CN214783945U

CN214783945U - Pre-buried formula tubular pile slip casting device

Info

Publication number: CN214783945U
Application number: CN202120222990.9U
Authority: CN
Inventors: 关则灏; 周开达; 林善科
Original assignee: Yangjiang No4 Construction Engineering Co ltd
Current assignee: Yangjiang No4 Construction Engineering Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-11-19
Anticipated expiration: 2031-01-26

Abstract

The application relates to a pre-buried formula tubular pile slip casting device belongs to the technical field of tubular pile construction, and it includes: the tubular pile, a slip casting section of thick bamboo is installed to the tubular pile bottom, slip casting bobbin top end is fixed with the roof, the roof is fixed mutually with the tubular pile bottom, the bottom mounting of slip casting section of thick bamboo has the bottom plate, slip casting section of thick bamboo perisporium evenly runs through and has seted up a plurality of slip casting holes, be provided with the slip casting pipe that is linked together with the slip casting hole in the slip casting section of thick bamboo, the roof runs through and has seted up the through-hole, install the slip casting pipe on the roof, the one end of slip casting pipe is passed the through-hole and is connected with the slip casting pipe, the other end of slip casting pipe passes the tubular pile and extends to ground and be provided with the slip casting pump, the slip casting section of thick bamboo intussuseption is filled with concrete and is packed, wherein, be provided with the contrary subassembly that is used for one-way slip casting in the slip casting pipe. This application can block up the slip casting hole before slip casting operation steadily, possesses good one-way slip casting effect.

Description

Pre-buried formula tubular pile slip casting device

Technical Field

The application relates to the technical field of tubular pile construction, in particular to a pre-buried tubular pile grouting device.

Background

With the large-scale development of high-rise buildings in China, increasingly more construction projects are provided by adopting precast tubular piles as engineering piles, the precast tubular piles have the advantages of short construction period, high construction speed, low unit bearing capacity cost and the like, after the tubular piles are pressed into a preset depth through a static pressure machine, a certain gap exists between a pile hole and the tubular piles, and a grouting device is generally additionally arranged for reinforcing the compactness of the tubular piles and surrounding soil.

The pre-buried grouting device is characterized in that a grouting pipeline is pre-buried at the bottom of a pipe pile, after concrete is poured in the pipe pile, cement slurry is sprayed out from a grouting hole of the grouting pipeline by using a grouting pump, so that a gap between the pile hole and the pipe pile is filled with the cement slurry, the cement slurry can permeate into soil around a virtual tip of the pile end and is solidified to form a pile structure with higher strength, and therefore the bearing area of the pile end is increased.

In view of the related art in the above, the inventors consider that there are drawbacks in that: the method for blocking the grouting hole is simple and crude at present, and the piston and the adhesive tape are easy to fall off in the pile pressing process, so that soil foreign matters enter the grouting channel from the grouting hole and block grouting operation.

SUMMERY OF THE UTILITY MODEL

In order to improve above-mentioned technical problem, the application provides a pre-buried formula tubular pile slip casting device, can stably block up the slip casting hole before slip casting operation, possesses good one-way slip casting effect.

The application provides a pair of pre-buried formula tubular pile slip casting device adopts following technical scheme:

the utility model provides a pre-buried formula tubular pile slip casting device, includes the tubular pile, a slip casting section of thick bamboo is installed to the tubular pile bottom, slip casting bobbin top is fixed with the roof, the roof with the tubular pile bottom is fixed mutually, the bottom mounting of a slip casting section of thick bamboo has the bottom plate, a plurality of slip casting holes have evenly been run through to slip casting section of thick bamboo perisporium, be provided with in the slip casting section of thick bamboo with the slip casting pipe that the slip casting hole is linked together, the roof runs through and has seted up the through-hole, install the slip casting pipe on the roof, the one end of slip casting pipe is passed the through-hole with the slip casting pipe is connected, the other end of slip casting pipe passes the tubular pile extends to ground and is provided with the slip casting pump, the fill of a slip casting section of thick bamboo has concrete filler, wherein, be provided with the contrary subassembly that is used for one-way slip casting in the slip casting pipe.

By adopting the technical scheme, the grouting cylinder is pressed into and embedded at the bottom of the pile end by the tubular pile, when grouting operation is needed, a grouting pump is started to input cement slurry into the grouting pipe, then the cement slurry is sprayed out of the injection hole from the inside of the injection pipe through the non-return component in the grouting guide pipe, so that the cement slurry is injected and filled into gaps between the pile end and the pile hole, the bearing capacity of the pile end and the pile side is reinforced, the non-return component plays a role in blocking rock soil from entering the grouting pipe in the pile pressing process, and grouting is facilitated to be carried out more smoothly.

Preferably, the backstop assembly comprises: fix the spacing of slip casting pipe inner wall to and the coupling is in be used for covering of slip casting downthehole wall the flabellum in slip casting hole, wherein, the flabellum periphery is provided with the sheet rubber that is used for inseparable closed slip casting hole of flabellum, the flabellum is located spacing is close to one side in slip casting hole, just the pivot of flabellum with spacing is mutually perpendicular.

Through adopting above-mentioned technical scheme, the sheet rubber and the inseparable laminating of slip casting pipe inner wall of flabellum, play sealed effect, and the flabellum hub connection is at slip casting pipe inner wall, make and press the difficult drop of stake in-process flabellum, when ground pressure is to the flabellum, the inboard of flabellum receives spacing conflict, make the flabellum airtight in order to cover the injected hole all the time, thereby make the difficult entering grouting section of thick bamboo of side ground, when the slip casting operation of beginning, cement thick liquid receives the high-pressure injection of grouting pump and spurts the flabellum, make the flabellum outwards open, and then make cement thick liquid can follow the injected hole outwards and inject and go out.

Preferably, the backstop assembly comprises: the mounting ring is fixed on the inner wall of the grouting guide pipe, the spring is mounted at one end, close to the grouting hole, of the mounting ring, and the cover plate is mounted at one end, far away from the mounting ring, of the spring and used for covering the grouting hole, wherein the cover plate is tightly attached to the outer side wall of the grouting cylinder.

Through adopting above-mentioned technical scheme, the cover plate is connected in the slip casting pipe by the spring, and the cover plate lid is established outside the slip casting hole, makes the ground of slip casting hole side can not get into a slip casting section of thick bamboo, and when the slip casting operation that begins, cement thick liquid bursts the cover plate, and the spring receives the effort and outwards stretches to make the cover plate outwards remove, cement thick liquid can follow the slip casting hole and outwards spray.

Preferably, the periphery of the grouting hole is provided with a sinking groove capable of accommodating the cover plate, and the cover plate is tightly attached to the outer side wall of the sinking groove.

Through adopting above-mentioned technical scheme, the cover plate is taken in and is sunk the groove, makes the pile pressing in-process difficult ground by side lift to make the cover plate can cover the injected hole more firmly.

Preferably, a guide rod is fixed on the end face of the mounting ring, a piston rod is assembled in the guide rod, one end, far away from the guide rod, of the piston rod is connected with the cover plate, and the spring is sleeved on the guide rod and the piston rod.

Through adopting above-mentioned technical scheme, make the cover plate can receive the spacing of guide arm and piston rod, improve the connection stability of cover plate in the slip casting pipe, avoid because of the cover plate takes place because of the impaired condition of intercrossing between the spring that the stirring of ground leads to.

Preferably, a guard plate is horizontally fixed on the outer wall of the grouting cylinder, the guard plate is located below the grouting hole, and one end, far away from the grouting cylinder, of the guard plate vertically extends upwards to the horizontal upper side of the grouting hole.

Through adopting above-mentioned technical scheme, the backplate can play certain supporting role, makes the difficult directness of ground of a slip casting section of thick bamboo side in the pile pressing process extrude to the slip casting hole to the pressure that the contrary subassembly was opened outwards when having reduced the slip casting has improved the smooth and easy degree of slip casting operation.

Preferably, the bottom surface of the bottom plate is provided with a pile tip.

Through adopting above-mentioned technical scheme, pile tip plays certain guide effect among the pile pressing process to receive the effort of ground when having reduced slip casting barrel head board pile pressing, thereby can make the difficult deformation of slip casting section of thick bamboo, do benefit to subsequent slip casting operation.

Preferably, a support rib is arranged between the top plate and the bottom plate, and the side end of the support rib is fixed on the outer wall of the grouting barrel.

Through adopting above-mentioned technical scheme, further improved a slip casting section of thick bamboo intensity, made a slip casting section of thick bamboo have better bearing capacity, be difficult for damaging the deformation at the pile pressing in-process, the smooth operation of guarantee follow-up slip casting.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the grouting cylinder is arranged at the bottom of the tubular pile, so that cement mortar can be introduced into the grouting pipe in the tubular pile by the grouting pump after the tubular pile is pressed into the ground, then the cement mortar is conveyed into the grouting guide pipe in the grouting cylinder, and finally the cement mortar is injected from the grouting hole to the outside of the pile end, so that the pile end and the pile side of the tubular pile are filled with the cement mortar to be reinforced, and the check assembly arranged in the grouting cylinder can be stably arranged at the inner side of the grouting hole and is not easy to fall off, so that the effect of preventing rock and soil from entering the grouting cylinder from the grouting hole in the pile pressing process is achieved, and smooth grouting is facilitated;

2. the limiting strips and the fan blades are arranged, so that the grouting holes can be well covered by the fan blades, the rubber sheets are attached to the peripheries of the fan blades, the friction force between the fan blades and the grouting guide pipe can be increased, the fan blades can tightly cover the grouting holes, the limiting strips can enable the fan blades to be opened in one direction only during grouting, and rock soil cannot enter the grouting barrel through the fan blades in the pile pressing process;

3. through setting up cover plate, collar and spring, can make the cover plate only can one-way open when the slip casting equally, prevent ground to a great extent during a pile pressing in-process extrudes into a slip casting section of thick bamboo, improve the smooth and easy degree of slip casting.

Drawings

FIG. 1 is a schematic view of the overall structure in embodiment 1 of the present application;

FIG. 2 is a schematic view of a split structure in example 1 of the present application;

FIG. 3 is a sectional view in the present application in example 1;

FIG. 4 is a schematic view showing the construction of a backstop assembly in embodiment 1 of the present application;

fig. 5 is a schematic structural view of a backstop assembly in embodiment 2 of the present application.

Description of reference numerals: 1. a tubular pile; 2. grouting pump; 21. a grouting pipe; 22. a diverter tray; 3. a grouting cylinder; 31. a top plate; 32. a base plate; 321. pile tip; 33. grouting holes; 34. a guard plate; 35. concrete filler; 36. a support rib; 4. a grouting guide pipe; 41. a limiting strip; 42. a fan blade; 421. a rubber sheet; 43. a mounting ring; 44. a guide bar; 441. a piston rod; 45. a spring; 46. a cover sheet; 47. and (5) sinking the tank.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses pre-buried formula tubular pile slip casting device.

Example 1:

referring to fig. 1, fig. 2, a pre-buried formula tubular pile slip casting device, including tubular pile 1 and wear to establish slip casting pipe 21 in tubular pile 1, subaerial slip casting pump 2 that is provided with on one side at tubular pile 1, slip casting pipe 21 extends to the one end on ground in tubular pile 1 and is connected with slip casting pump 2, installs a slip casting section of thick bamboo 3 in the bottom of

tubular pile

1, and 3 top welds of a slip casting section of thick bamboo have roof 31, and roof 31 passes through flange joint back welded fastening with 1 bottom of tubular pile.

As shown in fig. 2 and 3, a through hole for inserting the grouting pipe 21 is formed through the center of the top plate 31, the diverter plate 22 is communicated below the through hole of the top plate 31, four grouting pipes 4 are hermetically connected to the side end of the diverter plate 22, a plurality of grouting holes 33 are uniformly distributed through the circumferential wall of the grouting cylinder 3, and the grouting holes 33 are communicated with the grouting pipes 4, so that the grouting pump 2 can inject the cement slurry out through the grouting pipe 21, the diverter plate 22 and the grouting pipes 4 and finally through the grouting holes 33.

Wherein, a slip casting section of thick bamboo 3 intussuseption is filled with concrete and is filled 35 in order to improve the bearing strength of a slip casting section of thick bamboo 3, bottom plate 32 has been fixed in the bottom welded of a slip casting section of thick bamboo 3, stake point 321 is still installed to bottom plate 32's bottom surface, in this embodiment, stake point 321 is flat cross, and stake point 321 and bottom plate 32 integrated into one piece, stake point 321 can play the guide effect at the pile pressing in-process, and can reduce the destruction that receives in the time of 3 pile pressing of a slip casting section of thick bamboo, in addition, it has support rib 36 still to weld vertically at the outer wall of a slip casting section of thick bamboo 3, support rib 36's both ends welded fastening is on roof 31 and bottom plate 32, improve the rigidity of a slip casting section of thick bamboo 3, thereby make pile pressing and slip casting process more smooth.

Because the rock soil in the pile hole easily enters the grouting cylinder 3 from the grouting hole 33 in the pile pressing process to influence the subsequent grouting operation, the non-return assembly is arranged in the grouting guide pipe 4, so that the cement slurry can only be grouted outwards from the grouting hole 33, and foreign matters outside the grouting hole 33 cannot enter the grouting cylinder 3 from the grouting hole 33, thereby ensuring that the subsequent grouting is not easily influenced by a blockage.

In this embodiment, referring to fig. 3 and 4, the non-return assembly includes a limiting strip 41 and a fan blade 42, the fan blade 42 is two semicircular blades, the rubber sheet 421 is attached to the peripheral ends of the two fan blades 42, so that the fan blade 42 can seal and cover the hole of the grouting hole 33, the diameter ends of the two fan blades 42 are axially connected to the central position of the inner wall of the grouting pipe 4, the limiting strip 41 is welded and fixed to the inner wall of the grouting pipe 4, the limiting strip 41 is located on one side edge of the fan blade 42 away from the grouting hole 33, the limiting strip 41 is perpendicular to the rotating shaft of the fan blade 42, the inner side of the fan blade 42 is abutted by the limiting strip 41, so that the fan blade 42 can only be opened outwards, thereby realizing the effect of unidirectional grouting.

For reducing the pile pressing in-process lateral wall earthwork and compress tightly the compaction back and cause the influence to slip casting pressure, the horizontal welding has backplate 34 on the 3 lateral walls of slip casting section of thick bamboo, the side view of backplate 34 is "L" type, the fixed welding of the horizontal end of backplate 34 is in the below position department of slip casting hole 33, the top surface of the vertical end of backplate 34 is higher than the top level of slip casting hole 33, thereby make slip casting hole 33 can receive the shield effect of backplate 34 certain degree, smooth and easy degree when improving the slip casting.

Example 2:

the present embodiment is different from embodiment 1 in that the non-return assembly includes, as shown in fig. 5, a mounting ring 43 fixedly mounted on the inner wall of the grouting guide 4, a guide rod 44 fixed on an end surface of the mounting ring 43 near the grouting hole 33, a blind groove formed at an end portion of the guide rod 44 near the grouting hole 33, a piston rod 441 mounted on the blind groove and enabling the piston rod 441 to slide in the guide rod 44, a cover plate 46 connected to an end of the piston rod 441 far from the guide rod 44, a spring 45 sleeved on an outer periphery of the piston rod 441 and the guide rod 44, one end of the spring 45 connected to the mounting ring 43 and the other end connected to the cover plate 46, and the cover plate 46 movably mounted on the grouting guide 4 under the control of the spring 45.

Meanwhile, a sinking groove 47 is formed in the grouting cylinder 3 at the periphery of the grouting hole 33, the cover plate 46 is located in the sinking groove 47, the end face of the cover plate 46 is tightly attached to the outer side wall of the sinking groove 47 in a slightly stretched state of the spring 45, so that the grouting hole 33 can be covered by the cover plate 46, and foreign matters such as rock soil outside the grouting hole 33 cannot easily enter the grouting cylinder 3.

When the pile pressing is finished and grouting is needed, the grouting pump 2 injects cement slurry into the grouting guide pipe 4, the high-pressure cement slurry tension spring 45 enables the cover piece 46 to move outwards, and the cover piece 46 is separated from the grouting hole 33 and then enables the cement slurry to be injected outwards, so that grouting operation is conducted.

The above are all preferred embodiments of the present application, and the present embodiment is only explained for the present application, and the protection scope of the present application is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A pre-buried tubular pile grouting device comprises a tubular pile and is characterized in that a grouting cylinder is installed at the bottom of the tubular pile, a top plate (31) is fixed at the top end of the grouting cylinder, the top plate (31) is fixed with the bottom end of the tubular pile, a bottom plate (32) is fixed at the bottom end of the grouting cylinder, a plurality of grouting holes (33) are uniformly formed in the circumferential wall of the grouting cylinder in a penetrating manner, a grouting guide pipe communicated with the grouting hole (33) is arranged in the grouting cylinder, a through hole is arranged in the top plate (31) in a penetrating way, a grouting pipe (21) is arranged on the top plate (31), one end of the grouting pipe (21) penetrates through the through hole to be connected with the grouting guide pipe, the other end of the grouting pipe (21) penetrates through the tubular pile to extend to the ground and is connected with a grouting pump, concrete filler (35) is filled in the grouting cylinder, wherein a non-return component for unidirectional grouting is arranged in the grouting guide pipe.

2. The pre-buried pipe pile grouting device according to claim 1, wherein the non-return assembly comprises: fix spacing (41) of slip casting pipe inner wall to and the hub joint be used for of slip casting hole (33) inner wall to cover flabellum (42) of slip casting hole (33), wherein, flabellum (42) periphery is provided with and is used for the rubber sheet (421) with flabellum (42) inseparable closed slip casting hole (33), flabellum (42) are located spacing (41) are close to one side of slip casting hole (33), just the pivot of flabellum (42) with spacing (41) are mutually perpendicular.

3. The pre-buried pipe pile grouting device according to claim 1, wherein the non-return assembly comprises: the grouting device comprises a mounting ring (43) fixed on the inner wall of the grouting guide pipe, a spring (45) mounted at one end, close to the grouting hole (33), of the mounting ring (43), and a cover plate (46) mounted at one end, far away from the mounting ring (43), of the spring (45) and used for covering the grouting hole (33), wherein the cover plate (46) is tightly attached to the outer side wall of the grouting barrel.

4. The pre-buried tubular pile grouting device according to claim 3, wherein a sinking groove (47) is formed in the periphery of the grouting hole (33), and the cover plate (46) is tightly attached to the outer side wall of the sinking groove (47).

5. The pre-buried tubular pile grouting device according to claim 3, wherein a guide rod (44) is fixed on an end surface of the mounting ring (43), a piston rod (441) is assembled in the guide rod (44), one end of the piston rod (441) far away from the guide rod (44) is connected with the cover plate (46), and the guide rod (44) and the piston rod (441) are sleeved with the spring (45).

6. The pre-buried pipe pile grouting device according to claim 1, wherein a protective plate (34) is horizontally fixed on the outer wall of the grouting cylinder, the protective plate (34) is located below the grouting hole (33), and one end, far away from the grouting cylinder, of the protective plate (34) vertically extends upwards to a position above the level of the grouting hole (33).

7. An embedded pipe pile grouting device according to claim 1, characterized in that the bottom surface of the bottom plate (32) is provided with a pile tip (321).

8. The pre-buried pipe pile grouting device according to claim 1, wherein a support rib (36) is arranged between the top plate (31) and the bottom plate (32), and the side end of the support rib (36) is fixed on the outer wall of the grouting cylinder.