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In order to reduce the impact on everyday life at pipe-laying sites, the technology of trenchless laying is being used more and more often. More and more administrators in our cities understand how important it is to limit the inconvenience that a construction site with traditional laying involves for the community. The quality of life is more and more a determining parameter of evaluation. The queues, the problems of accessibility to structures and commercial activities and the prolonged inconveniences caused by construction sites located in areas with a large population or of great economic importance are a valid reason to replace the traditional laying of pipes with the technology of microtunnelling, which proves to be socially more convenient than traditional laying.
The traditional construction site is intrusive in the daily life of those who live nearby, while the jacking pipes are laid without being aware of the progress of the site. The only visibility is given by the presence of the push shaft, where the pipes are positioned and pushed and at the same time the excavated material is extracted.
In the case of laying long sections of pipe, the push is relaunched through intermediate shafts thanks to which it is not necessary to create intermediate wells in order to distribute the push of the pipe.
| » | concrete resistance C40/50 with double steel rebar B450C |
| » | joint system with steel ring type S275JR chamfered, painted and embedded during casting and an elastomeric rubber gasket SBR-40 with wedge-shaped sealing section mounted on the male joint |
| » | lifting anchors of adequate capacity that, used with special handles, allow handling and laying in total safety, with a safety coefficient greater than 3 |
| » | equipped with a wooden ring to distribute the thrust and the possibility of the appropriate lubrication valves |
Our pipes can also be supplied in the HDPE-lined version with an internal lining of polyethylene HPDE T-Grip, with the possibility of welding of the joints performed by our qualified personnel with a regular license with the extrusion method according to UNI EN 13067 for Class 7 PE 7.5+3 PE 3.2 and DVS 2212:2008 for class II-1.1 in order to protect the pipeline and ensure absolute watertightness from both inside and outside.
The Bangkok Metropolitan Administration has chosen this technology to build the city's new 120km-long sewer system. These jacking pipes were built with the same Pedershaab machines, with concrete prepared with the same Skako plant, and protected on the inside with the same T-Grip HDPE liner produced by Doha Waterproof Factory.
The experience acquired by COPREM with kilometers and kilometers of pipes and box culverts lined with HDPE liner is finally available to all companies that until now could only use traditional concrete and PRFV pipes for microtunneling.
COPREM Technical Department is at the complete disposal of customers to discuss in detail any need for concrete protection and sealing in pipelines, always guaranteeing the best cost/performance ratio.
