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Tubos Micropilotes - Tubos Subterráneos

TUBES FOR MICROPILESMost common uses and applications

The most common uses and applications are:

  • Building refurbishments
    • Underpinnings
    • Reinforcement of foundations in building extensions
    • Deep foundations in plots of land
    • Underpinning and propping of existing foundations for basement excavation
  • Diaphragm walls in confined spaces
  • Roadway slope stabilisation
  • Umbrella pipes for tunnel mouths
  • Deep foundations
  • Solar and thermosolar plant foundations
  • Wind farm foundations

CharacteristicsTechnical specifications

  • Length up to 12 metres
  • Yield point ≥ 552 Mpa
  • Tensile strength ≥ 689 Mpa
  • External tolerance Ø  ± 1%
  • Thickness tolerance ± 12.5%
  • Suitable for welding

Threaded connectionsAccording to needs

We deliver the pipes with different joints taking into account the needs of each client and each project:

Tubos Micropilotes - Tubos Subterráneos

Male – Female

Tubos Micropilotes - Tubos Subterráneos

Male – Male / Outer Sleeve

Tubos Micropilotes - Tubos Subterráneos

Female – Female / Inner Sleeve

We supply 4 threads per inch of 60 mm length square profile screw threads.

As an alternative option, we also offer special screw threads of:

  • Double inlet, specifically for umbrella pipes in tunnels
  • Round profile
  • Made to measure thread length

DimensionsTechnical table

Measurement Section Weight Load
Diameter x thickness (mm) (cm2) (kg/m) (Tonne)
60,3 x 5,5 9,47 8 28
73 x 6 12,63 11 37
88,9 x 7 18,01 14 50
88,9 x 9 22,59 19 64
101,6 x 7 20,80 17 59
101,6 x 9 26,18 21 72
114,3 x 7 23,60 19 66
114,3 x 8 26,72 22 73,74
114,3 x 9 29,77 24 83
127 x 9 33,36 28 94
139,7 x 9 36,95 31 106
139,7 x 11 44,48 36 122,75
177,8 x 9 47,73 38 131,73
177,8 x 10,5 55,19 44,50 152,32

 

* For other measures, please enquire.

Steel GradesTechnical table

EN 10025 API 5CT Yield point min. Tensile strength Min. elongation
N/mm2 N/mm2 %
S235 235 340-470 26
S275 275 410-560 22
S355 355 490-630 22
J55 379 517 24
K55 379 655 19
N80 552-758 689 18

 

* This table shows the most common steel grades and their mechanical characteristics.