Top surface greening soil filling anti-sliding system and method

Abstract

The invention provides a top surface greening soil filling anti-sliding system and method, the top surface greening soil filling anti-sliding system is installed on a reverse ridge of a top surface main body structure, and the top surface greening soil filling anti-sliding system comprises at least one earthwork standard room, and the earthwork standard room is laid on an inclined plane of the top surface main body structure and is provided with a plurality of cross nodes distributed in a matrix mode; the stress frame comprises a plurality of supporting rods and a plurality of secondary pull rods, the supporting rods located in the same column are connected through the secondary pull rods, and the supporting rods are all arranged on the inclined face of the top face main body structure and located on the crossed nodes respectively; the connecting units are arranged on the reverse ridges and connected with the supporting rods located on the top of the top face main body structure respectively. Lateral constraint on a soil body is achieved through a three-dimensional net-shaped structure of the geocell, a stress frame formed by the supporting rods and the secondary pull rods transmits sliding force of the soil body to a reverse ridge through the connecting units, an original bending-resistant stress system is simplified into a tensile stress system, the tensile performance of materials is fully exerted, and the overall bearing capacity is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of slope embankment anti-sliding technology, and in particular to a slope embankment greening embankment anti-sliding system and method. Background Technology

[0002] With the development of urban vertical greening, landscape engineering on the roof of buildings / structures (such as sloping roofs and inclined terraces) is becoming increasingly popular. Such projects require covering the sloping areas on the roof of the facilities with soil for planting. However, the downward force generated by the soil's own weight along the sloping direction can easily cause soil slippage, or even lead to a landslide accident.

[0003] Currently, the commonly used method for soil stabilization is aluminum grid, which involves welding aluminum grid to the steel reinforcement of the building's rigid layer to constrain the soil. However, this method has several drawbacks: First, aluminum grid is a bending-resistant system with low load-bearing capacity, and the maximum effective soil stabilization thickness is only 300mm, which cannot meet the needs of planting trees with deeper soil cover. Second, fully covering the top surface of buildings / structures with grid requires the pre-embedding of a large number of tie rods, which damages the waterproof layer and is relatively complicated to construct. If there is local damage, the entire structure needs to be removed and repaired, resulting in high costs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a top-surface greening backfill anti-slip system and method, which solves the problems that existing aluminum grid soil stabilization solutions cannot meet the needs of planting trees with deeper soil cover and that construction is relatively cumbersome.

[0005] On one hand, according to an embodiment of the present invention, the top surface greening backfill anti-slip system, installed on the anti-slip sill of the main structure of the top surface, includes:

[0006] At least one geocell is laid on the sloping surface of the main structure on the top surface and has multiple intersecting nodes distributed in a matrix.

[0007] The load-bearing frame includes several support rods and several secondary tie rods. The support rods in the same column are connected by secondary tie rods, and the support rods are all located on the inclined surface of the main structure on the top surface and are located at each intersection node.

[0008] Several connecting units are located on the inverted curb and are respectively connected to the support rods located at the top of the main structure on the top surface, for fixing the load-bearing frame to the inclined surface of the main structure on the top surface.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] This scheme adopts a composite load-bearing system combining geocells and a load-bearing frame. The three-dimensional mesh structure of the geocells achieves lateral constraint on the soil, while the load-bearing frame composed of support rods and secondary tie rods transfers the downward force of the soil to the retaining wall through several connecting units. This simplifies the original bending load-bearing system into a tensile load-bearing system, giving full play to the tensile properties of the materials and significantly improving the overall load-bearing capacity. At the same time, the connecting units are all located on the retaining wall, rather than having a large number of holes or welds on the main structure on the top surface, avoiding penetrating damage to the roof waterproofing layer and effectively protecting the integrity of the original waterproofing system. Furthermore, multiple support rods form a column structure through secondary tie rods, with each column being relatively independent, possessing good redundancy and fault tolerance, and local failure will not lead to overall instability.

[0011] Preferably, the connecting unit includes a cantilever rod fixed to the invert along the height direction of the invert and a first main tie rod disposed on the cantilever rod, the end of the first main tie rod being connected to a support rod located at the top of the main structure on the top surface.

[0012] Preferably, the cantilever rod is also provided with a second main tie rod, which is connected to a support rod located at the top of the main structure on the top surface.

[0013] Preferably, the cantilever rod is provided with two steel brackets, and the first main tie rod and the second main tie rod are respectively connected to the corresponding steel brackets.

[0014] Preferably, the end of the cantilever rod is provided with an anchor plate, the anchor plate is provided with chemical anchor bolts, and the chemical anchor bolts are connected to the anti-sill.

[0015] Preferably, each of the first main tie rods is equipped with a tension gauge.

[0016] Preferably, the secondary tie rod is threaded with a plurality of second nuts, wherein two adjacent second nuts are clamped on both sides of the corresponding support rod; the ends of the first main tie rod and the second main tie rod are each provided with two first nuts, and the two first nuts are clamped on the end of the support rod located at the top of the main structure on the top surface.

[0017] On the other hand, according to an embodiment of the present invention, the method for anti-slip treatment of top-surface greening backfill includes a top-surface greening backfill anti-slip system, and further includes the following steps:

[0018] Geocell installation involves unfolding the geocells and allowing them to freely unfold along the slope of the main structure on the top surface, and checking whether each geocell has been unfolded.

[0019] Assemble the load-bearing frame, install each support rod on the main structure on the top surface with each intersection node as the installation point, and fix the support rods located in the same column to each other through secondary tie rods;

[0020] A fixed load-bearing frame is constructed by installing several connecting units onto the countersill and connecting them to the corresponding support rods located on the main structure of the top surface, thereby fixing the entire load-bearing frame to the inclined surface of the main structure of the top surface.

[0021] Backfilling involves filling the geocells with soil and leveling the surface.

[0022] Preferably, when the height of the soil layer after backfilling does not meet the planting requirements, the geocell paving and backfilling are repeated, and each intersection node of each geocell is aligned with each support rod.

[0023] Preferably, when the secondary tie rod connects to each support rod, the secondary tie rod passes through the geocell itself.

[0024] Compared with existing technologies, this method has the following advantages:

[0025] By following an orderly construction process of laying geocells, assembling load-bearing frames, fixing them to the retaining wall, and filling soil in layers, efficient, safe, and non-destructive soil stabilization of the roof slope was achieved. This not only ensured that the geocells were fully deployed and the load-bearing frames were accurately installed, improving the overall stability and load-bearing capacity of the system, but also avoided damage to the roof waterproofing layer, significantly improving construction efficiency and the controllability of project quality. Attached Figure Description

[0026] Figure 1 This is a front view schematic diagram of the anti-slip system in an embodiment of the present invention.

[0027] Figure 2 This is a side view of the anti-slip system in an embodiment of the present invention.

[0028] Figure 3 This is a structural schematic diagram of one installation configuration of the support rod in an embodiment of the present invention.

[0029] Figure 4 This is a structural schematic diagram of another installation configuration of the support rod in an embodiment of the present invention.

[0030] Figure 5 This is a schematic diagram of the connection structure between the first main tie rod and the cantilever rod in an embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the connection structure between the cantilever rod and the inverted curb in an embodiment of the present invention.

[0032] In the above attached figures: 1. Main structure of the top surface; 101. Reverse curb; 2. Cantilever rod; 3. First main tie rod; 301. Tension gauge; 302. First nut; 303. Steel bracket; 4. Second main tie rod; 5. Secondary tie rod; 501. Second nut; 6. Support rod; 7. Geocell; 701. Cross node; 8. Anchor plate; 801. Chemical anchor. Detailed Implementation

[0033] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] In existing soil stabilization methods, it is generally necessary to cover the main structure 1 on the top surface with aluminum grids, which involves complex construction processes, difficult waterproofing treatment, and a maximum soil stabilization thickness of only 300mm.

[0035] Based on the above, this embodiment of the invention proposes a top-surface greening backfill anti-sliding system, installed on the inverted retaining wall 101 of the main structure 1 of the top surface, comprising:

[0036] At least one geocell 7 is laid on the inclined surface of the main structure 1 on the top surface and has multiple intersecting nodes 701 distributed in a matrix.

[0037] The load-bearing frame includes several support rods 6 and several secondary tie rods 5. The support rods 6 located in the same column are connected by the secondary tie rods 5, and the support rods 6 are all located on the inclined surface of the main structure 1 on the top surface, and are respectively located at each intersection node 701.

[0038] Several connecting units are provided on the anti-sill 101 and are respectively connected to each support rod 6 located at the top of the main structure 1 on the top surface, for fixing the load-bearing frame to the inclined surface of the main structure 1 on the top surface.

[0039] In an embodiment of the present invention, the geocell 7 is laid along the inclined surface of the main structure 1. When the side of the geocell 7 is first fixed to the top of the main structure 1, the other side of the geocell 7 can unfold under the action of gravity, adapting to roofs or terraces with different inclination angles. Then, each support rod 6 of the load-bearing frame is installed at the intersection node 701 between the main structure 1 and the geocell 7, thereby realizing the unfolding and positioning of the geocell 7. Figure 1 As shown, the support rods 6 in the same column are then connected by the same secondary tie rod 5 and installed on the anti-sill 101 through a connecting unit. Finally, the planting soil is backfilled into the geocell 7. Figure 2 As shown, geocells 7 can be stacked layer by layer. Depending on the planting height, such as the need for deep soil covering (≥500mm) for trees, different numbers of geocells 7 can be selected. After the bottom layer of geocells 7 is covered with soil, geocells 7 are installed one by one upwards. The connection between the support rod 6 and the secondary tie rod 5 can be welded to ensure stability. The connection unit can also be a welded structure or a concrete-cast steel reinforcement structure.

[0040] In the composite load-bearing system of geocell 7 combined with the load-bearing frame, the three-dimensional mesh structure of geocell 7 achieves lateral constraint on the soil. The load-bearing frame composed of support rods 6 and secondary tie rods 5 transmits the soil sliding force to the invert 101 through several connecting units, simplifying the original bending load-bearing system into a tensile load-bearing system, giving full play to the tensile properties of the material, and greatly improving the overall bearing capacity. At the same time, the connecting units are all set in the invert 101, rather than having a large number of holes or welds on the main structure 1 on the top surface, avoiding penetrating damage to the roof waterproofing layer, effectively protecting the integrity of the original waterproofing system. Furthermore, multiple support rods 6 form a column structure through secondary tie rods 5, with each column being relatively independent, possessing good redundancy and fault tolerance, and local failure will not lead to overall instability.

[0041] Based on the above scheme, the structure of the connection unit is optimized, such as... Figure 2 As shown, the connecting unit includes a cantilever rod 2 fixed to the inverted retaining wall 101 along its height direction and a first main tie rod 3 installed on the cantilever rod 2. The end of the first main tie rod 3 is connected to a support rod 6 located at the top of the main structure 1. The soil sliding force is transmitted to the support rod 6 through the intersection node 701 of the geocell 7, and then to the first main tie rod 3 through the secondary tie rod 5 and introduced into the vertically installed cantilever rod 2, ultimately borne by the inverted retaining wall 101. This avoids the problem of uneven stress caused by multi-point dispersed anchoring in traditional solutions. At the same time, the cantilever rod 2 is fixed to the side wall of the inverted retaining wall 101 and does not involve openings in the main structure 1, avoiding physical damage to the waterproof layer and fundamentally eliminating the risk of leakage. In some other embodiments, the first main tie rod 3 can be in the form of a turnbuckle or an adjustable joint, which facilitates fine-tuning of the tension during installation, ensuring uniform stress on each column and improving the overall collaborative performance.

[0042] Secondly, the cantilever rod 2 is also provided with a second main tie rod 4, which is connected to the support rod 6 located at the top of the main structure 1 on the top surface. This can effectively reduce the stress level of a single first main tie rod 3. The cooperation between the first main tie rod 3 and the second main tie rod 4 effectively restricts the torsional, lateral or buckling deformation of the support rod 6 under complex loads.

[0043] Furthermore, such as Figure 5 As shown, the cantilever rod 2 is provided with two steel brackets 303. The first main tie rod 3 and the second main tie rod 4 are respectively connected to the corresponding steel brackets 303. In order to facilitate the connection of the first main tie rod 3 to the cantilever rod 2, the steel brackets 303 are cut and formed from steel plates, which have high rigidity and shear and tensile strength. The first main tie rod 3 and the second main tie rod 4 are respectively connected to the corresponding steel brackets 303. The connection method can be bolt connection or welding. In some other embodiments, the steel brackets 303 have ear plates to support the arrangement of the first main tie rod 3 and the second main tie rod 4 in different directions, which facilitates the on-site adjustment of the tilt angle of the first main tie rod 3 and the second main tie rod 4.

[0044] Specifically, such as Figure 6 As shown, the end of the cantilever rod 2 is provided with an anchor plate 8, and the anchor plate 8 is provided with a chemical anchor bolt 801. The chemical anchor bolt 801 is connected to the curb 101. In order to facilitate the fixed installation of the cantilever rod 2 on the curb 101, the chemical anchor bolt 801 can be installed after drilling on site, without the need to reserve embedded parts during the civil construction stage. Moreover, the cantilever rod 2, the anchor plate 8 and the curb 101 form a surface contact force transmission, which is more stable than point connection.

[0045] Specifically, such as Figure 2 As shown, each of the first main tie rods 3 is equipped with a tension gauge 301. The installation of the tension gauge 301 is existing technology. It can be installed on the first main tie rod 3 itself, or it can be used as a component to connect the first main tie rod 3 with other parts. The tension gauge 301 can realize real-time monitoring of the stress state of the anti-slip system, improve the safety early warning capability, and measure the tension borne by the first main tie rod 3 in real time through the tension gauge 301 to reflect the magnitude and change of the soil sliding trend. At the same time, the tension gauges 301 of each first main tie rod 3 are connected to an external monitoring platform. All the data of the tension gauges 301 are transmitted to the monitoring platform in a centralized manner through wireless or wired means for spatial distribution analysis and identification of areas with abnormal stress.

[0046] Specifically, to facilitate the understanding of the structural framework, such as Figure 1 , Figure 3 and Figure 4 As shown, the secondary tie rod 5 is threaded with several second nuts 501, wherein two adjacent second nuts 501 are clamped on both sides of the corresponding support rod 6; the ends of the first main tie rod 3 and the second main tie rod 4 are each provided with two first nuts 302, and the two first nuts 302 are clamped on the end of the support rod 6 located at the top of the main structure 1 on the top surface.

[0047] The support rod 6 near the top of the main structure 1 is installed in a "C" shape, while all other support rods 6 are installed in an "N" shape. When connecting the support rods 6 in the same row via the secondary tie rod 5, the... Figure 1 For example, the end of the secondary tie rod 5 is connected to the lower end of the top support rod 6, while the upper end is used to connect to the first main tie rod 3. When connecting, the two first nuts 302 can be tightened respectively, so that the two first nuts 302 are clamped at both ends of the top support rod 6. Except for the support rod 6 near the top of the main structure 1, all other support rods 6 can be installed one by one by passing them through, and clamped by the second nut 501. This not only saves installation time, but also ensures the connection strength between the support rod 6 and the secondary tie rod 5.

[0048] This invention also proposes a method for anti-slip treatment of top-surface greening backfill, including the above-mentioned top-surface greening backfill anti-slip system, and further including the following steps:

[0049] The geocell 7 is laid out by unfolding the geocell 7 and freely unfolding it along the slope direction of the main structure 1 on the top surface, and checking whether each cell of the geocell 7 has been unfolded.

[0050] Assemble the load-bearing frame, install each support rod 6 on the top main structure 1 with each intersection node 701 as the installation point, and fix the support rods 6 located in the same column through the secondary tie rods 5;

[0051] The fixed load-bearing frame is installed on the anti-sill 101, and the support rods 6 corresponding to the main structure 1 on the top surface are connected to it respectively, so that the entire load-bearing frame is fixed on the inclined surface of the main structure 1 on the top surface.

[0052] Backfill with soil, filling the soil layer into each cell of geocell 7 and leveling it.

[0053] Through an orderly construction process of laying geocells 7, assembling the load-bearing frame, fixing it to the retaining wall 101, and filling soil in layers, efficient, safe, and non-destructive soil stabilization of the roof slope was achieved. This not only ensured that geocells 7 were fully deployed and the load-bearing frame was accurately installed, improving the overall stability and load-bearing capacity of the system, but also avoided damage to the roof waterproofing layer, significantly improving construction efficiency and the controllability of project quality.

[0054] Specifically, when the height of the soil layer after backfilling does not meet the planting requirements, the geocell 7 is paved and backfilled repeatedly, and each intersection node 701 of each geocell 7 is aligned with each support rod 6, which can meet the paving and anti-slip requirements of different planting layers.

[0055] Specifically, when the secondary tie rod 5 connects to each support rod 6, the secondary tie rod 5 passes through the geocell 7 itself, which further improves the stability of the geocell 7 and increases its tensile strength.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A top-surface greening backfill anti-sliding system, installed on the inverted retaining wall (101) of the main structure (1) of the top surface, characterized in that, include: At least one geocell (7) is laid on the slope of the top main structure (1) and has multiple intersecting nodes (701) distributed in a matrix. The load-bearing frame includes several support rods (6) and several secondary tie rods (5). The support rods (6) located in the same column are connected by the secondary tie rods (5). The support rods (6) are all located on the inclined surface of the main structure (1) and are located at each of the intersection nodes (701). Several connecting units are provided on the anti-sill (101) and are respectively connected to the support rods (6) located on the top of the main structure (1) of the top surface, for fixing the force-bearing frame to the inclined surface of the main structure (1).

2. The top-surface greening backfill anti-sliding system according to claim 1, characterized in that, The connecting unit includes a cantilever rod (2) fixed to the inverted curb (101) along the height direction of the inverted curb (101) and a first main tie rod (3) provided on the cantilever rod (2). The end of the first main tie rod (3) is connected to the support rod (6) located at the top of the main structure (1) on the top surface.

3. The top-surface greening backfill anti-sliding system according to claim 2, characterized in that, The cantilever rod (2) is also provided with a second main tie rod (4), which is connected to the support rod (6) located at the top of the main structure (1) on the top surface.

4. The top-surface greening backfill anti-sliding system according to claim 3, characterized in that, The cantilever rod (2) is provided with two steel brackets (303), and the first main tie rod (3) and the second main tie rod (4) are respectively connected to the corresponding steel brackets (303).

5. The top-surface greening backfill anti-sliding system according to claim 2, characterized in that, The end of the cantilever rod (2) is provided with an anchor plate (8), and the anchor plate (8) is provided with a chemical anchor bolt (801), which is connected to the anti-sill (101).

6. The top-surface greening backfill anti-sliding system according to any one of claims 2-4, characterized in that, Each of the first main tie rods (3) is equipped with a tension gauge (301).

7. The top-surface greening backfill anti-sliding system according to claim 4, characterized in that, The secondary tie rod (5) is threaded with a plurality of second nuts (501), wherein two adjacent second nuts (501) are clamped on both sides of the corresponding support rod (6); the ends of the first main tie rod (3) and the second main tie rod (4) are each provided with two first nuts (302), and the two first nuts (302) are clamped on the end of the support rod (6) located at the top of the top surface main structure (1).

8. A method for anti-slip treatment of roof greening backfill, comprising an anti-slip system for roof greening backfill according to any one of claims 1-7, characterized in that, It also includes the following steps: Geocell (7) is laid out, and the geocell (7) is unfolded and freely unfolded along the slope direction of the main structure (1) on the top surface, and it is checked whether each geocell (7) is unfolded. Assemble the load-bearing frame, install each support rod (6) on the top main structure (1) with each intersection node (701) as the installation point, and fix the support rods (6) located in the same column through the secondary tie rod (5); The fixed load-bearing frame is installed on the anti-sill (101) and connected to the support rods (6) corresponding to the main structure (1) on the top surface, so that the entire load-bearing frame is fixed on the inclined surface of the main structure (1) on the top surface. Fill the soil layer into each cell of the geocell (7) and level it.

9. The method for anti-sliding soil filling for top surface greening according to claim 8, characterized in that, When the height of the soil layer after backfilling does not meet the planting requirements, repeat the laying and backfilling of the geocell (7), and ensure that each intersection node (701) of each geocell (7) corresponds to each support rod (6).

10. The method for anti-sliding soil filling for top surface greening according to claim 8, characterized in that, When the secondary tie rod (5) connects to each support rod (6), the secondary tie rod (5) passes through the geocell (7) itself.

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