Djm Pile Of Soft Soil Roadbed Of The Highway Mechanism And Design

On the base of past achievements on DJM Pile treated soft clay foundation, a further study is conducted on the mechanism of DJM Pile treated soft clay foundation,the characteristic of load transmission and load sharing as well as the deformation is also explored.A new method with assumption is proposed to study a special space ax-symmetrical plasticity problem, which aims at determining the bearing capacity of ax-symmetrical single pile bottom in composite foundation. A method of calculating the pile-soil stress ratio is conducted and the effect on main influence factors is analyzed systemically.The calculate methods of additional stress ., settlement and stability of DJM Pile composite foundation are summarized, the research results show that DJM Pile is effective in improving soft clay foundation.The Vehicle Jounce phenomenon at bridge head is discussed and solution is presented. Based on the studies conducted in this paper, an improving designing method is proposed for DJM Pile.