Anti-settling structure for road around inspection well

By setting up a ring-shaped steel mesh around the manhole and combining it with concrete pouring, the connection stability between the manhole and the road was enhanced, the problem of settlement around the manhole was solved, and a good anti-settlement effect was achieved.

CN224106213UActive Publication Date: 2026-04-10GUIZHOU TONGYUAN HIGHWAY SURVEY & DESIGN CONSULTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIZHOU TONGYUAN HIGHWAY SURVEY & DESIGN CONSULTING CO LTD
Filing Date
2025-02-27
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The roads surrounding existing manholes are prone to subsidence under vehicle traffic, causing the manhole covers to bulge or sink, damaging vehicles and potentially causing traffic accidents. Existing support plates are small in size and have a limited force transmission range, resulting in poor anti-subsidence effects.

Method used

A first and second ring-shaped steel mesh are installed around the inspection well and connected by a connecting structure. An external support structure is added to enhance stability. Combined with concrete pouring, an integral structure is formed to increase the force transmission range.

Benefits of technology

It improves the strength and stability of the roads surrounding the manhole, prevents settlement, strengthens the connection between the manhole and the surrounding roads, and avoids traffic safety hazards caused by manhole cover settlement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-settling structure for a road around an inspection well, which comprises the inspection well arranged in a road structure, the top surface of the inspection well is flush with a pavement structure layer of the road structure, a seam groove is arranged on a roadbed of the road structure around the inspection well, and the anti-settling structure also comprises a first annular reinforcing mesh fixedly arranged outside the inspection well, the outer side of the first annular reinforcing mesh is connected with a second annular reinforcing mesh through a connecting structure, a supporting structure is arranged below the outer side of the second annular reinforcing mesh, the first annular reinforcing mesh and the second annular reinforcing mesh are located on the lower portion in the joint groove, concrete is poured on the lower portion in the joint groove, and a pavement structure layer is arranged on the concrete in the joint groove. According to the structure, by arranging the first annular reinforcing mesh and the second annular reinforcing mesh, the strength and stability of the road structure around the inspection well are improved, the inspection well and the road structure around the inspection well support each other, and the anti-sedimentation effect is good.
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Description

Technical Field

[0001] This utility model relates to the field of inspection well technology, and in particular to an anti-settlement structure for roads surrounding inspection wells. Background Technology

[0002] Inspection wells are installed to facilitate the maintenance and installation of urban underground infrastructure such as power supply, water supply, drainage, sewage, communications, cable TV, gas pipes, and street light lines. They are generally located at pipe junctions, bends, changes in pipe diameter or slope, and at regular intervals along straight pipe sections to facilitate periodic inspections of the ancillary structures. A typical inspection well consists of a connected chamber, a shaft, and a cover. Under the long-term pressure of vehicles, inspection wells and the surrounding road structure can experience uneven settlement, causing the cover to bulge or sink. This can damage vehicles and, in severe cases, even lead to traffic accidents. To address these technical problems, existing technology connects a ring-shaped support plate to the outer wall of the shaft to enhance the connection between the inspection well and the surrounding road structure. However, for ease of construction, the support plate is relatively small, with a limited force transmission range, resulting in limited improvement in preventing inspection well settlement. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a road anti-settlement structure around manholes to solve the technical problem that the existing manhole anti-settlement structures have poor anti-settlement effects.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A road subsidence prevention structure around a manhole includes a manhole with its top surface flush with the pavement structure layer of the road structure. A joint groove is provided on the roadbed surrounding the manhole. The structure also includes a first annular steel mesh fixed outside the manhole. A second annular steel mesh is connected to the outer side of the first annular steel mesh via a connecting structure. A supporting structure is provided below the outer side of the second annular steel mesh. The first and second annular steel meshes are located in the lower part of the joint groove. Concrete is poured into the lower part of the joint groove, and the pavement structure layer is placed on top of the concrete in the joint groove.

[0006] Furthermore, the inspection well includes a coaxially connected well chamber, a well cylinder on the well chamber, and a well cover on the inner side of the top of the well cylinder. The outer diameter of the well cylinder is smaller than the outer diameter of the well chamber. The well chamber is provided with an inlet and an outlet. The first annular steel mesh is set outside the well cylinder.

[0007] Further, the connecting structure comprises a first annular connecting plate and a second annular connecting plate, the first annular connecting plate and the second annular connecting plate are located below and above the opposite sides of the first annular reinforcing mesh and the second annular reinforcing mesh respectively, the first annular connecting plate and the second annular connecting plate are connected through bolts in the circumferences thereof, and the first annular connecting plate is supported through a plurality of support columns arranged on the top surface of the shaft room.

[0008] Further, the plurality of support columns are uniformly spaced along the circumference of the shaft room, and lower ends of the plurality of support columns are embedded in the side wall of the shaft room.

[0009] Still further, the support structure is an annular reinforcing cage.

[0010] The beneficial effects of the utility model are:

[0011] The first annular reinforcing mesh has a small size, facilitating the construction of the inspection well, the first annular reinforcing mesh connects the second annular reinforcing mesh to increase the size of the reinforcing mesh around the inspection well, the force transmission range is wide, the first annular reinforcing mesh and the second annular reinforcing mesh are arranged to improve the strength and stability of the road structure around the inspection well, the inspection well and the road structure around the inspection well have a mutual supporting effect, and the anti-settling effect is good.

[0012] The connecting structure with the special structure can not only connect the first annular reinforcing mesh and the second annular reinforcing mesh, but also support the opposite sides of the first annular reinforcing mesh and the second annular reinforcing mesh, further improving the strength and stability of the road structure around the inspection well.

[0013] Other advantages, objects and features of the utility model will be described in the subsequent specification to some extent, and to some extent, will be apparent to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. The objects and other advantages of the utility model can be realized and obtained through the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to make the objects, technical schemes and advantages of the utility model more clear, the utility model will be further described in detail below in combination with the drawings, wherein:

[0015] Figure 1 It is a front view of the utility model.

[0016] Figure 2 It is Figure 1 It is a layout plan view of the shaft, the first annular reinforcing mesh and the second annular reinforcing mesh.

[0017] In the diagram: 1. Road surface structure layer; 2. Subgrade; 3. Base course; 4. Manhole; 5. Manhole cover; 6. Inlet; 7. Outlet; 8. Joint groove; 9. First ring steel mesh; 10. Second ring steel mesh; 11. Support structure; 12. First ring connecting plate; 13. Second ring connecting plate; 14. Bolt; 15. Support column; 16. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0019] Example 1

[0020] like Figure 1 As shown, a road subsidence prevention structure around a manhole includes a manhole flush with the pavement structure layer 1 of the road structure. The road structure, from bottom to top, includes a roadbed 2, a base course 3, and a pavement structure layer 1. The manhole includes a coaxially connected manhole chamber 4, a manhole cylinder 5 on the manhole chamber 4, and a manhole cover 6 on the inner side of the top of the manhole cylinder 5. The outer diameter of the manhole cylinder 5 is smaller than the outer diameter of the manhole chamber 4. The manhole chamber 4 is provided with an inlet 7 and an outlet 8. The manhole chamber 4 and the manhole cylinder 5 are reinforced concrete structures. The roadbed 2 of the road structure surrounding the manhole is provided with a joint groove 9. It also includes a first annular structure outside the manhole cylinder 5. The inner side of the first annular steel mesh 10 is embedded in the well shaft 5 and connected to the steel bars in the well shaft 5. The outer side of the first annular steel mesh 10 is connected to the second annular steel mesh 11 through a connecting structure. A support structure 12 is provided below the outer side of the second annular steel mesh 10. The support structure 12 is an annular steel cage. The purpose of setting the support structure 12 is to keep the first annular steel mesh 10 and the second annular steel mesh 11 horizontal. The first annular steel mesh 10 and the second annular steel mesh 11 are located in the lower part of the joint groove 9. Concrete is poured in the lower part of the joint groove 9. The road structure layer 1 is on top of the concrete in the joint groove 9.

[0021] Example 2

[0022] The difference from the first embodiment is that the connecting structure comprises a first annular connecting plate 13 and a second annular connecting plate 14, the first annular connecting plate 13 and the second annular connecting plate 14 are respectively arranged below and above the opposite sides of the first annular reinforcing mesh 10 and the second annular reinforcing mesh 11 to clamp the opposite sides of the first annular reinforcing mesh 10 and the second annular reinforcing mesh 11, a plurality of connecting holes are vertically arranged on the outer side and the inner side of the first annular connecting plate 13 and the second annular connecting plate 14 at uniform intervals along the circumferential direction, the connecting holes on the first annular connecting plate 13 and the connecting holes on the second annular connecting plate 14 correspond to each other, the first annular connecting plate 13 and the second annular connecting plate 14 are connected by a plurality of bolts 15 respectively penetrating through the opposite connecting holes, a plurality of support columns 16 are arranged at uniform intervals along the circumferential direction on the lower side of the first annular connecting plate 13, and the lower ends of the support columns 16 are embedded in the side wall of the shaft chamber 4 and connected with the reinforcing bars in the side wall.

[0023] The anti-settling structure is constructed as follows: first, the inspection well is constructed on the road structure according to the conventional process, and a joint groove 9 is left on the roadbed outside the inspection well; then, the annular reinforcing cage is placed outside the joint groove 9; then, the second annular reinforcing mesh 11 is placed so that the inner side of the second annular reinforcing mesh 11 is located on the first annular connecting plate 13 and the outer side of the second annular reinforcing mesh 11 is located on the annular reinforcing cage; then, the second annular connecting plate 14 opposite to the first annular connecting plate 13 is placed above the opposite sides of the first annular reinforcing mesh 10 and the second annular reinforcing mesh 11; then, the first annular connecting plate 13 and the second annular connecting plate 14 are connected by a plurality of bolts 15 penetrating through the opposite connecting holes, so that the first annular connecting plate 13 and the second annular connecting plate 14 connect the opposite sides of the first annular reinforcing mesh 10 and the second annular reinforcing mesh 11; then, the annular reinforcing cage and the plurality of support columns 16 support the first annular reinforcing mesh 10 and the second annular reinforcing mesh 11 to keep them horizontal; then, the concrete is poured into the lower part of the joint groove 9; and finally, the road surface structure layer 1 is constructed according to the conventional process.

[0024] The anti-settling structure has the following advantages: the first annular reinforcing mesh has a small size, which facilitates the construction of the inspection well; the first annular reinforcing mesh and the second annular reinforcing mesh increase the size of the reinforcing mesh around the inspection well, and the force transmission range is wide; the first annular reinforcing mesh and the second annular reinforcing mesh improve the strength and stability of the road structure around the inspection well, so that the inspection well and the road structure around it have a mutual supporting effect, and the anti-settling effect is good.

[0025] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A manhole peripheral road sedimentation preventing structure comprising a manhole which is flush with a pavement structure layer (1) of a road structure at a top surface provided in the road structure, characterized in that: The subterranean inspection well peripheral road structure roadbed (2) is provided with a joint groove (9), and it further comprises a first annular reinforcing mesh (10) fixedly arranged outside the subterranean inspection well, an outer side of the first annular reinforcing mesh (10) is connected with a second annular reinforcing mesh (11) through a connecting structure, an outer side of the second annular reinforcing mesh (11) is provided with a supporting structure (12) below, the first annular reinforcing mesh (10) and the second annular reinforcing mesh (11) are located in the lower part of the joint groove (9), the joint groove (9) is poured with concrete in the lower part, and the joint groove (9) is provided with a road surface structure layer (1) on the concrete.

2. The inspection well perimeter road sedimentation preventing structure according to claim 1, characterized by: The subterranean inspection well comprises a well chamber (4), a well shaft (5) on the well chamber (4) and a well lid (6) on the inner side of the top of the well shaft (5), the outer diameter of the well shaft (5) is smaller than the outer diameter of the well chamber (4), the well chamber (4) is provided with a water inlet (7) and a water outlet (8), and the first annular reinforcing mesh (10) is arranged outside the well shaft (5).

3. The inspection well perimeter road sedimentation preventing structure according to claim 2, characterized by: The connecting structure comprises a first annular connecting plate (13) and a second annular connecting plate (14), the first annular connecting plate (13) and the second annular connecting plate (14) are respectively located below and above the opposite sides of the first annular reinforcing mesh (10) and the second annular reinforcing mesh (11), the first annular connecting plate (13) and the second annular connecting plate (14) are connected through the circumferential bolts (15), and the first annular connecting plate (13) is supported through the plurality of supporting columns (16) arranged on the top surface of the well chamber (4).

4. The inspection well perimeter road sedimentation preventing structure according to claim 3, characterized by: The plurality of supporting columns (16) are uniformly and spacedly arranged along the circumference of the well chamber (4), and the lower ends of the plurality of supporting columns (16) are pre-buried in the side wall of the well chamber (4).

5. The inspection well perimeter road sedimentation-preventing structure according to any one of claims 1 to 4, characterized by: The supporting structure (12) is an annular reinforcing cage.