Timber Retaining Wall Tiebacks
Anchors for retaining walls.
Timber retaining wall tiebacks. Connect the stakes with a string and adjust until it is level images 1 and 2. Download the pdf for application instructions. Drilled pier walls these are walls that rest on top of a cap beam or grade beam which is in turn supported by a series of drilled piers that are spaced uniformly. Yet there is another type of wood retaining wall that uses lighter weight dimensional pressure treated lumber.
This retaining wall does not need unwieldy tie backs dug back into the slope like many of the 4x4 timber retaining walls. The base of the retaining wall should be half the wall s height. Drive spikes into the holes attaching the tiebacks to the deadmen and the wall. Dig out a t shape trench into the hillside behind the wall and lay in the dead man.
The wall is assumed to be located in the christchurch port hills. Make adjustments as needed to level and square the deadmen and tiebacks. Customers successfully use our heavy duty easy to install and load tested bullets and arrowhead anchors using drive rods and quickvise for securing retaining walls including our anchor models 3 60qv 3 120qv 4st 60qv 4st 120qv. And it doesn t rely on sheer weight to hold back the slope as do masonry walls.
Then stake the dead man to the soil with two rebar stakes. Tiebacks and tiedowns tiebacks are used to provide the lateral resisting force for many of the excavation support systems and retaining walls that schnabel builds. Tieback walls are comparatively much simpler to design than the other types of retaining walls. Dig a foundation trench for the first row of timbers image 3.
Make the trench about 8 inches deep. Excavate the bottom of the slope to create a level base for the wall. They are constructed by grouting a high strength steel bar or strand bundle into the soil or rock behind the failure surface of the retaining wall. The following design assumptions were made.
Install one dead man every 6 to 8 feet around the entire wall. The example wall is shown in figure x 2 and consists of a 4 m high timber pole wall with ground anchor tie backs. After installing the third course of timbers make a t shape dead man tie back from two short lengths of landscaping timber. Fasten the dead man to the retaining wall with two landscaping screws.
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