CN209162812U - A kind of double-high-pressure spun jet stirring drill bit - Google Patents
A kind of double-high-pressure spun jet stirring drill bit Download PDFInfo
- Publication number
- CN209162812U CN209162812U CN201821903448.4U CN201821903448U CN209162812U CN 209162812 U CN209162812 U CN 209162812U CN 201821903448 U CN201821903448 U CN 201821903448U CN 209162812 U CN209162812 U CN 209162812U
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- pressure
- drill bit
- pipe
- drilling rod
- pressure water
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Abstract
The utility model discloses a kind of double-high-pressure spun jets to stir drill bit, including drill bit and equipped with the drilling rod of stirring blade, common pressure grouting pipe is equipped in the drilling rod, the high-pressure slip-casting pipe and high pressure water injection pipe with common pressure grouting pipe for isosceles triangle setting are equipped in the drilling rod, the high-pressure mortar spraying mouth of the high-pressure slip-casting pipe and the high pressure water spray nozzle of high pressure water injection pipe are arranged under the stirring blade of nearly drill bit, and high pressure water spray nozzle is on high-pressure mortar spraying mouth；The normal pressure notch setting of the common pressure grouting pipe drill bit and drilling rod binding site, and with high-pressure mortar spraying mouth, high pressure water spray nozzle jointly to the soil body carry out jet mixing cutting.The advantages that the utility model has structure simple compared with prior art, and expanded diameter is big, and pile quality is good, and speed of application is fast.
Description
Technical field
The utility model relates to pile foundation drilling rig technique field, the whirl spraying for stirring supporting construction in particular for major diameter rotation is stirred
Mix drill bit.
Background technique
Currently, domestic be generally used mixing pile supporting construction for the supporting of deep basal pit, such as gravity type retaining support
Retaining wall use twin shaft and three axis techniques, due to stirring drill bit drilling diameter it is limited, stake holes diameter is small, overlapped between stake it is relatively more,
Speed of application is slow, the quality susceptible of supporting construction；It is reinforced in the hole of deep basal pit and generally uses twin shaft, three axis and whirl spraying etc.,
Project amount is big, and because single pile expanded diameter is small, pile-forming speed is slow, causes the duration longer, project cost is higher.
The stirring drill bit or drill bit of the prior art are poor to soil body chip ability, and effective expanded diameter is smaller, no
Pile driving construction is stirred in the rotation that can be used for super-large diameter, and the application particularly with deep big foundation pit supporting and ruggedized construction is restricted, and constructs
Speed is slow, and the duration is longer, and project cost is higher.
Utility model content
A kind of double-high-pressure spun jet that the purpose of this utility model is in view of the deficiencies of the prior art and proposes stirs drill bit, adopts
With the jackrod structure for adding high pressure water spray nozzle and high-pressure slip-casting mouth under blade, substantially increase to the cutting power of the periphery soil body and
The effective diameter of stake is stirred in rotation, substantially reduces construction period, support pile is stirred in the rotation for deep basal pit and reinforcing pile provide it is a kind of at
Drill bit is stirred in the super-large diameter rotation that quality of pile is good, speed of application is fast, further lowers engineering cost, improves Business Economic Benefit.This
The purpose of utility model is achieved in that
A kind of double-high-pressure spun jet stirring drill bit, structure includes drill bit and the drilling rod equipped with stirring blade, the drilling rod
It is interior to be equipped with common pressure grouting pipe, the high-pressure slip-casting pipe with common pressure grouting pipe for isosceles triangle setting and high pressure injection are equipped in the drilling rod
The paddle of nearly drill bit is arranged in water pipe, the high-pressure mortar spraying mouth of the high-pressure slip-casting pipe and the high pressure water spray nozzle of high pressure water injection pipe
Under piece, and high pressure water spray nozzle is on high-pressure mortar spraying mouth；The normal pressure notch setting of the common pressure grouting pipe is in drill bit and drilling rod
Binding site, and with high-pressure mortar spraying mouth, high pressure water spray nozzle jointly to the soil body carry out jet mixing cutting.
The high-pressure slip-casting pipe and the pressure of slip casting and water filling in high pressure water injection pipe reach 20MPa~40MPa.
The utility model has structure simple compared with prior art, big to the chip ability of the soil body, and expanded diameter is big, rotation
Stirring efficiency height is sprayed, the requirement that deep basal pit stirs super-large diameter rotation support pile and reinforcing pile is especially met, pile quality is good, constructs
Speed is fast, short construction period, further lowers engineering cost, improves Business Economic Benefit.
Detailed description of the invention
Fig. 1 is that a kind of double-high-pressure spun jet stirs drill bit structure figure
Fig. 2 is the top view of Fig. 1
Diagram: 1 is drilling rod, and 2 be high-pressure slip-casting pipe, and 3 be stirring blade, and 4 be high-pressure mortar spraying mouth, and 5 be drill bit, and 6 be normal pressure
Spout, 7 be common pressure grouting pipe, and 8 be high pressure water injection pipe, and 9 be high pressure water spray nozzle.
Specific embodiment
Refering to attached FIG. 1 to FIG. 2, the utility model is by drill bit 5 and is equipped with high-pressure slip-casting pipe 2, high pressure water injection pipe 8, paddle
The drilling rod 1 of piece 3 and common pressure grouting pipe 7 composition, the interior high pressure injection being equipped with common pressure grouting pipe 7 in isosceles triangle setting of drilling rod 1
Pipe 2 and high pressure water injection pipe 8 are starched, the high-pressure mortar spraying mouth 4 of the high-pressure slip-casting pipe 2 and the high pressure water spray nozzle 9 of high pressure water injection pipe 8 are arranged
Under the stirring blade 3 of nearly drill bit 5, and high pressure water spray nozzle 9 is on high-pressure mortar spraying mouth 4；The normal pressure of the common pressure grouting pipe 7 sprays
The binding site of drill bit 5 Yu drilling rod 1 is arranged in mouth 6, and revolves together to the soil body with high-pressure mortar spraying mouth 3 and high pressure water spray nozzle 9
Spray stirring.
The utility model uses in this way: the stirring blade 3 of drill bit of pile machine being rotated, cement grout passes through normal pressure
The normal pressure spout 6 of Grouting Pipe 7 injects stake holes, is first stirred by stirring drill bit to stake bottom absolute altitude, stir for the first time to the periphery soil body
Cutting, laggard horizontal high voltage water spray and high pressure jet grouting are mixed, high pressure water is by the high pressure water spray nozzle 9 of high pressure water injection pipe 8 first to week
The side soil body carries out secondary high-pressure cutting, and high pressure cement slurries pass through 4 high speed ejection of high pressure spout of high-pressure slip-casting pipe 2 and high three times
Cutting soil is pressed, while stirring promotion, most back spin stirs into stake, and speed of application is fast, and expanded diameter is big, and pile quality is good, work effect
Rate 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 scope of the claims of the utility model patent.
Claims (2)
1. a kind of double-high-pressure spun jet stirs drill bit, which is characterized in that the stirring drill bit structure includes drill bit and is equipped with stirring
The drilling rod of blade, the drilling rod is interior to be equipped with common pressure grouting pipe, is equipped in the drilling rod and sets with common pressure grouting pipe for isosceles triangle
The high-pressure slip-casting pipe and high pressure water injection pipe set, the high-pressure mortar spraying mouth of high-pressure slip-casting pipe and spraying water with high pressure for high pressure water injection pipe
Mouth is arranged under the stirring blade of nearly drill bit, and high pressure water spray nozzle is on high-pressure mortar spraying mouth；The common pressure grouting pipe it is normal
It presses notch setting in the binding site of drill bit and drilling rod, and whirl spraying is carried out to the soil body jointly with high-pressure mortar spraying mouth, high pressure water spray nozzle
Stirring cutting.
2. a kind of double-high-pressure spun jet described according to claim 1 stirs drill bit, which is characterized in that the high-pressure slip-casting pipe and
The pressure of slip casting and water filling in high pressure water injection pipe reaches 20MPa~40MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821903448.4U CN209162812U (en) | 2018-11-19 | 2018-11-19 | A kind of double-high-pressure spun jet stirring drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821903448.4U CN209162812U (en) | 2018-11-19 | 2018-11-19 | A kind of double-high-pressure spun jet stirring drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209162812U true CN209162812U (en) | 2019-07-26 |
Family
ID=67338933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821903448.4U Active CN209162812U (en) | 2018-11-19 | 2018-11-19 | A kind of double-high-pressure spun jet stirring drill bit |
Country Status (1)
| Country | Link |
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| CN (1) | CN209162812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197306A (en) * | 2018-11-19 | 2020-05-26 | 上海城地建设股份有限公司 | Double-high-pressure rotary-spraying stirring drill bit and construction method thereof |
-
2018
- 2018-11-19 CN CN201821903448.4U patent/CN209162812U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197306A (en) * | 2018-11-19 | 2020-05-26 | 上海城地建设股份有限公司 | Double-high-pressure rotary-spraying stirring drill bit and construction method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201806, B, Lane 518, Lane 1, Heng Yong Road, Shanghai, Jiading District 502-1 Co-patentee after: SHANGHAI CHENGDI ROCK-SOIL DESIGN Co.,Ltd. Patentee after: Shanghai chengdixiangjiang Data Technology Co.,Ltd. Co-patentee after: Shanghai Jingdi Construction Engineering Co.,Ltd. Address before: 201806, B, Lane 518, Lane 1, Heng Yong Road, Shanghai, Jiading District 502-1 Co-patentee before: SHANGHAI CHENGDI ROCK-SOIL DESIGN Co.,Ltd. Patentee before: SHANGHAI CHENGDI CONSTRUCTION Co.,Ltd. Co-patentee before: Shanghai Jingdi Construction Engineering Co.,Ltd. |