From the launch pit, the pipe will be clamped and pushed by a pipe thruster. A micro tunneling boring machine (MTBM) is mounted in front of the pipe head to drill the soil and can be steered to follow the designated drilling geometry. With the Direct Pipe method the borehole can be drilled while at the same time the pipeline is installed.

Calculation of support pressure and thrust force with the Direct Pipe module

The Direct Pipe module in D-Geo Pipeline features the calculation of support pressure and thrust force of the pipe thruster. The effect of buckling on the pipe and installation in segments are taken into account with the thrust force calculation. The additional stress on the pipe wall due to buckling is calculated with the pipe stress analysis.

Screen output - examples

Face support pressure calculation d-geo pipeline
Face support pressure calculation

Thrust forces calculation d-geo pipeline
Thrust forces calculation

The Direct Pipe module is available as part of the D-Geo Pipeline Full Package.

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