Giant-sized TNB Manhole Series

  1. General Details

    The giant-sized manhole is a working chamber that provides access for electrical maintenance works.  The precast giant-sized manhole offers a cost-saving and time-efficient solution. It is designed in parts and panels that can be easily installed on site with minimal construction waste.

     

    External Dimension including Cover Internal Dimension Cover Type / Thickness
    2200 (L) x 2200 (W) x 2200 (H) 1800 (L) x 1800 (W) x 1800 (H) Slab Top: 200 / Cast Iron: 200
    2200 (L) x 2800 (W) x 2200 (H) 1800 (L) x 2400 (W) x 1800 (H) Slab Top: 200 / Cast Iron: 200
    2200 (L) x 2800 (W) x 1600 (H) 1800 (L) x 2400 (W) x 1200 (H) Slab Top: 200 / Cast Iron: 200
    2900 (L) x 1700 (W) x 1700 (H) 2400 (L) x 1200 (W) x 1200 (H) Slab Top: 250 / Cast Iron: 250
    2900 (L) x 1700 (W) x 2400 (H) 2400 (L) x 2400 (W) x 1200 (H) Slab Top: 250 / Cast Iron: 250
    2900 (L) x 2900 (W) x 2300 (H) 2400 (L) x 2400 (W) x 1800 (H) Slab Top: 250 / Cast Iron: 250
    2900 (L) x 2900 (W) x 3500 (H) 2400 (L) x 2400 (W) x 3000 (H) Slab Top: 250 / Cast Iron: 250
    3500 (L) x 3500 (W) x 1700 (H) 3000 (L) x 3000 (W) x 1200 (H) Slab Top: 250 / Cast Iron: 250
    3500 (L) x 3500 (W) x 2300 (H) 3000 (L) x 3000 (W) x 1800 (H) Slab Top: 250 / Cast Iron: 250
    3500 (L) x 3500 (W) x 3500 (H) 3000 (L) x 3000 (W) x 3000 (H) Slab Top: 250 / Cast Iron: 250

    Notes:

    1. All precast manholes are designed in accordance to the guidance in BS 8810.
    2. All dimensions are in millimetre unless stated otherwise.
    3. Main reinforcement is made from high tensile steel bar in accordance to BS 4449 and BS 4461.
    4. Able to withstand loading of 22.5 metric tonnes axle load.
    5. Concrete cube strength is 30 MPa.
    6. Duct entry diameter comes in either 100mm or 150mm.
    7. A Product Certificate as proof of authenticity will be issued for all manhole products.
    8. Precast concrete manhole installation and assembly training can be provided upon request.

     

  2. Product Enquiry

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