CN108086915A - A kind of major diameter jet mixing drill bit - Google Patents
A kind of major diameter jet mixing drill bit Download PDFInfo
- Publication number
- CN108086915A CN108086915A CN201810007864.4A CN201810007864A CN108086915A CN 108086915 A CN108086915 A CN 108086915A CN 201810007864 A CN201810007864 A CN 201810007864A CN 108086915 A CN108086915 A CN 108086915A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- pressure
- jet mixing
- drilling rod
- major diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 claims abstract description 16
- 238000007569 slipcasting Methods 0.000 claims abstract description 9
- 239000002689 soil Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 abstract description 12
- 238000010276 construction Methods 0.000 description 7
- 239000004568 cement Substances 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000209202 Bromus secalinus Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of major diameter jet mixing drill bit, 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 spout of the high-pressure slip-casting pipe is arranged under the agitating vane of nearly drill bit；The normal pressure notch setting of the common pressure grouting pipe carries out jet mixing to the soil body jointly in drill bit and the binding site of drilling rod, normal pressure spout with high pressure spout.The present invention has simple in structure 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 cycle is short, further lowers engineering cost, improves Business Economic Benefit.
Description
Technical field
The present invention relates to pile foundation drilling rig technique field, especially a kind of churning that supporting construction is stirred for major diameter rotation is stirred
Mix drill bit.
Background technology
At present, the domestic supporting for deep basal pit generally all stirs supporting construction using rotation, such as gravity type retaining support
Retaining wall uses substantially to be overlapped relatively more between twin shaft and three axis technique stakes, due to rotation, to stir drill bit drilling diameter small, it is impossible to 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 cheats interior reinforce and generally use
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 into
Quality of pile.
The content of the invention
The purpose of the present invention is in view of the deficiencies of the prior art and provide a kind of major diameter jet mixing drill bit, using leaf
Under piece adds the jackrod structure of high-pressure slip-casting mouth, effectively improves rotation and stirs drill bit and stir diameter to the chip ability of the soil body and rotation, significantly
Construction period is shortened, stirring support pile for the rotation of deep basal pit major diameter, to provide that a kind of pile quality is good, speed of application is fast big straight
Drill bit is stirred in footpath rotation, further lowers engineering cost, improves Business Economic Benefit.
The object of the present invention is achieved like this：A kind of major diameter jet mixing drill bit, including drill bit and equipped with stirring
The drilling rod of blade, drilling rod is interior to be equipped with common pressure grouting pipe, its main feature is that it is symmetrically arranged height to be equipped in drilling rod with common pressure grouting pipe
Pressure grouting pipe, the high pressure spout of the high-pressure slip-casting pipe are arranged under the agitating vane of nearly drill bit；The common pressure grouting pipe it is normal
Pressing notch setting, normal pressure spout carries out jet mixing to the soil body jointly with high pressure spout in drill bit and the binding site of drilling rod.
The present invention have compared with prior art it is simple in structure, it is big to the chip ability of the soil body, the diameter of jet mixing is big,
It is efficient, especially meet the requirement that deep basal pit stirs major diameter rotation support pile, pile quality is good, speed of application is fast, the cycle is short, into
One step lowers engineering cost, improves Business Economic Benefit.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the top view of Fig. 1.
Specific embodiment
Refering to 1~Fig. 2 of attached drawing, the present invention is by drill bit 5 with being equipped with high-pressure slip-casting pipe 2, agitating vane 3 and common pressure grouting pipe 7
Drilling rod 1 form, it is symmetrically arranged high-pressure slip-casting pipe 2 to be equipped in the drilling rod 1 with common pressure grouting pipe 7, the high-pressure slip-casting
The high pressure spout 4 of pipe 2 is arranged under the agitating vane 3 of nearly drill bit 5；The normal pressure spout 6 of the common pressure grouting pipe 7 is arranged on drill bit
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 present invention so uses：The drill bit 5 of stake machine and agitating vane 3 are rotated into sinking, cement grout passes through normal pressure
The normal pressure spout 6 of Grouting Pipe 7 injects stake holes, stirs to the laggard horizontal high voltage rotary jet grouting of stake bottom absolute altitude.Cement grout is by high pressure injection
The high pressure spout 4 of slurry pipe 2 sprays at a high speed and cutting soil, while stirs promotion, and finally rotation stirs into stake.The present invention is for larger straight
The construction that support pile is stirred in footpath rotation has the advantages of pile quality is good, and work efficiency is high.
Above simply the invention will be further described, all for the equivalent reality of the present invention not to limit patent of the present invention
It applies, is intended to be limited solely by within the right of patent of the present invention.
Claims (1)
1. a kind of major diameter jet mixing drill bit, the drilling rod including drill bit and equipped with agitating vane, 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 to be equipped in drilling rod with common pressure grouting pipe, the height of the high-pressure slip-casting pipe
Notch setting is pressed under the agitating vane of nearly drill bit；The normal pressure notch setting of the common pressure grouting pipe is in the combination of 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 |
|---|---|---|---|
| CN201810007864.4A CN108086915A (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 |
|---|---|---|---|
| CN201810007864.4A CN108086915A (en) | 2018-01-04 | 2018-01-04 | A kind of major diameter jet mixing drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108086915A true CN108086915A (en) | 2018-05-29 |
Family
ID=62181550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810007864.4A Pending CN108086915A (en) | 2018-01-04 | 2018-01-04 | A kind of major diameter jet mixing drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086915A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322623A (en) * | 2018-10-19 | 2019-02-12 | 广州市第二建筑工程有限公司 | A kind of pile machine equipment and construction method of major diameter rotary churning pile |
| CN110374097A (en) * | 2019-07-26 | 2019-10-25 | 北京中岩大地科技股份有限公司 | The construction method for improving bearing capacity of pile foundation is stirred based on major diameter |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1542235A (en) * | 2003-04-29 | 2004-11-03 | 天津市水利科学研究所 | Strong-core deep injection stirring pile-making method and special drill bit therefor |
| JP2007032100A (en) * | 2005-07-27 | 2007-02-08 | East Japan Railway Co | Steel pipe pile |
| CN105256795A (en) * | 2015-10-21 | 2016-01-20 | 江国华 | End support type thread core composite pile and construction device and method for end support type thread core composite pile |
| CN207701084U (en) * | 2018-01-04 | 2018-08-07 | 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 CN201810007864.4A patent/CN108086915A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1542235A (en) * | 2003-04-29 | 2004-11-03 | 天津市水利科学研究所 | Strong-core deep injection stirring pile-making method and special drill bit therefor |
| JP2007032100A (en) * | 2005-07-27 | 2007-02-08 | East Japan Railway Co | Steel pipe pile |
| CN105256795A (en) * | 2015-10-21 | 2016-01-20 | 江国华 | End support type thread core composite pile and construction device and method for end support type thread core composite pile |
| CN207701084U (en) * | 2018-01-04 | 2018-08-07 | 上海智平基础工程有限公司 | A kind of major diameter jet mixing drill bit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322623A (en) * | 2018-10-19 | 2019-02-12 | 广州市第二建筑工程有限公司 | A kind of pile machine equipment and construction method of major diameter rotary churning pile |
| 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 |
| CN110374097A (en) * | 2019-07-26 | 2019-10-25 | 北京中岩大地科技股份有限公司 | The construction method for improving bearing capacity of pile foundation is stirred based on major diameter |
| WO2021017799A1 (en) * | 2019-07-26 | 2021-02-04 | 北京中岩大地科技股份有限公司 | Construction method for improving bearing capacity of pile foundation on basis of large-diameter mixing |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |