Safety Assessment of Mooring at Anchor under Stormy Weather

Offshore anchor piles under mooring forces: numerical modeling

A parametric study was carried out to study the behavior of offshore anchor piles under mooring forces in dense sand using a three dimensional (3-D) finite element model (FEM). The Mohr–Coulomb plastic model has been used to model the soil, and has been calibrated based on the centrifuge tests discussed in a Ph.D. thesis (published by Ramadan in 2011). The selection of model parameters and comp...

Offshore anchor piles under mooring forces: centrifuge modeling

Offshore anchor piles are seafloor moorings that keep the position of floating structures during a harsh environment. These piles are usually subjected to a wide range of monotonic and cyclic lateral-to-oblique pullout forces. Centrifuge tests were carried out to study the behavior of offshore anchor piles under mooring forces in saturated dense sand. The tests were carried out at different loa...

Stormy weather for Labour's NHS reforms.

Climate change and infectious disease: stormy weather ahead?

Extreme weather events are becoming more intense, and are likely to become more frequent as the world climate changes.1,2 For epidemiologists, one important aspect of these trends is their impact on infectious disease. In this issue of EPIDEMIOLOGY, Woodruff et al.3 demonstrate a strong association between heavy rainfall and outbreaks of Ross River virus disease. Ross River virus is mosquito bo...

Mooring Line Reliability Analysis of Single Point Mooring (SPM) System under Extreme Wave and Current Conditions

Single Point Mooring (SPM) is a type of offshore facility that is used for the loading and unloading of oil and gas tankers in the sea. In Iran, it is briefly called “floating buoy”. The present study discussed floating type, fixed to the seabed with mooring chain. The mooring chain of SPM, which is considered one of the important parameters of its design, will be evaluated with reg...