CN221255478U - Device for stirring foundation treatment piles by matching rotary digging machine - Google Patents
Device for stirring foundation treatment piles by matching rotary digging machine Download PDFInfo
- Publication number
- CN221255478U CN221255478U CN202322883261.XU CN202322883261U CN221255478U CN 221255478 U CN221255478 U CN 221255478U CN 202322883261 U CN202322883261 U CN 202322883261U CN 221255478 U CN221255478 U CN 221255478U
- Authority
- CN
- China
- Prior art keywords
- soil
- rotary
- central
- stirring shaft
- stirring
- 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.)
- Active
Links
- 238000003756 stirring Methods 0.000 title claims abstract description 124
- 239000002689 soil Substances 0.000 claims abstract description 44
- 239000002002 slurry Substances 0.000 claims abstract description 40
- 239000004568 cement Substances 0.000 claims abstract description 19
- 230000009471 action Effects 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The invention relates to a device for stirring foundation treatment piles by matching with a rotary digging machine, which comprises the rotary digging machine, wherein the lower end of the rotary digging machine is provided with a central stirring shaft inserted into a soil environment, a slurry inlet pipe for injecting cement slurry is connected in the central stirring shaft, the end part of the central stirring shaft inserted into the soil is provided with a drill bit, the lower end of the rotary digging machine is provided with a stirring device corresponding to the central stirring shaft, the stirring device and the central rotating shaft are connected through a gear box and jointly rotate, the stirring device uniformly stirs the soil, and the slurry inlet pipe injects the cement slurry into the stirring device and stirs the cement slurry along with the soil under the action of the stirring device. The side wall rotary knife is driven by the central stirring shaft to stir the outside soil, the central stirring shaft rotates to stir the inner rotary knife which rotates in the opposite direction, the two groups of rotary knives which rotate in the opposite direction enable the soil to be stirred more uniformly, and the two groups of rotary knives which rotate in the opposite direction generate opposite rotating force at the common part of the rotary knives, so that the stirring is more uniform.
Description
Technical Field
The invention relates to the technical field of building construction equipment, in particular to a device for stirring foundation treatment piles by matching with a rotary digging machine.
Background
Rotary drilling piles are generally of the pile type constructed by rotary drilling rigs. The rotary pile is a pile foundation construction process which is popularized and used only in recent years in China, and the pile foundation construction process is advanced. In the past, pile high-pressure jet grouting piles, triaxial pile engagement piles, construction and water leakage can occur after excavation. In the pile foundation construction process, drilling is started in an all-steel casing by a rotary excavator, and slurry needs to be injected into soil to improve the foundation along with the increase of the hole depth in the drilling process. The existing natural slurry is produced by utilizing the stirring action of a drill bit on soil in the drilling process, mud skin is formed on the surface of a hole wall in the circulating process by the slurry, and the mud skin and the dead weight of the mud play a role in protecting the hole wall so as to prevent the hole wall from collapsing. In the construction process, the specific gravity of the slurry is usually required to be regulated according to actual conditions, and most of the slurry is regulated by adding clear water into holes, so that the slurry quality is poor due to more impurities in the holes, the drilling and the stabilization of the hole wall are not facilitated, meanwhile, the improvement effects of different parts are different due to uneven stirring of only the rotary cement slurry of a drill bit in a soft foundation, and the final construction is influenced.
Disclosure of Invention
The invention aims to solve the technical problems that cement slurry is injected without stirring in the foundation treatment and reinforcement process of the existing rotary digging machine, so that the improvement effect is poor; or cement paste can not be stirred uniformly in the soft foundation, and the effect is affected. Aiming at the defects in the prior art, the device for stirring the foundation treatment piles by matching with the rotary digging machine is provided.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a device that cooperation dig machine soon and carry out foundation treatment stake stirring, dig the machine soon including the rotation, dig the quick-witted lower extreme soon and be provided with the center (mixing) shaft that inserts soil environment, the center (mixing) shaft in-connection has the thick liquid pipe that advances of injection cement paste, the tip that the center (mixing) shaft inserted soil foundation is provided with the drill bit, dig the quick-witted lower extreme soon and be provided with agitating unit corresponding the center (mixing) shaft, agitating unit passes through the gear box with the central rotation axis and is connected and jointly rotates, agitating unit stirs soil evenly, advance the thick liquid pipe with cement paste injection agitating unit in and stir with soil foundation under agitating unit's effect in order to improve soil foundation.
Preferably, the stirring device comprises two sets of rotating blades rotating in opposite directions, and the soil foundation is stirred by the rotating blades rotating in opposite directions to improve the foundation.
Preferably, the two sets of rotary knives comprise inner rotary knives connected with the outer side of the central stirring shaft, the inner rotary knives rotate on the central stirring shaft to stir soil around the central stirring shaft, and the two sets of rotary knives further comprise side wall rotary knives arranged on the side wall of the stirring device, and the side wall rotary knives and the inner rotary knives stir the soil on the side wall of the stirring device in opposite directions.
Preferably, the inner rotary knife and the central stirring shaft rotate in opposite directions, and the side wall rotary knife and the central stirring shaft rotate in the same direction so as to realize that the two groups of rotary knives rotate in opposite directions for soil improvement.
Preferably, the inner rotary cutter rotates synchronously with the central stirring shaft and rotates in the opposite direction with the central stirring shaft under the blocking action of the foundation.
Preferably, the inner rotary knife and the side wall rotary knife are provided with a plurality of groups, the inner rotary knife is staggered in the vertical direction of the central stirring shaft, the side wall rotary knife is staggered in the vertical direction of the side part of the stirring device, each inner rotary knife and the side wall rotary knife correspondingly rotate,
Preferably, the inner rotary cutter is provided with a slurry outlet, the slurry outlet is connected with a slurry inlet pipe, and cement slurry entering the slurry inlet pipe enters soil through the slurry outlet for stirring.
Preferably, the end part of the central stirring shaft is also provided with a drill bit, and the lower end of the stirring device is provided with a plurality of groups of sand breaking cutters corresponding to the drill bit.
Preferably, the sand breaking knife is arranged obliquely, and the end part of the sand breaking knife is arranged towards the movement direction of the drill bit.
The invention has the beneficial effects that: the side wall rotary knives are driven by the central stirring shaft to stir outside soil, and the central stirring shaft rotates to stir the inner rotary knives which rotate in opposite directions, so that the soil is stirred more uniformly by the two groups of rotary knives which rotate in opposite directions, and meanwhile, the two groups of rotary knives which rotate in opposite directions generate opposite rotating force at the common part of the rotary knives, so that the stirring at the position is more sufficient. And cement paste is conveniently injected into the soil through the internal rotary cutter and stirred with the soil to improve the foundation. The drill bit at the end part of the central stirring shaft and the sand breaking knife are matched, so that the soil at the lower end is easier to loosen and stir for improvement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained by those skilled in the art without inventive effort:
FIG. 1 is a schematic cross-sectional view of a stirring device according to a preferred embodiment of the present invention;
Fig. 2 is a flow chart of a stirring method of the stirring device matched with the rotary excavator according to the preferred embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
The invention relates to a device for stirring foundation treatment piles by matching with a rotary digging machine, which is a preferred embodiment; as shown in fig. 1, the cement slurry stirring device comprises a connector 1 fixed above a rotary digging machine 2, wherein the lower end of the rotary digging machine is connected with a central stirring shaft 3, the lower end of the central stirring shaft penetrates into a soil foundation to rotate, a slurry inlet pipe 4 is arranged in the central stirring shaft, the slurry inlet pipe is connected into the geology to be stirred through the slurry inlet pipe after being connected with cement slurry from the upper part of the connector, a stirring device 9 is connected to the outer side of the central stirring shaft 3, the stirring device rotates along with the central stirring shaft and stirs the soil, an outlet of the slurry inlet pipe 3 is connected with the stirring device, and the stirring device injects cement slurry into the stirred geology and stirs along with the soil during stirring so as to improve the geology.
Specifically, as shown in fig. 1, the stirring device 9 includes a plurality of sets of inner rotary cutters 5 disposed outside the central stirring shaft, the inner rotary cutters 5 rotate along with the central stirring shaft, and when the central stirring shaft rotates clockwise, the inner rotary cutters 5 rotate anticlockwise under the blocking of geological environment, so that the soft foundations such as quicksand, silt, earth filling, water stopping and the like around the central stirring shaft are uniformly stirred, and cement paste is discharged into the stirring device through the slurry outlet holes formed in the inner rotary cutters. When the central stirring shaft rotates anticlockwise, the inner rotary cutter rotates clockwise under the blocking of soil, namely the inner rotary cutter always keeps rotating in the opposite direction of the central stirring shaft.
Further, as shown in fig. 1, in order to further increase the stirring effect of the central stirring shaft, multiple groups of internal rotary cutters are distributed in a staggered manner on the outer wall of the central stirring shaft in the vertical direction, so that the stirring effect of each direction is improved.
Further, as shown in fig. 1, the inner wall of the stirring device 9 is provided with a plurality of sets of side wall rotating blades 6 corresponding to the inner rotating blades 5, the shell of the stirring device rotates clockwise or anticlockwise along with the central stirring shaft, and the plurality of sets of side wall rotating blades are distributed in a staggered manner in the side wall resin direction so as to further improve the stirring effect, and each inner rotating blade is arranged corresponding to the side wall rotating blade, so that the soil at the position is stirred more fully under the action of the rotation of the rotating blades in two opposite directions.
Further, as shown in fig. 1, the center stirring shaft can move downwards due to the gravity of the rotary excavator, in order to further facilitate the downward movement of the rotary excavator, the end part of the center stirring shaft is provided with a drill bit 30, the end part of the stirring device is provided with two groups of sand breaking cutters 7 corresponding to the drill bit, when the drill bit moves downwards, the sand breaking cutters loosen soil in advance, and then the foundation is uniformly stirred by being matched with cement slurry under the action of the side wall rotating cutters and the inner rotating cutters.
Further, as shown in fig. 1, the stirring device 9 and the central stirring shaft 3 are connected and driven through the gear box 8, that is, the rotating knife 5 and the central stirring shaft 3 are rotated in the opposite direction through the gear box to stir the soil uniformly, and meanwhile, the gear box enables the side wall rotating knife 6 and the central stirring shaft to keep the same rotation direction to stir the soil uniformly. The inner rotary knife and the side wall rotary knife are adopted to keep opposite directions to rotate, so that the soil foundation is stirred more uniformly.
When the device is used, the connector 1 controls the central stirring shaft 3 to rotate, the inner rotary cutter and the central stirring shaft rotate in opposite directions under the action of the gear box 8, the side wall rotary cutter and the central stirring shaft rotate in the same direction, so that soil entering the stirring device is uniformly stirred, cement slurry is injected through the slurry inlet pipe 4 and enters the soil through the slurry outlet hole 50 while the central stirring shaft rotates, and the soil is improved under the action of the side wall rotary cutter and the inner rotary cutter. The gravity of the rotary digging machine and the cooperation drill bit 30 enable the rotary digging machine and the stirring device to move downwards, meanwhile, the sand breaking knife at the end part of the stirring device, corresponding to the drill bit, loosens the foundation in advance, and the sand breaking knife is matched with cement slurry to improve the soft foundation through the side wall rotary knife and the inner rotary knife until the improved set depth is reached, so that the operation can be notified.
It will be understood that the application has been described in terms of several embodiments, and that various changes in the features and embodiments may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the application. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the application without departing from the essential scope thereof. Therefore, it is intended that the application not be limited to the particular embodiment disclosed, but that the application will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. The utility model provides a cooperation dig machine soon and carry out device that foundation treatment stake stirred, digs the machine soon including, dig the machine lower extreme soon and be provided with the center (mixing) shaft that inserts soil environment, center (mixing) shaft interconnect has the thick liquid pipe that advances of injection grout, the tip that center (mixing) shaft inserted soil is provided with the drill bit, its characterized in that: the rotary digging machine is characterized in that a stirring device is arranged at the lower end of the rotary digging machine, corresponding to the central stirring shaft, and is connected with the central rotating shaft through a gear box and rotates together, the stirring device stirs soil uniformly, and the slurry inlet pipe injects cement slurry into the stirring device and stirs along with the soil under the action of the stirring device so as to improve a soft foundation.
2. The apparatus according to claim 1, wherein: the stirring device comprises two groups of rotating blades rotating in opposite directions, and soil is stirred by the rotating blades rotating in opposite directions to improve the foundation.
3. The apparatus according to claim 2, wherein: the two groups of rotary knives comprise inner rotary knives connected with the outer side of the central stirring shaft, the inner rotary knives rotate on the central stirring shaft to stir soil around the central stirring shaft, and the side wall rotary knives are arranged on the side wall of the stirring device and stir the soil on the side wall of the stirring device along the opposite direction.
4. A device according to claim 3, characterized in that: the inner rotary cutters and the central stirring shaft rotate in opposite directions, and the side wall rotary cutters and the central stirring shaft rotate in the same direction so as to realize that the two groups of rotary cutters rotate in opposite directions to improve the soil foundation.
5. The apparatus according to claim 4, wherein: the inner rotary cutter rotates synchronously with the central stirring shaft and rotates in the opposite direction with the central stirring shaft under the blocking action of the foundation.
6. A device according to claim 3, characterized in that: the inner rotating cutters and the side wall rotating cutters are arranged in a plurality of groups, the inner rotating cutters are distributed in a staggered mode in the vertical direction of the central stirring shaft, the side wall rotating cutters are distributed in a staggered mode in the vertical direction of the side part of the stirring device, and each inner rotating cutter and the side wall rotating cutter correspondingly rotate.
7. The apparatus according to any one of claims 1-6, wherein: the inner rotary cutter is provided with a slurry outlet, the slurry outlet is connected with a slurry inlet pipe, and cement slurry entering the slurry inlet pipe enters the soil foundation through the slurry outlet for stirring.
8. The apparatus according to claim 7, wherein: the end part of the central stirring shaft is also provided with a drill bit, and the lower end of the stirring device is provided with a plurality of groups of sand breaking cutters corresponding to the drill bit.
9. The apparatus according to claim 8, wherein: the sand breaking knife is obliquely arranged, and the end part of the sand breaking knife is arranged towards the movement direction of the drill bit.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221255478U true CN221255478U (en) | 2024-07-02 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201212147Y (en) | Combination drill tool for long screwy jet grouting and stirring pile | |
| CN106088064B (en) | A kind of construction method of the axle cement mixing pile drilling tool of hard stratum precrushing three | |
| CN201395793Y (en) | Long spiral high-pressure spraying mud injecting stirring pile-forming device | |
| KR101527723B1 (en) | Complex Ground Improving Devive and Ground Improving Method Using The Same | |
| CN111455988A (en) | Construction method of high-pressure jet grouting pile | |
| KR101187582B1 (en) | Auger device equiped with excavating rod and casing rod having same turning direction and different speed | |
| CN221255478U (en) | Device for stirring foundation treatment piles by matching rotary digging machine | |
| CN107700508A (en) | A kind of shaped steel stirs the construction method of water spray soil curtain support pile | |
| CN117328434A (en) | Device and method for stirring foundation treatment piles by matching rotary digging machine | |
| CN111455976A (en) | Construction method of self-setting mortar impervious wall by grooving method | |
| KR102029424B1 (en) | Soil agitating device for weak ground | |
| CN205894066U (en) | Hard stratum is broken triaxial cement stirring stake drilling tool in advance | |
| JPH09296439A (en) | Soil improvement device | |
| KR100512095B1 (en) | Excavator bit using UCM method | |
| JPH0114380B2 (en) | ||
| KR20240016515A (en) | Deep cement mixing method (dcm) with pre cutting depth step based on the porosity of the target soil | |
| CN103939020A (en) | Anti-winding deep mixing pile drill bit | |
| CN112726568B (en) | Method for reinforcing silt sand layer | |
| CN221297842U (en) | High-pressure jet grouting pile spiral drill bit for hard stratum | |
| JP7442241B1 (en) | Earth removal cover for columnar ground improvement equipment and columnar ground improvement method | |
| KR0146450B1 (en) | Pipe insertion device of boring machine | |
| JP2836808B2 (en) | Drill stirrer for soil cement pile method | |
| CN206090569U (en) | Big moment of torsion spouts drilling cloth pile cluster spare of mixing pile construction device soon | |
| JPH1121872A (en) | Method and device for improving weak layer ground of lower part of stone bond layer | |
| JPH08144260A (en) | Soil improvement method by making use of both underground casing and jet and device therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |