Levee Anchoring Solutions

Levee Anchoring Solutions

Case Study

Levee Anchoring Solutions

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Project Overview

Vegetated earthen levees serve to regulate water levels, and when constructed in coastal regions protect against flood damages resulting from storm surge. Vegetation on a levee plays the vital role of holding the soils that make up the protective earthen structure in place, while HPTRMs and other manmade veneer systems enhance the vegetation to ward off the erosive forces of waves and continuous “chop” associated with winds and high water.  In the most severe conditions, these surface protection systems fend of the destructive erosive forces of overtopping that commonly decimates an unprotected earthen levee.

Solution

Platipus Stealth anchors are ready to tie down the appropriate HPTRM or erosion control veneer system, forming a mechanical connection to the substrate. If soils are unstable or a slip plane has been identified, our Geotechnical Team and Anchor Experts are available to assist in design and selection of the appropriate Stealth Anchor Systems.

Boulevard Sur Ciudad San Cristobal, Guatemala City, Guatemala

Boulevard Sur Ciudad San Cristobal, Guatemala City, Guatemala

Case Study

Boulevard Sur Ciudad San Cristobal, Guatemala City, Guatemala

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Project Overview

Due to a significant landslide on the San Cristóbal Boulevard the Government of Guatemala (COVIAL) decided to relocate the original route. This meant that existing slopes had to be cut to create the new road resulting in extreme slopes exposed without vegetation that needed to be stabilized.

Solution

After completing a stability analysis of the slopes, it was decided that a robust erosion control solution would be required. Due to the dimensions and ground conditions of the slopes, a three-dimensional High Performance Turf Reinforcement Mat (HPTRM) was proposed to be secured using Platipus Anchors. A total of 5200m² (6,200 yd2) of TenCate TM14S three-dimensional HPTRM erosion control matting was installed to cover the slopes, secured in place using 1,475 Platipus S2 Geo assemblies. Installation was completed by specialized trained abseil crews, while the combined solution provided a design life of 75 years.

Mariscal Sucre International Airport Access, Ecuador

Mariscal Sucre International Airport Access, Ecuador

Case Study

Mariscal Sucre International Airport Access, Ecuador

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Project Overview

Steep cuts along the newly constructed access road to the airport required surface protection against deep erosion and shallow surface sliding. Traditional shotcrete methods were used on much of the easy access areas. The extremely high slopes posed difficulties for traditional methods so Platipus introduced the Anchored Reinforced Grid Solution (ARGS®) to protect the surface. The solution was employed and recently withstood a 5.1 earthquake on the 12th of August 2014 while other unprotected areas experienced some failures.

Solution

The cut slopes were first protected with 2 layers of erosion control materials. The first provided the erosion protection and kept the surface soil from sliding down the slope. The top layer provided the strength to handle the load generated by the Percussion Driven Earth Anchor (PDEA®) as well as UV protection.