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Contractors World  - UK & Ireland
2013 Vol 3 No 3
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Out & About

Mega Brace Takes the Weight for Warrington Waterworks - continued

Contractors World - Mega Brace consists of a series of hydraulically adjustable legs forming a heavy duty bracing system to support multi-sided excavations. As material was progressively excavated from within the piled retaining wall, Groundforce Mega Brace modular hydraulic struts to support the piled wall were installed.

“Normally, a project like this would be built from the top down, but because of the need to prevent contamination of the underlying sandstone aquifer from the former tip material in the upper 5 to 6 m, we had to excavate the area and build the plant from the bottom up” says DCT site agent Stewart Lowe.

A previous project using similar shoring methods influenced the decision to use the same system at Bewsey Bridge, says Mr Lowe, “DCT had completed a similar octagonal excavation with help from Groundforce in Manchester some years ago, so we thought they were the best people to help again this time – even though this was a much larger excavation.”

Mega Brace consists of a series of hydraulically adjustable legs forming a heavy duty bracing system to support multi-sided excavations. Their modular design allows for ease of installation and removal, as well as quick assembly. Articulated pin-joints enable the braces to be used in irregular and non-rectangular excavations.

Due to the poor ground conditions and the loads imposed by the deep excavation, Groundforce supplied four levels of Mega Brace to support the sheet-piled retaining wall to the sandstone bed rock. Some 18,500 m³ of spoil was removed using two Hitachi ZX225 excavators, one Komatsu PC240 long reach excavator and a Komatsu CK25-1 , each carrying an hydraulic breaker, then worked within the excavation to dig through the sandstone.

Click here for more information >>> Groundforce

Contractors World - UK’s First Doppstadt Rotaro RDF to KCM UK’s First Doppstadt Rotaro RDF to KCM

Phil and Mark Hickling, owners of KCM Waste Management, have built an MRF and Recycling Centre at their Rotherham premises where, in addition to processing and recycling general waste, the company is also baling a variety of plastics and cardboard and producing biomass briquettes from waste for energy generation.

Increasing volumes and varieties of recyclable materials coming into KCM Waste Management’s recycling plant have seen a significant growth in both throughput and waste stream variances.

Two years ago, KCM purchased a Doppstadt DW-3060K shredder and an SM-620 trommel which work in tandem and this was followed recently by the design, supply and installation of a complete commercial waste treatment plant from Blue Machinery Central. This is comprised of a Nihot air separator, picking line, eddy current separator and, first of its kind in the UK, a new Doppstadt DF-307 Rotaro RDF shredder.

The Doppstadt DF-307 Rotaro is a single-shaft secondary fine shredder specifically designed and built for RDF production. High rotor mass increases the energy efficiency of the drive, with the rotor driven by two three-phase AC motors.

Click here for more information >>> Doppstadt


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