Paving well lid structure for vehicle square

Abstract

The utility model discloses a paving well lid structure for a vehicle square, which comprises a well lid and a paving cover plate arranged above the well lid, a filling layer is clamped between the well lid and the paving cover plate, the filling layer comprises a sandy soil layer and a non-woven fabric layer, the non-woven fabric layer is arranged above the well lid, one end of the sandy soil layer is in contact with and abuts against the paving cover plate, and the other end of the sandy soil layer abuts against the paving cover plate. The other end of the sandy soil layer abuts against the non-woven fabric layer in a contact mode, the pavement cover plate covers the well ring, an embedded part is fixedly welded to one end of the well ring, the embedded part is fixedly inserted into the concrete base layer, and one end of the embedded part is fixedly connected with a stirrup; according to the utility model, the filling layer is clamped between the well cover and the pavement cover plate, so that effective load bearing is provided for the pavement cover plate, and the pavement cover plate is prevented from being deformed and fractured due to long-term pressure; the combined structure of the embedded parts and the stirrups serves as a rigid bearing base of the paving cover plate, the vehicle load is evenly transmitted to the concrete base layer and the surrounding roadbed, and therefore the bearing capacity of the paving cover plate is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, specifically to a paved manhole cover structure for vehicular plazas. Background Technology

[0002] Inspection wells are installed to facilitate the installation and maintenance of underground infrastructure such as power supply, water supply, drainage, or street lighting lines in cities. Paved manhole covers are a type of inspection well cover, which are decorative in nature. Traditional paved manhole covers are made by adding a decorative layer for laying decorative building materials on top of ordinary manhole covers, thus forming a cover that has both the covering function of a general inspection well cover and a decorative function.

[0003] However, the existing combination structure of paved manhole covers and ordinary manhole covers still has some defects, and some practical functions need to be improved. For example, most existing paved manhole covers are directly placed on top of ordinary manhole covers with a cavity between them. In areas such as vehicular plazas where vehicles frequently drive over them, the cavity structure may lead to uneven load distribution. The upper paved manhole cover lacks effective support and is prone to deformation and breakage under long-term pressure. In addition, existing paved manhole covers only use embedded parts as their rigid support base during construction, causing the embedded parts to bear the vehicle load alone. This causes stress to concentrate around the anchor point, leading to cracking of the concrete base. At the same time, the paved manhole cover may loosen under the impact of vehicles, causing it to shift or lift up, or even detach from the manhole base, creating a safety hazard. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a paved manhole cover structure for vehicular plazas. By setting a filling layer between the manhole cover and the paved cover plate, the problem of deformation and breakage of the paved manhole cover under long-term pressure in vehicular plazas can be solved. The combination structure of embedded parts and stirrups can solve the problems of concrete base cracking and paved manhole cover detaching from the manhole ring due to vehicle impact caused by the use of only embedded parts during the construction of existing paved manhole covers.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A paved manhole cover structure for a vehicular plaza includes a manhole cover and a paved cover plate disposed on top of the manhole cover. A filling layer is sandwiched between the manhole cover and the paved cover plate. The filling layer includes a sand layer and a non-woven fabric layer. The non-woven fabric layer is placed on top of the manhole cover. One end of the sand layer contacts and abuts against the paved cover plate, and the other end of the sand layer contacts and abuts against the non-woven fabric layer. The paved cover plate is placed on top of the manhole ring. One end of the manhole ring is fixedly welded with an embedded part. The embedded part is fixedly inserted into the concrete base layer and has a stirrup fixedly connected to one end thereto.

[0007] Furthermore, the paving cover plate includes a paving surface layer, a cement mortar layer, a bottom frame, and a side frame. The paving surface layer is disposed above the cement mortar layer, and the cement mortar layer is sandwiched between the paving surface layer and the bottom frame. The paving surface layer is bonded and fixed to the bottom frame through the cement mortar layer to form an integral whole. The side frame is disposed on one side of the cement mortar layer and fixedly welded to the bottom frame.

[0008] Furthermore, the paving cover plate also includes several edge steel strips, which are respectively fixedly welded to the four corners of the side frame. The upper surface of each edge steel strip is provided with a reflective coating, and the upper end of the paving surface layer is provided with a paving surface.

[0009] Furthermore, the cement mortar layer is internally arranged with longitudinal and transverse reinforcing bars, with the transverse reinforcing bars positioned above the longitudinal reinforcing bars.

[0010] Furthermore, a buffer pad is sandwiched between the paving cover plate and the manhole ring.

[0011] Furthermore, several horizontal bars are arranged on the inner side of the stirrup.

[0012] The beneficial effects of this utility model are as follows:

[0013] (1) The manhole cover and the paving cover of this utility model are sandwiched with a filling layer, which includes a sand layer and a non-woven fabric layer. The sand layer can disperse the impact force on the paving cover when it is run over by vehicles, so that the load of the paving cover is evenly distributed and effectively supported, thereby preventing the paving cover from deforming or breaking due to long-term pressure, and effectively improving the durability and stability of the paving cover. The non-woven fabric layer can wrap the sand layer to prevent the sand particles in the sand layer from being washed away by rainwater or vehicle vibration and entering the gap of the lower manhole cover, causing the drainage system to be blocked. At the same time, the non-woven fabric layer can prevent the sand particles in the sand layer from directly contacting the manhole cover, effectively preventing the sand particles from rubbing against the surface of the manhole cover for a long time, and playing a role in extending the life of the manhole cover.

[0014] (2) The paving cover of this utility model is placed on top of the manhole ring. One end of the manhole ring is fixedly welded with an embedded part. The embedded part is fixedly inserted into the concrete base and one end of it is fixedly connected with a stirrup. The combination structure of the embedded part and the stirrup replaces the existing paving manhole cover that only uses the embedded part during construction. The embedded part and the stirrup share the vehicle load, preventing the stress from being too concentrated around the anchor point and causing the concrete base to crack. At the same time, the paving manhole cover remains stable when it is run over by a vehicle and is impacted, avoiding the situation where the paving manhole cover detaches from the manhole ring and effectively eliminating safety hazards. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a paved manhole cover structure for a vehicle plaza according to the present invention;

[0016] Figure 2 This is a plan view of a paved manhole cover structure for a vehicle plaza according to the present invention;

[0017] Figure 3 This is an enlarged schematic diagram of a node of a paved manhole cover structure for a vehicular plaza according to the present invention.

[0018] In the diagram, 1 is the manhole cover, 2 is the paving cover plate, 201 is the paving surface layer, 2011 is the paving veneer, 202 is the cement mortar layer, 203 is the bottom frame, 204 is the side frame, 205 is the edge steel strip, 2051 is the reflective coating, 3 is the filling layer, 301 is the sand layer, 302 is the non-woven fabric layer, 4 is the manhole ring, 5 is the embedded part, 6 is the stirrup, 7 is the buffer pad, 8 is the horizontal reinforcement, and 9 is the concrete base layer. Detailed Implementation

[0019] 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.

[0020] As attached Figure 1-3 As shown in the present invention, a paved manhole cover structure for a vehicle plaza is provided, including a manhole cover 1 and a paved cover plate 2 disposed above the manhole cover 1. A filling layer 3 is sandwiched between the manhole cover 1 and the paved cover plate 2. The filling layer 3 includes a sand layer 301 and a non-woven fabric layer 302. The non-woven fabric layer 302 is placed on top of the manhole cover 1. One end of the sand layer 301 contacts and abuts against the paved cover plate 2, and the other end of the sand layer 301 contacts and abuts against the non-woven fabric layer 302. The paved cover plate 2 is placed on top of the manhole ring 4. One end of the manhole ring 4 is fixedly welded with an embedded part 5. The embedded part 5 is fixedly inserted into the concrete base layer 9 and one end of it is fixedly connected to a stirrup 6.

[0021] In a specific implementation of this utility model, when vehicles in the vehicular plaza roll over the pavement cover 2, the sand layer 301 supporting the pavement cover 2 below it disperses the impact force on the pavement cover 2 when it is rolled over by vehicles, so that the load on the pavement cover 2 is evenly distributed, preventing the pavement cover 2 from deforming or breaking due to long-term pressure and becoming unusable. In addition, the pavement cover 2 is supported by the combination of the embedded part 5 and the stirrup 6, so as to jointly bear the vehicle load and evenly transfer the vehicle load to the concrete base 9 and the surrounding roadbed, avoiding stress concentration that could cause the concrete base 9 to crack. When vehicles repeatedly roll over the pavement cover 2, the stirrup 6 can inhibit the expansion of micro-cracks in the concrete base 9, while the embedded part 5 fixes the position of the pavement cover 2, thereby jointly reducing structural fatigue damage.

[0022] Specifically, the sand layer 301 is mainly composed of fine sand.

[0023] Specifically, the paving cover 2 has holes for rainwater to flow through.

[0024] Specifically, manhole cover 1 is a cast iron manhole cover, which has excellent load-bearing capacity and durability.

[0025] Specifically, the well ring 4 is made of stainless steel, which has good corrosion resistance and excellent mechanical properties.

[0026] Specifically, the embedded part 5 consists of a ductile iron well base and galvanized anchor bolts, and the material of the stirrup 6 is hot-dip galvanized.

[0027] Specifically, the non-woven fabric layer 302 is made of polypropylene non-woven fabric, which has anti-aging and corrosion-resistant properties. The non-woven fabric layer 302 is fixed to the upper surface of the manhole cover 1 by adhesive. The non-woven fabric layer 302 has the characteristics of being permeable to water but impermeable to sand. On the one hand, it allows rainwater to penetrate smoothly into the lower drainage system while preventing the sand layer from hardening. On the other hand, it can prevent sand particles from the sand layer 301 from being washed away by rainwater or carried into the gaps of the lower manhole cover 1 by vehicle vibration, thus preventing the drainage system from being blocked.

[0028] The paving cover plate 2 of this utility model includes a paving surface layer 201, a cement mortar layer 202, a bottom frame 203, and a side frame 204. The paving surface layer 201 is disposed above the cement mortar layer 202, and the cement mortar layer 202 is sandwiched between the paving surface layer 201 and the bottom frame 203. The paving surface layer 201 is bonded and fixed to the bottom frame 203 through the cement mortar layer 202 and forms an integral part. The side frame 204 is disposed on one side of the cement mortar layer 202 and is fixedly welded to the bottom frame 203.

[0029] Specifically, the material of the paving surface layer 201 is the same as that of the adjacent paving material.

[0030] Specifically, the bottom frame 203 is made of galvanized steel, which has excellent corrosion resistance, while the side frame 204 is made of stainless steel.

[0031] The paving cover plate 2 of this utility model also includes several edge steel strips 205, which are fixedly welded to the four corners of the side frame 204. The upper surface of each edge steel strip 205 is provided with a reflective coating 2051, and the upper end of the paving surface layer 201 is provided with a paving surface 2011.

[0032] Specifically, the edge-sealing steel strip 205 is made of stainless steel. The reflective coating 2051 allows for quick determination of the actual position of the paving cover 2, facilitating maintenance work by maintenance personnel.

[0033] The cement mortar layer 202 of this utility model has longitudinal and transverse steel bars arranged inside, with the transverse steel bars located above the longitudinal steel bars.

[0034] Specifically, longitudinal reinforcement can distribute local wheel loads to the surrounding area, reducing local compressive stress to a certain extent, while transverse reinforcement can block the extension of longitudinal cracks and divide long cracks into multiple short crack segments, thereby improving the overall structural integrity.

[0035] In this utility model, a buffer pad 7 is sandwiched between the paving cover plate 2 and the well ring 4.

[0036] Specifically, the buffer pad 7 has a buffering effect, and its viscoelastic properties can absorb part of the vehicle's impact energy, converting the vehicle's instantaneous impact load into slowly released heat energy.

[0037] The inner side of the stirrup 6 of this utility model is provided with several horizontal bars 8.

[0038] Specifically, several transverse bars 8 and stirrups 6 together form a "cage constraint" to restrict the lateral expansion of the concrete base layer 9 under pressure, so that the concrete base layer 9 is in a triaxial compression state, which improves its compressive strength to a certain extent.

[0039] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A paving manhole structure for a car park, comprising a manhole cover and a paving cover plate provided above the manhole cover, characterized in that, The filling layer is arranged between the well lid and the paving cover plate, and the filling layer comprises a sand layer and a non-woven fabric layer.

2. A paving structure for a car park according to claim 1, characterized in that The paving cover plate comprises a paving surface layer, a cement mortar layer, a bottom frame and a side frame.

3. A paving structure for a car park according to claim 2, characterised in that, The paving cover plate further comprises a plurality of edge-enclosing steel strips, the plurality of edge-enclosing steel strips are respectively fixedly welded at four corners of the side frame, upper surfaces of the plurality of edge-enclosing steel strips are provided with reflective coatings, and an upper end of the paving surface layer is provided with a paving veneer.

4. The paving structure of a manhole cover for a driveway square according to claim 2, wherein The cement mortar layer is internally arranged with longitudinal steel bars and transverse steel bars.

5. The paving structure of a manhole cover for a driveway according to claim 1, wherein The paving cover plate and the well ring are arranged with a buffer rubber pad therebetween.

6. The paving structure of a manhole cover for a driveway according to claim 1, wherein The inner side of the stirrup is arranged with a plurality of transverse bars.

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