Brick Retaining Wall Design Guide

Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.

Brick retaining wall design guide.

To mark a free form layout use a rope or hose to outline the shape. Learn more about gravity wall construction. Bricks can be laid in two skins which can be held together by mesh or built as a 225mm thick wall as shown in the laying bricks project. This is not meant to be a final authority as each project has its own set of unique situations.

Your retaining wall design will determine how you mark the area. A garden retaining wall of up to 400mm high can be built out of a single skin wall of facing bricks or concrete block. Walling guide no 4. Mass retaining walls are not generally considered to be economic over a height of 1800mm when constructed of brick or concrete and 1000mm high in the case of natural stonework.

Please note that the gravity wall chart provided has specific heights for specific site and soil conditions. Building codes and retaining walls 5. Soil bearing and stability 8. Gravity walls rely on their own weight and setback to hold up the soil behind them.

N ultimate load design with material factors based on characteristic soil properties partial load factors consistent with as 1170 1 and structure designs to as 3700 and as 3600. This design is composed of two standard brick walls just inches apart that share the same foundation. Earthquake seismic design 7. Forces on retaining walls 6.

Design sequence design problem quick solution detailed method 1 determine the wind class local authority see as 1170 2 for the site or as 4055 2 convert wind class to pressure table 1 see section 5 2 3 convert wind pressure to tables 2 3 see section 5 2 1. A wall any higher than this needs to be thicker and there are several ways of achieving this. Manufacturer s recommendations should be followed regarding the capacity of their particular system for the soil loads under consideration. Between them is a gap for steel that runs up from the foundation to the top of the wall.

Design procedure overview 3. The intent of this material is to communicate the best practices for design of segmental retaining walls srw as determined by allan block corporation based on 25 plus years of research design and field experience. Brick retaining walls typical mass retaining wall details these walls rely mainly on their own mass to overcome the tendency to slide forwards. Soil mechanics simplified 4.

The structural capacity of the srw system will vary with the srw unit size shape batter etc. If you are not sure of your site conditions we recommend being conservative with your retaining wall heights or use geogrid in your retaining wall. Segmental retaining walls can be designed as either conventional or as reinforced soil as illustrated in figure 1. Follow the block manufacturer s instructions for wall height limits.

A retaining wall made entirely out of brick is known as a cavity wall.