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Article | REF: C5572 V1

Mini and microtunnelers

Author: Françis MAQUENNEHAN

Publication date: February 10, 2001 | Lire en français

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    6. Conclusion

    The box below summarizes the microtunnel technique.

    Uses :

    • sanitation ;

    • wastewater ;

    • rainwater ;

    • drinking water ;

    • ducts for various fluids.

    Current length of a section :

    • DN < 800 mm, from 30 to 100 m ;

    • DN > 800 mm, from 30 to 200 m.

    Ancillary works :

    • working shaft with or without reaction bed, maximum depth 20 m ;

    • wells transformed into manholes.

    Guidance :

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