CN209816870U - Steep concrete frame beam slope protection system beneficial to growth of slope vegetation - Google Patents
Steep concrete frame beam slope protection system beneficial to growth of slope vegetation Download PDFInfo
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- CN209816870U CN209816870U CN201920024184.3U CN201920024184U CN209816870U CN 209816870 U CN209816870 U CN 209816870U CN 201920024184 U CN201920024184 U CN 201920024184U CN 209816870 U CN209816870 U CN 209816870U
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Abstract
The utility model relates to an ecological bank protection technique of side slope aims at providing one kind and does benefit to side slope vegetation growth abrupt concrete frame lattice beam slope protection system. The lattice beam slope protection system comprises a concrete lattice beam reinforcing structure constructed on a steep rocky side slope; the system further comprises: the communicating pipe is pre-embedded in each lattice beam of each lattice and is used as a vegetation root communicating structure; the grid sheets are laid in the lattices and used as slope soil fixation and rooting structures; a plurality of drill holes are arranged on the slope surface of the side slope in each sash and are used for assisting the vegetation in rooting; and the matrix soil filled in each lattice and covering or filling the grid sheets, the drilled holes and the communication holes comprises plant seeds. The utility model discloses utilize communicating pipe to make plant roots absorb evenly, the root system can pass through the sash roof beam and play the effect of consolidating top soil, and top vegetation can completely cover the sash roof beam, reduces the exposed area of sash roof beam, provides ecological remediation effect, rebuilds the graceful view of side slope.
Description
Technical Field
The utility model relates to an ecological bank protection technical field of side slope, concretely relates to do benefit to side slope vegetation growth abrupt concrete frame lattice beam slope protection system.
Background
In recent years, the construction of infrastructures such as roads, railways, water conservancy projects, mines and nuclear power stations in China is rapidly developed, and in order to meet the requirement of mountain area infrastructure, a large number of rocky steep slopes are formed by excavating surrounding rock masses in engineering construction. Under the influence of complex geological conditions, the slope needs to be reinforced to ensure the long-term stability of the slope, wherein the adoption of a concrete lattice beam anchoring technology is a common engineering reinforcing measure for the steep rocky slope. A large number of side slopes reinforced by concrete lattice beams in the early stage are limited by factors such as terrain, geological conditions and the like, and most of the surfaces of the side slopes are exposed. Leading to a number of problems affecting slope stability and the surrounding ecological environment: on one hand, the exposed slope surface is affected by long-term exposure to the sun, rain and freezing and thawing, and is very easy to weather, so that the problems of local collapse or slope surface water and soil loss and the like are caused; on the other hand, the exposed steep rocky side slope is difficult to restore the original vegetation ecology by self, which causes environmental destruction and landscape defects. In recent years, with the national emphasis on ecological environment protection and ecological restoration, more and more steep concrete lattice beam side slopes need to be constructed by adopting artificial vegetation to realize ecological slope protection and environmental restoration.
At present, most of the commonly used ecological slope protection schemes of the steep concrete lattice beam side slope adopt soil or matrix materials required for vegetation growth cultivated in the lattice beam lattice to realize slope greening and vegetation growth. However, the slope of the rocky slope is generally steep and the height of the rocky slope is large, and the development degree of the slope cracks and the degree of variability of the integrity of the slope rock are large, so that the distribution of water and nutrients at different slope positions is uneven, vegetation growth conditions among different frames are different, and the ecological restoration effect is different. In addition, even in the same sash, the lower soil is easily supplied by rainwater, so that water and nutrients are often enriched, and the upper soil is blocked and shielded by the sash beams, so that the plants are often difficult to grow or survive due to insufficient water and nutrients. Moreover, at local rock mass comparatively complete domatic, slope protection plant roots hardly pricks the root and stretches into the internal portion of slope, because lack effectual root anchor effect, slope protection plant is difficult for growing, and it is comparatively difficult to resume the all ring edge borders ecological effect before the excavation, and the local soil that cultivates that collapses problem can take place even seriously.
From the above analysis, the main reasons influencing the growth of the vegetation on the steep concrete lattice beam slope are as follows: (1) due to the blocking effect of the lattice beams, the mutual communication and sharing of moisture and nutrients among different lattices cannot be realized, so that the vegetation growth on part of the slope surface is inhibited; (2) the complete domatic position of part rock mass, slope protection plant root are difficult to prick into the internal portion of slope, lead to the vegetation to be difficult to recover the level before the excavation, can take place the local collapse of slope protection vegetation growth soil even, influence the durability of vegetation bank protection.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, overcome not enough among the prior art, provide one kind and do benefit to the abrupt concrete frame roof beam bank protection system of side slope vegetation growth.
For solving the technical problem, the utility model discloses a solution is:
the steep concrete lattice beam slope protection system beneficial to the growth of side slope vegetation comprises a concrete lattice beam reinforcing structure built on a steep rocky side slope; the system further comprises:
the communicating pipe is pre-embedded in each lattice beam of each lattice and is used as a vegetation root communicating structure;
the grid sheets are laid in the lattices and used as slope soil fixation and rooting structures;
a plurality of drill holes are arranged on the slope surface of the side slope in each sash and are used for assisting the vegetation in rooting;
and the matrix soil filled in each lattice and covering or filling the grid sheets, the drilled holes and the communication holes comprises plant seeds.
As an improvement, in every sash roof beam, evenly arrange 2 ~ 4 communicating pipes.
As an improvement, the grid sheet is a plastic-coated galvanized wire mesh, a reinforced fiber woven mesh, a metal woven mesh or a wire mesh, and the shape and the size of the grid sheet are matched with those of the sash.
As an improvement, battens or wood blocks are arranged between the grid sheets and the slope surface of the side slope, so that the grid sheets and the slope surface keep a distance.
As an improvement, the number of the drilled holes in each sash is 3-5/m2And are uniformly arranged; the diameter of the drilled hole is 30-50 mm, and the depth is 150-300 mm.
As an improvement, the length of the communicating pipe is the same as the width of the lattice beam, the diameter is 30-70 mm, and the wall thickness is not less than 2 mm.
The utility model discloses in, communicating pipe is formed by the cutting of PVC pipe.
The system in the utility model is constructed by adding a vegetation root system communication structure and a slope soil-fixing and rooting structure in the construction process of reinforcing the side slope by adopting the concrete lattice beam; the method specifically comprises the following steps:
(1) 2-4 communicating pipes are respectively embedded in the construction position of each lattice beam of each lattice to serve as a vegetation root system communicating structure; paving grid pieces in each sash to serve as a slope soil-fixing and rooting structure; arranging a plurality of drill holes on the slope surface of the side slope in each sash for assisting the vegetation in rooting;
(2) carrying out the construction of the lattice beam and the anchoring engineering, and simultaneously fixing the communicating pipes and the lattice sheets;
(3) and spraying matrix soil containing plant seeds into each sash and each drill hole, and performing maintenance management at the initial growth stage of vegetation after the seeds germinate.
The matrix soil is prepared by mixing and uniformly stirring planting soil, organic matters, fertilizer, water-retaining agent, adhesive and plant seeds. The soil comprises the following components in per cubic meter of matrix soil: 700-800 kg of planting soil, 50-100 kg of organic matters, 20-50 kg of fertilizer, 0.5kg of water-retaining agent, 0.5kg of adhesive and 0.3-0.5 kg of plant seeds.
The utility model discloses in, the specification of the length, the diameter and the ground tackle of size, interval, stock or anchor rope of frame grider, by the designer of side slope reinforcement engineering according to the engineering requirement specifically confirm, right the utility model discloses specifically realize not having the influence, do not belong to the utility model discloses technical content.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses utilize communicating pipe to communicate adjacent sash roof beam, during moisture and the nutrient that is arranged in the planting soil on sash roof beam upper portion can flow to the sash under the roof beam through communicating pipe, the upper portion soil in every sash can obtain the moisture and the nutrient supply of one deck sash like this for moisture, nutrient distribution are even relatively in the sash, and plant roots absorbs like this and will be even relatively, and domatic afforestation effect is harmonious pleasing to the eye more.
(2) The utility model discloses in, the root system of plant can utilize communicating pipe to realize transversely, vertically wearing the lattice girder, plays the effect of consolidating top layer soil on the one hand, and on the other hand top layer vegetation can completely cover the lattice girder, reduces the exposed area of lattice girder, provides better ecological remediation effect, rebuilds the graceful view of side slope.
(3) The utility model discloses domatic setting in the sash assists the drilling of taking root, can make plant roots extend the growth to slope internal, has strengthened the adhesive force, prevents and treats soil erosion and water loss, has further strengthened the effect of vegetation bank protection.
(4) The utility model discloses can reduce the quantity of concrete on the basis of guaranteeing concrete frame roof beam intensity, reduce the reinforcement cost.
Drawings
FIG. 1 is a schematic view of a communication tube;
FIG. 2 is a schematic plan view of the placement position of a concrete lattice beam vegetation root system communication device;
fig. 3 is a schematic sectional view of the placement position of the concrete lattice beam vegetation root system communication device.
Reference numerals: 1, lattice beams; 2 anchor rods (cables); 3, wood strips; 4, communicating pipes; 5, drilling a hole; 6, a grid sheet; 7, a drainage ditch; 8 matrix soil.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The steep concrete lattice beam slope protection system beneficial to the growth of the vegetation on the side slope comprises a concrete lattice beam reinforcing structure built on the steep rock side slope; the system further comprises: the communicating pipe 4 pre-embedded in each lattice beam 1 of each lattice is used as a vegetation root communicating structure; the grid sheets 6 are laid in each sash and used as slope soil fixation and rooting structures; a plurality of drill holes 5 arranged on the slope surface of the side slope in each sash and used for assisting the vegetation to take root; and matrix soil 8 filled in each lattice and covering or filling the grid sheet 6, the drilled holes 5 and the communication holes 4, wherein the matrix soil contains plant seeds.
The structure of the communication pipe 4 in the utility model is shown in figure 1. The communicating pipe 4 is used for extending and growing the vegetation root system, the specific diameter can be determined according to the height of the lattice beam and the thickness of the plant root system, and the PVC pipe can be cut and embedded into the frame lattice beam 1 (as shown in figures 2 and 3). In each sash beam 1, 2-4 communicating pipes 4 are uniformly arranged. The length of the communication pipe 4 is the same as the width of the lattice beam 1, the diameter is 30-70 mm, and the wall thickness is not less than 2 mm.
The grid sheet 6 can be a plastic-coated galvanized wire mesh, a reinforced fiber woven mesh, a metal woven mesh or a wire mesh, and the shape and size of the grid sheet are matched with those of the sash. The plastic-coated galvanized wire netting is recommended to be adopted, and the corrosion resistance can be improved by carrying out plastic-coated and electroplating process treatment on the wire netting. The wood bars 3 (or wood blocks) are arranged between the grid sheets 6 and the slope surface of the side slope, so that gaps are reserved between the grid sheets 6 and the slope surface, the matrix soil 9 can be conveniently attached after spray seeding, and the slope surface soil layer can be ensured to have enough thickness.
In order to ensure the growth of the root system of the vegetation, drilling holes are also needed to be arranged on the slope with smooth and flat surface rocks and less cracks in the sash to assist the rooting of the vegetation. The number of drilled holes is 3-5/m2. The diameter of the drilled hole is 30-50 mm, and the depth is 150-300 mm.
A method for constructing a steep concrete lattice beam slope protection system beneficial to the growth of slope vegetation is characterized in that a vegetation root system communication structure and a slope soil fixation and rooting structure are additionally arranged in the construction process of reinforcing a slope by adopting a concrete lattice beam; the method specifically comprises the following steps: (1) 2-4 communicating pipes 4 are respectively embedded in the construction position of each lattice beam 1 of each lattice to serve as a vegetation root communicating structure; paving grid pieces 6 in each sash to serve as slope soil fixation and rooting structures; (2) carrying out the construction of the lattice beam 1 and the anchoring engineering, and simultaneously fixing the communicating pipes 4 and the grid sheets 6; (3) and spraying matrix soil 8 containing plant seeds into each sash and the drill holes 5, and performing maintenance management at the initial growth stage of vegetation after the seeds germinate.
The matrix soil 8 is formed by mixing and uniformly stirring planting soil, organic matters, fertilizers, water-retaining agents, adhesives, plant seeds and the like, and the specific components can be adjusted according to actual conditions. The plant seeds are mainly of short trees, shrubs and herbaceous plants. The example proportioning scheme is as follows: the soil comprises the following components in per cubic meter of matrix soil: 700-800 kg of planting soil, 50-100 kg of organic matters, 20-50 kg of fertilizer, 0.5kg of water-retaining agent, 0.5kg of adhesive and 0.3-0.5 kg of plant seeds.
The specific implementation example is as follows:
the construction method beneficial to the growth of vegetation on the steep concrete lattice beam side slope specifically comprises the following steps:
1) level slope surface
The residual pumice, broken stones, garbage and weeds on the slope surface are manually cleaned, and the bulging part of the slope is repaired, so that the plastic-coated galvanized iron wire mesh is convenient to lay.
2) Anchor rod (cable) positioning and drilling
The position of the anchor rod (cable) is determined by using a theodolite and a tape measure, and the longitudinal and transverse spacing of the anchor rod (cable) is determined according to the design requirement, and is generally 2-5 m. And (4) drilling holes by using a down-the-hole drilling machine, wherein the hole depth, the hole diameter and the drilling hole inclination angle are constructed according to a design drawing. After drilling, cleaning solution is used for removing sediments at the bottom of the hole. If the rocks on the surface of the side slope in the sash are smooth and flat, in order to ensure the growth of the vegetation root system, auxiliary rooting and drilling are carried out on the vegetation root system, the diameter of each drilling hole is 30-50 mm, the depth of each drilling hole is 150-300 mm, and the number of the drilling holes is 3-5/m2。
3) Anchor rod (cable) making and mounting
The anchor rod (cable) is manufactured according to the design requirement and is installed on site. Before installation, the exposed part of the anchor rod (cable) needs to be subjected to rust prevention treatment, and after the anchor rod (cable) is inserted, hole bottom grouting is carried out to fix the anchor rod (cable).
4) Frame beam manufacturing and mounting
Erecting a lattice beam and pouring a template and binding a reinforcement cage according to design requirements. And after the manufacturing is finished, field installation is carried out, and the intersection part of the sash beams is the position of the anchor head.
5) Laying plastic-coated galvanized iron wire net
The side length of the plastic-coated galvanized iron wire mesh is equivalent to the inner side length of the sash, and the plastic-coated galvanized iron wire mesh is treated by adopting plastic-coated and electroplating processes, so that the corrosion resistance is improved. Square wood strips (40mm multiplied by 300mm) are arranged between the plastic-coated galvanized wire netting and the slope surface, and the number of the square wood strips is 3-5 strips/m2In a quincunx arrangement. And hooking and clamping the batten gasket and the grid piece on the slope by using an inverted L-shaped anchor with the diameter of 6.5-10 mm and the length of 150-400 mm, and nailing the batten gasket and the grid piece into the rock with the pre-drilled small holes. The mesh sheet is kept about 4cm above the slope by the spacer. So that a gap is left between the wire netting and the slope surface, thereby being convenient for the attachment of the matrix soil for spray seeding and ensuring that the slope surface matrix soil layer has enough thickness.
6) Manufacture and installation of vegetation root system communication device
Ligature communicating pipe on sash roof beam steel reinforcement cage, 2 ~ 4 are placed to every sash edge, and concrete quantity is confirmed according to sash roof beam length and select for use the plant species.
7) Sash beam casting
After the communicating pipes are placed on the edges of the sashes, the sashes are communicated up and down and left and right, and then concrete is poured. The width of the sash beam is 400mm, the height of the sash beam is 500mm, and the side length of each sash is 2-5 m.
8) Anchor head closure
And (5) synchronously pouring anchor head concrete and the sash beam.
9) Spray-seeding plant growth substrate material
Mixing the matrix soil according to the requirement, filling each sash by a spray sowing device, and spraying a proper amount of water to provide water required by plant growth.
10) Covered with non-woven fabric or sun-shading net
The non-woven fabric or the shading net is laid to prevent the erosion of rainwater and play roles in reducing water evaporation, preserving heat and preserving moisture.
11) Manual maintenance
Watering in time according to weather conditions to promote seed germination; after the plants emerge, the emergence condition is checked in time, and the supplementary spraying and reseeding are carried out on the sparse areas of the seedlings in time; in the season of disease and insect pest occurrence, pesticide is sprayed properly to prevent and treat diseases and insect pests.
After the steps are completed, the slope vegetation can thrive after 1-2 years of maintenance, the lattice beams are gradually covered by overground parts (stems, leaves and branches) of plants, the aims of vegetation slope protection and ecological restoration are fulfilled, the vegetation is adaptive to growth after 2 years, and manual maintenance is generally not needed.
Claims (6)
1. An abrupt concrete lattice beam slope protection system beneficial to side slope vegetation growth comprises a concrete lattice beam reinforcing structure built on an abrupt rock side slope; characterized in that, the system also includes:
the communicating pipe is pre-embedded in each lattice beam of each lattice and is used as a vegetation root communicating structure;
the grid sheets are laid in the lattices and used as slope soil fixation and rooting structures;
a plurality of drill holes are arranged on the slope surface of the side slope in each sash and are used for assisting the vegetation in rooting;
and the matrix soil filled in each lattice and covering or filling the grid sheets, the drilled holes and the communication holes comprises plant seeds.
2. The system according to claim 1, wherein 2-4 communicating tubes are uniformly arranged in each lattice beam.
3. The system of claim 1, wherein the mesh sheet is a plastic coated galvanized wire mesh, a woven fiber-reinforced mesh, a woven metal mesh or a wire mesh, and has a shape and size matching the shape and size of the lattice.
4. The system of claim 1, wherein battens or blocks are provided between the mesh sheets and the slope surface to maintain a distance between the mesh sheets and the slope surface.
5. The system of claim 1, wherein the number of the drilled holes in each cell is 3-5/m2And are uniformly arranged; the diameter of the drilled hole is 30-50 mm, and the depth is 150-300 mm.
6. The system according to any one of claims 1 to 5, wherein the length of the communication pipe is the same as the width of the lattice beam, the diameter is 30-70 mm, and the wall thickness is not less than 2 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920024184.3U CN209816870U (en) | 2019-01-07 | 2019-01-07 | Steep concrete frame beam slope protection system beneficial to growth of slope vegetation |
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| CN201920024184.3U CN209816870U (en) | 2019-01-07 | 2019-01-07 | Steep concrete frame beam slope protection system beneficial to growth of slope vegetation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723068A (en) * | 2019-01-07 | 2019-05-07 | 浙江大学 | Rise steeply concrete frame lattice beam slope protection system and construction method are grown conducive to side slope vegetation |
| CN113373898A (en) * | 2021-06-10 | 2021-09-10 | 湖北工业大学 | Side slope heating method based on conductive polymer grouting gramineous plant cavity |
-
2019
- 2019-01-07 CN CN201920024184.3U patent/CN209816870U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723068A (en) * | 2019-01-07 | 2019-05-07 | 浙江大学 | Rise steeply concrete frame lattice beam slope protection system and construction method are grown conducive to side slope vegetation |
| CN113373898A (en) * | 2021-06-10 | 2021-09-10 | 湖北工业大学 | Side slope heating method based on conductive polymer grouting gramineous plant cavity |
| CN113373898B (en) * | 2021-06-10 | 2022-04-12 | 湖北工业大学 | Side slope heating method based on conductive polymer grouting gramineous plant cavity |
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