Static pipe bursting

Leaking pipelines caused by cracks, settlements or root infestations force utility companies to take action. This often raises the question: Repair Renovation or Renewal?

Trenchless pipe renewal is an opposing method to the open-trench method which involves traffic disruption, noise immission loads, dust and surface disruption, danger of damages to existing pipes and cables, intervention in ground water and soil, storage and transportation of the excavated soil.

Trenchless pipe replacement using the static pipe bursting technique:

When replacing pipes with the static bursting technique, a bursting rod is pushed from a start pit (manhole) through the old pipe into a target pit (manhole).

On arrival in the target pit the bursting blade with the new pipe connected is attached to the rod string. When pulling back the rod string the old pipe is destroyed with tough material like steel, ductile iron or PE being cut and brittle material like grey cast, stoneware or concrete being burst by the bursting blade. The pipe fragments are displaced into the surrounding soil and the new pipe - of equal or larger diameter - is pulled in simultaneously. Usually long plastic pipes are pulled in - in narrow spaces also short pipe modules can be installed.

Meanwhile the static pipe bursting method is the most commonly used technique worldwide for renewing. Out of a minmally dimensioned pit the QuickLock bursting rods are pulled in with GRUNDOBURST. With the pipe bursting method gas and sewage pipes (pressure pipes) as well as sewage pipes can be replaced. New pipes of almost any material (mainly plastic pipes) can be installed. Daily capacities of up to 150 m are possible.

VIDEO

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Advantages

• Due to the maximum daily capacity of more than 200 metres the static pipe bursting technique is definitely more cost-efficient than ope trench replacement
• Even suitable for innercity pipe renewal
• Installation quality is similar to open trenching (even offset bends can be evened out)
• New pipe with up to 100 years of service life (plastic pipes according to manufacturer's specifications)
• Significant reduction of site traffic and truck rides
• Low emissions, high quality and safety standards
• Construction times are reduced by up to 50 %
• 90 % less excavated material
• Safe application according to the latest technical standards
• With more than 50.000 km the most frequently applied pipe renewal technique worldwide