![]() The drainage and compaction of soil at the base and behind the wall are key to its stability. The design needs to take into consideration the height of the wall, natural soil and water conditions, the materials to construct the wall, and other factors. For DIYers, limiting the block retaining wall to about 3 feet in height and using smaller interlocking blocks is highly advised. This friction, the friction at the base of the wall block, and the soil within the embedment depth at the toe of the base block work to resist the soil pressure tending to push the wall over. The purpose of the geosynthetic is to engage friction with soil behind the wall. So, when the soil below it moves due to frost, the wall moves with it, and back again when the frost is out of the ground. The gravity wall heights shown do not account for seismic loading. The blocks are typically filled with crushed stone. Use the chart below to find the maximum height that your retaining wall can be built before reinforcement is required. One block rests on top of the next and on top of a compacted gravel leveling pad. First, sketch out your interlocking wall on a piece of graph paper. Regardless, it is typically less costly to install than a cast-in-place concrete wall because it does not need to extend to frost depth and the total amount of concrete is less. How to Build an Interlocking Concrete Block Retaining Wall in 10 Steps 1. A 6 high wall would require an excavation site of 3.6 behind the wall for the lower grids. Over 4 feet tall, it needs to be designed with geosynthetics by an Engineer. Taller walls require Geogrid going back 60-75 of the wall height. Up to 4 feet tall (base to top of wall), it can be designed and installed by a qualified landscaper. segmental concrete block) retaining wall may be your best option. Whether you are looking for a lower cost retaining wall to enhance your yard or to support your driveway, the Interlocking Concrete Block (ICB) (a.k.a.
0 Comments
Leave a Reply. |