Trenchless methods offer a versatile solution
for rehabilitating existing pipelines under diverse conditions. These techniques
are especially advantageous in urban settings, where traditional construction
methods can severely disrupt business operations, residential areas, and both
vehicular and pedestrian traffic.
Additionally,
the presence of other underground utilities and existing infrastructure poses
significant challenges for conventional excavation and replacement approaches. Consequently,
trenchless techniques are frequently employed in such scenarios. In general,
trenchless sewer rehabilitation methods necessitate less installation time, and
consequently, reduced pumping time compared to traditional excavation and replacement
methods.
We have the following experience in the design and execution of the following methods (inside and outside the US):
CIPP Cured-in-Place Pipe: A seamless rehabilitation method using resin-impregnated liners, CIPP offers a joint-free
solution for pipes.
Sliplining: This approach involves inserting a smaller pipe into a larger one and can be effective for structural
rehabilitation.
PE or PVC Spiral Wrapping: This technique creates a liner within the pipe, using interlocking strips of PVC or HDPE. Its
adaptability to various geometries makes it versatile.
Folding and formed liner: Ideal for smaller pipes, this method uses flattened or folded PVC or HDPE pipes. It offers a
balanced approach between ease of installation and impact on capacity.
Geopolymer Liner: A high-strength mortar, geopolymer is applied as a liner. Its corrosion resistance and durability
characteristics make it a powerful solution.
Epoxy and polyurethane coating: Offering a range of applications, epoxy coatings provide structural or non-structural
solutions with high corrosion resistance.
Pipe bursting: Although technically a replacement method, pipe bursting may be considered due to its
trenchless approach. Its suitability depends on factors such as alignment and proximity to the utility.
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