A non-disturbance carbonized pile forming equipment and its construction method

Abstract

A non-disturbance carbonized pile forming equipment and construction method thereof, the equipment includes a pile frame, a curing agent supply device, a foam supply device and a liftable stirring device arranged on the pile frame; the liftable stirring device includes Pile-forming sheath, outer stirring shaft, inner stirring shaft, outer rotating blade and inner rotating blade; the length of the inner stirring shaft is greater than the length of the outer stirring shaft; the outer stirring shaft is set with a gap between the outer part of the inner stirring shaft cavity; the outer stirring shaft is placed inside the pile sheath; the outer rotating blade is arranged at the bottom end of the outer stirring shaft; the inner rotating blade is arranged at the bottom end of the inner stirring shaft; the height of the outer rotating blade is higher than that of the inner rotating blade; The curing agent supply device generates curing agent and delivers it to the cavity between the outer stirring shaft and the inner stirring shaft; the foam supply device generates foam and delivers it to the cavity between the outer stirring shaft and the inner stirring shaft. The invention has the advantages of reasonable structure, environmental protection, energy saving and convenient 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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