CN212405193U - Ecological protection structure suitable for high and steep side slope in cold area - Google Patents
Ecological protection structure suitable for high and steep side slope in cold area Download PDFInfo
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- CN212405193U CN212405193U CN202020668620.3U CN202020668620U CN212405193U CN 212405193 U CN212405193 U CN 212405193U CN 202020668620 U CN202020668620 U CN 202020668620U CN 212405193 U CN212405193 U CN 212405193U
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Abstract
The utility model discloses a side slope protection technical field's an ecological protection structure suitable for steep side slope of cold areas height, include the geocell of fixing on the side slope through main anchor bar, fill up planting soil in the geocell, the planting soil surface is spread and is had three-dimensional geotechnological net pad, is equipped with organic substrate on the three-dimensional geotechnological net pad, and organic substrate surface is spread and is had non-woven geotechnological cloth. The utility model discloses at first utilize geotechnological check room to provide firm basis for planting soil, then provide the plant production matrix with three-dimensional geotechnological net pad and organic substrate, carry out earth and plant heat preservation with non-woven geotechnological cloth at last, effectively solve dry masonry, grout masonry and spout the solid soil among the ecological restoration of concrete protection boundary leather, plant the problem admittedly to and the vegetation matrix, vegetation initial stage heat preservation problem, and stable in structure is reliable, be favorable to the firm and ecological restoration of high and cold area side slope.
Description
Technical Field
The utility model relates to a side slope protection technical field especially relates to an ecological protection structure suitable for high steep side slope in cold areas.
Background
Because of the engineering characteristics of production and construction projects in the fields of highways, railways, mines, water conservancy and hydropower engineering and the like, a large amount of engineering manual disturbance slopes cannot be avoided, and parts of the slopes are located in cold areas, the slope protection types are many, the slopes usually include soil, soil-filled stones, rock masses and the like, the slopes are steep and usually greater than 45 degrees, the slope surface area exceeds thousands of square meters to tens of thousands of square meters, the height difference is large, the structure is loose, water and soil loss is easily generated under the action of external force, and even the slopes collapse, so that the stability and safety of the slopes, the regional environment and landscape coordination are influenced.
At present, traditional dry masonry, mortar masonry and concrete spraying protection are adopted for slope protection, large-area gray negative landscapes and artificial traces are formed, the large-area gray negative landscapes and the artificial traces are extremely inconsistent with the surrounding environment and the landscapes and are not beneficial to ecological restoration, and particularly in alpine regions, due to the fact that the slope protection is affected by alpine and steep, soil fixing and supporting structures and green plant growth substrates are lacked, the ecological protection effect is poor, and the protection effect is not lasting.
SUMMERY OF THE UTILITY MODEL
For overcoming the above-mentioned not enough that current side slope protective structure exists, the utility model aims to solve the technical problem that: provides a slope protection structure which is more suitable for alpine regions and is beneficial to ecological restoration.
The utility model provides a technical scheme that its technical problem adopted is:
the ecological protection structure suitable for the high and steep side slope in the cold area comprises a geocell fixed on the side slope through a main anchor bar, planting soil is filled in the geocell, a three-dimensional geonet cushion is paved on the surface of the planting soil, an organic base material is arranged on the three-dimensional geonet cushion, and non-woven geotextile is paved on the surface of the organic base material.
Furthermore, the main anchor bars are arranged at intervals of 1-2 grids of the geocell, and the geocell is bound and fixed by the fact that the grid corners of the geocell are attached to the main anchor bars.
Furthermore, one end of the main anchor bar, which extends out of the side slope, is provided with a bending part which is bent towards the upper part of the side slope, and the distance between the bending part and the side slope is the height of the geocell.
Furthermore, the depth of the main anchor bars inserted into the side slope is not less than 100cm, and the height of the geocell is not less than 10 cm.
Furthermore, auxiliary anchor bars are further arranged in the middle of each grid of the geocell, a layer of fixed mortar is sprayed in the grid of the geocell, and the upper ends of the auxiliary anchor bars exceed the surface of the fixed mortar.
Furthermore, the depth of the auxiliary anchor bars inserted into the side slope is not less than 80cm, and the thickness of the fixing mortar is 3-4 cm.
Further, the three-dimensional geonet pad is bound on the main anchor bars through ropes or steel wires.
Further, the edges of two adjacent three-dimensional geonet pads are cut into waves and then spliced, the spliced parts are overlapped for at least 15cm, and the spliced parts are interpenetrated and sewn through georopes.
Further, the organic base material covers the three-dimensional geonet pad, and the thickness of the organic base material is not less than 5 cm.
Further, the non-woven geotextile is fixed on the surface of the organic base material through wood chopsticks which are inserted at intervals.
The utility model has the advantages that: the method comprises the steps of firstly providing a stable foundation for planting soil by utilizing geocells, then providing a plant production matrix by using a three-dimensional geonet pad and an organic base material, and finally performing soil and plant heat preservation by using non-woven geotextile, so that the problems of soil fixation and plant fixation in ecological restoration of dry masonry, mortar masonry and concrete spraying protection boundary skins and the problems of plant growth matrix and plant growth initial stage heat preservation are effectively solved, and the structure is stable and reliable, so that the method is favorable for stabilizing and ecologically restoring the side slope in alpine regions.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a plan view of the present invention.
Fig. 3 is a schematic view of the main anchor bar of the present invention.
Fig. 4 is the utility model discloses three-dimensional geotechnological net pad concatenation sketch map.
Marked in the figure as 1-geocell, 2-three-dimensional geonet pad, 3-non-woven geotextile, 4-planting soil, 5-organic substrate, 6-main anchor bar, 7-auxiliary anchor bar, 8-fixing mortar, 9-georope, 61-bending part.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the utility model is suitable for an ecological protection structure of high steep slope in cold areas, include and fix geotechnological check room 1 on the side slope through main anchor bar 6, fill up planting soil 4 in geotechnological check room 1, the three-dimensional geotechnological net pad 2 has been laid on 4 surfaces of planting soil, is equipped with organic substrate 5 on the three-dimensional geotechnological net pad 2, and 5 surfaces of organic substrate are laid nonwoven geotechnological cloth 3.
The utility model discloses a work progress is:
firstly, drilling holes on a concrete mortar protection slope surface, installing main anchor bars 6, pouring cement mortar for fixing, then paving geocell 1 along the slope, hanging the geocell 1 on the main anchor bars 6, binding the main anchor bars 6 with the geocell 1 by using ropes or steel wires, enabling the geocell 1 to be tightly attached to the slope surface, then filling planting soil 4 into grids of the geocell 1, paving and hanging three-dimensional geocell pads 2 on the surfaces of the planting soil 4, then spraying organic base materials 5 on the three-dimensional geocell pads 2, wherein the organic base materials 5 comprise shrubs and grass seeds, and finally covering a layer of non-woven geotextile 3 on the surfaces of the organic base materials 5.
Since the geocell 1 is mainly supported by the main anchor bars 6, in order to ensure sufficient supporting force, the main anchor bars 6 are arranged at intervals of 1-2 meshes of the geocell, and the geocell 1 is bound and fixed by abutting the corners of the meshes on the main anchor bars 6, as shown in fig. 2. The size of the grid of the geocell commonly used at present is generally 50cm, and if the geocell with a smaller size is adopted, the distance of the main anchor bars 6 is properly controlled within 100-150 cm. The grid corner structural strength of the geocell 1 is relatively high, the main anchor bars 6 lean against the corners to be easier to bind, the stability can be improved, and meanwhile, the deformation of the geocell 1 is reduced.
When hanging and establishing geotechnological check room 1, only rely on the ligature still have the risk that drops, especially appear precipitation, when strong wind leads to the side slope unstability, consequently further improvement can main dowel 6 stretch out the one end of side slope and set up the portion of bending 61 of buckling towards side slope upper portion, as shown in fig. 3, the portion of bending 61 is the height of geotechnological check room 1 apart from the distance of side slope, just so can firmly block geotechnological check room 1 on main dowel 6, avoids appearing the condition that drops because of the ligature unstability. Meanwhile, the bending part 61 is also beneficial to subsequent binding of the three-dimensional geonet pad 2.
The general slope surface all has soil property or soil-rock-filled stone of certain thickness, in order to guarantee the reliability that main anchor bar 6 inserted, the degree of depth that main anchor bar 6 inserted the side slope should be no less than 100 cm. For the geocell 1, the grid size is about 50cm, the height is not less than 10cm, enough planting soil can be guaranteed for green plant growth, and meanwhile soil weathering is avoided.
Because the contact area of single main anchor bar 6 and geotechnique's check room 1 is too little, grows gradually along with green planting, and side slope weight constantly increases, and the condition that geotechnique's check room 1 splits, the whole landslide of side slope probably appears, consequently, for further improvement geotechnique's check room 1's stability each net middle part still is equipped with supplementary anchor bar 7, and the net bottom surface of geotechnique's check room 1 is spouted one deck fixed mortar 8, the upper end of supplementary anchor bar 7 surpasss fixed mortar 8 surfaces. Specifically, the depth of the auxiliary anchor bars 7 inserted into the side slope is not less than 80cm, and the thickness of the fixing mortar 8 is 3-4 cm. The contact area between the geocell 1 and a fixed foundation is increased by the fixed mortar 8, so that the stability of paving and hanging the geocell 1 is greatly increased, and the risk of integral instability of the side slope is reduced.
In addition to the geocell 1, it is also important to ensure the stability of the three-dimensional geonet pad 2. Three-dimensional geotechnological gauze pad 2 is hollow out construction or is three-dimensional wavy gauze pad, and the effect is mainly that the initial stage growth of planting for green provides firm guard action, because 5 textures of organic substrate are comparatively loose, receives wind and rain to blow off easily or run off, increases three-dimensional geotechnological gauze pad 2 backs, can play certain firm effect to the substrate, can play firm effect to green planting again when green planting growth initial stage root system is not long-term. Therefore, need guarantee three-dimensional geotechnological net pad 2 and base member and be connected steadily, this application adopts rope or steel wire with three-dimensional geotechnological net pad 2 ligature on main anchor muscle 6, guarantees three-dimensional geotechnological net pad's fixed. In addition, at the splicing position of two adjacent three-dimensional geonet pads 2, the edge is preferably cut into a wave shape and then spliced, as shown in fig. 4, the splicing positions are overlapped by at least 15cm, and the splicing position is penetrated and sewed through a georope, so that the splicing reliability is improved.
The organic base material 5 is composed of common planting soil, humus soil, organic fiber, a polymer regulator, an ecological fertilizer, a water-retaining agent and the like, and is sprayed on the three-dimensional geotechnical mesh pad 2 after being mixed with shrub and grass seeds. In order to meet the growth of shrubs and grass seeds, the three-dimensional geonet pad 2 is covered by the organic substrate 5, and the thickness of the three-dimensional geonet pad is not less than 5 cm. Because the temperature in alpine regions is low, the temperature difference between day and night is large, and in order to ensure the growth of green plants, a layer of non-woven geotextile 3 is required to cover the surface of the organic base material 5 for heat preservation. The non-woven geotextile 3 can be fixed on the surface of the organic base material 5 through wood chopsticks which are inserted at intervals, and no seam is needed to be left. When the early-stage maintenance stage is carried out, the germination and growth conditions of the seeds are observed, and the non-woven geotextile 3 is removed after the shrubs and the grass grow to 3 cm.
Claims (10)
1. Ecological protection structure suitable for high steep slope in cold areas, characterized by: the soil engineering grid comprises a soil engineering grid chamber (1) fixed on a side slope through main anchor bars (6), planting soil (4) is filled in the soil engineering grid chamber (1), a three-dimensional soil engineering net pad (2) is paved on the surface of the planting soil (4), an organic base material (5) is arranged on the three-dimensional soil engineering net pad (2), and non-woven geotextile (3) is paved on the surface of the organic base material (5).
2. The ecological protection structure suitable for the high and steep slope in the cold area as claimed in claim 1, wherein: the main anchor bars (6) are arranged at intervals of 1-2 grids of the geocell (1), and the geocell (1) is bound and fixed by the grid corners of the geocell (1) clinging to the main anchor bars (6).
3. The ecological protection structure suitable for the high and steep slope in the cold area as claimed in claim 2, wherein: the end, extending out of the side slope, of the main anchor bar (6) is provided with a bending portion (61) bending towards the upper portion of the side slope, and the distance between the bending portion (61) and the side slope is the height of the geocell (1).
4. The ecological protection structure suitable for the high and steep slope in the cold area as claimed in claim 3, wherein: the depth of the main anchor bars (6) inserted into the side slope is not less than 100cm, and the height of the geocell (1) is not less than 10 cm.
5. The ecological protection structure suitable for the high and steep slope in the cold area according to any one of claims 1 to 4, wherein: auxiliary anchor bars (7) are further arranged in the middle of each grid of the geocell (1), a layer of fixed mortar (8) is sprayed at the bottom of each grid of the geocell (1), and the upper ends of the auxiliary anchor bars (7) exceed the surface of the fixed mortar (8).
6. The ecological protection structure suitable for the high and steep slope in the cold area as claimed in claim 5, wherein: the depth of the auxiliary anchor bars (7) inserted into the side slope is not less than 80cm, and the thickness of the fixing mortar (8) is 3-4 cm.
7. The ecological protection structure suitable for the high and steep slope in the cold area as claimed in claim 1, wherein: the three-dimensional geonet pad (2) is bound on the main anchor bars (6) through ropes or steel wires.
8. The ecological protection structure suitable for the high and steep slope in the cold area as claimed in claim 7, wherein: the edges of two adjacent three-dimensional geonet pads (2) are spliced after being cut into waves, the spliced parts are overlapped by at least 15cm, and the spliced parts are interpenetrated and sewn through georopes (9).
9. The ecological protection structure suitable for the high and steep slope in the cold area as claimed in claim 1, wherein: the organic base material (5) covers the three-dimensional geonet pad (2) and is not less than 5cm in thickness.
10. The ecological protection structure suitable for the high and steep slope in the cold area as claimed in claim 1, wherein: the non-woven geotextile (3) is fixed on the surface of the organic base material (5) through wood chopsticks which are inserted at intervals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020668620.3U CN212405193U (en) | 2020-04-27 | 2020-04-27 | Ecological protection structure suitable for high and steep side slope in cold area |
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| CN202020668620.3U CN212405193U (en) | 2020-04-27 | 2020-04-27 | Ecological protection structure suitable for high and steep side slope in cold area |
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| CN212405193U true CN212405193U (en) | 2021-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126282A (en) * | 2022-07-25 | 2022-09-30 | 中国十九冶集团有限公司 | Post-reinforcement method for permanent support of adjacent important building structures |
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- 2020-04-27 CN CN202020668620.3U patent/CN212405193U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126282A (en) * | 2022-07-25 | 2022-09-30 | 中国十九冶集团有限公司 | Post-reinforcement method for permanent support of adjacent important building structures |
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