Jacking force estimates
Use the table below to decide on your TBM jacking forces. We've found - project references and used these to estimate your pipe jacking loadings.
The nearest standard pipe size is m and we've used this for the estimates below.
Enter a faceload between 0 and 3000kN.
Enter a skin friction between 0 and 100kN/m length of pipe.
Note: Stoppages in jacking can result in higher loads to restart jacking of approximately 25% within an hour and 75% within four hours of a stoppage.