Facade greening planting structure supporting concrete and its construction method

Abstract

The present invention discloses a structure for regreening a facade of retaining concrete and a construction method thereof, comprising: a plurality of floating platforms, the floating platforms being installed on the outer facade of the retaining concrete, the plurality of floating platforms being spaced apart in the vertical direction; a composite mesh, the lower portion of which is installed on the floating platforms and the upper portion of which is arranged obliquely upward toward the outer facade, the slope ratio of the composite mesh being less than 1:0.25; a plurality of embedded steel bars being installed on the outer facade, the embedded steel bars being connected to the composite mesh, and a base layer being formed between the composite mesh, the floating platforms, and the outer facade; an ecologically improved base soil filling the base layer, the ecologically improved base soil comprising modified glutinous rice-based slurry, slow-release fertilizer, and on-site slag; and a seed surface soil layer laid on the outer side of the composite mesh, the seed surface soil layer comprising modified glutinous rice-based slurry, slow-release fertilizer, organic fertilizer, straw, topsoil, and seeds. The present invention solves the problem of white pollution on the concrete surface caused by the presence of a large number of vertical concrete retaining structures after the construction of the factory building structure is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a retaining concrete facade greening planting structure and a construction method thereof. Background Art

[0002] For factory construction projects on sites with high mountains and steep slopes and multiple terraces, a large number of vertical concrete retaining structures will exist after construction, causing the problem of "white pollution" on the concrete surface, which in turn affects the appearance of the factory area. Summary of the Invention

[0003] In order to overcome the defects of the existing technology, a retaining concrete facade greening planting structure and a construction method thereof are provided to solve the problem that after the construction of the factory building structure is completed, there are a large number of vertical concrete retaining structures, which easily cause white pollution on the concrete surface.

[0004] To achieve the above purpose, a retaining concrete facade greening planting structure is provided, comprising:

[0005] Multiple floating decks, each having a fixed side and a cantilevered side, the fixed side of the floating deck being mounted on the outer facade of the retaining concrete, and the multiple floating decks being spaced apart in the vertical direction;

[0006] A composite mesh, wherein the lower portion of the composite mesh is installed on the cantilevered section of the floating platform plate, the upper portion of the composite mesh is arranged obliquely upward toward the facade, the slope ratio of the composite mesh is less than 1:0.25, a plurality of embedded steel bars are installed on the facade, the embedded steel bars are connected to the composite mesh, and a base layer space is formed between the composite mesh, the floating platform plate, and the facade;

[0007] Ecologically improved base soil filled in the base space, the ecologically improved base soil comprising modified glutinous rice-based slurry soil, slow-release fertilizer and on-site slag soil;

[0008] The seed surface soil layer is laid on the outside of the composite mesh, and the seed surface soil layer includes modified glutinous rice-based slurry, slow-release fertilizer, organic fertilizer, straw, topsoil and seeds.

[0009] Furthermore, the seeds are Ophiopogon japonicus, Cynodon dactylon or Pteris crenata.

[0010] Furthermore, the amount of the seeds is 30 g / m 2 .

[0011] Furthermore, the composite mesh includes a steel mesh and a wire mesh stacked together.

[0012] Furthermore, the outer side of the composite mesh is connected to a reinforcing bar, and one end of the embedded bar away from the outer facade passes through the composite mesh and is connected to the reinforcing bar.

[0013] Furthermore, one end of the embedded reinforcement is bent to form an extension portion, a supporting mesh is provided on the side of the reinforcement bar away from the composite mesh, the extension portion is connected to the supporting mesh, and the supporting mesh is embedded in the seed surface soil layer.

[0014] Furthermore, the slow-release fertilizer is attapulgite slow-release fertilizer.

[0015] The present invention provides a construction method for a retaining concrete facade greening planting structure, comprising the following steps:

[0016] Installing multiple floating decks on the outer facade of the retaining concrete, wherein the multiple floating decks are spaced apart in the vertical direction;

[0017] Installing embedded reinforcement bars on the exterior facade;

[0018] A composite mesh is installed on the cantilevered section of the floating platform plate, the upper portion of the composite mesh is arranged obliquely upward toward the facade, the slope ratio of the composite mesh is less than 1:0.25, and the embedded steel bars are connected to the composite mesh, so that a base layer space is formed between the composite mesh, the floating platform plate, and the facade;

[0019] Filling the base space with ecologically improved base soil;

[0020] A seed surface soil layer is laid on the outer side of the composite mesh.

[0021] The beneficial effect of the present invention is that the retaining concrete facade greening planting structure and its construction method of the present invention construct a vegetation layer with the vertical retaining concrete facade, adopt special structural measures to strengthen the vegetation layer's ability to resist rainwater erosion, achieve vegetation coverage of vertical walls, and carry out ecological restoration of the "white pollution zone". Among them, the reliable consolidation of the ecologically reconstructed vegetation layer and the retaining concrete is ensured by setting anchor bars, and then the slope ratio is reduced by adding floating platforms (reducing the slope ratio to below 1:0.25), while achieving effective support of the vegetation layer on the steep facade. Finally, composite meshes, reinforcements and other skeleton structures are set to achieve lateral stability of ecological fixation, and ecologically improved slag is used as the base layer of the vegetation layer to ensure the anti-erosion ability of the vegetation layer, and modified glutinous rice-based slurry mixed with grass seeds is used as the vegetation layer to ensure that the seeds are not washed away by rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 This is a structural schematic diagram of a retaining concrete facade greening planting structure according to an embodiment of the present invention.

[0024] Figure 2 for Figure 1 Cross-sectional view at AA in.

[0025] Figure 3 for Figure 2 A local enlarged schematic diagram of point B in FIG.

[0026] Figure 4 Schematic diagram of the structure of the connection node between the floating platform plate and the retaining concrete according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic structural diagram of the connection node between the extension portion of the planted bar and the reinforcement bar according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Reference Figures 1 to 5 As shown, the present invention provides a facade greening planting structure for retaining concrete, comprising: a floating platform 1, a composite mesh 2, an ecologically improved base soil 3, and a seed surface soil layer 4.

[0031] There are multiple floating decks 1. The multiple floating decks 1 are spaced apart in the vertical direction. Each floating deck 1 has a fixed side and a cantilevered side. The fixed side of the floating deck 1 is installed on the facade of the retaining concrete 5.

[0032] The floating platform slab is a cast-in-place concrete slab. The spacing between the floating platform slabs is less than 2.5m and the thickness is 0.1m. Figure 4 As shown, the floating platform is anchored by planted steel bars. The floating platform is arranged in a horizontal state. In this embodiment, the slope of the outer facade of the retaining concrete is small and is almost perpendicular to the horizontal plane.

[0033] The composite mesh 2 is tilted. The lower portion of the composite mesh 2 is mounted on the cantilevered section of the floating deck 1. The upper portion of the composite mesh 2 is tilted upward toward the exterior facade. The slope ratio of the composite mesh 2 is less than 1:0.25. Multiple anchor bars 51 are installed on the exterior facade. The anchor bars 51 are connected to the composite mesh 2. A base layer is formed between the composite mesh 2, the floating deck 1, and the exterior facade.

[0034] The ecologically improved base soil 3 comprises modified glutinous rice-based slurry, slow-release fertilizer and on-site slag soil. The ecologically improved base soil 3 is filled in the base space.

[0035] The seed surface soil layer 4 comprises modified glutinous rice-based slurry, slow-release fertilizer, organic fertilizer, straw, topsoil and seeds. The seed surface soil layer 4 is laid on the outside of the composite mesh 2.

[0036] See Figure 3 and Figure 5 As shown, one end of the planting bar 51 is bent to form an extension portion 511. A support mesh 31 is provided on the side of the reinforcing bar 21 away from the composite mesh 2. The extension portion 511 is connected to the support mesh 31. The support mesh 31 is embedded in the seed surface soil layer 4.

[0037] As a preferred embodiment, the composite mesh 2 comprises a steel mesh and a wire mesh stacked together, wherein the steel mesh is a plastic-coated steel mesh and the wire mesh is a galvanized wire mesh.

[0038] In this embodiment, the mesh of the steel mesh is larger than that of the wire mesh. The composite mesh is stressed by the steel mesh, and the wire mesh is used to prevent the ecologically improved base soil in the base space from falling off.

[0039] The outer side of the composite mesh 2 is connected to a reinforcement bar 21. One end of the planting bar 51 away from the facade passes through the composite mesh 2 and is connected to the reinforcement bar 21.

[0040] In this embodiment, the seeds in the seed surface soil layer 4 are ophiopogon, bermudagrass or hairy fern. The amount of seeds used is 30g / m 2 .

[0041] As a preferred embodiment, the slow-release fertilizer is attapulgite slow-release fertilizer. The slow-release fertilizer in the ecologically improved base soil 3 and the seed surface soil layer 4 is attapulgite slow-release fertilizer.

[0042] The present invention provides a construction method for a retaining concrete facade greening planting structure, comprising the following steps:

[0043] S1: Install multiple floating decks 1 on the outer facade of the retaining concrete 5, and the multiple floating decks 1 are arranged at intervals along the vertical direction.

[0044] During the construction of the floating platform, the interface between the new and old concrete at the floating platform layout position needs to be roughened, and the interface treatment agent should be applied before pouring.

[0045] The vertical reinforcement of the floating platform is anchor steel bar, connected with the retaining concrete, and adopts the following method: the vertical spacing of the floating platform is no more than 2.5 meters, the width is 0.6 meters, the thickness is 0.1 meters, and the cast-in-place C25 concrete is adopted.

[0046] To prevent the impact of back-slope fissure water on the slope surface, the original drainage holes in the retaining concrete were extended to 200mm outside the vegetation layer slope. The construction sequence of the drainage holes is as follows: clean the original drainage holes of debris, make the joints neat and clean, and then extend the pipe to connect.

[0047] S2: Install anchor bars 51 on the facade.

[0048] S3: A composite mesh 2 is installed on the cantilevered section of the floating platform slab 1. The upper part of the composite mesh 2 is arranged obliquely upward toward the facade. The slope ratio of the composite mesh 2 is less than 1:0.25. The embedded steel bars 51 are connected to the composite mesh 2 to form a base space between the composite mesh 2, the floating platform slab 1, and the facade.

[0049] The composite mesh is constructed from plastic-coated steel mesh and galvanized wire mesh. The plastic-coated steel mesh and galvanized wire mesh are secured with 16# tie wire and rebar. The overlap width of adjacent composite mesh panels is 100mm.

[0050] The reinforcement bars are steel bars, arranged in a rectangular shape, and their spacing is consistent with the spacing of the embedded bars (anchors).

[0051] The reinforcement bars are arranged on the outside of the composite mesh and are welded and fixed to the bent extension part of the planting (anchor) steel bars by overlapping for 10d.

[0052] For slope support and ecological restoration, horizontal steel bars are installed at the top and bottom of the slope to secure the supporting mesh (chain link fence). These horizontal steel bars are welded to planted rebar (anchors). Additional reinforcement bars are welded to anchors (planted rebar) at locations with sudden angle changes to secure the chain link fence. The reinforcement bars are laid to follow the slope of the chain link fence and are secured to the anchors (planted rebar).

[0053] S4: Fill the base space with ecologically improved base soil 3.

[0054] S5: The seed surface soil layer 4 is laid on the outer side of the composite mesh 2.

[0055] In this embodiment, the ecologically improved base soil 3 and the seed surface soil layer 4 constitute a vegetation layer. The vegetation layer is reinforced and stressed by retaining concrete reinforcement, composite mesh, reinforcement bars, and support mesh.

[0056] The ecologically improved base soil 3 and the seed surface soil layer 4 are mixed on site according to a predetermined ratio.

[0057] The entire vegetation layer is constructed in two steps. The first step is to spray the base soil 3 to improve the ecology, and reserve a 20mm surface soil layer 4 for spraying seeds. The spraying elevation is set to 2m each time, and the seeds are sprayed layer by layer from top to bottom. The lower spraying construction can be carried out only after the previous spraying layer is in a solidified state.

[0058] In order to ensure the survival rate and prevent plants from drought and water shortage, sprinkler irrigation is mainly used for watering and fertilizing at the turn of spring and summer, the peak growing season and autumn. The irrigation water is taken by sprinkler trucks for spraying, and topdressing is applied in time according to the growth of the plants.

[0059] The retaining concrete facade greening planting structure and construction method of the present invention construct a vegetation layer on the facade of the vertical retaining concrete, adopt special structural measures to strengthen the vegetation layer's ability to resist rainwater erosion, achieve vegetation coverage of vertical walls, and carry out ecological restoration of the "white pollution zone". Among them, the reliable consolidation of the ecologically reconstructed vegetation layer and the retaining concrete is ensured by setting anchor bars, and then the slope ratio is reduced by adding floating platforms (reducing the slope ratio to below 1:0.25), while achieving effective support of the vegetation layer on the steep facade. Finally, a composite mesh, reinforcement and other skeleton structures are set to achieve lateral stability of ecological fixation, and ecologically improved slag is used as the base layer of the vegetation layer to ensure the anti-erosion ability of the vegetation layer, and a modified glutinous rice-based slurry mixed with grass seeds is used as the vegetation layer to ensure that the seeds are washed away by rainwater.

[0060] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A retaining concrete facade greening planting structure, characterized in that: include: Multiple floating decks, each having a fixed side and a cantilevered side, the fixed side of the floating deck being mounted on the outer facade of the retaining concrete, and the multiple floating decks being spaced apart in the vertical direction; A composite mesh, wherein the lower portion of the composite mesh is installed on the cantilevered section of the floating platform plate, the upper portion of the composite mesh is arranged obliquely upward toward the facade, the slope ratio of the composite mesh is less than 1:0.25, a plurality of embedded steel bars are installed on the facade, the embedded steel bars are connected to the composite mesh, and a base layer space is formed between the composite mesh, the floating platform plate, and the facade; Ecologically improved base soil filled in the base space, the ecologically improved base soil comprising modified glutinous rice-based slurry soil, slow-release fertilizer and on-site slag soil; The seed surface soil layer is laid on the outside of the composite mesh, and the seed surface soil layer includes modified glutinous rice-based slurry, slow-release fertilizer, organic fertilizer, straw, topsoil and seeds.

2. The retaining concrete facade greening planting structure according to claim 1 is characterized in that: The seeds are Ophiopogon japonicus, Cynodon dactylon or Pteris dactylon.

3. The retaining concrete facade greening planting structure according to claim 2 is characterized in that: The amount of the seeds is 30g / m 2 .

4. The retaining concrete facade greening planting structure according to claim 1, characterized in that: The composite mesh comprises a steel mesh and a wire mesh stacked together.

5. The retaining concrete facade greening planting structure according to claim 1, characterized in that: The outer side of the composite mesh is connected with a reinforcing bar, and one end of the embedded bar away from the outer facade passes through the composite mesh and is connected to the reinforcing bar.

6. The retaining concrete facade greening planting structure according to claim 5, characterized in that: One end of the planting bar is bent to form an extension portion, a supporting mesh is provided on the side of the reinforcing bar away from the composite mesh, the extension portion is connected to the supporting mesh, and the supporting mesh is embedded in the seed surface soil layer.

7. The retaining concrete facade greening planting structure according to claim 1, characterized in that: The slow-release fertilizer is attapulgite slow-release fertilizer.

8. A construction method for a retaining concrete facade greening planting structure according to any one of claims 1 to 7, characterized in that: The following steps are involved: Installing multiple floating decks on the outer facade of the retaining concrete, wherein the multiple floating decks are spaced apart in the vertical direction; Installing rebar on the facade; A composite mesh is installed on the cantilevered section of the floating platform plate, the upper portion of the composite mesh is arranged obliquely upward toward the facade, the slope ratio of the composite mesh is less than 1:0.25, and the embedded steel bars are connected to the composite mesh, so that a base layer space is formed between the composite mesh, the floating platform plate, and the facade; Filling the base space with ecologically improved base soil; A seed surface soil layer is laid on the outer side of the composite mesh.

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