The Eurocodes provide a simplified fatigue design control through the use of Fatigue Load Model 3 (FLM3) and a damage equivalent factor, λ, which is now widely used. In applying the Eurocode method, the first problem arises when designers try to determine the corresponding fatigue span length, especially for bridge static systems not listed. A second problem is that in case of long bridges, the...

Hydraulic conductivity is an essential parameter for groundwater investigation and management. A simple technique determining the hydraulic of aquifers slug test, which consists measuring water level in a well after sudden removal or injection small amount water. The interpretation test based on geometry-dependent shape factor, various empirical relationships approximate solutions have been pro...

The trap efficiency of a shallow reservoir depends on the characteristics of the inflowing sediments and the retention time of the water in the reservoir, which in turn are controlled by the reservoir geometry. With the purpose of controlling the trapped and flushed sediments in shallow reservoirs, the effects of the geometry on sediment deposition and removal were investigated with systematic ...

Abstract Porosity is one of the key properties dense particle packings like sediment deposits and influenced by a multitude grain characteristics such as their size distribution shape. In present work, we focus on form, specific aspect overall shape, sedimentary grains in order to investigate quantify its effect porosity, ultimately deriving novel porosity-prediction models. To this end, develo...

Double-roll rotary forging is an emerging plastic forming technology based on forging. Owing to the advantages of labor saving, small eccentric load, low noise and vibration, good uniformity, high surface quality, material it very promising for fabrication large-diameter thin-walled disc. To date, a few relevant researches double-roll metal discs have been reported, mechanisms process disc work...