Rapid construction shortcut
By using a combined structure of foam concrete layer and prefabricated reinforced concrete slabs on the silt formation, the problems of slow forming speed and high subsequent clearance cost are solved, rapid construction and efficient demolition are achieved, and the stability and economicality of the construction walkway are improved.
Patent Information
- Application Number
- CN202422044442.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing construction walkways are slow to form on the silt formation, have a long construction period, and are at high cost of subsequent clearance, and are insufficient in safety and durability.
The foam concrete layer is used as the bottom layer to contact the silt layer. Arrays of multiple precast reinforced concrete slabs are distributed on the foam concrete layer to form the top layer. Combined with asphalt paste filling and concave and concave structure connections, the design provides a uniform bearing surface and telescopic space.
It realizes rapid construction, facilitates later demolition or reuse, reduces foundation load-bearing pressure, improves the stability and durability of construction walkways, and enhances economy and safety.
Smart Images
Figure CN223134890U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure belongs to the technical field of municipal engineering, and particularly relates to a rapid construction access road. Background Art
[0002] Silt has disadvantages such as low bearing capacity, high water content, large compressibility, and rheology. When carrying out construction operations on silt strata, the first thing to consider is the problem of the passage of construction machinery. Therefore, a construction access road is a prerequisite for starting project construction.
[0003] There are mainly two traditional methods for constructing access roads on silt sites. One is to use stone-filled compaction of silt, which is a reinforcement treatment method that forcibly replaces the soft soil foundation by concentrating a large amount of earth and stone fillers on the surface of the silt and relying on the self-weight of the filling body to squeeze the silt. The other is to use geotextiles or geogrids as a cushion at the bottom and then fill with earth and stone. The above methods can basically meet the requirements for the passage of construction machinery, but they all have certain deficiencies:
[0004] 1) Generally, the construction access road needs to be filled with more than 3m, and the earth and stone filling volume is large, the forming speed is slow, and the construction period is long;
[0005] 2) The stone filling or geotextiles left under the construction access road become obstacles to the subsequent foundation construction, and the subsequent obstacle removal cost is high;
[0006] 3) For the construction access road filled with earth and stone, after rain, the road becomes muddy and pitted, and needs to be repaired many times, resulting in a large investment in safety and civilization measures. Summary of the Invention
[0007] The purpose of the present disclosure is to provide a rapid construction access road, which can solve at least part of the above technical problems.
[0008] The first aspect of the embodiment of the present disclosure provides a rapid construction access road, which includes:
[0009] A foamed concrete layer, as the bottom layer of the construction access road, is in direct contact with the silt layer;
[0010] Multiple precast reinforced concrete slabs are arranged in an array on the foamed concrete layer and form the top layer of the construction access road.
[0011] The main technical effects achieved by the embodiments of the present disclosure are as follows: Foamed concrete contains a large number of closed pores inside, which results in a low density. This makes it lighter than traditional concrete under the same volume; the lightweight foamed concrete generates less ballast on the silt layer, contributing to reducing the bearing pressure of the foundation and lowering the risk of settlement or instability caused by construction loads; although the foamed concrete layer is light, it still has sufficient compressive strength to support the load of the upper precast reinforced concrete slab, ensuring the overall stability of the construction access road; in addition, the top precast reinforced concrete slab and the foamed concrete layer form a composite structure, and this design allows for rapid construction and facilitates later demolition or reuse, further enhancing the practicality and economy of the construction access road. The array distribution of the precast reinforced concrete slabs provides a uniform bearing surface, meeting the passing requirements of construction machinery while ensuring the durability and ease of maintenance of the construction access road.
[0012] Optionally, a gap with a width of 0.5 - 1.5 cm is left between two adjacent precast reinforced concrete slabs.
[0013] The main technical effects achieved by the embodiments of the present disclosure are as follows: The gap left between the precast reinforced concrete slabs provides the necessary expansion and contraction space for the slabs, effectively avoiding stress concentration and potential cracks caused by thermal expansion and contraction due to temperature changes to the slabs, thereby improving the durability and reliability of the construction access road.
[0014] Optionally, the construction access road further includes asphalt paste; the asphalt paste is filled in the gap between two adjacent precast reinforced concrete slabs.
[0015] The main technical effects achieved by the embodiments of the present disclosure are as follows: The asphalt paste filled in the gaps between the precast reinforced concrete slabs not only provides good sealing performance to prevent the intrusion of moisture and impurities, but also its elastic properties can buffer the small movements between the slabs, further enhancing the stability and deformation resistance of the construction access road.
[0016] Optionally, the foamed concrete layer is made of lightweight materials and has a thickness range of 30 - 60 cm.
[0017] The main technical effects achieved by the embodiments of the present disclosure are as follows: The lightweight materials and adjustable thickness range of the foamed concrete layer allow for optimized design according to specific geological conditions and bearing requirements, ensuring the adaptability and economy of the construction access road in different engineering environments.
[0018] Optionally, the foamed concrete layer also has vertically extending drainage holes, which penetrate the foamed concrete layer and are located horizontally between two adjacent precast reinforced concrete slabs.
[0019] The main technical effects achieved by the embodiments of the present disclosure are as follows: The vertical drainage holes in the foamed concrete layer improve the drainage efficiency of the access road, effectively prevent the softening of the foundation and the decrease in bearing capacity caused by water accumulation. At the same time, the drainage holes at the positions of the inter-slab gaps help reduce the risk of uneven settlement under the slabs.
[0020] Optionally, the precast reinforced concrete slab is provided with four lifting holes; the four lifting holes are respectively located at the four corners of the precast reinforced concrete slab, so that the precast reinforced concrete slab can be stacked on the foamed concrete layer in a lifting manner.
[0021] The main technical effects achieved by the embodiments of the present disclosure are as follows: The design of the lifting holes of the precast reinforced concrete slab simplifies the handling and installation process of the slabs, improves the construction efficiency, and at the same time, the position design of the lifting holes ensures the stability and safety of the slabs during the lifting process.
[0022] Optionally, the thickness of the precast reinforced concrete slab is 30 - 50 cm.
[0023] The main technical effects achieved by the embodiments of the present disclosure are as follows: The thickness design of the precast reinforced concrete slab provides sufficient structural strength and stiffness to withstand the loads of construction machinery and heavy vehicles. At the same time, the thickness range of 30 - 50 cm allows for adjustment according to different bearing requirements to achieve optimal bearing performance and economy.
[0024] Optionally, a number of horizontally extending steel bars are provided inside the precast reinforced concrete slab; the number of the steel bars are arranged in an array on the vertical plane, and the distance between adjacent two steel bars is not less than 9 cm and not more than 15 cm.
[0025] The main technical effects achieved by the embodiments of the present disclosure are as follows: The configuration of the horizontal steel bars inside the precast reinforced concrete slab enhances the bending and shear resistance of the slab. The array distribution and distance design of the steel bars ensure the uniform distribution of internal stress in the concrete, improving the overall bearing capacity and durability of the slab.
[0026] Optionally, the precast reinforced concrete slab also has anti-slip textures, and the anti-slip textures are located on the upper surface of the precast reinforced concrete slab.
[0027] The main technical effects achieved by the embodiments of the present disclosure are as follows: The anti-slip textures on the upper surface of the precast reinforced concrete slab provide a good friction coefficient, which can effectively prevent construction personnel and machinery from sliding even under wet or harsh weather conditions, ensuring the safety of the construction process.
[0028] Optionally, adjacent two precast reinforced concrete slabs are connected through a concave-convex structure.
[0029] The main technical effects achieved by the embodiments of the present disclosure are as follows: The concave-convex structure connection between precast reinforced concrete slabs provides a mechanical interlocking effect, enhancing the connection strength and integrity between the slabs. Even under heavy loads or dynamic loads, the stability and structural integrity of the access road can be maintained. Description of the Drawings
[0030] Figure 1 It is a schematic diagram of a rapid construction access road in the embodiments of the present disclosure;
[0031] Figure 2 In the present disclosure Figure 1 is a sectional view taken along line A-A;
[0032] Figure 3 In the present disclosure Figure 1 is a sectional view taken along line B-B;
[0033] Figure 4 It is a schematic diagram of a concave-convex structure in the embodiments of the present disclosure.
[0034] Description of the reference numerals: 1, foam concrete layer; 2, precast reinforced concrete slab; 3, asphalt paste; 4, concave-convex structure. Detailed Embodiments
[0035] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The methods described in the following exemplary embodiments do not represent all the ways consistent with the present disclosure. On the contrary, they are only examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.
[0036] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. Unless otherwise defined, the technical or scientific terms used in this disclosure should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure pertains. The terms "first", "second" and similar terms used in the specification and claims of this disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a limitation of quantity, but rather indicate the presence of at least one. When referring only to "one", it will be specifically stated separately. "Plural" or "several" means two or more. Unless otherwise indicated, terms such as "front part", "rear part", "lower part" and / or "upper part" are for convenience of description only and are not limited to a particular position or spatial orientation. Terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. Terms such as "connected" or "coupled" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "the" and "said" used in the specification and appended claims of this disclosure are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0037] As Figures 1-4 shown, a rapid construction access road according to an embodiment of the present disclosure, the construction access road includes a foamed concrete layer 1 and a plurality of precast reinforced concrete slabs 2. In the embodiment of the present disclosure, the foamed concrete layer 1 and the plurality of precast reinforced concrete slabs 2 cooperate to form a composite construction access road, which has good integrity and high stiffness, ensuring the safe and stable passage of construction machinery on the soft silt ground layer.
[0038] Among them, the foamed concrete layer 1 serves as the bottom layer of the construction access road and is in direct contact with the silt layer. Due to the large number of closed pores inside it, foamed concrete has a relatively low density, which makes it lighter than traditional concrete under the same volume. The lightweight foamed concrete exerts less ballast on the silt layer, helping to reduce the bearing pressure of the foundation and lower the risk of settlement or instability caused by construction loads. Although the foamed concrete layer 1 is light, it still has sufficient compressive strength to support the load of the upper precast reinforced concrete slab 2, ensuring the overall stability of the construction access road. Multiple precast reinforced concrete slabs 2 are arranged in an array on the foamed concrete layer 1 and form the top layer of the construction access road. This design allows for rapid construction and facilitates later demolition or reuse, further enhancing the practicality and economy of the construction access road. The array distribution of the precast reinforced concrete slabs 2 provides a uniform bearing surface, meeting the passing requirements of construction machinery, while ensuring the durability of the construction access road and the simplicity of maintenance.
[0039] As an optional implementation manner, a gap with a width of 0.5 - 1.5 cm is left between two adjacent precast reinforced concrete slabs 2. Specifically, the gap width between two adjacent precast reinforced concrete slabs 2 in the present disclosure is 1 cm, providing necessary expansion space for the slabs, effectively avoiding stress concentration and potential cracks caused by thermal expansion and contraction due to temperature changes to the slabs, thereby improving the durability and reliability of the construction access road.
[0040] As an optional implementation manner, the construction access road further includes asphalt paste 3; the asphalt paste 3 is filled in the gap between two adjacent precast reinforced concrete slabs 2. The asphalt paste 3 filled in the gap between the precast reinforced concrete slabs 2 not only provides good sealing performance to prevent the intrusion of moisture and impurities, but also its elastic characteristics can buffer the slight movement between the slabs, further enhancing the stability and anti-deformation ability of the construction access road.
[0041] As an optional implementation manner, the foamed concrete layer 1 is made of lightweight materials, and its thickness ranges from 30 to 60 cm. The actual thickness is optimized according to the geological conditions and bearing requirements of the silt layer, ensuring the adaptability and economy of the construction access road in different engineering environments.
[0042] As an optional implementation manner, the foamed concrete layer 1 also has vertically extending drainage holes. The drainage holes penetrate through the foamed concrete layer 1 and are horizontally located between two adjacent precast reinforced concrete slabs 2. The vertically extending drainage holes in the foamed concrete layer 1 improve the drainage efficiency of the access road, effectively preventing the softening of the foundation and the decrease in bearing capacity caused by water accumulation. At the same time, the position of the drainage holes in the slab gap helps to reduce the risk of uneven settlement under the slabs.
[0043] For convenient transportation and hoisting, the planar dimension of each precast reinforced concrete slab 2 is 3x1.5 m, and the thickness is 30 - 50 cm. The precast reinforced concrete slab 2 is provided with four hoisting holes; the four hoisting holes are respectively located at the four corners of the precast reinforced concrete slab 2, so that the precast reinforced concrete slab 2 can be stacked on the foam concrete layer 1 in a hoisting manner.
[0044] As an alternative embodiment, a number of horizontally extending steel bars are provided inside the precast reinforced concrete slab 2; a number of the steel bars are arranged in an array on a vertical plane, and the spacing between adjacent two steel bars is not less than 9 cm and not more than 15 cm. The configuration of the horizontal steel bars inside the precast reinforced concrete slab 2 enhances the bending and shear resistance of the slab, and the array distribution and spacing design of the steel bars ensure the uniform distribution of internal stress in the concrete, improving the overall load-bearing capacity and durability of the slab.
[0045] As an alternative embodiment, the precast reinforced concrete slab 2 also has anti-slip textures, and the anti-slip textures are located on the upper surface of the precast reinforced concrete slab 2. Among them, the anti-slip textures can be straight stripes, oblique stripes, horizontal stripes, dot textures, diamond textures, wave textures, etc.; the present disclosure does not limit this. The anti-slip textures on the upper surface of the precast reinforced concrete slab 2 provide a good friction coefficient, and can effectively prevent construction workers and machinery from sliding even under wet or adverse weather conditions, ensuring the safety of the construction process.
[0046] As an alternative embodiment, two adjacent precast reinforced concrete slabs 2 are connected by a concave-convex structure 4. The connection of the concave-convex structure 4 between the precast reinforced concrete slabs 2 provides a mechanical interlocking effect, enhancing the connection strength and integrity between the slabs, and can maintain the stability and structural integrity of the access road even under heavy loads or dynamic loads. Among them, the concave-convex structure 4 is preferably a trapezoidal concave-convex structure 4, which is convenient for aligning the two precast reinforced concrete slabs 2.
[0047] The above are only the preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included within the scope of protection of the present disclosure.
Claims
1. A rapid construction access road is used for laying on a silt layer; it is characterized in that, The construction access road includes: A foamed concrete layer, serving as the bottom layer of the construction access road, is in direct contact with the silt layer; A plurality of prefabricated reinforced concrete slabs are distributed in an array on the foam concrete layer and form the top layer of the construction access road.
2. The rapid construction access road according to claim 1, characterized in that A gap of 0.5 to 1.5 cm wide is left between two adjacent prefabricated reinforced concrete slabs.
3. A rapid construction access road according to claim 2, characterized in that, The construction access road also includes asphalt paste; the asphalt paste is filled in the gap between two adjacent prefabricated reinforced concrete slabs.
4. A rapid construction access road according to any one of claims 1-3, characterized in that, The foam concrete layer is made of lightweight material and has a thickness ranging from 30 to 60 cm.
5. A rapid construction access road according to any one of claims 1 to 3, characterized in that, The foam concrete layer also has a vertically extending drainage hole, which penetrates the foam concrete layer and is located between two adjacent prefabricated reinforced concrete slabs in the horizontal direction.
6. A rapid construction access road according to any one of claims 1-3, characterized in that, The precast reinforced concrete slab is provided with four hoisting holes; the four hoisting holes are respectively located at the four corners of the precast reinforced concrete slab, so that the precast reinforced concrete slab can be stacked on the foam concrete layer in a hoisting manner.
7. A rapid construction access road according to any one of claims 1-3, characterized in that, The thickness of the prefabricated reinforced concrete slab is 30 to 50 cm.
8. A rapid construction access road according to any one of claims 1 to 3, characterized in that A plurality of transversely extending steel bars are arranged inside the prefabricated reinforced concrete slab; the plurality of steel bars are distributed in an array on a vertical plane, and a spacing between two adjacent steel bars is not less than 9 cm and not more than 15 cm.
9. A rapid construction access road according to any one of claims 1 to 3, characterized in that, The prefabricated reinforced concrete slab also has an anti-slip texture, and the anti-slip texture is located on the upper surface of the prefabricated reinforced concrete slab.
10. A rapid construction access road according to any one of claims 1 to 3, characterized in that, Two adjacent prefabricated reinforced concrete slabs are connected via a concave-convex structure.