| Studying dynamic analysis of soil under moving load is one of important disciplines. Research in traffic engineering dynamic analysis of stature soil under traffic load, and the effect of the pile-soil is important in practice to certain degree. The shaft friction of piles τ is the function of the around piles soil displace, theultimate bearing capacity of the piles τ_u = c_a + σ_x tan φ_a, σ_x= K_sσ_v' ,It is know that thebearing capacity of piles is relative to the condition of soil through reading paper and test record, while the factor condition of soil is pore water pressure.From the factors of immediate load ,pore water pressure and deformation of soil .studying the bearing property of friction pileThis paper starts with an introduction of diversity load of study discipline. Based on the research and the paper of others explored the factor of pore water pressure , major in the theory equation based on Biot' theory under the condition of immediate load.Through investigation, combining with specific paper, confined the influences of parameters (load, board and superimposed dynamic coefficient ) . Calculating the general condition the cross-road ground. And the result was compared with others' lab test about the pore water pressure showed after earthquake in the fully saturate soil ground in Shanghai. Though calculating and analysis, the result showed : the pore water pressure dissipate with depth, While, a sudden deeply change 0.5-2 board underground. Something alike the result of the after earthquake in the fully saturate soil groundStimulating the deformation which traffic load long time effect with FEA, though 3 different conditons. Showed the potential danger of pile-soil slide. |
