CN220301401U - Rotary spraying curtain - Google Patents
Rotary spraying curtain Download PDFInfo
- Publication number
- CN220301401U CN220301401U CN202322125876.6U CN202322125876U CN220301401U CN 220301401 U CN220301401 U CN 220301401U CN 202322125876 U CN202322125876 U CN 202322125876U CN 220301401 U CN220301401 U CN 220301401U
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- China
- Prior art keywords
- jet grouting
- grouting pile
- stratum
- formation
- rotary
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- 238000005507 spraying Methods 0.000 title claims description 15
- 239000002689 soil Substances 0.000 claims description 23
- 230000015572 biosynthetic process Effects 0.000 claims description 21
- 239000004927 clay Substances 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 11
- 238000005553 drilling Methods 0.000 description 10
- 238000003756 stirring Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 239000004568 cement Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 3
- 239000011440 grout Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Abstract
The utility model relates to a spout curtain soon relates to the field of waterproof curtain, sets up in the stratum, and it includes the jet grouting pile main part, the jet grouting pile main part is provided with a plurality of along the horizontal direction, the jet grouting pile main part includes first jet grouting pile and second jet grouting pile, the second jet grouting pile is located the top of first jet grouting pile, and with the coaxial fixed connection that sets up of first jet grouting pile, the diameter of second jet grouting pile is greater than the diameter of first jet grouting pile. The diameter of the jet grouting pile can be increased, and the strength of the jet grouting pile can be enhanced, so that the possibility that the jet grouting pile is damaged in the pick and chisel process can be reduced.
Description
Technical Field
The application relates to the field of waterproof curtains, in particular to a rotary spraying curtain.
Background
In the construction method of the traditional deep foundation pit waterproof curtain, a jet grouting pile machine is adopted for construction, a drill bit with a nozzle is drilled to a designed depth by utilizing a drilling tool of a drilling machine, cement slurry with a certain water-cement ratio is pumped to the drill bit through a high-pressure pipe under the high-pressure action of a high-pressure pump, so that the injected high-pressure cement slurry is sprayed out through the nozzle to impact and cut surrounding soil; simultaneously, the drilling tool rotates at a certain speed and lifts, so that cement slurry forcedly stirs surrounding soil bodies to form cylindrical pile bodies. The grout is used for overcoming the formation resistance and penetrating into the surrounding formation gaps, and the strength of the formation is improved by means of the cement grout property and solidification of the formation.
When a foundation pit is supported by slope protection piles, the width of a fertilizer groove (the distance from the outer surface of the structure to the surface of the pile) is generally 0.8m-1.0m, so that the center point of the jet grouting pile is positioned in the range of the structural wall, and the pile body of the jet grouting pile is mostly overlapped with the structural wall.
If the structural wall is to be constructed, the jet grouting pile bodies in the overlapping range are required to be removed, the thickness of the pile bodies accounts for the majority of the thickness of the curtain, and the residual pile bodies are easily damaged in the pile body removing process due to the small thickness and low strength of the jet grouting pile in the overlapping range, so that a breach is formed in the whole curtain.
Disclosure of Invention
To enhance the strength of a jet grouting pile, the present application provides a jet grouting curtain.
The application provides a spouts curtain soon adopts following technical scheme:
the utility model provides a spout curtain soon, sets up in the stratum, including spouting the stake main part soon, spout the stake main part soon and be provided with a plurality of along the horizontal direction, spout the stake main part soon and include first spouting stake and second spouting stake soon, the second spouts the stake and is located the top of first spouting the stake soon, and with the coaxial fixed connection that sets up of first spouting the stake soon, the diameter of second spouts the stake soon is greater than the diameter of first spouting the stake soon.
Through adopting above-mentioned technical scheme, through setting up the diameter of second jet grouting stake and being greater than the diameter of first jet grouting stake for the intensity of second jet grouting stake is greater than the intensity of first jet grouting stake, through setting up the second jet grouting stake at the top of first jet grouting stake, can strengthen the intensity at jet grouting stake main part top, makes it difficult by damaging the fracture and leads to the breach in picking and chiseling the in-process.
Optionally, the stratum includes first stratum and second stratum, first jet grouting pile sets up in the first stratum, second jet grouting pile sets up in the second stratum, first stratum intussuseption is filled with first cohesive soil, second stratum intussuseption is filled with second cohesive soil, the looseness of second cohesive soil is greater than the looseness of first cohesive soil.
Through adopting above-mentioned technical scheme, through the looseness of adjusting the cohesive soil in the second stratum, when the drilling tool is spraying mud and promoting the in-process, can enlarge its stirring cylinder's diameter to can form the jet grouting stake in the diameter is greater than first stratum in the second stratum.
Optionally, the jet grouting pile body further includes a third jet grouting pile, the third jet grouting pile is located at the top of the second jet grouting pile and is fixedly connected with the second jet grouting pile in a coaxial mode, and the diameter of the third jet grouting pile is larger than that of the second jet grouting pile.
Through adopting above-mentioned technical scheme, through setting up the diameter of third jet grouting stake and being greater than the diameter of second jet grouting stake for the intensity of third jet grouting stake is greater than the intensity of second jet grouting stake, through setting up the third jet grouting stake at the top of second jet grouting stake, can further strengthen the intensity of jet grouting stake main part top, thereby further make it not damaged at the pick in-process.
Optionally, the stratum further comprises a third stratum, the third jet grouting pile is arranged in the third stratum, third clay is filled in the third stratum, and the looseness of the third clay is larger than that of the second clay.
Through adopting above-mentioned technical scheme, through the looseness of adjusting the cohesive soil in the third stratum, when the drilling tool is spraying mud and promoting the in-process, can make its diameter of stirring cylinder be greater than the diameter of stirring cylinder in the second stratum to can form the jet grouting stake in the diameter is greater than the second stratum in the third stratum.
Optionally, the jet grouting pile body further includes a fourth jet grouting pile, the fourth jet grouting pile is located at the top of the third jet grouting pile and is fixedly connected with the third jet grouting pile in a coaxial mode, and the diameter of the fourth jet grouting pile is larger than that of the third jet grouting pile.
Through adopting above-mentioned technical scheme, through setting up the diameter of fourth jet grouting pile and being greater than the diameter of third jet grouting pile for the intensity of fourth jet grouting pile is greater than the intensity of third jet grouting pile, through setting up the fourth jet grouting pile at the top of third jet grouting pile, can further strengthen the intensity of jet grouting pile main part top, thereby further make it not damaged in picking and chiseling the in-process.
Optionally, the stratum further comprises a fourth stratum, the fourth jet grouting pile is arranged in the fourth stratum, fourth clay is filled in the fourth stratum, and the loose degree of the fourth clay is larger than that of the third clay.
Through adopting above-mentioned technical scheme, through the looseness of adjusting the interior cohesive soil of fourth stratum, when the drilling tool is spraying mud and promoting the in-process, can make its diameter of stirring cylinder be greater than the diameter of stirring cylinder in the third stratum to can form the jet grouting stake in the diameter is greater than the third stratum in the fourth stratum.
Optionally, each three jet grouting pile bodies are in a group, a reinforcement cage is arranged between two adjacent groups of jet grouting pile bodies, and concrete is poured in the reinforcement cage.
By adopting the technical scheme, the strength of the rotary spraying curtain can be further enhanced; through establishing three jet grouting pile main part as a set of, the triaxial jet grouting pile machine of being convenient for is constructed to the jet grouting pile, has improved the efficiency of its construction.
Optionally, a plurality of groups of horizontal reinforcing ribs are uniformly arranged on the reinforcement cage along the vertical direction.
By adopting the technical scheme, the strength of the reinforcement cage can be enhanced, so that the strength of the rotary spraying curtain is further enhanced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the second jet grouting pile with the diameter larger than that of the first jet grouting pile is arranged at the top of the first jet grouting pile, so that the strength of the second jet grouting pile is larger than that of the first jet grouting pile, the strength of the top of the jet grouting pile main body is enhanced, and the jet grouting pile is prevented from being damaged and cracked in the chiseling process to cause a breach;
2. the strength of the third jet grouting pile is higher than that of the second jet grouting pile by arranging the third jet grouting pile with the diameter larger than that of the second jet grouting pile at the top of the second jet grouting pile, so that the strength of the top of the jet grouting pile main body is further enhanced;
3. the top of the third jet grouting pile is provided with the fourth jet grouting pile with the diameter larger than that of the third jet grouting pile, so that the strength of the fourth jet grouting pile is larger than that of the third jet grouting pile, and the strength of the top of the jet grouting pile main body is further enhanced.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
fig. 2 is a schematic cross-sectional view of a hidden jet grouting pile body and concrete according to an embodiment of the present application.
Reference numerals illustrate: 1. a jet grouting pile body; 11. a first jet grouting pile; 12. a second jet grouting pile; 13. a third jet grouting pile; 14. fourth jet grouting pile; 21. a first formation; 22. a second formation; 23. a third formation; 24. a fourth formation; 31. a first clay; 32. a second clay; 33. a third clay; 34. fourth clay; 4. a reinforcement cage; 41. reinforcing ribs; 5. and (3) concrete.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-2.
The embodiment of the application discloses a rotary spraying curtain. Referring to fig. 1, a jet grouting curtain is constructed in a stratum, and comprises a plurality of groups of jet grouting pile bodies 1 which are uniformly distributed along the horizontal direction, wherein the jet grouting pile bodies 1 are vertically arranged, the strength of the top of each jet grouting pile body is greater than that of the bottom of each jet grouting pile body, a reinforcement cage 4 for further reinforcing the jet grouting curtain is arranged between two adjacent groups of jet grouting pile bodies 1, and concrete 5 is poured in the reinforcement cages 4.
Referring to fig. 1 and 2, each set of jet grouting pile bodies 1 includes three jet grouting pile bodies 1 sequentially arranged in a horizontal direction, and reinforcement cages 4 and concrete 5 are distributed between two adjacent sets of jet grouting pile bodies 1 in a distribution direction of the jet grouting pile bodies 1, and the heights of the reinforcement cages and the concrete 5 are identical to those of the jet grouting pile bodies 1.
Referring to fig. 1 and 2, each of the jet grouting pile bodies 1 includes a first jet grouting pile 11, a second jet grouting pile 12, a third jet grouting pile 13 and a fourth jet grouting pile 14 which are vertically arranged, wherein the first jet grouting pile 11 is located at the bottom end of the jet grouting pile body 1, the second jet grouting pile 12 is located above the first jet grouting pile 11, the bottom of the second jet grouting pile 12 is fixedly connected with the top of the first jet grouting pile 11, and the second jet grouting pile 12 is coaxially arranged with the first jet grouting pile 11.
Referring to fig. 1 and 2, a third jet grouting pile 13 is located above the second jet grouting pile 12, the bottom of the third jet grouting pile 13 is fixedly connected with the top of the second jet grouting pile 12, and the third jet grouting pile 13 is also coaxially arranged with the first jet grouting pile 11; the fourth jet grouting pile 14 is located above the third jet grouting pile 13, the bottom of the fourth jet grouting pile 14 is fixedly connected with the top of the third jet grouting pile 13, and the fourth jet grouting pile 14 is also coaxially arranged with the first jet grouting pile 11, namely, the first jet grouting pile 11, the second jet grouting pile 12, the third jet grouting pile 13 and the fourth jet grouting pile 14 are sequentially arranged along the vertical upward direction, are fixedly connected with each other and are coaxially arranged.
During construction of the jet grouting pile body 1, as the jet grouting device is lifted, in the process of forming the second jet grouting pile 12, the third jet grouting pile 13 and the fourth jet grouting pile 14, the lifting speed of the jet grouting device is sequentially reduced, the jet grouting time in the same height is increased, and the stirring radius of the slurry sprayed at the corresponding height is increased, so that the first jet grouting pile 11, the second jet grouting pile 12, the third jet grouting pile 13 and the fourth jet grouting pile 14 are formed.
Referring to fig. 1 and 2, the strata include a first stratum 21, a second stratum 22, a third stratum 23 and a fourth stratum 24, wherein the first stratum 21 is filled with a first cohesive soil 31, the second stratum 22 is filled with a second cohesive soil 32, the third stratum 23 is filled with a third cohesive soil 33, the fourth stratum 24 is filled with a fourth cohesive soil 34, the second stratum 22 is positioned above the first stratum 21, the third stratum 23 is positioned above the second stratum 22, the fourth stratum 24 is positioned above the third stratum 23, the looseness of the fourth cohesive soil 34 is greater than the looseness of the third cohesive soil 33, the looseness of the third cohesive soil 33 is greater than the looseness of the second cohesive soil 32, and the looseness of the second cohesive soil 32 is greater than the looseness of the first cohesive soil 31.
Referring to fig. 1 and 2, a first jet grouting pile 11 is disposed in a first formation 21, a second jet grouting pile 12 is disposed in a second formation 22, a third jet grouting pile 13 is disposed in a third formation 23, and a fourth jet grouting pile 14 is disposed in a fourth formation 24.
By arranging the stratum with different looseness, in the construction process of the jet grouting pile main body 1, different stirring radiuses can be generated in the corresponding stratum even if the lifting speed of the spraying device is not changed, so that jet grouting piles with different diameters are formed; through changing the lifting speed of the injection device and setting stratum with different looseness, the corresponding stirring radius can be further increased, and therefore the strength of the jet grouting pile is enhanced.
Referring to fig. 1 and 2, a reinforcement cage 4 is arranged between two adjacent groups of jet grouting pile bodies 1, a plurality of groups of horizontal reinforcing ribs 41 are uniformly arranged on the reinforcement cage 4 along the vertical direction, and concrete 5 is poured in the reinforcement cage 4.
The implementation principle of the jet grouting curtain disclosed by the embodiment of the application is as follows: firstly, three drilling holes which are horizontally distributed are drilled on a stratum by using a drilling machine, then, three-axis jet grouting pile machines are used for construction in the three drilling holes, and the lifting speed of a guniting device is preset before construction, so that the lifting speed of the guniting device in a first stratum 21, a second stratum 22, a third stratum 23 and a fourth stratum 24 is sequentially slowed down, and the looseness of the corresponding stratum is matched to form a group of jet grouting pile bodies 1; continuing to drill a hole on one side of the formed set of jet grouting pile bodies 1 by using a drilling machine, placing a reinforcement cage 4 in the drilled hole, and then pouring concrete 5 in the hole; repeating the steps to form the complete rotary spraying curtain.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. The utility model provides a spout curtain soon, sets up in the formation, its characterized in that, including spout stake main part (1) soon, spout stake main part (1) soon and be provided with a plurality of along the horizontal direction, spout stake main part (1) soon and include first spout stake (11) and second spout stake (12), second spout stake (12) are located the top of first spout stake (11), and with first spout stake (11) coaxial setting fixed connection, the diameter of second spout stake (12) is greater than the diameter of first spout stake (11).
2. The rotary jetting curtain according to claim 1, characterized in that the stratum comprises a first stratum (21) and a second stratum (22), the first rotary jetting piles (11) are arranged in the first stratum (21), the second rotary jetting piles (12) are arranged in the second stratum (22), the first stratum (21) is filled with first cohesive soil (31), the second stratum (22) is filled with second cohesive soil (32), and the looseness of the second cohesive soil (32) is larger than that of the first cohesive soil (31).
3. A jet grouting curtain as claimed in claim 2, characterised in that the jet grouting pile body (1) further comprises a third jet grouting pile (13), the third jet grouting pile (13) being located at the top of the second jet grouting pile (12) and being fixedly connected coaxially with the second jet grouting pile (12), the diameter of the third jet grouting pile (13) being greater than the diameter of the second jet grouting pile (12).
4. A rotary jetting curtain according to claim 3, characterized in that the formation further comprises a third formation (23), the third rotary jetting piles (13) being arranged in the third formation (23), the third formation (23) being filled with a third clay (33), the third clay (33) having a loosening degree greater than that of the second clay (32).
5. The rotary jetting curtain as claimed in claim 4, wherein the rotary jetting tool body (1) further comprises a fourth rotary jetting tool (14), the fourth rotary jetting tool (14) is located at the top of the third rotary jetting tool (13) and is fixedly connected with the third rotary jetting tool (13) in a coaxial arrangement, and the diameter of the fourth rotary jetting tool (14) is larger than that of the third rotary jetting tool (13).
6. The rotary jetting curtain of claim 5, wherein the formation further comprises a fourth formation (24), the fourth rotary jetting tool (14) being disposed within the fourth formation (24), the fourth formation (24) being filled with a fourth clay (34), the fourth clay (34) having a bulk density greater than the bulk density of the third clay (33).
7. The rotary spraying curtain according to claim 6, wherein each three rotary spraying pile bodies (1) are in one group, a reinforcement cage (4) is arranged between two adjacent groups of rotary spraying pile bodies (1), and concrete (5) is poured in the reinforcement cage (4).
8. The rotary spraying curtain according to claim 7, wherein a plurality of groups of horizontal reinforcing ribs (41) are uniformly arranged on the reinforcement cage (4) along the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322125876.6U CN220301401U (en) | 2023-08-08 | 2023-08-08 | Rotary spraying curtain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322125876.6U CN220301401U (en) | 2023-08-08 | 2023-08-08 | Rotary spraying curtain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220301401U true CN220301401U (en) | 2024-01-05 |
Family
ID=89352322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322125876.6U Active CN220301401U (en) | 2023-08-08 | 2023-08-08 | Rotary spraying curtain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220301401U (en) |
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2023
- 2023-08-08 CN CN202322125876.6U patent/CN220301401U/en active Active
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