The primary purpose of the retaining wall is to provide ground support without any stability problems such as overturning, sliding or structural failure. The water table, earth fill and surcharge are critical in retaining wall design. Difficulties may occur when the pressure of the earth is higher,and it may tip over. Generally, retaining walls are categorised into four types. The list below explains the classification of the four retaining walls.
1 – Gravity retaining wall
Gravityretaining walls – retaining-wall-builder-darwin.com.auare massive,andthey rely solely on the weight to be able to stand up. In designing this retaining wall, you should consider and test the sliding, bearing and overturning forces. This sort of retaining wall is evident in dams or pure dykes.
2 – Pile retaining wall
Pile retaining wall is another type in which collections are driven so deep into the earth that the high force which attempts to push the wall over is held back. It uses counter force to negate the peak force and cease it from tipping over. This type of fence is usually used in both temporary and permanent works as the piled walls offer high stiffness retaining elements which afford substantial excavation depths with almost no disruption to surrounding structures or properties.
3 – Cantilever retaining walls
It is a retaining wall which reinforces of concrete. This wall is composing of thin stem and base slab. The base of this cantilever retaining wall categorisesinto two parts known as the heel and the toe. The heels location is on the bottom under the backfill. It does use only minimal concrete compared to retaining walls though it needs more careful construction and design. It is considered economic that can reach up to 25ft. High. And these walls can both be precast in factory or form in site.
4 – Anchored retaining walls
For those high retaining walls, deep cable rods or wires are managed deep sideways into the earth; then the bottom is filled with concrete to produce an “anchor”. Itmade known as tiebacks. They function when a thinner retaining wall is needed,or space is restrained to install other kinds of retaining walls which are very effectual tolosing soils over solid rocks. Anchored retaining walls employs in lots of highway construction departments where it is used to keep rocks from falling on roads unintentionally or by accidents.
In guaranteeing the stability of retaining walls – retaining-wall-builder-darwin.com.au, here are lists of conditions or requirements you must achieve:
- The wall should be structurally competent in resisting the force applied to it.
- It shouldbe rightly proportionthat it will not get overturned by the lateral force.
- The wall should be secure from consideration of sliding, etc. the wall should not hang by the lateral pressure.
- The walls weight together with the pressure resulting from the earth force acting on it should not strain its foundation to an exceptional value than the safe bearing capacity of the soil.
Averting accumulation of water behind a retaining wall is essential. The backing material should importantly suitably drain by providing weep holes.Long masonry retaining walls shouldgive expansion joints situated at 6 to 9m apart.Weep holes may be provided to lessen or prevent water pressure.