In pipeline transportation of slurry, the existing calculation models of critical deposition velocity face the problem of different model forms only suitable for specific conditions. To address this problem, this paper uses improved “shuffled frog leaping algorithm” (SFLA) to optimize the parameters of the computational model in order to calculate critical deposition velocity. This has been fou...

Cutter Suction Dredgers (CSDs) are a special type of ships designed for construction and maintenance projects ocean offshore engineering. During the dredging operation, CSDs can excavate nearly all kinds soil on sea bed, then dredged materials with coarse particles need to be sucked up by slurry pump transported disposal area through long-distance pipeline. In order avoid sedimentation in pipel...

At designing pipeline transport of granulated solid materials, one of the most important parameter is the pressure loss over a given length of pipe. The pressure loss determines the applicable pump as well as the main portion of the operational costs. In the practice the transported solids can be characterized by size, density and shape distributions. Still many of the existing great number of ...

A leaking water pipe bursting high pressure water jet in the soil will create slurry erosion which will eventually erode the adjacent natural gas pipe, thus causing its failure. The standard 300 mm safety distance used to place natural gas pipe away from water pipeline facilities needs to be reviewed to consider accidental damage and provide safety cushion to the natural gas pipe. This paper pr...

Since filling slurry is a cement-based material, viscosity-enhancing admixture exerts significant effect on its rheological performance and mechanical properties. Viscosity-enhancing can improve pipeline transportation reduce wear during the process of kilometer-deep mine by changing plastic viscosity yield stress high-concentration slurries. In order to reveal influence mechanism in slurry, ex...

The particle size and content of tailings are important parameters affecting the rheological properties slurry. To explore their influence law mechanism on properties, experiments slurry were designed carried out under different sizes conditions. quantified in paper. Bingham body model was used texperiment. “double 30” theory (“particle 30.0 μm” “content 30%“) proposed expounded. corresponding ...