RidgeRock Retaining Walls ...The ENGINEERED Segmental RetainingWall SystemRidgeRock Retaining Wall Systems combine thestringent design requirements of engineered retainingwalls with the beauty of architectural landscaping.The RidgeRock Retaining Wall System was developed by soilretention specialists to meet the specific design requirements ofengineers, architects and owners. The proper design of efficient andeconomical retaining wall systems requires a strong workingknowledge of soil retention theory and practice. The developers ofthe RidgeRock concept have amassed over 25 years of soil reinforcement design experience. Their evaluation of present soil retentionneeds has resulted in the development of the RidgeRock Retaining Wall System ...a combination of products and services which totallyaddress the site development requirements of commercial, residential, and public works projects. The RidgeRock Retaining Wall Unit Weight (not filled): 75 pounds Height: 8 inches Depth (front to back): 12 inches Width (left to right): 18 inches Face coverage: 1.0 square feet Setback per course: 0.5 inchesThe RidgeRock Cap UnitWeight: 68 poundsHeight: ·4 inchesDepth (front to back): 12 inchesWidth (left to right): 18 inchesFace coverage: 0.50 square feetNote: RidgeRock dimensions may vary. Please contact your local RidgeRock representative for exact specifications.
3 Specification guidelines: RidgeRock Retaining Wall SystemsPart 1: General grading plans. 3.02 Foundation Preparation 1.0 I Description A. The foundation soil shall be excavated to the leveling pad di- Work shall consist of furnishing all materials, labor, equipment, and mensions indicated on the plans. supervision to intall a segmental retaining wall system to the lines, B. The foundation soil shall be evaluated by the engineer to con- grades, design and dimensions shown on the plans, or as established firm the design bearing strength of the foundation soils. Soils by the owner or owners engineer. not meeting the design bearing strength shall be replaced with 1.02 Related Work suitable fill. A. Section -S ite Preparation 3.03 Leveling Pad Installation B. Section -Earthwork A. A minimum 6 inch thick layer of compacted granular material1.03 Reference Standards shall be placed as shown on the construction drawings. A. NCMA Design Mannal for Segmental Retaining Walls B. The granular base shall be compacted to 95% ofthe maximum B. ASTM C 140-Sampling and Testing Concrete Masonry Units standard Proctor density. The base shall be capable ofprovid- C. ASTM D4595-Test Method of Tensile Properties of Geotex- ing a firm level bearing pad on which to place the first course tiles by the Wide-Width Strip Method of Ridge Rock Segmental Retaining Wall Units. D. GRI-GG4-Determination of the Long Term Design Strength of 3.04 Retaining Wall Unit Installation Geosynthetics A. All materials shall be installed at the elevation and orientation 1.04 Delivery, Storage and Handling shown on the plans. A. The Contractor shall inspect the materials upon delivery to B. The retaining wall units shall be installed adjacent to each assure that the proper material has been received. other along the alignment of the wall. B. The Contractor shall store and handle materials so as to protect C. Fill the RidgeRock Retaining Wall Units with drainage aggre- materials from damage. Damaged material shall not be incor- gate (Section 2.03). porated into the segmental retaining wall. D. Extend the drainage aggregate a minimum of 12 inches behind the retaining wall units. E. Clean the top of the units so that they are free of aggregate.Part 2: Materials F. Offset the second course of Ridge Rock units, and pull them ""- forward, so that the RidgeRock Shear Key engages with the2.0 I Concrete Segmental Retaining Wall (SRW) Units lower RidgeRock course. Repeat the above procedure until the A. SRW units shall be RidgeRock Retaining Wall Units. proper height is achieved. B. Concrete segmental retaining wall units shall conform to the G. Terminate the end of the wall by turning the units at a radius requirements ofNCMA TEK 2-4 and have a minimum 28 days into the embankment. compressive strength strength onooo psi and a maximum 3.05 Cap Unit Installation absorption of 10 pcf as determined in accordance with ASTM A. Place the Cap Unit over the last course of retaining wall units. C 140. The units shall have adequate freeze/thaw protection B. Use a high strength cap adhesive designed exclusively for seg- and meet the requirements of ASTM C 1262. mental retaining walls to bond the cap to the wall. C. All SRW units shall be sound and free of cracks or other de- 3.06 Geosynthetic Installation fects that would interfere with the placement or performance of A. Install the geosynthetic reinforcement at the elevations shown the units. on the construction drawings. D. SRW unit dimensions shall not differ more than ±lIS inch as B. The geosynthetic shall be installed by placing the primary measured in accordance with ASTM C 140. strength direction of the product over the RidgeRock Unit E. Cap adhesive shall meet the requirements of Ridge Rock Re- (extended to the face of the unit), placing the next course of taining Walls Inc. retaining wall units over the geosynthetic and pulling the2.02 Geosynthetic Reinforcement geosynthetic taut. Anchor the end of the geosynthetic with A. Geosynthetic Reinforcement shall consist of those high pins or stakes to maintain tension prior to fill placement. . strength geogrid or geotextiles designed for use in segmental 3.07 Backfill Placement retaining wall systems. A. The backfill shall be placed in maximum loose lift thicknesses B. The geogrid type, strength and placement shall be as shown on oflO inches, and compacted to 95% of Standard Proctor den- the plans. The design properties of the geogrid/RidgeRock sity. system shall be determined by the procedures outlined in the B. Backfill shall be spread and compacted in such a manner that Geosynthetic Research Institute, GRl-GG4, and NCMA eliminates the development of slack in the geosynthetic. SRWU-1. C. Only hand operated compaction equipment shall be allowed2.03 Drainage Aggregate within 3 feet of the front of the wall face. Drainage aggregate shall be a clean crushed stone or granular fill D. Tracked construction equ ipment shall not operate directly upon meeting the following gradation: the geosynthetic reinforcement. A minimum backfill thickness2.04 Reinforced Backfill of6 inches is required prior to operation of tracked vehicles over the geosynthetic reinforcement. Turning of tracked vehi- Sieve Size percent Passing cles shall be kept to a minimum to prevent fill and geosynthetic I inch 100 displacement. E. Rubber tired equipment may pass over the geosynthetic rein- 3/4 inch 75-00 forcement at slow speeds less than 10 mph. Sudden braking No.4 0-60 and turning must be avoided. No. 40 0-50 F. At the end of the days operation, slope the backfill away from the wall to direct runoff away from the wall face. The contrac- No. 200 0-5 tor shall not allow surface runoff to enter the wall construction The reinforced backfill shall be free of debris, and consist of inor- site. ganic, low plasticity soil. 3.08 Drainage Fill Placement A. The drainage fill shall be placed as directed on the construction plans.Part 3: Installation B. Install a minimum 3 inch drainage pipe behind the base of the wall to collect drainage from the drainage fill.3.01 Excavation A. Contractor shall excavate to the lines and grades shown on the
Design Applications:The design applications for the RidgeRock Retaining Wall System are nearly infinite ... §JJ~~~~L a l:l ~ m • Commercial and retail centers - RidgeRock re- taining walls increase useable space, adding valuable parking and building footage to the de- velopment. - • n~L Apartments, condominiums and multi-family housing - Severe space constraints and space FE rn :: consuming grade changes are eliminated by the use of the RidgeRock Retaining Wall System. ED • Highway and Transporation Systems - Ridge- Rock retaining walls minimize transportation ~ j right-of-way aquisition, and provide economi- cal, aesthetically pleasing bridge abutments and wing walls. r" ~ ~ • Homes - Landscaping areas are enhanced and property constraints minimized by the use of ~ IDRUl aL RidgeRock retaining wall systems.RidgeRock Retaining Walls ...The Engineered Segmental Retaining Wall System.Call your local RidgeRock representative to learn more about how RidgeRock RetainingWalls can meet even your most challenging landscaping and site development needs. Distributed by: