In this paper, a two-dimensional numerical model for wave-seabed-pipeline interaction is developed to examine the wave-induced uplift force onto pipelines buried in sloping seabeds. The Reynolds-averaged Navier stokes equation and poro-elastic are used simulate wave motion seabed response, respectively. Meanwhile, pipeline considered be elastic. Firstly, three laboratory experiments taken verif...

The current study investigates the capacity of proposed meta-material layout for blast protection above-ground steel pipes against explosions. philosophy layout’s design is described adequately, and 1D periodic structures’ theory adopted analytical prediction band-gaps. special characteristics loading are explained, specific time-related parameters calculated. tested numerically nine explosion ...

Abstract Background At present, microorganism has been considered as important factors that threaten to buried pipelines with disbonded coatings. Aiming at the problem of unknown corrosion mechanism sulfate-reducing bacteria (SRB), a series studies have carried out in this paper. Spectrophotometer and fluorescent labeling technology are used study growth attachment SRB simulated soil solution. ...

This paper reports on preliminary yet consistent studies and results around the concept of meta-material applied to protection buried gas transmission pipelines. The capacity proposed layout in attenuating dissipating energy induced by a surface explosion is described general terms, then it examined for set nine realistic cases. formulation band gaps, which are considered zones mitigation incid...

The seismic behaviour of underground structures is generally satisfactory compared to the above-ground ones. However, despite of the buried structure confinement, in recent strong seismic events some underground structure as tunnels, pipelines and tanks suffered high damage; for this reason, a strong effort is focused to evaluate the seismic vulnerability of these structure and to give codes in...