TY - JOUR
AU - Liu, HanLong
AB - Under cyclic loading, particle breakage occurs at gravelly soil-structure interface, resulting in the decrease of interface strength and the increase of normal displacement. Based on the theory of critical state soil mechanics, the modified Cam-Clay model (MCC) was extended to the plane strain condition of the interface, the state parameter was introduced and the influence of particle breakage on the critical state line was considered, and the cyclic constitutive model for gravelly soil-structure interface considering particle breakage was established by using the non-associated flow rule. Then, the established cyclic constitutive model was used to simulate large-scale cycle direct shear tests of Zipingpu rockfill-steel interface and Zipingpu rockfill-concrete interface under constant normal load (CNL) and constant normal stiffness (CNS), respectively. The simulation results show that under the CNL cyclic loading path, there is little difference between the cyclic shear stress considering particle breakage and that without particle breakage, but the normal displacement considering particle breakage is larger than that without particle breakage, and the difference increases with the increasing number of cycles and normal stress; Under the CNS cyclic loading path, with the increase of the number of cycles, the cyclic shear stress and cyclic normal stress considering particle breakage is significantly smaller than that without particle breakage, and the shear contraction of normal displacement becomes more obvious. In general, the simulation results are closer to the experimental results when particle breakage is considered.
TI - A constitutive model incorporating particle breakage for gravelly soil-structure interface under cyclic loading
JF - Science China Technological Sciences
DO - 10.1007/s11431-022-2100-6
DA - 2022-12-01
UR - https://www.deepdyve.com/lp/springer-journals/a-constitutive-model-incorporating-particle-breakage-for-gravelly-soil-i16PBqlODB
SP - 2846
EP - 2855
VL - 65
IS - 12
DP - DeepDyve
ER -