CN209914440U

CN209914440U - Ecological vegetation net pad

Info

Publication number: CN209914440U
Application number: CN201920501800.XU
Authority: CN
Inventors: 李兆恒; 黄锦林
Original assignee: Guangdong Research Institute of Water Resources and Hydropower
Current assignee: Guangdong Research Institute of Water Resources and Hydropower
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-01-10
Anticipated expiration: 2029-04-15

Abstract

The utility model provides an ecological vegetation net cushion, which comprises an upper wrapping layer, a seed layer and a lower wrapping layer; the lower wrap being filled with a curable powder material, the intermediate wrap including apertures sufficiently small to retain the powder material within the lower wrap space but to allow passage of liquid, the powder material being capable of curing to a rigid or semi-rigid solid upon ingress of liquid; and (3) laminating the upper wrapping layer, the seed layer, the middle wrapping layer and the lower wrapping layer, and fixedly connecting the upper wrapping layer, the seed layer, the middle wrapping layer and the lower wrapping layer in sequence by using a suture and/or an adhesive to prepare the ecological vegetation net pad.

Description

Ecological vegetation net pad

Technical Field

The utility model relates to a building material technical field, concretely relates to ecological vegetation mat.

Background

With the rapid development of economy in China, the basic construction is more and more emphasized, and the rapid development of highways, light rail railways, large-scale hydropower engineering and urban construction is achieved. Meanwhile, a large amount of mountain excavation is inevitably caused, the surface layer of the rock mass is exposed due to ecological damage, and the phenomena of debris flow and landslide caused by water and soil loss occur, so that public safety is seriously damaged.

Scientific and technological leap development, and slope protection and reinforcement technology is also gradually updated, so that geological disasters caused by natural factors can be effectively prevented and treated. Aiming at the rock slope after artificial development, technical measures such as mortar plastering, mortar rubble, net hanging anchor spraying and concrete surface layer spraying can be adopted to realize firmer slope protection, but the method is based on scientific development and goes through the idea of sustainable development, so that the method has high economic cost, the ecological environment on the surface of the rock mass is difficult to recover, and the probability of potential occurrence of secondary disasters caused by the damage of an ecological system is increased. On the other hand, materials such as cement, concrete, masonry and the like have good stability in a period of time, but have certain timeliness after all if corroded by natural factors for a long time, and the slope protection efficiency of the materials is in a descending trend. How to restore the ecosystem while ensuring the slope stability becomes the research hotspot of the current geotechnical engineering, in particular to the weak ecosystem of a high-gradient rock slope, and once the ecology is damaged, the ecological slope is a typical slope which is difficult to restore, and is an important content of the slope protection research of the geotechnical boundary.

The functional requirements of various construction projects are continuously improved, the excavation height of the side slope is gradually increased, and the stability of the geotechnical side slope directly influences the stability, durability and safety of the engineering building. Traditional rock matter side slope protection technology is mostly limited to under the prerequisite of guaranteeing stable in structure, adopts the top layer to climb plant and plants, perhaps carries out surface greening through shallow layer spray seeding plant growth technique for reduce domatic instability and erosion, be in a state of peeling off between its ecological protection and the structural protection. The ecological slope protection technology is limited by multiple factors such as difficult water storage, difficult soil fixation, difficult net hanging and the like on the surface of a rock mass, can only ensure the greening effect in a short time, cannot form an effective ecological system, has high later maintenance cost, needs to supply nutrients required by vegetation ecology manually and continuously, and cannot promote the establishment of a row and effective ecological circulation system on the surface of the slope body.

Disclosure of Invention

To the technical problem that above-mentioned exists, the utility model provides an ecological vegetation mat for slope protection, its simple structure, construction convenience, the antiscour anti erosion ability reinforce can stabilize on the side slope to guarantee the smooth growth of plant simultaneously.

An object of the utility model is to provide an ecological vegetation mat, it includes parcel layer, seed layer, middle parcel layer, lower parcel layer, go up between parcel layer and the seed layer, between seed layer and the middle parcel layer, through suture and/or adhesive fixed connection between middle parcel layer and the lower parcel layer, lower parcel layer is filled there is solidifiable powder material, and middle parcel layer includes enough little hole in order to keep powder material in the parcel layer space down but allow liquid to pass through, and this powder material can solidify into rigidity or semi-rigid solid when liquid enters.

Further, the settable powder comprises cement or a cement-based composition.

Further, the curable powder comprises the following raw materials in parts by weight: 50-100 parts of cement, 400-600 parts of porous aggregate and 2-3 parts of resin.

Further, the porous aggregate is one or more of porous ceramsite and porous zeolite.

Further, the ecological vegetation net cushion can also comprise a bottom layer, wherein the bottom layer adopts a mesh fabric with the mesh number of 50-500, and the bottom layer is fixedly connected with the lower wrapping layer through a suture and/or an adhesive.

Furthermore, the thickness of the upper wrapping layer and the middle wrapping layer is 0.5-1.5mm, and the thickness of the lower wrapping layer is 1.0-4.0 mm.

The utility model discloses beneficial effect for prior art is:

(1) on the basis of upper wrapping layer, seed layer, middle wrapping layer and lower wrapping layer fixed connection, curable powder material is filled in the lower wrapping layer, so that the ecological vegetation mat forms a more stable integrated structure. Traditional ecological vegetation mat is when suffering storm surge and flowing water and erodeing, takes place the slip easily, and the utility model discloses an ecological vegetation mat is owing to have rigidity or semi-rigid solid, holistic gravity also improves thereupon, therefore can fix on the slope better.

(2) Compared with the traditional ecological vegetation net cushion, the ecological vegetation net cushion has higher compressive strength and can support passerby to walk.

(3) The structure is simple, the production speed is high, the generation process can be finished indoors, the laying process is simple and rapid, the influence of weather conditions is avoided, and the rapid construction on site can be realized.

(4) The upper wrapping layer, the middle wrapping layer and the lower wrapping layer in the ecological vegetation net pad have good water permeability, air permeability and light transmittance, and have good water retention, fertilizer retention and sun-proof effects, and plant roots can penetrate through the wrapping layers to ensure the smooth growth of plants.

(5) The curable powder material is capable of curing into a macroporous rigid or semi-rigid solid without affecting the rooting growth of the plant.

(6) An intermediate wrapping layer is arranged between the seed layer and the curable powder material and is used as an isolating layer, so that the growth of plants is not influenced by an alkaline environment when the curable powder material is cured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of the ecological vegetation mat of the present invention.

Fig. 2 is an upper wrapping layer of the ecological vegetation mat provided in embodiment 1 of the present invention;

fig. 3 is a seed layer of the ecological vegetation mat provided in embodiment 1 of the present invention;

fig. 4 is a middle layer of the ecological vegetation mat provided in embodiment 1 of the present invention;

fig. 5 is a lower wrapping layer of the ecological vegetation mat provided in embodiment 1 of the present invention;

fig. 6 is a schematic view of the sewing of each layer of the ecological vegetation mat provided in embodiment 1 of the present invention.

Description of reference numerals: 1-coating a layer; 2-seed layer; 3-an intermediate layer; 4-lower wrapping layer; 5-a curable powder material; 6-suture line.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The utility model provides an ecological vegetation mat, its includes parcel layer, seed layer, middle parcel layer, lower parcel layer, go up between parcel layer and the seed layer, between seed layer and the middle parcel layer, through suture and/or adhesive fixed connection between middle parcel layer and the lower parcel layer, lower parcel layer is filled with solidifiable powder material, and middle parcel layer includes enough little hole in order to keep powder material in parcel layer space down but allow liquid to pass through, and this powder material can solidify into rigidity or semi-rigid solid when liquid enters.

The preparation process comprises the following steps:

(1) regularly paving a porous non-woven fabric with the thickness of 4mm on a bottom plate to serve as a lower wrapping layer;

(2) regularly paving non-woven fabrics with the thickness of 1mm on the lower wrapping layer to serve as an intermediate wrapping layer;

(3) uniformly spreading a seed layer with the thickness of 1cm, which contains plant seeds, a water-retaining agent, a fertilizer and a microbial agent, on the middle wrapping layer;

(4) regularly spreading a non-woven fabric with the thickness of 0.5mm on the seed layer;

(5) all the layers are fixedly connected through a sewing needle inserting machine;

(6) filling curable powder materials in the porous space of the lower wrapping layer, wherein the curable powder materials comprise the following components in parts by weight: 75 parts of cement, 500 parts of porous aggregate and 2.5 parts of sodium polyacrylate resin.

During construction, the manufactured ecological vegetation net mat is transported out in a coiled material form, laid on a side slope and directly sprinkled with water.

The planting experiment of the samples with different seeds in example 1 shows that the general flower seeds and/or grass seeds can germinate after 6-8 days, the flowers and/or grass can grow out from the seeds after about 14 days, and the greening effect can be seen within one month.

The above specific embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an ecological vegetation mat, its characterized in that includes parcel layer, seed layer, middle parcel layer, lower parcel layer, go up between parcel layer and the seed layer, between seed layer and the middle parcel layer, through suture and/or adhesive fixed connection between middle parcel layer and the lower parcel layer, lower parcel layer is filled with solidifiable powder material, and middle parcel layer includes enough little hole in order to keep powder material in the space of parcel layer down but allow liquid to pass through, and this powder material can solidify into rigidity or semi-rigid solid when liquid enters.

2. The ecological vegetation mat according to claim 1, which further comprises a bottom layer, wherein the bottom layer is a mesh fabric with a mesh number of 50-500, and is fixedly connected with the lower wrapping layer through stitches and/or an adhesive.

3. The ecological vegetation mat as claimed in claim 1, wherein the upper and middle wrapping layers have a thickness of 0.5-1.5mm, and the lower wrapping layer has a thickness of 1.0-4.0 mm.