Structure of newly-added tee well on large-diameter pipeline

Abstract

This utility model relates to a manhole structure, belonging to the field of pipeline construction technology. Specifically, it is a structure for adding a tee manhole above a large-diameter pipeline. It includes cast-in-place piles on both sides of the existing pipeline, with a bearing plate fixedly connected to the upper surface of the piles. It also includes a manhole body mounted on the bearing plate, with a new pipeline opening on one side and an inspection port on the top. A pre-reserved opening is formed through the upper surface of the bearing plate, with an opening side beam on the inner wall of the opening, which contacts the existing pipeline. This utility model retains the manhole form while avoiding the additional structural load falling on the original pipeline, reducing its impact. It solves the problem that existing traditional manhole forms cannot meet the bearing capacity of the manhole and are prone to damaging the original pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction technology, and in particular to a structure for adding a tee manhole above a large-diameter pipeline. Background Technology

[0002] A manhole is a method of adding a maintenance well above an existing pipeline to facilitate the interruption of flow in the existing pipeline. It is suitable for the inspection, modification and reconstruction of existing pipelines.

[0003] In existing technologies, when a new pipeline needs to connect to an existing pipeline, a manhole is used. However, both the existing and new pipelines in this project are large-diameter gravity drainage pipelines, which are quite heavy. The traditional manhole design cannot meet the bearing capacity of the manhole and is prone to damaging the existing pipeline. Therefore, a structure with a new tee manhole above a large-diameter pipeline is proposed to solve the above problems. Utility Model Content

[0004] To address the aforementioned technical issues, this utility model proposes a structure for adding a T-junction manhole above a large-diameter pipe. This retains the manhole design while preventing the load of the new structure from falling on the original pipe, thus reducing its impact.

[0005] The technical solution to achieve the purpose of this utility model is: a structure for adding a tee well above a large-diameter pipeline, including cast-in-place piles set on both sides of the original pipeline, a bearing plate fixedly connected to the upper surface of the cast-in-place piles, and further including;

[0006] The main body of the manhole is mounted on the support plate. A new pipe opening is provided on one side of the main body of the manhole, and an inspection port is provided on the top of the main body of the manhole.

[0007] A pre-reserved opening is made through the upper surface of the support plate, and the inner wall of the pre-reserved opening is provided with an opening side beam, which is in contact with the existing pipeline.

[0008] In some embodiments, a support plate is fixedly connected to one side of the main body of the well, an anti-settlement column is fixedly connected to the lower surface of the support plate, and a bottom column is slidably connected to the outer surface of the anti-settlement column.

[0009] In some embodiments, the lower surface of the base column is fixedly connected to the upper surface of the bearing plate, and an anti-settlement spring is fixedly connected to the inner bottom wall of the base column, with one end of the anti-settlement spring fixedly connected to the bottom end of the anti-settlement column.

[0010] Compared with existing technologies, the significant advantages of this invention are:

[0011] This utility model retains the characteristics of the saddle shaft, allowing for connection to existing pipelines without interruption of flow; it avoids additional structural loads falling on the original pipeline, reducing the impact on the original pipeline; and the construction of the newly connected pipeline is convenient (suitable for trenching or pipe jacking construction).

[0012] This solves the problem that the existing traditional manhole design cannot meet the bearing capacity of the manhole and is prone to damaging the original pipeline. Attached Figure Description

[0013] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a schematic diagram of the main structure provided in one embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the reserved opening (top view) structure provided in one embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the anti-settlement column (sectional view) structure provided in one embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Cast-in-place piles; 2. Bearing plate; 3. Main body of the manhole; 4. Newly built pipe opening; 5. Inspection opening; 6. Reserved opening; 7. Side beam of the opening; 8. Support plate; 9. Anti-settlement column; 10. Bottom column; 11. Anti-settlement spring. Detailed Implementation

[0019] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0020] This utility model provides an improved structure for adding a tee manhole above a large-diameter pipe. The technical solution of this utility model is as follows:

[0021] like Figure 1 As shown, a structure for adding a tee manhole above a large-diameter pipe includes cast-in-place piles 1 set on both sides of the original pipe, a bearing plate 2 fixedly connected to the upper surface of the cast-in-place piles 1, the bearing plate 2 and the cast-in-place piles 1 can be integrally formed, and also includes;

[0022] The main body 3 of the manhole is installed on the support plate 2. A new pipe opening 4 is provided on one side of the main body 3 and an inspection port 5 is provided on the top of the main body 3. The construction of connecting to the existing pipeline does not require interruption of flow. At the same time, the construction of the new pipeline is convenient (suitable for trenching or pipe jacking construction).

[0023] A reserved opening 6 is made through the upper surface of the bearing plate 2. The inner wall of the reserved opening 6 is provided with an opening side beam 7. The opening side beam 7 provides reinforcement and support to prevent the original pipeline from bearing excessive pressure. The opening side beam 7 is in contact with the original pipeline.

[0024] like Figure 2 and Figure 3 As shown, in one embodiment, a support plate 8 is fixedly connected to one side of the main body 3 of the horse-riding well, an anti-settlement column 9 is fixedly connected to the lower surface of the support plate 8, and a bottom column 10 is slidably connected to the outer surface of the anti-settlement column 9.

[0025] In one embodiment, the lower surface of the base column 10 is fixedly connected to the upper surface of the bearing plate 2, and an anti-settlement spring 11 is fixedly connected to the inner bottom wall of the base column 10. One end of the anti-settlement spring 11 is fixedly connected to the bottom end of the anti-settlement column 9. When settlement occurs after long-term use, the anti-settlement spring 11 will offset the gravity of the manhole to a certain extent, alleviate the settlement amplitude, ensure the construction quality and the service life of the manhole and the original pipeline.

[0026] The specific working method is as follows: When constructing a new tee manhole structure above a large-diameter pipeline, firstly, four bored piles are added to both sides of the existing pipeline as the foundation of the manhole. After setting the bearing plate 2, the side beam 7 of the opening is set at the reserved opening 6. Then, the main body 3 of the manhole is installed to complete the installation. This device retains the characteristics of the manhole, and can be connected to the existing pipeline without interrupting the flow; it avoids the new structural load falling on the original pipeline, reducing the impact on the original pipeline; the construction of the newly connected pipeline is convenient (suitable for trenching or pipe jacking construction).

[0027] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A structure for adding a tee manhole above a large-diameter pipeline, comprising cast-in-place piles (1) installed on both sides of the existing pipeline, characterized in that: The upper surface of the cast-in-place pile (1) is fixedly connected to a bearing plate (2), and also includes; The main body (3) of the saddle manhole is set on the support plate (2). A new pipe opening (4) is provided on one side of the main body (3). An inspection port (5) is provided on the top of the main body (3). A reserved opening (6) is provided through the upper surface of the bearing plate (2), and the inner wall of the reserved opening (6) is provided with an opening side beam (7), which is in contact with the original pipeline.

2. The structure for adding a tee manhole above a large-diameter pipe according to claim 1, characterized in that: A support plate (8) is fixedly connected to one side of the main body (3) of the saddle well, and an anti-settlement column (9) is fixedly connected to the lower surface of the support plate (8), and a bottom column (10) is slidably connected to the outer surface of the anti-settlement column (9).

3. The structure for adding a tee manhole above a large-diameter pipe according to claim 2, characterized in that: The lower surface of the bottom column (10) is fixedly connected to the upper surface of the bearing plate (2), and an anti-settlement spring (11) is fixedly connected to the inner bottom wall of the bottom column (10). One end of the anti-settlement spring (11) is fixedly connected to the bottom end of the anti-settlement column (9).

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