Retaining Walls – Vancouver BC
Retaining walls are constructed in places where extra support is needed to prevent the earth from sliding downhill. Retaining walls must be built strong enough to hold back the soil behind them. Many factors come into play when deciding how to build a retaining wall. If the retaining wall has to support a heavy building, it will be built much different than if the purpose of the retaining wall is to simply level a yard.
Properly built retaining walls feature solid, compacted base material and good drainage. Concrete walls offer a clean finish that will enhance the look of your yard.It is critical to hire a professional to construct or repair retaining walls. It is easy to miss what goes on behind and below the wall when you do not have the proper training to know what to look for. A poorly built wall can lean, separate or fall, causing huge or irreparable damage.
Here are some of the various types of Retaining Walls…
Standard wall type that holds the earth mainly through its own weight. Can pivot and topple relatively easily, as the internal leverage of the earth pressure is very high.
Using long piles, this wall is fixed by soil on both sides of its lower length. If the piles themselves can resist the
The cantilever wall ( wich may also extend in the other direction ) uses the same earth pressure trying to topple it to stabilize itself with a second lever arm.
This wall keeps itself from toppling by having cables driven into the soil or rock, fixed by expanding anchors ( can be combined with other types of walls ).
Concrete Block Walls
Concrete blocks can be used as a retaining wall however they are used more often as a load bearing wall. Concrete block walls often require significant footing and loads of rebar. When labor is this intensive, professionals may pour a concrete wall
Segmental Retaining Walls
Segmental retaining walls (SRWs) are constructed as gravity retaining walls or reinforced soil retaining walls. These modular block retaining walls consist of dry-cast concrete units that are dry stacked and placed without mortar.
Poured Concrete Retaining Walls
Poured concrete walls require extreme skill and precision. Wall thickness in relation to wall height is very important. A reinforced wall, either poured concrete or concrete block, always contains some form of reinforcing steel, which dramatically increases the overall strength characteristics of masonry or concrete. Walls are either reinforced or non-reinforced. There are two forces at play with foundation walls. One force is a downward gravity load force created by the load placed upon the wall. The other is a sideways force caused by the backfill or earth which is placed against the wall.
A gabion wall is made from a large galvanized steel basket or cage filled with rocks. These are mostly used in industrial areas or by roads and bridges. They are free-draining walls that allow water to run right through them.
Never cut corners when it comes to the installation or repair of retaining walls. Call the concrete specialists at Pell-Builder to book a home or site consultation.We help you manage water runoff and prevent slides. Get quality advice and quality work.