关键词: 水利工程；装配式挡土墙；稳定性；安全系数；影响因素；敏感度

Abstract: Compared with the traditional gravity retaining wall, the new assembled retaining wall has the advantages such as small self-weight, low requirements for foundation bearing capacity, strong adaptability, saving materials and short construction time, and can achieve the purposes of energy saving, water saving, material saving and environmental protection. It is an important direction of retaining wall design and research. Compared with the traditional gravity retaining wall, the deformation and stability problems caused by the reduction of wall self-weight and the splicing of assembly structure needed to be considered more. Therefore, the stability of assembled retaining wall was focused and discussed. Firstly, based on the study of the stability of the traditional gravity retaining wall, the inclined wall back retaining wall was taken as an example, and the relevant safety coefficients of the retaining wall were calculated according to the norm. And then the sensitivity analysis method was used to analyze the effects of the bulk density of the filler in the wall, the internal friction angle of the backfill and the inclination angle of the wall back on the stability of the new assembled retaining wall one by one. Finally, the influence degree of various factors on the stability of retaining wall was studied, and the main factors affecting the stability of retaining wall were found out. The problems that should be paid attention to in the design of the new type of assembly inclined wall back retaining wall are put forward, which provides a certain basis for the design of the new assembled retaining wall.

Key words: hydraulic engineering; new assembled retaining wall; stability; safety factor; influencing factors; sensitivity