Random generation of the meso-structure of a soil-rock mixture and its application in the study of the mechanical behavior in a landslide dam

A Monte Carlo Approach to Estimate the Stability of Soil–Rock Slopes Considering the Non-Uniformity of Materials

“…In order to carry out a more in-depth study of the mechanical properties of the soil-rock mixtures, a certain soil sample was taken from the landslides and sieved, to retain the rocks with a size range of 2 to 14 mm. In soil-rock mixtures, due to the scale effect [1,11], it was very important to control suitable rock size, which played an important role on the triaxial testing results of soil-rock mixtures. According to References [38,39], the minimum rock size in soil-rock mixtures is advised to be the maximum value of 2 mm and 0.05 Lc (Lc was the characteristic length of samples), and the maximum rock size is suggested to be 0.2 Lc.…”

“…According to the test results of in situ drilling, the cohesive force of soil-rock mixture is also distributed scatteredly, when the content of rock is similar, and this can be explained by the heterogeneity of geological formations [8]. Therefore, combining Xu's studies [2,8,11], in the premise of suitable rock size, it can be speculated that, in nature, the strength of soil-rock mixture is also distributed scatteredly. Hence, in order to evaluate the stability of soil-rock slopes more accurately, the cohesive force of soil-rock mixture should be a range rather than a fixed value.…”

“…In some areas, the mixtures of soil and rocks are usually recognized as bimrocks [2,8]. It is a common slope structure (a soil-rock slope is shown in Figure 1a) and engineering material (artificial materials are shown in Figure 1b), usually viewed in the Three Gorges region of China and the west of China [9][10][11]. Hence, when constructing a highway or railway on a natural or manually filled soil-rock slope, it is necessary to evaluate the stability of the soil-rock slope to ensure the safety of the project and prevent a landslide and failure of the slope.…”

“…Hence, when constructing a highway or railway on a natural or manually filled soil-rock slope, it is necessary to evaluate the stability of the soil-rock slope to ensure the safety of the project and prevent a landslide and failure of the slope. [9][10][11]. Hence, when constructing a highway or railway on a natural or manually filled soil-rock slope, it is necessary to evaluate the stability of the soil-rock slope to ensure the safety of the project and prevent a landslide and failure of the slope.…”

Formation Mechanism and Mechanical Properties of Soil-Rock Mixture Containing Macropore

“…Afifipour and Moarefvand [11,12] used a servo-control machine to conduct uniaxial compression tests on model bimrocks to obtain mechanical parameters such as uniaxial compressive strength (UCS), Young's modulus, failure strain, and fullscale stress-strain curves. Ergenzinger et al [13], Xu et al [14][15][16], and Zhao et al [17] used discrete element method (DEM) to investigate the strength and failure properties of SRMS in shear zone. Particle flow code (PFC) 3D is developed to establish a stochastic structural model and simulate pressure shear deformation damage test [9].…”