Retailing walls are walls designed to for restraining soil to slopes that are not natural. They help to retain soils between two places of uneven elevations. They are made in different places. They are made in places to allow for severe engineering and shaping to serve other purposes like hillside farming. A retaining wall may also be made in regions with undesirable slopes.
These walls come in many types. Common examples are gravity, cantilever, anchored, and piling walls. Their purpose is supporting a wedge of soil. The retained soil tends to shift downslope because of gravitational pull. As such, the design and construction must be done in a way as to counteract this tendency. Gravitational pull results in lateral earth pressure in the supported material. How much pressure is generated varies with the angle of friction and cohesive strength of retained material.
The mass of gravity walls play a major role in their ability to resist pressure they get exposed to. They are made heavy using concrete and stones. Incorporation of batter setback helps to improve stability. They may be constructed in a way as to lean towards the load they support. Dry-stacked varieties are made flexible with flexible footings when they are made in frost prone region.
Most retaining walls constructed during the early years of the 20th century were of the gravity variety. Their construction was done using big masses of concrete and stone. Those that are being constructed in modern times are made of composite materials. Major construction materials include crib walls, soil-nailed walls, and gabions. Construction of gabions is done using stacked steel wire baskets which are filled with rocks.
The construction of cantilevered retaining walls is done from internal stems made from mortared masonry, steel-reinforced, and cast-in-place concrete. The front may be buttressed in some situations. For additional strength to resist heavy loads, the front side may comprise of counterfort. Buttresses are made to resemble wing walls and are installed perpendicularly to the trend of the main wall. Compared to gravity walls, cantilevered walls consume less construction material.
Tight spaces and soils that are soft are suitable with sheet pile retaining walls. This variety is made from various materials including vinyl, wood planks, and steel, which are driven underground. About two thirds of the material stands above the ground while a third is driven underground. The measurement of material driven underground and the one remaining above may be varied depending on the situation.
Construction of bored pile walls involves assembling sequences of bored piles. Excess soil on the site of construction is excavated first. Many techniques are employed in the construction process including reinforcing beams, earth anchors, shotcrete reinforcement layer, and soil enhancement operations. Bored pile walls and sheet piling walls can be constructed in the same location. Bored pile walls are preferred if noise and vibration levels are not supposed to be very high.
A lot of evolution has occurred in construction styles. The methods of reinforcing the walls are also many and diversified. Some of the commonly used retention methods employed are cellular confinement, soil-strengthening, soil nailing, and gabion meshes.
These walls come in many types. Common examples are gravity, cantilever, anchored, and piling walls. Their purpose is supporting a wedge of soil. The retained soil tends to shift downslope because of gravitational pull. As such, the design and construction must be done in a way as to counteract this tendency. Gravitational pull results in lateral earth pressure in the supported material. How much pressure is generated varies with the angle of friction and cohesive strength of retained material.
The mass of gravity walls play a major role in their ability to resist pressure they get exposed to. They are made heavy using concrete and stones. Incorporation of batter setback helps to improve stability. They may be constructed in a way as to lean towards the load they support. Dry-stacked varieties are made flexible with flexible footings when they are made in frost prone region.
Most retaining walls constructed during the early years of the 20th century were of the gravity variety. Their construction was done using big masses of concrete and stone. Those that are being constructed in modern times are made of composite materials. Major construction materials include crib walls, soil-nailed walls, and gabions. Construction of gabions is done using stacked steel wire baskets which are filled with rocks.
The construction of cantilevered retaining walls is done from internal stems made from mortared masonry, steel-reinforced, and cast-in-place concrete. The front may be buttressed in some situations. For additional strength to resist heavy loads, the front side may comprise of counterfort. Buttresses are made to resemble wing walls and are installed perpendicularly to the trend of the main wall. Compared to gravity walls, cantilevered walls consume less construction material.
Tight spaces and soils that are soft are suitable with sheet pile retaining walls. This variety is made from various materials including vinyl, wood planks, and steel, which are driven underground. About two thirds of the material stands above the ground while a third is driven underground. The measurement of material driven underground and the one remaining above may be varied depending on the situation.
Construction of bored pile walls involves assembling sequences of bored piles. Excess soil on the site of construction is excavated first. Many techniques are employed in the construction process including reinforcing beams, earth anchors, shotcrete reinforcement layer, and soil enhancement operations. Bored pile walls and sheet piling walls can be constructed in the same location. Bored pile walls are preferred if noise and vibration levels are not supposed to be very high.
A lot of evolution has occurred in construction styles. The methods of reinforcing the walls are also many and diversified. Some of the commonly used retention methods employed are cellular confinement, soil-strengthening, soil nailing, and gabion meshes.
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