Mixing It Up To Maximise Pipeline Installations

Posted: Monday 14th April 2014

Deep Soil Mixing Technology Benefiting Pipeline Installations For Utility Companies.

One of the UK’s leading deep soil mixing specialists has been using its technology to resolve settlement problems for utility companies during pipeline installations – and all at a reduced expense, time, and using environmentally friendly solutions.

The company, Deep Soil Mixing Limited, is now hopeful that this technology will be more widely used as a construction process for ground stabilisation projects within Great Britain.

Reducing settlements for soft soil types like saturated peats, silts and soft clay is difficult and current answers are extremely costly – however, this specialist firm has a proven track record of offering an effective alternative to utility companies thanks to its deep soil mixing technology.

By mechanically mixing the existing soil with a cementitious binder, deep soil mixing changes the characteristics of weak soil and makes it more like soft rock but can still be excavated by traditional methods. This enables more efficient and effective pipeline installations as well as greater ground stability. Due to the fact natural resources are spared during this process, installations take less time overall having fewer associated costs and carbon emissions compared to other methods.

Robert McGall, Managing Director explains: “While the method for improving the characteristics of non-organic soils by using soil mixing techniques to reduce settlement, increase the stability of slopes and embankments is an established one, it is both more challenging and often more costly to increase the firmness of soft organic soils like peat, silt and clay – until now, that is.

“We’re extremely proud of our deep soil mixing columns as we know they provide clients with an excellent solution for pipeline installation and other ground improvement requirements.

“Results have been very good overall for two utility companies, with a reduced settlement guarantees of less than 15mm and 10mm in 9.0meter depth of peat and 7.0m of soft alluvial respectively.”

Having successfully delivered soil mixing techniques for pipeline projects for utility companies, the firm has the knowledge and expert equipment to ensure the companies benefit in lots of ways.

“Benefits of deep soil mixing include reducing project cost, carbon footprint and timelines,” adds Robert McGall.

“The ground is re-engineered in-situ, removing the need to excavate or import fill. There is no leaching during the installation or later as the mixed soil ages.”

Deep soil mixing techniques have already been used with great success by the company for various projects including strengthening of the sea beds for construction infill work to take place, repairing and realignment of canals, stabilising river embankments even when slippage has occurred, providing impermeable barriers to stop leaching of contaminants, construction of cofferdam infrastructures, reduction of settlement to small structures, sea defence works, and flood prevention schemes.

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September 2020

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