Field surveys and investigations
Surveys, inspections and subsurface studies help identify existing utilities, conflicts, ground conditions and risks before trenchless work begins.
Technical applications
Technologies presented by ABRATT
Explore solutions used to investigate, install, rehabilitate, replace and protect underground networks with less surface disruption.
Sliplining
A lining method that inserts a new, usually smaller-diameter pipe inside the existing line for rehabilitation or replacement.
Close-fit Lining
A close-fit system in which a pipe is temporarily deformed or reduced and then restored to fit tightly against the existing pipeline.
Spray Lining
An internal sprayed lining, generally cement mortar or resin, used to protect pipelines from corrosion and minor leakage.
CIPP — Cured-in-Place Pipe
A resin-impregnated liner inserted into the existing pipeline, expanded against its walls and cured in place.
Localized repairs and sealing
Techniques for correcting point defects, sealing joints or rehabilitating specific sections without treating the entire pipeline.
Large-diameter pipelines and manholes
Solutions for rehabilitating large-diameter pipelines and manholes, including structures that allow man entry where applicable.
Pipebursting
In-situ replacement in which the existing pipe is fractured while a new pipeline is installed along the same alignment.
Impact Moling
Percussive boring mainly suited to short-distance installations, crossings and small underground networks.
HDD — Horizontal Directional Drilling
Guided drilling for installing ducts, pipelines and cables, with trajectory adjustments to avoid obstacles and complete crossings.
Pipejacking and Microtunnelling
Direct installation methods in which pipes are hydraulically jacked from launch shafts while excavation is controlled underground.
Benefits of trenchless methods
Why use Trenchless Technologies
These methods can reduce impacts, preserve surrounding areas and make underground interventions more efficient in different urban contexts.
1.
Lower urban impact
Less disruption to traffic, businesses and activities around the intervention area.
2.
Less surface intervention
Reduced need for long stretches of excavation and open trenches.
3.
Faster execution
Methods that can shorten intervention periods in different infrastructure contexts.
4.
Preservation of surroundings
Less alteration to pavements, developed areas and existing structures.
5.
Reduced social impacts
Less disruption to mobility, property access and community routines.
6.
Technological development
Application of specialized techniques, equipment and expertise in underground infrastructure.