PTP 070 tunnel

The side parts must be made of HDPE with a multilayer structure of various colors with a thickness of not less than 10mm - high density polyethylene without toxic components, the casing with a minimum thickness of 15mm. Metal legs must be made of steel with minimum dimensions of 30x30mm, with minimum thickness of 2mm, and metal circles made of pipe with minimum dimensions of 8x40mm and do not allow disassembly without specific tools.

The metal elements need to be sandblasted and painted in an electrostatic field, in two layers with a minimum thickness of 100 microns to give them resistance to the external environment.

Materials used: steel, HDPE, galvanized fasteners.

To avoid ingress of rainwater, screw connections must be covered with plastic caps.

Technical characteristics: General dimensions of the construction, no less than: Length – 1030 mm, width – 1050 mm, height – 1240 mm.

The foundation of the construction will have minimum dimensions of LxWxH=300x300x500 mm.

Requirements for installation: To ensure safe and reliable operation, all supporting elements are to be deepened into the soil (earth) not less than 0.50m to increase rigidity, then following the concreting process (concrete BC 300). The assembly of the elements must exclude the possibility of their disassembly, without the use of special purpose tools.