Factory Wholesale PriceList for PPR-AL-PPR Pipe to Buenos Aires Factory

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  • The TOMAS Surface Tunneling technology is based on three innovations:

    1. Building a semi circular tunnel from the surface in soils with high water table without draining or pumping out the sub-surface water.
    2. Removing the soil mixed with water within a half round shield with standard cutter dredging technology adapted for this application.
    3. Using standard segmented tunneling sections to shape the tunnel, but fixing these segments with post-tensioning under a continuous precast or cast on site concrete beam fixed and supported or held by rakes of piles.

    Benefits of this technology are:

    - Short construction time because of fast building (50-80 mtrs/day)
    - Low investment cost
    - Limited construction space required
    - No ground dewatering required
    - Soil removal by dredging is the cheapest way of moving soil
    - Material transport can be done through finished tunnel
    - Minimum impact on the environment
    - Use is made of well-known technologies
    - Innovative construction method with international potential

    Current contact for technology licensing:
    Ing. Jaap H. Ketel,
    NEDLAND BV
    3831 PB LEUSDEN
    The Netherlands
    Tel. +31.33.43 43 500
    Fax. +31.33.43 43 501
    Mob. +31.6.532 61 771

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