LI Zhi-bin, XU Chao, YE Guan-bao, et al. Research on factors influencing HDPE-sand interface frictional properties by tilting table tests[J]. 2006, 27(12).
LI Zhi-bin, XU Chao, YE Guan-bao, et al. Research on factors influencing HDPE-sand interface frictional properties by tilting table tests[J]. 2006, 27(12).DOI:
Frictional parameters of HDPE-sand interface are measured using tilting table device. In order to analyze the factors influencing frictional properties
three kinds of HDPE with different asperities and three kinds of sands with different states are used in the experiments. Tilting table tests are conducted under a normal stress range of 1.0–9.0 kPa to simulate frictional characteristics under low stresses. It is found from the results that the interface dimensions
asperity of HDPE
the state of sand have effects on the frictional properties. Test results indicate that: (1) the larger the interface
the bigger the frictional angle is; (2) the rougher the HDPE surface
the bigger the frictional angle is; (3) frictional angle of wet sand and HDPE interface is bigger than that of dry sand; (4) frictional angle of loose sand and HDPE interface is smaller than that of dense sand.