Prestressed anchorage device system applied to nuclear power station
By introducing connecting pipes and slurry replenishing pipes into the anchor system, the problem of water excretion during vertical anchor grouting is solved, and the compact grouting and performance improvement of the anchor system is achieved.
Patent Information
- Application Number
- CN202422363402.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-27
AI Technical Summary
In the prior art, the concrete slurry is prone to separating water due to its high height during grouting, which affects the firmness and strength of the anchor system.
The design of connecting pipes and slurry replenishing pipes is adopted to grout upwards through the bottom, and the slurry replenishing pipes and connecting pipes are used to slurry the upper anchors to avoid the separating of water caused by gravity of concrete and ensure that the grout is compact.
Ensure the firmness and strength of the anchor system, avoid the problem of grouting due to water separation, and improve the overall performance of the anchor system.
Smart Images
Figure CN223214559U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a prestressed anchor system, in particular to a prestressed anchor system applied to a nuclear power station. Background Art
[0002] In existing anchor systems, when grouting vertical anchors, due to their high height, the concrete slurry in the top anchor is prone to water segregation due to gravity and other factors. Once water segregation occurs, the concrete slurry in the top anchor is not densely filled. Once the grouting is not dense, it will affect the stability and strength of the entire anchor system. To this end, a prestressed anchor system for nuclear power plants is proposed. Utility Model Content
[0003] The purpose of the utility model is to solve the above problems and to provide a prestressed anchor system for use in nuclear power plants.
[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a prestressed anchor system for use in nuclear power plants, comprising an anchor plate, a cap installed on the anchor plate, and an anchor plate installed between the anchor plate and the cap; the system is characterized in that it also includes a connecting pipe connected to the anchor plate and a grouting pipe connected to the connecting pipe for grouting.
[0005] Further preferably, the connecting pipe is provided with a joint for connecting to the grouting pipe.
[0006] Further preferably, the joint and the connecting pipe are integrally cast.
[0007] Further preferably, the joint is mounted on the connecting pipe by welding and the joint and the connecting pipe are in a vertical state.
[0008] More preferably, it also includes an overflow groove provided on the anchor plate for connecting the anchor plate and the cavity in the cap.
[0009] More preferably, the method further comprises a discharge hole provided on the anchor plate and the cap, wherein a plug is installed on the discharge hole.
[0010] More preferably, the method further comprises a clamping plate installed on the anchor plate.
[0011] The beneficial effects of the present invention are as follows: through the arrangement of the connecting pipe and the grouting pipe, when grouting is carried out from the bottom upwards, the anchor at the upper end is grouted through the grouting pipe and the connecting pipe, thereby avoiding loose grouting of the upper anchor and avoiding the phenomenon of water seepage and segregation of concrete due to its own gravity due to the high height of the upper anchor, ensuring dense grouting and guaranteeing the firmness and strength of the entire anchor system. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Attachment Figure 1 It is a schematic diagram of the explosion structure of the utility model;
[0013] Attachment Figure 2 It is a structural diagram of the anchor plate in the utility model;
[0014] Attachment Figure 3 It is a structural schematic diagram of another embodiment of the connecting pipe of the utility model.
[0015] Legend: 1. Anchor plate; 2. Cap; 3. Anchor plate; 4. Connecting pipe; 5. Grouting pipe; 6. Joint; 7. Overflow trough; 8. Discharge hole; 10. Clamp. DETAILED DESCRIPTION
[0016] Hereinafter, we will further explain the prestressed anchor system for use in a nuclear power plant according to the present invention with reference to the accompanying drawings.
[0017] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.
[0018] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0019] See Figure 1-3 As shown in the figure, a prestressed anchor system for use in a nuclear power plant comprises an anchor plate 1, a cap 2 mounted on the anchor plate 1, and an anchor plate 3 mounted between the anchor plate 1 and the cap 2; the system is characterized in that it further comprises a connecting pipe 4 connected to the anchor plate 1 and a grouting pipe 5 connected to the connecting pipe 4 for grouting;
[0020] By setting up the connecting pipe 4 and the grouting pipe 5, when grouting is carried out from the bottom upward, the anchor at the upper end is grouted through the grouting pipe 5 and the connecting pipe 4, so as to avoid the upper anchor grouting being not dense, and to avoid the upper anchor grouting causing the concrete to ooze out water and segregate due to its own gravity due to the high height, thereby ensuring the dense grouting and guaranteeing the firmness and strength of the entire anchor system and other performances.
[0021] In one embodiment, the connecting pipe 4 is provided with a joint 6 for connecting to the grouting pipe 5. The joint 6 is used to connect to the grouting pipe 5. The joint 6 and the grouting pipe 5 can be connected by threads. The grouting pipe 5 can be an integral pipe or assembled from multiple sections of pipes.
[0022] In one embodiment, the joint 6 is integrally cast with the connecting pipe 4. The joint 6 is directly integrally cast with the connecting pipe 4. The integral casting does not require welding. When used in nuclear power sites such as nuclear power plants, the integral casting method can be adopted, and there is no need to fix it by welding, so as to avoid being limited by the high welding quality requirements of nuclear power sites when using welding fixation.
[0023] In one embodiment, the joint 6 is installed on the connecting pipe 4 by welding and is in a vertical state between the joint 6 and the connecting pipe 4. The joint 6 and the connecting pipe 4 can be set in a split type. The joint 6 is installed on the connecting pipe 4 by welding and is in a vertical state to avoid the steel strand from accidentally passing through the hole of the joint 6 when passing the steel strand.
[0024] In one embodiment, it also includes an overflow groove 7 provided on the anchor plate 3 for connecting the anchor plate 1 and the cavity inside the cap 2; through the setting of the overflow groove 7, it is used to connect the anchor plate 1 and the cap 2, so that when grouting the anchor, the concrete slurry can flow into the cap 2 through the overflow groove 7 and fill the cap 2, and the cap 2 can be grouted at the same time, completing the grouting of the entire anchor system at one time and ensuring the fullness of the grouting.
[0025] In one embodiment, it further includes a discharge hole 8 provided on the anchor plate 1 and the cap 2, and a plug is installed on the discharge hole 8; through the provision of the discharge hole 8, when grouting is performed, the plug is removed to discharge air and water until the discharge hole 8 is filled with concrete slurry after the concrete slurry is discharged, and then the discharge hole 8 is blocked by the plug to prevent the concrete slurry from overflowing.
[0026] In one embodiment, a clamping plate 10 mounted on the anchor plate 3 is further included. The clamping plate 10 is connected to the steel strand and is used to fix the steel strand on the anchor plate 3 .
[0027] When the utility model is in use: after the anchor is installed, the anchor system is grouting. During the grouting, grouting is carried out through the anchor at the bottom of the entire anchor system, and the slurry is filled from bottom to top. During the grouting process, if water comes out of the discharge hole 8 on the upper anchor plate 1, it means that the concrete slurry in the anchor system has water seepage and segregation. At this time, it is necessary to grout the anchor at the top to ensure that the concrete in the anchor is densely filled. The concrete slurry is passed through the upper grouting pipe 5 into the connecting pipe 4 to drain the water on the upper part of the anchor from the anchor plate. 1 until the discharge hole 8 on the anchor plate 1 is discharged with concrete slurry, and the plug is installed on the discharge hole 8 of the anchor plate 1 to block it. At this time, during the continuous grouting process, the concrete slurry flows into the cap 2 through the overflow groove 7, and the water and air in the cap 2 are discharged through the discharge hole 8 on the top of the cap 2. After the concrete slurry is discharged from the discharge hole 8 of the cap 2, the grouting is stopped, and the plug is installed on the discharge hole 8 of the cap 2 to block the discharge hole 8. At this time, the grouting is completed, and the concrete in the entire anchor is filled densely.
[0028] The protection scope of the present invention is not limited to the above embodiment and its variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment fall within the protection scope of the present invention.
Claims
1. A prestressed anchor system for use in a nuclear power plant, comprising an anchor plate (1), a cap (2) mounted on the anchor plate (1), and an anchor plate (3) mounted between the anchor plate (1) and the cap (2); wherein: It also includes a connecting pipe (4) connected to the anchor plate (1) and a grouting pipe (5) connected to the connecting pipe (4) for grouting.
2. The prestressed anchor system for use in a nuclear power plant according to claim 1, characterized in that: The connecting pipe (4) is provided with a joint (6) for connecting to the grouting pipe (5).
3. The prestressed anchor system for use in a nuclear power plant according to claim 2, characterized in that: The joint (6) and the connecting pipe (4) are integrally cast.
4. The prestressed anchor system for use in a nuclear power plant according to claim 2, characterized in that: The joint (6) is mounted on the connecting pipe (4) by welding, and the joint (6) and the connecting pipe (4) are in a vertical state.
5. The prestressed anchor system for use in a nuclear power plant according to claim 1, characterized in that: It also includes a grout overflow groove (7) provided on the anchor plate (3) for connecting the anchor pad (1) with the cavity in the cap (2).
6. The prestressed anchor system for use in a nuclear power plant according to claim 1, characterized in that: It also includes a discharge hole (8) provided on the anchor plate (1) and the cap (2), and a plug is installed on the discharge hole (8).
7. The prestressed anchor system for use in a nuclear power plant according to claim 5, characterized in that: Also included is a clamping plate (10) mounted on the anchor plate (3).