Prefabricated combined pipeline concrete buttress structure

Abstract

The utility model relates to the technical field of flexible connector water supply pipelines, in particular to a prefabricated combined type pipeline concrete buttress structure which comprises a first pier, a second pier, a third pier and a fourth pier which are formed in a prefabricated mode. One side, close to the water supply pipeline, of the first pier is provided with a notch corresponding to the pipeline interface; the second piers, the third piers and the fourth piers are sequentially connected between the first piers and the slope soil through mortise and tenon joint matching, and the number of the second piers is at least one; according to the utility model, the buttress is prefabricated, so that the concrete reaches the required strength in advance, and the buttress combination formed by the first pier, the second pier, the third pier and the fourth pier is designed to meet different pipeline structure forms, so that the time for waiting for the buttress strength can be greatly shortened, and water supply can be recovered in time; and the method has extremely important social benefits and economic benefits.

Description

Technical Field

[0001] This utility model relates to the technical field of flexible interface water supply pipelines, and in particular to a prefabricated composite pipeline concrete support structure. Background Technology

[0002] Water supply pipelines are generally pressure pipes, where the water pressure acts evenly on the pipe wall. When the water flow direction changes (such as through elbows at socket joints, the top of T-junctions, or the top of pipe plugs), an outward thrust is generated on the pipe wall. If this thrust exceeds the internal water pressure that the joint can withstand, the pipeline will loosen and disconnect at the joint, leading to water leaks. To resist this outward thrust and prevent the pipeline from loosening and disconnecting at the joint, supports must be installed at key points in the pipeline. The combined water pressure from the pipeline is transmitted to the soil through the supports, where it is balanced by the soil's reaction force.

[0003] Currently, the renovation and emergency repair projects for flexible joint water supply pipelines all adopt the construction method of on-site casting of pipeline supports. That is, after the pipeline is installed, the site is cleaned and formwork is supported at the support location, and then concrete is poured on-site. The concrete takes about 8 to 10 hours to solidify. This method generally requires at least 12 hours after the support is poured before water supply can be attempted. In water supply pipeline renovation and emergency repair projects, this seriously affects the timeliness of restoring water supply, prolongs the water supply time, and causes residents to be unable to use tap water normally for a long time. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a prefabricated combined pipeline concrete support structure, which can significantly shorten the waiting time for the support to strengthen and ensure timely restoration of water supply, thus having extremely important social and economic benefits.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] This utility model discloses a prefabricated composite concrete pipe support structure, comprising prefabricated pier No. 1, pier No. 2, pier No. 3, and pier No. 4. Pier No. 1 is abutted against one side of a water supply pipe, and a notch is provided on the side of pier No. 1 near the water supply pipe corresponding to the pipe interface. Pier No. 2, pier No. 3, and pier No. 4 are sequentially connected between pier No. 1 and the slope soil by mortise and tenon joints. There is at least one pier No. 2. Pier No. 3 and pier No. 4 are inclined to fit each other.

[0007] In one possible technical solution, the No. 1 pier and the No. 2 pier, as well as the No. 2 pier and the No. 3 pier, are vertically aligned.

[0008] In the above technical solution, the No. 1 pier is square in shape; its sides on both sides of the notch are flat; and its side opposite the notch is convex.

[0009] In the above technical solution, the No. 2 pier is square in shape; the side closest to the No. 1 pier is concave; and the side opposite the concave side is convex.

[0010] In the above technical solution, the side of the No. 3 pier closest to the No. 2 pier is a concave surface; the side opposite the concave surface is a convex surface with an inclined angle; and the sides on both sides of the convex surface are wedge-shaped surfaces.

[0011] In the above technical solution, the tilt angle satisfies: 90° < tilt angle < 180°.

[0012] In the above technical solution, the side of the fourth pier closest to the third pier is a concave surface; the width dimensions of the first, second, and third piers are equal; the width dimension of the fourth pier is greater than the width dimension of the first, second, or third pier.

[0013] In the above technical solution, the dimensions of the No. 1 pier, No. 2 pier, No. 3 pier and No. 4 pier in the height direction are equal.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can make the concrete reach the required strength in advance by prefabricating the support piers. By designing the support pier combination of No. 1, No. 2, No. 3 and No. 4, it can meet different pipeline structure forms, which can greatly shorten the waiting time for the support piers to reach strength. In water supply pipeline renovation and emergency repair projects, it can restore water supply in a timely manner, which has extremely important social and economic benefits. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the prefabricated combined pipe concrete support structure according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the prefabricated combined pipe concrete support structure in use according to an embodiment of this utility model;

[0017] Attached diagram labels: 1-Pier No. 1; 2-Pier No. 2; 3-Pier No. 3; 4-Pier No. 4; 1-Pier No. 1. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0019] like Figures 1 to 2As shown in the figure, a prefabricated combined pipe concrete support structure according to an embodiment of the present invention includes prefabricated No. 1 pier 1, No. 2 pier 2, No. 3 pier 3 and No. 4 pier 4. No. 1 pier 1 is abutted against one side of the water supply pipe, and a notch is provided on the side of No. 1 pier 1 close to the water supply pipe corresponding to the pipe interface. No. 2 pier 2, No. 3 pier 3 and No. 4 pier 4 are connected to No. 1 pier 1 and the slope soil in sequence by mortise and tenon joints. There is at least one No. 2 pier. No. 3 pier 3 and No. 4 pier 4 are inclined to fit each other.

[0020] This utility model enables concrete to reach the required strength in advance through prefabrication of supports. By designing supports 1, 2, 3, and 4 to form a combination, it can meet different pipeline structure requirements, greatly shortening the waiting time for the supports to reach their strength. In water supply pipeline renovation and emergency repair projects, it can restore water supply in a timely manner, which has extremely important social and economic benefits.

[0021] If precast concrete supports were made as a single unit, the concrete volume would be too large, making on-site hoisting and installation inconvenient, and the fixed dimensions would hinder on-site adjustments. Therefore, precast modular pipe supports are used. These modular supports vary in size to fully meet various on-site construction conditions. The tenon and mortise design of the modular supports ensures they form a cohesive whole, preventing slippage between supports due to pipe vibrations caused by unstable water pressure and flow velocity within the pipeline. The recessed design of Support 1 (No. 1) ensures that the force applied by the support is directly applied to the pipe and fittings, avoiding localized stress on the sockets and potential damage. Support 2 (No. 2) serves as a connector; the length of the support can be adjusted by changing the number of Support 2 units according to actual site conditions. Supports 3 (No. 3) and 4 (No. 4) are inclined together to prevent gaps at the connection points, ensuring a tighter connection. Furthermore, the inclusion of Support 3 (No. 3) allows for fine-tuning of the overall support length.

[0022] In one embodiment, the first pier 1 and the second pier 2, and the second pier 2 and the third pier 3, are vertically aligned. Specifically, the first pier 1 is generally square; its sides on both sides of the notch are flat; the side opposite the notch is convex. The second pier 2 is generally square; its side closest to the first pier 1 is concave; the side opposite the concave side is convex. The third pier 3 has a concave side closest to the second pier 2; the side opposite the concave side is a convex surface with an inclined angle, where the inclined angle satisfies: 90° < inclination angle. <180°; the sides on both sides of the convex surface are wedge-shaped; the side of pier 4 closest to pier 3 is concave; the width dimensions of pier 1, pier 2, and pier 3 are equal; the width dimension of pier 4 is greater than the width dimension of pier 1, pier 2, or pier 3; by increasing the width dimension of pier 4, the contact area with the ditch slope is increased, the local stress is reduced, and the damage to the original soil structure of the ditch slope is avoided due to the stress on the piers; the height dimensions of pier 1, pier 2, pier 3, and pier 4 are equal.

[0023] The prefabricated composite concrete pipe support structure of this utility model embodiment, such as Figure 2 As shown, during construction, firstly, piers 1, 2, 3, and 4 of suitable size and specifications are prefabricated according to the on-site construction conditions of the pipeline, allowing the concrete to reach the required strength in advance. After the pipeline is installed, the site is cleaned at the location where the piers are to be set. Then, pier 1 is installed against one side of the water supply pipeline, with its notch corresponding to the pipe interface of the water supply pipeline. The length of the overall combined pipeline concrete pier structure is determined based on the distance between pier 1 and the slope soil, and the number of piers 2 is selected accordingly. Piers 2, 3, and 4 are then connected sequentially between pier 1 and the slope soil using mortise and tenon joints, thus completing the installation of the prefabricated combined pipeline concrete pier structure. This effectively improves installation efficiency and shortens the time to restore water supply.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A precast composite concrete pipe support structure, characterized in that, The project includes prefabricated piers No. 1 (1), No. 2 (2), No. 3 (3), and No. 4 (4). Pier No. 1 (1) is set against one side of the water supply pipe, and a notch is provided on the side of Pier No. 1 (1) near the water supply pipe corresponding to the pipe interface. Pier No. 2 (2), No. 3 (3), and No. 4 (4) are connected to Pier No. 1 (1) and the slope soil in sequence by mortise and tenon joints. There is at least one Pier No. 2 (2). Pier No. 3 (3) and Pier No. 4 (4) are inclined to fit each other.

2. The precast composite concrete pipe support structure as described in claim 1, characterized in that, The No. 1 pier (1) and the No. 2 pier (2), as well as the No. 2 pier (2) and the No. 3 pier (3), are vertically aligned.

3. The precast composite concrete pipe support structure as described in claim 2, characterized in that, The No. 1 pier (1) is square in shape; its sides on both sides of the notch are flat; and its side opposite the notch is convex.

4. The precast composite concrete pipe support structure as described in claim 3, characterized in that, The second pier (2) is square in shape; the side closest to the first pier (1) is concave; the side opposite the concave side is convex.

5. The precast composite concrete pipe support structure as described in claim 4, characterized in that, The side of the No. 3 pier (3) closest to the No. 2 pier (2) is a concave surface; the side opposite the concave surface is a convex surface with an inclined angle; and the sides on both sides of the convex surface are wedge-shaped surfaces.

6. The precast composite concrete pipe support structure as described in claim 5, characterized in that, The tilt angle satisfies the following condition: 90° < tilt angle < 180°.

7. The precast composite concrete pipe support structure as described in claim 6, characterized in that, The side of the fourth pier (4) near the third pier (3) is concave; the width dimensions of the first pier (1), the second pier (2), and the third pier (3) are equal; the width dimension of the fourth pier (4) is greater than the width dimension of the first pier (1), the second pier (2), or the third pier (3).

8. The precast composite concrete pipe support structure as described in claim 7, characterized in that, The dimensions of the No. 1 pier (1), No. 2 pier (2), No. 3 pier (3) and No. 4 pier (4) in the height direction are equal.

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