CN208309574U - A kind of cast-in-situ bored pile multistage drilling rod - Google Patents
A kind of cast-in-situ bored pile multistage drilling rod Download PDFInfo
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- CN208309574U CN208309574U CN201820735067.3U CN201820735067U CN208309574U CN 208309574 U CN208309574 U CN 208309574U CN 201820735067 U CN201820735067 U CN 201820735067U CN 208309574 U CN208309574 U CN 208309574U
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Abstract
A kind of cast-in-situ bored pile multistage drilling rod, including multistage drilling rod, pass through flanged joint between drilling rod and drilling rod；Two agitating paddles are at least installed in addition to the end drilling rod of multistage drilling rod, on other drilling rods, agitating paddle is more than or equal to 50 centimetres with agitating paddle vertical interval and is mutually perpendicular to；More iron wires wave-shaped are welded on the end drilling rod of the multistage drilling rod, the length of the iron wire is less than or equal to the diameter of bored concrete pile；The both ends that the iron wire part body of rod is welded on the drilling rod of end are respectively fixed with an agitating paddle；The agitating paddle is constituted by blade and paddle are firm, the firm hooping of the paddle on the drilling rod, the blade at least two panels and blade face be fixed on upwards the paddle it is firm on；The end drilling rod top of the multistage drilling rod is welded with stirring conehead.Cast-in-situ bored pile multistage drilling rod described in the utility model have structure is simple and convenient to operate, scarfing cinder is high-efficient, scarfing cinder depth is deep, good in economic efficiency, be applicable to the cast-in-situ bored pile borehole cleaning of different depth.
Description
Technical field
The utility model relates to construction technical field of tools more particularly to a kind of cast-in-situ bored pile multistage drilling rods.
Background technique
" technical code for building pile foundation " regulation, Pile bottom sediment thickness control standard are as follows: type stake is held at end, is not answered
Greater than 50mm；Piles for Friction Piles should not exceed 100mm；Routine sediment thickness measuring method when construction, is that one end is hung with reinforcing bar
Lining rope is put into drilling, completely with feeling, is said mostly just more, is said few with regard to lacking.If sediment is not cleaned out, last concrete perfusion
Later, it will appear a large amount of sediments on surface.Bored concrete pile is concealed work, and a large amount of sediments for being pressed against surface can see, may
There are more sediments to be mixed into bored concrete pile, pile quality cannot be guaranteed, leave severe compromise.
Existing frequently-used borehole cleaning method mainly uses slush pump, is pressed into 1.15 left side of specific gravity to bottom hole with middling speed by drilling rod
The right side, the mud of sand factor < 4% are replaced out the mud more than suspension boring mud in hole.This method encounters the larger walk of bottom hole
It is difficult to remove；When sand content in mud is higher, thorough borehole cleaning purpose is also not achieved.
In addition, can generate convective motion in hole when the small mud of relative density is from bottom hole injection hole compared with weighted mud,
Taking a long time to reduces specific gravity of mud in hole, and borehole cleaning is taken time longer.And when sand content in mud is higher,
Cannot use clear water borehole cleaning, otherwise sand sedimentation and borehole cleaning purpose is not achieved.
Utility model content
The utility model in view of the deficiencies of the prior art, proposes a kind of cast-in-situ bored pile multistage drilling rod, which answers
With sufficiently the sediment at stake bottom capable of being broken up, and mud can be pushed to move upwards, facilitate the quick borehole cleaning of bored concrete pile.
A kind of cast-in-situ bored pile multistage drilling rod described in the utility model, including multistage drilling rod lead between drilling rod and drilling rod
Cross flanged joint；
Two agitating paddles, agitating paddle and agitating paddle are at least installed in addition to the end drilling rod of multistage drilling rod, on other drilling rods
Vertical interval is more than or equal to 50 centimetres and is mutually perpendicular to；
More iron wires wave-shaped are welded on the end drilling rod of the multistage drilling rod, the length of the iron wire is less than etc.
In the diameter of bored concrete pile；
The both ends that the iron wire part body of rod is welded on the drilling rod of end are respectively fixed with an agitating paddle；
The agitating paddle is constituted by blade and paddle are firm, and the firm hooping of paddle is on the drilling rod, the blade at least two
Piece and blade face be fixed on upwards the paddle it is firm on；
The end drilling rod top of the multistage drilling rod is welded with stirring conehead.
Further, the blade be two panels or three pieces and wait radians be distributed in the paddle it is firm on, the blade face of the blade
In oblique helicoid.
Further, the multistage drilling rod end has the body of rod no more than 1 meter of length to weld by iron wire.
Further, the blade face of the blade is in oblique helicoid.
The beneficial effect of technical solution described in the utility model is: by being arranged on cast-in-situ bored pile multistage drilling rod top
Conehead is stirred, the sediment of stake holes bottom can be stirred completely and, the rock grain in sediment is made to be in suspended state；By more
Several iron wires are set on the drilling rod of grade drilling rod end, can will stir the sediment that conehead stirs and sufficiently break up；By being welded with iron wire
End drilling rod two sides an agitating paddle is respectively set sent so that being stirred the slurry liquid that conehead and iron wire are broken up and being pushed upwardly；It is logical
It crosses and several agitating paddles is set upwards in turn on multistage drilling rod, effectively push up the sediment that stake bottom rises step by step, improve
The carrying efficiency of sediment, reduces sediment thickness, and then improve borehole cleaning efficiency and bearing capacity of pile foundation;Meanwhile stake bottom slurry
Concentration is higher, and the mud that blade pushes up has painting effect to hole wall, and the effect of lifting of blade increases the circulation of mud
Speed.By above-mentioned setting, the mud sufficient degree in construction hole is dispersed, and effectively accelerates the ascent rate of mud, from
And construction speed is accelerated, save construction cost.
Cast-in-situ bored pile multistage drilling rod described in the utility model is with structure is simple and convenient to operate, scarfing cinder is high-efficient, scarfing cinder
Depth is deep, good in economic efficiency, is applicable to the cast-in-situ bored pile borehole cleaning of different depth.
Detailed description of the invention
Fig. 1 is a kind of cast-in-situ bored pile multistage jackrod structure schematic diagram described in the utility model.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, combined with specific embodiments below to this
Invention is described in further detail.
As shown in Figure 1, a kind of cast-in-situ bored pile multistage drilling rod 1, including multistage drilling rod, pass through between drilling rod and drilling rod
Flanged joint；
Two agitating paddles, agitating paddle and agitating paddle are at least installed in addition to the end drilling rod of multistage drilling rod, on other drilling rods
Vertical interval is more than or equal to 50 centimetres and is mutually perpendicular to；
More iron wires 4 wave-shaped are welded on the end drilling rod of the multistage drilling rod, the length of the iron wire 4 is less than
Equal to the diameter of bored concrete pile；
The both ends that the iron wire part body of rod is welded on the drilling rod of end are respectively fixed with an agitating paddle；
The agitating paddle is made of blade 2 and paddle firm 3, and firm 3 hooping of paddle is on the drilling rod 1, and the blade is at least
Have two panels and blade face be fixed on upwards the paddle it is firm on；
The end drilling rod top of the multistage drilling rod is welded with stirring conehead 5.
The blade be two panels or three pieces and wait radians be distributed in the paddle it is firm on, the blade face of the blade is in inclined screw
Face.The multistage drilling rod end has the body of rod no more than 1 meter of length to weld by iron wire.The blade face of the blade is in oblique helicoid.
When using cast-in-situ bored pile multistage drilling rod described in the utility model, according to construction hole depth, multistage drilling rod is connected
It is put into drilling after connecing, and visits the stirring conehead of drilling bottom end to construction bottom hole, dally drilling rod, so that mud normal circulation,
By means of the effect of lifting of agitating paddle, accelerates the mud that suspension boring mud is more in hole and swap out speed.
During boring borehole cleaning under cast-in-situ bored pile, the fixed stirring conehead in bottom and steel wire can fill the sediment in hole
The upwards thrust divided and broken up, while being generated using agitating paddle rotation, the sediment that stake bottom rises effectively is pushed up, mention step by step
The high carrying efficiency of sediment, reduces sediment thickness, and then improve borehole cleaning efficiency and bearing capacity of pile foundation;Meanwhile stake bed mud
It is higher to starch concentration, the mud that blade pushes up has painting effect to hole wall, and the effect of lifting of blade increases following for mud
Ring speed accelerates the formation of mudcake, reduces the generation of collapse hole phenomenon.
In use, mud circulation a period of time is kept, clear water is used instead and changes slurry borehole cleaning, gradually change the mud in hole
Out, until the mud balance that swaps out meets relevant regulations.
A kind of cast-in-situ bored pile multistage drilling rod provided by the utility model is described in detail above, is answered herein
With embodiment, the principle and implementation of this application are described, and the above embodiments are only used to help understand
The present processes and its core concept；At the same time, for those skilled in the art is having according to the thought of the application
There will be changes in body embodiment and application range, in conclusion the content of the present specification should not be construed as to the application
Limitation.
Claims (4)
1. a kind of cast-in-situ bored pile multistage drilling rod, it is characterised in that: cast-in-situ bored pile multistage drilling rod includes multistage drilling rod, drilling rod with
Pass through flanged joint between drilling rod；
Two agitating paddles are at least installed in addition to the end drilling rod of multistage drilling rod, on other drilling rods, agitating paddle is vertical with agitating paddle
Spacing is more than or equal to 50 centimetres and is mutually perpendicular to；
More iron wires wave-shaped are welded on the end drilling rod of the multistage drilling rod, the length of the iron wire is less than or equal to fill
Infuse the diameter of stake；
The both ends that the iron wire part body of rod is welded on the drilling rod of end are respectively fixed with an agitating paddle；
The agitating paddle is constituted by blade and paddle are firm, the firm hooping of the paddle on the drilling rod, the blade at least two panels and
Blade face be fixed on upwards the paddle it is firm on；
The end drilling rod top of the multistage drilling rod is welded with stirring conehead.
2. a kind of cast-in-situ bored pile multistage drilling rod as described in claim 1, it is characterised in that: the blade is two panels or three pieces
And wait radians be distributed in the paddle it is firm on, the blade face of the blade is in oblique helicoid.
3. a kind of cast-in-situ bored pile multistage drilling rod as described in claim 1, it is characterised in that: the multistage drilling rod end has not
The body of rod more than 1 meter of length is welded by iron wire.
4. a kind of cast-in-situ bored pile multistage drilling rod as described in claim 1, it is characterised in that: the blade face of the blade is in oblique spiral shell
Radial facing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820735067.3U CN208309574U (en) | 2018-05-17 | 2018-05-17 | A kind of cast-in-situ bored pile multistage drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820735067.3U CN208309574U (en) | 2018-05-17 | 2018-05-17 | A kind of cast-in-situ bored pile multistage drilling rod |
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| Publication Number | Publication Date |
|---|---|
| CN208309574U true CN208309574U (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820735067.3U Active CN208309574U (en) | 2018-05-17 | 2018-05-17 | A kind of cast-in-situ bored pile multistage drilling rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094168A (en) * | 2019-04-20 | 2019-08-06 | 中国二十冶集团有限公司 | The processing unit and its application method of cast-in-situ bored pile stone |
-
2018
- 2018-05-17 CN CN201820735067.3U patent/CN208309574U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094168A (en) * | 2019-04-20 | 2019-08-06 | 中国二十冶集团有限公司 | The processing unit and its application method of cast-in-situ bored pile stone |
| CN110094168B (en) * | 2019-04-20 | 2021-08-13 | 中国二十冶集团有限公司 | Treatment device for rock blocks of cast-in-situ bored pile and application method of treatment device |
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