GPR applications in geotechnical investigations of peat for road survey purposes

One third of the land area in Finland is covered with peat and there are parts of Northern Finland where mires can account as much as 50-70 0,10 of the land area. Even though efforts have been made to construct most of the roads on a hard and bearing soil there are hundreds of kilometers of roads and highways in Finland built over peat bogs, most of them resting on the peat itself.