out in an older building. And should be kept in place until the construction of the new unit of the building is completed.

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What do you mean by shoring? ›

shoring, form of prop or support, usually temporary, that is used during the repair or original construction of buildings and in excavations. Temporary support may be required, for example, to relieve the load on a masonry wall while it is repaired or reinforced.

When should shoring be used? ›

Shoring or shielding is used when the location or depth of the cut makes sloping back to the maximum allowable slope impractical. Shoring systems consist of posts, wales, struts, and sheeting.

What is the purpose of shoring in construction? ›

Shoring is designed to prevent collapse where shielding is only designed to protect workers when collapses occur. Concrete-structure and stone-building shoring, in these cases also referred to as falsework, provides temporary support until the concrete becomes hard and achieves the desired strength to support loads.

What is shoring in OSHA? ›

Shoring (Shoring System): A structure such as a metal hydraulic, mechanical, or timber shoring system that supports the side of an excavation and which is designed to prevent cave-ins. Tabulated Data: Tables and charts approved by Registered Professional Engineer and used to design and construct a protective system.

How do you use shoring in a sentence? ›

How to use shoring in a sentence. MacNutt divided them into gangs and set them to work staying and shoring the remnants of the dam.

Why is it called shoring? ›

Simply put, shoring is a supporting structure that's used during the construction or repair of buildings and other structures to prevent collapse. The term shoring comes from the word shore, meaning a timber or metal prop.

What are the basic types of shoring used in construction work? ›

Shoring systems consist of posts, wales, struts, and sheeting. There are two basic types of shoring, timber and aluminum hydraulic.

Why are shoring and re shoring important in building construction? ›

Reshoring is installed under floors that have been stripped of shoring. Reshoring is utilized to distribute construction loads among several levels or to grade in order that the cast floors will not become overloaded and overstressed.

How many types of shoring are there? ›

There are three types of shoring as discussed below. Dead shoring is used to temporarily support the walls, roofs, floors, etc., by providing horizontal members known as needles. This type of shoring is used to support dead loads that act vertically downwards.

What type of soil can shoring be used with? ›

Manufacturers of shoring equipment have promoted and use in their tabulated data an intermediate Type C-60 soil classification that in the hierarchy falls between Type B and Type C soils. This category is generally accepted within the shoring industry by contractors and those reviewing worker protection plans.

What depth does OSHA require shoring? ›

Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. If less than 5 feet deep, a competent person may determine that a protective system is not required.

What's a shoring problem? ›

Shoring is a construction activity through which the side walls of an excavation are supported. Shoring is governed by regulations stipulated by OSHA in order to protect workers who are working inside an excavation and could be hurt in the case of the collapse of the excavation walls.

What is another word for shoring up? ›

bolster, fortify, buttress, shove up. in the sense of buttress.

How do you use in a way in a sentence? ›

Examples of 'in a way' in a sentence in a way
  1. And in a way it's true. ...
  2. We told the guy on security that we were doing research, which was true in a way. ...
  3. I dress smartly but in a way that is true to my own style. ...
  4. In a way it was true that neither side were good enough to control the Ashes or their destiny.

What material is used for shoring? ›

Types of Shoring Methods

Soil Nails and ShotCrete. Hydraulic Shoring. Pneumatic Shoring. A choice of Timber or Aluminium materials.

What are the advantages of shoring? ›

Enhanced safety

Shoring is required in order to protect the employees who are temporarily working in trenches and holes. A safer working environment is maintained by maintaining the height of the earthen walls and avoiding their collapse.

What is shoring in a trench? ›

Trench shoring is the process of bracing the walls of a trench to prevent collapse and cave-ins. The phrase can also be used as a noun to refer to the materials used in the process. Several methods can be used to shore up a trench.

Is shoring done before excavation? ›

Wherever possible, install the shoring equipment as the excavation proceeds. If there is any delay between digging and shoring, no one should enter the unprotected trench. Trench Boxes are commonly used in open areas that are away from utilities, roadways, and foundations.

What shoring uses air pressure? ›

Pneumatic Shoring

works in a manner similar to hydraulic shoring. The primary difference is that pneumatic shoring uses air pressure in place of hydraulic pressure. A disadvantage to the use of pneumatic shoring is that an air compressor must be on site.

What is the types of shoring? ›

Common shoring methods include: Soldier Pile and Lagging. Pressure / Chemical Grouting. Soil Nails and ShotCrete.

What is the basic type of shoring? ›

There are two basic types of shoring, timber and aluminum hydraulic.

What is the most common type of shoring? ›

One of the most common shoring techniques used today is called H or I-Beam shoring. Another name for this process is soldier pile wall shoring. With this method, prefabricated steel H or I sections are driven or slid and vibrated into holes in the ground.

Where is shoring required? ›

Shoring is Used to Enlarge Walls

Knit walls that need enlargement need to be supported; installing shoring is an ideal way to do that. It makes it easier for openings to be made or enlarged on the wall.

What depth do you need shoring? ›

Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. If less than 5 feet deep, a competent person may determine that a protective system is not required.


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