Disclaimer
Contact
Micropiles
Con tech Systems

Dimensioning of the Internal and External Carrying Capacity

Internal Carrying Capacity

External Carrying Capacity

Calculation Example

Calculation Example and Data

Load Transfer Length, L, of Piles

from the external carrying capacity of the grout body

 

Diameter, D, of Grout Body

D = 1.5 * d = 0.14 m

1.5 = enlarging (reaming) factor for sand
d = 0.09 m, drill bit diameter

 

Anti floating, securing a concrete foundation with TITAN injection piles:

  • Design Load: Fw = 270 kN
  • Medium dense Sand ->
    Safety Factor S = 2 to DIN 4128

Material:

  • TITAN injection piles 40/10
    internal carrying capacity
    Fperm = 306 kN > Fw = 270 kN
    cross cut bit of 90 mm (0.09 m) diameter

 

Load Deformation Chart (28784 bytes)

Load-Deformation Chart
(click the diagram to enlarge)

of 7 m long grouted piles in the same silty sand, solid steel bar 40 mm diam. with cased hole, not pressure grouted versus TITAN 73/53 with grout flushing W/C ratio 0.7 and final grout W/C 0.4 pressure grouted at max 60 bars.

Pile Resistance (59293 bytes)

Pile Resistance
(click the diagram to enlarge)

(external carrying capacity)

<--- Internal Carrying Capacity
<--- External Carrying Capacity

 

©Con-Tech Systems 31-May-2005

Back to Top