Pipeline Engineering

Buried Pipeline Strain Assessment Under Landslides

This tool is utilized to estimate the pipe strain demand by considering several established pipe-soil interaction modes, assuming the ground movement occurs perpendicular to the pipeline. The outcomes can aid in assessing pipeline integrity when faced with limited information post-landslide occurrences, enabling pipeline operators to determine necessary safety actions like pressure reduction or shutdown. The reliability of the model estimation hinges on the actual displacement of the pipeline during landslides. For a more comprehensive evaluation of line integrity with additional field data, advanced assessments such as Finite Element Analysis (FEA) may be warranted.

Data Inputs

Select "Custom" for manual pipe OD and wall thickness inputs.
inch
inch
ft
ft
psi

Select Model

Suzuki Model (n = 1)
Suzuki Model (n = 2)
Suzuki Model (n = 3)
M. O'Rourke Model
CRES Model (Fixed End)
CRES Model (Free End)
Choose the most appropriate model by evaluating its ability to realistically represent actual pipeline displacement or predict it in the field. In unknown, consider adopting the CRES Fixed End model or Suzuki (n=3) as it offers a relatively conservative strain demand estimation.

Deflected Pipeline Profiles

Max Soil Displacement

Suzuki Model (n = 1)

Suzuki Model (n = 2)

Suzuki Model (n = 3)

M. O'Rourke Model

CRES Model (Fixed End)

CRES Model (Free End)