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A: Tube hoisting
Do not unload a tube by penetrating its both ends.
B: Tube unloading
A tube shall be unloaded manually or with a forklift. Do not push the tube down the ground from the truck.
C: Tube transport and storage
(1) For long-distance transport of tubes of different diameters, the method of containment can be used.
(2) When a tube is placed on the ground directly, the ground shall be flat. All piled-up tubes shall be chocked to avoid rolling.
(3) Sleepers shall be used for every layer so piled at a spacing of less than 1/2 of the tube length. The tube piling height shall not exceed 2m.
D: Tube installation
(1) The sunk ion method is most frequently used in the installation of cable guides.
(2) When it is necessary to go through a railway or road, follow the requirements of the competent authorities.
(4) Groove bottom width b≥d+200.
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