info@geotunnel.sa
+966 112248194
info@geotunnel.sa
+966 112248194
Due to improvements and market requirements, Geotunnel has been utilizing the most updated technology of CCTV pipeline surveying the IBAK PANORAMA. This technology, unlike conventional sewer inspection systems, uses two high-resolution digital photo cameras with 185° fisheye lenses installed front and back of the camera tractor.
Photos are shot at 5 cm intervals and the photos from the front camera are combined with the corresponding photos from the rear camera. This generates what are called spherical images and these enable a true 3D interior view of the sewer to be created.
It is the process of cleaning the tunnel line with high-pressure water jetting, with variety of nozzles based upon the length and diameter of the pipe and the application required such as silt clay, grease, debris, root cutting and etc.
When there are defects in the pipes, the common method of repair is Patch Lining. The Patch Liner system is generally used for trenchless completed works to avoid rectification by destruction and excavation of the line, and is facilitated by inflating new epoxy tubing and curing it into place.
In contrast to the open-cut method, the advantages of Patch Repair with short liner methods are numerous. For example, there is no need to break up the soil, which minimizes restrictions on sidewalks or road traffic. Construction debris, dust, and noise are also reduced. There are no changes in structural engineering due to deep excavations, and the construction time is shortened. As a result, the short liner method is many times more economical than the complete replacement of pipes using the open cut method.
Trenchless technology enables repair and replacement with little to no digging required. Pipe rehabilitation can usually be carried out from manholes. Geotunnel’s Patch Liner can repair structural defect locations inside the pipe i.e. cracks, water leak, fracture, faulty joints and etc. Our system consists of non-foaming resin components and fiber rolls with good adhesion even to damp surfaces for the rehabilitation and sealing of pipes and sewers.
Cured-in-Place is a soft lining pipe that is very strong after curing. It is the creation of a new pipe from an existing pipeline by inserting a resin impregnated polyester felt liner under pressure. The lining then is being cured by Ultraviolet-UV light.
UV light curing technology is a kind of overall pipe restoration technology, which is to inject a light-curing resin into a soft pipe made of glass fiber, then pulling it into the original pipe. Inflating this long resin to expand with the pipeline, molded with the internal diameter of the pipe. After inflation, the original pipe will serve as the outer film and the resin will be the inner film or the soft pipe.
Closing the ends of the pipeline while the UV light curing instrument is inside the line, then to apply UV light for resin curing and form a composite liner pipe. Geotunnel’s installed and cured liner is chemically resistant to exposure to sewage and sewage gases as experienced with the high temperatures in the Middle East.
After curing of the resin, the minimum flexural strength is up to 31 N/mm2 with Tensile Strength of 21 N/mm2. Depending with the thickness of the resin, it can reach up to more than the standard strengths.