CN206346718U - A kind of auger stem, rig and the stake holes being molded by auger stem and VDS bored concrete piles - Google Patents
A kind of auger stem, rig and the stake holes being molded by auger stem and VDS bored concrete piles Download PDFInfo
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- CN206346718U CN206346718U CN201621365196.5U CN201621365196U CN206346718U CN 206346718 U CN206346718 U CN 206346718U CN 201621365196 U CN201621365196 U CN 201621365196U CN 206346718 U CN206346718 U CN 206346718U
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- reducer
- concrete
- auger stem
- blade
- annular
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Abstract
The utility model is related to auger stem, rig and the stake holes being molded by auger stem and VDS bored concrete piles, auger stem includes the middle body of rod and is arranged at the helical blade in intermediate bar external week, helical blade is made up of at least two blade units being sequentially arranged along the hand of spiral of helical blade, wherein at least one blade unit has along the hand of spiral that width is by the narrow reducer broadened from the bottom to top, and reducer has the reducer extruding side face for being used to extrude corresponding boring mud and/or concrete.The utility model solves the problem of stake holes hole wall that existing auger stem molds can not provide higher collateral resistance for concrete-pile bar.
Description
Technical field
Auger stem, rig and the stake holes being molded by auger stem and VDS that the utility model is related in a work field are filled
Note stake.
Background technology
Auger stem is the conventional drilling rod in a work field, and existing auger stem includes the middle body of rod and is arranged at centre
The helical blade of body of rod periphery, helical blade is the wall thickness structure such as isometrical.In the operation of stake work, auger stem is by the power of rig
Head is driven and Auger drilling, and in drilling process, the boring mud produced due to drilling is transported to along the upper surface of helical blade
Earth's surface, after stake holes is formed, the concrete perfusion into stake holes, the concrete of solidification is concrete-pile bar and stake holes hole wall, stake holes
Bottom hole forms bored concrete pile together.The purpose of pile foundation construction is raising bearing capacity, and bearing capacity derives from stratum, and stratum is that have solid
Particle, air and water composition, stratum bearing capacity desirable parameters can be improved by improving density of solid particles discharge air and water.Stake by
Power is from the collateral resistance on stake holes hole wall stratum and the bottom bearing of stake holes bottom hole supporting course, according to the Force principle of stake, fully closes
Reason calls raising stratum desirable parameters to be the problem of pile foundation industry is inquired into always with the bearing capacity for improving stake.
And in the prior art, conventional auger stem is only capable of playing the purpose for conveying boring mud from the bottom to top, drilling
Hole wall can not obtain compacted plus real, and stake holes hole wall can not provide higher collateral resistance for concrete-pile bar causes the carrying of bored concrete pile
Power is not very high.Surround in the prior art and improve all collateral resistances of stake and stake bottom load to improve the major technique of bearing capacity
Have：The end for being intended to increase stake using support disk pile and DX withstands forces area, although bearing capacity effect is preferable, but is moved again after pore-forming
Machine is put into that expander is expanding to drag for pile after slag telephone-moving, construction technology very complicated again.Pass through reserved note after post -grou ting -filling -pile
Slurry pipe is intended to improve stake bottom load and all collateral resistances of stake to stake bottom and side wall and pressure slurry, and bearing power increase effect is obvious, but cement
Slurry pressure filling poor controllability stake easily occurs and pile bearing capacity difference is big.Certainly there are some other to increase all collateral resistances of stake and stake bottom
Engineering method for the purpose of end resistance, but these engineering methods all have construction complexity, and supporting drill configuration is complicated, rig fault rate is high
Etc. various problems.
Utility model content
The purpose of this utility model is to provide a kind of auger stem, to solve the stake holes hole that existing auger stem is molded
The problem of wall can not provide higher collateral resistance for concrete-pile bar；The purpose of this utility model also resides in offer one kind and uses the spiral shell
The rig of rotary drill bar and the stake holes molded by the auger stem and VDS bored concrete piles.
In order to solve the above problems, the technical scheme of rig is in the utility model：
Rig, including actuating unit and the auger stem that is driven by actuating unit, auger stem include the middle body of rod and set
The helical blade in intermediate bar external week is placed in, helical blade is by least two leaves being sequentially arranged along the hand of spiral of helical blade
Blade unit is constituted, and wherein at least one blade unit is with along the hand of spiral, width, by the narrow reducer broadened, becomes from the bottom to top
Footpath section has the reducer extruding side face for being used to extrude corresponding boring mud and/or concrete.
The thickness of the part or all of blade unit of reducer from the bottom to top gradually thickening spaced apart in the axial direction two
Spacing between individual blade unit is tapered into from the bottom to top, running orbit change above and below boring mud is reached that allotment boring mud is arrived up and down
The compacted purpose in the relatively small position of hole wall lateral spacing power.
Blade unit is also included in reducer upper end along the hand of spiral consistent isometrical section of width from the bottom to top, isometrical
Section has isometrical section of extruding side face for being used for extruding the boring mud and/or concrete, isometrical section of part or all of blade unit
Thickness it is gradually thickening from the bottom to top.
The technical scheme of auger stem is in the utility model：
Auger stem, including the middle body of rod and the helical blade for being arranged at intermediate bar external week, helical blade is by least two
The blade unit that the individual hand of spiral along helical blade is sequentially arranged is constituted, and wherein at least one blade unit has along spiral side
To width from the bottom to top by the narrow reducer broadened, reducer has the reducer for being used for extruding corresponding boring mud and/or concrete
Extrude side face.
The thickness of the part or all of blade unit of reducer from the bottom to top gradually thickening spaced apart in the axial direction two
Spacing between individual blade unit is tapered into from the bottom to top, running orbit change above and below boring mud is reached that allotment boring mud is arrived up and down
The compacted purpose in the relatively small position of hole wall lateral spacing power.
Blade unit is also included in reducer upper end along the hand of spiral consistent isometrical section of width from the bottom to top, isometrical
Section has isometrical section of extruding side face for being used for extruding the boring mud and/or concrete, isometrical section of part or all of blade unit
Thickness it is gradually thickening from the bottom to top.
The technical scheme of VDS bored concrete piles is in the utility model：
VDS bored concrete piles, including stake holes and the concrete-pile bar that is placed in stake holes, the hole wall of stake holes by with the concrete-pile
The annular compacted body of bar contact is constituted, and annular compacted body includes having for by blade unit in annular ground layer, annular ground layer
Reducer extruding side face extruding and the boring mud and/or concrete that submerge in the annular ground layer.
The thickness that the compacted body of annular corresponds to soft formation is more than the thickness that annular compacted body corresponds to hard formation.
The technical scheme of stake holes is in the utility model：
Stake holes, the hole wall of stake holes is made up of annular compacted body, and annular compacted body is included in annular ground layer, annular ground layer
There is the boring mud and/or concrete submerged for the reducer extruding side face extruding by blade unit in the annular ground layer.
The thickness that the compacted body of annular corresponds to soft formation is more than the thickness that annular compacted body corresponds to hard formation.
The beneficial effects of the utility model are：Using the auger stem in the utility model in drilling construction, auger
Bar rotary drilling, because the boring mud that drilling process is produced then is conveyed upward along helical blade, due at least one blade unit
With along the hand of spiral, width is by the narrow reducer broadened from the bottom to top, therefore boring mud can fall into reducing at the reducing fragment position
The outside of section, with the rotation of helical blade, boring mud is carried out outside by center by the reducer extruding side face extruding of reducer
Centrifugal motion, boring mud is squeezed into annular ground layer and formed for constituting stake holes by the reducer extruding side face of reducer
The annular compacted body of hole wall, by the extruding of boring mud, annular ground layer is squeezed close plus reality, and moisture and air are excluded, circlewise
The density of basic unit is increased, so that stake holes hole wall can provide higher collateral resistance for concrete-pile bar.
Further, the thickness of the part or all of blade unit of reducer is gradually thickening from the bottom to top, this aspect meeting
Increase the area that reducer extrudes side face, improve extruding efficiency, two blade lists spaced apart in the axial direction are also caused in addition
Spacing between member is tapered into from the bottom to top, that is to say, that the corresponding helical pitch of helical blade becomes narrow gradually from the bottom to top,
This is conducive to more boring muds or concrete to be pressed against on the outside of helical blade, is conducive to boring mud or concrete preferably centrifugal fortune
It is dynamic, be conducive to allotment operation above and below boring mud to reinforce to the less soft formation of opposite side limiter.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment 1 of rig in the utility model；
Fig. 2 is the cooperation schematic diagram of helical blade and the middle body of rod in Fig. 1；
Fig. 3 is Fig. 2 top view；
Fig. 4 is the structural representation of the embodiment 2 of rig in the utility model；
Fig. 5 is the structural representation of the embodiment 1 of VDS bored concrete piles in the utility model；
Fig. 6 is the structural representation of the embodiment 2 of VDS bored concrete piles in the utility model.
Embodiment
The embodiment 1 of rig is as shown in Fig. 1 ~ 3：The auger stem driven including actuating unit and by actuating unit, spiral
Drilling rod includes the middle body of rod 2 and is arranged at the helical blade 3 in intermediate bar external week, and the middle body of rod is one vertically extending
Isometrical hollow bar structure.Actuating unit includes the unit head 1 of outputting rotary power and the impactor of output vibration power, wherein
The structure of unit head and impactor and Publication No. CN103277044A, apply for entitled " SDL work driving methods and be exclusively used in
Unit head is identical with impactor in the patent publication of the pile work drilling machine of implementation this method ", will not be described in detail herein.
The blade unit 31 that helical blade 3 is sequentially connected with by multiple hands of spiral along helical blade is constituted, each leaf
Blade unit 31 be respectively provided with along the hand of spiral from the bottom to top width by the narrow reducer 32 broadened and the edge for being arranged at reducer upper end
A represents reducer 32 and isometrical section 33 of line of demarcation to the hand of spiral in isometrical section of consistent 33, Fig. 2 of width from the bottom to top.Reducing
Section 32 is with the reducer extruding side face 34 for being used to extrude corresponding boring mud and/or concrete, and isometrical section 33 is bored with extruding is used for
Isometrical section of extruding side face 35 of slag and/or concrete.The thickness of the upper end blade unit of reducer is gradually thickening from the bottom to top, etc.
The consistency of thickness of the upper end of footpath section, the thickness of remainder is gradually thickening from the bottom to top, and the change of blade unit thickness causes
Spacing between two blade units 31 spaced apart in the axial direction is tapered into from the bottom to top.
In drilling construction, auger stem rotary drilling under unit head driving, the drill bit of auger stem lower end can be got out
Boring mud, boring mud is delivered up along the upper surface of helical blade, when boring mud is delivered to the upper end of each blade unit, because phase therewith
There is reducer in adjacent blade unit, therefore boring mud can be fallen on the outside of the reducer extruding side face of reducer, with auger stem
Continuation rotation, reducer extruding side face squeezes boring mud outwardly, and most boring mud is extruded onto in annular ground layer at last, isometrical section of extruding
Side face, which is played, consolidates compacted effect.In addition, the thickness of the body position of blade unit gradually increases, so extruding to boring mud
Area is also gradually increasing, so as to play to the more preferable squeezing effect of boring mud, at the same also cause more boring muds carry out from
The heart moves and moved to the outside of helical blade, when the boring mud amount that annular ground layer can submerge reaches capacity, unnecessary brill
Slag can be outside tap.Reducer also has an effect to be exactly that, in auger stem percussion drilling, reducer extrudes side face and stake holes
There is sufficient space to receive the vertical impulsive force from unit head between hole wall, reduce vertical impulsive force of the boring mud to helical blade,
Operating efficiency is improved, reduces the kinetic energy loss to impactor, while ensureing the service life of helical blade.When drilling arrives bottom hole
Stop the rotation, the vertical impulsive force of impactor is transmitted downwards by auger stem, so as to tamp compacted bottom hole supporting course.Then may be used
To carry auger stem on concrete perfusion, one side concrete perfusion, one side into drilling using the endoporus of drilling rod, while making spiral
Drilling rod rotates, during being somebody's turn to do, and reducer extruding side face and isometrical section of extruding side face can be by the concrete extrusions not solidified also
Into annular ground layer, so annular ground layer and the boring mud and concrete that are extruded into annular ground layer constitute annular together
Compacted body is stake holes hole wall, after after concrete curing in stake holes, the concrete in stake holes and the concrete in annular ground layer
Overall structure is solidified into, bored concrete pile is ultimately formed, the bearing capacity of bored concrete pile is substantially increased, because of the molding mode of the bored concrete pile,
The bored concrete pile can be described as VDS bored concrete piles again, and alphabetical V is English word " Variety "（Change）First letter, alphabetical D
It is English word " Diameter "（Diameter）First letter, S is the first letter of English word " Stick " (bar),
That is VDS bored concrete piles mean the bored concrete pile processed using the drilling rod of diameter change.Broadened on the middle body of rod by narrow
Helical blade form the circular trace changed from small to big with the rotation of the middle body of rod, blade is by thin to changing helical pitch thicker than crossing
Become, boring mud and concrete form variable flow-disturbing movement locus in helical pitch and squeeze into borehole wall beneficial to reinforcement material.Work as respective layer
Annular compacted body to certain limit when, boring mud is delivered up and reinforced to the less soft stratum of opposite side limiter, if
The absorbability on stratum is that can squeeze into more boring mud in stratum more by force, then full soil compaction drilling is realized, if the amount of boring mud surpasses
The absorbability on stratum is crossed, unnecessary boring mud will be transported to earth's surface, realize that half soil compaction is crept into.The more existing bored concrete pile of the pile-type
Bearing capacity can be improved, boring mud discharge is reduced, the squeezed drilling compacting bottom hole of construction is once completed, full soil compaction drilling can be achieved, partly squeezes
Earth boring auger such as enters at a variety of Construction Modes, and simple for process, reliable in quality, energy-conserving and environment-protective realize economic, quick, energy-conserving and environment-protective
Integration objective.
In the other embodiments of this rig：The actuating unit of rig can also be only have being capable of outputting rotary power
Unit head；The number of blade unit can carry out selection as needed, between adjacent blade unit can have necessarily
Every, also simultaneously the blade unit of not all is required for reducer certainly, such as the blade unit at interval has reducer, or
Person has optional position of the blade unit in whole helical blade of reducer；The blade unit of reducer can also all by
Under supreme thickness it is gradually thickening；Isometrical section of blade unit can also be all gradually thickening from the bottom to top；Certainly also may be used for isometrical section
Not set；The auger stem can also be only used in boring procedure, or is only used in slip casting drilling process, when auger stem only
During in boring procedure, the middle body of rod can also be solid construction.
The embodiment 2 of rig is as shown in Figure 4：As different from Example 1, the middle body of rod is ladder to the embodiment 2 of rig
Axle construction, the middle body of rod of multidiameter structure includes big footpath section 21 and is arranged at the path section 22 of big footpath section lower end, helical blade 3
It is arranged at 22 in path section, the external diameter of big footpath section is consistent with isometrical section of blade unit of external diameter.
The implementation of auger stem is for example shown in Fig. 1 ~ 4：The concrete structure of auger stem and institute in above-mentioned each rig embodiment
The auger stem stated is identical, will not be described in detail herein.
The embodiment 1 of VDS bored concrete piles is as shown in Figure 5：This VDS bored concrete piles are that the VDS described in above-mentioned rig embodiment is filled
Stake is noted, the VDS bored concrete piles include stake holes and the concrete-pile bar 11 being placed in stake holes, and the hole wall of stake holes with concrete-pile bar by connecing
Tactile annular compacted body 10 is constituted, and Fig. 5 middle terms 9 represent the influence body of annular compacted body periphery, and annular compacted body 10 includes annular
Have in ground layer, annular ground layer and submerged for the reducer extruding side face extruding by blade unit in the annular ground layer
Boring mud and concrete.The thickness that the compacted body of annular corresponds to soft formation 7 is more than the thickness that annular compacted body corresponds to hard formation 5
Degree, figure middle term 8 represents the general stratum in top, and item 6 represents the general stratum in bottom, the hardness on general stratum between hard formation with it is soft
Between layer.The forming process of the VDS bored concrete piles is already described in above-mentioned rig embodiment, will not be described in detail herein, the table of figure middle term 4
Show the bottom hole compacting body being compacted due to impact because soft formation can squeeze into more boring muds and concrete, therefore with it is soft
The thickness of the corresponding annular compacted body in stratum will be thicker than the thickness of annular compacted body corresponding with hard formation.Of the present utility model
In other embodiments, if auger stem after drilling if propose drilling, then Reperfu- sion concrete, or brill is carried in grouting
When, auger stem is not rotated, and boring mud will have only been squeezed into annular ground layer；If auger stem is made when tank will carry brill
With, then concrete will have only been squeezed into annular ground layer.
The embodiment 2 of VDS bored concrete piles is as shown in Figure 6：The embodiment 2 of VDS bored concrete piles is different from VDS bored concrete piles embodiment 1
, the bottom of concrete-pile bar 11 extends to lithosphere 12, therefore not have the bottom hole that is compacted closely knit in the bottom hole of stake holes
Layer, the construction of the bored concrete pile can be completed by being only capable of the rig of outputting rotary power.
The implementation of stake holes is for example shown in Fig. 5 ~ 6：Described in the concrete structure of stake holes and above-mentioned each VDS bored concrete piles embodiment
Stake holes is identical, will not be described in detail herein.
Claims (10)
1. auger stem, including the middle body of rod and the helical blade for being arranged at intermediate bar external week, it is characterised in that：Helical blade
It is made up of at least two blade units being sequentially arranged along the hand of spiral of helical blade, wherein at least one blade unit has
Along the hand of spiral, width is by the narrow reducer broadened from the bottom to top, and reducer, which has, to be used to extrude corresponding boring mud and/or concrete
Reducer extruding side face.
2. auger stem according to claim 1, it is characterised in that：The thickness of the part or all of blade unit of reducer
Gradually the thickening spacing caused between two blade units spaced apart in the axial direction is tapered into from the bottom to top from the bottom to top.
3. auger stem according to claim 1 or 2, it is characterised in that：Blade unit also includes being in reducer upper end
Along the hand of spiral consistent isometrical section of width from the bottom to top, isometrical section has and is used to extruding the boring mud and/or concrete
Isometrical section of extruding side face, the thickness of isometrical section of part or all of blade unit is gradually thickening from the bottom to top.
4. rig, including actuating unit and the auger stem that is driven by actuating unit, auger stem includes the middle body of rod and setting
In the helical blade in intermediate bar external week, it is characterised in that：Helical blade is suitable along the hand of spiral of helical blade by least two
The blade unit of secondary setting is constituted, and wherein at least one blade unit has along the hand of spiral that width is broadened by narrow from the bottom to top
Reducer, reducer has the reducer extruding side face for being used to extrude corresponding boring mud and/or concrete.
5. rig according to claim 4, it is characterised in that：The thickness of the part or all of blade unit of reducer is under
The supreme gradually thickening spacing caused between two blade units spaced apart in the axial direction is tapered into from the bottom to top.
6. the rig according to claim 4 or 5, it is characterised in that：Blade unit also includes the edge in reducer upper end
The hand of spiral consistent isometrical section of width from the bottom to top, isometrical section has and is used to extruding the isometrical of the boring mud and/or concrete
Section extruding side face, the thickness of isometrical section of part or all of blade unit is gradually thickening from the bottom to top.
7. the VDS bored concrete piles being molded as the auger stem described in claim 1, including stake holes and the concrete-pile that is placed in stake holes
Bar, it is characterised in that：The hole wall of stake holes is made up of the annular compacted body contacted with the concrete-pile bar, and annular compacted body includes
Have in annular ground layer, annular ground layer and submerge the annular ground for the reducer extruding side face extruding by blade unit
Boring mud and/or concrete in layer.
8. VDS bored concrete piles according to claim 7, it is characterised in that：The thickness that the compacted body of annular corresponds to soft formation is big
Correspond to the thickness of hard formation in annular compacted body.
9. the stake holes being molded as the auger stem described in claim 1, it is characterised in that：The hole wall of stake holes is by annular compacted body structure
Into annular compacted body includes in annular ground layer, annular ground layer having for by the reducer extruding side face extruding of blade unit
And the boring mud and/or concrete submerged in the annular ground layer.
10. stake holes according to claim 9, it is characterised in that：The thickness that the compacted body of annular corresponds to soft formation is more than ring
The compacted body of shape corresponds to the thickness of hard formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621365196.5U CN206346718U (en) | 2016-12-13 | 2016-12-13 | A kind of auger stem, rig and the stake holes being molded by auger stem and VDS bored concrete piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621365196.5U CN206346718U (en) | 2016-12-13 | 2016-12-13 | A kind of auger stem, rig and the stake holes being molded by auger stem and VDS bored concrete piles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206346718U true CN206346718U (en) | 2017-07-21 |
Family
ID=59319027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621365196.5U Withdrawn - After Issue CN206346718U (en) | 2016-12-13 | 2016-12-13 | A kind of auger stem, rig and the stake holes being molded by auger stem and VDS bored concrete piles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206346718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481289A (en) * | 2016-12-13 | 2017-03-08 | 邵金安 | Auger stem, rig and the stake holes being molded by auger stem and VDS bored concrete pile |
| CN110892114A (en) * | 2017-09-12 | 2020-03-17 | 专利基金会私人有限公司 | Pile and its making method |
| CN115288121A (en) * | 2022-08-04 | 2022-11-04 | 李健 | Rotary compaction type variable diameter pile construction process |
-
2016
- 2016-12-13 CN CN201621365196.5U patent/CN206346718U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481289A (en) * | 2016-12-13 | 2017-03-08 | 邵金安 | Auger stem, rig and the stake holes being molded by auger stem and VDS bored concrete pile |
| CN110892114A (en) * | 2017-09-12 | 2020-03-17 | 专利基金会私人有限公司 | Pile and its making method |
| CN110892114B (en) * | 2017-09-12 | 2022-09-30 | 专利基金会私人有限公司 | Pile and its making method |
| CN115288121A (en) * | 2022-08-04 | 2022-11-04 | 李健 | Rotary compaction type variable diameter pile construction process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170721 Effective date of abandoning: 20181207 |