CN206571424U - High pressure base expanding and base expanding screw rod drilling equipment and its stake end enlarged footing - Google Patents
High pressure base expanding and base expanding screw rod drilling equipment and its stake end enlarged footing Download PDFInfo
- Publication number
- CN206571424U CN206571424U CN201621281859.5U CN201621281859U CN206571424U CN 206571424 U CN206571424 U CN 206571424U CN 201621281859 U CN201621281859 U CN 201621281859U CN 206571424 U CN206571424 U CN 206571424U
- Authority
- CN
- China
- Prior art keywords
- base expanding
- high pressure
- drilling equipment
- drilling
- helical blade
- 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.)
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 43
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000007582 slurry-cast process Methods 0.000 claims description 5
- 229920002472 Starch Polymers 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 239000002689 soil Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a kind of high pressure base expanding and base expanding screw rod drilling equipment, the drilling equipment has drilling rod, and it is connected in the drill bit with discharging opening of drilling rod lower end, turned clockwise along along the drilling-rod external wall and be provided with helical blade, several gap of spaced set on the helical blade, and the height of helical blade is 2~4cm.There is gap on helical blade, air duct, less churning resistance is formed, unearthed amount is former 10% measured that is unearthed.Its structure is novel, pile quality is good, be difficult bit bouncing.The invention also discloses a kind of formed stake end enlarged footing of application high pressure base expanding and base expanding long bolt drilling equipment, with enlarged footing body, the cylindrical pile body inwall of the enlarged footing body upper end has shallow-layer screw thread.
Description
Technical field
The utility model belongs to technical field of civil engineering, and in particular to a kind of high pressure base expanding and base expanding screw rod drilling equipment, also relates to
And a kind of stake end enlarged footing.
Background technology
At present in the foundation engineerings such as building, water conservancy, highway, double helix extruded and extended pile is pile foundation form conventional at present, this
Construction method is crept into squeezed hole, downward rotary drill squeezed hole using bidirectional helix closed extruding-enlarging aiguille and come out by rotary drill
The soil body can be squeezed into the wall of stake holes side, bidirectional helix closed extruding-enlarging aiguille is moved upwards and rotated squeezed stake holes again,
The slump soil body can be squeezed into the wall of stake holes side in stake holes in rotating up squeezed lifting, in upper rotation lifting simultaneously, start coagulation
Native pump fills piling to stake holes internal pressure.The subject matter of presence is first out to be transported up native rotary digging again squeezing to the pile lining of both sides again
Pressure, therefore the soil spun out can block the conveying channel that rotating vane is formed, and easily produce bit bouncing phenomenon.And discharge
Soil or mud, add bore forming difficulty and progress.
Notification number (CN103437340A), the Chinese patent of publication date (2013-12-11), discloses a kind of high-pressure rotary-spray
The method of grouting and reinforcing soft soil foundation, to the applied widely of soft soil foundation, mud, muck soil, cohesive soil, silt, loess,
The grounds such as sand, cobble, artificial earth fill and gravelly soil use method of the present utility model.But this method does not apply to grains of sand layer
Ground, and the aperture of the stake end enlarged footing formed is smaller, and amount of being unearthed is than larger.
Utility model content
The utility model solves the deficiencies in the prior art, and there is provided a kind of high pressure base expanding and base expanding screw rod drilling equipment, helical blade
It is upper that there is gap, form air duct, less churning resistance, and into stake be unearthed that amount is small, pile bearing capacity is high, pile quality
It is good.
The technical scheme that the utility model is used is：A kind of high pressure base expanding and base expanding screw rod drilling equipment, the drilling equipment tool
There is drilling rod, and be connected in the drill bit with discharging opening of drilling rod lower end, turned clockwise along along the drilling-rod external wall and be provided with spiral shell
Several gap of spaced set on vane piece, the helical blade, and the height of helical blade is 2~4cm.
Preferably, the drilling equipment also has slurry casting machine and high pressure nozzle, and described slurry casting machine one end is connected with Grouting Pipe,
The Grouting Pipe is fixed on drilling rod madial wall, and the high pressure nozzle is arranged at the inner side of drill bit flank, and with the Grouting Pipe
Lower end is connected, and the jet of the high pressure nozzle is located at drill bit outward flange, and the jet is three groups and set into T-type structure,
Wherein two groups jets are located in same level, another group of jet it is opening down.
Preferably, the width of the gap is 2~4cm.
Another technical scheme that the utility model is used, the stake end that high pressure base expanding and base expanding screw rod drilling equipment is formed is expanded
Major part, with enlarged footing body, the cylindrical pile body inwall of the enlarged footing body upper end has shallow-layer screw thread.
Compared to prior art, the utility model has the advantage that：
1st, there is gap on helical blade, air duct is formed, less churning resistance, amount of being unearthed for former amount of being unearthed 10~
30%.Its structure is novel, pile quality is good, be difficult bit bouncing.
2nd, high pressure nozzle has three groups of jets or one group, by the stake end enlarged footing aperture of three groups of jets formation more
Greatly, and amount of being unearthed is small, pile bearing capacity is high, and pile quality is good.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model stake end enlarged footing.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of high pressure base expanding and base expanding screw rod drilling equipment, structure is as shown in figure 1, the drilling equipment has drilling rod 1, and is connected in
The drill bit 4 with discharging opening of the lower end of drilling rod 1, turns clockwise along along the outer wall of drilling rod 1 and is provided with helical blade 2, described
Several gap 3 of spaced set on helical blade 2, and the height of helical blade 2 is 2~4cm.
In the present embodiment, the drilling equipment also has slurry casting machine 5 and high pressure nozzle 7, the one end of slurry casting machine 5 connection
There is Grouting Pipe 6, the Grouting Pipe 6 is fixed on the madial wall of drilling rod 1, and the high pressure nozzle 7 is arranged at the inner side of the flank of drill bit 4,
And be connected with the lower end of Grouting Pipe 6, the jet 71 of the high pressure nozzle 7 is located at the outward flange of drill bit 4, and the jet 71 is
Three groups and set into T-type structure, wherein two groups of jets 71 are located in same level, the opening court of another group of jet 71
Under.
Wherein, the width of the gap 3 is 2~4cm.
The stake end enlarged footing that high pressure base expanding and base expanding screw rod drilling equipment is formed, with enlarged footing body 8, the enlarged footing body
The inwall of cylindrical pile body 9 of 8 upper ends has shallow-layer screw thread 10.
It should be noted that the device is applied on the end pile enlarged foot of grains of sand layer ground, the effect of gap 3 is to be formed
Air duct, reduces resistance during churning pile, and amount of being unearthed during pile is smaller, and its amount of being unearthed is 10% or so.
The jet 71 is three groups and set into T-type structure, wherein two groups of jets 71 are located in same level, separately
One group of jet 71 it is opening down, the stake end enlarged footing of more large aperture is formed by the jet 71 of high pressure nozzle 7, and
Amount of being unearthed is small, and pile bearing capacity is high, and pile quality is good.
A kind of pile making method of high pressure base expanding and base expanding screw rod drilling equipment, comprises the following steps：
1st, stake end enlarged footing, is drilled to designed elevation with screw rod drilling equipment, when carrying drilling equipment, from installed in brill
High-pressure medium is sprayed to the side wall of stake holes bottom in high pressure nozzle on the inside of the rostral wing, makes bottom hole in the presence of three groups of jets
Enlarged-diameter, then down hole device is to bottom hole, and by hollow drilling rod from the discharging opening of drill bit bottom to stake holes internal pressure
Fill mixed mud.
2nd, formed shaped pile, it is upper carry drilling tool during, from hole wall from the nozzle on the inside of drill bit flank to stake holes spray
High-pressure medium is penetrated, expands the local hole position of stake holes, and continues to fill mixed mud from the discharging opening of drill bit bottom to hole internal pressure, is formed different
Type stake.
Embodiment
Stake end enlarged footing, is drilled to designed elevation with screw rod drilling equipment, when carrying drilling equipment, from installed in drill bit
To the side wall jet cement slurries of stake holes bottom in high pressure nozzle on the inside of flank, make bottom hole straight in the presence of three groups of jets
Footpath expands, and then down hole device is filled to bottom hole, and by hollow drilling rod from the discharging opening of drill bit bottom to stake holes internal pressure
Cement grout.The grouting pressure of wherein cement grout is maintained at 18~22 MPas, and the lifting speed of drilling equipment is maintained at 0.3~
0.5m/Min。
Wherein, the stake end enlarged footing formed by this method, its aperture is bigger, and unearthed amount is small, and stake end is held without loosened soil
Carry force value high, pile-forming speed is fast, and quality is good, no modeling footpath pile breaking phenomenon, construction technology is simple.
Above-described embodiment, simply preferred embodiment of the present utility model, not for limiting implementation model of the present utility model
Enclose, therefore all equivalent variations done with content described in the utility model claim, all should be included in the utility model right will
Within the scope of asking.
Claims (4)
1. high pressure base expanding and base expanding screw rod drilling equipment, the drilling equipment has drilling rod（1）, and it is connected in drilling rod（1）Lower end is carried
The drill bit of discharging opening（4）, it is characterised in that along the drilling rod（1）Turned clockwise on outer wall and be provided with helical blade（2）, institute
State helical blade（2）Several gap of upper spaced set（3）, and helical blade（2）Height be 2 ~ 4cm.
2. high pressure base expanding and base expanding screw rod drilling equipment according to claim 1, it is characterised in that the drilling equipment also has note
Starch device（5）And high pressure nozzle（7）, the slurry casting machine（5）One end is connected with Grouting Pipe（6）, the Grouting Pipe（6）It is fixed on drilling rod
（1）On madial wall, the high pressure nozzle（7）It is arranged at drill bit（4）The inner side of flank, and with the Grouting Pipe（6）Lower end is connected,
The high pressure nozzle（7）Jet（71）Positioned at drill bit（4）Outward flange, the jet（71）For three groups and into T-type structure
Set, wherein two groups of jets（71）In same level, another group of jet（71）It is opening down.
3. high pressure base expanding and base expanding screw rod drilling equipment according to claim 2, it is characterised in that the gap（3）Width be 2
~4cm。
4. the stake end that the high pressure base expanding and base expanding screw rod drilling equipment according to any one of claim 2 to 3 claim is formed is expanded
Major part, with enlarged footing body（8）, it is characterised in that the enlarged footing body（8）The cylindrical pile body of upper end（9）Inwall has
There is shallow-layer screw thread（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621281859.5U CN206571424U (en) | 2016-11-24 | 2016-11-24 | High pressure base expanding and base expanding screw rod drilling equipment and its stake end enlarged footing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621281859.5U CN206571424U (en) | 2016-11-24 | 2016-11-24 | High pressure base expanding and base expanding screw rod drilling equipment and its stake end enlarged footing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206571424U true CN206571424U (en) | 2017-10-20 |
Family
ID=60063793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621281859.5U Active CN206571424U (en) | 2016-11-24 | 2016-11-24 | High pressure base expanding and base expanding screw rod drilling equipment and its stake end enlarged footing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206571424U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481277A (en) * | 2016-11-24 | 2017-03-08 | 刘泽华 | High pressure base expanding and base expanding screw rod drilling equipment and its stake end enlarged footing |
| CN107059871A (en) * | 2017-03-08 | 2017-08-18 | 沈健龙 | The stake equipment of the expansion based on existing stake that a kind of municipal road and bridge engineering is used |
| CN108868661A (en) * | 2018-08-31 | 2018-11-23 | 河南铁福来装备制造股份有限公司 | A kind of brill rushes dual-purpose three wings screw high-pressure sealing drilling rod |
-
2016
- 2016-11-24 CN CN201621281859.5U patent/CN206571424U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481277A (en) * | 2016-11-24 | 2017-03-08 | 刘泽华 | High pressure base expanding and base expanding screw rod drilling equipment and its stake end enlarged footing |
| CN107059871A (en) * | 2017-03-08 | 2017-08-18 | 沈健龙 | The stake equipment of the expansion based on existing stake that a kind of municipal road and bridge engineering is used |
| CN107059871B (en) * | 2017-03-08 | 2018-12-18 | 杭州曼京科技有限公司 | A kind of expansion stake equipment based on existing stake that municipal administration road and bridge engineering uses |
| CN108868661A (en) * | 2018-08-31 | 2018-11-23 | 河南铁福来装备制造股份有限公司 | A kind of brill rushes dual-purpose three wings screw high-pressure sealing drilling rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210721 Address after: 721499 in Donghu Hotel, north section of Donghu Road, Fengxiang County, Baoji City, Shaanxi Province Patentee after: Fengxiang posent northwest Geotechnical Engineering Co.,Ltd. Address before: 721400 No. 56, group 8, baijiaao village, Nanzhi Town, Fengxiang County, Baoji City, Shaanxi Province Patentee before: Liu Zehua |