Installing a freestanding garden retaining wall is quite delightful and can enhance and protect your garden. At certain times garden walls may require a bit more strengthening – like when it is a retaining wall that has been holding back substantial soil, or perhaps it is a remarkably long wall or linked to your home. Retaining walls need to work harder than freestanding walls. Besides supporting their very own weight, they’ve got to stand up against lateral forces as a result of the earth being held. At times that garden soil is flooded with water, which often builds up a terrific force.
Therefore, certain arrangements needs to be made when installing a garden wall:
- Garden wall should have a “batter,” or perhaps pitch so that it leans toward the earth it’s retaining.
- Tie-backs, also referred to as ‘dead-man’ anchors, should be positioned to tie the wall structure into the soil behind the walls.
- Drains have to be laid within the base of the structure to transport water before pressure can accumulate and force against the wall.
- A base of compacted gravel or footing is also required to assist in supporting the wall, in particular when the soil is loose or open to freezing.
When there is no pitch, or the anchors were missing or insufficient, or the drains are becoming obstructed, or maybe if the footing is not firm, a retaining wall can start to shift, settle, or accumulate. Plant roots can increase the pressure too; so does the weight of things added onto the ground surface above and behind the wall (like an outbuilding or parked vehicles).
It does not matter if a retaining wall is made of stone, brick, wood or concrete, it can start to lean. At that point, the property owner has two options: either demolish the walls, re-install drains and then reconstruct, or engage the services of a repair expert.
A specialist can promptly balance the wall and in most cases restore it to the initial position. Foundation repair services are well familiar with renovating foundation walls using similar practices. A technique employed by these contractors having gained recognition is to make use of helical anchors.
Helix-shaped blade is attached to steel shafts to create an anchor that appears much like a giant screw. Cut within the wall surface are holes to fit the blade diameter, through which specialized machines are employed to draw the anchor through the walls into the bank of soil behind. A threaded adaptor that stretches through the wall surface will then be mounted on the rod, and the hole is covered. And lastly, a steel plate is positioned over the threaded rod and anchored with a big nut. The wall is stabilized once this is completed with the ideal number of anchors. In this instance, the nuts may just be steadily tightened to move the wall back into its initial position.
The application of helical anchors to help restore a retaining wall is far more affordable than tearing down the wall structure and starting over again. Moreover, it is significantly less disruptive, most especially when the wall is linked with your driveway.