Case Studies
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A Residential DelightThe land on this residence was very uneven and was causing grading problems with the landscaping design. The goal of this project was to aesthetically maintain the grade difference between the existing topography and the proposed driveway elevations, while keeping costs low. With this in mind, Bob Morawczynski along with Moraw Consultants used the Risiwall software (available from www.risistone.com) to design a project that utilized the Pisa2 system...
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A Wall with a ViewThe owner’s house was situated on the higher reaches of a steep hill, and the wall was to be constructed in order to build a small playground and garden at the back of this luxury home. The colour scheme chosen was a natural-looking blend of yellow and red, accentuating the verdant surroundings. This was the highest Pisa2 wall supplied to date by Risi Stone Systems (M) Sdn Bhd...
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A Work of Art in LandscapingThis project is located in a private residential area in St. Charles, Illinois. The purpose of the project was to create a new access road (Oak Shadows Lane) across the originally sloped bank between the residential building and a pond. Retaining walls were therefore required to maintain the grade differences between the cut slope and the new road. The proposed walls were designed in a terraced arrangement with flowing curves and corners to enhance the beauty of this area. The walls are not only durable, but also complement and mirror the quiet and naturally landscaped neighbourhood...
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Byrd ParkIn 1992, the City of Richmond, VA selected a Pisa2 / Risigrid reinforced retaining wall system to protect the lakefront surrounding a large municipal retention pond. The size of the wall was approximately 6 ft high and 2,350 ft long...
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Forest Lawn Dry PondThis dry pond project was constructed between July and September 2003 in Calgary, Alberta. The dry pond was built for overflow of water during storm water runoff. The Pisa2 terraced retaining walls were built to provide seating at this location for audiences of sporting events...
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Italian for Common SenseThose who have been to IKEA on a Saturday afternoon will attest to the need for parking space – and lots of it. So when the Swedish furniture retailer planned for its newest and largest flagship store, located just west of Toronto, the issue of ample parking was paramount. In order to fully maximize the site, an underground parking structure and aboveground parking were required. As a result, a wall was called for to provide the necessary grades to achieve this space-saving plan...
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Makes the GradeDuring the summer of 1995, Chrysler Canada performed site work to upgrade their facilities in Brampton, Ontario. The purpose was to create a new access road where a slope and earth berm originally existed. Below the wall there was a storm water management area that had to be left undisturbed...
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Miles Above the RestDuring the fall of 1998, Albert Kahn & Associates contacted Unilock Michigan, Inc. to assist in the design of a large retaining wall constructed from segmental retaining wall (SRW) units. The original concept called for one wall approximately 28 ft. in height, supporting a helipad on the top surface. After consulting with the architects, it was determined that there were several requirements that had to be met such as aesthetics, factors of safety, design life of structure, fall protection, and cost...
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Terraced to the LimitThis project is located on York Mills Road, just seconds from Yonge Street and the subway line, and minutes to downtown Toronto. The neighborhood is an exclusive, well-established, quiet, residential neighbourhood. The site available to the owner was originally a tree- covered slope which had several technical details that had to be addressed. Economically, the site could only be be developed by constructing a multiple-level condominium building. The space available was extremely tight, and parking for the tenants would have to be provided under the building. To fit the condominium on to the property it would be necessary to construct a slope of approximately 45 degrees behind the building...
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Traffic IslandThe Project: The goal of this project was to construct Pisa2 retaining walls to function as landscaped flower boxes, disguising a DB room and pump house. The project involved the construction of a large planter box, with smaller curved flower boxes. The Pisa2 block can be used to create smooth, gracefully curved walls, as well as assorted steps and terraces. The Pisa2 block was thus ideal for this project. Quarry dust was used as backfill, a BRC Mesh reinforced concrete base as the footpad, and geogrids as reinforcement. Drainage was achieved via use of a drainage coil...
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