| 摘要 |
The invention relates to a process of making piles for in-depth consolidation of soft grounds, with high plasticity and compressibility, said grounds being intended to sustain different industrial, civil constructions or similar. According to the invention, the process consists in expanding the pilot hole up to a chosen diameter, by digging the ground using some lamellar jets, shifted in height and diametrically opposed, made by injecting a cement suspension, on a radial direction, under a pressure of 100...600 baryes, simultaneously with the cement suspension injection there also taking place the jet altenative rotation around the pilot hole axis, as well as the ascendent axial advance thereof towards zero elevation of the drilling, and the expanding of the pilot hole can also take place by digging the ground using some lamellar jets of cement suspension, each surrounded by an air jet, or by digging the ground by means of some lamellar jets of water at high pressure, each surrounded by an air jet, in the drilling hole thus expanded, at a level inferior to the jets, there being injected, a jet-shaped cement suspension, at an average pressure and which rotates and advances simultaneously therewith.
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