Sand dune river bank ecological protection structure

Abstract

The utility model discloses a sand dune river bank ecological protection structure which comprises a plurality of rows of willow piles parallel to a river bank, pile bodies of all the rows of willow piles are arranged at intervals, the pile bodies of the front and back adjacent rows of willow piles are arranged in a staggered mode in the shape of a Chinese character'pin ', and a row of concrete imitation wood piles are arranged on the water facing side of a bank slope. The pile bodies of the concrete wood-like piles are closely and adjacently arranged to form a fence, and the willow piles and the concrete wood-like piles are vertically inserted into a bank slope. The row of concrete imitation wood piles with the pile bodies arranged closely and adjacently are arranged on the near-water side of the bank slope, the lower ends of the concrete imitation wood piles go deep below the river channel scouring depth, the pile tops are higher than the normal water level, a fence is formed, and river channel water flow is effectively prevented from scouring the bank slope; a plurality of rows of willow piles are driven into the bank slope, willow tip bundles are used for filling after the piles, sandy soil is surrounded and blocked, and therefore ecological protection of the sand dune river bank is achieved; the rear sides of the willow tip bundles are compacted and filled with sandy soil, cold-resistant and drought-resistant flowers, shrubs and grass plants can be planted on the sandy soil, and the ecological effect of the river is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy projects, and particularly relates to an ecological protection structure for the bank of a dune river. Background Art

[0002] In the sandy area of the Loess Plateau, the climate is arid, the vegetation coverage rate is low, the wind erosion and water erosion of the river bank are strong, and the bank collapse is serious. In the construction of river channel protection projects, traditional rigid material structures such as grouted stone and concrete have poor adaptability to the deformation of sandy land, and local materials such as stones are relatively scarce. In addition, interlocking ecological slope protection, ecological bricks, etc. all require large-scale excavation construction to set the foundation, which causes great disturbance to the river bank and has poor ecological properties. Content of the Utility Model

[0003] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide an ecological protection structure for the bank of a dune river.

[0004] To solve the above problems, the utility model adopts the following technical scheme:

[0005] An ecological protection structure for the bank of a dune river includes multiple rows of willow piles arranged parallel to the river bank. The piles of each row of willow piles are spaced apart, and the piles of the front and rear adjacent rows of willow piles are arranged in a staggered "pin" shape. A row of concrete imitation wood piles is arranged on the water-facing side of the bank slope. The piles of the concrete imitation wood piles are closely adjacent to form a enclosure. The willow piles and the concrete imitation wood piles are vertically inserted into the bank slope, the lower end of the concrete imitation wood piles extends below the river channel scouring depth, the top of the concrete imitation wood piles is higher than the normal water level, the top of the first row of willow piles close to the water-facing side of the bank slope is higher than the top of the concrete imitation wood piles, and the top of the rear rows of willow piles is successively higher than the top of the front rows of willow piles. The air-facing surfaces at the rear sides of the piles of the concrete imitation wood piles and the willow piles are filled with willow twig bundles, and the rear sides of the willow twig bundles are compacted and filled with sand and soil.

[0006] Preferably, the willow piles are made of fresh willow piles with a pile diameter of 10 - 15 cm and a length of 2.5 - 3 m. The pile spacing of each row of willow piles is 0.1 - 0.3 m, and the row spacing is 1 m.

[0007] Preferably, the willow twig bundles are processed from fresh willow branches with a length of 2 - 3 m and a diameter of 10 - 25 mm. The diameter of a single willow twig bundle is ≥ 0.3 m and the length is 2 - 3 m. It is formed by tying a wire or hemp rope around it every 25 - 30 cm along the length direction.

[0008] Preferably, the top of the concrete imitation wood piles is at least 0.5 m higher than the normal water level. The top of the first row of willow piles close to the water-facing side of the bank slope is 0.5 m higher than the top of the concrete imitation wood piles, and the top of the rear rows of willow piles is successively 0.5 m higher than the top of the front rows of willow piles.

[0009] Preferably, each row of willow stakes is securely tied with steel wire, and each row of willow stakes is tightly bound to the willow branches behind them with steel wire to form a fence.

[0010] The beneficial effects of this utility model are:

[0011] Compared with existing technologies, the advantages of this utility model are:

[0012] This utility model involves installing a row of closely spaced concrete imitation wood piles on the water-facing side of the riverbank. The lower ends of the concrete imitation wood piles extend below the river's scour depth, while the tops are above the normal water level, forming a barrier to effectively prevent river flow from eroding the riverbank. Furthermore, multiple rows of willow piles are driven into the riverbank, and willow branches are used to bind and fill the area behind the piles, thus enclosing sand and achieving ecological protection for the riverbank. The area behind the willow branch bundles is then compacted and leveled with sand, on which cold- and drought-resistant flowers, shrubs, and grasses can be planted, enhancing the river's ecological benefits. Attached Figure Description

[0013] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the planar layout of this utility model.

[0015] In the picture: 1. Willow stake; 2. Bundle of willow tips; 3. Sand; 4. Concrete imitation wood stake. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-2As shown in the figure, the utility model provides a technical solution: an ecological protection structure for the bank slope of a dune river, which includes multiple rows of willow piles 1 arranged parallel to the river bank. The piles of each row of willow piles 1 are spaced apart, and the piles of the front and rear adjacent rows of willow piles 1 are arranged in a staggered "pin" shape. There is a row of concrete imitation wooden piles 4 on the water-facing side of the bank slope. The piles of the concrete imitation wooden piles 4 are closely adjacent to each other to form a enclosure. The willow piles 1 and the concrete imitation wooden piles 4 are both vertically inserted into the bank slope. The lower end of the concrete imitation wooden piles 4 extends below the river scouring depth. The top of the concrete imitation wooden piles 4 is higher than the normal water level. The top of the first row of willow piles 1 near the water-facing side of the bank slope is higher than the top of the concrete imitation wooden piles 4, and the top of the rear row of willow piles 1 is successively higher than the top of the front row of willow piles 1. The air-facing side of the piles of the concrete imitation wooden piles 4 and the willow piles 1 are filled with willow twig bundles 2, and the rear side of the willow twig bundles 2 is compacted and filled with sand 3.

[0018] In the utility model, there is a row of concrete imitation wooden piles 4 with closely adjacent piles on the water-facing side of the bank slope. The lower end of the concrete imitation wooden piles 4 extends below the river scouring depth, and the top is higher than the normal water level, forming a enclosure to effectively prevent the river water from scouring the bank slope. And multiple rows of willow piles 1 are driven into the bank slope, and the willow twig bundles 2 are filled behind the piles to enclose the sand, so as to achieve the ecological protection of the bank slope of the dune river. The rear side of the willow twig bundles 2 is compacted and filled with sand 3, and cold-resistant and drought-resistant flowers, shrubs and grasses can be planted on the sand to increase the ecological effect of the river.

[0019] Furthermore, the willow piles 1 are made of fresh willow piles with a pile diameter of 10 - 15 cm and a length of 2.5 - 3 m. The pile spacing of each row of willow piles 1 is 0.1 - 0.3 m, and the row spacing is 1 m. The fresh willow piles take root and sprout in the later stage of the project, and the wooden pile bodies protruding from the bank slope grow branches, making the shoreline more ecological.

[0020] Furthermore, the willow twig bundles 2 are processed from fresh willow branches with a length of 2 - 3 m and a diameter of 10 - 25 mm. After spring, the willow twig bundles 2 and the willow piles 1 grow, and the branches cross to form a stable protection body, making the sand fixation more firm and preventing bank collapse and soil erosion. Specifically, the diameter of a single willow twig bundle 2 ≥ 0.3 m, the length is 2 - 3 m, and it is tied with steel wire or hemp rope every 25 - 30 cm along the length direction to form a shape.

[0021] Specifically, the top of the concrete imitation wooden piles 4 is at least 0.5 m higher than the normal water level. The top of the first row of willow piles 1 near the water-facing side of the bank slope is 0.5 m higher than the top of the concrete imitation wooden piles 4, and the top of the rear row of willow piles 1 is successively 0.5 m higher than the top of the front row of willow piles 1.

[0022] Furthermore, each row of willow piles 1 is firmly tied with steel wire, and each row of willow piles 1 and the willow twig bundles 2 behind them are firmly tied with steel wire to form a fence, making the connection between the willow twig bundles 2 and the willow piles

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ecological protection structure for riverbanks in sand dunes, characterized in that, It includes multiple rows of willow piles (1) arranged parallel to the river bank. The piles of each row of willow piles (1) are spaced apart, and the piles of the front and rear adjacent rows of willow piles (1) are staggered in a "pin" shape. A row of concrete imitation wooden piles (4) is arranged on the water-facing side of the bank slope. The piles of the concrete imitation wooden piles (4) are closely adjacent to form a fence. The willow piles (1) and the concrete imitation wooden piles (4) are both vertically inserted into the bank slope. The lower end of the concrete imitation wooden piles (4) extends below the river scouring depth. The top of the concrete imitation wooden piles (4) is higher than the normal water level. The top of the first row of willow piles (1) close to the water-facing side of the bank slope is higher than the top of the concrete imitation wooden piles (4), and the tops of the rear rows of willow piles (1) are successively higher than the tops of the front rows of willow piles (1). The air-facing surfaces on the rear sides of the piles of the concrete imitation wooden piles (4) and the willow piles (1) are filled with willow tip bundles (2), and the rear sides of the willow tip bundles (2) are compacted and leveled with sand and soil (3).

2. The ecological protection structure for riverbank protection on sand dunes according to claim 1, characterized in that, The willow piles (1) are made of fresh willow piles with a pile diameter of 10 - 15 cm and a length of 2.5 - 3 m. The pile spacing of each row of willow piles (1) is 0.1 - 0.3 m, and the row spacing is 1 m.

3. The ecological protection structure for riverbank protection in sand dunes according to claim 1, characterized in that, The willow tip bundles (2) are processed from fresh willow branches with a length of 2 - 3 m and a diameter of 10 - 25 mm. The diameter of a single willow tip bundle (2) ≥ 0.3 m and the length is 2 - 3 m. It is formed by tying a wire or hemp rope around it every 25 - 30 cm along the length direction.

4. The ecological protection structure for riverbanks in sand dunes according to claim 1, characterized in that, The top of the concrete imitation wooden piles (4) is at least 0.5 m higher than the normal water level. The top of the first row of willow piles (1) close to the water-facing side of the bank slope is 0.5 m higher than the top of the concrete imitation wooden piles (4), and the tops of the rear rows of willow piles (1) are successively 0.5 m higher than the tops of the front rows of willow piles (1).

5. The ecological protection structure for riverbanks in sand dunes according to claim 1, characterized in that, Each row of willow piles (1) is firmly tied with wire, and each row of willow piles (1) and the willow tip bundle (2) behind it are firmly tied with wire to form a fence.

Images