Compound section type ecological bank protection structure

Abstract

The utility model discloses a compound section type ecological bank protection structure which comprises a retaining wall, a pedestrian platform, an ecological protection slope and a bank top road which are sequentially arranged on a river bank from bottom to top along the inner side of a river channel, the top elevation of the retaining wall is higher than or equal to the designed high water level of the river channel, and telescopic deformation joints are arranged at the corners of a retaining wall body and the retaining wall body at intervals. The telescopic deformation joint is arranged in the direction perpendicular to the riverbed. Part of the retaining wall is lower than the riverbed surface, and a sand gravel backfilling area is arranged on the upstream side of the retaining wall to improve the anti-scouring performance of the bottom of the revetment through hard protection; a pedestrian platform and an ecological revetment are arranged above the retaining wall, the ecological property and landscape property of the revetment are improved, the ecological revetment can improve the stability of a bank slope, natural disasters such as collapse, revetment and debris flow can be effectively prevented from occurring on the slope surface, the ecological revetment has good ecological property, and the investment is relatively low; the telescopic deformation joint prevents the retaining wall from being partially immersed in water and partially exposed and prevents the structure from being cracked or damaged due to climate and temperature changes, and the service life of the retaining wall is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to an ecological bank protection structure with a compound cross-section. Background Art

[0002] The ecological revetment cross-section types used in the existing technology are mostly wall-type and slope-type. The wall-type and slope-type revetments with single structures cannot simultaneously meet the requirements of ecology, landscape, stability, durability, and expandability under special conditions. Therefore, this patent proposes a complex cross-section structure for ecological revetment. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes an ecological bank protection structure with a compound cross-section type, including a retaining wall, a pedestrian platform, an ecological slope protection and a embankment road arranged in sequence from bottom to top along the inner side of the river channel on the river embankment. The top elevation of the retaining wall is higher than or equal to the design high water level of the river channel. Expansion joints are arranged at the corners of the retaining wall body and at intervals of the retaining wall body. The expansion joints are arranged in a direction perpendicular to the riverbed.

[0004] Furthermore, the retaining wall is an inclined gravity retaining wall, including an inclined section and a horizontal section. The thickness of the retaining wall at the corners is greater than the thickness at both ends. The thickness of the horizontal section of the retaining wall remains unchanged, and the thickness of the inclined section gradually decreases.

[0005] Furthermore, the slope of the retaining wall on the water-facing side is 1:0.45, and the slope of the retaining wall on the water-receiving side is 1:0.25.

[0006] Furthermore, the expansion and deformation joint has a width of 2 cm, and a polyvinyl chloride mortar layer and a low-closed-cell foam board layer are arranged in the expansion and deformation joint, the polyvinyl chloride mortar layer is close to the river channel, and the low-closed-cell foam board layer is far away from the river channel.

[0007] Furthermore, the retaining wall is partially embedded in the riverbed, and a gravel backfill area is provided on the water-facing side of the retaining wall.

[0008] Furthermore, the pedestrian platform is paved with permeable bricks, and below the permeable bricks are arranged in sequence: a dry cement mortar cushion layer and a natural sand and gravel cushion layer.

[0009] Furthermore, curbstones and railings are arranged on both sides of the pedestrian platform, the railings are arranged on the side of the pedestrian platform close to the river, and the curbstones are arranged on the side of the pedestrian platform away from the river.

[0010] Furthermore, the ecological slope protection includes ecological interlocking bricks, and grass seeds are sown in the ecological interlocking bricks.

[0011] The beneficial effects of the utility model are as follows:

[0012] The utility model has a compound cross-section ecological revetment structure, in which an inclined gravity retaining wall is arranged at the bottom of the river channel, part of the retaining wall is lower than the riverbed surface, and a gravel backfill area is arranged on the water-facing side of the retaining wall to improve the scouring resistance of the bottom of the revetment with hard protection; a pedestrian platform and an ecological slope protection are arranged above the retaining wall to improve the ecology and landscape of the revetment. The ecological revetment can improve the stability of the slope, effectively prevent natural disasters such as landslides, slope protection, and mud-rock flows on the slope, and has good ecological properties with relatively low investment; the expansion joints prevent the retaining wall from cracking or being damaged due to partial immersion in water and partial exposure, climate and temperature changes, and increase the service life of the retaining wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 It is a schematic diagram of the connection relationship of expansion and deformation joints.

[0015] Figure numerals: 1. retaining wall, 101. inclined section, 102. horizontal section, 103. drainage pipe, 2. pedestrian platform, 3. ecological slope protection, 4. embankment road, 5. expansion joint, 6. polyvinyl chloride mortar layer, 7. low-closed-cell foam board layer, 8. gravel backfill area, 9. railing, 10. curbstone. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0017] See also Figure 1 and Figure 2 The utility model proposes an ecological bank protection structure with a compound cross-section, comprising a retaining wall 1, a pedestrian platform 2, an ecological slope protection 3 and a embankment road 4 arranged in sequence from bottom to top along the inner side of the river channel on the river embankment. The top elevation of the retaining wall 1 is higher than or equal to the designed high water level of the river channel. Expansion joints 5 are arranged at the corners of the retaining wall 1 and at intervals of the retaining wall 1. The expansion joints 5 are arranged in a direction perpendicular to the riverbed.

[0018] The retaining wall 1 is an inclined gravity retaining wall, including an inclined section 101 and a horizontal section 102. The thickness of the retaining wall 1 at the corners is greater than the thickness at the two ends. The thickness of the horizontal section 102 of the retaining wall 1 remains unchanged, and the thickness of the inclined section 101 gradually decreases. The water-facing side slope of the retaining wall 1 is 1:0.45, and the back-facing side slope is 1:0.25. It adopts a cast-in-place C25 concrete structure. Specifically, a drainage pipe 103 runs horizontally through the retaining wall 1, and the drainage pipe 103 is used to discharge ground infiltration water into the river channel. The retaining wall 1 is partially embedded in the riverbed, and a gravel backfill area 8 is set on the water-facing side of the retaining wall 1. The retaining wall 1 has a strong anti-scouring ability, and the lower part can meet a certain expansion space, which is convenient for the construction of other landscape buildings in the river channel in the later stage.

[0019] The expansion and deformation joint 5 is 2 cm wide, and the length direction of the expansion and deformation joint 5 is perpendicular to the riverbed. A polyvinyl chloride putty layer 6 and a low-closed-cell foam board layer 7 are arranged in the expansion and deformation joint 5. The polyvinyl chloride putty layer 6 is close to the river channel, and the low-closed-cell foam board layer 7 is far away from the river channel. The expansion and deformation joint 5 prevents the retaining wall 1 from being partially immersed in water and partially exposed, or from climate and temperature changes, thereby increasing the service life of the retaining wall 1.

[0020] The pedestrian platform 2 is paved with permeable bricks, and below the permeable bricks are arranged in sequence: a dry cement mortar cushion layer and a natural sand and gravel cushion layer. Curbstones 10 and railings 9 are set on both sides of the pedestrian platform 2. The railings 9 are set on the side of the pedestrian platform 2 close to the river, and the curbstones 10 are set on the side of the pedestrian platform 2 away from the river. Specifically, the pedestrian platform 2 is 3m wide and paved with permeable bricks, and below them are arranged in sequence: a 30mm thick 1:6 dry cement mortar cushion layer, a 300mm thick well-graded natural sand and gravel cushion layer, and the curbstones 10 are cast-in-place C20 concrete curbstones 10. The pedestrian platform 2 is set up to facilitate visitors to appreciate the beautiful scenery of the river, and is a practical and beautiful hydrophilic platform.

[0021] The ecological slope protection 3 includes ecological interlocking bricks, and grass seeds are sown in the ecological interlocking bricks to improve the stability of the slope, effectively prevent natural disasters such as landslides, slope protection, and mud and rock flows on the slope, and has good ecological properties and relatively low investment.

[0022] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments made by ordinary technicians in this field are all within the scope of protection of the present invention.

Claims

1. A composite cross-section ecological revetment structure, characterized in that: include: The retaining wall, pedestrian platform, ecological slope protection and embankment road are arranged in sequence from bottom to top along the inner side of the river channel on the river embankment. The top elevation of the retaining wall is higher than or equal to the design high water level of the river channel. Expansion joints are set at the corners of the retaining wall body and at intervals of the retaining wall body. The expansion joints are set in a direction perpendicular to the riverbed.

2. The compound cross-section ecological revetment structure according to claim 1 is characterized in that: The retaining wall is an up-sloping gravity retaining wall, including an inclined section and a horizontal section. The thickness of the retaining wall at the corner is greater than that at both ends. The thickness of the horizontal section of the retaining wall remains unchanged, and the thickness of the inclined section gradually decreases.

3. The ecological revetment structure of compound cross-section according to claim 1 is characterized in that: The water-facing side slope of the retaining wall is 1:0.45, and the water-facing side slope is 1:0.

25.

4. The compound cross-section ecological revetment structure according to claim 1 is characterized in that: The expansion and deformation joint has a width of 2 cm. A polyvinyl chloride mortar layer and a low-closed-cell foam board layer are arranged in the expansion and deformation joint. The polyvinyl chloride mortar layer is close to the river channel, and the low-closed-cell foam board layer is far away from the river channel.

5. The compound cross-section ecological revetment structure according to claim 1 is characterized in that: The retaining wall is partially embedded in the riverbed, and a sand and gravel backfill area is set on the water-facing side of the retaining wall.

6. The compound cross-section ecological revetment structure according to claim 1 is characterized in that: The pedestrian platform is paved with permeable bricks, and below the permeable bricks are arranged in sequence: a dry cement mortar cushion layer and a natural sand and gravel cushion layer.

7. The compound cross-section ecological revetment structure according to claim 1 is characterized in that: Curbstones and railings are arranged on both sides of the pedestrian platform, the railings are arranged on the side of the pedestrian platform close to the river, and the curbstones are arranged on the side of the pedestrian platform away from the river.

8. The compound cross-section ecological revetment structure according to claim 1 is characterized in that: The ecological slope protection comprises ecological interlocking bricks, and grass seeds are sown in the ecological interlocking bricks.

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