CN217480166U - Pile bottom post-grouting pressurizing device for cast-in-situ bored pile - Google Patents
Pile bottom post-grouting pressurizing device for cast-in-situ bored pile Download PDFInfo
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- CN217480166U CN217480166U CN202220865656.XU CN202220865656U CN217480166U CN 217480166 U CN217480166 U CN 217480166U CN 202220865656 U CN202220865656 U CN 202220865656U CN 217480166 U CN217480166 U CN 217480166U
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Abstract
The utility model relates to a drilling bored concrete pile base post-grouting technical field just discloses a drilling bored concrete pile base post-grouting pressure device, store storehouse, drain pump and slip casting pipe including water tank, thick liquid, the inside of water tank is provided with the suction pump, the delivery port of suction pump is connected with the raceway, the end of raceway is connected with the slip casting pipe, the discharge gate that the storehouse was stored to the thick liquid is connected with the mudjack through the connecting pipe, the discharge gate of mudjack is connected with the thick liquid conveyer pipe, the end-to-end connection of thick liquid conveyer pipe has the mud jacking pipe, the mud jacking pipe is located the inside of slip casting pipe. Through setting up pressure devices such as fixed cover, high pressure resistant bellows, slip cap and to the back slip casting pressurization work at bottom of the bored concrete pile, avoid the inside thick liquid of slip casting to appear the cavity wall phenomenon because of the air lock effect, guarantee the quality of bored concrete pile, easy operation, the reliability is high, is applicable to the back slip casting pressurization of bored concrete pile bottom and uses.
Description
Technical Field
The utility model relates to a drilling bored concrete pile end post grouting technical field specifically is a drilling bored concrete pile end post grouting pressure device.
Background
In recent years, with the rapid development of socioeconomic performance, infrastructure construction has been trending. The reinforcement treatment of soft foundations is involved in both municipal engineering construction and civil engineering construction. The mature construction process of foundation reinforcement treatment is many, wherein foundation grouting is a mature process with quick construction and good effect, and is widely applied.
When the bored pile is constructed in a weak stratum, post-grouting construction is often carried out to reinforce the foundation and enhance the bearing capacity of the pile end and the surrounding stratum in a certain range.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a drilling bored concrete pile base post-grouting pressure device.
(II) technical scheme
In order to solve the above problem, the utility model provides a following technical scheme: the utility model provides a drilling bored concrete pile end post-grouting pressure device, stores storehouse, drain pump and slip casting pipe including water tank, thick liquid, the inside of water tank is provided with the suction pump, the delivery port of suction pump is connected with the raceway, the end of raceway is connected with the slip casting pipe, the discharge gate that the storehouse was stored to the thick liquid is connected with the mudjack through the connecting pipe, the discharge gate of mudjack is connected with the thick liquid conveyer pipe, the end-to-end connection of thick liquid conveyer pipe has the slip casting pipe, the mud casting pipe is located the inside of slip casting pipe, the water inlet of drain pump is connected with the drain pipe, the end of drain pipe is connected with slip casting intraduct, the upper end of slip casting pipe is provided with fixed cover and sliding sleeve, the slip setting cover is in the below of fixed cover, be provided with high pressure resistant bellows between fixed cover and the sliding sleeve.
Preferably, the water pipe is provided with a booster pump, a one-way valve, a first exhaust valve and a pressure gauge from left to right in sequence.
Preferably, a second exhaust valve and a mud jacking valve are sequentially arranged on the slurry conveying pipe from bottom to top.
Preferably, a drain valve is arranged on the drain pipe.
Preferably, two ends of the high-pressure resistant corrugated pipe are respectively sleeved and connected to opposite end parts of the fixed sleeve and the sliding sleeve, and a water cavity is formed between the fixed sleeve and the sliding sleeve in an enclosing manner; the water pipe is arranged on the fixing sleeve in a penetrating way, and the water outlet of the water pipe is communicated with the water cavity; the grouting pipe penetrates through the fixed sleeve and the sliding sleeve, and a grout outlet of the grouting pipe is arranged below the sliding sleeve; the sliding sleeve is connected with the mud jacking pipe in a sliding way; the water inlet of the water discharge pipe is positioned at the bottom of the water cavity.
Preferably, the bottom of the sliding sleeve is provided with a sealing gasket.
Preferably, the lower end of the grouting pipe is provided with a grout discharging hole.
(III) advantageous effects
Compared with the prior art, the utility model provides a slip casting pressure device behind drilling bored concrete pile bottom possesses following beneficial effect:
1. this drilling bored concrete pile end post-grouting pressure device, through setting up pressure devices such as fixed cover, high pressure resistant bellows, slip cap to drilling bored concrete pile end post-grouting pressurization work, avoid the inside thick liquid of slip casting to appear the cavity wall phenomenon because of the air lock effect, guarantee the quality of bored concrete pile, easy operation, the reliability is high, is applicable to drilling bored concrete pile end post-grouting pressurization and uses.
Drawings
Fig. 1 is a schematic structural view of a post-grouting pressurizing device for a pile bottom of a cast-in-situ bored pile of the present invention;
FIG. 2 is a schematic view of the pressurizing device of the present invention;
FIG. 3 is a schematic view of the grouting structure of the pressurizing device of the present invention;
fig. 4 is a schematic structural view of the contraction (left side of the figure) and extension (right side of the figure) of the high pressure resistant corrugated pipe of the present invention.
In the figure: the device comprises a water tank 1, a water delivery pipe 2, a booster pump 3, a one-way valve 4, a first exhaust valve 5, a pressure gauge 6, a mud jacking valve 7, a mud slurry delivery pipe 8, a mud jacking pump 9, a mud slurry storage bin 10, a second exhaust valve 11, a drain valve 12, a drain pipe 13, a drain pump 14, a water suction pump 15, a mud jacking pipe 16, a mud grouting pipe 17, a mud slurry discharge hole 18, a fixed sleeve 19, a high-pressure-resistant corrugated pipe 20, a sliding sleeve 21 and a sealing gasket 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a new technical solution: the utility model provides a drilling bored concrete pile end post grouting pressure device, stores storehouse 10, drain pump 14 and slip casting pipe 17 including water tank 1, thick liquid, wherein, the inside of water tank 1 is provided with suction pump 15, the delivery port of suction pump 15 is connected with raceway 2, the end of raceway 2 is connected with slip casting pipe 17, the discharge gate of thick liquid storage storehouse 10 is connected with grouting pump 9 through the connecting pipe, the discharge gate of grouting pump 9 is connected with thick liquid conveyer pipe 8, the end-to-end connection of thick liquid conveyer pipe 8 has slip casting pipe 16, slip casting pipe 16 is located the inside of slip casting pipe 17, the water inlet of drain pump 14 is connected with drain pipe 13, the end and the slip casting pipe 17 of drain pipe 13 are inside to be connected, the upper end of slip casting pipe 17 is provided with fixed cover 19 and sliding sleeve 21, sliding sleeve 21 sets up the below at fixed cover 19, be provided with high pressure resistant bellows 20 between fixed cover 19 and the sliding sleeve 21,
in this embodiment, the water delivery pipe 2 is sequentially provided with a booster pump 3, a check valve 4, a first exhaust valve 5 and a pressure gauge 6 from left to right, the water suction pump 15 is located inside the water tank 1, a water outlet of the water suction pump 15 is communicated with the water delivery pipe 2, so as to inject water inside the water tank 1 into a water cavity through the water delivery pipe 2, the water pressure inside the water delivery pipe 2 can be pressurized by arranging the booster pump 3, the grouting pressure is increased, the phenomenon of hollow limitation of grouting is avoided, the direction of water flow is ensured by arranging the check valve 4, the reverse flow of water is avoided, the water outlet pressure relief in the water cavity can be realized by arranging the first exhaust valve 5, the air outlet during water injection in the water cavity is realized, the stability of the water pressure in the water cavity is ensured, the water pressure can be monitored by arranging the pressure gauge 6, and the pressure regulation is performed according to needs;
in the embodiment, a second exhaust valve 11 and a mud jacking valve 7 are sequentially arranged on the slurry conveying pipe 8 from bottom to top; the second exhaust valve 11 and the mud jacking valve 7 are arranged to exhaust redundant air inside the grouting pipe 17;
in the present embodiment, the drain pipe 13 is provided with a drain valve 12; the water inside the water cavity can be prevented from entering the interior of the drainage pump 14 under the action of the water pressure by arranging the drainage valve 12;
in this embodiment, two ends of the high pressure resistant corrugated pipe 20 are respectively sleeved and connected to opposite ends of the fixed sleeve 19 and the sliding sleeve 21, and a water cavity is defined between the fixed sleeve 19 and the sliding sleeve 21; the water delivery pipe 2 penetrates through the fixed sleeve 19, and a water outlet of the water delivery pipe 2 is communicated with the water cavity and used for delivering water into the water cavity; the grouting pipe 16 penetrates through the fixed sleeve 19 and the sliding sleeve 21, and a grout outlet of the grouting pipe 16 is arranged below the sliding sleeve 21 and used for grouting into the grouting pipe 17 to be sealed; the sliding sleeve 21 is connected with the mud jacking pipe 16 in a sliding way and is used for sliding along with the expansion and contraction of the high-pressure resistant corrugated pipe 20; the water inlet of the water discharge pipe 13 is positioned at the bottom of the water cavity;
in this embodiment, the bottom of the sliding sleeve 21 is provided with a sealing gasket 22 for sealing a gap between the sliding sleeve 21 and the grouting pipe 16 so as to prevent the water pressure in the water cavity from being released from the gap between the sliding sleeve 21 and the grouting pipe 17;
in this embodiment, the lower end of the grouting pipe 17 is provided with a grout outlet 18; the slurry diffuses through the small holes in the bottom of the grout pipe 17 to be sealed to the surrounding formation.
The working principle is as follows: the post-grouting pressurizing device at the bottom of the bored pile comprises a concrete tank truck, a grout storage bin 10, a grouting valve 7, a grouting pump 9, a grouting pipe 16, a grouting pipe 17, a grouting hole 18 at the lower end of the grouting pipe 17, a second exhaust valve 11, a water suction pump 15, a grouting pipe 16, a grouting pipe 17, a grouting pipe 16 and a second exhaust valve 11, wherein when grouting begins, the grouting pipe is pressurized by the grouting pump 9, the grouting pipe 17 and the grouting pipe 16 are connected in a sealed mode, the grouting pipe 16 is connected with the second exhaust valve 11, the second exhaust valve 11 is connected with the grouting pipe 16, pumping water in a water tank 1 by a water pump 15, starting a booster pump 3 to boost water pressure, enabling the water in the water tank 1 to flow into a water cavity between a fixed sleeve 19 and a sliding sleeve 21 through a water pipe 2, opening a first exhaust valve 5 to exhaust air in the water cavity in order to prevent air resistance formed in the water pipe 2 from affecting pressurization, closing the first exhaust valve 5 when the air is exhausted, enabling the sliding sleeve 21 to slide downwards under the driving of the water pressure to pressurize slurry in a grouting pipe 17, observing the pressurization size by a pressure gauge 6 to avoid the phenomenon of empty wall of the slurry in the grouting pipe 17 due to the air resistance, ensuring the quality of a grouting pile, starting a drainage pump 14 after the slurry is solidified, pumping the water in the water cavity through a drainage pipe 13, and then taking out pressurizing devices such as the fixed sleeve 19, a high-pressure-resistant corrugated pipe 20 and the sliding sleeve 21 from the upper end of the grouting pipe 17, and finishing post-grouting pressurization work of the pile bottom of the cast-in-situ bored pile.
This embodiment is through setting up pressure devices such as fixed cover 19, high pressure resistant bellows 20, slip cover 21 to drilling bored concrete pile end post-grouting pressurization work, avoids the inside thick liquid of slip casting pipe 17 to appear the cavity wall phenomenon because of the air lock effect, guarantees the quality of bored concrete pile, easy operation, and the reliability is high, is applicable to drilling bored concrete pile end post-grouting pressurization and uses.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a drilling bored concrete pile base post-grouting pressure device, includes that water tank (1), thick liquid store storehouse (10), drain pump (14) and slip casting pipe (17), its characterized in that: a water suction pump (15) is arranged in the water tank (1), a water outlet of the water suction pump (15) is connected with a water delivery pipe (2), the tail end of the water delivery pipe (2) is connected with a grouting pipe (17), a discharge hole of the slurry storage bin (10) is connected with a grouting pump (9) through a connecting pipe, a discharge hole of the grouting pump (9) is connected with a grout conveying pipe (8), the tail end of the grout conveying pipe (8) is connected with a grouting pipe (16), the mud pressing pipe (16) is positioned inside the mud injecting pipe (17), the water inlet of the drainage pump (14) is connected with a drainage pipe (13), the tail end of the drain pipe (13) is connected with the inside of the grouting pipe (17), the upper end of the grouting pipe (17) is provided with a fixed sleeve (19) and a sliding sleeve (21), the sliding sleeve (21) is arranged below the fixed sleeve (19), and a high-pressure resistant corrugated pipe (20) is arranged between the fixed sleeve (19) and the sliding sleeve (21).
2. The pile bottom post-grouting pressurizing device for the cast-in-situ bored pile as claimed in claim 1, wherein: the water delivery pipe (2) is sequentially provided with a booster pump (3), a one-way valve (4), a first exhaust valve (5) and a pressure gauge (6) from left to right.
3. The pile bottom post-grouting pressurizing device for the cast-in-situ bored pile as claimed in claim 1, wherein: and a second exhaust valve (11) and a mud jacking valve (7) are sequentially arranged on the slurry conveying pipe (8) from bottom to top.
4. The pile bottom post-grouting pressurizing device for the cast-in-situ bored pile as claimed in claim 1, wherein: the drain pipe (13) is provided with a drain valve (12).
5. The pile bottom post-grouting pressurizing device for the cast-in-situ bored pile as claimed in claim 1, wherein: two ends of the high-pressure resistant corrugated pipe (20) are respectively sleeved and connected to the opposite end parts of the fixed sleeve (19) and the sliding sleeve (21), and a water cavity is formed between the fixed sleeve (19) and the sliding sleeve (21); the water pipe (2) is arranged on the fixing sleeve (19) in a penetrating way, and the water outlet of the water pipe (2) is communicated with the water cavity; the mud jacking pipe (16) is arranged in the fixed sleeve (19) and the sliding sleeve (21) in a penetrating way, and a mud outlet of the mud jacking pipe (16) is arranged below the sliding sleeve (21); the sliding sleeve (21) is connected with the mud jacking pipe (16) in a sliding way; the water inlet of the drain pipe (13) is positioned at the bottom of the water cavity.
6. The pile bottom post-grouting pressurizing device for the cast-in-situ bored pile as claimed in claim 1, wherein: and a sealing gasket (22) is arranged at the bottom of the sliding sleeve (21).
7. The pile bottom post-grouting pressurizing device for the cast-in-situ bored pile as claimed in claim 1, wherein: the lower end of the grouting pipe (17) is provided with a grout discharging hole (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220865656.XU CN217480166U (en) | 2022-04-13 | 2022-04-13 | Pile bottom post-grouting pressurizing device for cast-in-situ bored pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220865656.XU CN217480166U (en) | 2022-04-13 | 2022-04-13 | Pile bottom post-grouting pressurizing device for cast-in-situ bored pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217480166U true CN217480166U (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220865656.XU Active CN217480166U (en) | 2022-04-13 | 2022-04-13 | Pile bottom post-grouting pressurizing device for cast-in-situ bored pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217480166U (en) |
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2022
- 2022-04-13 CN CN202220865656.XU patent/CN217480166U/en active Active
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