To examine the effects of different peak accelerations on the stability of the accumulation slope and the effectiveness of anti-slide piles under seismic loads, this paper used the Fanlingqian landslide as the main research object and combined it with digital image correlation (DIC) technology in order to carry out a shaking table test. Then, the acceleration response, displacement field, strain field, the bending moment distribution of the 0.05–0.3 g ground motion accumulation slope, and the anti-slide pile reinforcement were studied. The results of the test show the following: the amplification coefficient of the measuring points A1–A6 of the accumulation slope reaches the maximum at a peak acceleration of 0.2 g, and its values are between 1.25 and 1.3, respectively. Finally, it shows a decreasing trend at a peak acceleration of 0.3 g, and its corresponding values are, respectively, between 1.1 and 1.2. In the anti-slip pile reinforcement test, due to the obstruction of the anti-slip pile, the damping of the soil around the pile increases. As the peak value of the seismic wave input increases, the amplification factor shows an overall decreasing trend. A1–A6 correspond to a peak acceleration of 0.3 g. The amplification factors are all close to 1. During different peak accelerations, the accumulation slope mainly experienced the earthquake-induced stage, tensile failure stage, creeping deformation stage, and overall instability stage. In the anti-slide pile reinforcement test, under the same conditions, the slope mainly experienced the earthquake-induced stage, tensile failure stage, lower sliding surface formation stage, and soil shedding stage in front of the pile. At the same time, the displacement and strain fields of each stage of the two groups of tests are compared, and it is found that the displacement and strain values of the accumulation slope test are greater than those of the anti-slide pile reinforcement test, and the horizontal displacement difference at the top of the slope is the most significant, reaching 2.3 times at the maximum. The bending moment of the anti-slide pile first increases and then decreases with the increase in acceleration, the reverse bending point of the pile appears at 5 times the pile diameter below the soil surface, and the maximum bending moment of the middle pile, corresponding to a peak acceleration of 0.05–0.3 g, is between 7.5 N·m and 47 N·m, respectively, while the maximum bending moment of the outer pile is between 6.5 N·m and 52 N·m, respectively. It is important to apply DIC image processing technology to the monitoring of landslide structure and the evaluation of slope stability in practical engineering.

Drilling waste has a significant effect on the water quality and the aquatic environment. Therefore, the harmless solidification treatment of drilling waste mud is important in terms of protecting the water environment. However, traditional chemical solidification methods have some problems, such as wide area, high cost, and secondary pollution. Therefore, the improvement of the mechanical performance on treating the drilling waste is important, as it can reduce and minimize the effect of drilling waste on the water environment. To this end, in this study, the industrial waste residue is used as the main component of the curing agent and a harmless curing scheme is designed. According to the orthogonal design method, an unconfined compressive strength test is carried out on the solidified soil of drilling waste mud. The strength, stress-strain relationship, and deformation modulus of the solidified soil are discussed according to the curing age, the number of freeze-thaw cycles, and the proportion of the solidifying agent. The test results show that the unconfined compressive strength of solidified soil samples under different proportions increases with the increase of the curing age and decreases with the increase of the freeze-thaw cycles. With the Increase of the curing age, the solidified soil gradually changes from plasticity to brittleness, and its deformation modulus E₅₀ also increases gradually.