Standard details for retaining walls santa cruz county. Retaining walls are structures used to provide stability for earth or other materials at their natural slopes. Browse anchor walls technical materials, including retaining wall design examples and specifications, cad drawings, wall section detail dwg files, installation instructions and more. Download specific technical cornerstone retaining wall cad details here for any one of your projects.
The lateral forces from backfill is resisted by the weight of wall itself, and due to their massive nature, they develop little or no tension. The following is a listing of the allan block typical details that are available. Active earth pressure tends to deflect the wall away from the backfill. Vertical tiedown system with earth anchors pdf dwg. A goodlooking retaining wall depends on level footings, and the best way to establish level over long distances is with a builders level. Earthquake load the force exerted on the structure by earthquake action, acting on. Engineering specifications and product data sheets for concrete retaining walls, landscaping walls, columns, steps and pavers. The retaining wall retains less than 4 feet of material with or without a surcharge, unless the surcharge is caused by a building. Get pleasantly infrequent product announcements and news delivered to your inbox. Prestressed retaining wall gravity walls reinforced gravity walls concrete cantilever. Gravity specifications pdf word xl specifications pdf word design details. Segmental retaining walls best practices guide 3 segmental retaining walls best practices guide for the speci. Deviations from these plans or surcharge loads from adjacent structures, driveways, parking areas, terraced retaining walls, or steep slopes within a 45 degree angle from the bottom of the footing require a complete engineers design.
An earth retaining structure can be considered to have the following types. After this present you will be able to do the completecomplete design design andand detailingdetailing ofof differentdifferent typestypes ofof. The following drawings are for general information and use. Earthquake load the force exerted on the structure by earthquake action, acting on either or both the face of the retaining wall and any other structure supported by the retaining wall. Roanoke county, virginia typical retaining wall details. Required permits for fences and retaining walls page 2 of 2 trtdoc00181. We can help with any cornerstone retaining wall cad details. Types of retaining walls common types of retaining walls gravity concrete wall cantilever reinforced concrete wall alternate types of. A crane is lifting a wall form to cast this reinforcedretaining wall.
Specialty detail resources by keystone retaining wall systems. All design criteria specified by a soils or geologic report must be met by use of the standard detail for the wall. For taller wall projects use geogrid to reinforce the wall, or consider optional techniques using masonry, nofines, rock bolts, soil nails, or earth anchors. It is not as stiff as other types of retaining walls.
For sound wall and barrier reinforcement details, see footing cover, 16 minimum. The ab collection has been a favorite of wall builders for years and offers the perfect blend of performance and style with maximum results. Retaining walls are used for many reasons including repairing landslides, minimizing right of way requirements, shortening bridges abutment walls, widening roads, and providing property access. Resources specialty details keystone retaining wall. Deflection generally governs design for cantilever walls more than 18 feet high. Click on the drawing to view or print a larger image. Pdf design and detailing of retaining walls for class. The basic design precepts employed in cantilever walls include considerations of dead man tiebacks, taking active pressures to the bottom of the wall and considering any reductions in passive resistance for inclined slopes. Determine the factors of safety against sliding and overturning. Consider the cantilever retaining wall with the cross section shown in the above figure a. Select the resources you need and click view collected to download all selected resources as a zip file or share your selection of resources as a custom link. 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 construction details for wall design and. Paucity of subdrainage drainage is the second most common mode of retaining walls failure the most common being dry rot.
A retaining wall is a structure that retains or holds back a soil or rock mass. Retaining walls types details with analysis and design. Retaining walls must be constructed in conformance with the details herein. Retaining wall installation manual for commercial jobs using. Sound wall masonry block with barrier on retaining wall sheet. Counterfort cantilevered retaining walls incorporate wing walls projecting upward from the heel of the footing into the stem. Retaining and flood walls table of contents subject paragraph page chapter 1. Redirock construction details redirock retaining walls. Active earth pressure or earth pressure pa and passive earth pressure p p. After this present you will be able to do the completecomplete design design andand detailingdetailing ofof. Anchor block typical section pdf dwg new anchor block waler beam detail pdf dwg new vertical tiedown system pdf dwg.
Obars and corresponding dowels may be substituted with a single, fullheight. For details not shown and drainage notes see texture see details elsewhere in project plans for sound wall and retaining wall architectural finish or 8614 october 2014 california state of. Another type of gravity wall is the crib retaining wall, which. To download a detail, click on the desired file format. Retaining wall detail package city of alexandria, virginia. The latter will be discussed in this section to ensure that the retaining wall is stable by checking stability against overturning, sliding, and allowable.
This 30foot tall reinforced concrete wall was being built in atlanta, georgia, in 1980. Therefore, they are usually not reinforced with steel. Concrete retaining wall product technical materials. All retaining walls over three 3 feet in height measured from the top of the footing to the top of the wall. Concrete masonry reinforced cantilever retaining walls edition e3, may 20 isbn 0 909407 56 8. These two zones likely transmitted more subsurafec seepage than the adjacent zones. Bpc016 retaining wall designs instructions and forms. Typical retaining wall details based on the 2015 virginia residential code this design document applies to residential, non tiered, nonstacked retaining walls with level backfill and no surcharge loading that retains no more than 4 feet of earth.
Retaining wall definition and types of retaining walls. However, retaining wallscanalsobeconstructed for aesthetic landscaping purposes. Introduction purpose applicability references and bibliography terms scope chapter 2. Technical cad details cornerstone 100 cornerstone wall. Resources specialty details keystone retaining wall systems. Cantilever retaining walls figure b are made of reinforced concrete that consists of a thin stem and a base slab. The use of the city of alexandria typical retaining wall details for a tiered or stacked retaining wall system is strictly prohibited. If youre building a wall with only a couple of 4ft. The construction of a concrete retaining wall shall conform to the dimensions and reinforcing steel requirements shown in. A site evaluation see form cni002 and a building permit is required. Types of retaining walls structural engineering forum of. They are built from solid concrete or rock rubble mortared together. Gravity walls are the earliest known retaining structures. Alternative design procedures justified in a geotechnical report may also be approved.
Rock retaining wall, landscaping retaining walls, hillside landscaping, eco deco, stone. Design and detailing of retaining walls learning outcomes. A copy of these retaining wall details is required to be on the job site and available to the inspector during the construction and inspection process. Howtobuild guide low retaining walls what you can build using this guide this guide shows you how to build a timber retaining wall up to 1. Design of retaining walls as presented in this bulletin are in accordance with sections 1610. 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. Each file also is available for download in autocad. There are different types of retaining walls, and not all require a building consent. Common failure modes of cantilever retaining walls, from huntingtons earth pressures and retaining walls 1957 the basic design precepts employed in cantilever walls include considerations of dead man tiebacks, taking active pressures to the bottom of the wall and considering any reductions in passive resistance for inclined slopes. A slurry wall refers to the method of construction. Retaining wall installation manual for commercial jobs.
Download free, highquality cad drawings, blocks and details of retaining walls organized by masterformat. Typical detail resources by keystone retaining wall systems for structural wall applications. D ata sheet concrete retaining walls concrete retaining walls provide a durable solution that is required of a structure in contact with soil and exposed to constant wetting and. The focus of the guideline is the geotechnical aspects of retaining wall design. O box 7062 kampala college of engineering, design, art and technology school of built environment. It is designed so that to resist the material pressure of the material that it is holding back. Where the backfill is greater than 12 ft in height, such proposed walls shall be designed per a geotechnical investigation and report prepared by a licensed geotechnical engineer and shall. They depend mostly on their own weight and any soil resting on the wall for stability. When seeking retaining wall blocks for your next outdoor landscape or patio project, see what makes the stone retaining wall pavers from belgard stand out above the rest.
Standard retaining wall our original, most popular unit, the standard unit is the backbone of versalok retaining wall systems. Reinforced concrete cantilever retaining wall analysis and. A retaining wall is a structure that retains holds back any material usually earth and prevents it from sliding or eroding away. The units solid construction and unique pinning system provide an endless array of design options, hardcore durability and the fastest, easiest installation available.