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The Geopier SRT™ system is a slope reinforcement technology implemented to stabilize slope failures or reinforce marginally stable slopes.
The patented Plate Pile™ method provides slope stabilization using an array of rigid steel piles driven into the slope in a staggered array of uniformly spaced rows. It is well suited to rapidly and economically stabilize landslides that occur on sites that have difficult access or require minimized environmental disturbance and to stabilize steep slopes to create more buildable space for developments. The method has been used for highway slopes, commercial developments, creek bank repairs, unlined canal slopes, levee slope repair, and mudflow source areas.
- Rapid Installation Process: A large number Plate Piles can be installed rapidly, thus reducing the required construction schedule as compared to other solutions. For example, smaller slope areas (i.e. 3,000 – 4,000 sq ft) have been stabilized in a single day. The SRT system is typically installed using small, tracked excavators with a hydraulic hammer attachment. Installation is a fast, clean, dry process that can occur even in poor weather.
- Access to Restricted Spaces: Small, mobile equipment and easily-handled Plate Piles allow the system to be installed at sites with difficult access and without the need for major grading. The SRT system can reduce permitting/ROW requirements needed for earthwork operations.
Low Impact Technology: The SRT installation process provides minimal site disturbance with a low carbon footprint. The method minimizes site disruption effects on natural vegetation, and often eliminates delays related to environmental permitting.
- Lower Cost: The cost to install the SRT™ system is typically significantly less than the cost of conventional remove-and-replace methods or retaining walls.
Below you will find project summaries that illustrate the diverse projects that have been supported by Geopier SRT. We would be pleased to provide you with more information on these and other projects or applications. Please contact your Region Engineer or our main office for more information.
Project Summary | Slide Repair, Pleasant Hill, CA
Project Summary | Caltrans Stabilization, Williams, CA
Project Summary | HOT Lanes slopes, Fairfax, VA
Project Summary | New Madrid Power Plant, New Madrid, OH
SRT technology evolved from the slope research performed at the Blackhawk Geologic Hazard Abatement District (GHAD) in Danville, California. The GHAD's purpose is to repair and prevent landslides in a community of 2,500 homes located in terrain dominated by steep slopes. During one rainstorm in 2002, more than 60 shallow landslides occurred in the District. The GHAD manager, Richard Short, investigated a more effective and less costly way of stabilizing shallow slides than the conventional remove and replace method. Today, the SRT method of using Plate Piles to stabilize slopes in various conditions has been proven as a reliable and more efficient alternative.
Richard Short, PE, founder of the SRT technology, is a nationally recognized geotechnical expert with more than 40 years’ experience throughout the United States. Mr. Short graduated with a Bachelor of Science in Civil Engineering from the University of Nevada, Reno and obtained a Master of Science in Geotechnical Engineering from the University of California, Berkeley. Today, he works with other Geopier engineers to research, develop and provide practical and effective solutions for slope stabilization including slope reinforcement and subsurface drainage.
The patented SRT Plate Pile™ method is well suited to stabilize slides or steep slopes that do not meet required stability criteria. The technology is best suited for the following conditions:
- Slope Inclination between 17 degrees (3:1) to 45 degrees (1:1)
- Slides up to 15 feet thick
- All soil types (with the exception of very loose to loose sand) overlying an underlying competent layer into which the Plate Piles penetrate. Plate Piles may be installed into soft rock (e.g. siltstone, claystone, mudstone, weathered shale, etc.).
The Plate Pile method is not suited to stabilize deep-seated (i.e. greater than 15 ft) failures, and cannot be installed into hard rock or soil with large boulders or other obstructions without pre-drilling or other site preparation.
For more information on the SRT system:
Geopier Foundation Company, 130 Harbour Place Drive, Suite 280,
(704) 439-1790 or 800-371-7470
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