High-bearing foundation structure of pump station

Abstract

The utility model discloses a pump station high-bearing-capacity foundation structure, and belongs to the technical field of pump station foundations, the pump station high-bearing-capacity foundation structure comprises a concrete layer, a ground and prestressed pipe piles, the ground is located on the surface of the concrete layer, a plurality of prestressed pipe piles are pre-buried in the concrete layer, and each prestressed pipe pile comprises a first pipe pile section, a second pipe pile section and a welding point; each first section of pipe pile and each second section of pipe pile are welded through a welding point; the design is novel, the device is ingenious, the prestressed pipe pile foundation is arranged, due to the fact that a current pump station foundation soil is low in bearing capacity and cannot meet the design requirement, the prestressed pipe pile foundation needs to be adopted for treatment so as to improve the bearing capacity of the foundation soil, and the prestressed pipe pile foundation technology is an effective foundation treatment method; and the foundation bearing capacity can be improved, settlement is reduced, the structural stability is improved, important practical significance is achieved through research and development of the technology for improving the foundation soil bearing capacity of the prestressed pipe pile foundation, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] This application relates to the field of pump station foundation technology, and in particular to a high-bearing-load foundation structure for pump stations. Background Technology

[0002] A pumping station refers to a building housing water pump units, electrical equipment, pipelines, gate valves, etc. Its main function is to provide hydraulic and pneumatic power with a certain pressure and flow rate. Pumps and pumping station projects are collectively referred to as the inlet, outlet, pump house, and other buildings of irrigation and drainage pumping stations.

[0003] The fuel tank, motor, and pump are the three main components, but there are many auxiliary devices that can be added or removed as needed, such as fuel supply equipment, compressed air equipment, water filling equipment, water supply and drainage equipment, ventilation equipment, lifting equipment, etc. In layman's terms, it is a power device engineering project with a certain pressure and flow.

[0004] The current foundation soil of the pumping station has low bearing capacity and therefore cannot meet the design requirements.

[0005] Therefore, this application proposes a high-bearing-load foundation structure for pumping stations. Utility Model Content

[0006] This application proposes a high-bearing-capacity foundation structure for pumping stations to address the problems mentioned in the background section. By setting up prestressed pipe pile foundations, it is necessary to improve the bearing capacity of the foundation soil, as the current bearing capacity of the pumping station foundation soil is low and cannot meet design requirements. Prestressed pipe pile foundation technology is an effective foundation treatment method that can improve the bearing capacity of the foundation soil, reduce settlement, and enhance structural stability. Developing a prestressed pipe pile foundation soil bearing capacity improvement technology has significant practical implications and greatly enhances the practicality of the device.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] A high-bearing-load foundation structure for a pumping station includes a concrete layer, a ground surface, and prestressed pipe piles. The ground surface is located on the surface of the concrete layer, and multiple prestressed pipe piles are pre-embedded inside the concrete layer. Each prestressed pipe pile includes a first section of pipe pile, a second section of pipe pile, and a welding point. Each first section of pipe pile and the second section of pipe pile are welded together through the welding point.

[0009] In a preferred embodiment, the first and second pipe pile sections include a pile top and a pile bottom;

[0010] Before welding the first and second pipe pile sections, the top and bottom of the piles should be cleaned with an iron brush to improve the practicality of the device.

[0011] In a preferred embodiment, a steel plate is welded to the top of each first section of the pipe pile, and a pile tip is welded to the bottom of each first section of the pipe pile.

[0012] By welding a steel plate to the top of the prestressed pipe pile, the soil and bricks are prevented from falling off in the future. Otherwise, when the core is filled and small steel bars are placed, the core will have to be removed, thus improving the practicality of the device.

[0013] In a preferred embodiment, each of the second pipe pile sections is welded with a second steel plate at the end furthest from the first steel plate;

[0014] By setting the steel plate to be a flat, rectangular steel material made by pouring molten steel, cooling and pressing it, the practicality of the device is improved. It can be directly rolled or cut from wide steel strips.

[0015] In a preferred embodiment, the top of each first and second pipe pile is the pile top, and the end of each first and second pipe pile away from the pile top is the pile bottom.

[0016] By setting a pile bottom, when prestressed pipe piles pass through soil layers that are difficult to drive, such as coarse sand, strongly weathered rock, and moderately weathered rock, the pile tip must be welded to the pile bottom to allow the prestressed pipe pile to better enter the bearing layer. Otherwise, there will be a phenomenon of pile head explosion or large-area pipe piles being unable to be constructed to the design elevation, resulting in a dense forest of piles. This improves the practicality of the device.

[0017] The beneficial effects of this application are:

[0018] 1. This type of high-bearing-capacity foundation structure for pumping stations utilizes prestressed pipe pile foundations. Because the current foundation soil bearing capacity of pumping stations is low and cannot meet design requirements, prestressed pipe pile foundations are necessary to improve the soil bearing capacity. Prestressed pipe pile foundation technology is an effective foundation treatment method that can improve foundation bearing capacity, reduce settlement, and enhance structural stability. Developing prestressed pipe pile foundation soil bearing capacity improvement technology has significant practical implications and greatly enhances the practicality of the device.

[0019] 2. For this type of high-bearing-load foundation structure of the pump station, the top of the prestressed pipe pile should be sealed with a spot-welded steel plate to prevent the soil and bricks from falling off in the future. Otherwise, when the core is filled and small steel bars are placed in the future, the core will have to be removed. When the prestressed pipe pile passes through soil layers that are difficult to drive, such as coarse sand, strongly weathered rock, or moderately weathered rock, the pile tip should be welded to the bottom of the pile to allow the prestressed pipe pile to better enter the bearing layer. Otherwise, the pile head may burst or a large area of ​​pipe piles may not be able to be constructed to the design elevation, resulting in a dense forest of piles. This greatly improves the practicality of the device. Attached Figure Description

[0020] Figure 1This is a top view of the internal structure of the device described in this application;

[0021] Figure 2 This is a front view of the internal structure of the device described in this application;

[0022] Figure 3 This is a schematic diagram of the prestressed pipe pile of the device in this application.

[0023] The following are the labels in the diagram: 1. Concrete layer; 2. Prestressed pipe pile; 21. First section of pipe pile; 211. Steel plate one; 212. Pile tip; 22. Second section of pipe pile; 221. Steel plate two; 3. Pile top; 4. Pile bottom; 5. Welding point; 6. Ground. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0025] Reference Figure 1-3 A high-bearing-load foundation structure for a pumping station includes a concrete layer 1, a ground surface 6, and prestressed pipe piles 2. The ground surface 6 is located on the surface of the concrete layer 1. Multiple prestressed pipe piles 2 are pre-embedded inside the concrete layer 1. Each prestressed pipe pile 2 includes a first section of pipe pile 21, a second section of pipe pile 22, and a welding point 5. Each first section of pipe pile 21 and the second section of pipe pile 22 are welded together through the welding point 5.

[0026] The first section of pipe pile 21 and the second section of pipe pile 22 include a pile top 3 and a pile bottom 4. When welding the first section of pipe pile 21 and the second section of pipe pile 22, the pile top 3 and the pile bottom 4 should be cleaned with an iron brush before welding, thereby improving the practicality of the device.

[0027] A steel plate 211 is welded to the top 3 of each first section of pipe pile 21, and a pile tip 212 is welded to the bottom 4 of each first section of pipe pile 21. By spot welding steel plates to the top 3 of the prestressed pipe pile 2, the soil and bricks will fall off in the future. Otherwise, when the core is filled and small steel bars are placed in the future, the core will have to be removed, thus improving the practicality of the device.

[0028] Each second section of pipe pile 22 has a steel plate 221 welded to the end away from the steel plate 211. The steel plate is a flat steel material made by pouring molten steel, cooling and pressing it. It is flat and rectangular and can be directly rolled or cut from wide steel strips, thereby improving the practicality of the device.

[0029] The top of each first section of pipe pile 21 and the top of each second section of pipe pile 22 is the pile top 3, and the end of each first section of pipe pile 21 and the end of each second section of pipe pile 22 away from the pile top 3 is the pile bottom 4. By setting the pile bottom 4, when the prestressed pipe pile 2 passes through soil layers that are difficult to drive, such as coarse sand, strongly weathered rock, and moderately weathered rock, the pile tip 212 is welded to the pile bottom 4 so that the prestressed pipe pile 2 can better enter the bearing layer. Otherwise, the pile head will explode or a large area of ​​pipe piles will not be able to be constructed to the design elevation, resulting in a dense forest of tall piles. This improves the practicality of the device.

[0030] Working principle: During the construction of prestressed concrete pipe piles 2, the site needs to be leveled, surveyed and laid out, and the pile driver needs to be positioned. The process includes: 1. Lifting and feeding the pile: Using the pile driver, the first section of pipe pile 21 is positioned vertically in the pile driver's clamp. 2. Pile insertion and verticality observation: When the pile tip 212 penetrates 500 mm into the concrete layer 1, the verticality is adjusted using a theodolite. 3. Pile driving: The first section of pipe pile 21 is pressed into the concrete layer 1 by the machine's own weight and the use of a hydraulic structure. 4. Pile splicing: When the length of the first section of pipe pile 21 is insufficient, it needs to be spliced ​​at a distance from the first section of pipe pile 21. Weld the second section of pipe pile 22 at a height of 6 meters above the ground. Before welding, clean the upper and lower ends with an iron brush. The number of welding layers should be no less than two. The weld should be full, continuous, and free of pores. After welding, the cooling time should be no less than eight minutes. It is strictly forbidden to use water for cooling or to drive the pile immediately. The weld should also be inspected for flaws. Fifth: Pile driving. If the top 3 of the second section of pipe pile 22 still needs to be driven, the pile needs to be driven. Use a pile driver. The pile cap in the pile driver is inserted into the top 3 of the second section of pipe pile 22. The hole left after the pile is driven should be backfilled in time to avoid the machine getting stuck.

[0031] It is best to seal the top of the prestressed pipe pile 2 with a spot-welded steel plate to prevent soil and bricks from falling off in the future. Otherwise, when filling the core and placing small steel bars in the future, the core will need to be removed. When the prestressed pipe pile 2 passes through soil layers that are difficult to drive, such as coarse sand, strongly weathered rock, or moderately weathered rock, the pile tip 212 should be welded to the bottom of the pile 4 to allow the prestressed pipe pile 2 to better enter the bearing layer. Otherwise, the pile head may burst or a large area of ​​pipe piles may not be able to be constructed to the design elevation, resulting in a dense forest of tall piles.

[0032] Because the bearing capacity of the current pump station foundation soil is low and cannot meet the design requirements, it is necessary to use prestressed pipe pile foundation 2 to improve the bearing capacity of the foundation soil. Prestressed pipe pile foundation 2 technology is an effective foundation treatment method that can improve the bearing capacity of the foundation soil, reduce settlement, and improve structural stability. Therefore, the development of prestressed pipe pile foundation 2 technology to improve the bearing capacity of the foundation soil has important practical significance.

[0033] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and the inventive concept of this application, should be included within the scope of protection of this application.

Claims

1. A high bearing capacity foundation structure for a pump station comprising a concrete layer (1), a ground surface (6) and prestressed pipe piles (2), characterized in that, The ground (6) is located on the surface of the concrete layer (1), a plurality of prestressed pipe piles (2) are embedded in the concrete layer (1), the prestressed pipe pile (2) comprises a first section pipe pile (21), a second section pipe pile (22) and a welding point (5), the first section pipe pile (21) and the second section pipe pile (22) are welded by the welding point (5).

2. A pump station high bearing ground structure according to claim 1, characterized in that, The first section pipe pile (21) and the second section pipe pile (22) comprise a pile top (3) and a pile bottom (4).

3. A pump station high bearing ground structure according to claim 2, characterized in that, The pile top (3) of each first section pipe pile (21) is welded with a steel plate one (211), and the pile bottom (4) of each first section pipe pile (21) is welded with a pile tip (212).

4. The high bearing capacity subsoil structure of a pump station according to claim 2, characterized in that, The end of each second section pipe pile (22) away from the steel plate one (211) is welded with a steel plate two (221).

5. The pump station high bearing ground structure according to claim 2, wherein, The top end of each first section pipe pile (21) and second section pipe pile (22) is the pile top (3), and the end of each first section pipe pile (21) and second section pipe pile (22) away from the pile top (3) is the pile bottom (4).

Images