Pipeline Engineering

This tool performs calculations for pipeline railroad crossing design as per calculation methods published in API RP 1102.

Imperial Metric

Please login and subscribe to unlock this tool

Pipe Nominal Size Select "Custom" for manual pipe OD and wall thickness inputs.

Schedule Select "Custom" from "Pipe Nominal Size" above for manual pipe OD and wall thickness inputs.

Pipe Grade

Specified Minimum Yield Strength (SMYS)

psi

Type of Steel Pipe

Design Pressure, P

psi

Installation Temperature, T₁

°F

Max. or Min. Design Temperature, T₂

°F

Depth of Cover, H

Bored Diameter, B_d

inch

Soil Unit Weight, Y

lb/ft³

Soil Type

Modulus of Soil Reaction, E' (ksi)

Resilient Modulus of Soil, Er (ksi)

Track Type

Design Factor, F

Applied Design Surface Pressure, w

psi

Total Effective Stress Limit in % SMYS

Impact Factor, F_i

Longitudinal Joint Factor, E

Temperature Derating Factor, T

Earth Load Stiffness Factor, K_He

Earth Load Burial Factor, B_e

Earth Load Excavation factor, E_e

Railroad Stiffness Factor for Cyclic Circumferential Stress, K_Hr

Railroad Geometry Factor for Cyclic Circumferential Stress, G_Hr

Railroad double track factor for cyclic circumferential stress, N_H

Railroad double track factor for cyclic longitudinal stress, N_L

Railroad Stiffness Factor for Cyclic Longitudinal Stress, K_Lr

Railroad Geometry Factor for Cyclic Longitudinal Stress, G_Lr

Reference : Table 3, API RP 1102, 7^th Edition, December 2007

PipeEng