EPS insulation board integrated assembly type temporarily-built retaining wall

Abstract

The utility model discloses an EPS insulation board integrated assembly type temporarily-built retaining wall, and relates to the technical field of building construction. According to the technical scheme, the retaining wall comprises a retaining wall foundation, retaining plate blocks are arranged above the retaining wall foundation, installation stand columns are additionally arranged between the adjacent retaining plate blocks, the lower ends of the installation stand columns are fixedly installed on the retaining wall foundation, and the two adjacent retaining plate blocks are installed on the opposite sides of the installation stand columns between the two adjacent retaining plate blocks respectively; the fence plate block comprises a steel framework, and a waste rock wool sandwich color steel plate is mounted on the steel framework; waste EPS (Expandable Polystyrene) extrusion molding insulation boards are fully paved on the outer sides of the mounting stand columns and the fence plate blocks, and cover mortar is coated on the outer sides of the EPS extrusion molding insulation boards. According to the temporarily-built retaining wall, the waste rock wool sandwich color steel plates and the EPS extrusion molding heat preservation plates are recycled, so that the construction efficiency of the temporarily-built retaining wall can be improved, environmental pollution caused by direct abandoning of building materials is reduced, and the effect of saving the cost of a construction unit can be achieved.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to an EPS insulation board integrated prefabricated temporary retaining wall. Background Technology

[0002] Rock wool sandwich panels possess excellent fire resistance and heat insulation properties, while EPS (extruded polystyrene) insulation boards exhibit superior high compressive strength, moisture resistance, and corrosion resistance. They are frequently used in the construction industry. During construction, both rock wool sandwich panels and EPS insulation boards often require cutting according to the specific construction location, resulting in a significant amount of waste rock wool sandwich panels and waste EPS insulation boards. Effective utilization of these materials can not only save resources and reduce pollution but also help manufacturing companies reduce costs and increase efficiency. Utility Model Content

[0003] This application provides an integrated prefabricated temporary retaining wall using EPS insulation boards, which can effectively utilize waste rock wool sandwich color steel plates and waste EPS extruded insulation boards, reducing resource waste and environmental pollution while also saving normal costs for enterprises.

[0004] The above-mentioned objective of this application is achieved through the following technical solution:

[0005] An EPS insulation board integrated prefabricated temporary retaining wall includes a retaining wall foundation, a retaining wall panel above the retaining wall foundation, and an installation column between adjacent retaining wall panels. The lower end of the installation column is fixedly installed on the retaining wall foundation, and two adjacent retaining wall panels are respectively installed on one opposite side of the installation column between them.

[0006] The enclosure panels include a steel frame, on which recycled rock wool sandwich color steel plates are installed;

[0007] The outer sides of the installation columns and the enclosure panels are fully covered with waste EPS extruded insulation boards, and the outer sides of the EPS extruded insulation boards are coated with surface mortar.

[0008] Furthermore, the retaining wall foundation includes a brick guide wall, part of which is buried underground and the other part is located above ground. The guide wall is provided with a plurality of structural columns with externally poured C20 concrete evenly along its length, and the height of the structural columns is equal to the height of the guide wall.

[0009] Furthermore, a mounting steel plate is pre-embedded at the top of the structural column during the construction of concrete, and the mounting steel plate is used to install the mounting column.

[0010] Furthermore, the mounting column is made of I-beams, and the lower end of the mounting column is welded to the mounting steel plate at the top of the structural column at the corresponding position.

[0011] Furthermore, the rock wool sandwich color steel plate is fixedly installed together with the steel frame by rivets, and the rock wool sandwich color steel plate and the EPS extruded insulation board are also fixed together by rivets.

[0012] Furthermore, the surface of the EPS extruded insulation board is covered with alkali-resistant mesh fabric, and the overlap length between two adjacent pieces of the alkali-resistant mesh fabric is 200mm.

[0013] Furthermore, the top of the enclosure panel is provided with a retaining wall eave.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] This application utilizes waste rock wool sandwich color steel panels and waste EPS extruded insulation boards from other engineering projects to effectively reuse temporary retaining walls. Because these waste materials are lightweight, construction is not only convenient, but they also effectively reduce the safety risks to pedestrians should the retaining wall collapse in special circumstances. Furthermore, the reuse of these waste materials effectively mitigates the adverse environmental impact of construction activities. Since the use of waste materials can replace the input of other building materials, it effectively helps enterprises reduce costs and increase efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram showing the state of some of the temporary retaining walls in use according to this application;

[0018] Figure 2 This is a schematic diagram showing the state of one of the fence panels and the installation columns during assembly.

[0019] Figure 3 Is Figure 2 A schematic diagram showing the state after EPS extruded insulation boards have been laid on the outside of the fence panels and installation columns;

[0020] Figure 4 Is Figure 3 A schematic diagram showing the state after the alkali-resistant mesh cloth is bonded to the outside of the EPS extruded insulation board with crack-resistant mortar.

[0021] Figure 5 Is Figure 4 After applying the topcoat mortar, the wall structure diagram shows the cut-out of each layer of the wall structure.

[0022] Attached reference numerals: 1. Retaining wall foundation; 101. Guide wall construction; 102. Structural column; 2. Enclosure panel; 21. Steel frame; 22. Rock wool sandwich color steel plate; 3. Installation column; 4. EPS extruded insulation board; 5. Finishing mortar; 6. Installation steel plate; 7. Alkali-resistant mesh cloth; 8. Retaining wall coping eaves; 9. Corner strips; 10. 3:7 lime-soil mixture. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0024] like Figures 1-3 As shown, this application discloses an EPS insulation board integrated prefabricated temporary retaining wall, which includes a retaining wall foundation 1, a retaining wall panel 2 above the retaining wall foundation 1, and an installation column 3 between adjacent retaining wall panels 2. The lower end of the installation column 3 is fixedly installed on the retaining wall foundation 1, and two adjacent retaining wall panels 2 are respectively installed on one opposite side of the installation column 3 between them.

[0025] The enclosure panel 2 includes a steel frame 21, on which waste rock wool sandwich color steel plate 22 is installed; the outer side of the installation column 3 and the enclosure panel 2 is fully covered with waste EPS extruded insulation board 4, and the outer side of the EPS extruded insulation board 4 is coated with surface mortar 5.

[0026] In the above embodiments, temporary retaining walls are common temporary protective facilities during construction. They are used as temporary barriers around the construction area. The main function of the retaining walls is to clearly delineate the construction area from the non-construction area, preventing non-construction personnel or vehicles from accidentally entering and causing unnecessary safety accidents.

[0027] The retaining wall foundation 1 provides a safe and stable support foundation for the above-ground facilities such as the enclosure panels 2 and the mounting columns 3. Different enclosure panels 2 are connected together by mounting columns 3, thus forming a continuous and enclosed protective zone around the construction area. The steel frame 21 of the enclosure panel 2 in this application is welded from horizontal and vertical square steel pipes. The preferred specifications for the horizontal square steel pipes are 50mm×50mm×2.5mm, and the preferred specifications for the vertical square steel pipes are 60mm×60mm×3.5mm. The length of the horizontal square steel pipes depends on the design width of the entire enclosure panel 2, and the length of the vertical square steel pipes depends on the design height of the entire enclosure panel 2. When fabricating the fencing panel 2, waste rock wool sandwich color steel panels 22 obtained from other projects are fully laid on the steel frame 21 composed of horizontal and vertical square steel pipes. Since the waste rock wool sandwich color steel panels 22 are mostly scraps after cutting, their specific dimensions are not uniform. The number of horizontal square steel pipes can be adjusted according to the actual situation when fabricating the fencing panel 2, so as to ensure that each waste rock wool sandwich color steel panel 22 can obtain a stable and uniform support effect on the steel frame 21. In addition to dividing the construction area into construction area and non-construction area, the temporary retaining wall also needs to have a certain dust prevention and noise reduction effect. EPS extruded insulation board 4 has many closed bubble structures, which not only have excellent thermal insulation performance, but also have a good sound insulation effect. This application uses waste EPS extruded insulation board 4 to cover the surface of the interconnected fencing panels 2 and the installation columns 3. In this way, the temporary retaining wall of this application can effectively reduce noise pollution in the construction area when in use. Finally, after applying the topcoat mortar 5 to the outside of the EPS extruded insulation board 4, the structural stability of the entire temporary retaining wall can be effectively enhanced. The cured mortar base layer can also provide a smooth adhesion surface for subsequent coating, so that the retaining wall can be made into a cultural wall or an advertising cloth can be pasted on it.

[0028] This application's temporary retaining wall effectively utilizes waste rock wool sandwich color steel plates 22 and waste EPS extruded insulation boards 4, and rationally arranges them structurally. This not only efficiently produces temporary retaining walls that meet requirements but also saves resources, reduces pollution, and helps production enterprises reduce costs and increase efficiency. Furthermore, compared to traditional brick-built temporary retaining walls, in addition to improving construction efficiency, it also reduces the structural weight of the retaining wall. Thus, even if the retaining wall collapses in special circumstances, the harm to nearby pedestrians is significantly reduced compared to brick-built retaining walls. Because the waste materials used inside the retaining wall have a certain degree of elasticity and compressibility, even if people accidentally collide with the wall, the probability of injury is reduced compared to a rigid brick temporary retaining wall. In addition, the sound insulation effect of this retaining wall makes it a priority for use as temporary fencing and site division for construction projects where children and the elderly are concentrated.

[0029] Furthermore, such as Figure 2 and Figure 5 As shown, the retaining wall foundation 1 includes a brick guide wall 101. Part of the guide wall 101 is buried underground, and the other part of the guide wall 101 is located on the ground. Multiple structural columns 102 with externally poured C20 concrete are uniformly arranged on the guide wall 101 along its length direction. The height of the structural columns 102 is equal to the height of the guide wall 101.

[0030] In the above embodiments, during the construction of the guide wall 101 of this application, it is necessary to first excavate a foundation trench according to the marked wall position line and design drawings. The trench size is approximately 400mm × 400mm (width and depth of the trench). Then, a 200mm thick layer of 3:7 lime-soil 10 (a commonly used building material in construction; the lime in 3:7 lime-soil 10 can react with substances such as silica and alumina in the soil to generate calcium silicate, calcium aluminate, etc., which tightly bind the soil particles and improve the bearing capacity of the foundation) can be evenly laid in the trench. Next, workers can build the guide wall 101 on top of the 3:7 lime-soil 10 in the trench. The height of the guide wall 101 is 700mm. Since the trench is covered with 3:7 lime-soil 10, the depth is only 200mm. Thus, about 500mm of the guide wall 101 will protrude from the ground to facilitate the installation of the fence panel 2. To improve the seismic performance, integrity, and stability of the wall and reduce the risk of cracking, a structural column 102 of the same height as the guide wall 101 is set every 4 meters or so during the construction of the guide wall 101. The structural column 102 is equipped with a steel reinforcement cage, which is filled with C20 concrete. This provides a reliable installation foundation for the ground structure of the temporary retaining wall and improves its overall overturning resistance during subsequent use.

[0031] Furthermore, such as Figure 2 As shown, a mounting steel plate 6 is pre-embedded in the top of the structural column 102 during the construction of concrete. The mounting steel plate 6 is used to install the mounting column 3.

[0032] In the above embodiments, the overall strength of the concrete structural column 102 in the retaining wall foundation 1 is not only higher than that of the brick guide wall 101, but also has a certain fluidity before the concrete solidifies when the structural column 102 is poured. At this time, after the installation steel plate 6 is placed on top of it, the installation steel plate 6 will automatically form a solid integrated structure with the structural column 102 after the concrete solidifies, which is more convenient than fixing the installation steel plate 6 to the brick body.

[0033] Furthermore, such as Figure 2 As shown, the mounting column 3 is made of I-beams, and the lower end of the mounting column 3 is welded to the mounting steel plate 6 on the top of the corresponding structural column 102.

[0034] In the above embodiments, the lower end of the I-beam can be fixedly installed on the mounting steel plate 6 at the top of the structural column 102 by welding. The width of one of the open sides of the I-beam is just enough to provide a suitable space for the installation of the enclosure panel 2. The longitudinal square tubes at both ends of each enclosure panel 2 are respectively embedded in an I-beam. In this way, the mounting column 3 of this structure can limit and fix the enclosure panel 2, preventing it from deviating along its own thickness direction during subsequent construction. After the enclosure panel 2 is installed in place between two mounting columns 3, fastening bolts and nuts can be installed on the overlapping area of ​​the mounting column 3 and the enclosure panel 2 to further improve the connection effect between them.

[0035] Furthermore, the rock wool sandwich color steel plate 22 is fixed together with the steel frame 21 by rivets, and the rock wool sandwich color steel plate 22 and the EPS extruded insulation board 4 are also fixed together by rivets.

[0036] In the above embodiments, the rock wool sandwich color steel plate 22 and the steel frame 21, as well as the rock wool sandwich color steel plate 22 and the EPS extruded insulation board 4, are fixed with rivets. This not only facilitates construction (rivets can be driven in with a rivet gun) but also ensures that the final constructed retaining wall is sturdy, reliable, and durable. An EPS extruded insulation board 4 can be used to form a square column on the outside of each installation column 3. This not only improves the aesthetics of the temporary retaining wall but also facilitates workers in confirming the position of the installation column 3 when dismantling the retaining wall later. The EPS extruded insulation board 4 is also fixed to the rock wool sandwich color steel plate 22 with rivets spaced 600mm apart and using rivet lengths of 75mm, arranged in a quincunx pattern. The rivets at the installation column 3 locations can be appropriately lengthened according to the column dimensions to ensure that the rivets at the installation column 3 can be smoothly anchored into the overlapping rock wool sandwich color steel plate 22.

[0037] Furthermore, such as Figures 3-5 As shown, the surface of the EPS extruded insulation board 4 is covered with alkali-resistant mesh fabric 7, and the overlap length between two adjacent pieces of alkali-resistant mesh fabric 7 is 200mm.

[0038] In the above embodiments, it is not suitable to directly apply the topcoat mortar 5 to the outside of the EPS extruded insulation board 4. Therefore, in this application, alkali-resistant mesh 7 can be fully laid and fixed on the surface of the EPS extruded insulation board 4 using crack-resistant mortar. This can improve the adhesion of the topcoat mortar 5 to the outside of the EPS extruded insulation board 4 and reduce the risk of peeling off. During construction, adjacent alkali-resistant mesh 7 need to overlap each other by 200mm at the joint because there are breaks at the joints of adjacent alkali-resistant mesh 7. These breaks may be weak points for subsequent application of the topcoat mortar 5. Therefore, this application uses an overlapping method to reinforce the joints of two adjacent alkali-resistant mesh 7, covering the breaks with overlapping mesh, thereby forming a continuous tensile barrier on the outside of the EPS extruded insulation board 4 and reducing the risk of cracks appearing at the joints of the topcoat mortar 5.

[0039] Furthermore, such as Figure 4 As shown, the top of the enclosure panel 2 is provided with a retaining wall eaves 8.

[0040] In the above embodiments, the retaining wall coping eaves 8 provided on the top of the enclosure panel 2 can also be made from waste EPS extruded insulation board 4, which can improve the utilization rate of EPS extruded insulation board 4. In addition, the retaining wall coping eaves 8 made of EPS extruded insulation board 4 can not only effectively improve the aesthetics of the temporary retaining wall after the subsequent application of the topcoat mortar 5, but also play a role in drainage at the top of the temporary retaining wall.

[0041] The implementation principle of this embodiment is as follows: Before construction, the location of the temporary retaining wall is measured and positioned according to the construction plan and site conditions provided by the owner. After the lines are laid out, the owner is asked to confirm, and any discrepancies with the drawings are adjusted promptly. Next, based on the on-site measurements, technicians calculate the number of installation columns 3 and enclosure panels 2 to be manufactured. Before manufacturing, the surface of the rock wool sandwich color steel plate 22 in the enclosure panel 2 is treated with rust prevention (e.g., by applying two coats of red lead anti-rust paint). Then, the rock wool sandwich color steel plate 22 is riveted to the square tube keel of the steel frame 21 to form the required enclosure panel 2. The installation columns 3 and the square tube keel in the enclosure panel 2 are also coated with two coats of anti-rust paint for rust prevention. After the materials for the above-ground part are prepared, foundation construction begins. The foundation trench is excavated according to the lines laid out on the construction site, with a trench size of 400mm × 400mm (trench width and depth). After excavating the foundation trench, a 200mm thick layer of 3:7 lime-soil mixture 10 is laid inside. A 700mm high guide wall 101 is then constructed on top of the 3:7 lime-soil mixture 10. During the construction of the guide wall 101, multiple 700mm high structural columns 102, cast with C20 concrete, are evenly installed according to design requirements. Simultaneously with the pouring of the structural columns 102, the fabricated installation steel plate 6 is installed and fixed to the top of the structural columns 102. The installation steel plate 6 is made of 150mm × 150mm steel. The concrete pouring process must strictly adhere to national standards. After pouring, the concrete should be promptly covered and cured to ensure its structural strength.

[0042] After the concrete structural column 102 reaches a certain strength, the column 3 is welded and installed on the embedded parts. After the column welding is completed, the welding is inspected. After the column passes the inspection, the retaining wall blocks are installed. The commonly used rock wool sandwich color steel plate 22 is 50mm thick. To improve the stability of the retaining wall, diagonal braces can be welded to the steel frame 21 every 25 meters on the inside of the retaining wall, and the welded areas should be re-coated with anti-rust treatment.

[0043] After the fence panel 2 is installed, the waste EPS extruded insulation board 4 is glued to the outer surface of the rock wool sandwich color steel plate 22 with all-purpose adhesive. For the aesthetics of the retaining wall, scraps of waste EPS extruded insulation board 4 can also be used to make a retaining wall coping eaves 8, which are glued to the top of the fence panel 2 with all-purpose adhesive. To prevent the retaining wall from catching fire, B1 grade waste EPS insulation board is preferred.

[0044] After the EPS extruded insulation board 4 is pasted, to ensure the sturdiness, reliability, and durability of the retaining wall, the insulation board is reliably connected and fixed to the rock wool sandwich color steel plate 22 with rivets. During fixing, the rivet spacing is 600mm, the rivet length is 75mm, and they are arranged in a quincunx pattern. The EPS extruded insulation board 4 at the column location (where the column 3 is installed) needs to be shaped like a column, and its thickness will be thicker than the EPS extruded insulation board 4 on the outer side of the main body of the retaining wall panel 2. Therefore, the rivets at this location can be appropriately lengthened according to the column size made of the EPS extruded insulation board 4 on the outer side of the column 3, as long as it can be ensured that the rivets are anchored into the rock wool sandwich color steel plate 22.

[0045] After all rivet fasteners are installed, the alkali-resistant mesh fabric 7 is fully laid and adhered to the EPS extruded polystyrene insulation board 4 with crack-resistant mortar, and then flattened with a trowel. The mesh fabric is overlapped at breaks, with an overlap length of 200mm, to provide crack resistance. After the alkali-resistant mesh fabric 7 is adhered, matching corner strips 9 are installed at each of the retaining wall's internal and external corners to ensure straight edges when applying mortar. After completing the above operations, workers apply a 3mm thick layer of anti-cracking mortar to the exterior, smoothing and compacting it. After the anti-cracking mortar dries, exterior wall putty can be applied as needed to create a cultural wall or attach advertising fabric, improving the wall's aesthetics.

[0046] Through practical application, the temporary retaining wall of this application has proven effective in accelerating construction progress and reducing labor and construction waste emissions. This is because most of the wall structure utilizes lightweight waste EPS extruded insulation board 4 and waste rock wool sandwich color steel plate 22, and, except for the foundation, the above-ground portion employs highly efficient assembly techniques. During use, no wall collapse, tilting, deformation, cracking, or foundation settlement occurred. This application integrates rigidity and flexibility in the wall material, preventing serious injuries like those caused by traditional brick walls in case of accidental collisions, especially providing excellent protection for children and the elderly. The use of waste building materials effectively reduces construction costs, achieving cost reduction and efficiency improvement. Furthermore, the prefabricated nature of this temporary retaining wall makes it easy to assemble and disassemble, and it is recyclable. After partial dismantling (such as installing columns 3 and enclosure panels 2), the wall can be stored properly in a warehouse and reused repeatedly if needed.

[0047] Taking the application effect of this application in the construction project of a nursery complex as an example:

[0048] If traditional brick-concrete structures are used to construct temporary retaining walls, the direct cost per square meter is approximately 300 yuan. However, if the temporary retaining wall proposed in this application is used, the direct cost is only 110 yuan. In this project, the retaining wall area is 650 square meters, and the cost saving for the temporary retaining wall alone is 123,500 yuan, representing a cost saving rate of 63.4%. This has an immediate effect on saving temporary construction costs on construction sites. Furthermore, this retaining wall can be repeatedly disassembled and reused. Considering three repeated uses, a rough calculation shows that the one-time use cost of the temporary retaining wall proposed in this application is approximately 650 × (110 / 3) = 23,833 yuan, and the cost per square meter is only 23,800 / 650 = 36.7 yuan. This price is only 12.23% of that of traditional brick-built temporary retaining walls. Therefore, if the temporary retaining wall proposed in this application can be widely promoted and applied in the construction of temporary fencing on construction sites, it can directly generate significant economic and social benefits.

[0049] Finally, it should be noted that the above 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 or all of the technical features therein. 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 application.

Claims

1. A prefabricated temporary retaining wall made of EPS insulation board, characterized in that: Includes a retaining wall foundation (1), with a retaining wall panel (2) above the retaining wall foundation (1), and an installation column (3) between adjacent retaining wall panels (2). The lower end of the installation column (3) is fixedly installed on the retaining wall foundation (1), and two adjacent retaining wall panels (2) are respectively installed on one opposite side of the installation column (3) between them. The enclosure panel (2) includes a steel frame (21), on which waste rock wool sandwich color steel plate (22) is installed. The outer sides of the installation column (3) and the enclosure panel (2) are fully covered with waste EPS extruded insulation board (4), and the outer side of the EPS extruded insulation board (4) is coated with surface mortar (5).

2. The EPS insulation board integrated prefabricated temporary retaining wall according to claim 1, characterized in that: The retaining wall foundation (1) includes a brick guide wall (101), part of which is buried underground and the other part of which is located on the ground. Multiple structural columns (102) with externally poured C20 concrete are uniformly arranged on the guide wall (101) along its length direction. The height of the structural columns (102) is equal to the height of the guide wall (101).

3. The EPS insulation board integrated prefabricated temporary retaining wall according to claim 2, characterized in that: The top of the structural column (102) has an embedded installation steel plate (6) during the construction of concrete, and the installation steel plate (6) is used to install the installation column (3).

4. The EPS insulation board integrated prefabricated temporary retaining wall according to claim 3, characterized in that: The mounting column (3) is made of I-beams, and the lower end of the mounting column (3) is welded to the mounting steel plate (6) on the top of the structural column (102) at the corresponding position.

5. The EPS insulation board integrated prefabricated temporary retaining wall according to any one of claims 1 to 4, characterized in that: The rock wool sandwich color steel plate (22) is fixed together with the steel frame (21) by rivets, and the rock wool sandwich color steel plate (22) and the EPS extruded insulation board (4) are also fixed together by rivets.

6. The EPS insulation board integrated prefabricated temporary retaining wall according to any one of claims 1 to 4, characterized in that: The surface of the EPS extruded insulation board (4) is covered with alkali-resistant mesh fabric (7), and the overlap length between two adjacent pieces of the alkali-resistant mesh fabric (7) is 200mm.

7. The EPS insulation board integrated prefabricated temporary retaining wall according to claim 1, characterized in that: The top of the enclosure panel (2) is provided with a retaining wall top eave (8).

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