An anti-lock drill bit and a using method thereof

Abstract

The invention relates to an anti-lock drill bit and a using method thereof. The anti-lock drill bit mainly comprises a hexagonal joint, a drill rod, a stirring blade, a reinforcing rib, a wear-resistant tile, an anti-lock blade, a guniting conversion joint, an up and down stirring blade, a cutting pick, a drill bit and a grouting orifice, wherein the hexagonal joint is welded at the top end of thedrill rod, the stirring blade is arranged on the drill rod in a crossed and alternate mode, the anti-lock blade is composed of two pieces of omega-shaped blades which are connected with the drill rodthrough the wear-resistant tile and bolts, and the cutting pick is installed on the first stirring blade of the drill rod. The hidden danger of drill embracing in cement mixing pile construction canbe eliminated, slurry is sprayed up and down, the cutting efficiency is high, the pile forming efficiency is high, stirring is uniform, and the pile forming quality is good.

Description

technical field [0001] The invention relates to underground construction machinery, in particular to an anti-lock drill bit. Background technique [0002] At present, cement-soil mixing piles are used more and more widely in underground foundations as water-stop curtains and foundation reinforcement. The construction of cement-soil mixing piles generally uses single-axis, two-axis, three-axis and multi-axis mixing pile machines for construction. In cohesive soil During medium construction, due to the strong cohesive force between clay particles, it is not easy to mix evenly. During the mixing process, the drill bit often occurs balling and holding the drill, and the phenomenon of slurry occurs, resulting in a large resistance to drilling. out, uneven stirring, low pile forming efficiency and poor quality, causing huge losses to the construction; an anti-lock drill bit and its use method can effectively solve the above difficulties encountered. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] At present, cement-soil mixing piles are used more and more widely in underground foundations as water-stop curtains and foundation reinforcement. The construction of cement-soil mixing piles generally uses single-axis, two-axis, three-axis and multi-axis mixing pile machines for construction. In cohesive soil During medium construction, due to the strong cohesive force between the clay particles, it is not easy to mix evenly. During the mixing process, the drill bit often occurs balling and holding the drill, and the phenomenon of slurry occurs, resulting in a large resistance to drilling. out, uneven mixing, low pile forming efficiency and poor quality, causing huge losses to the construction; an anti-lock drill bit and its use method can effectively solve the above difficulties

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