A grouting device for improving the bearing capacity of pile foundation
By designing a grouting device including a rotary joint, a grouting split disc and a vibrating rod, the problem of uneven dispersion position of concrete slurry in the prior art is solved, uniform grouting and vibration of the pile foundation is achieved, and the bearing capacity of the pile foundation is significantly improved.
Patent Information
- Application Number
- CN202421475558.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The existing concrete conveying pipe has a single structure, resulting in uneven dispersion of concrete slurry, affecting the overall bearing capacity of the pile foundation.
A grouting device is designed, including a grouting conveying main pipe, a rotary joint, a grouting splitter, a shunt pipe and a grouting port. Through the rotation of the rotating joint and a grouting splitter, uniform spraying of concrete is achieved, and the concrete is vibrated through a vibrating rod to improve compactness.
Through uniform grouting and vibration operations, the bearing capacity of the pile foundation is significantly improved and the overall performance of the pile foundation is ensured.
Smart Images
Figure CN222730551U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a grouting device for improving the bearing capacity of a pile foundation. Background Art
[0002] Bored piles are piles made by forming pile holes in the foundation soil at the construction site through mechanical drilling, steel pipe squeezing or manual excavation, placing steel cages in them and pouring concrete.
[0003] The grouting device mainly transports the concrete slurry into the steel cage through the slurry delivery pipe, so that the concrete slurry and the steel cage solidify together to form a pile foundation.
[0004] The current concrete delivery pipe structure is relatively simple, and is mainly used to transport concrete slurry. In actual use, the concrete slurry delivery position is relatively fixed, which makes the concrete slurry dispersion position uneven, resulting in the bearing capacity of the side of the pile foundation being less than the bearing capacity of the middle of the pile foundation, affecting the overall bearing capacity of the pile foundation.
[0005] In view of this, the present technical solution proposes a grouting device for improving the bearing capacity of pile foundation, so as to better solve the above-mentioned problems. Utility Model Content
[0006] The purpose of the utility model is to provide a grouting device for improving the bearing capacity of pile foundation in order to solve the above-mentioned problems.
[0007] The technical solution adopted by the utility model is as follows: a grouting device for improving the bearing capacity of a pile foundation, comprising a grouting delivery main pipe used for concrete delivery, the bottom end of the grouting delivery main pipe is fixed on a rotary joint, and a grouting diversion plate is rotatably installed below the rotary joint, the outer peripheral surface of the grouting diversion plate is connected with a plurality of grouting diversion pipes, and a plurality of grouting ports are evenly distributed at the bottom of the grouting diversion pipe;
[0008] A fixing rod is fixed to the bottom of the grouting diversion plate, and a connecting seat is rotatably installed at the lower part of the fixing rod. A mounting plate is installed at the bottom of the connecting seat through a connecting plate. A vibrating rod is arranged below the mounting plate, and a cable outer protective rubber hose provided on the vibrating rod runs through the inside of the mounting plate.
[0009] In a preferred embodiment, a grouting delivery main pipe external joint is fixed on the grouting delivery main pipe, and the grouting delivery main pipe external joint is connected to an external high-pressure grouting pump.
[0010] In a preferred embodiment, the grouting port forms an angle of 45 degrees with the vertical direction.
[0011] In a preferred embodiment, the grouting ports are linearly distributed below the grouting diversion pipe, and there are no less than four grouting ports.
[0012] In a preferred embodiment, the connecting seat is installed at the lower part of the fixing rod through a bearing.
[0013] In a preferred embodiment, the cable outer protective rubber hose is located below the connecting seat, and the cable outer protective rubber hose and the cable inside the cable outer protective rubber hose are electrically connected to an external controller at one end away from the vibration rod.
[0014] In a preferred embodiment, a cable is disposed inside the cable outer protective rubber hose and is electrically connected to the vibrating rod.
[0015] In summary, due to the adoption of the above-mentioned technical scheme, the beneficial effects of the utility model are: it is convenient to better uniformly grout the concrete, and at the same time the concrete can be vibrated to make the concrete densely combined. By uniformly grouting the concrete and cooperating with the vibrating rod, the bearing capacity of the pile foundation can be increased.
[0016] 1. In the utility model, concrete can be transported to the interior of the rotary joint by connecting the external joint of the grouting delivery main pipe to an external high-pressure grouting pump.
[0017] 2. In the utility model, the grouting diverter plate is connected to the grouting delivery main pipe by a rotary joint, so that concrete can be transported to the inside of the grouting diverter plate. At the same time, the concrete inside the grouting diverter plate is transported to the grouting diverter pipe and sprayed out through the grouting port. Since the grouting port is at an angle of 45 degrees, the concrete sprayed out of the grouting port will provide a reaction force to the grouting diverter plate, so that the grouting diverter plate rotates, which can drive the grouting diverter pipe and the grouting port to rotate, thereby ensuring uniform spraying.
[0018] 3. In the utility model, since the connecting seat is rotatably installed at the bottom of the fixing rod and the vibrating rod is inserted into the concrete, the vibrating rod will not rotate under the action of the concrete, and the vibrating rod can vibrate the concrete to make the concrete densely combined, thereby better improving the bearing capacity of the pile foundation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of the middle A area;
[0021] Figure 3 It is a schematic diagram of the structure of the rotary joint, the grouting diversion plate and the grouting diversion pipe of the utility model.
[0022] Markings in the figure: 1- grouting delivery main pipe; 2- external joint of grouting delivery main pipe; 3- rotating joint; 4- grouting diversion plate; 5- grouting diversion pipe; 6- grouting port; 7- fixing rod; 8- connecting seat; 9- connecting plate; 10- mounting plate; 11- vibrating rod; 12- cable outer protective rubber hose. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The following will be combined Figure 1-Figure 3 A grouting device for improving the bearing capacity of a pile foundation according to an embodiment of the utility model is described in detail.
[0025] refer to Figure 1 and 3 As shown, a grouting device for improving the bearing capacity of a pile foundation comprises a grouting delivery main pipe 1 for conveying concrete, a grouting delivery main pipe external joint 2 is fixed on the grouting delivery main pipe 1, and the grouting delivery main pipe external joint 2 is connected to an external high-pressure grouting pump, the bottom end of the grouting delivery main pipe 1 is fixed on a rotary joint 3, and a grouting diverter plate 4 is rotatably installed below the rotary joint 3, a plurality of grouting diverter pipes 5 are connected to the outer peripheral surface of the grouting diverter plate 4, and a plurality of grouting ports 6 are evenly distributed at the bottom of the grouting diverter pipe 5, the grouting ports 6 form an angle of 45 degrees with the vertical direction, the grouting ports 6 are linearly distributed below the grouting diverter pipe 5, and there are no less than four grouting ports 6, and the inner walls of the grouting delivery main pipe 1, the grouting diverter plate 4, the grouting diverter pipe 5 and the grouting ports 6 can be provided with an anti-adhesion ceramic coating to better prevent concrete from adhering to the inner walls of the grouting delivery main pipe 1, the grouting diverter plate 4, the grouting diverter pipe 5 and the grouting ports 6 to cause blockage.
[0026] refer to Figure 1-2As shown, a fixing rod 7 is fixed to the bottom of the grouting diversion plate 4, and a connecting seat 8 is rotatably installed at the lower part of the fixing rod 7. The connecting seat 8 is installed at the lower part of the fixing rod 7 through a bearing. A mounting plate 10 is installed at the bottom of the connecting seat 8 through a connecting plate 9. A vibrating rod 11 is arranged below the mounting plate 10, and a cable outer protective rubber hose 12 provided on the vibrating rod 11 passes through the inside of the mounting plate 10. The cable outer protective rubber hose 12 is located below the connecting seat 8, and the cable outer protective rubber hose 12 and the cable inside the cable outer protective rubber hose 12 away from the vibrating rod 11 are electrically connected to an external controller, and a cable is arranged inside the cable outer protective rubber hose 12 and is electrically connected to the vibrating rod 11.
[0027] The advantages of the present application are: it is convenient to evenly grout the concrete, and at the same time the concrete can be vibrated to make the concrete densely combined. By evenly grouting the concrete and cooperating with the vibrating rod 11, the bearing capacity of the pile foundation can be increased.
[0028] In the technical solution, the external joint 2 of the grouting delivery main pipe is connected to an external high-pressure grouting pump, so that concrete can be delivered to the interior of the rotary joint 3.
[0029] In the present technical solution, the grouting diverter plate 4 is connected to the grouting delivery main pipe 1 through the rotating joint 3, so that the concrete can be transported to the inside of the grouting diverter plate 4. At the same time, the concrete inside the grouting diverter plate 4 is transported to the grouting diverter pipe 5 and sprayed out through the grouting port 6. Since the grouting port 6 is at an angle of 45 degrees, the concrete sprayed out of the grouting port 6 will provide a reaction force to the grouting diverter plate 4, causing the grouting diverter plate 4 to rotate, which can drive the grouting diverter pipe 5 and the grouting port 6 to rotate, thereby ensuring uniform spraying.
[0030] In this technical solution, since the connecting seat 8 is rotatably installed at the bottom of the fixed rod 7 and the vibrating rod 11 is inserted into the concrete, the vibrating rod 11 will not rotate under the action of the concrete, and the vibrating rod 11 can vibrate the concrete to make the concrete densely combined, thereby better improving the bearing capacity of the pile foundation.
[0031] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A grouting device for improving the bearing capacity of a pile foundation, comprising a grouting delivery main pipe (1) for delivering concrete, characterized in that: The bottom end of the grouting delivery main pipe (1) is fixed on the rotary joint (3), and a grouting diversion plate (4) is rotatably installed below the rotary joint (3), the outer peripheral surface of the grouting diversion plate (4) is connected to a plurality of grouting diversion pipes (5), and a plurality of grouting ports (6) are evenly distributed at the bottom of the grouting diversion pipes (5); A fixing rod (7) is fixed at the bottom of the grouting diversion plate (4), and a connecting seat (8) is rotatably installed at the bottom of the fixing rod (7). A mounting plate (10) is installed at the bottom of the connecting seat (8) via a connecting plate (9). A vibrating rod (11) is arranged below the mounting plate (10), and a cable outer protective rubber hose (12) provided on the vibrating rod (11) passes through the inside of the mounting plate (10).
2. A grouting device for improving the bearing capacity of a pile foundation as claimed in claim 1, characterized in that: A grouting delivery main pipe external joint (2) is fixed on the grouting delivery main pipe (1), and the grouting delivery main pipe external joint (2) is connected to an external high-pressure grouting pump.
3. A grouting device for improving the bearing capacity of a pile foundation as claimed in claim 1, characterized in that: The grouting port (6) forms an angle of 45 degrees with the vertical direction.
4. A grouting device for improving the bearing capacity of a pile foundation as claimed in claim 3, characterized in that: The grouting ports (6) are linearly distributed below the grouting diversion pipe (5), and there are no less than four grouting ports (6).
5. A grouting device for improving the bearing capacity of a pile foundation as claimed in claim 1, characterized in that: The connecting seat (8) is installed at the lower part of the interior of the fixing rod (7) via a bearing.
6. A grouting device for improving the bearing capacity of a pile foundation as claimed in claim 1, characterized in that: The cable outer protective rubber hose (12) is located below the connection seat (8), and the cable outer protective rubber hose (12) and the end of the cable inside the cable outer protective rubber hose (12) away from the vibration rod (11) are electrically connected to an external controller.
7. A grouting device for improving the bearing capacity of a pile foundation as claimed in claim 1, characterized in that: The cable outer protective rubber hose (12) is provided with a cable inside and is electrically connected to the vibration rod (11).