Seawall top ecological reconstruction structure and construction method thereof

Abstract

The invention discloses an ecological reconstruction structure for a seawall top. The ecological reconstruction structure comprises a pavement structure constructed on the seawall top; the wave wall is constructed on the embankment top and located on the outer side of the pavement structure; the green belt is constructed on the inner side of the wave wall; the road shoulder is arranged on the inner side of the wave wall and is positioned between the pavement structure and the green belt; and the water storage device is positioned below the pavement structure, is adjacent to the road shoulder, and is used for accumulating rainwater at the embankment top and supplying water to the green belt. The invention further discloses a construction method of the seawall top ecological reconstruction structure. The ecological property of the seawall is improved, the safety of the seawall is guaranteed, the water drainage amount of the seawall top is reduced, and growth water is provided for greening.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to an ecological transformation structure for a seawall crest and a construction method thereof. Background Art

[0002] Traditional seawalls have roads that meet traffic requirements on the top of the embankment, and wave-breaking walls on the outside. The top surface of the embankment is a hard structure, and rainwater is discharged into the inner enclosure, which has poor landscape and ecological properties. On the one hand, with the development of cities, the flood control standards of seawalls have been improved. On the other hand, the country has higher and higher requirements for the ecological construction of seawalls, and advocates the construction of low-impact development rainwater systems. Therefore, when renovating the original seawall to meet the standards, it is necessary to fully consider the ecology of the seawall and the construction of sponge cities. Therefore, it is necessary to seek a new seawall crest structure system so that green plants can be planted on the crest, and a certain amount of rainwater can be absorbed and released for greening.

[0003] Therefore, the applicant has found a solution to the above-mentioned problem through beneficial exploration and research, and the technical solution to be introduced below is produced in this context. Summary of the invention

[0004] One of the technical problems to be solved by the present invention is to provide an ecological transformation structure for the top of a seawall in response to the deficiencies of the prior art, wherein the top of the seawall can be used to plant green plants and store rainwater on the top of the seawall, thereby reducing rainwater loss and providing for green plants, thereby improving the ecological landscape effect of the seawall.

[0005] The second technical problem to be solved by the present invention is to provide a construction method for the above-mentioned seawall top ecological transformation structure.

[0006] As a first aspect of the present invention, a seawall top ecological transformation structure comprises:

[0007] A road surface structure built on top of an embankment;

[0008] A wave-breaking wall constructed on the top of the embankment and located outside the pavement structure;

[0009] A green belt constructed on the inner side of the wave-breaking wall;

[0010] A shoulder disposed inside the wave-breaking wall and between the road surface structure and the green belt; and

[0011] A water storage device located below the pavement structure and adjacent to the road shoulder is used to accumulate rainwater on the top of the embankment and supply water to the green belt.

[0012] In a preferred embodiment of the present invention, the pavement structure includes an upper layer of water-permeable structure and a lower layer of water-impermeable structure stacked from top to bottom.

[0013] In a preferred embodiment of the present invention, the upper surface of the pavement structure is inclined from the center of the road toward both sides, so that the water on the pavement structure is discharged toward both sides.

[0014] In a preferred embodiment of the present invention, the wave-breaking wall includes a wave-breaking bottom plate and a wave-breaking wall body constructed on the wave-breaking bottom plate, and a plurality of short drainage pipes penetrating the wave-breaking wall body are arranged in the lower part of the wave-breaking wall body at intervals along the axial direction of the embankment.

[0015] In a preferred embodiment of the present invention, the short drainage pipes are arranged obliquely, and the distance between two adjacent short drainage pipes is 1.5m to 4m.

[0016] In a preferred embodiment of the present invention, the green belt is constructed on the wave-breaking base plate and is located between the wave-breaking wall and the pavement structure, and the green belt includes a planting soil layer, a geotextile layer and a water collection layer stacked from top to bottom, and green plants are planted on the planting soil layer.

[0017] In a preferred embodiment of the present invention, a permeable body is arranged on the geotextile layer between the planting soil layer and the shoulder.

[0018] In a preferred embodiment of the present invention, the water permeable body comprises a small gravel layer, a coarse sand layer and a fine sand layer which are sequentially stacked from top to bottom.

[0019] In a preferred embodiment of the present invention, the water-collecting layer is filled with a material having a relatively large porosity, the water inlet end of the drainage short pipe is flush with the top of the water-collecting layer, and the geotextile layer is folded downward on one side close to the wave-breaking wall body and extends between the water-collecting layer and the wave-breaking wall body, so as to separate the water-collecting layer from the drainage short pipe.

[0020] In a preferred embodiment of the present invention, the shoulder is arranged on the wave-breaking base plate and is located between the green belt and the road surface structure. The shoulder and the wave-breaking base plate are integrally cast on site or prefabricated and then installed on the wave-breaking base plate.

[0021] In a preferred embodiment of the present invention, a plurality of drainage grooves are provided on the top surface of the shoulder at intervals along the axial direction of the embankment, so that the top surface of the shoulder is arranged in a staggered zigzag shape with high and low levels.

[0022] In a preferred embodiment of the present invention, the water storage device includes a water storage pipe and a plurality of thin connecting pipes, the water storage pipe is arranged on the wave-breaking base plate and extends along the axis direction of the embankment and is located below the pavement structure and on the inner side of the shoulder, the plurality of thin connecting pipes are arranged at intervals along the axis direction of the embankment, one end of each thin connecting pipe is connected to the water storage pipe, and the other end thereof passes through the shoulder and is connected to the water collecting layer.

[0023] As a second aspect of the present invention, a construction method for a seawall top ecological transformation structure comprises the following steps:

[0024] Step S1, dismantling the original seawall and road surface structure on the top of the seawall;

[0025] Step S2, casting the wave-breaking wall outside the embankment top according to the design requirements, and pre-burying the short drainage pipe in the wave-breaking wall;

[0026] Step S3, burying a water storage device at a position below the pavement structure and close to the road shoulder;

[0027] Step S4, constructing a green belt on the inner side of the wave-breaking wall;

[0028] Step S5, constructing a shoulder on the inner side of the wave-breaking wall and between the road surface structure and the green belt;

[0029] Step S6, laying a road surface structure on the top of the embankment.

[0030] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] 1. The present invention plants greenery on the top of the seawall, provides a habitat for other organisms, and increases the ecological quality of the seawall;

[0032] 2. The present invention improves the drainage capacity of the seawall pavement, reduces the infiltration of rainwater into the embankment, and affects the safety of the seawall;

[0033] 3. The present invention can accumulate a certain amount of rainwater on the top of the dike, reduce the amount of water discharged from the top of the dike, and provide moisture for the growth of greenery. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a structural schematic diagram of the present invention.

[0036] Figure 2 It is a detailed schematic diagram of the outer side of the dike top structure of the present invention.

[0037] Figure 3 It is a diagram of the staggered arrangement of shoulders of the present invention along the axis of the embankment. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0039] See also Figure 1 and Figure 2 , the figure shows an ecological transformation structure of a seawall top, including a pavement structure 100, a wave-breaking wall 200, a green belt 300, a shoulder 400 and a water storage device 500.

[0040] The pavement structure 100 is constructed on the top of the embankment. The pavement structure 100 includes an upper permeable structure 110 and a lower impermeable structure 120 stacked from top to bottom, which not only ensures that the pavement is replenished with water when it rains, but also prevents rainwater from seeping into the soil layer of the embankment. In addition, the upper surface of the pavement structure 100 is inclined from the center of the road to both sides, so that the water on the pavement structure 100 is discharged in both directions, avoiding the accumulation of rainwater on the pavement structure 100 and accelerating the discharge of rainwater.

[0041] The wave-breaking wall 200 is constructed on the top of the embankment and is located outside the pavement structure 100 .

[0042] The wave-breaking wall 200 is an L-shaped structure, which includes a wave-breaking bottom plate 210 and a wave-breaking wall body 220 constructed on the wave-breaking bottom plate 210. The wave-breaking bottom plate 210 adopts a reinforced concrete structure, and the wave-breaking wall body 220 adopts a reinforced concrete structure or a mortar-laid block stone structure. The wave-breaking wall body 220 mainly plays the role of blocking waves and blocking the soil of the embankment body.

[0043] A plurality of drainage short pipes 230 penetrating the wave-breaking wall 210 are arranged at intervals in the lower part of the wave-breaking wall 210 along the axial direction of the embankment. The drainage short pipes 230 are arranged inclined, that is, the inside is high and the outside is low. The distance between two adjacent drainage short pipes 230 is 1.5m to 4m. The drainage short pipes 230 are made of PVC pipes or other pipes. The hole top elevation of the drainage short pipe 230, that is, the water inlet end of the drainage short pipe 230 is flush with the top of the water collection layer 330 of the green belt 300, so that excess rainwater in the water collection layer 330 is discharged to ensure that the plants in the green belt are not flooded.

[0044] The green belt 300 is constructed on the inner side of the wave-breaking wall 200. Specifically, the green belt 300 is constructed on the wave-breaking bottom plate 210 and is located between the wave-breaking wall body 220 and the pavement structure 100. The green belt 300 includes a planting soil layer 310, a geotextile layer 320 and a water collection layer 330 stacked from top to bottom, and green plants 340 are planted on the planting soil layer 310.

[0045] In order to allow rainwater on the road surface to penetrate smoothly into the water-collecting layer 330, a permeable body 350 is arranged on the geotextile layer 320 between the planting soil layer 310 and the shoulder 400. The width of the permeable body 350 is 0.1m~0.2m. The permeable body 350 includes a small gravel layer, a coarse sand layer and a fine sand layer stacked from top to bottom, ensuring that rainwater on the road surface can penetrate smoothly into the water-collecting layer 330 and the soil itself will not be lost into the water-collecting layer 330.

[0046] The water collection layer 330 uses a filling material with a relatively large porosity, such as single-graded crushed stone, etc., which can accumulate a certain amount of rainwater, that is, provide water to the green plants 340 on the green belt 300 through capillary action. In addition, a side 321 of the geotextile layer 320 close to the wave-breaking wall body 220 is folded downward and extends between the water collection layer 330 and the wave-breaking wall body 220, so as to separate the water collection layer 330 from the drainage short pipe 230 to prevent the soil behind the wall from being lost.

[0047] The shoulder 400 is arranged on the wave-breaking base plate 210 and between the pavement structure 100 and the green belt 300. The shoulder 400 and the wave-breaking base plate 210 are integrally cast on site, or the shoulder 400 is prefabricated and then installed on the wave-breaking base plate 210. A plurality of drainage grooves 410 are arranged at intervals along the axial direction of the embankment on the top surface of the shoulder 400, so that the top surface of the shoulder 410 is arranged in a high and low staggered zigzag shape, so that rainwater on the road surface penetrates into the water collection layer 330 from the upper part of the drainage groove 410 (low shoulder) through the permeable body 350, and the high shoulder 420 prevents vehicles from entering the green belt 300, such as Figure 3 shown.

[0048] The water storage device 500 is located below the pavement structure 100 and adjacent to the shoulder 400. It is used to store rainwater on the top of the embankment and supply water to the green belt 300. The water storage device 500 includes a water storage pipe 510 and a plurality of thin connecting pipes 520. The water storage pipe 510 is arranged on the wave-breaking base plate 210 and extends along the axis of the embankment and is located below the pavement structure 100 and inside the shoulder 400. The plurality of thin connecting pipes 520 are arranged at intervals along the axis of the embankment. One end of each thin connecting pipe 520 is connected to the water storage pipe 510, and the other end thereof passes through the shoulder 400 and is connected to the water collection layer 330. When it rains, the excess rainwater in the water collection layer 330 flows into the water storage pipe 510 through the thin connecting pipe 520 for storage. When the water in the water collection layer 330 is lost, the water stored in the water storage pipe 510 flows into the water collection layer 330 through the thin connecting pipe 520 under the action of gravity for compensation.

[0049] The construction method of the seawall top ecological transformation structure of the present invention comprises the following steps:

[0050] Step S1, dismantling the original seawall and road surface structure on the top of the seawall;

[0051] Step S2, casting the wave-breaking wall 200 outside the embankment top according to the design requirements, and pre-burying the short drainage pipe 230 in the wave-breaking wall 200;

[0052] Step S3, burying a water storage device 500 at a position below the pavement structure 100 and adjacent to the road shoulder 400;

[0053] Step S4, constructing a green belt 300 on the inner side of the wave-breaking wall 200, that is, laying a water collection layer 330, a geotextile layer 320, a permeable body 350 and a planting soil layer 310 in sequence, and planting green plants 340 on the planting soil layer 310;

[0054] Step S5, constructing a shoulder 400 inside the wave-breaking wall 200 and between the pavement structure 100 and the green belt 300;

[0055] Step S6: laying the pavement structure 100 on the top of the embankment.

[0056] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A seawall top ecological transformation structure, characterized in that: include: A road surface structure built on top of an embankment; A wave-breaking wall constructed on the top of the embankment and located outside the pavement structure; A green belt constructed on the inner side of the wave-breaking wall; A shoulder disposed inside the wave-breaking wall and between the road surface structure and the green belt; as well as A water storage device located below the pavement structure and adjacent to the road shoulder is used to accumulate rainwater on the top of the embankment and supply water to the green belt.

2. The seawall crest ecological transformation structure according to claim 1, characterized in that: The pavement structure comprises an upper water-permeable structure and a lower water-impermeable structure which are stacked from top to bottom.

3. The seawall crest ecological transformation structure according to claim 2, characterized in that: The upper surface of the pavement structure is inclined from the center of the road toward both sides, so that the water on the pavement structure is discharged toward both sides.

4. The seawall crest ecological transformation structure according to claim 1, characterized in that: The wave-breaking wall comprises a wave-breaking bottom plate and a wave-breaking wall body constructed on the wave-breaking bottom plate. A plurality of short drainage pipes penetrating the wave-breaking wall body are arranged at intervals in the lower part of the wave-breaking wall body along the axial direction of the dike.

5. The seawall crest ecological transformation structure according to claim 4, characterized in that: The short drainage pipes are arranged obliquely, and the distance between two adjacent short drainage pipes is 1.5m to 4m.

6. The seawall crest ecological transformation structure according to claim 4, characterized in that: The green belt is constructed on the wave-breaking bottom plate and is located between the wave-breaking wall and the road surface structure. The green belt includes a planting soil layer, a geotextile layer and a water-collecting layer stacked from top to bottom, and green plants are planted on the planting soil layer.

7. The seawall crest ecological transformation structure according to claim 6, characterized in that: A water-permeable body is arranged on the geotextile layer and between the planting soil layer and the road shoulder.

8. The seawall crest ecological transformation structure according to claim 7, characterized in that: The permeable body comprises a small gravel layer, a coarse sand layer and a fine sand layer which are sequentially stacked from top to bottom.

9. The seawall crest ecological transformation structure according to claim 6, characterized in that: The water-collecting layer is filled with a material having a relatively large porosity, the water inlet end of the drainage short pipe is flush with the top of the water-collecting layer, and the geotextile layer is folded downward on one side close to the wave-breaking wall body and extends between the water-collecting layer and the wave-breaking wall body, so as to separate the water-collecting layer from the drainage short pipe.

10. The seawall crest ecological transformation structure according to claim 4, characterized in that: The road shoulder is arranged on the wave-breaking base plate and is located between the green belt and the road surface structure. The road shoulder and the wave-breaking base plate are integrally cast on site or prefabricated and then installed on the wave-breaking base plate.

11. The seawall crest ecological transformation structure according to claim 10, characterized in that: A plurality of drainage grooves are arranged on the top surface of the shoulder at intervals along the axial direction of the embankment, so that the top surface of the shoulder is arranged in a staggered zigzag shape with high and low levels.

12. The seawall crest ecological transformation structure according to claim 4, characterized in that: The water storage device includes a water storage pipe and a plurality of thin connecting pipes. The water storage pipe is arranged on the wave-breaking base plate and extends along the axis direction of the embankment and is located below the pavement structure and on the inner side of the shoulder. The plurality of thin connecting pipes are arranged at intervals along the axis direction of the embankment. One end of each thin connecting pipe is connected to the water storage pipe, and the other end thereof passes through the shoulder and is connected to the water collecting layer.

13. A construction method for the ecological transformation structure of a seawall crest as claimed in any one of claims 1 to 12, characterized in that: The following steps are involved: Step S1, dismantling the original seawall and road surface structure on the top of the seawall; Step S2, casting the wave-breaking wall outside the embankment top according to the design requirements, and pre-burying the short drainage pipe in the wave-breaking wall; Step S3, burying a water storage device at a position below the pavement structure and close to the road shoulder; Step S4, constructing a green belt on the inner side of the wave-breaking wall; Step S5, constructing a shoulder on the inner side of the wave-breaking wall and between the road surface structure and the green belt; Step S6, laying a road surface structure on the top of the embankment.

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