Device for facilitating the removal of large diameter interlocking pile heads
By designing a device with a catheter lowering hole and a protection area, the problem of large-diameter occlusion pile heads breaking the difficulty of position identification in the middle is solved, and clear isolation and reuse are achieved, reducing construction costs and noise dust.
Patent Information
- Application Number
- CN202011135417.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-10-21
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2040-10-21
AI Technical Summary
In large diameter biting piles, it is difficult for the prior art to distinguish the location of the steel bars and the added pipelines of the pile head anchor section, resulting in inconvenience in the removal process, and noise dust, and difficulty in recycling and utilization of the residual parts of the isolation sleeve, affecting green construction.
A device including a steel cage and a device main body is designed. The device main body has a conduit lowering hole, a steel bar protection area and a pipeline protection area. The conduit is poured down through the conduit lowering hole. After the concrete solidifies, the device main body is removed to clearly isolate the steel bars and pipelines, which is beneficial to The subsequent work can be eliminated and can be reused.
It realizes clear isolation between the concrete of the pile head from the anchor section steel bars and the added pipelines, reducing the difficulty of breaking and noise dust, and the device can be reused and reduces construction costs.
Smart Images
Figure CN112112160B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pile head breaking, and more specifically, to a device for facilitating the breaking of large diameter interlocking pile heads. Background Art
[0002] In pile foundation projects in the field of construction, reinforced concrete bored piles have the characteristics of stable quality and wide application. During construction, in order to avoid the top of the pile being mixed with impurities such as bottom sediment and floating slurry that affect the quality of the pile body, it is usually required that the pouring height of the concrete should exceed the design elevation of the pile top by 0.5 to 1.0 m. The part of the pile body structure that exceeds the design elevation of the pile top is called the pile head. However, the part of the pile head that is higher than the design elevation of the pile top must be chiseled off during subsequent construction processes. The work of chiseling off this part of the pile head concrete is called "breaking the pile head."
[0003] In order to achieve the purpose of breaking the pile head concrete without causing damage to the pile body, isolation sleeves are often used to isolate the pile head anchor (segment) steel bars, added pipes (sound detection pipes, side inclined pipes, etc.) from the pile head concrete. The pile head concrete is broken manually or manually with small machinery, and then hoisted and transported out.
[0004] However, although the pile head anchor (segment) steel bars and added pipes (sound detection pipes, side inclined pipes, etc.) in this type of method are separated from the pile head concrete to reduce adhesion, the combination of the steel bars, added pipes and isolation sleeves is still wrapped by the pile head concrete. In the actual process of stripping the pile head concrete, it is not convenient to identify the positions of the pile head anchor (segment) steel bars and added pipes and to perform avoidance operations. Moreover, it is difficult to recycle the residual isolation sleeves produced after the pile head is removed, which is not conducive to green construction. Especially in large-diameter interlocking piles with thick and dense main bars, the concrete inside the pile head will still be clamped and held by the concrete inclusions of the outer steel bars, added pipes and isolation sleeves. At this time, it still requires a lot of manpower and material resources to remove it, and the removal time is long, which also causes a lot of noise and dust. Summary of the invention
[0005] The purpose of the present invention is to provide a device for facilitating the breaking of the pile head of a large-diameter interlocking pile, aiming to solve the problem in the prior art that it is not easy to identify the positions of the pile head anchor (segment) steel bars and the added pipelines and to perform avoidance operations.
[0006] The present invention is achieved by a device for breaking the pile head of a large-diameter interlocking pile, comprising:
[0007] A steel cage, wherein the top of the steel cage has an anchoring section, and the anchoring section has a plurality of steel bars;
[0008] The device body is arranged in the anchoring section of the steel cage, and the device body has a conduit lowering hole, a steel bar protection zone and a pipe protection zone. The conduit lowering hole penetrates the device body from the top to the bottom of the device body, and the conduit lowering hole is used for the centering lowering of the casting conduit, the steel bar protection zone is used to accommodate the steel bars of the anchoring section, and the pipe protection zone is used to accommodate the pipe.
[0009] Optionally, the device body further has a plurality of return slurry reserved holes, and the return slurry reserved holes penetrate the device body in a direction from the top to the bottom of the device body.
[0010] Optionally, the conduit lowering hole is located in the middle of the device body, and a plurality of return slurry reserved holes surround the conduit lowering hole and are evenly spaced.
[0011] Optionally, the inner walls of the conduit lowering hole and the plurality of return slurry reserved holes are coated with a release agent.
[0012] Optionally, a plurality of device hanging rings are also provided on the top of the device.
[0013] Optionally, a plurality of hanging rods are provided on the top of the anchoring section, the hanging rods extend out of the top of the device body, and the hanging rods are connected to the device lifting rings via pulling steel wire ropes.
[0014] Optionally, a stop-slurry strip is further provided at the bottom of the device body, and the stop-slurry strip covers the steel bar protection area. The stop-slurry strip has a plurality of steel bar through-holes, and the steel bars are passed through the steel bar through-holes and accommodated in the steel bar protection area.
[0015] Optionally, a first sealant is provided between the steel bar perforation and the steel bar.
[0016] Optionally, a stop slurry plate is further provided at the bottom of the device body, and the stop slurry plate covers the pipeline protection area. The stop slurry plate has a pipeline perforation, and the pipeline perforation is used for the pipeline to pass through and accommodate the pipeline in the pipeline protection area.
[0017] Optionally, a second sealant is provided between the pipeline perforation and the pipeline.
[0018] Compared with the prior art, the device provided by the present invention is convenient for breaking the pile head of a large-diameter interlocking pile. After the steel cage and the main body of the device are lowered into the pile hole, the casting conduit is lowered through the conduit lowering hole, and then concrete is poured. After the concrete returns, the over-cast concrete is retained in the conduit lowering hole, while no concrete enters the steel bar protection area and the pipeline protection area. After the concrete solidifies, the main body of the device is removed, and the concrete is separated from the pile head anchor (segment) steel bars and the added pipeline, which are clearly visible and well-organized, which is conducive to avoidance protection and easy for subsequent pile head breaking work. In addition, the main body of the device can also be reused, reducing construction costs. The problem in the prior art that it is not easy to identify the positions of the pile head anchor (segment) steel bars and the added pipeline and to perform avoidance operations is solved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional schematic diagram of a device for facilitating the breaking of a large-diameter interlocking pile head provided by the present invention;
[0020] Figure 2 It is a side view schematic diagram of the main body of the device provided by the present invention for facilitating the breaking of the pile head of a large-diameter interlocking pile, which has not been dismantled;
[0021] Figure 3 It is a side view schematic diagram of a dismantled device body of the device for facilitating breaking of a large-diameter interlocking pile head provided by the present invention;
[0022] Figure 4 The present invention is a schematic top view of a dismantled device body for facilitating the breaking of a large-diameter interlocking pile head. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0024] The implementation of the present invention is described in detail below in conjunction with specific embodiments.
[0025] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0026] Reference Figures 1 to 4 The figure shows a preferred embodiment of the present invention.
[0027] In an embodiment of the present invention, the device for facilitating the breaking of the pile head of a large-diameter interlocking pile comprises:
[0028] A steel cage, the top of which is provided with an anchoring section, and the anchoring section has a plurality of steel bars 31;
[0029] The device body 20 is arranged in the anchoring section of the steel cage. The device body 20 has a conduit lowering hole 20a, a steel protection zone 20c and a pipe protection zone 20d. The conduit lowering hole 20a penetrates the device body 20 from the top to the bottom of the device body 20. The conduit lowering hole 20a is used for centering and lowering the casting conduit 40. The steel protection zone 20c is used to accommodate the steel bars 31 of the anchoring section. The pipe protection zone 20d is used to accommodate the pipe 32.
[0030] The steel bar protection zone 20c and the pipe protection zone 20d are both semi-enclosed holes opening downward to accommodate the steel bars 31 and the pipes 32, thereby serving as protective covers for the anchoring section steel bars 31 and the pipes 32 to prevent the poured concrete from contacting the anchoring section steel bars 31 and the pipes 32.
[0031] In addition, the steel bars 31 of the above-mentioned anchoring section are arranged around the center interval, and the position of the pipe 32 can be determined according to the specific situation. The pipe 32 mentioned here can be a pipe 32 such as a measuring pipe, an inclinometer pipe or a grouting pipe. In this way, when the main body 20 of the device is specifically formed, it can be molded according to the needs of the site, and the size of each orifice and protection area is selected according to the diameter of the on-site pile hole, the steel bars 31, the added pipe 32 and the casting conduit 40.
[0032] In this embodiment, after the steel cage and the device body 20 are lowered into the pile hole, the casting conduit 40 is lowered through the conduit lowering hole 20a, and then concrete is poured. After the concrete returns, the over-cast concrete is retained in the conduit lowering hole 20a, while no concrete enters the steel protection area 20c and the pipe protection area 20d. After the concrete solidifies, the device body 20 is removed, and the concrete is separated from the pile head anchor (segment) steel bars 31 and the added pipes 32, which are clearly visible and well-organized, which is conducive to avoidance and protection, and is easy for subsequent pile head breaking work. In addition, the device body 20 can also be reused, reducing construction costs.
[0033] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, the device body 20 further has a plurality of return slurry reserved holes 20 b, and the return slurry reserved holes 20 b penetrate the device body 20 from the top to the bottom of the device body 20.
[0034] The above-mentioned conduit lowering hole 20a and the return grouting reserved hole 20b can relieve the pressure of the air in the pile hole, the mud at the bottom of the hole and the over-poured concrete and return them upward during the secondary hole cleaning and concrete pouring process of the pile hole. After the over-poured concrete returns, the over-poured concrete can be divided into multiple cylinders, breaking them into smaller ones, which is convenient for the subsequent breaking of the pile head concrete.
[0035] In this embodiment, the conduit lowering hole 20a is located in the middle of the device body 20, and a plurality of return slurry reserved holes 20b surround the conduit lowering hole 20a and are evenly spaced.
[0036] In this way, it is easy to align the conduit without scratching the steel cage. At the same time, there is a gap between the conduit and the conduit lowering hole 20a, so as to simultaneously play the role of relieving pressure and returning the air in the pile hole, the mud at the bottom of the hole and the over-cast concrete. The return slurry reserved hole 20b is helpful for the concrete, the sediment at the bottom of the hole, the floating slurry and the gas to be discharged upward.
[0037] In this embodiment, the above-mentioned conduit lowering hole 20a and the return slurry reserved hole 20b are both circular through holes, so that the subsequent demoulding and removal of the device body 20 is convenient.
[0038] In addition, the inner walls of the conduit lowering hole 20a and the plurality of slurry return reserved holes 20b are coated with a release agent.
[0039] In this way, it is convenient to dismantle the device body 20 later and recycle it. Further, from the top to the bottom of the device body 20, the diameter of the conduit lowering hole 20a gradually increases, and / or the diameter of the back-slurry reserved hole 20b gradually increases, so as to further facilitate demoulding.
[0040] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, a plurality of device hanging rings 21 are further provided on the top of the device.
[0041] The device can be lifted by the device lifting ring 21 for easy disassembly. Specifically, in the present embodiment, the device lifting ring 21 is welded and fixed to the top of the device body 20. There are four of them, and they are arranged on both sides of the conduit lowering hole 20a on the same straight line, so as to smoothly lift the device body 20. In another embodiment, a plurality of device lifting rings 21 can be arranged at a position perpendicular to the above-mentioned straight line. In this way, the device body 20 can be lifted from four directions to ensure the balance of the device body 20 and facilitate disassembly.
[0042] In addition, a plurality of hanging rods 311 are provided at the top of the anchoring section. The hanging rods 311 extend out of the top of the device body 20 . The hanging rods 311 are connected to the device hanging ring 21 by a pulling wire rope.
[0043] The top of the device body 20 has a through hole for the hanging rod 311 to pass through. The hanging rod 311 is welded to the steel bar 31 of the anchoring section. The hanging rod 311 is close to the above-mentioned device lifting ring 21. Specifically, there are two hanging rods 311, and they are close to the lifting rings on both sides. In this way, the two are connected by pulling the wire rope. The hanging rod 311 lifts the device body 20 as a whole, ensuring the position of the device body 20, so as to facilitate the lowering of the steel cage with the device body 20 into the pile hole. In addition, in order to facilitate the installation of the hanging rod 311, after the device body 20 is installed in the anchoring section, the hanging rod 311 passes through the through hole on the top of the device body 20 and is welded to the steel bar 31 of the anchoring section to achieve fixation.
[0044] In addition, the steel bars 31 of the anchoring section are embedded in the steel bar protection area 20c. Since the bending deformation degrees of each steel bar 31 are different, the friction between the multiple surrounding steel bars 31 and the steel bar protection area 20c will further play a role in clamping and fixing.
[0045] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, a stop-slurry strip 22 is further provided at the bottom of the device body 20. The stop-slurry strip 22 covers the steel bar protection area 20c. The stop-slurry strip 22 has a plurality of steel bar through-holes 22a. The steel bars 31 are passed through the steel bar through-holes 22a and accommodated in the steel bar protection area 20c.
[0046] The gap between the stop strip 22 and the device body 20 is fixed by injecting plastic glue, and of course, in other embodiments, it can also be fixed by welding. The stop strip 22 can prevent the concrete from returning and entering the steel bar protection area 20c, so as to isolate the concrete and the steel bars 31 of the anchoring section, and facilitate the subsequent breaking of the pile head.
[0047] In addition, a first sealant is provided between the steel bar through-hole 22 a and the steel bar 31 .
[0048] Specifically, the first sealant is preferably glass glue, and sealing is achieved by injecting glass glue between the steel bar perforation 22a and the steel bar 31, thereby further preventing concrete from entering the steel bar protection area 20c. At the same time, it can also facilitate the subsequent removal of the device body 20.
[0049] Similarly, a stop plate 23 is provided at the bottom of the device body 20. The stop plate 23 covers the pipeline protection area 20d. The stop plate 23 has a pipeline perforation for the pipeline 32 to pass through and accommodate the pipeline 32 in the pipeline protection area 20d.
[0050] The gap between the stop grouting sheet 23 and the device body 20 is fixed by injecting plastic glue, and of course, in other embodiments, it can also be fixed by welding. The stop grouting sheet 23 can prevent the concrete from returning and entering the pipeline protection area 20d, so as to isolate the concrete and the pipeline 32, and facilitate the subsequent removal of the pile head.
[0051] Furthermore, a second sealant is provided between the pipeline perforation and the pipeline 32 .
[0052] Specifically, the first sealant is preferably glass glue, and the glass glue is injected between the pipeline perforation and the pipeline 32 to achieve sealing, further preventing concrete from entering the pipeline protection area 20d. At the same time, it can also facilitate the subsequent removal of the device body 20.
[0053] Please refer to Figures 2 to 4 In one embodiment of the present invention, the method of using the device to break the pile head of a large diameter interlocking pile is as follows:
[0054] S11, the pouring conduit 40 is guided, corrected and aligned using the conduit lowering hole 20a, and lowered to the bottom of the hole for concrete pouring;
[0055] S12, when the over-cast concrete and the entrained mud at the bottom of the hole flow upward from the gap between the lower hole 20a of the pipe and the wall of the pile hole, the pouring is completed;
[0056] S13, taking out the casting conduit 40;
[0057] S14, the pile body is formed, and the device body 20 is dismantled and recovered;
[0058] S15, break the pile head structure on the top of the pile body.
[0059] In this way, in the formed pile head structure, the concrete is separated from the pile head anchor (segment) steel bars 31 and the added pipes 32, which are clearly visible and well-organized, which is conducive to avoidance and protection, and facilitates subsequent pile head breaking work. In addition, the device body 20 can also be reused, reducing construction costs.
[0060] Please refer to Figures 2 to 4 In one embodiment of the present invention, the device body 20 also has a plurality of grouting holes 20b, which are arranged at intervals around the conduit lowering hole 20a. In this way, when the over-cast concrete and the mud carried by the bottom of the hole flow upward from the conduit lowering hole 20a, the grouting holes 20b and the gap between the pile hole walls, the pouring is completed. And, after S12:
[0061] A first concrete column 11 is formed in the conduit lowering hole 20a, and a plurality of second concrete columns 12 are formed in the plurality of grouting reserved holes 20b.
[0062] In this way, after the pile head concrete is divided into multiple areas, the amount of concrete broken in the same horizontal section is reduced by nearly 60%, which reduces the difficulty of breaking the pile head, reduces the power requirements of the lifting and transportation equipment for the broken block concrete, reduces construction costs, improves construction efficiency, and reduces noise and dust pollution.
[0063] Of course, in other embodiments, as needed, the above-mentioned return grouting reserved hole 20b may not be provided, and only the gap between the pouring conduit 40 and the conduit lowering hole 20a is used to relieve the pressure of the air in the pile hole, the mud at the bottom of the hole and the over-cast concrete. It will not be repeated here.
[0064] Please refer to Figures 2 to 4 In one embodiment of the present invention, after S13:
[0065] A plurality of U-shaped steel rings 101 are inserted into the top end of the first concrete column 11 and the top end of the second concrete column 12 .
[0066] When the concrete is not completely solidified, the U-shaped steel ring 101 is inserted. After the concrete solidifies, the U-shaped ring can form an integrated structure with the first concrete column 11 and / or the second concrete column 12, which is convenient for subsequent lifting. Of course, in other embodiments, the steel ring can also be circular, etc., which will not be repeated.
[0067] Specifically, in this embodiment, four U-shaped lifting rings are arranged at intervals around the first concrete column 11 to ensure stable lifting, while the second concrete column 12 has a smaller diameter, so only one U-shaped lifting ring is provided on its top.
[0068] Please refer to Figures 2 to 4 In addition, in one embodiment of the present invention, in S15:
[0069] After the earthwork is excavated to the top beam bottom elevation to expose the pile head, the pile side annular concrete 13 is first broken, and then the second concrete column 12 and the first concrete column 11 are broken in sequence.
[0070] Since there is also concrete between the device body 20 and the pile hole wall, after the earth is excavated to expose the pile head, the pile side annular concrete structure 13 can be broken first. Since the concrete in this part is relatively thin, in one embodiment, it can be quickly broken using a small pneumatic pick.
[0071] In this embodiment, the steps of breaking the pile side annular concrete 13 include:
[0072] A small pneumatic pick is used to chisel out a first annular groove in the annular concrete 13 on the pile side;
[0073] Then, several wedges are driven into the first annular groove and the wedges are struck with a small hammer;
[0074] When the concrete is knocked loose, the pile side annular concrete 13 is removed.
[0075] In this way, loud noise and dust are avoided during the demolition process.
[0076] In addition, the steps of breaking the second concrete column 12 include:
[0077] A small pneumatic pick is used to chisel out an annular groove at the root of the second concrete column 12;
[0078] Then drive several wedges into the annular groove and tap the wedges with a small hammer;
[0079] When the lifting device is able to disconnect the steel wire rope, the steel wire rope is tied to the U-shaped steel lifting ring 101, and the separated second concrete column 12 is hoisted out as a whole by the lifting device.
[0080] Since the second concrete column 12 is arranged in a ring around the outer circumference of the first concrete column 11, after breaking the above-mentioned multiple second concrete columns 12, the central first concrete column 11 can be broken, and before the second concrete column 12 is loosened, it can be tightened by a steel wire rope to avoid falling and facilitate quick transportation; the method of breaking the first concrete column 11 is the same as that of the second concrete column 12, and will not be repeated.
[0081] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, before S11:
[0082] Before lowering the steel cage, the device body 20 is installed on the anchoring section of the steel cage;
[0083] A stop grout strip 22 is added at the opening of the steel bar protection zone 20c at the bottom of the device body 20, and the stop grout strip 22 is bonded to the device body 20 by injecting plastic glue. The stop grout strip 22 has a steel bar through hole 22a for the steel bar 31 of the steel bar cage anchoring section to pass through, and the gap between the steel bar through hole 22a and the steel bar 31 of the steel bar cage anchoring section is sealed by injecting glass glue;
[0084] A stop grouting sheet 23 is added at the opening of the pipeline protection area 20d at the bottom of the device body 20, and the stop grouting sheet 23 is bonded to the device body 20 by injecting plastic glue. The stop grouting strip 22 has a pipeline perforation for the pipeline 32 to pass through, and the gap between the pipeline perforation and the pipeline 32 is sealed by injecting glass glue;
[0085] The gap between the top of the device body 20 and the hanging rod 311 of the anchoring section of the steel cage is sealed by injecting glass glue, and the device hanging ring 21 and the hanging ring of the hanging rod 311 of the anchoring section of the steel cage are bound by pulling the steel wire rope.
[0086] The stop grout strips 22 and stop grout sheets 23 are used to prevent concrete from entering the steel bar protection area 20c and the pipe protection area 20d, thereby isolating the concrete and the steel bars 31 or the pipes 32, making it easier to subsequently remove the pile head structure.
[0087] And, before S11:
[0088] After the device body 20 is installed, a mold release agent is applied to the outer wall of the device body 20, the inner wall of the back-slurry reserved hole 20b, and the inner wall of the conduit lowering hole 20a.
[0089] In addition, in S14:
[0090] After the concrete is initially set, the pile body is formed, the lifting ring of the steel cage lifting bar 311 is cut off, and the device body 20 is lifted by lifting the steel wire rope fixed to the device lifting ring 21 through the lifting equipment, and the device body 20 is dismantled and recovered.
[0091] In this way, the eye of the hanging rod 311 is prevented from blocking the device body 20, and the device body 20 can be easily dismantled for easy recycling and reuse.
[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A device for breaking the head of a large diameter interlocking pile, characterized in that: include: The device body is arranged at the anchoring section at the top of the steel cage, and the anchoring section has a plurality of steel bars; the device body has a conduit lowering hole, a steel bar protection zone, and a pipe protection zone, the conduit lowering hole penetrates the device body from the top to the bottom of the device body, the conduit lowering hole is used for the casting conduit to be lowered in the center, the steel bar protection zone is used for accommodating the steel bars of the anchoring section, and the pipe protection zone is used for accommodating the pipe; The device body also has a plurality of return slurry reserved holes, and the return slurry reserved holes penetrate the device body from the top to the bottom of the device body; The catheter lowering hole is located in the middle of the device body, and multiple return slurry reserved holes surround the catheter lowering hole and are evenly spaced; the inner walls of the catheter lowering hole and multiple return slurry reserved holes are coated with a release agent; along the top to the bottom of the device body, the aperture of the catheter lowering hole gradually increases, and / or the aperture of the return slurry reserved hole gradually increases.
2. A device for facilitating the breaking of the pile head of a large diameter interlocking pile as claimed in claim 1, characterized in that: A plurality of device hanging rings are also provided on the top of the device.
3. A device for facilitating the breaking of the pile head of a large diameter interlocking pile as claimed in claim 2, characterized in that: A plurality of hanging rods are arranged on the top of the anchoring section, and the hanging rods extend out of the top of the device body. The hanging rods are connected to the device hanging rings through pulling steel wire ropes.
4. A device for facilitating the breaking of the pile head of a large diameter interlocking pile as claimed in claim 1, characterized in that: A grout-stopping strip is also provided at the bottom of the device body. The grout-stopping strip covers the steel bar protection area. The grout-stopping strip has a plurality of steel bar through-holes. The steel bars are passed through the steel bar through-holes and accommodated in the steel bar protection area.
5. A device for facilitating the breaking of the pile head of a large diameter interlocking pile as claimed in claim 4, characterized in that: A first sealant is provided between the steel bar through-hole and the steel bar.
6. A device for facilitating the breaking of the pile head of a large diameter interlocking pile as claimed in claim 1, characterized in that: A stop grout plate is also provided at the bottom of the device body, and the stop grout plate covers the pipeline protection area. The stop grout plate has pipeline through holes, and the pipeline through holes are used for pipelines to pass through and accommodate the pipelines in the pipeline protection area.
7. A device for facilitating the breaking of the pile head of a large diameter interlocking pile as claimed in claim 6, characterized in that: A second sealant is provided between the pipeline perforation and the pipeline.