Soil and pipe inspection for trenchless pipe construction with GPR case histories from projects in Barcelona

Vast portion of trenchless pipe building and the mass of pipes, underground buildings and other subsurface infrastructure, cause non destructive fast methods to get detailed information of the underground for network planing and constructing. Especially in city center areas network planning is employing, and conventional civil engineering often cannot achieve the necessary accuracy. the network construction normally is based on incomplete or inexact documentation material. Ground Penetrating Radar (GPR) is the only technology beside expensive test pits that provides detection of all kinds' of underground supply pipes, sewer systems and soil variations.