Shoring Systems
Definition (1 mark)
Shoring is a temporary structure used to support unsafe walls, structures, or excavations to prevent collapse during construction or repair work.
Types of Shoring Systems and Their Suitability (2.5–3 marks)
1. Raking Shoring
- Inclined supports (rakers) are placed against a wall.
- Transfers load from the wall to the ground.
👉 Suitability:
- When a wall is weak or bulging
- During repair of existing walls
- Where ground space is available for rakers
2. Flying Shoring
- Horizontal supports provided between two parallel walls.
- No support from the ground.
👉 Suitability:
- When adjacent buildings need support
- When the space between buildings must be kept clear (e.g., roads, passages)
3. Dead Shoring
- Vertical supports (props) are used to carry loads.
- Used to transfer load from upper parts while lower parts are altered.
👉 Suitability:
- During removal of lower walls or foundations
- For making openings in walls
- When rebuilding or altering structural elements
Key Concept
- Shoring systems are selected based on type of structure, available space, and nature of work.
Conclusion (1 mark)
Different types of shoring—raking, flying, and dead shoring—are used according to site conditions to ensure safety and stability of structures during construction or repair.
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