Read about START-PROF pipe stress analysis software
This analysis provides approximate calculations for:
Maximum allowable length of straight buried pipe sections based on strength criteria
Distance to virtual anchor point (zero displacement location)
Maximum pipe end displacement
The analysis also calculates anchor loads for specified section lengths.
Input data can be copied using the 
toolbar icon and transferred to other START-Elements analyses using the
toolbar icon.
Property |
Description |
External diameter, D |
External pipe diameter |
Pipe wall thickness, S |
Nominal wall thickness |
External casing diameter, Dc |
External insulation casing diameter. Set to 0 for uninsulated pipes. |
Casing thickness, SC |
Insulation casing thickness |
Depth, Z |
Depth from soil surface to pipe centerline |
Ambient temperature |
Average wall temperature during pipe assembly. More... |
Operation temperature |
Operating temperature in operating state. More... |
Uniform pipe weight |
Uniform weight of piping and attached equipment. More... |
Uniform insulation weight |
Uniform insulation weight. More... |
Uniform product weight |
Uniform product weight. More... |
Operation pressure, P |
Operating pressure in operating state. Required for all standards except SNIP 2.05.06-85. More... |
Insulation type |
Armopenobeton, polymer, polyurethane, or other. For polyurethane, casing diameter DC and thickness SC auto-populate from database. For other types, enter manually. |
Backfill soil number |
Trench soil type from soil database |
Base soil number |
Native (undisturbed) soil type from soil database |
Steel grade |
Pipe material from materials database |
Analysis results include:
Property |
Description |
Maximum extension of compensation zone |
Pipe end displacement after thermal expansion |
Friction |
Uniform soil-pipe friction force |
Anchor Load |
Maximum allowable longitudinal anchor force |
Pipeline maximum length |
Maximum straight section length without expansion joints |
Pipeline virtual anchor length, La |
Distance from pipe end to zero displacement point (sliding zone length). See also |
Maximum stress |
Maximum equivalent pipe stress |
Allowable stress |
Allowable stress per GOST R 55596-2013 and RD 10-400-01 (1.5[σ]), or design resistance per SNIP 2.05.06-85
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Pipe. Buried > Pipe Elongation
- for buried pipelines