An anti-lock drill bit and a using method thereof

An anti-lock, drill bit technology, applied in construction, sheet pile wall, infrastructure engineering and other directions, can solve the problems of high drilling resistance of the drill bit, low pile formation efficiency, construction loss, etc., to reduce drilling and lifting The effect of resistance, wide adaptability to stratum and high pile forming efficiency

Pending Publication Date: 2019-04-09
SHANGHAI CHENGDI CONSTR +1
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  • Abstract
  • Description
  • Claims
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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

Method used

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  • An anti-lock drill bit and a using method thereof
  • An anti-lock drill bit and a using method thereof

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Embodiment

[0021] like figure 1 As shown, an anti-lock drill bit and its use method, the anti-lock drill bit mainly includes a hexagonal joint 1, a drill pipe 4, a stirring blade 2, a reinforcing rib 3, a wear-resistant tile 8, an anti-lock blade 5, and a spraying conversion Section 6, upper and lower stirring blades 7, picks 9, drill bit 10, grouting port 11, the hexagonal joint 1 is welded on the top of the drill pipe 4, and the stirring blades 2 are arranged in a cross on the drill pipe 4. The anti-lock blade 5 is composed of two Ω-shaped blades 12, which are connected with the drill pipe 4 by bolts through wear-resistant tiles 8, and the picks 9 are installed on the first stirring blade 2 of the drill pipe 4.

[0022] The present invention designs an anti-lock drill bit, and its use method is as follows: when the anti-lock drill bit is used for cement-soil mixing pile construction in cohesive soil, the whole drill bit rotates and drills downward, and the upper and lower mixing blades...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/46E02D15/04
CPCE02D5/46E02D15/04E02D2250/0038E02D2250/003
Inventor 谢晓东周玉石刘国锋谢曙东赵伟明鲍国强张群刘泽海
Owner SHANGHAI CHENGDI CONSTR
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