| 摘要 |
PURPOSE:To build the titled combined pile economically by disposing a structural pile into an ultra-large aperture soil cement post, a lower end thereof reaches supporting ground and a lower section thereof is formed in a layer having strength higher than an upper section. CONSTITUTION:Each rotary vertical shaft 10 is turned by means of an excavator respectively while a pit is excavated rotating or oscillating all the rotary vertical shafts 10 as one group, and cement milk is injected simultaneously and kneaded with excavated soil. When the noses of the rotary shafts 10 reach the supporting ground 3, the quantity of cement in the cement milk is increased, and the high strength layer 6 is formed. Before the rotary vertical shafts 10 are extracted and the soil cement post 1 shaped into the pit 5 scraped is solidified, the structural pile 2 is inserted, and the lower end is disposed onto the high strength layer 6. |
