Latter Cenent-inject Technique Reseach And Application For Underlying Of A Big Diameter Drill-affusing Pile In Nerilic Pool Region

The bearing capacity of the pile lies on the resistance of the side and underlying soils,and the resistance of the side and underlying soils gets along with engineering character of it .The research shows: Latter Cement-inject technique is a economical and effective mathod of improving the side and underlying soils of the pile ..so, this paper relies on construction exemples, the Bridge over hangzhou Gulf I sign ,this is an exemple of big diameter-pile by bottom's pressing a serum technique behind.Transitting to comprehensive analyse bearing capacity of it . The result at neritic pool region after press syrup ability significant raise a big diameter stake of single stake loading dint, the valid decrease stake bottom sinks to decline.Therefore press serum to rebuke with sarcastic remarks to let up a pile to grow after canning pass, lower an engineering investment thus.The results show Latter Cenent-inject technique can apparently improve bearing capacity of large diameter cast-in-place pile ,so the pile length can be reduced by Latter Cement-inject technique and cut project cost and in the test ,self-balance loading method adopt integrated electro-mechanical design ,all the date can be auto-collected ,operate simply ,and save cost ,and application prospect widely.