CN207701084U - A kind of major diameter jet mixing drill bit - Google Patents
A kind of major diameter jet mixing drill bit Download PDFInfo
- Publication number
- CN207701084U CN207701084U CN201820011969.2U CN201820011969U CN207701084U CN 207701084 U CN207701084 U CN 207701084U CN 201820011969 U CN201820011969 U CN 201820011969U CN 207701084 U CN207701084 U CN 207701084U
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- China
- Prior art keywords
- drill bit
- pressure
- jet mixing
- drilling rod
- major diameter
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Abstract
The utility model discloses a kind of major diameter jet mixing drill bits, its main feature is that it is symmetrically arranged high-pressure slip-casting pipe to be equipped in drilling rod with common pressure grouting pipe, the high pressure notch setting of the high-pressure slip-casting pipe is under the stirring blade of nearly drill bit；The normal pressure notch setting of the common pressure grouting pipe is in the binding site of drill bit and drilling rod, and normal pressure spout is with high pressure spout jointly to soil body progress jet mixing.This diameter is big, it is simple in structure to have compared with prior art, it is big to the chip ability of the soil body, jet mixing diameter is big, work efficiency is high, especially meet the requirement that deep basal pit stirs major diameter rotation support pile, pile quality is good, speed of application is fast, the period is short, further lowers engineering cost, improves Business Economic Benefit.
Description
Technical field
The utility model is related to pile foundation drilling rig technique field, especially a kind of rotation for stirring supporting construction for major diameter rotation
Spray stirring drill bit.
Background technology
Currently, the country is generally used rotation for the supporting of deep basal pit and stirs supporting construction, such as gravity type retaining support
Retaining wall use substantially overlapped between twin shaft and three axis technique stakes it is relatively more, since to stir drill bit drilling diameter small for rotation, cannot meet compared with
Deep basal pit major diameter revolves the supporting construction for stirring stake, and speed of application is slow, influences pile quality, while cheating interior reinforce and generally using
Churning and three axis etc., quantities is big, and the duration is longer, and project cost is higher.
Chip energy force difference of the drill bit to the soil body is stirred in the rotation of the prior art, and drilling diameter is small, and not only construction period is longer, and
Project cost is high, especially cannot be used for the supporting construction that stake is stirred in larger diameter rotation, leverage deep footing groove enclosing structure at
Quality of pile.
Utility model content
The purpose of this utility model be in view of the deficiencies of the prior art and provide a kind of major diameter jet mixing drill bit, adopt
With the jackrod structure for adding high-pressure slip-casting mouth under blade, effectively improves rotation and stirs drill bit and diameter is stirred to the chip ability of the soil body and rotation,
Construction period is substantially reduced, stirring support pile for deep basal pit major diameter rotation provides that a kind of pile quality is good, speed of application is fast
Drill bit is stirred in major diameter rotation, further lowers engineering cost, improves Business Economic Benefit.
What the purpose of this utility model was realized in：A kind of major diameter jet mixing drill bit, including drill bit and be equipped with
The drilling rod of stirring blade, drilling rod is interior to be equipped with common pressure grouting pipe, its main feature is that it is arranged symmetrically to be equipped with common pressure grouting pipe in drilling rod
High-pressure slip-casting pipe, the high pressure notch setting of the high-pressure slip-casting pipe is under the stirring blade of nearly drill bit；The common pressure grouting pipe
Normal pressure notch setting in the binding site of drill bit and drilling rod, normal pressure spout and high pressure spout carry out churning to the soil body jointly and stir
It mixes.
The utility model compared with prior art have it is simple in structure, it is big to the chip ability of the soil body, jet mixing it is straight
Diameter is big, efficient, especially meets the requirement that deep basal pit stirs major diameter rotation support pile, pile quality is good, speed of application is fast, the period
It is short, further lower engineering cost, improves Business Economic Benefit.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the vertical view of Fig. 1.
Specific implementation mode
Refering to 1~Fig. 2 of attached drawing, the utility model is by drill bit 5 and is equipped with high-pressure slip-casting pipe 2, stirring blade 3 and common pressure grouting
The drilling rod 1 of pipe 7 forms, and it is symmetrically arranged high-pressure slip-casting pipe 2, the high pressure injection to be equipped in the drilling rod 1 with common pressure grouting pipe 7
The high pressure spout 4 of slurry pipe 2 is arranged under the stirring blade 3 of nearly drill bit 5；The setting of normal pressure spout 6 of the common pressure grouting pipe 7 is being bored
First 5 with the binding site of drilling rod 1, and jet mixing is carried out to the soil body together with high pressure spout 3.
The utility model uses in this way：The drill bit 5 of stake machine and the rotation of stirring blade 3 are sunk, cement grout passes through
The normal pressure spout 6 of common pressure grouting pipe 7 injects stake holes, stirring to the laggard horizontal high voltage rotary jet grouting of stake bottom absolute altitude.Cement grout is by height
The high pressure spout 4 of pressure grouting pipe 2 sprays at a high speed and cutting soil, while stirring promotion, and finally rotation stirs into stake.The utility model pair
The advantages of construction that support pile is stirred in larger diameter rotation is good with pile quality, and work efficiency is high.
Above only the utility model is described in further detail, and not to limit the utility model patent, all is this reality
With novel equivalence enforcement, it is intended to be limited solely by within the right of the utility model patent.
Claims (1)
1. a kind of major diameter jet mixing drill bit, including drill bit and the drilling rod equipped with stirring blade, drilling rod is interior to be equipped with common pressure grouting
Pipe, it is characterised in that it is symmetrically arranged high-pressure slip-casting pipe, the height of the high-pressure slip-casting pipe to be equipped in drilling rod with common pressure grouting pipe
Press notch setting under the stirring blade of nearly drill bit；Combination of the normal pressure notch setting of the common pressure grouting pipe in drill bit and drilling rod
Position, and jet mixing is carried out to the soil body jointly with high pressure spout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820011969.2U CN207701084U (en) | 2018-01-04 | 2018-01-04 | A kind of major diameter jet mixing drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820011969.2U CN207701084U (en) | 2018-01-04 | 2018-01-04 | A kind of major diameter jet mixing drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207701084U true CN207701084U (en) | 2018-08-07 |
Family
ID=63031327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820011969.2U Active CN207701084U (en) | 2018-01-04 | 2018-01-04 | A kind of major diameter jet mixing drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207701084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086915A (en) * | 2018-01-04 | 2018-05-29 | 上海智平基础工程有限公司 | A kind of major diameter jet mixing drill bit |
-
2018
- 2018-01-04 CN CN201820011969.2U patent/CN207701084U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086915A (en) * | 2018-01-04 | 2018-05-29 | 上海智平基础工程有限公司 | A kind of major diameter jet mixing drill bit |
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