Use of Track Grips on Tracked Excavator

This project includes work to install counterfort drains to the slopes of the recently formed cutting for the new carriageway. With the cutting at a maximum depth of approximately 14m deep from original ground levels, with the cutting slopes at 1:3, over a total carriageway length of approximately 500m, the drainage installation was a significant package of work. The drainage design detailed the installation in a herringbone pattern, which meant that the excavators needed to operate diagonally on the slope.

The contractor and their earthworks subcontractor had concerns over the potential for instability of the tracked excavators that would be working on the slopes to dig the trenches and install the filter drainage stone. Due to the nature of the ground on which the excavators would be working, a Mercia Mudstone clay material which provides reduced traction when wet, mitigating this risk was an important aspect of the safe working methodology. The subcontractor carried out some research and proposed the use of track grips.

These grips are fitted to the tracks of the machines and, comparable to crampons on walking boots, provide additional levels of traction as the machine traverses the slope.

Footer Reference

Monitor Report. Balfour Beatty. Nottinghamshire. May 2021.

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