Levee inner side slope three-dimensional soil fixation net pad and coconut shred blanket combined protection structure

Abstract

The utility model belongs to the technical field of embankment engineering construction, and particularly relates to a three-dimensional soil fixation net pad and coconut shred blanket combined protection structure for an inner slope of an embankment. A levee inner side slope three-dimensional soil fixation net pad and coconut shred blanket combined protection structure comprises a road surface and a side slope surface which are arranged on a levee base, a nutrient soil layer is laid on the side slope surface, and a protection layer is laid on the nutrient soil layer; the protective layer is composed of a coconut shred blanket and a three-dimensional soil fixing net pad, the coconut shred blanket is laid on the surface of the nutrient soil layer and installed on the side slope face through a plurality of U-shaped nails, and the three-dimensional soil fixing net pad is laid on the surface of the coconut shred blanket and installed on the side slope face through a plurality of U-shaped nails as well. The dike inner side slope three-dimensional soil fixation net pad and coconut shred blanket combined protection structure has the advantages that operation is convenient, the construction period can be shortened, manpower and equipment cost can be reduced, meanwhile, landform damage can be reduced, and the environment recovery difficulty can be lowered.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the embankment engineering construction technical field especially relates to a three -dimensional soil fixing net pad and coconut fiber blanket combined protection structure in embankment inner slope. BACKGROUND

[0002] In embankment engineering construction, the stability of the slope is the primary task, and the stability and ecological protection of the inner slope of the embankment are the key problems, the traditional protection measures, such as gabion stone cage net slope and concrete slope, although can provide certain stability in short term, but these methods have the shortcomings such as complex construction, high cost, great influence on natural environment, although gabion stone cage net has good water permeability and durability, but its material cost is high and installation is complicated, and although concrete protection slope has high strength and strong scouring resistance, but the damage to the original landform is great in the construction process, and the ecological recovery difficulty is high, these problems not only limit the sustainable development of the project, but also are contrary to the goal of pursuing ecological civilization.

[0003] Therefore, it is necessary to provide a new three-dimensional soil fixing net pad and coconut fiber blanket combined protection structure for the inner slope of the embankment to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model solves the technical problem to provide a three-dimensional soil fixing net pad and coconut fiber blanket combined protection structure for the inner slope of the embankment, which is convenient to operate, can shorten the construction period, reduce the labor and equipment cost, and also can reduce the damage to the landform, reduce the difficulty of environmental recovery.

[0005] To solve the above technical problems, the technical scheme provided by the utility model is as follows:

[0006] A three-dimensional soil fixing net pad and coconut fiber blanket combined protection structure for the inner slope of the embankment, comprising a highway surface and a slope surface arranged on an embankment base, a nutrient soil layer is arranged on the slope surface, and a protection layer is arranged on the nutrient soil layer.

[0007] The protection layer is composed of a coconut fiber blanket and a three-dimensional soil fixing net pad, the coconut fiber blanket is arranged on the surface of the nutrient soil layer, the coconut fiber blanket is installed on the slope surface through a plurality of U-shaped nails, the three-dimensional soil fixing net pad is arranged on the surface of the coconut fiber blanket, and the three-dimensional soil fixing net pad is also installed on the slope surface through a plurality of U-shaped nails.

[0008] As a further scheme of the utility model, the coconut fiber blanket is made of natural coconut fiber, and has good degradability and environmental protection.

[0009] As a further scheme of the utility model, the three-dimensional soil fixing net pad is a multi-layer plastic three-dimensional soil fixing net pad made of thermoplastic resin.

[0010] As a further scheme of the utility model, the thickness of the nutrient soil layer is 20-30cm, the nutrient soil layer is used for improving the compactness of soil and the stability of the slope, and the nutrient soil layer selects loam rich in organic matter and good in air permeability.

[0011] As a further scheme of the utility model, the grass seed layer is arranged between the nutrient soil layer and the protection layer, a fine soil layer is arranged between the grass seed layer and the protection layer, and a water intercepting ditch is arranged on one side of the embankment base.

[0012] As a further scheme of the utility model, the height of the U-shaped nail 6 is 20-40cm, the spacing between two U-shaped nails is 100cm, the spacing between the two nails on the U-shaped nail is 100-150cm, and the U-shaped nail is ф6mm.

[0013] Compared with the related art, the embankment inner slope three-dimensional soil fixing net mat and coconut coir mat combined protection structure has the following beneficial effects:

[0014] The utility model has the advantages of convenient operation, no need of a large number of professional equipment, easy to master the laying and fixing of materials, and application to various complex terrain slope protection projects, and can significantly shorten the construction period, reduce the labor and equipment cost, and compared with the traditional protection method, the material cost of the three-dimensional soil fixing net mat and coconut coir mat is lower, and the utility model is especially suitable for large-area popularization and use, in addition, the degradable characteristics of the coconut coir mat reduce the post-maintenance requirement, thereby further reducing the total cost of the project. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings accompanying the specification provide further understanding of the application, the illustrative embodiments thereof, and constitute a part of the application integrally with the specification. Among them:

[0016] Figure 1 The structure diagram of the utility model Figure One ;

[0017] Figure 2 The structure diagram of the utility model Figure Two ;

[0018] Figure 3 The assembly diagram of the embankment base, the slope surface, the nutrient soil layer, the protection layer, the grass seed layer and the fine soil layer in the utility model;

[0019] Figure 4 The structure diagram of the three-dimensional soil fixing net mat in the utility model.

[0020] In the figure: 1, embankment base; 2, highway surface; 3, slope surface; 4, nutrient soil layer; 5, protective layer; 51, coconut fiber blanket; 52, three-dimensional soil stabilization net pad; 6, U-shaped nail; 7, grass seed layer; 8, fine soil layer; 9, water interception ditch. DETAILED DESCRIPTION

[0021] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application rather than limitation of the present application. In fact, those skilled in the art will appreciate that modifications and variations can be made in the present application without departing from the scope or spirit of the present application. For example, features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art should belong to the scope of protection of the present application.

[0022] Please refer to Figures 1 to 4 An embankment inner slope three-dimensional soil stabilization net pad and coconut fiber blanket combined protection structure, comprising a highway surface 2 and a slope surface 3 arranged on an embankment base 1, a nutrient soil layer 4 arranged on the slope surface 3, and a protective layer 5 arranged on the nutrient soil layer 4.

[0023] The protective layer 5 is composed of a coconut fiber blanket 51 and a three-dimensional soil stabilization net pad 52. The coconut fiber blanket 51 is arranged on the surface of the nutrient soil layer 4, and the coconut fiber blanket 51 is installed on the slope surface 3 through a plurality of U-shaped nails 6. The three-dimensional soil stabilization net pad 52 is arranged on the surface of the coconut fiber blanket 51, and the three-dimensional soil stabilization net pad 52 is also installed on the slope surface 3 through a plurality of U-shaped nails 6.

[0024] The coconut fiber blanket 51 is made of natural coconut fiber. The coconut fiber blanket 51 has good degradability and environmental friendliness. The natural coconut fiber not only does not pollute the environment, but also can be naturally degraded into organic fertilizer, providing additional nutritional support for the growth of vegetation.

[0025] The three-dimensional soil stabilization net pad 52 is a multi-layer plastic three-dimensional soil stabilization net pad made of thermoplastic resin. The net pad has a three-dimensional structure similar to a loofah network, and has loose and flexible texture, which can provide 90% of space for soil, gravel and fine stones, promote the development of plant root system, and form a solid green protective layer.

[0026] The thickness of the nutrient soil layer 4 is 20-30 cm. The nutrient soil layer 4 is used to improve the compactness of the soil and the stability of the slope. The nutrient soil layer 4 is selected from loam soil rich in organic matter and good in air permeability.

[0027] A grass seed layer 7 is arranged between the nutrient soil layer 4 and the protective layer 5, a fine soil layer 8 is arranged between the grass seed layer 7 and the protective layer 5, and a water interception ditch 9 is arranged on one side of the embankment base 1.

[0028] The height of the U-shaped nail 6 is 20-40 cm, the distance between the two U-shaped nails 6 is 100 cm, the distance between the two nails on the U-shaped nail 6 is 100-150 cm, and the diameter of the U-shaped nail 6 is ф6 mm.

[0029] The slope surface 3 is graded and leveled to ensure the flatness and stability of the slope, especially at the junction of different geological layers, which needs to be treated to prevent landslides or soil erosion;

[0030] After the slope surface 3 is leveled, a 20-30 mm thick nutrient soil layer 4 is laid to improve the soil density and stability of the slope. The nutrient soil layer 4 is selected according to the actual geological conditions, and the loam rich in organic matter and good in air permeability is selected to facilitate the subsequent grass seed sowing and vegetation growth. At the same time, the surface soil should be fertilized before laying, and appropriate amount of organic fertilizer and compound fertilizer should be applied to improve soil fertility and promote the growth of vegetation roots. In addition, water retaining agent is added to the soil to enhance the water retaining capacity of the soil and reduce the damage to vegetation caused by drought;

[0031] After the nutrient soil layer 4 is laid, the grass seed layer 7 is sown in the 20-30 mm thick nutrient soil layer 4 to protect the seeds from the external environment and increase the germination rate of the seeds. During sowing, the sowing depth is adjusted according to the specific conditions of the soil to make the grass seeds in close contact with the surface soil, which is helpful for the development and growth of the roots. After sowing, the nutrient soil layer 4 should be gently compacted to ensure good contact between the seeds and the soil;

[0032] After the grass seed layer 7 is sown, a layer of fine soil layer 8 is covered on it, with a thickness of about 5-10 mm. The fine soil layer 8 helps to protect the grass seeds from wind erosion and bird pecking, and is also beneficial to maintaining soil moisture. After covering, the surface soil is gently compacted with a compaction tool to improve the contact between the grass seeds and the soil, thereby promoting uniform germination;

[0033] The coconut fiber mat 51 is laid flat on the fine soil layer 8 after it is arranged, ensuring uniform coverage and no wrinkles. It is laid from the top of the slope down to ensure that the coconut fiber mat 51 is tightly attached to the fine soil layer 8 and reduces wrinkles during laying. The joint of the coconut fiber mat 51 is treated with overlapping method, with a width of not less than 15 cm to ensure uniform coverage and prevent water and soil loss and displacement of the coconut fiber mat 51;

[0034] The U-shaped nail 6 is used to fix the coconut fiber mat 51 on the slope surface. The fixing points should be evenly distributed, especially at the edges and joints, to ensure that the coconut fiber mat 51 is tightly attached to the slope surface and avoids loosening or displacement;

[0035] Lay the three-dimensional soil stabilization net mat 52 on the fixed coconut fiber blanket 51, and ensure that the net mat is consistent with the slope direction of the slope surface during laying, and ensure that the net mat is in close contact with the coconut fiber blanket 51 and the soil surface to avoid tensioning the net mat;

[0036] After laying, immediately start watering and maintaining, and in high-temperature weather, according to the soil humidity and evaporation rate, carry out 2-3 times of watering per day to ensure that the soil is kept wet, and it is particularly important to keep the soil water content at 40%-50% during the initial stage of seed germination.

[0037] The combination of the three-dimensional soil stabilization net mat 52 and the coconut fiber blanket 51 has significant advantages in improving the stability of the slope, the three-dimensional soil stabilization net mat 52 forms a solid protective layer by closely combining with the soil body to prevent slope sliding and collapse, and the coconut fiber blanket 51 provides additional protection to the surface layer to reduce the erosion of water flow to the surface soil, and the U-shaped nails 6 can further improve the connection firmness between the slope, which is easy to operate and does not require a large number of professional equipment, and the laying and fixing of materials are easy to master, and is suitable for slope protection engineering of various complex terrains, can significantly shorten the construction period, reduce the labor and equipment cost, and compared with the traditional protection method, the material cost of the three-dimensional soil stabilization net mat 52 and the coconut fiber blanket 51 is lower, and is particularly suitable for large-area popularization and use, in addition, the degradable characteristics of the coconut fiber blanket 51 reduce the need for later maintenance, thereby further reducing the total cost of the project.

[0038] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the technical principle of the design, and under the premise that the above-mentioned utility model principle is understood by the person skilled in the art, the specific of the power mechanism, the power supply system and the control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;

[0039] The standard parts used therein can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art, and the structure and principle thereof are known by the person skilled in the art through technical manual or conventional experimental method.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations or direct or indirect application can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents, and the same is true for the patent protection scope of the utility model.

Claims

1. A levee inner slope three-dimensional soil-retaining mesh mat and coconut coir mat combined protection structure, characterized in that, The embankment base is provided with a road surface and a slope surface, the slope surface is provided with a nutrient soil layer, and the nutrient soil layer is provided with a protection layer; The protection layer is composed of a coconut fiber carpet and a three-dimensional soil-fixing net pad, the coconut fiber carpet is arranged on the surface of the nutrient soil layer, the coconut fiber carpet is arranged on the slope surface through a plurality of U-shaped nails, and the three-dimensional soil-fixing net pad is arranged on the surface of the coconut fiber carpet and is also arranged on the slope surface through a plurality of U-shaped nails.

2. The embankment inner slope three-dimensional soil stabilization mesh mat and coconut coir mat combined protection structure according to claim 1, characterized in that, The coconut fiber carpet is made of natural coconut fiber and has good degradability and environmental protection.

3. The embankment inner slope three-dimensional soil stabilization mesh mat and coconut coir mat combined protection structure according to claim 1, characterized in that, The three-dimensional soil-fixing net pad is a multi-layer plastic three-dimensional soil-fixing net pad made of thermoplastic resin.

4. The embankment inner slope three-dimensional soil stabilization mesh mat and coconut coir mat combined protection structure according to claim 1, characterized in that, The thickness of the nutrient soil layer is 20-30 cm, the nutrient soil layer is used to improve the compactness of the soil and the stability of the slope, and the nutrient soil layer is loam rich in organic matter and good in air permeability.

5. The embankment inner slope three-dimensional soil stabilization mesh mat and coconut coir mat combined protection structure according to claim 1, characterized in that, A grass seed layer is arranged between the nutrient soil layer and the protection layer, a fine soil layer is arranged between the grass seed layer and the protection layer, and a water interception ditch is arranged on one side of the embankment base.

6. The embankment inner slope three-dimensional soil stabilization mesh mat and coconut coir mat combined protection structure according to claim 1, characterized in that, The height of the U-shaped nail 6 is 20-40 cm, the distance between two U-shaped nails is 100 cm, the distance between two nails on the U-shaped nail is 100-150 cm, and the U-shaped nail is ф6 mm.

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