Slope Retaining Wall Foundation
Follow the block manufacturer s instructions for wall height limits.
Slope retaining wall foundation. The most important part of any wall is its foundation and if these are out of true you will have a hard job producing a good wall. The process to build a retaining wall on slope can be divided into 10 steps to understand easily. 18 aashto lrfd 8th edition 2018 o highlights. Thoroughly planned and ably performed wall construction will help to ensure the retaining wall s stability.
907 kalanianaole hwy kailua hi 96734 office. Build a retaining wall on slope. Use the stones as a guide to spray paint lines on the ground. 1808 7 2 foundation setback from descending slope surface.
When looking to divert water from the foundation with retaining walls there are a number of types of several types to consider. Design and build your retaining wall to slope at a minimum rate of. O seismic wall corners ballot item. These guidelines are only for light garden walls.
Higher walls and wider bases tend to be stronger. Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding. It has a very interesting and ambiguous installation it is not just a lump of concrete placed in the ground. Oge foundations and retaining walls update june 05 2018.
Foundations on a slope a retaining wall note. Anchor systems hawaii inc. The steps are described below. Retention or retaining walls provide a practical means to make a difficult slope manageable and hold up some amount of soil and vegetation while lending landscape interest.
Each adds a different look to your landscaping. The interlocking retaining wall block can be used to build walls up to 24 to 36 inches high depending on the size of the block. Layout the concrete stones that will be used where the wall will be built. On slopes o formerly no convergence of n c to 5 14 or drained value for flat slope o now use tables for rc bc o q n sloping ground rc bc q n.
A wall that leans into the soil it retains is less likely to be pushed outward by soil pressure than a plain old vertical wall. Foundations on or adjacent to slope surfaces shall be founded in firm material with an embedment and set back from the. Walls that tilt back toward the slope also tend to withhold under stormwater pressure. Where a retaining wall is constructed at the toe of the slope the height of the slope shall be measured from the top of the wall to the top of the slope.
The foundation shape has particular importance which aims to ensure a wall under the pressure of the soil will not change either the position or the slope.