Two-liquid stirring grouting system

Abstract

The invention discloses adouble-liquid stirring grouting systemwhich comprises rotatable slurry channel switching components, wherein the rotatable slurry channel switching components rotate so as to grout slurry through grouting channels; through switching of the rotatable slurry channel switching components, twotypes of slurry can be separately and simultaneously grouted into a drilling rod which rotates continuously; the slurry is conveyed to the drill bit through a grouting channel inside the drilling rod; the two grouting channels are in a tube bundle mode, so thatthe cross section rigidity is veryhighto avoiddistortion, the pressure is stabilized within a certain fluctuation range to continuously grout the two types of slurry into a soil layer, the slurry is ejected out from ejection holes in the drill bit, and under the continuous stirring of the stirring blades of the drill bit, the two types of slurry are sufficiently and uniformly mixed. The strength of a column body is improved as the two types of slurry are cured and formed through rapid chemical reaction, so that the double-liquid stirring grouting system is applicable to grouting systems of pile machines such as ordinary stirring pile machines, bidirectional stirring pile machines, double-tube multi-directional stirring pile machines, and has wide applicability.

Description

technical field [0001] The invention relates to a two-liquid stirring grouting system, which is a kind of equipment for synchronously performing grouting and stirring of two kinds of grout, and finally fully and evenly stirring the two kinds of grouting equipment, especially for one-way, two-way, multiple The application project of the two-liquid stirring grouting system of the tube multi-directional stirring pile machine. Background technique [0002] In the current prior art, various types of agitating pile drivers use a single slurry in the construction process. The slurry is generally pure cement slurry mixed with fine silt and mixed with various soil curing agents in the cement slurry. After many years of practice, the agitated pile using single grout grouting is not easy to guarantee the quality of the pile in the silt soil layer, and the strength of the pile body is low. The research shows that the main factors affecting the quality of piles are as follows: [0003]...

AI Technical Summary

Problems solved by technology

[0011] Aiming at the deficiencies of the existing construction technology, the technical problem to be solved by the present invention is to solve the problem that the single-liquid grouting pile body is difficult to form, the wall gap of multiple pipes is not fixed and the grouting pressure is unstable, and the external grouting conduit is blocked by the rotating blades. For the technical problem of being unable to go deep into the same soil layer as the drill bit, it is necessary to provide a dual-liquid mixing pile with a pipe that is at the same depth as the drill bit, with high cross-section stiffness, stable grouting pressure, simultaneous injection of two liquids, better forming effect, and wider application range. Grouting system

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