UHPC (Ultra High Performance Concrete) cable-penetrating hollow curb

Abstract

The utility model discloses a UHPC (Ultra High Performance Concrete) cable-penetrating hollow curb, and relates to the technical field of municipal engineering. Comprising a plurality of curbs arranged between a sidewalk and a road, the sidewalk is provided with a plurality of hand hole wells, each curb comprises a supporting part, the supporting part is sleeved with a U-shaped block, the U-shaped block is made of a UHPC material, the supporting part comprises a plurality of supports, a plurality of cable holes used for placing cables are formed in the supports, and the cable holes are communicated with the hand hole wells. A wire groove for threading is formed in the bottom of the side, facing the hand hole well, of the U-shaped block, and the wire groove communicates with the gap between the two adjacent supports. The U-shaped block is made of UHPC (Ultra High Performance Concrete) materials, so that the service life of the curb is effectively prolonged; the cable can be effectively protected through the support, so that the utilization efficiency of underground space is effectively improved, and the influence of tree roots on the cable is effectively avoided; and the U-shaped block is mounted on the support, so that the cable can be effectively prevented from being soaked, and the service life of the cable is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to municipal engineering technical field especially, is a kind of UHPC high-performance concrete cable-penetrating hollow kerb. BACKGROUND

[0002] Kerb is the marker between the edge of pavement and the structure such as sidewalk and green belt, which has the function of separating different functional spaces of road and increasing the stability of pavement. The kerb commonly used at present is divided into traditional cement concrete type and stone type according to material. The traditional concrete kerb has poor durability, and many diseases will appear quickly under the action of environmental factors such as snow-melting agent. The stone kerb has good mechanical properties and superior corrosion resistance, but has great construction difficulty, high cost of new construction and maintenance. At the same time, there are many underground pipelines of urban road sidewalk, and there is a problem of cramped road space. Usually, street lamp cables and trees are arranged at a position about 1.2 meters away from the kerb, and with the growth of trees, street lamp cable pipelines are easily pierced by tree roots or deformed, causing safety accidents. Therefore, the traditional concrete and stone kerb cannot meet the requirements of green, low-carbon and sustainable development of China's transportation industry at present stage.

[0003] At the same time, the traditional concrete kerb has poor durability, and needs frequent replacement and maintenance. Especially under the action of environmental factors such as snow-melting agent, surface erosion, aggregate exposure and other diseases will appear quickly, which seriously affects the landscape and use function of road. The stone kerb has good mechanical properties and superior corrosion resistance, but has great construction difficulty, high cost of new construction and maintenance. In addition, there are many underground pipelines of urban road sidewalk, and there is a problem of cramped road space, especially the problem of street lamp cable pipelines affected by tree roots.

[0004] Therefore, it is urgent to provide a UHPC high-performance concrete cable-penetrating hollow kerb, which can not only improve the service life of kerb, but also effectively protect the cable through the kerb, and effectively improve the utilization efficiency of underground space. CONTENT OF UTILITY MODEL

[0005] The utility model aims to provide a UHPC high-performance concrete cable-penetrating hollow kerb to solve the problems of the prior art.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a UHPC high-performance concrete hollow curbstone for cable routing, comprising several curbstones disposed between a sidewalk and a road, several manholes being provided on the sidewalk, each curbstone including a support portion, a U-shaped block fitted on the support portion, the U-shaped block being made of UHPC material, the support portion including several supports, each support having several wire holes for placing cables, and a wire groove for threading cables being provided on the bottom side of the U-shaped block facing the manholes, the wire groove being connected to the gap between two adjacent supports.

[0007] Preferably, the top of the U-shaped block facing the road has a rounded corner.

[0008] Preferably, the wire groove is connected to the handhole well through a wire hole.

[0009] Preferably, the threading hole is formed on the inner wall of the handhole.

[0010] Preferably, the bottom of both sides of the U-shaped block is provided with a plurality of slots, and the slots are detachably connected to the card blocks, which are fixedly connected to the support.

[0011] Preferably, the card block and the support are integrally formed.

[0012] Preferably, the groove is formed between two adjacent slots on the same side of the U-shaped block.

[0013] Preferably, the top surface of the support has an outer arc, and the top of the U-shaped block has an inner arc, with the outer arc and the inner arc being adapted to each other.

[0014] Preferably, the bottom of the support has a square hole.

[0015] The present invention discloses the following technical effects:

[0016] The U-shaped block of this utility model is made of UHPC material, which makes the U-shaped block durable and effectively improves the service life of the curbstone, and conforms to the concept of green and low carbon. By installing the cable in the cable hole, the support can effectively protect the cable, which not only effectively improves the utilization efficiency of underground space, but also effectively avoids the impact of tree roots on the cable. Furthermore, by installing the U-shaped block on the support, when the cable is installed on the support, it can also effectively prevent rainwater from seeping into the support through the gaps and soaking the cable, thus effectively improving the service life of the cable. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the U-shaped block structure of the present invention;

[0020] Figure 3 Schematic diagram of the support structure of the present invention;

[0021] Figure 4 Schematic cross-sectional structure diagram when the present invention is installed between the crosswalk and the handhole;

[0022] Among them, 1. U-shaped block; 2. Support; 3. Road; 4. Handhole; 5. Street lamp cable conduit; 6. Threading hole; 11. Rounded corner; 12. Wire groove; 13. Card slot; 21. Card block; 22. Wire hole; 23. Square hole. Specific embodiments

[0023] The implementable solutions discovered in the art are as follows:

[0024] Patent publication number CN216551427U discloses a municipal pipeline curbstone, including a curbstone outer body and a curbstone inner body. There is a cavity inside the curbstone outer body, and the curbstone inner body is installed in the cavity of the curbstone outer body. The curbstone inner body is provided with a through wire groove. The cavity of the curbstone outer body is a convex-shaped structure. The curbstone inner body is a concave-shaped structure. The convex part of the cavity and the wire groove of the curbstone inner body form an overall threading hole. Hole grooves are provided on the front and back surfaces of the curbstone outer body. A tool rod can be inserted into the hole grooves, and the curbstone outer body can be installed on the curbstone inner body through the tool rod, or the curbstone outer body can be removed from the curbstone inner body through the tool rod. The hole grooves on the front and back surfaces of the curbstone outer body are through hole grooves. A protective tube is provided inside the hole grooves to protect the curbstone outer body from being damaged during installation or disassembly. The protective tube is a PVC tube or a rubber hose. The threading hole is a prismatic hole or a cylindrical hole.

[0025] The beneficial effects of this patent are as follows: The structure is simple, the cost is low, it breaks through the traditional curbstone structure, is used for the layout of municipal pipelines, is convenient for installation and disassembly, the pipelines are not easily damaged, the pipeline layout does not require trenching and burying, and the pipeline layout problem can be solved through the effective installation of the curbstone, which is convenient and fast, beneficial to municipal construction, and can be widely applied.

[0026] Patent publication number CN220619668U discloses a reflective prefabricated curbstone for easy wiring, comprising a curbstone body, several low-voltage conduits, multiple high-voltage conduits, and a reflective coating. The curbstone body has two opposing connecting surfaces, as well as opposing facing and back surfaces. When multiple reflective prefabricated curbstones are laid, the facing surface of the curbstone body faces the road, and the connecting surfaces of adjacent curbstone bodies are arranged opposite each other. Several low-voltage conduits are installed inside the curbstone body, with both ends of the conduits passing through the two connecting surfaces of the curbstone body, respectively. Multiple high-voltage conduits are also installed inside the curbstone body, with both ends of the high-voltage conduits passing through the two connecting surfaces of the curbstone body, respectively. The reflective coating is applied to the facing surface of the curbstone body. The reflective prefabricated curbstone also includes a mortar leveling layer, which is located at the bottom of the curbstone body. The curbstone body has a wiring inspection hole on the back side of the road surface. Several low-voltage and multiple high-voltage conduits pass through this hole. The low-voltage conduits have low-voltage inspection ports connected to the inspection hole, and the high-voltage conduits have high-voltage inspection ports connected to the inspection hole. The reflective precast curbstone also includes a protective component, which is located inside the wiring inspection hole and can completely seal it. The protective component includes an inner threaded ring, a limiting ring, a sealing disc, and a rotating plate. The inner threaded ring is located inside the inspection hole, the limiting ring is fixed to the inner wall of the inner threaded ring and located near the facing end of the inner wall, the sealing disc is screwed to the inner threaded ring and engaged with the limiting ring, and the rotating plate is fixed to the side of the sealing disc facing away from the facing road surface. The curbstone body has a drainage outlet. The upper part of the curbstone body has a chamfer. The main body of the curbstone is made of precast concrete, and both low-voltage and high-voltage conduits are cast inside the concrete.

[0027] This patented technology involves installing several low-voltage conduits and multiple high-voltage conduits within the main body of the curbstone. Both ends of these conduits extend from the two connecting surfaces of the curbstone body. When multiple reflective prefabricated curbstones are laid, the connecting surfaces of adjacent curbstone bodies are positioned opposite each other, allowing the conduits within adjacent reflective prefabricated curbstones to connect. This enables the reflective prefabricated curbstones to fulfill the functions of ordinary curbstones while also meeting the pre-buried pipe construction requirements of intelligent transportation and lighting projects. Simultaneously, it achieves separation of high and low voltage, preventing signal interference and facilitating subsequent wiring and maintenance. It saves construction materials, labor, and construction time, solving the problem of traditional curbstones having a limited function and failing to facilitate roadside pipe laying for intelligent transportation and lighting projects.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figures 1-4 This utility model discloses a UHPC high-performance concrete hollow curbstone for cable laying, including several curbstones set between the sidewalk and the road 3. Several manholes 4 are set on the sidewalk. The curbstone includes a support part, and a U-shaped block 1 is fitted on the support part. The U-shaped block 1 is made of UHPC material. The support part includes several supports 2. Several wire holes 22 for placing cables are opened in the supports 2. A wire groove 12 for threading the wire is opened on the bottom side of the U-shaped block 1 facing the manhole 4. The wire groove 12 is connected to the gap between two adjacent supports 2.

[0031] Handhole 4 can be installed not only on sidewalks, but also in green belts or medians.

[0032] Curbstones are marker stones placed between roads and sidewalks; the functions of curbstones are as follows:

[0033] Separation and protection: Curbs can separate the road surface from other areas such as sidewalks and green belts, restricting vehicles to travel only in the lane, thereby separating pedestrians from vehicles, protecting the road edge from vehicle damage and erosion, and also guiding the line of sight, improving the safety and aesthetics of the road.

[0034] Drainage function: Curbs can serve as part of a drainage system, helping to remove rainwater from the road surface. In some designs, drainage holes or channels are provided on the bottom or sides of the curb, allowing rainwater to flow smoothly into storm drains or drainage pipes, preventing water accumulation on the road surface.

[0035] Slope stabilization: In some highways, roads and other places where slopes need to be built, curb stones can be used to stabilize road slopes, prevent the collapse and loss of earthwork, and at the same time provide a certain visual effect and beautify the road environment.

[0036] Manholes (4) are small shafts used in building or municipal engineering projects to facilitate cable laying. They are typically constructed of cement bricks, though resin-concrete manholes are also available, making them relatively lightweight. They consist of a manhole body and a cover. The manhole body is generally square or round, and the cover can be opened for easy access. Manholes (4) not only facilitate cable laying, making underground cable arrangements more organized and safer, but also provide convenient working pits for laying outdoor pipelines such as water, electricity, heating, and ventilation systems, as well as for the installation and maintenance of valves and other equipment.

[0037] UHPC high-performance concrete, also known as ultra-high performance concrete, is a special engineering material with ultra-high strength, high toughness, and high durability.

[0038] Performance characteristics of UHPC high-performance concrete:

[0039] Mechanical properties: The compressive strength of UHPC can typically reach over 150 MPa, far exceeding that of ordinary concrete. Its tensile strength is also significantly improved. By adding steel fibers or synthetic fibers, its tensile strength and toughness can be further enhanced, reducing the risk of brittle fracture.

[0040] Durability: It has a dense microstructure and its impermeability, freeze-thaw resistance and chemical erosion resistance are all superior to ordinary concrete. It can maintain stable performance in harsh environments for a long time and extend the service life of the structure.

[0041] Workability: It has good fluidity, is easy to cast and mold, hardens quickly, has high self-compacting properties, and can achieve high density without vibration, thus improving construction efficiency.

[0042] This utility model effectively protects the cable by installing it inside the cable hole 22, thus avoiding the impact of tree roots on the cable and improving the utilization efficiency of underground space. Furthermore, by installing the U-shaped block 1 on the support 2, it effectively prevents rainwater from entering the cable through the gaps and soaking it, thereby improving the cable's service life. Additionally, by using UHPC high-performance concrete material for the U-shaped block 1, the service life of the curbstone is effectively improved.

[0043] The design was further optimized by adding a rounded corner 11 to the top of the side of the U-shaped block 1 facing the road 3. The rounded corner 11 effectively improves both the safety of passage and the aesthetics of the appearance.

[0044] The design was further optimized so that the cable tray 12 is connected to the manhole 4 through the cable hole 6. This allows the connecting wire to the street light to pass through the gap between the cable hole 6, the cable tray 12, and the adjacent support 2 in sequence to connect with the cable.

[0045] The plan was further optimized, and the threading hole 6 was opened on the inner wall of the handhole well 4.

[0046] The end of the street light conduit 5 furthest from the street light extends into the manhole 4, allowing the street light cable to be effectively connected to the connecting wire within the manhole 4.

[0047] To further optimize the design, several slots 13 are provided on the bottom of both sides of the U-shaped block 1. The slots 13 are detachably connected to the card blocks 21, and the card blocks 21 are fixedly connected to the support 2.

[0048] The U-shaped block 1 is installed into the slot 13 by the card block 21, so that the U-shaped block 1 can effectively cover the support 2.

[0049] The design was further optimized, with the locking block 21 and the support 2 integrally molded. This effectively improved the load-bearing capacity of the locking block 21 and the support 2.

[0050] In a further optimized design, the cable tray 12 is positioned between two adjacent slots 13 on the same side of the U-shaped block 1. This allows the connecting wire to be effectively connected to the cable.

[0051] The design was further optimized by creating an outer arc on the top surface of support 2 and an inner arc on the top of the U-shaped block 1, with the outer and inner arcs fitting together. This effectively increases the contact area, allowing the U-shaped block 1 to be stably installed on support 2.

[0052] To further optimize the design, a square hole 23 is provided at the bottom of the support 2. The square hole 23 allows for effective drainage.

[0053] To prevent water from flowing directly onto the cable at the joint between two adjacent U-shaped blocks 1, during actual construction, the length of the support 2 between two adjacent U-shaped blocks 1 is equal to the sum of the lengths of the two slots 13 on opposite sides of the two adjacent U-shaped blocks 1. This ensures that the joint between two adjacent U-shaped blocks 1 is on the same support 2, effectively preventing water from flowing directly onto the cable and extending the cable's service life.

[0054] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0055] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A UHPC high-performance concrete hollow curbstone for cable penetration, characterized in that: The system includes several curb stones set between the sidewalk and the road (3), several manholes (4) are provided on the sidewalk, the curb stones include a support part, a U-shaped block (1) is fitted on the support part, the U-shaped block (1) is made of UHPC material, the support part includes several supports (2), several wire holes (22) for placing cables are opened in the supports (2), and a wire groove (12) for threading wire is opened on the bottom side of the U-shaped block (1) facing the manhole (4), the wire groove (12) is connected to the gap between two adjacent supports (2).

2. The UHPC high-performance concrete hollow curbstone for cable penetration according to claim 1, characterized in that: The top of the U-shaped block (1) facing the road (3) has a rounded corner (11).

3. The UHPC high-performance concrete hollow curbstone for cable penetration according to claim 1, characterized in that: The cable groove (12) is connected to the handhole well (4) through the cable hole (6).

4. The UHPC high-performance concrete hollow curbstone for cable penetration according to claim 3, characterized in that: The threading hole (6) is opened on the inner wall of the handhole (4).

5. The UHPC high-performance concrete hollow curbstone for cable penetration according to claim 1, characterized in that: The bottom of the U-shaped block (1) has several slots (13) on both sides. Each slot (13) is detachably connected to a block (21), and the block (21) is fixedly connected to the support (2).

6. The UHPC high-performance concrete hollow curbstone for cable penetration according to claim 5, characterized in that: The card block (21) and the support (2) are integrally formed.

7. The UHPC high-performance concrete hollow curbstone for cable penetration according to claim 5, characterized in that: The groove (12) is formed between two adjacent slots (13) on the same side of the U-shaped block (1).

8. The UHPC high-performance concrete hollow curbstone for cable penetration according to claim 1, characterized in that: The top surface of the support (2) is provided with an outer arc, and the top of the U-shaped block (1) is provided with an inner arc, and the outer arc is adapted to the inner arc.

9. The UHPC high-performance concrete hollow curbstone for cable penetration according to claim 1, characterized in that: The bottom of the support (2) is provided with a square hole (23).

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