Influence Analysis of Bearing Characteristic Parameters of D-M Method
The finite element numerical simulation method was used to study the bearing characteristics of dredger fill foundation treated by long plate-short pile method,and the influence and law of pile spacing,pile length and plastic drainage plate spacing on the bearing characteristics of dredger fill composite foundation by D-M method were analyzed.The results show that:① The influence of pile length on long-slab-short pile composite foundation lies in that it can effectively control foundation settlement and provide bearing capacity.Within the range of effective pile length,the longer the pile length,the better the effect.② The pile spacing mainly affects the stress and area replacement rate of soil between DJM piles and piles.The smaller the pile spacing,the greater the bearing capacity of long slab-short pile composite foundation.③ The influence of plastic drainage boards on long-slab-short pile composite foundation lies in improving the permeability coefficient of soil between piles.In a certain range,the denser drainage boards are,the faster the consolidation settlement speed is,which can effectively improve the bearing capacity of soil between piles.④ The optimal parameter design of long slab-short pile composite foundation for dredger fill foundation with different thickness is put forward.
NETL
NSTL
万方数据
