CN114934503A - Tubular pile capable of directional grouting - Google Patents
Tubular pile capable of directional grouting Download PDFInfo
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- CN114934503A CN114934503A CN202210500547.2A CN202210500547A CN114934503A CN 114934503 A CN114934503 A CN 114934503A CN 202210500547 A CN202210500547 A CN 202210500547A CN 114934503 A CN114934503 A CN 114934503A
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- 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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- 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
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- 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
- E02D5/58—Prestressed concrete piles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Civil Engineering (AREA)
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- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses a tubular pile capable of directional grouting, which mainly comprises a tubular pile body, a grouting pipe, a water injection pipe, an upper grout stop plug, a communicating pipe and a lower grout stop plug. The side wall of the tubular pile body is provided with a first grouting hole; the side wall of the grouting pipe is provided with a second grouting hole; the upper grout stop plug is positioned above the second grouting hole, and the lower grout stop plug is positioned below the second grouting hole; the upper grout stop plug is communicated with the lower grout stop plug through a communicating pipe, and the upper grout stop plug is communicated with the outside through a water injection pipe. The scheme utilizes the upper grout stop plug and the lower grout stop plug to expand and compress the inner wall of the tubular pile body and the outer wall of the grouting pipe after inflation or liquid filling, so that a closed buffer extrusion area is formed between the upper grout stop plug and the lower grout stop plug. And continuously extruding and conveying the grout for the grouting pipes through a grouting pump, enabling the grout to enter a buffer extrusion area from the second grouting hole, and injecting the grout into the soft soil layer from the first grouting hole by using grouting pressure, so that the directional, segmented, repeated and quantitative grouting of the pipe pile is realized, and the excellent soil layer solidification effect is finally obtained.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering, in particular to a tubular pile capable of realizing directional grouting.
Background
The pipe pile is a prestressed high-strength concrete pipe pile. The tubular pile has high bearing capacity, simple construction process, strong adaptability to geological conditions, reliable pile body quality, high bending resistance and high pulling resistance in standardized production process. Therefore, the pipe pile is widely applied to engineering construction.
The existing method for solving the soil squeezing effect is that drainage ditches are arranged around the position of a pile pressing position, and redundant moisture in a soil body can be discharged during pile pressing to reduce the pore hydrostatic water pressure; in addition, the method can be used for grouting and solidifying the soil body before pile pressing, so that the soft soil layer is solidified, the pore water pressure is reduced, and the bearing capacity of the soil layer is improved. The construction technology commonly used at present often has that the construction flow is comparatively complicated, will spend the plenty of time digging the escape canal, and the drainage time is longer. The grouting solidification soil body is grouted from the surface soil body to the deep soil body, which causes the grouting operation to be complicated and the curing agent to be wasted. Therefore, it is necessary to improve and perfect the existing piling work for soft soil.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a tubular pile capable of directional grouting.
The purpose of the invention is realized by the following technical scheme:
a tubular pile capable of directional grouting mainly comprises a tubular pile body, a grouting pipe, a water injection pipe, an upper grout stop plug, a communicating pipe and a lower grout stop plug.
Specifically, in this integument of body pressure people's soil body of tubular pile, be equipped with first grout hole on the lateral wall of tubular pile body, first grout hole runs through the lateral wall from inside to outside, and thick liquid (curing agent) alright reach outside soft soil layer through first grout hole from tubular pile body is inside. And a second grouting hole is formed in the side wall of the grouting pipe, and the grout reaches the interior of the tubular pile body from the grouting pipe through the second grouting hole. And the upper grout stop plug and the lower grout stop plug are fixed on the grouting pipe, the upper grout stop plug is positioned above the second grouting hole, and the lower grout stop plug is positioned below the second grouting hole. A buffer extrusion area between the grout from the second grouting hole to the first grouting hole 11 is formed between the upper grout stop plug and the lower grout stop plug. The upper grout stop plug is communicated with the lower grout stop plug through a communicating pipe, and the upper grout stop plug is communicated with the outside through a water injection pipe.
During operation, slip casting pipe and two upper and lower grout stopping plugs all insert the tubular pile originally internally to can reciprocate in the tubular pile is originally internal. And after the grouting pipe is moved downwards to a proper position (the first grouting hole and the second grouting hole are both positioned in the buffer extrusion area), the upper grout stop plug and the lower grout stop plug are simultaneously inflated or filled with liquid. When filled with gas or liquid, a relatively sealed space is formed in the buffer extrusion area. And the grouting pipe continuously injects grout into the buffer extrusion area through the second grouting hole. After the buffer extrusion area is filled with the grout, under the grouting pressure, the grout flows out through the first grouting hole and reaches the soft soil layer, so that the directional grouting of the tubular pile is realized.
As a preferred scheme of the invention, the tubular pile body with the first grouting hole provided by the invention can be realized by forming the first grouting hole on a common tubular pile. Or the common tubular pile and the tubular pile (novel tubular pile) with the first grouting hole are spliced and fixed in the longitudinal direction. The scheme is more optimal, because the positions of the soft soil layers of different soil bodies are different, the splicing position of the novel tubular pile can be calculated according to the depth of the actual soft soil layer in a splicing and fixing mode, so that the novel tubular pile can be repeatedly utilized, and the waste of a common tubular pile is reduced.
As a preferable scheme of the invention, the upper grout stop plug and the lower grout stop plug are made of elastic sacs or sleeves or bag-shaped objects with inflatable bodies or liquid. The upper grout stop plug and the lower grout stop plug have the main functions of inflating or filling liquid during grouting, so that a sealed and extruded area from the second grouting hole to the first grouting hole is formed. And after grouting is finished, air or liquid is discharged, so that the pressure on the inner wall of the pipe pile body is released, and the grouting pipe can freely move up and down so as to be conveniently adjusted to a proper grouting position.
Furthermore, in order to limit the expansion range of the two grout stop plugs, the pressure of the grout stop plugs on the inner wall of the pipe pile body is increased, and a better sealing effect is obtained. The invention also comprises an upper annular tray and a lower annular tray which are fixedly arranged on the grouting pipe. The upper annular tray is positioned above the upper grout stop plug, and the lower annular tray is positioned below the lower grout stop plug. Simultaneously, the setting of two annular trays can further strengthen the bearing upper limit in cushion extrusion district, also can strengthen bearing and the supporting effect to thick liquid weight, lower part stop thick liquid stopper.
As the preferable scheme of the invention, the length of the grouting pipe is convenient to increase and decrease, and the transportation of the grouting pipe is convenient. The grouting pipe is designed by adopting a multi-section splicing structure. And splicing each section of grouting pipe by adopting a threaded connection mode.
As a preferable scheme of the invention, the curing effect of the soft soil layer is reduced in order to avoid the backflow of the grout from the first grouting hole into the tubular pile body. And a one-way grout stop plug or a one-way grout stop valve is arranged in the first grouting hole.
Furthermore, the invention also comprises a fixing sleeve for fixing the grouting pipe, a sleeve screw and a sleeve fixing frame. The sleeve fixing frame is erected above the tubular pile body. The fixed sleeve is arranged on the sleeve fixing frame. The telescopic screw is arranged on the side wall of the fixed sleeve and used for fixing the grouting pipe. The fixing device can be extended to have another function of assembling the grouting pipe. When the slip casting pipe moves down, because the former section of slip casting pipe has been fixed in fixed sleeve, can pass through the screw thread mode with the next section of slip casting pipe (specifically, can set up the internal thread at the former section of slip casting pipe end, the latter section of slip casting pipe front end sets up the external screw thread to it is fixed through screw thread locking with both) realizes the concatenation installation of former section and the next section of slip casting pipe. And after the latter section of grouting pipe is extended to the tail end depth, splicing and fixing the latter section of grouting pipe and the latter section of grouting pipe in a threaded connection mode. The length of the single grouting pipe can be greatly shortened by utilizing the splicing fixing mode, the number of required splices can be calculated according to the depth of the soft soil layer, and the flexibility and controllability of splicing in the scheme are enhanced.
In a preferred embodiment of the present invention, the distance between the upper grout stop plug and the lower grout stop plug varies with the switching between the expanded and shrunk states, so the water injection pipe and the communication pipe of the present invention both need to be designed by flexible pipes. Thus, the communication between the upper grout stopping plug and the lower grout stopping plug can be ensured no matter the grout stopping plugs are expanded or shrunk. And the upper grout stop plug can be communicated with the water pump no matter the grouting pipe is detected downwards or is deep or shallow.
Furthermore, the invention also comprises a grouting pump and a grouting pipeline. The grouting pump is connected with the grouting pipe through a grouting pipeline.
Furthermore, the invention also comprises a water pump and a water valve or an air pump and an air valve. The water pump or the air pump is connected with the water injection pipe through a water valve or an air valve. When the upper grout stopping plug and the lower grout stopping plug need to be decompressed, the water valve or the air valve is opened to discharge liquid or air in the upper grout stopping plug and the lower grout stopping plug so as to reduce the pressure in the upper grout stopping plug and the lower grout stopping plug, and the grouting pipe can move up and down freely.
The working process and principle of the invention are as follows: the scheme utilizes the upper grout stopping plug and the lower grout stopping plug to expand and compress the inner wall of the tubular pile body and the outer wall of the grouting pipe after inflation or liquid filling, so that a closed buffer extrusion area is formed between the upper grout stopping plug and the lower grout stopping plug. And continuously extruding and conveying the grout for the grouting pipe through a grouting pump to enable the grout to enter a buffer extrusion area from the second grouting hole, and injecting the grout into the soft soil layer from the first grouting hole by using grouting pressure to realize directional, segmented, repeated and quantitative grouting of the tubular pile and finally obtain an excellent soil layer curing effect. The invention also has the advantages of simple structure, convenient operation and easy implementation.
Compared with the prior art, the invention also has the following advantages:
(1) compared with the traditional sleeve valve pipe grouting, the scheme of the invention overcomes the problems that the sleeve valve pipe is easy to leak grout, large-aperture hole grouting cannot be carried out and grouting holes are blocked by grouting sleeve shell materials.
(2) The pile capable of directional grouting provided by the invention performs grouting through the reserved grouting holes of the pile body, simplifies the traditional grouting operation process and obviously saves grouting time. Simultaneously, the novel tubular pile that this scheme provided can realize the pile extension of alternateing each other with ordinary tubular pile, is showing the utilization ratio that has improved the tubular pile, has effectively expanded the use occasion of ordinary tubular pile.
(3) The pile capable of directional grouting provided by the invention can realize directional and quantitative grouting in the pile by matching the upper and lower grout stopping plugs and the grouting pipe with the pile grouting hole. Simultaneously, this scheme can also realize the segmentation grout operation through adjusting the inside hydraulic pressure of only thick liquid stopper, and cementer can conveniently take out and retrieve and recycle, effectively improves grouting efficiency, saves construction cost.
Drawings
Fig. 1 is a schematic structural view of a pile capable of directional grouting according to the present invention.
Fig. 2 is a top view of the structure of the pile portion capable of directional grouting provided by the present invention.
FIG. 3 is a schematic diagram of the location of slurry flow and distribution during grouting provided by the present invention.
The reference numbers in the above figures illustrate:
1-grouting pump, 2-grouting pipeline, 3-grouting pipe, 4-water pump, 5-water injection pipe, 6-water inlet, 7-upper grout stop plug, 8-water outlet, 9-communicating pipe, 10-communicating port, 11-first grouting hole, 12-curing agent, 13-upper common pipe pile, 14-upper annular tray, 15-novel pipe pile, 16-second grouting hole, 17-lower grout stop plug, 18-lower annular tray, 19-one-way grout stop plug, 20-upper hard soil layer, 21-soft soil layer, 22-lower hard soil layer, 23-fixing sleeve, 24-sleeve screw, 25-sleeve fixing frame, 26-water valve, 27-hollow steel pipe and 28-lower common pipe pile.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described below with reference to the accompanying drawings and examples.
Example 1:
as shown in fig. 1 to 3, the present embodiment discloses a pipe pile capable of directional grouting, which mainly comprises a pipe pile body, a grouting pipe 3, a water injection pipe 5, an upper grout stop plug 7, a communicating pipe 9, and a lower grout stop plug 17.
Specifically, the tubular pile body is pressed in the human soil body (upper portion stereoplasm soil layer 20, soft soil layer 21, lower part stereoplasm soil layer 22), is equipped with first grout hole 11 on the lateral wall of tubular pile body, first grout hole 11 runs through the lateral wall from inside to outside, and thick liquid (curing agent 12) alright reach outside soft soil layer 21 through first grout hole 11 from tubular pile body inside. And a second grouting hole 16 is formed in the side wall of the grouting pipe 3, and the grout reaches the interior of the tubular pile body from the grouting pipe 3 through the second grouting hole 16. The upper grout stop plug 7 and the lower grout stop plug 17 are fixed on the grouting pipe 3, the upper grout stop plug 7 is located above the second grouting hole 16, and the lower grout stop plug 17 is located below the second grouting hole 16. A buffer extrusion area between the grout stop plugs 7 and 17 is formed between the grout stop plugs from the second grouting hole to the first grouting hole 11. The upper grout stop plug 7 is communicated with the lower grout stop plug 17 through a communicating pipe 9, and the upper grout stop plug 7 is communicated with the outside through a water injection pipe 5.
During operation, slip casting pipe 3 and two upper and lower grout stopping plugs all insert the tubular pile originally internally to can reciprocate in the tubular pile is originally internal. After the grouting pipe 3 is moved down to a proper position (the first grouting hole 11 and the second grouting hole 16 are both positioned in the buffer extrusion area), the upper grout stop plug 7 and the lower grout stop plug 17 are simultaneously inflated or filled with liquid. When filled with gas or liquid, a relatively sealed space is formed in the buffer extrusion area. The grouting pipe 3 continuously injects grout into the buffer extrusion area through the second grouting hole 16. After the buffer extrusion area is filled with the grout, the grout flows out through the first grouting hole 11 under grouting pressure and reaches the soft soil layer 21, so that the directional grouting of the tubular pile is realized.
As a preferred scheme of the present invention, the tubular pile body with the first grouting hole 11 provided by the present invention can be implemented by forming the first grouting hole 11 in a common tubular pile. Or the common pipe piles (the upper common pipe pile 13 and the lower common pipe pile 28) and the pipe pile (the novel pipe pile 15) with the first grouting hole 11 are longitudinally spliced and fixed. The scheme of the latter scheme is more optimal, because the positions of the soft soil layers 21 of different soil bodies are different, the splicing position of the novel tubular pile can be calculated according to the depth of the actual soft soil layer 21 in a splicing and fixing mode, so that the novel tubular pile can be repeatedly utilized, and the waste of a common tubular pile is reduced.
In a preferred embodiment of the present invention, the upper grout stop plug 7 and the lower grout stop plug 17 are elastic bags or sleeves or bag-shaped objects filled with air or liquid. The main function of the upper grout stop plug 7 and the lower grout stop plug 17 is to fill air or liquid during grouting, so that a sealed and squeezed area between the second grouting hole 16 and the first grouting hole 11 is formed. And after grouting is finished, air or liquid is discharged, so that the pressure on the inner wall of the pipe pile body is released, and the grouting pipe 3 can freely move up and down so as to be conveniently adjusted to a proper grouting position.
Furthermore, in order to limit the expansion range of the two grout stop plugs, the pressure of the grout stop plugs on the inner wall of the pipe pile body is increased, and a better sealing effect is obtained. The invention also comprises an upper annular tray 14 and a lower annular tray 18 fixedly mounted on the grouting pipe 3. The upper annular tray 14 is located above the upper grout stop 7 and the lower annular tray 18 is located below the lower grout stop 17. Meanwhile, the arrangement of the two annular trays can further enhance the bearing upper limit of the buffer extrusion area, and can also enhance the bearing and supporting effects on the weight of the slurry and the lower slurry stop plug 17.
As a preferable scheme of the invention, the length of the grouting pipe 3 is convenient to increase and decrease, and the transportation of the grouting pipe 3 is convenient. The grouting pipe 3 adopts a multi-section splicing structural design. And each section of grouting pipe 3 is spliced in a threaded connection mode. The material of the grouting pipe 3 can adopt a hollow steel pipe 27.
In a preferred embodiment of the present invention, the solidification effect of the soft soil layer 21 is reduced in order to prevent the slurry from flowing back into the tubular pile body from the first grouting hole 11. And a one-way grout stop plug 19 or a one-way grout stop valve is arranged in the first grouting hole 11.
Further, the present invention further includes a fixing sleeve 23 for fixing the grout pipe 3, a sleeve screw 24, and a sleeve fixing bracket 25. The sleeve fixing frame 25 is erected above the tubular pile body. The fixed sleeve 23 is mounted on a sleeve mount 25. The telescopic screw 24 is arranged on the side wall of the fixed sleeve 23 and used for fixing the grouting pipe 3. The set of fixtures can be extended to another role-for the assembly of the grout pipe 3. When slip casting pipe 3 moves down as required, because preceding a lesson slip casting pipe 3 has been fixed in fixed sleeve 23, can pass through the screw thread mode with the back slip casting pipe 3 (specifically, can set up the internal thread at preceding a lesson slip casting pipe 3 end, back slip casting pipe 3 front end sets up the external screw thread to it is fixed through screw thread locking with both) realizes the concatenation installation of preceding a lesson and back slip casting pipe 3. After the latter grouting pipe 3 extends to the tail end depth, the latter grouting pipe 3 and the latter grouting pipe 3 are spliced and fixed in a threaded connection mode. The length of the single grouting pipe 3 can be greatly shortened by utilizing the splicing fixing mode, the number of required splices can be calculated according to the depth of the soft soil layer 21, and the splicing flexibility and controllability of the scheme are enhanced.
In a preferred embodiment of the present invention, since the distance between the upper grout stop plug 7 and the lower grout stop plug 17 changes according to the switching between the expanded and contracted states, the water injection pipe 5 and the communication pipe 9 according to the present invention are both designed as flexible pipes. Thus, the communication between the upper grout stopping plug and the lower grout stopping plug can be ensured no matter the grout stopping plugs are expanded or shrunk. And the communication between the upper grout stop plug 7 and the water pump 4 can be ensured no matter the grouting pipe 3 is downward-extended or deep or shallow. Specifically, the upper side of the upper grout stop plug 7 is provided with a water inlet 7 communicated with the water injection pipe 5, and the lower side is provided with a water outlet 8 communicated with a communicating pipe 9. And the upper side of the lower grout stop plug 17 is provided with a communication port 10 communicated with the communication pipe 9.
Further, the invention also comprises a grouting pump 1 and a grouting pipeline 2. The grouting pump 1 is connected with a grouting pipe 3 through a grouting pipeline 2.
Furthermore, the invention also comprises a water pump 4 and a water valve 26 or an air pump and an air valve. The water pump 4 or the air pump is connected with the water injection pipe 5 through a water valve 26 or an air valve. When the upper grout stop plug 7 and the lower grout stop plug 17 need to be decompressed, the water valve 26 or the gas valve is opened to discharge the liquid or gas in the grouting pipe 3, so that the pressure in the grouting pipe can be reduced, and the grouting pipe can move up and down freely.
The working process and principle of the invention are as follows: according to the scheme, the upper grout stop plug 7 and the lower grout stop plug 17 expand and tightly press the inner wall of the tubular pile body and the outer wall of the grouting pipe 3 after inflation or liquid filling, so that a closed buffer extrusion area is formed between the upper grout stop plug and the lower grout stop plug. And (3) continuously extruding and conveying the grout to the grouting pipes 3 through the grouting pump 1 to enable the grout to enter a buffer extrusion area from the second grouting holes 16, and injecting the grout into the soft soil layer 21 from the first grouting holes 11 by using grouting pressure to realize directional, segmented, repeated and quantitative grouting of the pipe pile and finally obtain an excellent soil layer solidification effect. The invention also has the advantages of simple structure, convenient operation and easy implementation.
Example 2:
the embodiment discloses a use method of a tubular pile capable of being directionally filled, which mainly comprises the following steps:
step S1: according to the geological survey data, carry out the pile pressing and pile extension operation with novel tubular pile 15 and ordinary tubular pile according to certain order for novel tubular pile 15's first grout hole 11 aligns soft soil layer 21.
Step S2: the water inlet 6 of the upper grout stop plug 7 is connected with the water injection pipe 5, and the other end of the water injection pipe 5 is connected with the water pump 4.
Step S3: and (3) erecting a sleeve fixing frame 25 at the top of the pile, putting the internal thread end of the grouting pipe 3 into a fixing sleeve 23 at the top of the sleeve fixing frame 25, and screwing a sleeve screw 24.
Step S4: the external thread end of the first hollow steel tube section 27 is fixed with the internal thread end of the grouting tube 3 in an overlapping mode, so that the first hollow steel tube section 27 is fixed with the grouting tube 3 in an accurate overlapping mode, the sleeve screw 24 is unscrewed after the overlapping is completed, and the first hollow steel tube section 27 is placed in the tubular pile body.
Step S5: when the internal thread end of the first section of hollow steel pipe 27 is sunk into the fixing sleeve 23, the sleeve screw 24 is screwed, and the hollow steel pipe 27 is lapped and sunk according to the steps until the second grouting hole 16 of the grouting pipe 3 is aligned with the first grouting hole 11 of the pile body.
Step S6: and (3) starting the water pump 4 to pump water to the upper slurry stop plug 7 and pressurizing, and closing the water pump 4 and the water valve 26 when the water cannot be pumped, namely the upper slurry stop plug 7 and the lower slurry stop plug 17 are pressurized.
Step S7: the hollow steel pipe 27 is connected with the grouting pump 1, and the grouting pump 1 is started to pump the curing agent 12 into the hollow steel pipe 27.
Step S8: when soil layer grouting is finished, closing the grouting pump 1, disconnecting the hollow steel pipe 27 from the grouting pump 1, opening the water valve 26 to discharge water from the upper grout stop plug 7 and the lower grout stop plug 17 so as to reduce the pressure in the grout stop plugs, and adjusting the grouting pipe 3 to the next grouting part;
step S9: and repeating the steps S5 to S8 until all soil layer grouting and curing operations are completed.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A tubular pile capable of directional grouting is characterized by comprising a tubular pile body, a grouting pipe, a water injection pipe, an upper grout stop plug, a communicating pipe and a lower grout stop plug;
the pipe pile body is pressed into the soil body, a first grouting hole is formed in the side wall of the pipe pile body, and the first grouting hole penetrates through the side wall from inside to outside; a second grouting hole is formed in the side wall of the grouting pipe; the upper grout stop plug and the lower grout stop plug are fixed on the grouting pipe, the upper grout stop plug is positioned above the second grouting hole, and the lower grout stop plug is positioned below the second grouting hole; the upper grout stop plug is communicated with the lower grout stop plug through a communicating pipe, and the upper grout stop plug is communicated with the outside through a water injection pipe; during operation, slip casting pipe and two upper and lower grout stopping plugs all insert the tubular pile originally internally to can reciprocate in the tubular pile is originally internal.
2. The pile of claim 1, wherein the pile body with the first grouting hole is formed by forming the first grouting hole in a common pile, or by fixing the common pile and the pile with the first grouting hole in a longitudinal direction by splicing.
3. The pile of claim 1, wherein the upper grout stop plug and the lower grout stop plug are made of inflatable or liquid elastic bag or sleeve or bag-shaped object.
4. The directionally groutable pipe pile of claim 1, further comprising an upper annular tray and a lower annular tray fixedly mounted on the grouting pipe; the upper annular tray is positioned above the upper grout stop plug, and the lower annular tray is positioned below the lower grout stop plug.
5. The pile of claim 1, wherein the grouting pipe is designed in a multi-section splicing structure; and splicing each section of grouting pipe by adopting a threaded connection mode.
6. The directionally groutable pipe pile of claim 1, wherein a one-way grout stop plug or a one-way grout stop valve is provided in the first grouting hole.
7. The directionally groutable pipe pile of claim 1, further comprising a fixing sleeve for fixing the grouting pipe, a socket screw, and a socket fixing bracket; the sleeve fixing frame is erected above the tubular pile body; the fixed sleeve is arranged on the sleeve fixed frame; the telescopic screw is arranged on the side wall of the fixed sleeve and used for fixing the grouting pipe.
8. The directionally groutable pipe pile of claim 1, wherein the water injection pipes and the communicating pipes are both designed by flexible pipes.
9. The directionally groutable pipe pile of claim 1, further comprising a grouting pump and a grouting pipe; the grouting pump is connected with the grouting pipe through a grouting pipeline.
10. The orientable grouted pipe pile of claim 1, further comprising a water pump and a water valve or an air pump and an air valve; the water pump or the air pump is connected with the water injection pipe through a water valve or an air valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210500547.2A CN114934503A (en) | 2022-05-09 | 2022-05-09 | Tubular pile capable of directional grouting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210500547.2A CN114934503A (en) | 2022-05-09 | 2022-05-09 | Tubular pile capable of directional grouting |
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| CN114934503A true CN114934503A (en) | 2022-08-23 |
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| CN202210500547.2A Pending CN114934503A (en) | 2022-05-09 | 2022-05-09 | Tubular pile capable of directional grouting |
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| US11225768B1 (en) * | 2020-08-28 | 2022-01-18 | Zhejiang University City College | Drainage grouting pipe and method of use thereof |
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2022
- 2022-05-09 CN CN202210500547.2A patent/CN114934503A/en active Pending
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| CN204456128U (en) * | 2015-01-21 | 2015-07-08 | 河北省建筑科学研究院 | A kind of delamination pour slurry rifle |
| CN208563340U (en) * | 2018-06-26 | 2019-03-01 | 李晓伟 | A kind of water conservancy and hydropower foundation grouting bracket |
| CN212077919U (en) * | 2020-04-13 | 2020-12-04 | 北京中岩大地科技股份有限公司 | Prestressed pipe pile capable of improving lateral resistance |
| US11225768B1 (en) * | 2020-08-28 | 2022-01-18 | Zhejiang University City College | Drainage grouting pipe and method of use thereof |
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