Anti-settling type inspection well reinforcing base

By using staggered steel reinforcement frames and support plates in the reinforcement base of the inspection well, the position of the support plate can be adjusted, which solves the problems of fixed support structure and loose backfill in the existing technology, and improves the stability and safety of the inspection well.

CN223893440UActive Publication Date: 2026-02-10SHANDONG SURVEY & DESIGN INST OF WATER CONSERVANCY
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Patent Information

Application Number
CN202520496254.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-02-10
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

In existing manhole reinforcement technologies, the support structure is fixed in position, making it impossible to flexibly adjust the load distribution. The backfill material is not tightly bonded to the reinforcement structure, and there is a lack of effective stress dispersion at the connection between the base and the manhole body, which easily leads to concentrated loads.

Method used

A settling-resistant manhole reinforcement base was designed, which uses staggered steel bars and support plates. The support plates are position-adjustable through locking mechanisms and adjusting screws. The combination of locking screws and adjusting screws can adapt to different load-bearing requirements and avoid hollowing during backfilling.

Benefits of technology

It enables flexible adjustment of the support plate position to adapt to different load-bearing requirements, avoids hollowing during backfilling, and enhances the stability and safety of the inspection well.

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Abstract

The utility model discloses an anti-settling type inspection well reinforcing base which comprises an inspection well and a base body, a reinforcing ring is arranged on the top of the base body, and the reinforcing ring is connected with the bottom of the inspection well. A mounting seat is arranged at the bottom of the base, steel bar frames penetrating through the mounting seat are arranged in the mounting seat from top to bottom in a staggered mode, supporting plates are arranged at the two ends of each steel bar frame in a sliding mode, and locking mechanisms are arranged between the supporting plates and the steel bar frames; an adjusting screw is arranged in the supporting plate; according to the utility model, the base can be flexibly adjusted according to requirements.
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Description

Technical Field

[0001] This utility model relates to the field of municipal engineering technology, specifically to a subsidence-resistant manhole reinforcement base. Background Technology

[0002] In municipal engineering, manholes are key structures in underground pipeline systems, and their stability directly affects road safety and pipeline operation. Over long-term use, manholes are susceptible to factors such as foundation settlement and inadequate backfilling, leading to problems such as manhole tilting and surrounding road surface collapse. Existing reinforcement technologies, including some solutions using steel cage reinforcement structures, have the following drawbacks: 1) The support structure is fixed in position, making it impossible to flexibly adjust the load distribution according to needs; 2) The backfill material is not tightly bonded to the reinforcement structure, easily forming voids; 3) The connection between the base and the manhole body lacks an effective stress-dispersing structure, easily generating concentrated loads. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a subsidence-resistant manhole reinforcement base.

[0004] This utility model is achieved through the following technical solution:

[0005] A subsidence-resistant manhole reinforcement base includes a manhole and a base. A reinforcement ring is provided on the top of the base and is connected to the bottom of the manhole. A mounting base is provided at the bottom of the base. A steel reinforcement frame is staggered from top to bottom through the mounting base. Support plates are slidably provided at both ends of the steel reinforcement frame. A locking mechanism is provided between the support plates and the steel reinforcement frame. Adjusting screws are provided in the support plates.

[0006] Preferably, the steel reinforcement frame is composed of parallel steel bars, and the number of steel bars is greater than or equal to two.

[0007] Preferably, the support plate is provided with a first mounting hole that mates with the steel reinforcement frame, the side wall of the first mounting hole is provided with a first threaded hole, and a locking screw is installed in the first threaded hole.

[0008] Preferably, the support plate is provided with a second mounting hole, the second mounting hole is provided with a second threaded hole, and an adjusting screw is installed in the second threaded hole.

[0009] The beneficial effects of this utility model are as follows: the position of the support plate of this utility model can be flexibly adjusted to adapt to different load-bearing requirements; the staggered arrangement of the support plates of this utility model can avoid hollow areas during backfilling. Attached Figure Description

[0010] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0011] Figure 1 This is an isometric view of the present invention.

[0012] Figure 2 This is the front view of the present invention.

[0013] Figure 3 This is an isometric view of the concealed inspection well and base of this utility model.

[0014] Figure 4 This is a view of the mechanism at the support plate of this utility model.

[0015] In the attached diagram: 1. Inspection well; 2. Base; 3. Reinforcing ring; 4. Mounting seat; 5. Support plate; 6. First mounting hole; 7. Locking screw; 8. Adjusting screw; 9. Second mounting hole. Detailed Implementation

[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0017] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0018] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” may be used herein to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] The present invention will now be described in detail with reference to the accompanying drawings:

[0021] Structural components:

[0022] Base 2 and reinforcing ring 3: The main body of base 2 is made of C30 precast concrete, and the top is a ring-shaped reinforcing ring 3, which is connected to the bottom of inspection well 1.

[0023] Mounting base 4 and steel reinforcement frame: Mounting base 4 is embedded in the bottom of base 2, and four layers of steel reinforcement frame are arranged in an alternating manner inside (each layer consists of two Φ16 threaded steel bars arranged in parallel with a spacing of 20cm).

[0024] Support plate 5 and adjustment mechanism:

[0025] Support plate 5: Made of 10mm thick steel plate, with a first mounting hole 6 for sliding fit with the reinforcing bar, and a first threaded hole on the side wall for fixing the position of the reinforcing bar by locking screw 7.

[0026] Adjusting screw 8: Located inside the support plate 5, the distance of the screw 8 extending out of the support plate 5 can be adjusted by rotating the adjusting screw. The protruding end of the adjusting screw will push against the side wall of the mounting base 4, thereby controlling the distance between the support plate 5 and the mounting base 4.

[0027] Implementation steps:

[0028] Base 2 Installation:

[0029] Excavate the foundation pit to the design elevation according to the position of support plate 5, remove the original loose soil layer, replace it with 30cm thick medium-coarse sand and compact it with water.

[0030] Hoist the precast base 2 and calibrate the top surface elevation of the reinforcing ring 3 using a total station (error ≤ ±2mm).

[0031] Adjustment of support plate 5:

[0032] Adjust the installation position of the support plate 5 by adjusting screw 8, slide the support plate 5 until the adjusting screw presses against the mounting seat 4 (adjust the position of the support plate 5 according to the soil test report and load-bearing requirements, etc.), and tighten the locking screw 7 to fix the steel reinforcement frame.

[0033] Backfilling and Acceptance:

[0034] Backfill with high-quality clay in layers (20cm each), and compact with an immersion vibrator to avoid disturbing the support plate 5.

[0035] During acceptance testing, a 3m ruler was used to check the flatness of the base 2 perimeter (gap ≤ 3mm), and a simulated vehicle test was conducted to verify that there was no hollow area.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A type of anti-settlement inspection well reinforcement base, comprising an inspection well (1) and a base (2), characterized in that: The base (2) is provided with a reinforcing ring (3) at the top, and the reinforcing ring (3) is connected to the bottom of the inspection well (1); the base (2) is provided with a mounting seat (4) at the bottom, and steel bars are staggered from top to bottom inside the mounting seat (4) and support plates (5) are slidably provided at both ends of the steel bars, and a locking mechanism is provided between the support plate (5) and the steel bars; the support plate (5) is provided with an adjusting screw (8).

2. The anti-settlement manhole reinforcement base as described in claim 1, characterized in that: The steel reinforcement frame is composed of parallel steel bars, with the number of steel bars being greater than or equal to two.

3. The anti-settlement manhole reinforcement base as described in claim 1, characterized in that: The support plate (5) is provided with a first mounting hole (6) that cooperates with the steel reinforcement frame. The side wall of the first mounting hole (6) is provided with a first threaded hole, and a locking screw (7) is installed in the first threaded hole.

4. The anti-settlement manhole reinforcement base as described in claim 1, characterized in that: The support plate (5) is provided with a second mounting hole (9), and a second threaded hole is provided in the second mounting hole (9). An adjusting screw (8) is installed in the second threaded hole.