Case Studies

Due to potentially high water flows and heavy hydraulic pressure, dam and spillway applications have unique considerations when it comes to erosion control and slope protection. Whether you need to protect an infrequently used spillway area, a dam crest that sees semi-frequent vehicle traffic, or entire dam structures in constant use, the GEOWEB® 3D Soil Confinement System will be able to provide a solution. With multiple infill options and anchorage choices available, the GEOWEB system’s flexibility allows it to meet the demands of any site. Learning Objectives: Understand how the GEOWEB system can protect against erosion water flow. Learn how to apply the GEOWEB slope protection system in a variety of project conditions. Learn how the GEOWEB confinement system can accommodate typical construction issues and design problems. Understand how the GEOWEB system reduces vertical pressure on the subgrade, allowing for a reduced cross-section.

It’s no secret that America’s infrastructure is desperately in need of investment. The American Society of Civil Engineers (ASCE) gave the country’s infrastructure an overall grade of D-plus in its 2017 Infrastructure Report Card—dangerously close to an outright failing grade. The ASCE estimates that the U.S. will need to spend nearly $4.5 trillion by 2025 to fix the country’s roads, bridges, dams, and other infrastructure. Infrastructure development for highways and road corridors faces many challenges when it comes to project design and construction. Building asphalt or concrete roadways over soft soils requires thick base layers of expensive stone, and pavement surfaces often fail just a few years after installation. Expanding road width requires steepening corridor embankments, leading to potential slope failure that can cause road closures and damage. Stormwater management alongside roads is an increasingly common concern due to limited construction space and larger storm events. Presto Geosystems provides cost-effective, low-maintenance, quality solutions for all of these potential issues using our GEOWEB® 3D Soil Stabilization System. In this webinar, we will discuss how to utilize these solutions to address the challenges of aging infrastructure. Learning Objectives: Gain an understanding of the innovative ways Presto Geosystems’ products can provide permanent stability… Read more »

Due to potentially high water flows and heavy hydraulic pressure, dam and spillway applications have unique considerations when it comes to erosion control and slope protection. Whether you need to protect an infrequently used spillway area, a dam crest that sees semi-frequent vehicle traffic, or entire dam structures in constant use, the GEOWEB® 3D Soil Confinement System will be able to provide a solution. With multiple infill options and anchorage choices available, the GEOWEB system’s flexibility allows it to meet the demands of any site. Learning Objectives: Understand how the GEOWEB system can protect against erosion water flow. Learn how to apply the GEOWEB slope protection system in a variety of project conditions. Learn how the GEOWEB confinement system can accommodate typical construction issues and design problems. Understand how the GEOWEB system reduces vertical pressure on the subgrade, allowing for a reduced cross-section.

Designers and owner/operators face several geotechnical and environmental challenges in the landfill industry. Among them are slope stabilization and erosion prevention/control, stormwater management, geomembrane protection, access/haul road construction and maintenance, and management of long-term settlement issues at capped cells and closed facilities. The GEOWEB® 3D Soil Stabilization System (geocells) can provide solutions for all of these issues. Learning Objectives: Gain an understanding of how the GEOWEB geocells function, as well as the different applications for which they can be used. Understand the unique accessories provided by Presto Geosystems® and the ways that Presto can assist you from project initiation through construction. Gain an understanding of the different ways the GEOWEB® system can be used to address common challenges at landfill sites.

Today’s increasingly stringent environmental regulations continue to create the need for Low Impact Development (LID) and Green Infrastructure (GI) management on project sites. New and innovative methods must be used to limit hard surfaces such as parking lots, walkways, and emergency access lanes. Land access is at a premium, and areas of environmental protection are increasing, requiring builders and engineers to work with regulators to utilize both LID and GI practices. Porous pavements are an easy and economical way to reduce the impervious surfaces on-site and restore the natural water cycle close to its source. Porous pavements have the added benefit of reducing the size of above-ground detention ponds and minimizing conveyance and treatment infrastructure. Stormwater diversion channels, roadside swales, and drainage ditches can be constructed with low-maintenance solutions, protecting against erosion and overflow concerns. Living green walls increase the amount of vegetation on-site, help promote water filtration from higher elevations, and allow access to more valuable land. Learning Objectives: Learn what Low Impact Development and Green Infrastructure mean for residential and commercial project sites. Gain an understanding of the regulations governing these practices and how they have been met with traditional construction methods. Learn about porous pavement options and… Read more »

Today’s increasingly stringent stormwater regulations continue to create the need for stormwater management. The preferred method is to retain the stormwater on-site rather than having it move off-site through overland flow or into storm sewers. Typical solutions—retention or detention ponds—are expensive to construct, occupy valuable land, require significant maintenance, can be safety hazards, and are unattractive nuisances. An alternative solution is to reduce the amount of impermeable surface on the site. Hard-surface (asphalt and concrete) porous pavements are expensive and can be very difficult and time consuming to install. Rigid and flexible plastic porous pavement systems provide a low cost, easy-to-install surface designed to handle the most demanding load requirements. The porous pavers from Presto Geosystems can have a vegetated or aggregate infill. Learning Objectives: Understand the benefits of porous pavements. Learn how the rigid and flexible porous pavements perform under varying infill materials and traffic-loading conditions. Learn how to apply vegetated and aggregate porous pavements for a variety of project conditions. Understand how porous pavements are capable of detaining stormwater runoff.

When paved and unpaved roadway surfaces are built over weak subgrades, base deterioration can lead to degradation. This causes unwanted deflections, rutting, and cracking in the surface layer. Using the GEOWEB 3D Soil Stabilization System reduces the vertical pressure on roadways and provides a high-stiffness foundation. This increases the load capacity of the subgrade allowing it to more effectively handle heavy and repeated vehicle leads. In the base layer under hard pavements, confinement of aggregate significantly reduces movement and settlement, increasing the life of the pavement. Unpaved roadways also benefit with a more stable surface that performs as an on-site stormwater “detention” basin for infiltration at the source and runoff reduction. Learning Objectives: Understand the benefits of using the GEOWEB Soil Stabilization System to stabilize surfaces for unpaved roads using low-quality fill. Discover how 3D-confined base material reduces cross-section and provides a more stable base, especially over soft subgrade soils. Learn how the GEOWEB system reduces vertical pressure and subbase movement. Learn how to design pavement that will help meet on-site stormwater regulations and low environmental impact goals.    

Retaining wall systems are used to hold back earth and achieve grade separation between two adjacent points at different elevations. There are many types of retaining wall systems, including concrete, steel, gabions, sheet piling, and reinforced soil. The GEOWEB® Retaining Wall System, in general, belongs to the reinforced soil category. Depending on the slope angle and site conditions, retaining wall systems are commonly referred to as gravity walls, reinforced walls, or reinforced soil slopes. GEOWEB retaining walls make it possible to stabilize soil at the face of the wall or slope with a naturally vegetated fascia. The GEOWEB system’s open-celled terraces create a natural environment for sustainable vegetation and allow stormwater infiltration. GEOWEB walls conform well to landscape contours, are resistant to environmental degradation, and install 25-30% faster than MSE block walls. Learning Objectives: Learn about the different types of retaining wall systems that can be built with the GEOWEB system. Understand the design of the GEOWEB Retaining Wall System. Learn how the features of the GEOWEB retaining walls and what sets them apart from other types of walls. Learn about the free design tools and software offered by Presto Geosystems.

The constant weight of parked trailers, stacked containers, and heavy traffic patterns can cause your intermodal or port facility yard’s surface and subbase materials to degrade. This instability of the base materials causes rutting, potholes, and even pavement failure. These surface problems can require costly maintenance and significant interruption of facility operations, as well as create a loss of income from usable space. The GEOWEB® system reduces the vertical pressure and provides a high-stiffness foundation, increasing the load capacity of the subgrade to more effectively handle heavy reach stackers and container loads. In the base layer under hard pavements, confinement of aggregate significantly reduces movement, lateral heave, and settlement for increased pavement life. For unpaved surfaces, the GEOWEB system solves surface stability problems with less aggregate and less maintenance even allowing sand or on-site, lower quality aggregate to be used as infill. Learning Objectives: Understand the benefits of using the GEOWEB 3D Soil Stabilization System on surfaces and pavements. Learn how the GEOWEB system reduces vertical pressure and subbase movement. Understand how the GEOWEB system can reduce pavement depths. Learn how the GEOWEB confinement system extends pavement life and reduces maintenance.

In this webinar, we will explore solutions to a number of challenges faced by the mining industry. We will discuss how the GEOWEB®  3D Soil Stabilization System offers a better approach to soil stability challenges when accessing sites over soft ground; controlling and containing stormwater; protecting geomembranes from basins, tailing, and heap leach pads; and reclaiming slopes at the time of closure. Through 3D confinement and the strengthening of infill, less material is required and on-site waste rock can be used. The GEOWEB system offers increased speed of operation, lower maintenance, safer installation, and lower total cost of ownership. Learning Objectives: Understand the benefits of geocellular confinement for high-performing, long-lasting mine infrastructure. Explore mine applications for geocells in haul road, slope, channel, and containment pond solutions. Learn how 3D geocellular confinement can produce higher performance and lower maintenance mine site solutions.