BBS (Bar Bending Schedule) of Retaining Wall | Estimate of Retaining Wall | Volume Calculation Hindi

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BBS (Bar Bending Schedule) of Retaining Wall | Estimate of Retaining Wall | Volume Calculation in urdu/Hindi, quantity/estimate of retaining wall, concrete volume calculation of retaining wall

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What is RETAINING WALL:

A retaining wall is a structure that retains (holds back) any material (usually earth) and prevents it from sliding or eroding away. It is designed so that to resist the material pressure of the material that it is holding back.

Types of Retaining Walls:

An earth retaining structure can be considered to have the following types:

Gravity Walls
Reinforced Gravity Walls
Concrete Cantilever retaining wall
Counter-fort / Buttressed retaining wall
Precast concrete retaining wall
Prestressed retaining wall
Brick
Brick Masonry retaining wall
Stone
Reinforced Soil Walls
Reinforced Soil
Soil Nailing
Hybrid System
Anchored Earth
Tailed Gabion
Tailed Concrete Block
Miscellaneous

Gravity Retaining Walls

It is that type of retaining wall Retaining Wall Cross section Design that relies on their huge weight to retain the material behind it and achieve stability against failures. Gravity Retaining Wall can be constructed from concrete, stone or even brick masonry. Gravity retaining walls are much thicker in section. Geometry of these walls also help them to maintain the stability. Mass concrete walls are suitable for retained heights of up to 3 m. The cross section shape of the wall is affected by stability, the use of space in front of the wall, the required wall appearance and the method of construction.

Reinforced Retaining Walls

Reinforced concrete and reinforced masonry walls on spread foundations are gravity structures in which the stability against overturning is provided by the weight of the wall and reinforcement bars in the wall. The following are the main types of wall:

Concrete Cantilever retaining wall

A cantilever retaining wall is one that consists of a wall which is connected to foundation. A cantilever wall holds back a significant amount of soil, so it must be well engineered. They are the most common type used as retaining walls. Cantilever wall rest on a slab foundation. This slab foundation is also loaded by back-fill and thus the weight of the back-fill and surcharge also stabilizes the wall against overturning and sliding.

Counter-fort / Buttressed retaining wall

Counterfort walls are cantilever walls strengthened with counter forts monolithic with the back of the wall slab and base slab. The counter-forts act as tension stiffeners and connect the wall slab and the base to reduce the bending and shearing stresses. To reduce the bending moments in vertical walls of great height, counterforts are used, spaced at distances from each other equal to or slightly larger than one-half of the height Counter forts are used for high walls with heights greater than 8 to 12 m.

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