Work

External loading-induced deformations of deteriorated pipelines rehabilitated with internal replacement technologies

Year: 2024

Type: article

Abstract: A method is presented for estimating deformations due to external lateral loading for full-scale laboratory performance testing of host-internal replacement pipe (IRP) systems. Soil displacements associated with traffic loading and adjacent excavation are described analytically based on prior research. A beam-on-springs finite element (FE) model is developed to represent buried, jointed cast iron (CI) pipelines that have deteriorated and been retrofitted with IRPs. The FE model explicitly accounts for structural contributions of the IRP to the barrel, joints, and discontinuities of the host pipe. The model is verified with past analytical, FE, and experimental results. Using the verified model, a series of charts and relationships are provided to inform full-scale performance testing of IRP materials for a wide range of diameters, thicknesses, and material properties.

Source: Tunnelling and Underground Space Technology

DOI: 10.1016/j.tust.2024.106272

Authors: Jacob Klingaman, Brad P. Wham, Patrick G. Dixon, Shideh Dashti

Institution: University of Colorado Boulder

Language: English

Topic: Geotechnical Engineering and Underground Structures

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: hybrid

Estimated APC paid: $3,560