A uHPC cable manhole cover

Abstract

The utility model discloses a kind of UHPC cable manhole covers, including the cover plate body made of UHPC, multiple groups of reinforcement cage are pre-buried along length direction in the cover plate body inside, and reinforcement cage includes longitudinal main reinforcement and transverse distribution reinforcement;Anti-skid texture is equipped on the upper surface of cover plate body, and sealing groove is equipped on the side surface of four around, and rubber sealing strip is adaptively installed in sealing groove;Hoisting connecting part is equipped on the side surface of both ends of the short side of cover plate body;Reserved mark area is on the upper surface of cover plate body, multiple groups of reinforcing ribs are arranged along width direction in the cover plate body inside, and drainage groove is set up on the upper surface, the utility model uses UHPC material, compared with traditional concrete, high in strength, good in durability, under the premise of guaranteeing cover plate strength, cover plate thickness can be appropriately thinned, effectively reduce dead weight, after testing, the utility model cover plate body compared with same size ordinary concrete cover plate dead weight lightens 30%-40%, convenient to carry and install, reduce construction difficulty and labor intensity;Meanwhile, the high durability of UHPC makes cover plate long-term use under harsh environment, reduces maintenance replacement frequency, reduces whole life cycle cost.

Description

Technical Field

[0001] This utility model relates to the field of cable well facilities technology, specifically a UHPC cable well cover. Background Technology

[0002] In power engineering and urban underground pipeline construction, cable manhole covers are crucial facilities for ensuring the safe and stable operation of cable trenches (manholes). Traditional cable manhole covers have many drawbacks. For example, when made of ordinary concrete, they are heavy, making handling and installation inconvenient and increasing the labor intensity and difficulty of construction workers; they have a low degree of prefabrication and assembly, resulting in cumbersome construction procedures and long construction periods; and they have poor durability, easily cracking, breaking, and steel corrosion due to long-term exposure to external environmental factors (such as rainwater erosion, temperature changes, vehicle loads, etc.). This not only requires frequent repairs and replacements, increasing maintenance costs, but may also pose safety hazards, threatening the safety of power facilities and personnel. Therefore, it is necessary to design a UHPC cable manhole cover. Utility Model Content

[0003] The purpose of this utility model is to provide a UHPC cable manhole cover to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a UHPC cable well cover, comprising a cover body made of UHPC;

[0005] Multiple sets of steel reinforcement skeletons are pre-embedded at intervals along the length of the cover plate body. The steel reinforcement skeleton includes longitudinal main bars and transverse distribution bars.

[0006] The upper surface of the cover plate body is provided with anti-slip texture, and the four sides of the cover plate body are provided with sealing grooves, and rubber sealing strips are adapted to be installed in the sealing grooves;

[0007] The cover plate body is provided with hoisting connection parts on both sides of the short side;

[0008] A marking area is reserved on the upper surface of the cover plate body;

[0009] The cover plate body has multiple sets of reinforcing ribs spaced apart along the width direction inside, and a drainage groove is opened on the upper surface.

[0010] Preferably, the longitudinal main reinforcement is made of high-strength threaded steel bar, the transverse distribution reinforcement is made of low-carbon steel wire, and the longitudinal main reinforcement and transverse distribution reinforcement are bound or welded to form a grid-like skeleton.

[0011] Preferably, the anti-slip texture consists of trapezoidal raised strips arranged at intervals, with the raised strips having a height of 3-5mm, a width of 5-8mm, and a spacing of 10-15mm between adjacent raised strips.

[0012] Preferably, the hoisting connection part is a pre-embedded lifting ring, which is made of alloy steel. One end of the lifting ring is embedded inside the cover plate body and connected to the steel reinforcement skeleton, while the other end extends out of the side of the cover plate body.

[0013] Preferably, the reinforcing rib is integrally formed with the cover plate body, and the reinforcing rib is made of UHPC material with an inverted T-shaped cross section.

[0014] Preferably, the identification area uses laser engraving to set text labels and information.

[0015] Beneficial effects:

[0016] (1) Compared with ordinary concrete cover plates of the same size, the cover plate body of this utility model is 30%-40% lighter, making it convenient to handle and install, reducing construction difficulty and labor intensity; at the same time, the high durability of UHPC enables the cover plate to be used for a long time in harsh environments, reducing the frequency of maintenance and replacement, and reducing the total life cycle cost.

[0017] (2) In this utility model, the pre-embedded steel reinforcement skeleton combined with UHPC synergistically improves the structural strength and crack resistance of the cover plate, effectively preventing the cover plate from cracking and breaking; the anti-slip texture ensures the safety of personnel and vehicles; the sealing groove and rubber sealing strip work together to achieve a good sealing effect, blocking water, dust and small animals; the hoisting connection part facilitates construction hoisting operation; the reinforcing rib further enhances the structural performance and can cope with complex loads; the drainage groove drains water quickly and protects the internal environment of the cable well.

[0018] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more apparent and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a top view of the cover plate body of this utility model;

[0021] Figure 3 This is a schematic diagram of the steel reinforcement skeleton structure of this utility model;

[0022] Figure 4 This is a schematic diagram showing the distribution of the reinforcing ribs in this utility model;

[0023] In the diagram: 1. Cover plate body; 2. Longitudinal main rib; 3. Transverse distribution rib; 4. Anti-slip texture; 5. Sealing groove; 6. Rubber sealing strip; 7. Reserved marking area; 8. Reinforcing rib; 9. Lifting ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] 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 application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0026] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0031] Please see Figures 1-4 This utility model discloses a UHPC cable well cover, including a cover body 1 made of UHPC. Compared with traditional concrete, this material has the characteristics of high strength and good durability. It allows for a reduction in cover thickness while maintaining cover strength, effectively reducing its weight. Tests show that the cover body 1 is 30%-40% lighter than a conventional concrete cover of the same size, facilitating handling and installation, reducing construction difficulty and labor intensity. Simultaneously, its high durability allows the cover to be used for a long time in harsh environments, reducing maintenance and replacement frequency and lowering the total life cycle cost.

[0032] In this invention, multiple sets of reinforcing steel skeletons are pre-embedded at intervals along the length of the cover plate body 1. The reinforcing steel skeleton includes longitudinal main bars 2 and transverse distribution bars 3. The longitudinal main bars 2 are made of high-strength threaded steel bars, and the transverse distribution bars 3 are made of low-carbon steel wire. The longitudinal main bars 2 and the transverse distribution bars 3 are bound or welded to form a grid-like skeleton. This grid-like reinforcing steel skeleton, combined with UHPC material, can synergistically improve the structural strength and crack resistance of the cover plate, effectively preventing cracking and damage, thereby extending the service life of the cover plate.

[0033] In this invention, the upper surface of the cover plate body 1 is provided with anti-slip texture 4, which consists of trapezoidal raised strips arranged at intervals. The height of the raised strips is 3-5mm, the width is 5-8mm, and the distance between adjacent raised strips is 10-15mm. This design can increase the friction of the cover plate surface, providing good anti-slip effect when people and vehicles pass through, and ensuring traffic safety.

[0034] In this invention, the cover plate body 1 has sealing grooves 5 on all four sides, and rubber sealing strips 6 are fitted into the sealing grooves 5. The cooperation between the sealing grooves 5 and the rubber sealing strips 6 can achieve a good sealing effect, effectively preventing water, dust and small animals from entering the cable well and protecting the facilities inside the cable well.

[0035] In this invention, the cover plate body 1 has lifting connection parts on both sides of its short side. These lifting connection parts are pre-embedded lifting rings 9, which are made of alloy steel. One end of the lifting ring 9 is embedded inside the cover plate body 1 and connected to the reinforcing steel frame, while the other end extends out of the side of the cover plate body 1. During construction, the lifting rings 9 facilitate lifting operations, improving construction efficiency.

[0036] In this utility model, a marking area 7 is reserved on the upper surface of the cover plate body 1. The marking area 7 is set with text markings and information by laser engraving, such as the purpose of the cable well, the unit to which it belongs, and maintenance information, which facilitates later management and maintenance.

[0037] Furthermore, in this invention, multiple sets of reinforcing ribs 8 are spaced apart along the width direction inside the cover body 1. The reinforcing ribs 8 are integrally formed with the cover body 1 and are made of UHPC material with an inverted T-shaped cross-section. The reinforcing ribs 8 further enhance the structural performance of the cover, enabling it to better withstand complex loads, such as those from vehicles. Simultaneously, drainage grooves are provided on the upper surface of the cover body 1 to facilitate the rapid drainage of rainwater, preventing water accumulation from adversely affecting the cover and the internal environment of the cable well.

[0038] In summary, the cover plate of this utility model is 30%-40% lighter than ordinary concrete cover plates of the same size, making it easier to handle and install, reducing construction difficulty and labor intensity; at the same time, the high durability of UHPC allows the cover plate to be used for a long time in harsh environments, reducing the frequency of maintenance and replacement, and lowering the total life cycle cost.

[0039] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A UHPC cable well lid plate, characterized in that: The utility model relates to a cover plate body (1) made of UHPC. The cover plate body (1) is internally embedded with multiple groups of steel reinforcement frameworks along the length direction, which include longitudinal main reinforcement (2) and transverse distribution reinforcement (3). The upper surface of the cover plate body (1) is provided with anti-skid texture (4), and the four peripheral sides of the cover plate body (1) are provided with sealing grooves (5) in which rubber sealing strips (6) are fitted and installed. The short edge ends of the cover plate body (1) are provided with lifting connection parts. The upper surface of the cover plate body (1) is provided with a reserved marking area (7). Multiple groups of reinforcing ribs (8) are arranged along the width direction inside the cover plate body (1), and a drainage groove is formed on the upper surface.

2. A UHPC cable cover plate according to claim 1, characterized in that: The longitudinal main reinforcement (2) is made of high-strength threaded steel, and the transverse distribution reinforcement (3) is made of low-carbon steel wire.

3. The UHPC cable well cover plate according to claim 1, characterized in that: The anti-skid texture (4) is a trapezoidal convex strip arranged at intervals, with a height of 3-5 mm, a width of 5-8 mm, and a distance of 10-15 mm between adjacent convex strips.

4. The UHPC cable well cover plate according to claim 1, characterized in that: The lifting connection part is a pre-embedded lifting ring (9) made of alloy steel, with one end embedded in the interior of the cover plate body (1) and connected with the steel reinforcement framework, and the other end extending out of the side of the cover plate body (1).

5. The UHPC cable well cover plate according to claim 1, characterized in that: The reinforcing rib (8) is integrally formed with the cover plate body (1), and is made of UHPC material with an inverted T-shaped cross section.

6. The UHPC cable well cover plate according to claim 1, characterized in that: The marking area (7) is provided with text marks and information by laser engraving.

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