CN201671098U - Rotary spray mixing stiffened pile forming tool - Google Patents
Rotary spray mixing stiffened pile forming tool Download PDFInfo
- Publication number
- CN201671098U CN201671098U CN 201020199722 CN201020199722U CN201671098U CN 201671098 U CN201671098 U CN 201671098U CN 201020199722 CN201020199722 CN 201020199722 CN 201020199722 U CN201020199722 U CN 201020199722U CN 201671098 U CN201671098 U CN 201671098U
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- drill bit
- churning
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Abstract
A rotary spray mixing stiffened pile forming tool comprises a hollow drill rod, a first drill bit or a second drill bit, wherein the first drill bit or the second drill bit is connected with the drill rod, the first drill bit is a rotary spray mixing multi-wing drill bit for drilling and pile forming, and the second drill bit is a rotary spray stiffened drill bit for taking in a lower anchor bar and forming piles. The rotary spray mixing stiffened pile forming tool adopts a step construction mode, the drill bit can be recycled in construction process to save tools and project, and the rotary spray mixing stiffened pile forming tool not only can be used for construction in a harder soil layer, but also can be used for construction in a soft soil layer, and is fine in constructional effect.
Description
Technical field
The utility model relates to technical field of civil engineering, particularly relates to a kind of rotary jet stirring reinforcement pile instrument that soil, reinforcing, slope retaining and pattern foundation pit supporting structure are used that keeps off.
Background technology
Existing traditional soil bolt construction comprises and holing, and inserts dowel, carries out repeatedly slip casting, and technology is comparatively complicated.And for the bigger loose soft soil of water content, traditional armature boring occur collapsing hole and can't hole-forming phenomenon causes dowel to insert.When higher ground water pressure, boring can cause sandblast water spray etc. to cause the surface settlement accident of subsiding.For preventing the hole of collapsing, adopt sleeve pipe to creep into, under the protection of sleeve pipe, insert dowel, carry out the technology of repeatedly slip casting and construct, but this kind technology is complicated more.
For preventing the hole of collapsing, the employing drilling rod front end that also has is provided with drill bit, and the drill bit rear is provided with the extension gusset, hangs the mode of gusset connection dowel and constructs.But after adopting this kind mode to construct, the drill bit of drilling rod front end can't be extracted, and need stay in the soil body, causes the waste of instrument and material, and in addition, this method is difficult to avoid to anti-sandblast under the hydraulic pressure under the highland and water spray.
The utility model content
Technical problem to be solved in the utility model is, overcome the technical problem and the technological deficiency that exist in the prior art, a kind of rotary jet stirring reinforcement pile instrument is provided, use this instrument can make the diameter of pile increase, change, the drill bit that can will be used to hole reclaims simultaneously, save the consumption of instrument, saved cost.
In order to address the above problem the technical solution of the utility model is such:
Rotary jet stirring reinforcement pile instrument, it is characterized in that, comprise a hollow drilling rod, first drill bit that is connected with drilling rod or second drill bit, first drill bit is to be used to hole and the rotary jet stirring formula multiple wing drill bit of pile, and second drill bit is the rotary ejection type reinforcement drill bit that is used to bring into dowel and pile.
The method of rotary jet stirring reinforcement pile is: the first step adopts the drill bit of multiple wing, forms pile body (can be level, vertical and stake that tilt) by rotary drilling, churning, stirring.Second step, utilize churning reinforcement drill bit, creep into by churning, dowel along established pile body center position, is joined dowel in the pile body.In the process of reinforcement, carry out churning in different positions, with quality that improves pile and the diameter that enlarges stake end and other position.
Described rotary jet stirring formula multiple wing drill bit is two wings, three wings or four wing bit, and drill bit is tapered, and the front end of drill bit is equipped with one or more churning mouths, and rotary jet stirring formula multiple wing bit diameter is 60-600mm; Be detachable the connection between rotary jet stirring formula multiple wing drill bit and the drilling rod.
Described rotary ejection type reinforcement drill bit comprises a churning drill bit, and churning drill bit end is cylindrical or conical, and the churning mouth is installed on the churning drill bit, and the rear end of churning drill bit connects one and hangs gusset, hangs on the gusset and is connected with many dowels; Be detachable the connection between rotary ejection type reinforcement drill bit and the drilling rod.
In work progress, at first be that rotary jet stirring formula multiple wing drill bit is installed on the drilling rod with first drill bit, hole, rotary jet stirring reinforcement pile, arrive predetermined stake long after, the rollback drilling rod is taken first drill bit out of, disassembles first drill bit; Be that rotary ejection type reinforcement drill bit is installed on the drilling rod again with second drill bit, defeated being brought in the pile body that formed in the last step of extension gusset that will have dowel, and carry out rotary jet grouting, after dowel is brought into the precalculated position, make churning reinforcement drill bit and hang the gusset disengagement, the rollback drilling rod is extracted drilling rod, churning reinforcement drill bit out, extension gusset, dowel are then stayed in the formed pile body, treat that cement paste solidifies the back and forms cement-soil reinforcement pile body.In some weak soil layers, also can directly adopt churning reinforcement drill bit pile and reinforcement.
Beneficial effect, rotary jet stirring reinforcement pile instrument described in the utility model, substep is constructed, drill bit can reclaim in the work progress, the saving instrument is saved engineering, in both can having constructed in comparatively hard soil layer, also can construct in the soil layer (as mucky soil, quicksand and slity soil) of weakness, construction effect is good.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a rotary jet stirring formula multiple wing drill bit structure schematic diagram described in the utility model;
Fig. 2 is a rotary ejection type reinforcement drill bit structure schematic diagram described in the utility model;
Fig. 3 is an another kind of rotary ejection type reinforcement drill bit structure schematic diagram described in the utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1 and Fig. 2
Rotary jet stirring reinforcement pile instrument comprises a hollow drilling rod 3, and drilling rod 3 is by the rig driven rotary, and can be by slurries such as hollow channel transporting water mud.Drilling rod 3 front ends connect first drill bit or second drill bit, and first drill bit is that rotary jet stirring formula multiple wing drill bit 1, the second drill bit that is used for bored pile is the rotary ejection type reinforcement drill bit 2 that is used to insert dowel and pile.
When needs are holed and during rotary jet stirring reinforcement pile, drilling rod 3 is connected with rotary jet stirring formula multiple wing drill bit 1, on request direction bored pile in soil layer, drilling rod 3 is dismountable being threaded with the connected mode of rotary jet stirring formula multiple wing drill bit 1; After boring and rotary jet stirring reinforcement pile finish, connect rotary ejection type reinforcement drill bit 2 on drilling rod 3, connected mode is dismountable being threaded, in the reinforcement process when being hampered power, utilizing rotary ejection type reinforcement drill bit to carry out churning creeps into, after the dowel setting was put in place, rotary ejection type reinforcement drill bit 2 broke away from drilling rod 3 rollbacks with extension gusset and dowel, churning in the back off procedure, to improve the quality and the diameter of pile, behind the extraction pile body, drilling rod 3 breaks away from rotary ejection type reinforcement drill bit 2.
Further, described rotary jet stirring formula multiple wing drill bit 1 is three-wing bit or four wing bit, specifically can select the three wings or four wings that more multiple wing drill bit is set according to actual soil layer situation, the front end of drill bit is for stirring drill bit 11, stir one or more churning mouths 12 are installed on the drill bit 11, can be used for spraying slurries around chisel edge reaches, corresponding churning mouth 12 is communicated with drilling rod 3 inner hollow.Rotary jet stirring formula multiple wing drill bit 1 diameter is 60-600mm, is divided into a plurality of specifications such as Φ 120mm, Φ 180mm, Φ 220mm, Φ 300mm, Φ 500mm generally speaking; Be detachable the connection between rotary jet stirring formula multiple wing drill bit 1 and the drilling rod 3, be threaded as dismountable.After bored pile finished, rotary jet stirring formula multiple wing drill bit 1 can disassemble from drilling rod 3, so that other drill bit is installed.
And rotary ejection type reinforcement drill bit 2, comprise a churning drill bit 21, have slurries churning mouth 22 on the cyclone nozzle 21, slurries churning mouth 22 can be used for to chisel edge and spray slurries all around, the rear end of churning drill bit 21 connects one and hangs gusset 23, hangs on the gusset 23 and is connected with many dowels 24; Be detachable the connection between rotary ejection type reinforcement drill bit 2 and the drilling rod 3, be threaded as dismountable.
Further referring to Fig. 2, the end of the churning drill bit 21 of rotary ejection type reinforcement drill bit 2 is taper, has slurries churning mouth 22 on the cyclone nozzle 21, and a plurality of nozzles 22 is distributed on the end face of taper and the neck after the taper.
Further referring to Fig. 3, the end of the churning drill bit 21 of rotary ejection type reinforcement drill bit 2 is a truncated cone-shaped, has slurries churning mouth 22 on the cyclone nozzle 21, and a plurality of nozzles 22 is distributed on the end face of round platform and the neck behind the round platform end face.
In work progress, at first be that rotary jet stirring formula multiple wing drill bit 1 is installed on the drilling rod 3 with first drill bit, to hole and rotary jet stirring reinforcement pile, after boring arrived certain depth, rollback drilling rod 3 disassembled first drill bit after first drill bit is taken out of; Be that rotary ejection type reinforcement drill bit 2 is installed on the drilling rod 3 again with second drill bit, the extension gusset 23 that is connected with dowel 24 is transported in the pile body in the last step, and carry out churning and creep into, after dowel being joined the precalculated position of pile body, second drill bit 2 breaks away from extension gusset 23, second drill bit rollback and the rotary jet grouting, the space that drilling rod 3 and drill bit 2 occupy is annotated in fact, hang gusset 23 and 24 of dowels and stay in the pile body, treat that slurries solidify the back and form soil anchor.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the manual just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. rotary jet stirring reinforcement pile instrument, it is characterized in that, comprise a hollow drilling rod, first drill bit that is connected with drilling rod or second drill bit, first drill bit is to be used to hole and the rotary jet stirring formula multiple wing drill bit of pile, and second drill bit is the rotary ejection type reinforcement drill bit that is used to bring into dowel and pile.
2. rotary jet stirring reinforcement pile instrument according to claim 1, it is characterized in that described rotary jet stirring formula multiple wing drill bit is two wings, three wings or four wing bit, drill bit is tapered, the front end of drill bit is equipped with the churning mouth, and rotary jet stirring formula multiple wing bit diameter is 60-600mm; Be detachable the connection between rotary jet stirring formula multiple wing drill bit and the drilling rod.
3. rotary jet stirring reinforcement pile instrument according to claim 1, it is characterized in that, described rotary ejection type reinforcement drill bit, comprise a churning drill bit, churning drill bit end is cylindrical or conical, the churning mouth is installed on the churning drill bit, and the rear end of churning drill bit connects one and hangs gusset, hangs on the gusset and is connected with many dowels; Be detachable the connection between rotary ejection type reinforcement drill bit and the drilling rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020199722 CN201671098U (en) | 2010-05-20 | 2010-05-20 | Rotary spray mixing stiffened pile forming tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020199722 CN201671098U (en) | 2010-05-20 | 2010-05-20 | Rotary spray mixing stiffened pile forming tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671098U true CN201671098U (en) | 2010-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020199722 Expired - Lifetime CN201671098U (en) | 2010-05-20 | 2010-05-20 | Rotary spray mixing stiffened pile forming tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671098U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397633A (en) * | 2013-07-26 | 2013-11-20 | 张继红 | Self-drilling RCA (recycling composite anchor) rod and construction method thereof |
| CN104314076A (en) * | 2014-10-13 | 2015-01-28 | 安徽湖滨建设集团有限公司 | Recycled type prestressed anchor cable structure for soft soil foundation and construction method |
| CN106812473A (en) * | 2017-02-10 | 2017-06-09 | 上海强劲地基工程股份有限公司 | Churning drilling tool with helical blade and pressure injection displacement stiffening pile anchor construction method |
-
2010
- 2010-05-20 CN CN 201020199722 patent/CN201671098U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397633A (en) * | 2013-07-26 | 2013-11-20 | 张继红 | Self-drilling RCA (recycling composite anchor) rod and construction method thereof |
| CN104314076A (en) * | 2014-10-13 | 2015-01-28 | 安徽湖滨建设集团有限公司 | Recycled type prestressed anchor cable structure for soft soil foundation and construction method |
| CN104314076B (en) * | 2014-10-13 | 2016-03-30 | 安徽湖滨建设集团有限公司 | A kind of soft foundation recoverable prestressed anchor Cable Structure and construction method |
| CN106812473A (en) * | 2017-02-10 | 2017-06-09 | 上海强劲地基工程股份有限公司 | Churning drilling tool with helical blade and pressure injection displacement stiffening pile anchor construction method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |
|
| CX01 | Expiry of patent term |