CN110820789A - Synchronous water injection humidifying device for lime-soil compaction pile - Google Patents
Synchronous water injection humidifying device for lime-soil compaction pile Download PDFInfo
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- CN110820789A CN110820789A CN201911148799.8A CN201911148799A CN110820789A CN 110820789 A CN110820789 A CN 110820789A CN 201911148799 A CN201911148799 A CN 201911148799A CN 110820789 A CN110820789 A CN 110820789A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 238000002347 injection Methods 0.000 title claims abstract description 62
- 239000007924 injection Substances 0.000 title claims abstract description 62
- 239000002689 soil Substances 0.000 title claims abstract description 44
- 238000005056 compaction Methods 0.000 title claims abstract description 26
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 15
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 10
- 238000004080 punching Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000010410 layer Substances 0.000 abstract description 5
- 239000002344 surface layer Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 238000002791 soaking Methods 0.000 description 3
- 229920001875 Ebonite Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/34—Foundations for sinking or earthquake territories
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/72—Pile shoes
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention belongs to the technical field of civil engineering foundation treatment equipment, and particularly relates to a synchronous water injection humidifying device for a lime-soil compaction pile, which solves the technical problem in the background technology. The water injection pile comprises a top pile pipe, a bottom pile tip and a plurality of standard pile pipes, wherein the top pile pipe, the standard pile pipe and the bottom pile tip are coaxially arranged from top to bottom and are sequentially connected, water injection pipes are respectively arranged on central shafts of the top pile pipe and the standard pile pipe, the bottom pile tip comprises a cylindrical upper part and an inverted cone-shaped tip, the central shaft of the bottom pile tip is provided with the water injection pipes, a plurality of water outlet holes are uniformly distributed on the side wall of the inverted cone-shaped tip along the circumferential direction, and the water outlet holes are communicated with the bottom end of the water injection pipe in the bottom pile tip. The invention can realize synchronous water injection in the process of punching, can not cause too little water injection and waste water resources, achieves the effect of uniformly humidifying the surface layer and the deep layer of the pile hole, can shorten the construction period and has good hole forming and compacting effects; the breakthrough of doubling the treatment depth is achieved.
Description
Technical Field
The invention relates to the technical field of foundation treatment equipment of civil engineering, in particular to a device for synchronously injecting water and humidifying lime-soil compaction piles.
Background
Collapsible loess is unsaturated, less dense soil with low compressibility and high strength under natural humidity, but is soaked in water to cause great collapse deformation under the influence of additional pressure or dead weight pressure. Therefore, the soil must be treated to be used as the foundation of the building.
The lime-soil compaction pile is an effective and convenient method for treating the collapsible loess foundation. The principle is that the lateral extrusion effect is used to compact the soil between piles, and then the pile holes are compacted by plain soil or lime soil layer by layer. The depth of treatment of the traditional lime soil compaction pile is generally 5-15 m, but the traditional lime soil compaction pile is a process with larger treatment depth in various treatment methods of collapsible loess. If the pile is formed in the loess with lower water content, the pore-forming is extremely difficult because the soil body is hard, the water content is lower, the maximum dry density is not easy to reach, and the compaction effect on the soil body is not obvious. At present, a pre-soaking method is adopted, water from the surface layer to the deep layer is often soaked unevenly, and the pore-forming compaction effect is poor.
However, the traditional pre-soaking method has large water consumption and long construction period, and generally, the time required for stabilizing the site from pre-soaking to sinking and for the water content of the soil to reach a certain requirement is at least about one year, so that the construction period is prolonged to a great extent, and the construction cost is improved. Can not meet the requirement of short construction period of the current large amount of engineering construction for the return on investment period.
Disclosure of Invention
The present invention is directed to solving the technical problems of the background art. Therefore, the invention provides a synchronous water injection humidifying device for an ash soil compaction pile.
The technical scheme adopted by the invention for solving the technical problems is as follows: a synchronous water injection humidifying device for an ash soil compaction pile comprises a top section pile pipe, a bottom section pile tip and a plurality of standard section pile pipes, wherein the top section pile pipe, the standard section pile pipes and the bottom section pile tip are coaxially arranged from top to bottom and are sequentially connected, water injection pipes are arranged on central shafts of the top section pile pipe and the standard section pile pipes, and the end parts of the water injection pipes at the top of the top section pile pipes extend to the outside; the bottom pile tip comprises a cylindrical upper part and an inverted cone-shaped tip, a water injection pipe is arranged on a central shaft of the bottom pile tip, a plurality of water outlet holes are uniformly distributed on the side wall of the inverted cone-shaped tip along the circumferential direction, and the water outlet holes are communicated with the bottom end of the water injection pipe in the bottom pile tip; when the top pile pipe is connected with the standard pile pipe, the bottom end of the water injection pipe in the top pile pipe is communicated with the top end of the water injection pipe in the standard pile pipe; and when the standard pile pipe is connected with the bottom pile tip, the bottom end of the water injection pipe in the standard pile pipe is communicated with the top end of the water injection pipe in the bottom pile tip.
In the actual operation, will top festival stake pipe, several standard festival stake pipes and bottom stake point are from last to lower assembled coupling in proper order, after assembling fairly with the quick-witted tube portion of traditional lime-soil compaction stake, the stake machine equipment takes one's place, top festival stake pipe, several standard festival stake pipes and the inside water injection pipe of bottom stake point are linked together, the outside water injection pipe of top festival stake pipe links to each other with outside water gauge, water pump, later examination water pressure testing, and the start is tried to be beaten, and the pore-forming is to the design stake depth while injecting water, examines the control water yield of punching at every turn according to the water gauge in the punching process. Wherein the water yield of each punching is controlled according to the process requirements.
Preferably, a concave part and a convex part which are matched with each other are formed between the top section pile pipe and the standard section pile pipe, between two adjacent upper and lower standard section pile pipes and between the standard section pile pipe and the bottom pile tip in a pressure equalizing mode, threads are arranged on the inner wall of the concave part and the outer wall of the convex part, and the top section pile pipe and the standard section pile pipe, the two adjacent standard section pile pipes and the standard section pile pipe and the bottom pile tip are connected through the threads of the concave part and the convex part. For example, the bottom of the top section pile pipe is integrally pressed with an inward concave part, the top and the bottom of the standard section pile pipe are respectively integrally pressed with an outward convex part and an inward concave part, and the top of the bottom section pile tip is integrally pressed with an outward convex part, so that the arrangement is easier to operate during assembly and connection, and the concave part and the convex part can play a role in connecting and supporting the corresponding water injection pipe when the water injection pipe is arranged in the top section pile pipe, the standard section pile pipe and the bottom section pile tip.
Preferably, the height of the convex part between the top pile tube and the standard pile tube and between two adjacent standard pile tubes is greater than that of the concave part; after the convex part and the concave part are fastened through threads, gaps are reserved between the top section pile pipe and the standard section pile pipe and between two adjacent standard section pile pipes up and down, two semicircular cushion pads are oppositely arranged in the gaps, and the two semicircular cushion pads are fastened and connected through bolt assemblies. The reason that the height of the convex part between the top section pile pipe and the standard section pile pipe and the height of the convex part between two adjacent standard section pile pipes are larger than the height of the concave part is to save time and labor during disassembly, and because the outer diameters of the standard section pile pipes, the standard section pile pipes and the bottom pile tip are thicker, the disassembly tool cannot be operated well during grabbing; according to the invention, the part of the convex part higher than the concave part is thinner, and the disassembling tool directly grabs the convex part for disassembling better operation. Gaps are reserved between the top section pile pipe and the standard section pile pipe and between two adjacent standard section pile pipes up and down, two semicircular cushion pads are arranged in the gaps, the two semicircular cushion pads oppositely surround into a ring shape, and the two semicircular cushion pads are fastened and connected through bolt assemblies, so that the disassembly is convenient; the two semicircular cushion pads are supported between the top section pile pipe and the standard section pile pipe and between the two adjacent standard section pile pipes so that the whole synchronous water injection humidifying device for the lime-soil compaction pile is stressed uniformly in the working process, and the influence caused by vibration is reduced.
Preferably, the outer diameters of the top section pile pipe and the standard section pile pipe are equal, and the outer diameter of the cylindrical upper part of the bottom pile tip is larger than the outer diameters of the top section pile pipe and the standard section pile pipe. Collapsible loess is because of probably taking place local collapsible, undergauge after the water injection, and the setting of tube-shape upper portion external diameter is great, can carry the stake pipe in-process at the pore-forming, guarantees the aperture once more.
Preferably, a round angle is arranged between the side wall of the cylindrical upper part of the bottom pile tip and the top. When the soil is excavated after being driven into the soil, the round angle is arranged between the side wall of the upper part of the cylindrical shape of the pile tip at the bottom and the top, so that friction can be reduced, the soil is convenient to emerge, and the soil is convenient to slide.
Preferably, an annular groove with an outward opening is formed in the side wall of the inverted cone-shaped tip along the circumferential direction, and the water outlet holes are uniformly distributed on the upper wall of the annular groove. Therefore, the water outlet hole on the tip of the inverted cone can be prevented from being blocked by mud in the piling process.
The invention has the beneficial effects that: the invention provides a synchronous water injection humidifying device for an ash soil compaction pile, which can realize synchronous water injection in the process of punching, the water injection amount can be manually controlled according to geological conditions and technological requirements, too little water injection and water resource waste can not occur, the effect of uniformly humidifying the surface layer and the deep layer of a pile hole is achieved, the hole forming and compacting effect is good, and the construction period is shortened; the synchronous water injection humidifying device enables the lime-soil compaction pile to have the advantages of short working period of hole forming and water injection at the same time, and the breakthrough of doubling the treatment depth is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of a synchronous water injection and humidification device for a lime-soil compaction pile according to the present invention;
FIG. 2 is a schematic structural view of the top section pile tube of the present invention;
FIG. 3 is a schematic structural view of a standard pile tube of the present invention;
FIG. 4 is a schematic view of the construction of the bottom stake point of the present invention;
FIG. 5 is a schematic cross-sectional view of the bottom toe of the present invention along the outlet opening;
FIG. 6 is a schematic view of the semicircular cushion of the present invention;
fig. 7 is a schematic view of another construction of the bottom stake point of the present invention.
In the figure: 1-top section pile pipe; 2-pile tip at the bottom; 3-standard pile pipe section; 4-water injection pipe; 5-a cylindrical upper part; 6-inverted cone-shaped tip; 7-water outlet; 8-a recess; 9-a convex part; 10-semicircular cushion pads; 11-annular groove.
Detailed Description
Referring to fig. 1 to 2, a synchronous water injection and humidification device for an ash compaction pile of the present invention will be described in detail.
A synchronous water injection humidifying device for an ash-soil compaction pile is shown in figure 1 and comprises a top pile tube 1, a bottom pile tip 2 and a plurality of standard pile tubes 3, wherein the top pile tube 1, the standard pile tubes 3 and the bottom pile tips 2 are coaxially arranged from top to bottom and are sequentially connected, water injection tubes 4 are arranged on central shafts of the top pile tube 1 and the standard pile tubes 3 respectively, and the end parts of the water injection tubes 4 at the tops of the top pile tubes 1 extend to the outside as shown in figures 1 and 2; as shown in fig. 4, the bottom pile tip 2 includes a cylindrical upper portion 5 and an inverted cone-shaped tip 6, a water injection pipe 4 is disposed on a central axis of the bottom pile tip 2, a plurality of water outlet holes 7 are uniformly distributed on a side wall of the inverted cone-shaped tip 6 along a circumferential direction, the water outlet holes 7 are communicated with a bottom end of the water injection pipe 4 in the bottom pile tip 2, wherein a cross-sectional view of the inverted cone-shaped tip 6 along the water outlet holes 7 is shown in fig. 5; when the top pile pipe 1 is connected with the standard pile pipe 3, the bottom end of the water injection pipe 4 in the top pile pipe 1 is communicated with the top end of the water injection pipe 4 in the standard pile pipe 3; and when the standard pile pipe 3 is connected with the bottom pile tip 2, the bottom end of the water injection pipe 4 in the standard pile pipe 3 is communicated with the top end of the water injection pipe 4 in the bottom pile tip 2. The cylindrical upper part 5 and the inverted cone-shaped tip 6 of the bottom pile tip 2 are integrally formed,
in actual operation, the top pile tube 1 and the standard pile tube 3 are made to be 3m long, the bottom pile tip 2 is set to be 1.5m long, the pipe diameter of the water injection pipe 4 is 10mm, the number of the standard pile tubes 3 is determined according to construction requirements, the water outlet holes 7 on the bottom pile tip 2 are generally set to be six to eight, the diameter is generally 10mm, the top pile tube 1, the plurality of standard pile tubes 3 and the bottom pile tip 2 are sequentially assembled and connected from top to bottom, after being assembled, the assembled pile is equivalent to the machine tube part of the traditional lime-soil compaction pile, and the pile machine is assembled in place, the top pile pipe 1, a plurality of standard pile pipes 3 and a water injection pipe 4 in the bottom pile tip 2 are communicated, the water injection pipe 4 outside the top section pile pipe 1 is connected with an external water inlet pipe water meter and a water pump, then water testing and pressure testing are carried out, starting trial driving is carried out, water injection and hole forming are carried out to the depth of a designed pile, and the punching water yield is detected and controlled at each time according to the water meter in the punching process. Wherein the water yield of each punching is controlled according to the process requirements.
Further, as a specific embodiment of the device for synchronously injecting water and humidifying in the lime soil compacted pile of the present invention, as shown in fig. 2, 3 and 4, a concave portion 8 and a convex portion 9 which are matched with each other are respectively formed between the top pile tube 1 and the standard pile tube 3, between two adjacent standard pile tubes 3 at the upper and lower sides, and between the standard pile tube 3 and the bottom pile tip 2 in a pressure equalizing manner, the inner wall of the concave portion 8 and the outer wall of the convex portion 9 are respectively provided with a thread, and the top pile tube 1 and the standard pile tube 3, between two adjacent standard pile tubes 3, and between the standard pile tube 3 and the bottom pile tip 2 are respectively connected by the thread of the concave portion 8 and the thread of the convex portion 9. For example, the inward concave part 8 is pressed at the bottom of the top pile tube 1, the outward convex part 9 and the inward concave part 8 are pressed at the top and the bottom of the standard pile tube 3, respectively, and the outward convex part 9 is pressed at the top of the bottom pile tip 2, so that the arrangement is easier to operate during assembly and connection, and the concave part 8 and the convex part 9 can play a role in connecting and supporting the corresponding water injection tube 4 when the water injection tube 4 is arranged in the top pile tube 1, the standard pile tube 3 and the bottom pile tip 2.
Further, as a specific embodiment of the device for synchronously injecting water and humidifying for the lime-soil compacted pile of the present invention, as shown in fig. 1, the height of the convex portion 9 between the top pile tube 1 and the standard pile tube 3 and between two adjacent standard pile tubes 3 is greater than the height of the concave portion 8; after the convex part 9 and the concave part 8 are fastened by screw threads, gaps are reserved between the top section pile pipe 1 and the standard section pile pipe 3 and between two adjacent standard section pile pipes 3, the height of the gap is set to be 5cm during specific operation, two semicircular cushion pads 10 are oppositely arranged in the gap, and the two semicircular cushion pads 10 are specifically as shown in fig. 6 and are fastened and connected through bolt assemblies. The reason that the height of the convex part 9 between the top pile tube 1 and the standard pile tube 3 and between the two adjacent standard pile tubes 3 is greater than that of the concave part 8 is to save time and labor during disassembly, and because the outer diameters of the standard pile tubes 3, the standard pile tubes 3 and the bottom pile tip 2 are thicker, the disassembly tool cannot operate well during grabbing; in the invention, the part of the convex part 9 higher than the concave part 8 is thinner, and the disassembling tool directly grabs the convex part 9 for better disassembling operation and is also a disassembling tool. Gaps are reserved between the top section pile pipe 1 and the standard section pile pipes 3 and between two adjacent standard section pile pipes 3 up and down, two semicircular cushion pads 10 are arranged in the gaps, the two semicircular cushion pads 10 oppositely enclose into a ring shape, and the two semicircular cushion pads 10 are fastened and connected through bolt assemblies, so that the disassembly is convenient; the two semicircular cushion pads 10 are supported between the top section pile pipe 1 and the standard section pile pipes 3 and between the two adjacent standard section pile pipes 3, so that the whole synchronous water injection humidifying device for the lime soil compaction pile is stressed uniformly in the working process, and the influence caused by vibration is reduced. The semicircular cushion pad 10 is made of hard rubber,
further, as a specific embodiment of the device for synchronously injecting water and humidifying for the lime-soil compacted pile of the present invention, as shown in fig. 1, the outer diameters of the top pile tube 1 and the standard pile tube 3 are equal, and the outer diameter of the cylindrical upper portion 5 of the bottom pile tip 2 is larger than the outer diameters of the top pile tube 1 and the standard pile tube 3. Collapsible loess is because of probably taking place local collapsible, undergauge after the water injection, and 5 external diameters in tube-shape upper portion set up great, can carry the stake pipe in-process in the pore-forming, guarantee the aperture once more.
Further, as a specific embodiment of the device for synchronously injecting water and humidifying for the lime-soil compacted pile of the present invention, as shown in fig. 1 and 4, a round angle is provided between the side wall and the top of the cylindrical upper part 5 of the bottom pile tip 2. When the soil is excavated after being driven into the soil, the round angle is arranged between the side wall of the cylindrical upper part 5 of the bottom pile tip 2 and the top, so that friction can be reduced, the soil is convenient to emerge, and the soil is convenient to slide.
Further, as a specific embodiment of the device for synchronously injecting water and humidifying for the lime-soil compacted pile of the present invention, as shown in fig. 7, an annular groove 11 with an outward opening is circumferentially arranged on the side wall of the inverted cone-shaped tip 6, and the water outlet holes 7 are uniformly distributed on the upper wall of the annular groove 11. This prevents the outlet opening 7 of the inverted cone-shaped tip 6 from becoming clogged with mud during pile driving.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a synchronous water injection humidification device of lime-soil compaction stake which characterized in that: the pile comprises a top section pile pipe (1), a bottom section pile tip (2) and a plurality of standard section pile pipes (3), wherein the top section pile pipe (1), the standard section pile pipes (3) and the bottom section pile tip (2) are coaxially arranged from top to bottom and are sequentially connected, water injection pipes (4) are arranged on central shafts of the top section pile pipe (1) and the standard section pile pipes (3), and the end parts of the water injection pipes (4) at the top of the top section pile pipe (1) extend to the outside; the bottom pile tip (2) comprises a cylindrical upper part (5) and an inverted cone-shaped tip (6), a water injection pipe (4) is arranged on a central shaft of the bottom pile tip (2), a plurality of water outlet holes (7) are uniformly distributed on the side wall of the inverted cone-shaped tip (6) along the circumferential direction, and the water outlet holes (7) are communicated with the bottom end of the water injection pipe (4) in the bottom pile tip (2); when the top pile pipe (1) is connected with the standard pile pipe (3), the bottom end of the water injection pipe (4) in the top pile pipe (1) is communicated with the top end of the water injection pipe (4) in the standard pile pipe (3); when two adjacent pile pipes are connected with the standard pile pipe (3), the bottom end of the water injection pipe (4) in the top pile pipe (1) is communicated with the top end of the water injection pipe (4) in the standard pile pipe (3); and when the standard pile pipe (3) is connected with the bottom pile tip (2), the bottom end of the water injection pipe (4) in the standard pile pipe (3) is communicated with the top end of the water injection pipe (4) in the bottom pile tip (2).
2. The device for synchronously injecting water and humidifying the lime-soil compaction pile as claimed in claim 1, wherein: the pile is characterized in that a concave part (8) and a convex part (9) which are matched with each other are uniformly distributed between the top pile tube (1) and the standard pile tube (3), between two adjacent standard pile tubes (3) at the upper part and the lower part, and between the standard pile tube (3) and the bottom pile tip (2), threads are arranged on the inner wall of the concave part (8) and the outer wall of the convex part (9), and the top pile tube (1) is connected with the standard pile tube (3), between the two adjacent standard pile tubes (3), and between the standard pile tube (3) and the bottom pile tip (2) through the threads of the concave part (8) and the convex part (9).
3. The device for synchronously injecting water and humidifying the lime-soil compaction pile as claimed in claim 2, wherein: the height of the convex part (9) between the top section pile pipe (1) and the standard section pile pipe (3) and between two adjacent standard section pile pipes (3) is greater than that of the concave part (8); after the convex part (9) and the concave part (8) are fastened through threads, gaps are reserved between the top section pile pipe (1) and the standard section pile pipe (3) and between the two adjacent standard section pile pipes (3) up and down, two semicircular cushion pads (10) are oppositely arranged in the gaps, and the two semicircular cushion pads (10) are fastened and connected through bolt assemblies.
4. The device for synchronously injecting water and humidifying the lime-soil compaction pile as claimed in claim 1, 2 or 3, wherein: the outer diameter of the top section pile pipe (1) is equal to that of the standard section pile pipe (3), and the outer diameter of the cylindrical upper part (5) of the bottom pile tip (2) is larger than that of the top section pile pipe (1) and the standard section pile pipe (3).
5. The device for synchronously injecting water and humidifying the lime-soil compaction pile as claimed in claim 4, wherein: and a round angle is formed between the side wall and the top of the cylindrical upper part (5) of the bottom pile tip (2).
6. The device for synchronously injecting water and humidifying the lime-soil compaction pile as claimed in claim 5, wherein: the lateral wall of back taper shape point (6) is gone up and is equipped with annular groove (11) that the opening is outwards along circumference, apopore (7) equipartition is to the upper wall department of annular groove (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911148799.8A CN110820789A (en) | 2019-11-21 | 2019-11-21 | Synchronous water injection humidifying device for lime-soil compaction pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911148799.8A CN110820789A (en) | 2019-11-21 | 2019-11-21 | Synchronous water injection humidifying device for lime-soil compaction pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750607A (en) * | 2019-03-13 | 2019-05-14 | 秦山伟业建设集团有限公司 | A kind of pile for prestressed pipe and Bailey beam combined bridge bracket erection construction method |
| CN117845874A (en) * | 2024-03-07 | 2024-04-09 | 国网山西省电力公司经济技术研究院 | Pressurized control water injection system for low-water-content collapsible loess field |
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| CN109750607A (en) * | 2019-03-13 | 2019-05-14 | 秦山伟业建设集团有限公司 | A kind of pile for prestressed pipe and Bailey beam combined bridge bracket erection construction method |
| CN117845874A (en) * | 2024-03-07 | 2024-04-09 | 国网山西省电力公司经济技术研究院 | Pressurized control water injection system for low-water-content collapsible loess field |
| CN117845874B (en) * | 2024-03-07 | 2024-05-14 | 国网山西省电力公司经济技术研究院 | Pressurized control water injection system for low-water-content collapsible loess field |
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