Understanding soil-pipe interaction during cyclic axial displacement is essential for the design and evaluation of buried pipeline systems. This study introduces an efficient practical numerical approach using beam-spring-interface elements to simulate behaviour. Numerical predictions evolution shear normal stress distributions around pipe are validated against full-scale experimental results s...

Subsea pipelines and cables placed in ice-prone regions may be at risk of iceberg damage. In particular, pipes that are not buried come direct contact with keels. Knowing the range interaction forces helps to assess types magnitudes potential Experimental studies provide most valuable data about forces, while numerical modeling give insight into configurations difficult study experimentally. Th...

This paper describes development of a three somites earthworm type mobile inspection robot which is able to move in long pipes. We have many small diameter pipes which are gas or water pipes for individual or corporate houses and boilers or hot water pipes for industries. They are settled in the ground horizontally or in the narrow spaces vertically and some of them are covered by casings or ha...

This article utilizes the experimental method to investigate the thermal performance of heat sinks with one and two pairs of embedded heat pipes. A heat sink with embedded heat pipes transfers the total heat capacity from the heat source to both the base plate and heat pipes, and then disperses heat into the surrounding air via the forced convection. The heat transference from base plate to fin...

Abstract The experimental work of this study deals with the performance pipe in sand various responses subjected to incremental static loading where backfill is reinforced two types reinforcement (geogrid and geocell) investigate effects cover. pipes considered are installed different densities; i.e., loose, medium dense sand, a constant burial depth (2D, D diameter). It was concluded that maxi...


 The main objective of this paper is to investigate the dynamic performance and behaviour glass-fiber reinforced plastic (GRP) mortar pipes under heavy truck loads. According field conditions, a finite element analysis (FEDA) model GRP pipe culverts was established. Modal vibration system carried out, natural frequencies with 26.6Hz,32Hz,35.7Hz corresponding mode shapes were obtained. On ...

One approach to solve the end to end (E2E) quality of services (QoS) problem of multimedia services delivery over multi-domain IP heterogeneous network infrastructures in a scaleable manner is the establishment of long term QoS enabled aggregated pipes. To allow dynamism, the actual service invocation of these pipes can be made as a separate action from the pipes subscription. This paper propos...

The results of a metallographic study of grey cast iron water pipes are reported. These pipes had been installed between 1885 and 1973 in eight different water systems. Each pipe had been extracted during scheduled maintenance or failure repairs to provide data for a larger study to produce a methodology for determining the residual life of grey cast iron pipes. This metallographic study was co...

Buried continuous pipelines are prone to failure due permanent ground deformation as a result of fault rupture. Since the mode is dependent on number factors, probabilistic approach necessary correctly compute seismic risk. In this study, novel method estimate regional risk buried presented. The assessment thereafter illustrated for gas in City Victoria, British Columbia. example considers haza...