Timber crib walls, while aesthetically pleasing and useful for retaining soil, are prone to failure due to several factors. Here’s a breakdown of the key issues and solutions

Causes of Timber Crib Wall Failure

• Poor-quality timber: If the timber used is not properly treated, it can degrade quickly.
• Inadequate timber treatment: Without proper preservation, timber can rot prematurely.
• Substandard stone fill: If the infill material contains fines, it retains moisture, accelerating timber decay.
• Blocked or absent drainage: Water buildup behind the wall can weaken the structure.
• Poor installation: Incorrect construction techniques can lead to early failure.
  

Common Types of Failure

• • Top-of-wall failure: The upper sections of the crib wall collapse due to weakened timber.
  • Bottom-of-wall failure: The base deteriorates, leading to instability.

Piletec  specialises in assessing, designing, and remediating failing timber crib walls using  robust and multi-layered reinforcement systems. Our approach integrates advanced geotechnical techniques to stabilise deteriorating structures and prevent future failure.

Comprehensive Remediation Methods

Piletec employs multiple reinforcement methods to strengthen and stabilise crib walls, including:

• Soil Nails & Waling’s – High-strength soil nails are installed and waling’s fitted to secure the existing structure, providing deep anchorage and preventing movement.
• Structured Galvanised Mesh – A durable galvanised steel mesh is applied to enhance structural integrity and prevent further degradation.
• Mini Gabion Facing – A compact gabion system is secured with soil nails, creating a protective facing that strengthens the wall and minimises deterioration.

Assessment & Bespoke Design

Piletec carries out comprehensive site evaluations to diagnose the root causes of crib wall failure, such as timber decay, water infiltration, or soil displacement. Our engineers develop bespoke remediation designs tailored to specific project conditions, ensuring a long-lasting solution.

Advanced Engineering & Installation

Piletec’s expert team utilises cutting-edge geotechnical engineering techniques to install the soil nails, structured mesh, and mini gabion facing with precision. Our integrated approach not only restores stability but also enhances resilience against environmental stresses.

By combining these reinforcement methods, Piletec delivers a strengthened crib wall system that mitigates structural weaknesses and ensures long-term durability.