Yellow River sediment was obtained for this study from dredging operations at the Yellow River Jijin Main Canal in Jining County, Dezhou City, Shandong Province (Figure 1). Over 3000 acres of coal-mined subsided land have been reclaimed using sediment from this site transported by pipelines. The sediment used in experiments was collected from the Yellow River Jijin Main Canal by the sediment dredging ship. A total of 31 sediment samples were collected from the sediment transfer point and the filling reclamation land by three sediment dredging ships in the main canal. After removal of impurities, the sediments were used as test materials. Experimental water with a pH of 7.64 and conductivity of 696 uS•cm -1 was employed to closely mimic field conditions. Previous research recommended a filling height of approximately 120 cm for Yellow River sediment reclamation [17] . As the retrieved Yellow River sediment is a disturbed specimen, laboratory simulation filling experiments were conducted by filling PVC pipes with a concentration of 300 kg•m -3 of Yellow River sediment up to a height of 120 cm [17] . After 12 h of drainage, samples were taken at the top layer (0-40 cm), the middle layer (40-80 cm), and the bottom layer (80-120 cm) using a cutting ring, and their dry bulk density was determined after drying to constant weight.