Timber Retaining Wall Tiebacks

Make the trench about 8 inches deep.

Timber retaining wall tiebacks.

This retaining wall does not need unwieldy tie backs dug back into the slope like many of the 4x4 timber retaining walls. Excavate the bottom of the slope to create a level base for the wall. The wall is assumed to be located in the christchurch port hills. Dig a foundation trench for the first row of timbers image 3.

Set one end of each tieback on the second course of timbers the other end on the crosspiece. Yet there is another type of wood retaining wall that uses lighter weight dimensional pressure treated lumber. Drive spikes into the holes attaching the tiebacks to the deadmen and the 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.

Anchors for retaining walls. Connect the stakes with a string and adjust until it is level images 1 and 2. Install one dead man every 6 to 8 feet around the entire wall. The base of the retaining wall should be half the wall s height.

Make adjustments as needed to level and square the deadmen and tiebacks. The following design assumptions were made. The wall is assumed to be protecting a levelled dwelling platform with a steep 20 degree hill slope above. Tieback walls are comparatively much simpler to design than the other types of retaining walls.

Fasten the dead man to the retaining wall with two landscaping screws. 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. After installing the third course of timbers make a t shape dead man tie back from two short lengths of landscaping timber.

Dig out a t shape trench into the hillside behind the wall and lay in the dead man. Bore two 3 8 inch pilot holes through each tieback and deadman for a 10 inch landscape spike. 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. 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.

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