Application of multilayer extraction sampling to sediment deposition process
Liang Wang · Rock and Soil Mechanics · 2011
The soil bed formation is a complex process which involves sedimentation and dead-weight consolidation.However,there isn't a simple and feasible method for measuring the water content,density,grain size,pore water pressure and total stress during its physical model test now.An improved laboratory testing method has been carried out.Compared with the available testing methods,the surface settlement,water content(density) distribution,dissipation profiles of excess pore water pressure,and grain size distribution variation of deposition at different depths and times in the process can be obtained by using the improved method.The experimental results show that the measured data are reasonable;and error of consistency test is small;and the improved laboratory testing method is feasible.