Geocell Reinforcement for Slope Stability at Kings Dyke

Requirement

At Kings Dyke, Peterborough, a new road development required the re-profiling of a 70-degree slope. The slope, composed of Type 1 fill, needed reinforcement to ensure long-term stability. Additionally, an aesthetically pleasing solution was required to support vegetation growth.

Site challenges included:

• Slope reinforcement on a steep incline

• Material transportation constraints, requiring roadside drop-offs

• The need for a fall arrest system to ensure safe installation​

Testing

Before installation, a site test was conducted to confirm the suitability of the Vulcan Earth Anchor system. Engineers tested the AS-10 galvanised anchors, ensuring they could withstand the required 13kN load capacity. The test successfully validated their performance, confirming they met all safety and durability requirements​

Solution

To stabilise the slope and support vegetation growth, 56 x AS-10 galvanised Vulcan Earth Anchors were installed. These anchors were used to secure a Geocell system, which reinforces the surface while allowing for natural green coverage.

Installation Process:

• Equipment Used: Hand-held hydraulic breaker, frame winch, dynamometer

• Installation Method: Manual placement of anchors, secured through dynamic load testing

The combination of Geocell and Vulcan Earth Anchors created a strong, durable, and environmentally friendly solution for the slope​

Result

The project achieved all slope reinforcement objectives:

• Long-term stability of the 70-degree slope

• Aesthetically enhanced surface supporting vegetation growth

• Strong geotechnical performance, with a verified 13kN load capacity

• No unexpected issues encountered during installation​

By using a Geocell system reinforced with Vulcan Earth Anchors, the Kings Dyke project successfully delivered a safe, stable, and sustainable infrastructure solution.