Model Test Study on Rigid plate Connection of Micro-pile Top to Control Accumulation layer Landslide
In order to explore the effect of micro-piles under the connection of rigid plates to reinforce the landslide in the accumulation layer,based on the indoor physical simulation test,this paper studies the mechanical characteristics of micro-piles under the connection of rigid plates and different loads on the pile top.The research shows that the hori-zontal displacement at the same monitoring point of the landslide mass is significantly reduced after the micropiles are connected by rigid plates compared with the independent micropiles,and the displacement is further reduced by in-creasing the pile top load on this basis;Under the action of rigid plate,the earth pressure of the first to third row of piles decreases in turn,and the pile resistance ratio is 1∶0.77∶0.71;The bending moment of pile body presents"S"type distribution,and the reverse bending point exists near the sliding surface;Compared with independent micropiles,the change of the maximum bending moment of the pile body under the action of the load on the top of the pile after the rigid plate is connected to the micropiles is significantly reduced.
NETL
NSTL
万方数据
维普
