Retaining Wall Design Example Canada

Design and analysis of retaining walls 8 1 introduction retaining walls are structures used to provide stability for earth or other materials at their natural slopes.

Retaining wall design example canada.

Load on heel is due to the weight of heel fill surcharge as the wall tries to tip over. Earthquake seismic design 7. Two equations are developed. The objective of this guideline is to provide information on retaining wall design in accordance with the city of nanaimo the city and the british columbia building code bcbc requirements.

Retaining wall design guidelines v1 1 covers indd lmf c m y k client bleed ad pic info enggeobc th write r prod docket live pr fonts. Worked example to accompany mbie guidance on the seismic design of retaining structures for residential sites in greater christchurch version 2 november 2014. Professional practice guidelines retaining wall design version 1 1 i preface. Building codes and retaining walls 5.

W wheel wfill wsur k ft klf ft u u klf ft ft ft w l m w plf. Gravity walls rely on their own weight and setback to hold up the soil behind them. F c 3000 psi fy 60 ksi natural soil development of structural design equations. Cantilever concrete retaining walls are commonly used for residential purposes often as integral basement walls.

In this example the structural design of the three retaining wall components is performed by hand. Because a retaining wall is going to be in contact with the ground make sure you use lumber that s rated for ground contact. Forces on retaining walls 6. If you want to move the earth build a retaining wall by the time you re done you ll feel as though you ve moved half the planet.

Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider. In general they are used to hold back or support soil banks and water or to maintain difference in the elevation of the ground surface on each of wall sides. Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance. However some regulatory and structural issues are discussed.

Ce 537 spring 2011 retaining wall design example 6 8 2 80 5 0 allowablebearingcapacity ok 1 11 75 6 1 29 9 1 11 75 17 69 2 ksf ksf ft ft k ft ft k v 7. Sketches of the retaining wall forces should be considered to properly distinguish the different forces acting on our retaining wall as tackled in the previous article retaining wall. Ddb canada 1600 777 hornby street vancouver bc canada v6z 2t3 t 604 687 7911 f 604 640 4344. Please note that the gravity wall chart provided has specific heights for specific site and soil conditions.

Your best choice is a pressure treated wood that has a rating of 40 or higher. Soil mechanics simplified 4. These professional practice. The focus of the guideline is the geotechnical aspects of retaining wall design.

Soil bearing and stability 8. Learn more about gravity wall construction.