SERVICES

Trenchless Services we can provide?

 
 

Trenchless pipe rehabilitation is a modern, cost-effective method for restoring aging, damaged, or deteriorated pipelines without the need for extensive excavation. Unlike traditional pipe replacement, trenchless technology minimizes surface disruption, reduces project timelines, and delivers a more sustainable solution for critical infrastructure.

CIPP Process:

1.Initial Assessment and Inspection

2. Cleaning and Surface Preparation

A clean and debris-free pipeline is crucial for the success of the CIPP process.

  • High-Pressure Water Jetting: 
  • Mechanical Cleaning: 
  • Final Inspection:  

3. Liner Preparation

4. Insertion of the Liner

The resin-saturated liner is inserted into the existing pipeline using one of two primary methods:

5. Curing the Liner

The resin is cured (hardened) to form a solid pipe within the existing pipeline. The curing method depends on the type of resin and project requirements:

6. Reinstatement of Connections

7. Quality Assurance and Testing

 
BRUSH
Converter 2
solid

Step-by-Step CIPP Process

1.Initial Assessment and Inspection

Before starting the CIPP process, a thorough inspection of the existing pipeline is conducted to evaluate its condition and identify specific defects.

  • CCTV Inspection: A high-definition camera is inserted into the pipeline to capture real-time visuals of internal damage, such as cracks, leaks, or blockages.
  • WRc Reporting: The findings are documented in a detailed report, categorizing defects and helping determine the suitability of the CIPP method.
  • Preliminary Measurements: Pipe dimensions, material, and alignment are carefully measured to ensure the proper fit of the liner.

2. Cleaning and Surface Preparation

A clean and debris-free pipeline is crucial for the success of the CIPP process.

  • High-Pressure Water Jetting: Removes sediment, grease, and other debris from the pipe interior.
  • Mechanical Cleaning: Specialized tools are used to remove tougher obstructions, such as roots or hardened deposits.
  • Final Inspection: Another CCTV inspection is performed to verify cleanliness and ensure the pipe is ready for lining.

3. Liner Preparation

The CIPP liner, typically made of flexible felt or fiberglass, is impregnated with a thermosetting resin and tailored to fit the existing pipeline.

  • Resin Impregnation: The liner is saturated with a specific type of resin (e.g., epoxy, polyester, or vinyl ester) chosen based on the pipeline’s application and environment.
  • Custom Fabrication: The liner is cut and shaped to match the pipe’s diameter, length, and geometry.

4. Insertion of the Liner

The resin-saturated liner is inserted into the existing pipeline using one of two primary methods:

  • Inversion Method:
    • The liner is inverted (turned inside out) using air or water pressure.
    • This method allows the resin to directly adhere to the pipe's interior.
  • Winching Method:
    • The liner is pulled into position using a winch.
    • This technique is ideal for pipelines with complex geometries or significant lengths.

5. Curing the Liner

The resin is cured (hardened) to form a solid pipe within the existing pipeline. The curing method depends on the type of resin and project requirements:

  • Hot Water Curing: Hot water is circulated through the liner to initiate the curing process.
  • Steam Curing: Steam is introduced to cure the resin quickly and evenly.
  • UV Light Curing: UV lamps are used to activate the resin, offering faster curing times and reduced environmental impact.
  • Ambient Air Curing: In some cases, the resin hardens naturally at room temperature.

6. Reinstatement of Connections

Once the liner is fully cured, service laterals and connections covered by the liner are reopened:

  • Robotic Cutters: Remote-controlled cutting tools precisely remove sections of the liner to restore access to lateral connections.
  • Manual Inspection: A final manual or CCTV inspection ensures that all connections are reopened and the pipeline is fully functional.

7. Quality Assurance and Testing

A rigorous inspection is conducted to verify the quality and durability of the rehabilitation work:

    • Pressure Testing: Ensures that the rehabilitated pipe can withstand operational pressures.
    • Leak Testing: Verifies that the pipe is watertight and free of defects.
    • CCTV Inspection: A post-installation inspection confirms the liner’s integrity and alignment.
 

Common Trenchless Repair Techniques

  • Cured-in-Place Pipe (CIPP)
    CIPP is a cutting-edge trenchless technique that creates a new pipe within the old one. A resin-saturated liner is inserted into the existing pipeline, expanded, and cured using heat, steam, or UV light. This method is ideal for addressing cracks, leaks, and corrosion in various pipe materials and sizes.

  • Pipe Bursting
    For severely damaged pipes, pipe bursting is the solution. A bursting head shatters the old pipe while simultaneously pulling a new, durable pipe into place. This method is effective for replacing pipes made of clay, cast iron, or other outdated materials.

  • Slip Lining
    Slip lining involves inserting a new, smaller pipe into the existing one, sealing leaks, and reinforcing structural integrity. Though it reduces the pipeline diameter slightly, it is a reliable solution for pipelines suffering from minor defects.

 
Pipeline Assessment and Inspection
  • Using advanced CCTV inspection systems, we evaluate the interior condition of pipelines with precision.
  • Our team captures high-definition footage to identify defects such as cracks, root intrusions, corrosion, and structural deformations.
  • Inspection results are documented in comprehensive WRC-compliant reports, categorizing issues based on severity and prioritizing necessary actions.
 
  • Based on the WRC report, we design a detailed plan addressing the unique issues of each pipeline.
  • We recommend the best-fit solutions for every defect, considering both immediate and long-term needs.
  • Our planning incorporates cost-efficiency, environmental impact, and durability for optimal results.
 
  • Before any rehabilitation, we ensure the pipeline is thoroughly cleaned to remove debris, sediment, and blockages.
  • Advanced jetting and desilting equipment are used to prepare the pipeline surface for seamless rehabilitation.
 
  • Using Cured-in-Place Pipe (CIPP) technology, we rehabilitate pipelines without excavation.
  • A resin-impregnated liner is inserted and cured within the existing pipe, creating a seamless, corrosion-resistant pipe within a pipe.
  • Benefits include:
    • Minimal disruption to surrounding infrastructure.
    • Long-term durability and improved flow capacity.
    • Suitable for various pipe diameters and materials.