Pile tip and pile side integral post-grouting construction device and method

Abstract

The invention provides a pile end and pile side integral post-grouting construction device and method. The pile end and pile side integral post-grouting construction device comprises a sounding pipe, a plurality of vertically arranged pile side grouting pipes are arranged on the side face of the sounding pipe, an openable pile end grouting plug is arranged at the bottom end of the sounding pipe, and a sealing film is arranged at a grout outlet of each pile side grouting pipe; and the bead type mud jacking device can be inserted into the sounding pipe, a plurality of independent mud jacking cavities corresponding to the pile end mud jacking plugs and all the pile side mud jacking pipes respectively are formed in the sounding pipe, and mud jacking is conducted on the pile end mud jacking plugs and all the pile side mud jacking pipes. The sounding pipe can be used as a mud jacking pipe required by mud jacking, the requirement for additionally arranging the mud jacking pipe is reduced in the construction process, therefore, the material use amount and the construction cost are reduced, meanwhile, the convenience and efficiency of mud jacking operation are improved, the string bead type mud jacking device inserted into the sounding pipe is matched, overall mud jacking of the pile side and the pile end is achieved, the mud jacking time is saved, and the construction efficiency is improved. And an effective shell is formed at the pile side and the pile end and is tightly engaged with a surrounding soil layer, so that an effective integral pile foundation shell is formed.

Description

Technical Field

[0001] The present invention relates to the field of post-grouting construction, and in particular to a pile end and pile side integral post-grouting construction device and method thereof. Background Art

[0002] As bridge construction develops toward larger spans and buildings toward taller heights, the first and most critical step in the construction of large-span bridges and tall buildings is foundation preparation. my country has a vast land area and complex geological conditions. For example, in areas such as the North China Plain, the Loess Plateau in Northwest China, and the Mesopotamian Basin, where the overburden is thick, large-span bridges and tall buildings lack a reliable bearing layer. Consequently, they are often designed with friction pile foundations, which are constructed using bored cast-in-place piles. The unique construction process of bored cast-in-place piles creates a "resistance-reducing" effect from the mud skin around the friction piles and a "softening cushion" effect from the sediment at the bottom of the hole, impacting the design of permanent structures. Developed in 1993 by the Foundation Research Institute of the China Academy of Building Research, these technologies include post-grouting at the bottom and side of the piles to reinforce the sediment, mud skin, and a specific area of ​​soil within the piles, thereby increasing the bearing capacity of individual piles and reducing settlement.

[0003] The existing post-grouting technology of pile foundation is divided into combined post-grouting technology and distributed post-grouting technology. In the combined post-grouting technology, the grouting of the pile bottom and the pile side of each layer requires an additional grouting pipe extending out of the pile head, which is labor-intensive and wastes a lot of steel, and is not conducive to energy conservation and environmental protection; the distributed post-grouting technology uses an acoustic detection tube without an additional grouting pipe, and is relatively simple to operate. Grouting needs to be carried out step by step by root and layer, and after each grouting is completed, it is necessary to wait for about 30 minutes before the next grouting step is carried out. The construction period is relatively long. In addition, since the circumferential grouting of the same section is carried out in steps, there are differences in time, and it cannot be completed before the slurry begins to set, which is not conducive to the formation of an effectively combined pile foundation shell, and is not conducive to the upward return, sinking, and peripheral diffusion of the cement slurry. Therefore, a pile end and pile side integral post-grouting construction device and method are proposed to solve the above problems. Summary of the Invention

[0004] The main purpose of the present invention is to provide an integral post-grouting construction device and method for pile ends and pile sides, so as to solve the problems in the prior art that the combined post-grouting construction has a large workload and serious material waste; the distributed post-grouting construction efficiency is low, and the annular grouting cannot form an effectively combined pile foundation shell, which cannot fully improve the grouting effect.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a pile end and pile side integral post-grouting construction device and method thereof, comprising The acoustic detection pipe has multiple vertically arranged pile side grouting pipes on its side, an openable pile end grouting plug at its bottom, and a sealing membrane at the grouting outlet of the pile side grouting pipe; The beaded grouting device can be inserted into the acoustic detection tube, and form multiple independent grouting cavities corresponding to the pile end grouting plug and all pile side grouting pipes, and grout the pile end grouting plug and all pile side grouting pipes.

[0006] In the preferred embodiment, the beaded grouting device includes an outer rod that can be inserted into the acoustic detection tube. A gap for grouting is preset between the outer rod and the acoustic detection tube. A plurality of expandable capsules are arranged on the outside of the outer rod. Independent grouting cavities are formed by the distance between the expandable capsules and between the lowest expandable capsule and the pile end grouting plug.

[0007] In a preferred embodiment, a plurality of clustered pipeline delivery groups are provided inside the outer rod, and the number of the pipeline delivery groups corresponds to the number of expandable capsules; The pipeline transportation group consists of an expansion pipeline and a grouting pipeline, wherein the output end of the expansion pipeline passes through the outer rod and extends into the corresponding expandable capsule, and the output end of the grouting pipeline passes through the outer rod and is located below the corresponding expandable capsule.

[0008] In the preferred embodiment, the input ends of the expansion pipe and the grouting pipe extend from the opening at the top of the outer rod and are connected to the expansion device and the grouting pump respectively; The expansion pipe of each pipeline transportation group is individually connected to a grouting pump.

[0009] In a preferred embodiment, a groove is provided on the outside of the outer rod, and the expandable capsule is arranged in the groove.

[0010] In the preferred embodiment, the pile end grouting plug includes a telescopic cylinder inserted into the bottom end of the acoustic detection tube by friction, a telescopic limit ring is provided at the top edge of the telescopic cylinder, and a limit sliding groove that slides with the telescopic limit ring is provided on the inner wall surface of the acoustic detection tube. A plurality of connecting blocks are provided in an annular shape at the bottom end of the telescopic cylinder, and a conical head that is wide at the top and narrow at the bottom is connected to the other end of the connecting block. The maximum outer diameter of the conical head is the same as the outer diameter of the bottom end of the acoustic detection tube, and a sealing ring is provided at the connection between the two. Grouting ports for grouting are formed between the connecting blocks. An expansion sealing ring is provided on the bottom wall of the limiting sliding groove.

[0011] In a preferred embodiment, a tapered opening that is wider at the top and narrower at the bottom is provided on the inner side of the top of the telescopic cylinder.

[0012] In a preferred embodiment, the bottom end of the outer rod is closed and can impact the top of the conical head.

[0013] In the preferred embodiment, the expansion sealing ring includes a rubber sealing ring with a hollow interior, an anti-drying and easy-opening layer is provided on the inner wall surface of the rubber sealing ring, a sealing adhesive is provided in the anti-drying and easy-opening layer, and multiple glue outlets are provided on the top and inner side of the rubber sealing ring.

[0014] The method includes: S1. Install bored piles using conventional construction technology; S2. Install the required number of acoustic detection tubes on the steel cage and lower them into the hole; S3, pouring bored pile concrete and installing conventional technology for acoustic testing; S4. Place a beaded grouting device in each acoustic testing tube, and connect the expansion pipe and grouting pipe to the expansion device and grouting pump respectively; S5. Using an expansion device to expand each expandable capsule of the beaded grouting device, and through squeezing with the interior of the acoustic detection tube, forming multiple independent grouting cavities corresponding to the pile end grouting plug and all pile side grouting pipes, then using a grouting pump and a grouting pipe to grout the pile side grouting pipes or pile end grouting plugs in the multiple independent grouting cavities, and selecting different grouting pressures according to the parameters of each formation; S6. Stop grouting when the designed grouting pressure or 90% of the designed grouting volume is reached. Maintain the pressure until the concrete begins to set and then release the pressure. Simultaneously, release the pressure from the expandable capsule. Then pull out the beaded grouting device and seal the acoustic detection tube with grouting to complete the post-grouting of the pile foundation.

[0015] The present invention provides a pile end and pile side integral post-grouting construction device and method thereof, which can utilize the acoustic detection tube as the grouting tube required for grouting, expand its function as a grouting pipeline, thereby reducing the need for additional grouting tubes during construction, thereby reducing material usage and construction costs, and improving the convenience and efficiency of grouting operations. At the same time, by utilizing the pile side grouting tubes and pile end grouting plugs provided on multiple acoustic detection tubes, in conjunction with a beaded grouting device inserted therein, integral grouting of the pile side and pile end is achieved, saving grouting time, and improving the supporting force effect of the pile bottom, and forming an effective shell on the pile side that tightly bites into the surrounding soil layer to form an effective integral pile foundation shell, and the structural system is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and examples: Figure 1 It is a structural diagram of the acoustic detection tube of the present invention; Figure 2 This is a cross-sectional view of the acoustic detection tube structure of the present invention; Figure 3 This is a structural diagram of the beaded grouting device of the present invention; Figure 4 This is a top view of the structure of the beaded grouting device of the present invention; Figure 5 This is a structural diagram of the outer rod of the present invention; Figure 6 This is a half-section diagram of the structure of the beaded grouting device of the present invention; Figure 7This is a half-section diagram of the connection structure of a portion of the pipeline delivery group of the present invention; Figure 8 This is a structural diagram of the pile end grouting plug of the present invention; Figure 9 This is a half-section diagram of the connection structure between the pile end grouting plug and the acoustic detection pipe of the present invention; Figure 10 This is a cross-sectional view of the expanded sealing ring structure of the present invention; Figure 11 This is a top view of the connection structure between the steel cage and the acoustic detection tube of the present invention; Figure 12 It is a schematic diagram of the insertion of the beaded grouting device of the present invention.

[0017] In the figure: steel cage 1; acoustic detection tube 2; limiting sliding groove 2010; expansion sealing ring 2011; rubber sealing ring 2012; anti-drying and easy-opening layer 2013; sealing adhesive 2014; glue outlet 2015; pile side grouting pipe 202; pile end grouting plug 203; telescopic cylinder 2030; telescopic limiting ring 2031; connecting block 2032; conical head 2033; grouting port 2034; conical port 2035; beaded grouting device 3; outer rod 301; groove 3010; expandable capsule 302; pipeline conveying group 303; expansion pipeline 3030; grouting pipeline 3031. DETAILED DESCRIPTION

[0018] Example 1 like Figure 1-12 As shown, a pile end and pile side integral post-grouting construction device includes an acoustic detection tube 2 and a beaded grouting device 3, wherein: The acoustic detection tube 2 has a plurality of vertically arranged pile side grouting pipes 202 on its side. The pile side grouting pipes 202 are distributed along a vertical line on the side of the acoustic detection tube 2. The specific number and spacing are determined according to the number of strata to be grouted. An openable pile end grouting plug 203 is provided at the bottom end. A sealing membrane is provided at the grouting outlet of the pile side grouting pipe 202. The sealing membrane is a film or a rubber mold. When the grouting pressure reaches a certain level, it will rupture due to pressure. The bottom end of the acoustic detection tube 2 and the grouting outlet of the pile side grouting pipe 202 can be temporarily sealed by the pile end grouting plug 203 and the sealing membrane, so that the acoustic detection work can be carried out normally. At the same time, it can be opened to achieve the grouting effect when grouting is carried out.

[0019] Such a design not only maintains the original ultrasonic detection function of the acoustic detection tube 2 for detecting the integrity and quality of the bored piles, but also expands its function as a grouting pipe, thereby reducing the need for additional grouting pipes during the construction process, thereby reducing material usage and construction costs, and improving the convenience and efficiency of grouting operations.

[0020] The beaded grouting device 3 can be inserted into the acoustic detection tube 2, and form a plurality of independent grouting cavities corresponding to the pile end grouting plug 203 and all pile side grouting pipes 202 respectively, and grout the pile end grouting plug 203 and all pile side grouting pipes 202, thereby realizing the overall grouting of the pile end and pile side. At the same time, by forming an independent grouting cavity and grouting the corresponding pile side grouting pipe 202 or pile end grouting plug 203 therein, the grouting pressure of each pile side grouting pipe 202 or pile end grouting plug 203 can be ensured, thereby avoiding the influence of uneven pressure distribution on the grouting quality.

[0021] Furthermore, the beaded grouting device 3 includes an outer rod 301 that can be inserted into the acoustic detection tube 2. A gap for grouting is preset between the outer rod 301 and the acoustic detection tube 2. A plurality of expandable capsules 302 are provided on the outside of the outer rod 301. Independent grouting cavities are formed by the distances between the expandable capsules 302 and between the lowest expandable capsule 302 and the pile end grouting plug 203.

[0022] It should be noted that, after the outer rod 301 is inserted into the acoustic detection tube 2, a pile side grouting pipe 202 is distributed between every two expandable capsules 302, thereby utilizing the space between the two expanded expandable capsules 302 to form an independent grouting cavity corresponding to the pile side grouting pipe 202; the expandable capsule 302 located at the bottom is located above the pile end grouting plug 203, and utilizes the space between the pile end grouting plug 203 and the expanded expandable capsule 302 to form an independent grouting cavity corresponding to the pile end grouting plug 203.

[0023] Furthermore, a plurality of clustered pipe delivery groups 303 are provided inside the outer rod 301 . The number of the pipe delivery groups 303 corresponds to the expandable capsules 302 , and each of the plurality of pipe delivery groups 303 corresponds to one expandable capsule 302 .

[0024] It should be noted that the pipe conveying group 303 on the outside corresponds to the expandable capsule 302 above, and the pipe conveying group 303 on the inside corresponds to the expandable capsule 302 below one by one. The clustered arrangement can utilize a compact space to install multiple pipe conveying groups 303, while also ensuring the stability of the installation between the pipe conveying groups 303.

[0025] Furthermore, the pipeline transportation group 303 is composed of an expansion pipeline 3030 and a grouting pipeline 3031, wherein the output end of the expansion pipeline 3030 passes through the outer rod 301 and extends to the corresponding expandable capsule 302. The expansion pipeline 3030 expands the expandable capsule 302 by transporting water or gas into the expandable capsule 302. In this embodiment, water is preferably used. The output end of the grouting pipeline 3031 passes through the outer rod 301 and is located below the corresponding expandable capsule 302, so that the slurry can be transported to the formed independent grouting cavity through the grouting pipeline 3031.

[0026] It should be noted that the grouting liquid can be cement slurry, water glass slurry or a combination of slurries.

[0027] Furthermore, the input ends of the expansion pipe 3030 and the grouting pipe 3031 extend from the opening at the top of the outer rod 301 and are respectively connected to an expansion device and a grouting pump. The expansion device can be a water pump or an air pump. In this embodiment, a water pump is preferred.

[0028] The expansion pipe 3030 of each pipeline delivery group 303 is individually connected to a grouting pump, so that the delivery pressure of each pipeline delivery group 303 can be controlled by a separate grouting pump, so that a grouting pressure that matches different bottom layers can be set.

[0029] There can be one or more water pumps.

[0030] In the preferred embodiment, a groove 3010 is provided on the outside of the outer rod 301, and the expandable capsule 302 is provided in the groove 3010, so that the shape of the groove 3010 can be used to fix the expandable capsule 302 from three sides, thereby improving the stability of the connection with the expandable capsule 302. At the same time, when in an unexpanded state, it can be stored in the groove 3010 and flush with the outer wall surface of the outer rod 301, which is convenient for transportation and insertion during use. In addition, after grouting is completed, it can be stored in the groove 3010 to reduce contact with the initial setting grouting liquid during the lifting process.

[0031] In the preferred embodiment, the pile end grouting plug 203 includes a telescopic cylinder 2030 inserted into the bottom end of the acoustic detection tube 2 by friction, a telescopic limit ring 2031 is provided at the top edge of the telescopic cylinder 2030, and a limit sliding groove 2010 is provided on the inner wall surface of the acoustic detection tube 2 for sliding cooperation with the telescopic limit ring 2031. The length of the limit sliding groove 2010 should meet the extension length requirement of the pile end grouting plug 203. A plurality of connecting blocks 2032 are provided in an annular manner at the bottom end of the telescopic cylinder 2030. In this embodiment, the number of the connecting blocks 2032 is four, etc. The distance is set at the bottom end of the telescopic cylinder 2030, and the other end of the connecting block 2032 is connected to a conical head 2033 that is wide at the top and narrow at the bottom. The design of the conical head 2033 is convenient for penetrating into the soil after being subjected to pressure. The maximum outer diameter of the conical head 2033 is the same as the outer diameter of the bottom end of the acoustic detection tube 2, and a sealing ring is provided at the connection between the two to ensure the sealing when the two are connected, so as to avoid affecting the normal use of the acoustic detection tube 2. A grouting port 2034 for grouting is formed between the connecting blocks 2032. In this solution, the pile end grouting plug 203 can be extended by grouting pressure.

[0032] An expansion sealing ring 2011 is provided on the bottom wall of the limiting sliding groove 2010, so that after the pile end grouting plug 203 is extended, the expansion sealing ring 2011 is squeezed by the telescopic limiting ring 2031 to achieve a sealing effect during grouting.

[0033] In a preferred embodiment, a tapered opening 2035 that is wider at the top and narrower at the bottom is provided on the inner side of the top of the telescopic cylinder 2030 , so that the grouting liquid can enter the telescopic cylinder 2030 more smoothly.

[0034] In another embodiment of the pile end grouting plug 203 being opened, the bottom end of the outer rod 301 is closed and can impact the top of the conical head 2033. With this design, the impact force generated by the contact between the beaded grouting device 3 and the top of the conical head 2033 can be utilized to extend the pile end grouting plug 203, thereby opening the grouting port 2034 and opening the corresponding grouting pressure, which is faster and more convenient. At the same time, the conical head 2033 can also be used to support and position the beaded grouting device 3, ensuring the stability of the beaded grouting device 3 when in use, and locating the specific position of the expandable capsule 302.

[0035] Furthermore, the unfolded sealing ring 2011 includes a rubber sealing ring 2012 with a hollow interior, an anti-drying and easy-opening layer 2013 is provided on the inner wall surface of the rubber sealing ring 2012, a sealing adhesive 2014 is provided in the anti-drying and easy-opening layer 2013, and a plurality of glue outlets 2015 are provided on the top and inner side of the rubber sealing ring 2012.

[0036] In this embodiment, the anti-drying and easy-opening layer 2013 is aluminum foil, and the sealing adhesive 2014 is one of epoxy resin adhesive, acrylic adhesive, polyurethane adhesive or silicone adhesive. The aluminum foil can prevent the sealing adhesive 2014 from drying out, thereby avoiding the sealing adhesive 2014 from drying out when not in use and maintaining fluidity.

[0037] With such a design, the impact force when the beaded grouting device 3 is lowered can be used to squeeze the unfolded sealing ring 2011, so that the sealing adhesive 2014 therein breaks through the anti-drying and easy-opening layer 2013 and flows out from the glue outlet 2015, thereby enhancing the sealing between the pile end grouting plug 203 and the acoustic testing pipe 2 after extension, and also bonding the two to avoid the pile end grouting plug 203 being squeezed from below after the grouting liquid is injected into the bottom, causing it to retract and affecting the grouting effect.

[0038] Example 2 Further illustrate with reference to Example 1, Figure 1-12 The structure shown in FIG. 1 uses a method for constructing a pile end and pile side integral post-grouting device as described in Example 1, the method comprising: S1. Install the bored piles using conventional construction technology.

[0039] S2. Install the acoustic detection tubes 2 in the number required for grouting construction on the steel cage 1 and lower them into the hole. The pile side grouting tubes 202 of the acoustic detection tubes 2 are all facing outwards, so that the overall grouting in the annular direction can be achieved.

[0040] S3. Pour the bored pile concrete and install the conventional process for acoustic testing.

[0041] S4. Place a beaded grouting device 3 in each acoustic testing tube 2, and connect the expansion pipe 3030 and the grouting pipe 3031 to the expansion device and the grouting pump respectively.

[0042] S5. Use the expansion device to expand each expandable capsule 302 of the beaded grouting device 3, and form multiple independent grouting cavities corresponding to the pile end grouting plug 203 and all pile side grouting pipes 202 through squeezing with the inside of the acoustic testing tube 2. Then use the grouting pump and grouting pipe 3031 to grout the pile side grouting pipe 202 or the pile end grouting plug 203 in the multiple independent grouting cavities, and select different grouting pressures according to the parameters of each formation.

[0043] S6. Stop grouting when the designed grouting pressure or 90% of the designed grouting volume is reached. Maintain the pressure until the concrete begins to set, then release the pressure. Simultaneously, release the pressure from the expandable capsule 302. Then pull out the beaded grouting device 3, grout the acoustic detection tube, and complete the post-grouting of the pile foundation. The acoustic detection tube is sealed with concrete slurry.

[0044] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A pile end and pile side integral post-grouting construction device, characterized in that: include An acoustic detection pipe (2), wherein a plurality of vertically arranged pile side grouting pipes (202) are arranged on the side of the acoustic detection pipe (2), an openable pile end grouting plug (203) is arranged at the bottom end, and a sealing membrane is arranged at the grouting outlet of the pile side grouting pipe (202); The beaded grouting device (3) can be inserted into the acoustic detection tube (2) and form a plurality of independent grouting cavities corresponding to the pile end grouting plug (203) and all pile side grouting pipes (202) respectively therein, and grouting is performed on the pile end grouting plug (203) and all pile side grouting pipes (202).

2. According to claim 1, a pile end and pile side integral post-grouting construction device is characterized by: The beaded grouting device (3) comprises an outer sleeve (301) that can be inserted into the acoustic detection tube (2), a gap for grouting is preset between the outer sleeve (301) and the acoustic detection tube (2), a plurality of expandable capsules (302) are arranged outside the outer sleeve (301), and an independent grouting cavity is formed by the spacing between the expandable capsules (302) and between the lowest expandable capsule (302) and the pile end grouting plug (203).

3. According to claim 2, a pile end and pile side integral post-grouting construction device is characterized by: A plurality of clustered pipeline delivery groups (303) are arranged inside the outer sleeve (301), and the number of the pipeline delivery groups (303) corresponds to the number of the expandable capsules (302); The pipeline transport group (303) consists of an expansion pipeline (3030) and a grouting pipeline (3031), wherein the output end of the expansion pipeline (3030) passes through the outer sleeve (301) and extends into the corresponding expandable capsule (302), and the output end of the grouting pipeline (3031) passes through the outer sleeve (301) and is located below the corresponding expandable capsule (302).

4. According to claim 3, a pile end and pile side integral post-grouting construction device is characterized by: The input ends of the expansion pipe (3030) and the grouting pipe (3031) both extend from the opening at the top of the outer sleeve rod (301) and are respectively connected to the expansion device and the grouting pump; The expansion pipeline (3030) of each pipeline transport group (303) is individually connected to a grouting pump.

5. A pile end and pile side integral post-grouting construction device according to any one of claims 2 to 4, characterized in that: A groove (3010) is provided on the outside of the outer sleeve (301), and the expandable capsule (302) is disposed in the groove (3010).

6. A pile end and pile side integral post-grouting construction device according to any one of claims 2 to 4, characterized in that: The pile end grouting plug (203) comprises a telescopic cylinder (2030) inserted into the bottom end of the acoustic detection tube (2) by friction, a telescopic limit ring (2031) is arranged at the top edge of the telescopic cylinder (2030), a limit sliding groove (2010) that slidably cooperates with the telescopic limit ring (2031) is arranged on the inner wall surface of the acoustic detection tube (2), a plurality of connecting blocks (2032) are arranged in an annular shape at the bottom end of the telescopic cylinder (2030), the other end of the connecting block (2032) is connected to a conical head (2033) that is wide at the top and narrow at the bottom, the maximum outer diameter of the conical head (2033) is the same as the outer diameter of the bottom end of the acoustic detection tube (2), a sealing ring is arranged at the connection between the two, and a grouting port (2034) for grouting is formed between the connecting blocks (2032); An expansion sealing ring (2011) is provided on the bottom wall of the limiting sliding groove (2010).

7. The pile end and pile side integral post-grouting construction device according to claim 6 is characterized by: A tapered opening (2035) that is wider at the top and narrower at the bottom is provided on the inner side of the top of the telescopic cylinder (2030).

8. The pile end and pile side integral post-grouting construction device according to claim 6 is characterized by: The bottom end of the outer sleeve rod (301) is closed and can impact the top of the conical head (2033).

9. The pile end and pile side integral post-grouting construction device according to claim 8, characterized in that: The unfolded sealing ring (2011) comprises a rubber sealing ring (2012) with a hollow interior, an anti-drying and easy-opening layer (2013) is provided on the inner wall surface of the rubber sealing ring (2012), a sealing adhesive (2014) is provided in the anti-drying and easy-opening layer (2013), and a plurality of glue outlets (2015) are provided on the top and inner side of the rubber sealing ring (2012).

10. A method for using the pile end and pile side integral post-grouting construction device according to any one of claims 4 to 9, characterized in that: The method includes: S1. Install the bored piles using conventional construction technology; S2, installing a number of acoustic detection pipes (2) that meet the requirements of grouting construction on the steel cage (1), and lowering them into the hole; S3, pouring bored pile concrete and installing conventional technology for acoustic testing; S4, placing a beaded grouting device (3) in each acoustic detection tube (2), and connecting the expansion pipe (3030) and the grouting pipe (3031) to the expansion device and the grouting pump respectively; S5, using an expansion device to expand each expandable capsule (302) of the beaded grouting device (3), and through extrusion with the inside of the acoustic detection tube (2), a plurality of independent grouting cavities corresponding to the pile end grouting plug (203) and all pile side grouting pipes (202) are formed, and then a grouting pump and a grouting pipeline (3031) are used to perform grouting into the pile side grouting pipes (202) or the pile end grouting plugs (203) in the plurality of independent grouting cavities, and different grouting pressures are selected according to the parameters of each formation; S6. When the designed grouting pressure is reached or 90% of the designed grouting volume is reached, the grouting can be stopped. The pressure is maintained until the concrete begins to set and then the pressure is released. At the same time, the expandable capsule (302) is depressurized. Then the beaded grouting device (3) is pulled out and the acoustic detection pipe is grouted and sealed. The post-grouting of the pile foundation is completed.

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