Prefabricated assembly type grouting anchoring foundation for emergency repair of electric power facilities after disasters

Abstract

The invention provides a prefabricated assembled grouting anchoring foundation for post-disaster rush repair of electric power facilities, and relates to the technical field of anchoring foundations, the prefabricated assembled grouting anchoring foundation comprises an annular fixing ring, a mechanical drill bit is arranged below the annular fixing ring, an adjusting nut is arranged above the mechanical drill bit, a grout outlet is formed below the annular fixing ring, a cement channel is formed in the grout outlet, and the cement channel is communicated with the mechanical drill bit. The device comprises an annular fixing ring, a slurry outlet is formed in the annular fixing ring, a cavity is formed in the slurry outlet, a ground leveling mechanism is arranged below the annular fixing ring, and the ground leveling mechanism can stably fix electric power facilities to the ground damaged after a disaster. The horizontal state of the annular fixing ring can be monitored in real time through the horizontal detector for the unsmooth ground damaged after a disaster, then the threaded rod is driven to stretch out and draw back by rotating the adjusting nut, and the levelness of the annular fixing ring is accurately adjusted.

Description

Technical Field

[0001] This invention belongs to the field of anchor foundation technology, and more specifically, it relates to a prefabricated assembled grouting anchor foundation for emergency repair of power facilities after a disaster. Background Technology

[0002] Power facilities are a general term for all kinds of equipment and systems that produce, transmit, distribute and use electrical energy. They are the core infrastructure to ensure power supply. They cover multiple key links, from power plants such as thermal, hydro and wind power generation, to high-voltage transmission lines and substations in the transmission link, to distribution lines and distribution transformers in the distribution link, and finally to electrical equipment such as electricity meters and distribution boxes at the user end. These facilities work together to form a complete chain from power production to end use, providing stable and reliable power support for industrial production, residential life and various social activities.

[0003] At least the following problems have been found in the current anchoring foundations: First, in post-disaster power facility repair scenarios, such as after natural disasters like earthquakes, floods, and typhoons, the ground at repair sites is often severely damaged, commonly exhibiting problems like subsidence, protrusions, cracks, or uneven, loose soil, creating a complex and uneven working environment. In such situations, it's crucial to quickly anchor power facilities to the ground to restore power. This issue directly leads to angular misalignment of the installed power facilities, requiring secondary adjustments that significantly delay the repair process. Furthermore, an uneven foundation can cause uneven stress on the power facilities, potentially leading to tilting, swaying, or even collapse during subsequent use due to insufficient structural stability. This further exacerbates the risk of power supply interruptions and adversely affects disaster recovery.

[0004] Secondly, in the post-disaster emergency repair work of power facilities, in addition to uneven ground, the soil after a disaster often becomes loose in structure and has reduced bearing capacity due to the impact of the disaster, forming a special soft foundation working environment. The consequence of this problem is that after the power facilities are installed, they are prone to loosening and displacement under the influence of the external environment, requiring repeated reinforcement work, increasing the workload and cost of emergency repairs; if the anchoring fails and the power facilities fall over, it will also cause secondary repairs, further prolonging the power outage time in the disaster area, seriously affecting the rapid restoration of emergency rescue, people's electricity use and production and living order in the disaster area. Summary of the Invention

[0005] To address the challenges posed by uneven ground conditions such as subsidence and looseness at power facility repair sites following natural disasters like earthquakes and floods, which can lead to angular misalignment during installation, this invention provides a prefabricated, assembled, grouting-anchored foundation for post-disaster power facility repair. This foundation addresses the issues of uneven ground conditions causing uneven stress on facilities, potentially leading to tilting or collapse, exacerbating power outages, and hindering disaster recovery.

[0006] A prefabricated, assembled, grouting anchoring foundation for post-disaster repair of power facilities includes an annular fixing ring, a mechanical drill bit below the annular fixing ring, an adjusting nut above the mechanical drill bit, a grout outlet below the annular fixing ring with a cement channel inside the grout outlet, a cavity above the grout outlet, a ground leveling mechanism below the annular fixing ring for fixing the power facilities to the damaged ground after the disaster, and an anchoring mechanism below the annular fixing ring for fixing the power facilities by pouring concrete into the grout outlet after they are inserted into the ground.

[0007] Preferably, the ground leveling mechanism includes a leveling instrument, which is fixedly mounted on an annular fixing ring. The annular fixing ring has an annular notch. A leveling cylinder is rotatably mounted on the annular fixing ring. The leveling cylinders are arranged in a ring around the annular fixing ring. A sliding groove is provided inside the leveling cylinder. An adjusting nut is rotatably mounted below the leveling cylinder. A thread is fixedly mounted on the inner wall of the adjusting nut. A threaded rod is slidably mounted inside the leveling cylinder. The threaded rod has a threaded groove and engages with the adjusting nut. A mechanical drill bit is mounted below the threaded rod.

[0008] Preferably, the anchoring mechanism includes a fixed base located below an annular fixed ring. A fixed connector is fixedly installed on the fixed base, and an annular hole is provided on the fixed connector. The fixed connectors are arranged in a ring around the fixed base. An underground pipe is fixedly installed within the annular hole on the fixed connector. A cement pouring channel is provided within the underground pipe. A grout outlet is fixedly installed below the underground pipe. A rubber sealing port is installed above the underground pipe. A grouting pump connection port is fixedly installed on the annular fixed ring. An annular diversion pipe is fixedly installed below the grouting pump connection port. A grouting channel is provided within the grouting pump connection port. An annular dispersion channel is provided within the annular diversion pipe. The channel within the grouting pump connection port connects to the annular diversion pipe. A sleeve is fixedly installed below the annular diversion pipe. An annular groove is provided within the sleeve. A grouting interface is slidably installed within the sleeve. The grout outlet is fixedly installed below the underground pipe. A limit ring is fixedly installed above the annular fixed ring. A steel pole is slidably installed within the limit ring. A fixing bolt is provided on the limit ring.

[0009] Compared with the prior art, the present invention has the following beneficial effects: In this invention, a ground leveling mechanism consisting of a leveling instrument, a leveling cylinder, an adjusting nut, and a threaded rod is provided. This mechanism can monitor the level of the annular fixing ring in real time on uneven ground damaged after a disaster. By rotating the adjusting nut to drive the threaded rod to extend and retract, the level of the annular fixing ring can be precisely adjusted. This effectively avoids the problem of power facilities collapsing immediately after installation due to ground undulations, ensuring that power facilities can be stably fixed on the ground after a disaster.

[0010] In this invention, an anchoring mechanism consisting of a fixed base, a fixed connector, an underground pipe, a grout outlet and a grouting pump connection port, an annular diversion pipe, a sleeve, and a grouting interface is provided. After the power facility is inserted underground, the cement grout from the external grouting pump is introduced into the annular diversion pipe through the grouting pump connection port, evenly distributed to various underground pipes, and finally injected into the ground through the grout outlet and diffused. After the cement grout solidifies, a firm connection between the anchoring foundation and the ground is achieved, which greatly improves the fixing strength of the power facility and meets the requirements of foundation stability for post-disaster emergency repairs.

[0011] In this invention, by providing fixed connectors arranged in a ring around a fixed base, and installing underground pipes in the annular holes of the fixed connectors, the underground pipes can be evenly distributed around the fixed base. Cement slurry can be diffused synchronously to different directions underground through the underground pipes, making the anchor foundation more uniformly stressed, avoiding local stress concentration that could lead to foundation damage, and further improving the structural stability of the entire power facility foundation, adapting to the complex ground stress environment after a disaster. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the annular fixing ring structure of the present invention; Figure 3 This is a schematic diagram of the annular diversion pipe structure of the present invention; Figure 4 This is a schematic diagram of the fixed base structure of the present invention; Figure 5 This is a schematic diagram of the steel pole structure of the present invention; Figure 6 This is a schematic diagram of the sleeve structure of the present invention; Figure 7 This is a schematic diagram of the underground pipeline structure of the present invention.

[0013] In the diagram, the correspondence between the component names and the attached drawing numbers is as follows: 1. Steel pole; 2. Annular fixing ring; 3. Limiting ring; 4. Fixing bolt; 5. Level gauge; 6. Grouting pump connection port; 7. Annular diversion pipe; 8. Sleeve; 9. Grouting interface; 10. Level adjusting cylinder; 11. Adjusting nut; 12. Threaded rod; 13. Mechanical drill bit; 14. Fixed base; 15. Fixed connector; 16. Rubber sealing port; 17. Underground pipe; 18. Grout outlet. Detailed Implementation

[0014] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0015] Please see Figures 1-7 This invention provides a prefabricated, assembled, grouting anchor foundation for post-disaster repair of power facilities, including an annular fixing ring 2. The annular fixing ring 2 is used to assist in fixing power facilities after a disaster. A mechanical drill bit 13 is provided below the annular fixing ring 2. The mechanical drill bit 13 is used to drive the anchoring device into the ground. An adjusting nut 11 is provided above the mechanical drill bit 13. The adjusting nut 11 is used to adjust the horizontal angle of the annular fixing ring 2. Because the road surface will be damaged after a natural disaster, it is easy to cause the installation angle of the power facilities to deviate, resulting in the collapse immediately after installation. A grout outlet 18 is provided below the annular fixing ring 2. A cement channel is provided in the grout outlet 18. A cavity is opened on the grout outlet 18. The grout outlet 18 can drive cement into the ground and connect with the ground to assist in fixing the power facilities.

[0016] A ground leveling mechanism is provided below the annular fixing ring 2. The ground leveling mechanism can stably fix the power facilities on the ground damaged after the disaster. An anchoring mechanism is provided below the annular fixing ring 2. After the power facilities are inserted into the ground, they can be fixed by pouring concrete into the grout outlet 18.

[0017] like Figure 1 , Figure 2 and Figure 4 As shown, the ground leveling mechanism includes a leveling instrument 5, which is fixedly installed on an annular fixing ring 2. The leveling instrument 5 is used to measure the horizontal angle of the annular fixing ring 2. An annular notch is provided on the annular fixing ring 2. A leveling cylinder 10 is rotatably installed on the annular fixing ring 2. The leveling cylinders 10 are arranged in a ring with the annular fixing ring 2 as the center. A sliding groove is provided inside the leveling cylinder 10. An adjusting nut 11 is rotatably installed below the leveling cylinder 10. A thread is fixedly installed on the inner wall of the adjusting nut 11. A threaded rod 12 is slidably installed inside the leveling cylinder 10. A threaded groove is provided on the threaded rod 12. The threaded rod 12 meshes with the adjusting nut 11. The adjusting nut 11 can adjust the levelness of the annular fixing ring 2 by meshing its internal thread with the surface of the threaded rod 12. A mechanical drill bit 13 is installed below the threaded rod 12. When it is necessary to fix electrical facilities, the annular fixing ring 2 is fixed to the ground by the mechanical drill bit 13, and then the length of the threaded rod 12 extending out of the leveling cylinder 10 is adjusted by rotating the adjusting nut 11.

[0018] like Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the anchoring mechanism includes a fixed base 14 located below the annular fixed ring 2. A fixing connector 15 is fixedly installed on the fixed base 14. The fixing connector 15 has an annular hole and is arranged in a ring around the fixed base 14. An underground pipe 17 is fixedly installed within the annular hole on the fixing connector 15. A cement pouring channel is provided within the underground pipe 17. A grout outlet 18 is fixedly installed below the underground pipe 17. A rubber sealing port 16 is installed above the underground pipe 17. The rubber sealing port 16 is used to seal the underground pipe 17 and can ensure safe operation. When the grout outlet 18 is struck, it forms a buffer. The rubber seal 16 can be removed from the underground pipe 17. A grouting pump connection port 6 is fixedly installed on the annular fixing ring 2. The grouting pump connection port 6 can be connected to an external grouting pump. An annular diversion pipe 7 is fixedly installed below the grouting pump connection port 6. A grouting channel is opened in the grouting pump connection port 6. An annular dispersion channel is opened in the annular diversion pipe 7. The channel in the grouting pump connection port 6 is connected to the annular diversion pipe 7. A sleeve 8 is fixedly installed below the annular diversion pipe 7. An annular groove is opened in the sleeve 8. Cement injected into the grouting pump connection port 6 by the external grouting pump is used for this purpose. The grout is distributed to each sleeve 8 through the annular diversion pipe 7. A grouting interface 9 is slidably installed inside each sleeve 8. Pulling down the grouting interface 9 allows it to connect with the underground pipe 17. A grout outlet 18 is fixedly installed below the underground pipe 17. A limit ring 3 is fixedly installed above the annular fixing ring 2. A steel pole 1 is slidably installed inside the limit ring 3. The limit ring 3 restricts the position of the steel pole 1. After the ground leveling mechanism finds the angle of the annular fixing ring 2, a crane is used to place the steel pole 1 into the limit ring 3. A fixing bolt 4 is provided on the limit ring 3, which allows the steel pole 1 to be hoisted to its final position. After positioning, the steel pole 1 is fixed to the limiting ring 3. The steel pole 1 is then fixed with the help of the ground leveling mechanism. Since the threaded rod 12 installs the annular fixing ring 2 on the ground, the grout outlet 18 will also penetrate into the ground. At this time, the steel pole 1 is hoisted into the limiting ring 3 and fixed with the fixing bolt 4. The rubber sealing port 16 is removed and the grouting pump connection port 6 is connected to the external grouting pump. The grouting interface 9 is pulled down and connected to the underground pipe 17. The cement grout injected into the grouting pump connection port 6 can be dispersed by the annular diversion pipe 7 into each underground pipe 17, and then diffused outward from the grout outlet 18 to form a reinforced connection with the ground.

[0019] Working principle: The first step involves using the mechanical drill bit 13 installed at the bottom of the threaded rod 12 below the annular fixing ring 2 to initially drive the entire anchoring foundation device into the post-disaster damaged ground through mechanical driving force, laying the foundation for subsequent installation. Next, relying on the leveling instrument 5 fixedly installed on the annular fixing ring 2, the level status of the annular fixing ring 2 is monitored in real time. Due to the unevenness of the ground after the disaster, such as collapse and protrusion, if it is not leveled, it may cause the power facilities to shift or even collapse after installation. Therefore, it is necessary to rotate the adjusting nut 11 with threads on the inner wall below the leveling cylinder 10, and use the meshing action of the adjusting nut 11 and the threaded groove on the surface of the threaded rod 12 to gradually adjust the length of the threaded rod 12 extending out of the leveling cylinder 10 until the leveling instrument 5 shows that the annular fixing ring 2 is in a completely level state. At this time, the grout outlet 18 below the annular fixing ring 2 also penetrates into the ground synchronously with the device, completing the ground leveling and the initial stable fixation of the device.

[0020] The second step involves confirming that the annular fixing ring 2 is horizontal. A crane is then used to slowly lift the steel pole 1 to be installed, aligning it with the limiting ring 3 fixed above the annular fixing ring 2. The steel pole 1 is then smoothly placed into the inner sliding space of the limiting ring 3. Once the steel pole 1 has been lifted to the preset height and its verticality meets the requirements, the fixing bolts 4 on the limiting ring 3 are tightened. The axial clamping force of the fixing bolts 4 secures the steel pole 1 to the limiting ring 3, preventing the steel pole 1 from shaking or shifting during subsequent grouting. Simultaneously, the leveled annular fixing ring 2 indirectly ensures the vertical installation of the steel pole 1.

[0021] The third step involves first removing the rubber sealing port 16 installed above the underground pipe 17, then pulling down the grouting interface 9, which is slidably installed inside the sleeve 8 below the annular diversion pipe 7, to precisely connect it with the underground pipe 17 fixed on the fixed base 14 by the fixed connector 15, forming a complete cement slurry delivery channel. Next, the external grouting pump is connected to the grouting pump connection port 6 on the annular fixed ring 2, and the grouting pump is started to inject cement slurry into the grouting pump connection port 6. The cement slurry will first enter the annular diversion pipe 7 through the built-in channel of the grouting pump connection port 6, and then, using the annular dispersion channel in the annular diversion pipe 7, the cement slurry will be evenly distributed to each sleeve 8 and the connected grouting interface 9, and then transported to the grout outlet 18 below through the cement pouring channel in the underground pipe 17. Finally, the cement slurry will seep outward from the grout outlet 18 into the underground soil. After the cement slurry has completely solidified, it will tightly bond the entire anchor foundation to the ground, forming a solid anchor structure and achieving stable fixation of the power facilities on the ground after the disaster.

[0022] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A prefabricated, assembled, grouting anchor foundation for post-disaster repair of power facilities, comprising an annular fixing ring (2), characterized in that: A mechanical drill bit (13) is provided below the annular fixing ring (2), an adjusting nut (11) is provided above the mechanical drill bit (13), a slurry outlet (18) is provided below the annular fixing ring (2), a cement channel is provided inside the slurry outlet (18), and a cavity is opened on the slurry outlet (18). The annular fixing ring (2) is provided with a ground leveling mechanism below it. The ground leveling mechanism can fix the power facilities on the ground damaged after the disaster. The annular fixing ring (2) is provided with an anchoring mechanism below it. The anchoring mechanism can fix the power facilities by pouring concrete into the grout outlet (18) after they are inserted into the ground.

2. The prefabricated assembled grouting anchor foundation for post-disaster emergency repair of power facilities as described in claim 1, characterized in that, The ground leveling mechanism includes a level detector (5), which is fixedly installed on an annular fixing ring (2). An annular notch is provided on the annular fixing ring (2), and a level adjusting cylinder (10) is rotatably installed on the annular fixing ring (2).

3. The prefabricated assembled grouting anchor foundation for post-disaster emergency repair of power facilities as described in claim 2, characterized in that, The horizontal adjusting cylinder (10) is arranged in a ring with the annular fixing ring (2) as the center. A sliding groove is provided inside the horizontal adjusting cylinder (10). An adjusting nut (11) is rotatably installed below the horizontal adjusting cylinder (10). A thread is fixedly installed on the inner wall of the adjusting nut (11).

4. The prefabricated assembled grouting anchor foundation for post-disaster emergency repair of power facilities as described in claim 3, characterized in that, A threaded rod (12) is slidably installed inside the horizontal adjusting cylinder (10). The threaded rod (12) has a threaded groove. The threaded rod (12) meshes with the adjusting nut (11). The mechanical drill bit (13) is installed below the threaded rod (12).

5. The prefabricated assembled grouting anchor foundation for post-disaster emergency repair of power facilities as described in claim 4, characterized in that, The anchoring mechanism includes a fixed base (14), which is located below the annular fixed ring (2). A fixed connector (15) is fixedly installed on the fixed base (14), and an annular hole is provided on the fixed connector (15).

6. The prefabricated assembled grouting anchor foundation for post-disaster emergency repair of power facilities as described in claim 5, characterized in that, The fixed connectors (15) are arranged in a ring around the fixed base (14). An underground pipe (17) is fixedly installed in the annular hole opened on the fixed connectors (15). A cement pouring channel is opened in the underground pipe (17).

7. The prefabricated assembled grouting anchor foundation for post-disaster emergency repair of power facilities as described in claim 6, characterized in that, The grout outlet (18) is fixedly installed below the underground pipe (17), a rubber sealing port (16) is installed above the underground pipe (17), a grouting pump connection port (6) is fixedly installed on the annular fixing ring (2), and an annular diversion pipe (7) is fixedly installed below the grouting pump connection port (6).

8. The prefabricated assembled grouting anchor foundation for post-disaster emergency repair of power facilities as described in claim 7, characterized in that, A grouting channel is provided in the grouting pump connection port (6), and an annular dispersion channel is provided in the annular diversion pipe (7). The channel in the grouting pump connection port (6) is connected to the annular diversion pipe (7), and a sleeve (8) is fixedly installed below the annular diversion pipe (7).

9. The prefabricated assembled grouting anchor foundation for post-disaster emergency repair of power facilities as described in claim 8, characterized in that, The sleeve (8) has an annular groove, and the sleeve (8) has a slidably installed grouting interface (9). The grout outlet (18) is fixedly installed below the underground pipeline (17).

10. The prefabricated assembled grouting anchor foundation for post-disaster emergency repair of power facilities as described in claim 9, characterized in that, A limiting ring (3) is fixedly installed above the annular fixing ring (2), and a steel pole (1) is slidably installed inside the limiting ring (3). A fixing bolt (4) is provided on the limiting ring (3).

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