User's Manual

IDS Ingegneria Dei Sistemi S.p.A. N doc: MN/2009/028 - Rev. 1.1

DETECTOR DUO SYSTEM – User manual

APPENDIX A - THE PRELIMINARY INVESTIGATION

The first fundamental phase for any field survey consists in the

preliminary investigation: its scope is to acquire all the necessary

information for the logistics of the operation, taking into account the

objectives to be performed.

In the specific case of a georadar investigation for underground

utilities searching, the first thing to consider is the accessibility of the

site, in terms of taking into account the space available for the passage

of the antenna trolley and considering any architectural obstacles that

could cause an obstacle to the data acquisition phase. Often, in fact,

the investigation is performed in streets, squares and on pavements

with a relatively high level of urban traffic, and above all, in the

presence of randomly parked cars.

The main points to be considered during this phase are described

below:



Specific permissions must be obtained (access to pedestrian

zones, permission to interrupt the traffic flow, etc.);



Any difficulties in accessing the site must be considered;



The space available;



The presence of parked cars;



The level of traffic;.

It is the task of the user to take these points into consideration when

programming the work.

APPENDIX B - THE TECHNICAL MAPS

Technical maps of the existing utilities are produced by the various

utilities companies.

These give general indications in a schematic way about the type and

position of the utilities that are managed and/or have been constructed

by them.

These maps can be requested by faxing or writing to the cartographic

or planning office of the companies, specifying clearly the streets and

areas of interest.