Abstract:
In order to explore the interaction between the anti-slide retaining wall and the small landslide body,and to improve the traditional anti-slide retaining wall. Taking a small landslide as the research object,indoor model tests and numerical analyses were carried out,and the distribution characteristics of landslide thrust behind the anti-slide retaining wall were analyzed. Based on this,the distribution law of landslide thrust behind the anti-slide retaining wall of small landslides was generalized,and two examples of landslides were selected to verify the universality of this law. Accordingly,the paper designed a novel support structure that combines the functions of ecological control and landslide treatment. The conclusions show that the test data from physical tests is consistent with the results of numerical simulations,ultimately proving that the numerical simulation is accurate and the test method is applicable to this research. The stress distribution behind the anti-slide retaining wall is approximately 'fishhook'; from the slide surface to the slope surface,the overall trend of the landslide thrust first increases and then decreases. In a certain range near the slope,the landslide thrust is maintained at a small value,and the decrease is not obvious. Compared with the traditional gravity retaining wall,the new-type anti-slide retaining wall saves materials,reduces engineering costs,and helps to restore the ecological environment while supporting the landslide. The research results can provide a certain test basis and design reference for the basic research and optimization design of anti-slip retaining walls in small landslide management,and it has good applicability and application value.