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Vacuum preloading method

  •  
    PRINCIPLES
    The methodology of this method is that a vacuum pressure is created by vacuum system, and soil mass is isotropically compressed, which generates negative porewater pressure whereas the total stress remains so that the effective stress increase, as the result the consolidation degree in soft soil is dramatically accelerated.

    Desprite of new method immigrated into Vietnam, this solution has been using in various big projects overall Vietnam because of effectiveness on quality schedule.


    EXTENT APPLICATIONS
    Apply effectiveness for success in the process daemon Đất elements and much elements:

    - Road and hightway, access road
    - Industrial projects, storage and warehouse
    - Reclamation area
    - Low rise buildings and on wide area

    ADVANTAGES:
    - Reduce quantity of sand for additional surcharge
    - Reasonable cost, especially on wide area project
    - Significantly reduce construction time
    - Environment - friendly

    CONSTRUCTION SEQUENCE

    1. FILLING SANDMAT LAYER (COARSE GRAINED SAND)


    2. CONSTRUCTION OF CLAY SEALING WALL AND PVDs INSTALLATION




    3. INSTALLATION OF MONITORING INSTRUMENTS



    4. INSTALLATION OF HORIZONTAL DRAINAGE PIPE SYSTEM




    5. SPREADING OF GEOTEXTILE AND GEOMEMBRANE LAYERS




    6. SETING UP VACUUM PUMPS SYSTEM AND OPERATION


    7. MONITORING, DATA COLLECTION AND ANALYSIS


    Video Construction
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