Guided Augering at West Chiltington. MBA011

Client
Holleran Mouchel Parkman

Project
Reduce the risk of private properties being flooded

Description

guided auger boring

As a result of private properties flooding during extreme rainfall, Holleran Mouchel Parkman working for Southern Water, were awarded the contract to place some 400m of sewer pipes to reduce the risk of sewer flooding.

Whilst most of the sewer could be laid open cut, AE Yates Trenchless Solutions Ltd were awarded two guided auger drills, 28m and 60m of 225mm, to be installed to a required gradient.

Excavation of the launch and receive pits highlighted one problem of very high ground water level, this coupled with very soft silty ground made life a little difficult for the main contractor to construct the first drive pit. Once completed, the auger machine was lowered into position and checks made for the correct alignment, gradient and invert.

The first pilot run of 28m, across the main road in the village from a public car park to public verge, took less than half a shift, with the augering process taking 2 days. Once the casings were through to the exit pit, the augers were withdrawn and the 225mm Naylor Denlok clay pipes jacked into positions in only 3 hours.
The second pilot drive of 60 metres took one day to drill and then 3 subsequent days to auger out and withdraw augers. Jacking in the 225mm clay pipes took one day. This second installation avoided the need to block off 4 private drive ways, and given installations of both auger drives was approx 3 metres, there was a significant saving in time, plant and cost to the main contractor and ultimately the customer.

Study Project Date  
Guided Auger Boring at Paddington New Yard. M219 06/04/2015
Guided Auger Boring DN600 Pentre, Deeside 05/01/2015
Guided Auger Boring at Shreding Green, Iver. M198 18/08/2014
Guided Auger Boring at Minworth Bio Gas, Minworth. M212 09/06/2014
Guided Auger Boring at Colchester Northern Approach Roads, Colchester, Essex. M203 09/12/2013
Guided Auger Boring at Pollard Street, Manchester. M193 03/06/2013
Guided Auger Boring at Portsmouth Flood Alleviation Scheme, Portsmouth. M191 01/04/2013
Guided Auger Boring at Welton Avenue DG5. M187 03/12/2012
Guided Auger Boring at Kinross Pumping Station, Kinross. M184 26/11/2012
Guided Auger Boring at Linstock Rising Main, Carlisle. D373 29/02/2012
Guided Auger Boring at Holt UTX, Trowbridge. M174 30/11/2011
Guided Auger Boring at Secker Wood Sewer Upgrade. MA25 28/02/2011
Guided Auger Boring and Shaft Sinking at Cross Lane, Middlewich. M162 31/07/2010
Guided Augering at West Chiltington. MBA011 30/04/2009
Guided Auger Boring at Wigan 28/02/2009

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