Abstract:

In view of the stability of a dump with deep soft layer foundation at the foot of a slope，vari⁃

ous limit equilibrium methods are used to calculate the safety factors of the dump under normal conditions，

rainfall conditions and seismic conditions.According to the calculation results，compared with the specifica⁃

tion requirements，the optimization design of the dump section is carried out.It is proposed to clean up the

soft soil layer of the basement，reduce the slope angle，fill the rock toe and other prevention measures，and

propose a systematic prevention mechanism to solve the major safety risks of the dump from the source，so

as to realize the intrinsic safety management of the project.The research results provide theoretical support

and reference for the design and treatment of dump slope in deep soft foundation.

Key words:

dump slope, deep soft foundation, slope stability