CN215715400U - Cutting ultrahigh slope ecological protection structure - Google Patents

Abstract

The utility model discloses a cutting ultrahigh slope ecological protection structure, which is fixedly arranged from a lower layer to a top layer in sequence: the first spraying and mixing plant growing layer is arranged in the cutting ultrahigh slope; the spraying and mixing planting covering beam frame structure layer is provided with a beam frame structure layer and a second spraying and mixing planting layer, and the second spraying and mixing planting layer is covered with the beam frame structure layer; the three-dimensional net grass planting layer with the arched framework is provided with the arched framework layer and the three-dimensional net grass planting layer, the three-dimensional net grass planting layer covers the arched framework of the arched framework layer, the original ecological environment can be kept while the ultrahigh slope is reinforced, and the risk of geological disasters of the ultrahigh slope is reduced.

Description

Cutting ultrahigh slope ecological protection structure

Technical Field

The utility model relates to the technical field of civil construction, in particular to a cutting ultrahigh slope ecological protection structure.

Background

The geological conditions in China are complex, the situation of a high slope is inevitably met in the process of constructing highway engineering, the height of the slope is often more than 30m, the scale of the modified nature is overlarge, and the high slope is deformed after being excavated and disasters are caused frequently due to improper design of a construction method. Therefore, the construction investment is increased, the construction period is delayed, and hidden troubles are brought to the operation safety. In order to better ensure the smooth construction of highway engineering and enhance the quality of highway engineering construction, it is very important to research the slope protection construction of ultra-high (the height of the slope is 85m) excavation roadbed under complex geology.

In the prior art, the ultrahigh excavation side slope protection construction technology under complex geology comprises the following steps: (1) the framework protection slope, the roadbed side slope uses a frame type structure formed by concrete or grouted rubbles, and grass is planted in the middle of the frame for protection so as to prevent the roadbed side slope from slipping and collapsing. (2) The three-dimensional net grass planting technology is a new technology for constructing a protection system with self growth capability on a slope surface by utilizing active plants and combining engineering materials such as geosynthetic materials and the like and reinforcing a side slope through the growth of the plants. (3) Spraying and mixing plant growth, namely, after constructing a short anchor rod on a stable rock slope and paving and hanging a galvanized wire netting, spraying the mixed and uniformly mixed planting base material to the slope surface by adopting a special spraying machine, and growing and developing plants by depending on the base material to form a construction technology of plant slope protection. (4) The prestressed anchor cable (rod) frame beam is locked on the pile body by means of an anchorage device through tensioning prestress of the anchor cable, and reaction force generated by the anchor cable is transmitted to a broken soil body through the pile body, so that the broken soil body is stable under the action of external force. However, the existing ultra-high excavation slope protection construction technology cannot meet the requirements of environmental protection and reinforcement of the slope surface of the roadbed slope at the same time.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a cutting ultrahigh slope ecological protection structure, which can be used for reinforcing the ultrahigh slope and simultaneously maintaining the original ecological environment, thereby reducing the risk of geological disasters of the ultrahigh slope.

According to the cutting ultrahigh slope ecological protection structure provided by the embodiment of the utility model, the cutting ultrahigh slope ecological protection structure comprises a lower layer and a top layer which are fixedly arranged in sequence: the first spraying and mixing plant growing layer is arranged in the cutting ultrahigh slope; the spraying and mixing planting covering beam frame structure layer is provided with a beam frame structure layer and a second spraying and mixing planting layer, and the second spraying and mixing planting layer is covered with the beam frame structure layer; the arched framework three-dimensional net grass planting layer is provided with an arched framework layer and a three-dimensional net grass planting layer, and the three-dimensional net grass planting layer is covered in an arch frame of the arched framework layer.

According to the cutting ultrahigh slope ecological protection structure provided by the embodiment of the first aspect of the utility model, at least the following beneficial effects are achieved: cutting super high slope ecological protection structure can satisfy domatic protection of road bed side slope and reinforced requirement, guarantee that the road bed can not destroy because of rainwash and climate change, and compromise the coordination of road landscape and environment, it can improve the construction efficiency to lay the roof beam structure layer on the second spouts the mixed planting living layer, reduce the risk that geological disasters appears in the high slope, guarantee site operation safety, cutting super high slope ecological protection structure middle berth is equipped with first spout the mixed planting living layer, second spouts mixed planting living layer and third and spouts the mixed planting living layer, can realize in the construction furthest maintains original topography as far as possible, keep original ecological environment.

According to some embodiments of the utility model, the beam frame structure layer comprises one anchor cable frame beam layer and two anchor rod lattice beam layers, one anchor cable frame beam layer is arranged between two adjacent anchor rod lattice beam layers, and the anchor cable frame beam layer and the anchor rod lattice beam layer are both arranged on the second spray-mixed planting layer.

According to some embodiments of the utility model, a third spray-mixed vegetation layer is further fixedly arranged between the spray-mixed vegetation covering beam frame structure layer and the arched framework three-dimensional net vegetation layer.

According to some embodiments of the present invention, the cutting ultrahigh slope has eight grades, the first grade slope to the eighth grade slope are sequentially and fixedly arranged from bottom to top, the first and second grades are respectively and fixedly provided with the first spray-mixed vegetation layer, the third grade slope is fixedly provided with the anchor rod lattice beam layer and the second spray-mixed vegetation layer, the fourth grade slope is fixedly provided with the anchor cable frame beam layer and the second spray-mixed vegetation layer, the fifth grade slope is fixedly provided with the anchor rod lattice beam layer and the second spray-mixed vegetation layer, the sixth grade slope is fixedly provided with the third spray-mixed vegetation layer, and the seventh and eighth grades are respectively and fixedly provided with the arch skeleton layer and the three-dimensional net vegetation layer.

According to some embodiments of the utility model, the top surface of the arch frame of the arched framework layer is flush with the grass planting surface of the three-dimensional net grass planting layer, and the three-dimensional net grass planting layer is fixed on the slope surface by using U-shaped steel nails.

According to some embodiments of the utility model, the anchor cable frame beams of the anchor cable frame beam layer and the anchor rod lattice beams of the anchor rod lattice beam layer need to be completely embedded into the side slope, and the anchor heads of the anchor rod lattice beams and the anchor cable frame beams are exposed out of the side slope.

According to some embodiments of the utility model, a platform cut-off trench is arranged on the platform of each stage of slope, a cut-off trench is arranged outside 5.0m behind the cut of the cutting super-high slope, and the third spraying and mixing vegetation layer is paved outside the platform cut-off trench and the cut-off trench.

According to some embodiments of the utility model, the third spraying and mixing vegetation layer is laid from the position 2m inside the slope surface of the cutting ultrahigh slope to the edge of the inner side of the cutting intercepting ditch.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic view of a local structure of a cut ultrahigh slope ecological protection structure according to an embodiment of the present invention;

FIG. 2 is a sectional view of the cut ultra-high slope ecological protection structure according to the embodiment of the present invention;

FIG. 3 is a schematic structural view of an anchor cable frame beam layer in the cutting ultrahigh slope ecological protection structure in the embodiment of the utility model;

FIG. 4 is a cross-sectional view of I-I of FIG. 3;

FIG. 5 is a schematic structural view of an anchor rod lattice beam layer in the cutting ultrahigh slope ecological protection structure in the embodiment of the utility model;

FIG. 6 is a cross-sectional view II-II of FIG. 5;

FIG. 7 is a schematic structural view of an arched framework three-dimensional net grass planting layer in the cutting ultrahigh slope ecological protection structure in the embodiment of the utility model.

Reference numerals: a first spray-mixed vegetation layer 10;

spraying, mixing, planting and covering the beam frame structure layer 20; a beam frame structure layer 21; anchor cable frame beam layer 211; anchor grid layer 212; a second spray-mixed vegetation layer 22;

an arched skeleton three-dimensional net grass planting layer 30; an arch skeleton layer 31; a three-dimensional net grass planting layer 32;

a third spray-mixed vegetation layer 40;

the moat intercepting drain 50.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

A cutting ultra-high slope ecological protection structure according to an embodiment of the utility model is described with reference to fig. 1 to 7.

Referring to fig. 1, 2 and 7, in some embodiments, the cutting ultra-high slope ecological protection structure includes a first spray mixed vegetation layer 10, a spray mixed vegetation covering beam frame structure layer 20 and an arch skeleton three-dimensional net grass planting layer 30, which are fixedly arranged in sequence from a lower layer to a top layer. The first spray-mixed planting layer 10 is arranged in the cutting super-high slope, the first spray-mixed planting layer 10 is positioned at the lowest layer of the cutting super-high slope, the spray-mixed planting covering beam frame structure layer 20 is provided with a beam frame structure layer 21 and a second spray-mixed planting layer 22, the second spray-mixed planting layer 22 is covered with a beam frame structure layer 21, it can be understood that the beam frame structure layer 21 is embedded in the second spray-mixed planting layer 22, the arch-shaped framework three-dimensional net planting layer 30 is provided with an arch-shaped framework layer 31 and a three-dimensional net planting layer 32, the arch-shaped framework layer 31 is formed by splicing a plurality of arch frames, the arch frames are covered with the three-dimensional net planting layer 32, the cutting super-high slope ecological protection structure can meet the protection and reinforcement requirements of the slope surface of the roadbed, the roadbed can not be damaged due to rain wash and climate change, the coordination of road landscape and environment can be realized, the beam frame structure layer 21 is laid on the second spray-mixed planting layer 22, and the risk of geological disasters of the high slope can be reduced, the safety of on-site construction is guaranteed, the first spray mixed planting living layer 10 and the second spray mixed planting living layer 22 are paved in the cut ultrahigh slope ecological protection structure, the original landform and landform can be maintained to the greatest extent in construction, and the original ecological environment is kept.

It should be noted that, referring to fig. 1 to 6, in some embodiments, the beam structure layer 21 includes one anchor cable frame beam layer 211 and two anchor rod lattice beam layers 212, one anchor cable frame beam layer 211 is disposed between two adjacent anchor rod lattice beam layers 212, and both the anchor cable frame beam layer 211 and the anchor rod lattice beam layer 212 are disposed on the second spray-mixed vegetation layer 22 in a covering manner. When the anchor cable frame beam layer 211 is provided with one layer, the anchor rod lattice beam layer 212 is provided with two layers, and the anchor cable frame beam layer 211 is positioned between the two anchor rod lattice beam layers 212; when anchor rope frame roof beam layer 211 is provided with two-layerly, stock check roof beam layer 212 is provided with the three-layer, and two-layer anchor rope frame roof beam layer 211 is located between adjacent two-layer stock check roof beam layer 212, needs to ensure in the roof beam structure layer 21 that the lower most layer and top most layer are stock check roof beam layer 212, and then reaches the purpose of firm moat superelevation slope.

Further, referring to fig. 1 and 2, in some embodiments, a third spray mixed vegetation layer 40 is further fixed between the spray mixed vegetation covering beam structure layer 20 and the arched skeleton three-dimensional net vegetation layer 30, and it can be understood that the third spray mixed vegetation layer 40 can further increase the greening area between the spray mixed vegetation covering beam structure layer 20 and the arched skeleton three-dimensional net vegetation layer 30 while ensuring the slope stability.

Further, referring to fig. 1 and 2, in some embodiments, the cut ultrahigh slope has eight grades, the first grade slope to the eighth grade slope are sequentially and fixedly arranged from the bottom layer to the top layer, the first grade slope and the second grade slope are respectively and fixedly provided with a first spray-mixed planting layer 10, the third grade slope is fixedly provided with an anchor rod lattice beam layer 212 and a second spray-mixed planting layer 22, the fourth grade slope is fixedly provided with an anchor rod frame beam layer 211 and a second spray-mixed planting layer 22, the fifth grade slope is fixedly provided with an anchor rod lattice beam layer 212 and a second spray-mixed planting layer 22, the sixth grade slope is fixedly provided with a third spray-mixed planting layer 40, and the seventh grade slope and the eighth grade slope are respectively and fixedly provided with an arch framework layer 31 and a three-dimensional net planting layer 32, so that the original topographic features are maintained to the greatest extent possible in construction, and the original ecological environment is maintained.

Referring to fig. 7, in some embodiments, the arch top surface of the arch skeleton layer 31 is flush with the grass planting surface of the three-dimensional net grass planting layer 32, it can be understood that the arch of the arch skeleton is built by M7.5 stone masonry, the arch is exposed out of the side slope by a certain height, the height of the grass planting surface is flush with the arch top surface, the overall aesthetic property of the cutting ultra-high side slope can be improved, and the three-dimensional grass planting layer is fixed on the slope surface by U-shaped steel nails, so that the three-dimensional grass planting layer can be more firmly fixed on the cutting ultra-high side slope.

Referring to fig. 3 to 6, in some embodiments, the anchor cable frame beams of the anchor cable frame beam layer 211 and the anchor rod lattice beams of the anchor rod lattice beam layer 212 are disposed on the cutting ultra-high slope in a fully embedded manner, and the anchor heads of the anchor rod lattice beams and the anchor cable frame beams are disposed on the cutting ultra-high slope in a manner of exposing slope surfaces, so that the anchor cable frame beam layer 211 and the anchor rod lattice beam layer 212 can be more firmly fixed on the cutting ultra-high slope.

Referring to fig. 2, 4 and 6, in some embodiments, a platform intercepting drain (not shown) is disposed on the platform of each stage of slope, a cutting intercepting drain 50 is disposed 5.0m behind the cutting of the cutting ultrahigh slope, and third spraying and mixing vegetation layers 40 are laid outside the edges of the platform intercepting drain and the cutting intercepting drain 50, so that the greening area on the cutting ultrahigh slope can be further increased.

It should be noted that, the platform of each grade side slope is provided with a rapid trough (not shown in the figure) and a drainage trough (not shown in the figure), the rapid trough is often built on both sides of the slope and used for draining water and achieving the purpose of slowing down the water flow speed, so as to protect the highway subgrade greatly, the drainage trough can guide the water collected by the nearby low-lying parts on the cutting side slope to a ditch outside the subgrade, and the platform cut ditch, the cutting cut ditch 50, the rapid trough and the drainage trough achieve the purpose of preventing excessive rainwater from washing the cutting side slope.

Further, referring to fig. 1, fig. 2, fig. 4 and fig. 6, in some embodiments, a third spraying and mixing planting layer 40 is laid from the 2m inside slope surface of the cutting ultra-high slope to the inner side edge of the cutting cut ditch 50, it can be understood that the 2m inside slope surface of the cutting ultra-high slope is the boundary between the slope surface of the cutting ultra-high slope and the surface of the mountain, and the third spraying and mixing planting layer 40 is laid towards the 2m inside slope surface of the cutting ultra-high slope, so that the original landform and the original ecological environment can be maintained to the greatest extent in construction, and the original ecological environment can be maintained.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims (8)

1. The utility model provides a cutting superelevation side slope ecological protection structure which characterized in that includes and sets firmly in proper order by lower floor to top layer:

the first spraying and mixing plant growth layer (10), wherein the first spraying and mixing plant growth layer (10) is arranged in the cutting ultrahigh slope;

the spraying and mixing planting covering beam frame structure layer (20), wherein the spraying and mixing planting covering beam frame structure layer (20) is provided with a beam frame structure layer (21) and a second spraying and mixing planting layer (22), and the second spraying and mixing planting layer (22) is covered with the beam frame structure layer (21); and

the grass planting layer is characterized by comprising an arched framework three-dimensional net grass planting layer (30), wherein the arched framework three-dimensional net grass planting layer (30) is provided with an arched framework layer (31) and a three-dimensional net grass planting layer (32), and the three-dimensional net grass planting layer (32) is covered in an arch frame of the arched framework layer (31).

2. The cutting ultrahigh slope ecological protection structure according to claim 1, wherein the beam frame structure layer (21) comprises one anchor cable frame beam layer (211) and two anchor rod lattice beam layers (212), one anchor cable frame beam layer (211) is arranged between two adjacent anchor rod lattice beam layers (212), and both the anchor cable frame beam layer (211) and the anchor rod lattice beam layer (212) are arranged on the second spraying-mixing vegetation layer (22).

3. The cutting ultrahigh slope ecological protection structure according to claim 2, wherein a third spray-mixed vegetation layer (40) is further fixedly arranged between the spray-mixed vegetation covering beam frame structure layer (20) and the arched skeleton three-dimensional net vegetation layer (30).

4. The cutting ultrahigh slope ecological protection structure according to claim 3, wherein the cutting ultrahigh slope has eight grades, the first grade slope to the eighth grade slope are sequentially fixed from a bottom layer to a top layer, the first spray-mixed vegetation layer (10) is respectively fixed on the first grade slope and the second grade slope, the anchor rod lattice beam layer (212) and the second spray-mixed vegetation layer (22) are fixed on the third grade slope, the anchor rod lattice beam layer (211) and the second spray-mixed vegetation layer (22) are fixed on the fourth grade slope, the anchor rod lattice beam layer (212) and the second spray-mixed vegetation layer (22) are fixed on the fifth grade slope, the third spray-mixed vegetation layer (40) is fixed on the sixth grade slope, and the arch skeleton layer (31) and the three-dimensional net vegetation layer (32) are respectively fixed on the seventh grade slope and the eighth grade slope.

5. The ecological protection structure of cut ultrahigh slope according to claim 1, characterized in that the top surface of the arch frame of the arched framework layer (31) is flush with the grass planting surface of the three-dimensional net grass planting layer (32), and the three-dimensional net grass planting layer (32) is fixed on the slope surface by adopting U-shaped steel nails.

6. The cutting ultrahigh slope ecological protection structure according to claim 2, wherein anchor cable frame beams of the anchor cable frame beam layer (211) and anchor rod lattice beams of the anchor rod lattice beam layer (212) need to be completely embedded into the slope, and anchor heads of the anchor rod lattice beams and the anchor cable frame beams are exposed out of the slope.

7. The ecological protection structure of ultrahigh cut slope according to claim 4, wherein a platform cut trench is arranged on the platform of each grade of slope, a cut trench (50) is arranged outside the 5.0m behind the cut of the ultrahigh cut slope, and the third spraying and mixing vegetation layer (40) is laid outside the platform cut trench and the cut trench (50).

8. The ecological protection structure of a cutting ultrahigh slope according to claim 7, wherein the third spraying and mixing vegetation layer (40) is laid from the position 2m inside the slope surface of the cutting ultrahigh slope to the edge of the inner side of the cutting intercepting ditch (50).

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