Continuous pile-plug structure is a new-type anti-sliding structure

with the combination of function of shear plug and slide-resistant pile. The FLAC2D numerical modeling program is used to model the relationship between continuous pile-plug structure and landslides. The result shows that

the internal anti-sliding mechanism of the structure can decrease shear deformation

reduce plastic zones

block slide displacement

mobilize rock-soil resistance; and the external mechanism is the reinforcement effect and retain function. In general

continuous pile-plug structure works under complex stress state with bending moment

shear force and axial force

and the internal force deformation distributes continuously and balanced corresponding to continuous rigid-frame under balanced force. Continuous pile-plug structure solves the limitation of monomer structure and behaves better in slide resistance and reinforcement of landslides. It improves the safety margin of mass movement stability significantly and has wider applicability in landslides management project. The continuous pile-plug structure is applied in Houzishi landslide control engineering

which is the most complex geological hazard control project in Three George reservoir

and obtains good governance effect.