No-disturbance carbonization pile forming equipment and construction method thereof

Abstract

The invention discloses no-disturbance carbonization pile forming equipment and a construction method thereof. The equipment comprises a pile frame, a curing agent supply device, a foam supply device and a liftable stirring device arranged on the pile frame, wherein the liftable stirring device comprises a pile forming protective cover, an outer stirring shaft, an inner stirring shaft, an external rotating blade and an internal rotating blade; the inner stirring shaft is longer than the outer stirring shaft; the outer stirring shaft coats the inner stirring shaft; a cavity is formed between the outer stirring shaft and the inner stirring shaft; the outer stirring shaft is positioned in the pile forming protective cover; the external rotating blade is arranged at the bottom end part of the outer stirring shaft; the internal stirring blade is arranged at the bottom end part of the inner stirring shaft; the external rotating blade is higher than the internal rotating blade; the curing agent supply device generates a curing agent, and conveys the curing agent into the cavity between the outer stirring shaft and the inner stirring shaft; and the foam supply device generates foams, and conveys the foams into the cavity between the outer stirring shaft and the inner stirring shaft. The equipment is reasonable in structure, environment-friendly, energy-saved and simple in operation.

Description

technical field [0001] The invention belongs to the field of civil engineering foundation treatment, and relates to a non-disturbance carbonized pile forming equipment and a construction method thereof. Background technique [0002] In recent years, due to the rapid development of the transportation industry, more and more heavy-duty traffic and even extra-heavy traffic have appeared. Although the increase of traffic load has greatly promoted economic growth, it has brought about many roadbed diseases, such as road surface cracking, rutting, roadbed subsidence, uneven subsidence, etc., and has also caused many traffic accidents. Based on this background, foundation reinforcement technology came into being, and pile foundation reinforcement is a popular foundation reinforcement technology at present. [0003] The current pile foundation reinforcement technology mainly includes sinking pipe grouting pile, squeezed and expanded multi-branch pile, bored grouting pile, lime-soil...

AI Technical Summary

Problems solved by technology

However, it has been found through practice that due to the rotation of the rotating blade in one direction during construction, the reaction between carbon dioxide and the magnesium powder in the soil is not complete, and some parts do not even react, resulting in poor pile formation effect in this part.

Moreover, due to the lateral pressure of the external soil during pile formation, the binding force is low, and swelling is prone to occur during the pile formation process, resulting in insufficient bearing capacity of the pile body.

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