Deep excavations needed for Sheffield’s new Blackburn Meadows Waste Water Treatment Works have on programme despite having to deal with poor ground conditions, according to main contractor ETM.
The £50M Yorkshire Water scheme will see the Blackburn facility upgraded ready to cope with Sheffield’s predicted population in 2025 and beyond.
Construction of the new inlets for the treatment works means that ETM is undertaking two deep excavations in loose sands and gravels and has called on Groundforce to help undertake this part of the work.
ETM and sub-contractor K Rouse Civil Engineering are using Groundforce Shorco’s Mega and Maxi brace frames, KD6 trench sheets and Mechshore 900, 690 and 490 braces to support the two excavations that are designed to accommodate new fine-screen chambers. Temporary support is being supplied by trench sheets installed using a Piletec MS4 EMV piling hammer and VibroSafe quick-fit attachment.
With supports now in place, work is focusing on casting the concrete walls for the chambers and construction is progressing well.