Innovative pile foundation grouting nozzle and construction method

Abstract

The invention discloses an innovative pile foundation grouting nozzle and a construction method, and relates to the technical field of high-pressure jet grouting, the innovative pile foundation grouting nozzle comprises a grouting pipe, the end part of the grouting pipe is in threaded connection with a hexagonal screw thread, the other end of the hexagonal screw thread is in threaded connection with a guniting device, and the innovative pile foundation grouting nozzle further comprises a plugging assembly; through the gyroscope-shaped design, the risk that a grout spraying opening is compacted is greatly reduced, and the grouting efficiency is remarkably improved; the problems that in the prior art, although grouting operation can be achieved through high pressure, it cannot be guaranteed that a nozzle cannot be blocked by concrete when a spray head penetrates into soil, the phenomenon is similar to the phenomenon that a guniting hole is densely blocked by concrete due to the fact that the guniting hole of a traditional spray head is difficult to penetrate into soil, and consequently follow-up grouting work cannot be normally carried out are solved. And the construction effect is seriously influenced.

Description

Technical Field

[0001] The invention relates to the technical field of high-pressure jet grouting, and in particular to an innovative pile foundation grouting nozzle and a construction method. Background Art

[0002] With the booming construction industry, the demand for building quality is becoming increasingly stringent. Post-grouting of pile foundations, a key method for improving foundation bearing capacity, plays a vital role in construction. Grouting pipes and nozzles are crucial components in post-grouting, and their performance directly impacts construction success.

[0003] After searching, the patent document with announcement number CN214657036U discloses a high-pressure jet grouting nozzle, including: a nozzle body, a main nozzle and a sub-nozzle; the nozzle body as a whole is a conical structure, a slurry inlet pipe is provided on the upper part of the nozzle body, and a plurality of main nozzles and a plurality of sub-nozzles are provided on the lower part of the nozzle body, the main nozzle and the sub-nozzle are both connected to the slurry inlet pipe, the main nozzle and the sub-nozzle are both slurry outlets on the outer surface of the nozzle body, the area of the sub-nozzle is smaller than that of the main nozzle, at least two main nozzles are in the same plane, and a sub-nozzle is provided directly below each main nozzle.

[0004] However, the above invention has the following shortcomings: although grouting operations can be achieved through high pressure, it cannot guarantee that the nozzle will not be blocked by concrete when the nozzle is deeply immersed in the soil. This is similar to the traditional nozzle, which often has difficulty in penetrating the soil, resulting in the grouting holes being densely blocked by concrete, making it impossible to carry out subsequent grouting work normally, seriously affecting the construction effect, so it has certain limitations. Summary of the Invention

[0005] The purpose of the present invention is to provide an innovative pile foundation grouting nozzle and construction method to solve the problems raised in the above-mentioned background technology. Through the gyro-shaped design, the risk of the grouting mouth being compacted is greatly reduced, the grouting efficiency is significantly improved, and the foundation reinforcement effect is ensured to meet the expected standards.

[0006] The technical solution of the present invention is: an innovative pile foundation grouting nozzle, comprising a grouting pipe, the end of the grouting pipe is connected with a hexagonal thread by a thread, and also comprises a blocking component.

[0007] A spraying device, wherein the spraying device is threadedly connected to the other end of the hexagonal thread, the spraying device includes a spraying pipe and a spraying head, the end of the spraying pipe is threadedly connected to the hexagonal thread, the spraying head is fixedly installed at the bottom of the spraying pipe, and a plurality of spraying ports are equidistantly provided on the spraying head.

[0008] A plugging assembly is provided on the spraying device.

[0009] The blocking assembly includes a plurality of pairs of support blocks fixedly installed on the spray head at equal distances, and a support shaft is fixedly installed between each pair of support blocks.

[0010] Preferably, a pair of connecting blocks are rotatably mounted on each of the supporting shafts, a blocking plate is fixedly mounted on the bottom of each pair of connecting blocks, and each blocking plate corresponds to a spraying port.

[0011] Preferably, a coil spring is fixedly installed between each connecting block and the corresponding supporting block.

[0012] A construction method for an innovative pile foundation grouting nozzle comprises the following steps:

[0013] Step 1: First, use the drilling device to drill a hole at the designated position of the pile foundation according to the diameter of the spray head. After the drilling is completed, fix the spray head to the grouting pipe through the hexagonal thread to ensure a tight connection.

[0014] Step 2: After the spraying device is connected to the grouting pipe, the grouting pipe is fixedly connected to the high-pressure grouting pump, the high-pressure grouting pump is started, and the grouting operation is started.

[0015] Step 3: After the grouting is completed, the grouting pipe and spraying device are taken out and cleaned and stored. The grouting work is now successfully completed.

[0016] The present invention provides an innovative pile foundation grouting nozzle and construction method through improvement, which has the following improvements and advantages compared with the prior art:

[0017] First, the spray head of the present invention is designed into a unique gyroscope shape, and a spray port is set at a position two-thirds away from the bottom of the gyroscope. By designing the spray head into a gyroscope shape, it has multiple significant advantages. It can effectively prevent the spray head from penetrating into the soil during concrete pouring operations, causing the spray port to be densely blocked by concrete, thereby ensuring the smooth implementation of subsequent grouting work, greatly ensuring the construction effect, and improving construction efficiency.

[0018] Secondly, when a high-pressure grouting pump applies pressure to perform grouting operations, the gyro-shaped spray head of the present invention can, with the help of its special shape and structure, allow the slurry to be sprayed out more smoothly and quickly, thereby significantly improving the grouting efficiency and ensuring that the foundation reinforcement effect meets the expected standards. In addition, the innovative pile foundation grouting nozzle is simple to manufacture, convenient to construct, safe and reliable, and greatly improves the bearing capacity of the pile end. It has good practicality, innovation and promotion, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the overall three-dimensional structure provided by the present invention;

[0021] Figure 2 A schematic diagram of the hexagonal thread structure provided by the present invention;

[0022] Figure 3 A schematic structural diagram of the spraying device provided by the present invention;

[0023] Figure 4 A schematic structural diagram of the blocking assembly provided by the present invention;

[0024] Figure 5 This is a schematic diagram of the half-section structure of the spraying assembly provided by the present invention.

[0025] Reference numerals:

[0026] 1. Grouting pipe; 2. Hexagonal thread; 3. Spraying device; 31. Spraying pipe; 32. Spraying head; 33. Spraying port; 4. Support block; 5. Support shaft; 6. Sealing plate; 7. Connecting block; 8. Coil spring. DETAILED DESCRIPTION

[0027] The present invention is described in detail below, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] The present invention provides an innovative pile foundation grouting nozzle and construction method through improvement. The technical solution of the present invention is:

[0029] Example 1

[0030] like Figures 1 to 5 As shown, an embodiment of the present invention provides an innovative pile foundation grouting nozzle, including a grouting pipe 1, the end of the grouting pipe 1 is connected to a hexagonal thread 2 by a thread, and also includes a sealing component. The hexagonal thread 2 can be used to quickly assemble and disassemble, thereby improving the assembly efficiency of the grouting device and shortening the construction time. In addition, the provided sealing component can effectively seal the slurry outlet of the spraying device 3, further reducing the probability of the slurry outlet being blocked.

[0031] The spraying device 3 is threadedly connected to the other end of the hexagonal thread 2. The spraying device 3 includes a spraying pipe 31 and a spraying head 32. The end of the spraying pipe 31 is threadedly connected to the hexagonal thread 2. The spraying head 32 is fixedly installed at the bottom of the spraying pipe 31. A plurality of spraying ports 33 are equidistantly provided on the spraying head 32. By setting the spraying head 32 into a gyro shape, the spraying port 33 can be greatly prevented from being blocked by concrete, thereby affecting the smooth progress of the spraying operation.

[0032] The plugging component is arranged on the spraying device 3.

[0033] The plugging assembly includes multiple pairs of support blocks 4 equidistantly fixedly mounted on the spray head 32, and a support shaft 5 is fixedly mounted between each pair of support blocks 4. The provided support blocks 4 and support shaft 5 can ensure that the plugging assembly works normally.

[0034] Furthermore, a pair of connecting blocks 7 are rotatably mounted on each support shaft 5, and a sealing plate 6 is fixedly mounted on the bottom of each pair of connecting blocks 7. Each sealing plate 6 corresponds to the spraying port 33. The setting of the sealing plate 6 can further improve the sealing effect, thereby greatly reducing the probability of the spraying port 33 being blocked, and ensuring the smooth progress of the spraying operation.

[0035] Furthermore, a coil spring 8 is fixedly installed between each connecting block 7 and the corresponding supporting block 4. The set coil spring 8 can ensure that when no grouting is performed, the sealing plate 6 can be tightly attached to the side wall of the grouting head 32, thereby effectively sealing the grouting port 33. When grouting operation is required, the pressure pumped by the high-pressure grouting pump can directly flush the sealing plate 6 from the inside, thereby achieving stable grouting operation.

[0036] Example 2

[0037] This embodiment provides a construction method of an innovative pile foundation grouting nozzle, comprising the following steps:

[0038] Step 1: First, use the drilling device to drill a hole at the designated position of the pile foundation according to the diameter of the spray head 32. After the drilling is completed, the spray head 32 is fixedly connected to the grouting pipe 1 through the hexagonal thread 2 to ensure a tight connection.

[0039] Step 2: After the spraying device 3 is connected to the grouting pipe 1, the grouting pipe 1 is fixedly connected to the high-pressure grouting pump, the high-pressure grouting pump is started, and the grouting operation is started.

[0040] Step 3: After the grouting is completed, the grouting pipe 1 and the spraying device 3 are taken out and cleaned and stored. At this point, the grouting work is successfully completed.

[0041] The specific working principle is: first, according to the location where grouting is required, a hole of appropriate depth is drilled at the designated location through the existing drilling device, and then the spraying device 3 is fixedly connected to the grouting pipe 1 through the hexagonal thread 2. After the connection is completed, one end of the grouting pipe 1 is connected to the high-pressure grouting pump. After the spraying device 3 is extended to the appropriate position, the high-pressure grouting pump is started to start the grouting operation. The gyro-shaped spraying head 32 can make the slurry sprayed out more smoothly and quickly, which significantly improves the grouting efficiency and ensures that the foundation reinforcement effect meets the expected standards.

[0042] The above description is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An innovative pile foundation grouting nozzle, comprising a grouting pipe (1), the end of which is threadedly connected to a hexagonal thread (2), characterized in that: Also includes; A spraying device (3), wherein the spraying device (3) is threadedly connected to the other end of the hexagonal thread (2), and the spraying device (3) comprises a spraying pipe (31) and a spraying head (32), wherein the end of the spraying pipe (31) is threadedly connected to the hexagonal thread (2), and the spraying head (32) is fixedly mounted on the bottom of the spraying pipe (31), and a plurality of spraying ports (33) are equidistantly provided on the spraying head (32); A plugging assembly, the plugging assembly being arranged on the spraying device (3); The blocking assembly comprises a plurality of pairs of support blocks (4) fixedly mounted on the spray head (32) at equal distances, and a support shaft (5) is fixedly mounted between each pair of support blocks (4).

2. The innovative pile foundation grouting nozzle according to claim 1, characterized in that: A pair of connecting blocks (7) are rotatably mounted on each of the supporting shafts (5), and a blocking plate (6) is fixedly mounted on the bottom of each pair of connecting blocks (7), and each blocking plate (6) corresponds to a spraying port (33).

3. An innovative pile foundation grouting nozzle according to any one of claim 2, characterized in that: A coil spring (8) is fixedly installed between each connecting block (7) and the corresponding supporting block (4).

4. A construction method for an innovative pile foundation grouting nozzle, which is applied to the innovative pile foundation grouting nozzle according to any one of claims 1 to 3, characterized in that: The following steps are included: Step 1: First, a hole is drilled at a designated location of the pile foundation according to the diameter of the spray head (32) by a drilling device. After the drilling is completed, the spray head (32) is fixedly connected to the grouting pipe (1) through a hexagonal thread (2) to ensure a tight connection; Step 2: After the spraying device (3) is connected to the grouting pipe (1), the grouting pipe (1) is fixedly connected to the high-pressure grouting pump, and the high-pressure grouting pump is started to start the grouting operation; Step 3: After the grouting is completed, the grouting pipe (1) and the spraying device (3) are taken out and cleaned and stored. At this point, the grouting work is successfully completed.

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