## 1 Introduction
As an important piece of equipment for simulating seismic phenomena, the shaking table is popular with researchers [32]. Most of them carried out shaking table physical model tests by giving the ground motion time history on the seismic input. [PERSON] et al. [33] and [PERSON] et al. [34] conducted shaking table tests and numerical simulations on loess-mudstone slopes with fault zones. They discovered that the dynamic response of slope acceleration exhibited a surface effect. The acceleration amplification effect within the fault zone was significantly greater than that on either side, with the maximum acceleration amplification factor reaching 3.5. [PERSON] et al. [35] performed large-scale shaking table-based physical model tests and numerical simulations on loess-mudstone slopes with an anti-dip fault zone. The results showed that the acceleration amplification factor increased with elevation, demonstrating a pronounced \"fault zone amplification effect\" and \"hanging wall effect\". [PERSON] et al. [36] simplified the cut slope across the Xiaojiang fault zone into a stepped bedding rock slope model with weak interlayers and conducted large-scale shaking table tests. The results indicated that the acceleration amplification factor of the slope exhibited an elevation amplification effect. The failure process comprised four stages: shallow creep, local tensile cracking, accelerated deformation, and overall instability. The deformation and failure mode of the slope could be characterized as sliding-tensile cracking. [PERSON] et al. [37] and [PERSON] et al. [38] conducted large-scale shaking table model tests and numerical simulations on rock slopes containing weak fault rupture zones, finding a significant acceleration amplification effect. The progressive failure mode of the model slope was identified as a tensile cracking-sliding failure, with the deformation primarily concentrated in the shear-sliding failure stage. According to the current state of research on shake table tests for fault-crossing slopes, most studies simulate fault surfaces (rupture zones) by using different materials within a model box, followed by shake table testing. However, due to the limitations of shake table equipment, it is difficult to accurately replicate the relative movement between the two fault blocks in bedrock. This results in certain flaws in simulating the damage mechanisms and evolution processes of fault-crossing slopes, as the relative dislocation between the fault blocks cannot be realized. Therefore, in conducting cross-fault slope model tests, a model device capable of simulating the relative dislocation across the fault is essential. The primary fault dislocation devices currently used include the 1 g constant gravity fault dislocation model device and the Ng centrifuge model device. Both 1 g and Ng fault dislocation devices are capable of simulating dislocation loading on bedrock faults in model tests assessing the fracture response of buildings and their overlying soils [39; 40; 41]. For example, [PERSON] et al. [42] and [PERSON] et al. [43] utilized a custom-designed model box to simulate a fault slip and examined the relationship between various foundation types of three-story buildings and the surface rupture locations. [PERSON] et al. [44] studied the interaction between a strip foundation and a normal fault displacement in the direction parallel to the strike using centrifuge model tests. However, despite extensive slope model experiments conducted using centrifuge testing [45; 46; 47; 48; 49; 50; 51; 52; 53], there has been no research addressing the impact of relative dislocations between the two fault blocks in bedrock on cross-fault slope model tests. In general, the distribution of earthquake-induced landslides is primarily controlled by the distribution of the fault rupture. The relative movement between the two fault blocks causes the location of the main rupture zone (tensile fracture surface) in the slope to vary, making the formation mechanism of cross-fault landslides unclear.