UAV mapping of the landslide on the highway under construction for geological survey in Czech Republic

At the end of May 2014 was conducted by UPVISION (the largest unmanned aerial system (UAS) company in the Czech Republic) using unmanned aerial vehicle, complete monitoring landslide at highway D8 ​​, where is now completing the geological survey.

Oblique image landslide

Slope landslide buried the D8 highway under construction last June 7^th 2013, after heavy rains in Litochovice village, nearby the Litomerice city.

Highway D8 has to connect Prague with north-west Czech agglomerations and Saxony in Germany. About the route through the Czech Central Mountains are disputes since the 90s years. Meanwhile, vehicular traffic to the north Germany thickened, that the both detours through Usti nad Labem and Teplice cities, passes for 10 000 cars a day.

Unmanned aerial vehicle own made UPVISION

In addition to classic aerial photographs and aerial video of the landslide, to real overview of the current situation, was also conducted mapping flight by unmanned aerial vehicle, during which a whole location was mapped near the landslide, including the adjacent quarry.

3D points cloud

Orthophotomap (7 cm/px resolution)

The collected data was created in the image resolution orthophotomap 7 cm/pixel , digital surface model as a point cloud and 3D model.

Digital elevation model

These complex data visualization in addition to the actual space can be used for technical applications, such as vectorization in the range of digital maps, the landslide volume calculations , terrain profiles , point clouds in high definition, but also as a basis for the actual geological surveys, etc.

“All this can be obtained from one short flight unmanned aerial composition which is dispensed into the air directly to the destination and within one hour of the field work done”, said Jakub Karas (UAS manager, UPVISION).

Hexacopter pilot and operator (Jakub Karas UAS manager – on the left)

The actual mapping UAV is a very effective tool for obtaining complex data with a focus on speed and especially efficiency.

Tags: geological survey, Landslide, UAV

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