The detection of underground networks is a major challenge for any public works site. CFI Tech performs non-invasive detection and geo-referencing of buried networks with high precision. The aim of this work is to reduce the damage caused during work on all types of networks: gas and electricity pipelines, optical fibre, Telecom networks, drinking water, sanitation,... We work for all types of actors: local authorities, concessionaires, public works companies, individuals.

Detection of all types of networks

CFI Tech has several facilities for underground network detection work. Our teams can thus detect all types of underground networks by acoustic or magnetic method: public lighting, electricity, gas, drinking water, telecom, tricolor light signaling, sanitation, etc.

Geo-referencing in class A

Our team of specialized engineers and technicians guarantees the optimization of the pre-project phase and the relevance of feasibility studies. The file includes electrical sizing, equipment specification... as well as electrical and wiring diagrams, layout, routing and execution plans...

Further investigation

These mandatory searches are made on existing works and intended to specify their location. They are mandatory when the mapping of sensitive underground networks is not precise enough to carry out the work safely. An effective search for the location of the networks is carried out on behalf of the network operator before the start of the construction in order to precisely locate its networks. For this, 3 accuracy classes A, B and C have been defined by the regulations.

Picket marking

The marking and picketing of the networks is carried out before start-up and is mandatory before any work begins. This intervention makes it possible to trace on the ground a set of information at the positions determined by the mapping. The goal is to leave it visible throughout the construction site to facilitate the work and ensure signage throughout this work.