Validated 3D solid finite element (FE) models offer an accurate performance of buried pipelines at earthquake faults. However, it is common to use a beam–spring model for the design pipelines, and all guidelines are fitted this modeling approach. Therefore, study has focused on (1) improvement techniques in FE approach reproduction realistic (2) determination appropriate damage criterion models...

Subsea pipelines buried in the seabed may undergo large lateral displacement under environmental, operational, and accidental loads at different interaction rates hence drainage conditions. The undrained shear strength is commonly used practice to assess pipe-soil assuming a sufficiently high rate. This approach neglects consolidation effects rate-dependent response of soil significantly undere...

During long-term service, buried pipelines are subjected to complex combined loads, including internal and external loads pipe–soil interactions. In this paper, a multisensor monitoring network is proposed for the structural health (SHM) performance assessment of metallic in complicated stress state. However, general, longitudinal bending axial thermal cannot be directly obtained by separately ...

BACKGROUND Ground source heat pumps is a building energy conservation technique. The underground buried pipe heat exchanging system of a ground source heat pump (GSHP) is the basis for the normal operation of an entire heat pump system. METHODS Computational-fluid-dynamics (CFD) numerical simulation software, ANSYS-FLUENT17.0 have been performed the calculations under the working conditions o...

Ground Penetrating Radar is becoming increasingly popular to use as a non-destructive assessment method for investigating reinforced concrete structures. The large amount of data collected take significant level of experience to interpret. Ground Penetrating Radar scans of concrete produce images which are made of arc segments. The shape of each arc is determined by the shape of the object, pos...

Buried infrastructures like sewers and water mains have to be checked for their current condition. Cracks are a strong indicator for the condition of a pipe. An affordable way to detect those cracks is to take images of the pipeline and use image processing techniques to detect cracks in these images. The methods used to accomplish this task are mathematical morphology and curvature evaluation ...