CN112211165A - Rock-fill dam low reaches dam slope surface regreening structure - Google Patents

Abstract

The invention provides a downstream dam slope surface regreening structure of a rock-fill dam, which comprises: a rockfill body; the lattice structure is arranged on the rockfill body; the sash structure includes: the supporting beams are arranged in parallel at intervals, the connecting beams are arranged in parallel at intervals, and each supporting beam and any one connecting beam are arranged in a staggered mode; each support beam is connected with all the connecting beams; the joint of each supporting beam and each connecting beam is provided with one dowel, and each dowel is inserted into the rock-fill body; a plurality of ecological bags are filled in each sash unit; and the spray-seeding base material layer is arranged on the surface of the ecological bag. According to the downstream dam slope surface greening structure of the rock-fill dam, the lattice structure can be stably arranged on a rock-fill body; the ecological bags can be stably arranged in the corresponding sash units; the spray-seeding base material layer is arranged on the surface of the ecological bag, so that the greening of the downstream dam slope surface of the rock-fill dam can be realized.

Description

Rock-fill dam low reaches dam slope surface regreening structure

Technical Field

The invention relates to the technical field of rock-fill dam downstream dam slope protection structures, in particular to a rock-fill dam downstream dam slope surface greening structure.

Background

The function of the downstream dam slope protection of the rock-fill dam is mainly to prevent from being washed by water and damaged artificially. The standard serial number according to rolling type earth and rockfill dam design standard is as follows: SL274-2001, wherein: the rockfill dam can adopt coarse particles or over-diameter stones in rockfill materials to serve as slope protection. The dry-laid stone revetment is usually adopted in China, but the dry-laid stone revetment takes much labor and materials. In recent years, due to high requirements of ecological landscapes in parts of regions, the dry masonry revetments are not coordinated with peripheral landscapes, so that a greening structure needs to be arranged on the slope surface of the downstream dam slope.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a rock-fill dam downstream slope greening structure.

In order to achieve the above and other related objects, the present invention provides a downstream slope regreening structure of a rock-fill dam, comprising:

a rockfill body;

the lattice structure is arranged on the rockfill body; the sash structure includes: the supporting beams are arranged in parallel at intervals, the connecting beams are arranged in parallel at intervals, and each supporting beam and any one connecting beam are arranged in a staggered mode; each supporting beam is connected with all the connecting beams to form a grid-shaped structure with a plurality of sash units;

the joint of each supporting beam and the connecting beam is provided with one dowel, and each dowel is inserted into the rockfill body;

a plurality of ecological bags, wherein planting soil is filled in each ecological bag, and a plurality of ecological bags are filled in the interior of each sash unit;

and the spray-seeding substrate layer is arranged on the surface of the ecological bag.

Preferably, all the ecological bags filled in each sash unit are arranged from bottom to top to form a plurality of rows of bag body combinations, each row of bag body combinations comprises a plurality of ecological bags which are arranged in sequence, and an interval between two adjacent ecological bags of a row of bag body combinations below is arranged right below any one ecological bag in each row of bag body combinations.

Preferably, the support beam and the connecting beam have the same structure, the width of the cross section of the support beam is 200mm-300mm, and the length of the cross section of the support beam is 300mm-400 mm.

Furthermore, the supporting beam and the connecting beam are reinforced concrete beams.

Preferably, the length of the inside of the sash unit is 2m to 4m, and the width of the inside of the sash unit is 2m to 4 m.

Preferably, the diameter of the dowel is 20mm-30mm, and the length of the dowel is 0.8-1.5 m.

Preferably, the thickness of the spray-seeding base material layer is 100mm-150 mm.

Preferably, the length of the ecological bag which is not filled with planting soil is 600mm-850mm, and the width of the ecological bag which is not filled with planting soil is 400mm-450 mm.

Preferably, the length of the ecological bag filled with planting soil is 450mm-700mm, the width of the ecological bag filled with planting soil is 280mm-320mm, and the height of the ecological bag filled with planting soil is 150mm-200 mm.

Preferably, the downstream dam slope surface greening structure of the rock-fill dam further comprises a non-woven fabric tarpaulin, and the non-woven fabric tarpaulin is arranged on the surface of the spray-seeding base material layer; the non-woven fabric thatch cover is fixed in through wood pick or nail on the substrate layer of spraying.

As mentioned above, the downstream dam slope surface greening structure of the rock-fill dam has the following beneficial effects:

according to the downstream dam slope surface greening structure of the rock-fill dam, the joint of each supporting beam and each connecting beam of the lattice structure is provided with one dowel, each dowel is inserted into a rock-fill body, and the lattice structure can be stably arranged on the rock-fill body through the structure; the sash structure is a grid-shaped structure with a plurality of sash units, the interior of each sash unit is filled with a plurality of ecological bags, and the structure enables the ecological bags to be stably arranged in the corresponding sash units; the spray-seeding base material layer is arranged on the surface of the ecological bag, so that the downstream dam slope surface of the rock-fill dam can be greened, and the downstream dam slope surface of the rock-fill dam has green landscape.

Drawings

Fig. 1 is a schematic side view of a downstream slope surface greening structure of a rock-fill dam of this embodiment.

Fig. 2 is a schematic top view of a downstream slope surface greening structure of a rock-fill dam of this embodiment.

Description of the reference numerals

100 rockfill

200 sash structure

210 support beam

220 connecting beam

201 sash unit

300 dowel bar

400 ecological bag

500 spray-seeding substrate layer

W1 support Beam Cross-sectional Width

Length of cross section of L1 support beam

Width of the interior of a W2 sash cell

Length of the interior of the L2 sash cell

Thickness of T1 spray-seeding substrate layer

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

As shown in fig. 1 to fig. 2, the downstream dam slope surface greening structure of the rock-fill dam of the present embodiment includes:

the rock-fill body 100 is a dam body structure of the rock-fill dam;

a lattice structure 200 disposed on the rockfill body 100; the sash structure 200 includes: a plurality of parallel and spaced support beams 210 and a plurality of parallel and spaced connecting beams 220, each support beam 210 and any one connecting beam 220 being arranged in a staggered manner; each support beam 210 is connected with all the connection beams 220 to form a grid-like structure having a plurality of sash cells 201;

a plurality of the joint bars 300, the joint of each support beam 210 and the connecting beam 220 is connected with the upper end of one joint bar 300, and the lower end of each joint bar 300 is inserted into the rockfill 100; the joint of each support beam 210 and the connecting beam 220 is bound and fixed with the upper end of the corresponding dowel bar 300;

a plurality of ecological bags 400, wherein planting soil is filled in each ecological bag 400, and a plurality of ecological bags 400 are filled in each sash unit 201;

and the spray-seeding base material layer 500 is arranged on the surface of the ecological bag 400.

According to the downstream dam slope surface greening structure of the rock-fill dam, the joint of each supporting beam 210 and each connecting beam 220 of the lattice structure 200 is provided with one dowel 300, each dowel 300 is inserted into a rock-fill body 100, and the lattice structure 200 can be stably arranged on the rock-fill body 100 due to the structure; the lattice structure 200 is a grid-shaped structure having a plurality of lattice units 201, and the interior of each lattice unit 201 is filled with a plurality of ecological bags 400, so that the ecological bags 400 can be stably arranged in the corresponding lattice unit 201, and the ecological bags 400 are prevented from moving; the spray-seeding substrate layer 500 is arranged on the surface of the ecological bag 400, so that the downstream dam slope surface of the rock-fill dam can be greened, and the downstream dam slope surface of the rock-fill dam has a green landscape. The downstream dam slope surface greening structure of the rock-fill dam of the embodiment solves the problems that the existing rock-fill dam downstream adopts dry-built stones to protect the slopes, wastes labor and materials, is not coordinated with peripheral landscapes and the like.

All the ecological bags 400 filled in each lattice unit 201 are arranged into a plurality of rows of bag body combinations from bottom to top, each row of bag body combinations comprises a plurality of ecological bags 400 which are arranged in sequence, and an interval between two adjacent ecological bags 400 of the lower row of bag body combinations is arranged right below any one ecological bag 400 in each row of bag body combinations. The structure enables the ecological bags 400 in two adjacent rows to form a shape like a Chinese character 'pin'. All the ecological bags 400 are constructed by adopting a stacking method, and all the ecological bags 400 are laid from bottom to top along the slope surface of the downstream dam of the rock-fill dam.

The pore size of the ecological bag 400 is permeable to water and soil, so that the ecological bag 400 filled with planting soil has a reverse filtration function of permeable to water and soil, and plant roots can freely grow through the ecological bag 400.

The structure of the support beam 210 is the same as that of the connection beam 220, the width W1 of the cross section of the support beam 210 is 200mm-300mm, and the length L1 of the cross section of the support beam 210 is 300mm-400 mm. The support beam 210 is a lattice beam. This configuration facilitates the fabrication and installation of the support beam 210 and the connection beam 220. In this embodiment, the width W1 of the cross section of the support beam 210 is 250mm, and the length L1 of the cross section of the support beam 210 is 300 mm.

The support beams 210 and the connection beams 220 are reinforced concrete beams, and the support beams 210 and the connection beams 220 can have better strength and rigidity. The sash structure 200 is manufactured by pouring concrete through a vertical form, and the sash structure 200 is maintained.

The length L2 of the inside of the lattice unit 201 is 2m-4m and the width W2 of the inside of the lattice unit 201 is 2m-4m, which makes the lattice structure 200 compact and can stably support the bio-bag 400. In the present embodiment, the length L2 of the inside of the sash cell 201 is 3m, and the width W2 of the inside of the sash cell 201 is 3 m.

The dowel 300 is cylindrical, the diameter of the dowel 300 is 20mm-30mm, and the length of the dowel 300 is 0.8-1.5 m. The size of the studs 300 is such that the studs 300 are stable in the rock body 100 and all of the studs 300 are able to stably support the lattice structure 200. In this embodiment, the diameter of the dowel 300 is 25mm, and the length of the dowel 300 is 1 m.

Carrying out spray-seeding on the downstream dam slope surface of the rock-fill dam by adopting an alien soil spray-seeding technology to form a spray-seeding base material layer 500; the thickness T1 of the spray-seeding base material layer 500 is 100mm-150mm, and in the embodiment, the thickness T1 of the spray-seeding base material layer 500 is 150 mm. In this embodiment, the spray-seeding base material layer 500 includes a soil dressing material, seeds, a composite fiber material, a soil stabilizer, a granulating agent, a plant fiber, and the like.

The downstream dam slope surface greening structure of the rock-fill dam further comprises a non-woven fabric tarpaulin (not shown in the figure), and the non-woven fabric tarpaulin is arranged on the surface of the spray-seeding base material layer 500; the non-woven fabric thatch cover is fixed on the spray-seeding substrate layer 500 through a wooden stick or a U-shaped nail. The non-woven fabric tarpaulin cover plays a role in heat preservation, moisture preservation and protection. In order to improve the germination rate of seeds, the sprinkling maintenance is strengthened for the greening structure of the downstream dam slope surface of the rock-fill dam after construction.

For the convenience of stacking, the length of the ecological bag 400 not filled with planting soil is 600mm-850mm, and the width of the ecological bag 400 not filled with planting soil is 400mm-450 mm. In this embodiment, the length of the ecological bag 400 not filled with planting soil is 810mm, and the width of the ecological bag 400 not filled with planting soil is 430 mm.

The length of the ecological bag 400 for filling the planting soil is 450mm-700mm, the width of the ecological bag 400 for filling the planting soil is 280mm-320mm, and the height of the ecological bag 400 for filling the planting soil is 150mm-200 mm. The length of the ecological bag 400 filled with planting soil is 650mm, the width of the ecological bag 400 filled with planting soil is 300mm, and the height of the ecological bag 400 filled with planting soil is 150 mm.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. The utility model provides a rock-fill dam low reaches dam slope surface structure of regreening which characterized in that includes:

a rockfill body (100);

a lattice structure (200) disposed on the rockfill body (100); the sash structure (200) comprises: the supporting beam structure comprises a plurality of supporting beams (210) which are arranged in parallel at intervals and a plurality of connecting beams (220) which are arranged in parallel at intervals, wherein each supporting beam (210) and any one connecting beam (220) are arranged in a staggered mode; each support beam (210) is connected with all the connecting beams (220) to form a grid-shaped structure with a plurality of grid units (201);

a plurality of dowel bars (300), wherein one dowel bar (300) is arranged at the joint of each support beam (210) and each connecting beam (220), and each dowel bar (300) is inserted into the rock-fill body (100);

a plurality of ecological bags (400), wherein planting soil is filled in each ecological bag (400), and a plurality of ecological bags (400) are filled in the interior of each sash cell (201);

and the spray-seeding base material layer (500) is arranged on the surface of the ecological bag (400).

2. The rock-fill dam downstream dam slope surface regreening structure of claim 1, wherein: every all the ecological bags (400) that fill in sash unit (201) arrange into multirow bag body combination from bottom to top, each row the bag body combination includes a plurality of setting gradually ecological bags (400), arbitrary one in each row of bag body combination be two adjacent of the one row of bag body combination in below under ecological bag (400) interval between ecological bags (400).

3. The rock-fill dam downstream dam slope surface regreening structure of claim 1, wherein: the structure of the support beam (210) is the same as that of the connecting beam (220), the width of the cross section of the support beam (210) is 200mm-300mm, and the length of the cross section of the support beam (210) is 300mm-400 mm.

4. The rock-fill dam downstream dam slope surface regreening structure of claim 1, wherein: the support beam (210) and the connecting beam (220) are reinforced concrete beams.

5. The rock-fill dam downstream dam slope surface regreening structure of claim 1, wherein: the length of the interior of the sash unit (201) is 2m to 4m, and the width of the interior of the sash unit (201) is 2m to 4 m.

6. The rock-fill dam downstream dam slope surface regreening structure of claim 1, wherein: the diameter of the inserted bar (300) is 20mm-30mm, and the length of the inserted bar (300) is 0.8-1.5 m.

7. The rock-fill dam downstream dam slope surface regreening structure of claim 1, wherein: the thickness of the spray-seeding base material layer (500) is 100mm-150 mm.

8. The rock-fill dam downstream dam slope surface regreening structure of claim 1, wherein: the length of the ecological bag (400) not filled with planting soil is 600mm-850mm, and the width of the ecological bag (400) not filled with planting soil is 400mm-450 mm.

9. The revegetation structure for a downstream dam slope of a rock-fill dam as claimed in claim 1, wherein the length of the ecological bag (400) filled with planting soil is 450mm-700mm, the width of the ecological bag (400) filled with planting soil is 280mm-320mm, and the height of the ecological bag (400) filled with planting soil is 150mm-200 mm.

10. The rock-fill dam downstream dam slope surface greening structure of claim 1, further comprising a non-woven fabric tarpaulin, wherein the non-woven fabric tarpaulin is arranged on the surface of the spray-seeding substrate layer (500); the non-woven fabric thatch cover is fixed on the spray-seeding base material layer (500) through a wooden stick or a nail.

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