CN115897481A - River channel structure of water conservancy project of city-surrounding water system and construction method - Google Patents

Abstract

The invention discloses a river channel structure of a city-around water system hydraulic engineering, which comprises a river channel bottom structure, an aquatic plant area, a hydrophilic footpath, a gravity retaining wall and a terrestrial plant area; the aquatic plant area extends obliquely upwards from the bottom structure of the river channel to form a river channel slope surface and comprises a blocking net, reinforcing ribs, a gabion and aquatic plant planting soil, wherein the blocking net is arranged in the aquatic plant planting soil, and the reinforcing ribs are fixedly connected below the blocking net; the gravity retaining wall comprises a retaining wall main body, an occlusion component and a retaining wall reinforcing rib, the hydrophilic footpath is provided with an occlusion groove, and the occlusion component is arranged in the occlusion groove; the terrestrial plant area comprises terrestrial plant planting soil paved on one side of the retaining wall main body, which is far away from the river slope; the invention also discloses a construction method of the river channel structure. The invention fully utilizes the solidification characteristic of the root development of the aquatic plants and the terrestrial plants on the river channel structure, ensures the stability of the river channel structure, prolongs the service life of the river channel structure, and considers the leisure demand of citizens and the ecological function of the river channel.

Description

River channel structure of water conservancy project of city-surrounding water system and construction method

Technical Field

The invention relates to the technical field of water conservancy facilities, in particular to a river channel structure of a water conservancy project of an annular city water system and a construction method.

Background

Current river course is mostly single drainage flood river course or city leisure view river course, because drainage flood river course is different with the design objective in leisure river course, and two aspects function is difficult to compromise to general structure, consequently has not seen the river course structure of the different functions of interval yet.

The green plant of current river course is mostly planted for the view, fails to make full use of the plant to the reinforcing ability of soil, and the excessive development of plant can destroy the river course structure moreover, leads to the stability of river course structure to reduce, shortens the service life of river course structure. The existing river channel structure cannot be combined with plants for utilization, and the plants cannot fully exert the function of the river channel structure.

Disclosure of Invention

The invention provides a river channel structure of a city-surrounding water system hydraulic engineering and a construction method, which aim to overcome the technical problems.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a river channel construction structure of a city-around water system hydraulic engineering comprises a river channel bottom structure, and an aquatic plant area, a hydrophilic footpath, a gravity retaining wall and a terrestrial plant area which are sequentially arranged from the river channel structure to two sides;

the aquatic plant area extends obliquely upwards from the bottom structure of the river channel to form a river channel slope; the aquatic plant area comprises a blocking net, reinforcing ribs, a gabion and aquatic plant planting soil paved on the gabion, the blocking net is arranged in the aquatic plant planting soil, and the reinforcing ribs are fixedly connected below the blocking net, penetrate through the gabion and extend below the gabion;

the gravity retaining wall comprises a retaining wall main body, an occlusion component and retaining wall reinforcing ribs, wherein the hydrophilic footpath is provided with an occlusion groove, the occlusion component is arranged in the occlusion groove, the lower part of the retaining wall main body is arranged in the occlusion component, one end of each retaining wall reinforcing rib extends into the lower part of the retaining wall main body and is fixedly connected with the retaining wall main body, and the other end of each retaining wall reinforcing rib penetrates through the occlusion component and is abutted to the hydrophilic footpath;

the land plant area comprises land plant planting soil, and the land plant planting soil is paved on one side of the retaining wall main body far away from the river channel slope surface.

Furthermore, the method comprises self-stacking retaining stones, wherein the self-stacking retaining stones are arranged at the slope bottom of the river channel slope.

Further, terrestrial plant district includes first terrestrial plant district and second terrestrial plant district, terrestrial plant planting soil has all been laid in first terrestrial plant district and second terrestrial plant district, first terrestrial plant district includes rubble basis and breather pipe, breather pipe one end is located in the rubble basis, the other end is located in the terrestrial plant planting soil, second terrestrial plant district is located first terrestrial plant district is kept away from one side of hydrophilic pavement.

Further, still include the water conservancy diversion pipeline, the one end of water conservancy diversion pipeline is located in the barricade main part, and be higher than hydrophilic pavement upper surface, the other end of water conservancy diversion pipeline reduces gradually and communicates with main drainage pipe.

Further, hydrophilic pavement includes from the rubble gradation bedding course, no sand concrete layer, the mortar layer of dry and hard and the brick layer that permeates water of the concrete that upwards sets gradually down, rubble gradation bedding course both sides are equipped with C15 concrete layer, be equipped with granite curb on the C15 concrete layer, barricade strengthening rib butt in on the granite curb.

Further, the retaining wall main body inclines towards the terrestrial plant area, the surface of the first terrestrial plant area is an inclined surface, and the angle between the retaining wall main body and the first terrestrial plant area is 100-150 degrees;

the barricade main part includes first wall body and second wall body, first wall body is close to hydrophilic pavement, the second wall body is close to first terrestrial plant district, first wall body is built by laying bricks or stones the concrete and is formed, the second wall body is built by laying bricks or stones the concrete and forms for C30.

Further, still including locating the shore highway that river course one side was kept away from in terrestrial plant district, the shore highway includes from the cement that upwards sets gradually down stabilizes the metalling, passes through the oil reservoir, the oil adhesion layer, gradation asphalt concrete layer and fog seal preliminary maintenance layer, terrestrial plant district with be equipped with highway C15 concrete layer and granite curb between the metalling, the below of granite curb with be close to terrestrial plant district one side all is equipped with highway C15 concrete layer, the granite curb passes through cement mortar fixedly.

The river channel water-proof layer is arranged below the river channel bottom structure, the aquatic plant area, the hydrophilic footpath and the gravity retaining wall, and a plain soil solid layer is arranged below the river channel water-proof layer;

the river course waterproof layer includes from upwards setting gradually asphalt felt, waterproof concrete and the waterproof blanket of sodium-based bentonite down, the asphalt felt edge upwards turns over the book extremely the waterproof blanket top of sodium-based bentonite, and turns over to the river course center and the compaction.

A river channel construction method of a water conservancy project of an annular city water system comprises the following steps:

s1, paving a river channel bottom structure;

s2, laying the aquatic plant areas on two sides of the bottom structure of the river channel, wherein the aquatic plant areas extend obliquely upwards from the bottom structure of the river channel to form a river channel slope;

s3, paving the hydrophilic footpath at the top of the river slope;

s4, arranging the gravity retaining wall;

s5, paving the terrestrial plant area, wherein the terrestrial plant area comprises a first terrestrial plant area and a second terrestrial plant area, and the first terrestrial plant area extends obliquely upwards from the gravity retaining wall to form a bank slope surface;

and S6, paving a riverside highway on the slope top of the river bank slope.

Further:

the step S1 comprises the following steps: sequentially arranging a felt, waterproof concrete and a sodium bentonite waterproof blanket from bottom to top to form a river channel waterproof layer, arranging clay on the river channel waterproof layer, compacting and compacting the clay, prefabricating a wavy pressure tank on the surface of the clay, and paving cobblestones on the upper surface of the wavy pressure tank in a dry mode;

the step S2 comprises the following steps: paving graded broken stone clay, and compacting by a road roller; placing self-stacking retaining stones, wherein the self-stacking retaining stones are fixed above the graded broken stone clay under the action of gravity and abut against the bottom structure of the river channel; placing a gabion, installing reinforcing ribs in the gabion, installing a blocking net on the gabion, and paving aquatic plant planting soil;

the step S3 comprises the following steps: the construction method comprises the following steps that a gravel graded cushion layer, a sand-free concrete layer, a dry hard mortar layer and a concrete permeable brick layer are sequentially arranged from bottom to top, C15 concrete layers are arranged on two sides of the gravel graded cushion layer, and granite curbstones are paved on the C15 concrete layers;

step S4 comprises the following steps: the lower end of the retaining wall main body is arranged in an occlusion component which is arranged in an occlusion groove at the upper side of the hydrophilic footpath; the diversion pipeline 7 is arranged in the retaining wall main body 41, and the diversion pipeline 7 is communicated with the main drainage pipeline 8;

the step S5 comprises the following steps: paving a gravel foundation at the bottom of the first land plant area, then burying the vent pipe in the gravel foundation, and covering land plant planting soil on the gravel foundation and the second land plant area;

step S6 comprises: from upwards setting gradually cement stabilization gravel layer down, passing through the oil reservoir, glue oil reservoir, gradation asphalt concrete layer and fog seal the sheath of cultivating in advance, set up C15 concrete layer and granite curb between terrestrial plant district and the cement stabilization gravel layer, the below of granite curb is with being close to terrestrial plant district one side all sets up C15 concrete layer, granite curb uses cement mortar fixed.

Compared with the river channel structure and the construction method of the existing water system hydraulic engineering, the invention has the beneficial effects that:

(1) The retaining wall main body and the occlusion component disclosed by the invention can realize effective dredging of lateral pressure on one side of an aquatic plant area connected with a gravity retaining wall structure, the occlusion component is arranged in an occlusion groove of a hydrophilic footpath, and the occlusion component transmits the lateral pressure on the retaining wall main body, so that the damage of the lateral pressure generated by the aquatic plant area to the hydrophilic footpath on the other side of the gravity retaining wall structure is reduced, and the stability of a river channel structure is enhanced;

(2) The aquatic plant area and the terrestrial plant area can provide a stable growing environment for aquatic plants and terrestrial plants, provide sufficient space for the growth of the aquatic plants and the terrestrial plants, fully utilize the solidification characteristic of the root development of the aquatic plants and the terrestrial plants on the structure of the river channel, and realize the function of improving the stability of the structure of the river channel; the space range of plant growth can be limited in the plant aquatic plant area and the land plant area, and the overgrowth of plants and the damage to the river channel structure are avoided;

(3) The blocking net, the reinforcing ribs and the gabion in the structure can maintain the stability of aquatic plant planting soil and ensure that terrestrial plants flourish and grow, so that the stability of a river channel side slope is reinforced;

(4) The stability of river channel structure has been guaranteed to this river channel structure to prolonged river channel structure service life, compromise the ecological function of river channel when satisfying urban afforestation and citizen's leisure demand.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an overall schematic view of a river structure of a city water system hydraulic engineering disclosed in an embodiment of the invention;

fig. 2 is a schematic view of a river channel bottom structure of a river channel structure of a city-around water system hydraulic engineering, disclosed in an embodiment of the present invention;

FIG. 3 is a schematic diagram of an aquatic plant area of a river structure of a city water hydraulic engineering according to an embodiment of the present invention;

FIG. 4 is an enlarged view of an aquatic plant area in a river structure of a great wall water conservancy project, which is disclosed in an embodiment of the invention;

fig. 5 is a schematic view of a gravity retaining wall structure of a river channel structure of a city-surrounding water system hydraulic engineering according to an embodiment of the present invention;

fig. 6 is a first schematic structural view of a retaining wall main body of a river structure of a city-surrounding water hydraulic engineering according to an embodiment of the present invention;

fig. 7 is a schematic view of a main structure of a retaining wall of a river structure of a city-surrounding water hydraulic engineering according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a river structure engaging member of a hydraulic engineering of an annulated water system disclosed in an embodiment of the present invention;

fig. 9 is a schematic structural view of a channel structure hydrophilic walkway of a hydraulic engineering of a city-around water system disclosed in the embodiment of the present invention;

fig. 10 is a schematic structural view of a terrestrial plant area of a river channel structure of a city-around water system hydraulic engineering, which is disclosed in an embodiment of the invention;

fig. 11 is a schematic view of a river channel waterproof layer of a river channel structure of a city-around water system hydraulic engineering according to an embodiment of the present invention;

fig. 12 is an enlarged view of a river channel waterproof layer structure of a river channel structure of a city-around water system hydraulic engineering, disclosed in the embodiment of the invention;

fig. 13 is a schematic structural view of a riverway structure riverway road of the city-surrounding water system hydraulic engineering, which is disclosed in the embodiment of the invention.

In the figure: 1. a river channel bottom structure; 111. paving cobbles in a dry way; 112. solid clay; 113. a wave-shaped pressure groove; 2. an aquatic plant area; 21. river slope; 22. blocking a net; 23. reinforcing ribs; 24. a gabion; 25. planting soil for aquatic plants; 26. graded crushed stone clay; 3. a hydrophilic walkway; 31. an occlusion groove; 32. a graded bedding course of crushed stones; 33. a sand-free concrete layer; 34. a hard mortar layer; 35. a concrete permeable brick layer; 36. c15 concrete layer; 37. granite curb; 4. a gravity retaining wall; 41. a retaining wall main body; 411. a first wall; 412. a second wall; 42. an engaging member; 43. retaining wall reinforcing ribs; 5. a terrestrial plant region; 51. planting soil for terrestrial plants; 52. a first terrestrial plant region; 53. a second terrestrial plant region; 521. breaking a stone foundation; 522. a breather pipe; 6. self-stacking of masonry; 7. a diversion pipeline; 8. a main drainage pipeline; 9. a riverside road; 91. a cement stabilized rubble layer; 92. penetrating an oil layer; 93. sticking an oil layer; 94. grading an asphalt concrete layer; 95. atomizing and sealing a precuring layer; 96. highway granite curb; 97. cement mortar; 10. a river channel waterproof layer; 101. a felt; 102. waterproof concrete; 103. a sodium bentonite waterproof blanket; 11. a plain soil hard layer; 12. water line; 13. river bank slope.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

the embodiment provides a river course construction structure of city water system hydraulic engineering, as shown in fig. 1, includes: the device comprises a riverway bottom structure 1, and an aquatic plant area 2, a hydrophilic footpath 3, a gravity retaining wall 4 and a terrestrial plant area 5 which are sequentially arranged from the riverway structure to two sides;

as shown in fig. 3 and 4, the aquatic plant area 2 extends obliquely upward from the river bottom structure 1 to form a river slope 21; the aquatic plant area 2 comprises a blocking net 22, reinforcing ribs 23, a gabion 24 and aquatic plant planting soil 25 paved on the gabion 24, the blocking net is arranged in the aquatic plant planting soil 25, and the reinforcing ribs 23 are fixedly connected below the blocking net 22, penetrate through the gabion 24 and extend below the gabion 24;

as shown in fig. 8, the gravity retaining wall 4 comprises a retaining wall main body 41, an engagement member 42 and retaining wall reinforcing ribs 43, the hydrophilic walkway 3 has an engagement groove 31, the engagement member 42 is disposed in the engagement groove 31, the lower portion of the retaining wall main body 41 is disposed in the engagement member 42, one end of each retaining wall reinforcing rib 43 extends into the lower portion of the retaining wall main body 41 and is fixedly connected with the retaining wall main body 41, and the other end of each retaining wall reinforcing rib 43 passes through the engagement member 42 and abuts against the hydrophilic walkway 3;

terrestrial plant district 5 includes terrestrial plant planting soil 51, terrestrial plant planting soil 51 lays in the barricade main part 41 is kept away from one side of river course domatic 21.

As shown in fig. 2, the river bottom structure 1 includes a solid clay 112 filled in the bottom, a wave-shaped ballast 113 provided on the upper surface of the solid clay 112, and dry-laid cobblestones 111 above the wave-shaped ballast 113; the wavy ballast 113 can increase the fixing effect of the compacted clay 112 to the dry-laid cobblestones 111. The dry-laid cobblestones 111 are piled on the wavy pressure grooves 113 and fixed through gravity without extra measures, and the fixing mode of the wavy pressure grooves 113 and the dry-laid cobblestones 111 is only suitable for municipal water conservancy projects mainly based on landscape effects and cannot be suitable for river channel structures mainly based on flood discharge functions. Graded broken stone clay 26 is laid below the gabion 24, the inner part of the gabion 24 is broken stone, the outer part of the gabion 24 is a reinforcement cage formed by welding reinforcement meshes, and the structure is large in self weight and extremely strong in integrity and is not prone to deformation or down-flow under the lasting impact of river water. Moreover, the setting up of rubble makes gabion 24 is not compact structure, and inside hole can provide required space for aquatic animal and plant's root system growth, gabion 24 provides good growing environment for aquatic plant, does benefit to a large amount of growth reproduction of aquatic plant root system to overall structure stabilizes. 24 internally mounted of gabion has reinforcing rib 23, reinforcing rib 23 is turning steel bar structure, reinforcing rib 23 lower part is equipped with the turning, just the one end at turning is to keeping away from 3 lopsidedness of hydrophilic pavement, and its lower part is crooked can strengthen gabion 24's side direction cling compound power has strengthened gabion 24's stability to the growing environment material to aquatic plant has been consolidated, and then has guaranteed the steadiness of river course structure. Block 22 is the steel structure, block 22 weld in 23 upper portions of reinforcement muscle, can effectively block the structure aquatic plant plants 25 initial stage side direction landing of soil, guarantees the stability of aquatic plant plants soil 1 is for growing in aquatic plant in the aquatic plant plants soil 1 provides stable growing environment, does benefit to aquatic plant's growth. When the aquatic plants in the aquatic plant planting soil 25 are planted successfully, the roots of the aquatic plants extend downwards to penetrate through the aquatic plant planting soil 25 and the gabion 24, even the roots of the aquatic plants are rooted to enter the graded broken stone clay 26, and in the long-term operation process of the riverway, the aquatic plant area 2 forms a firm whole through the action of the aquatic plants. The gravity retaining wall 4 gives full play to the position characteristics of each part, and realizes effective dredging of lateral pressure, the retaining wall main body 41 is arranged in the occlusion member 42, the upper surface of the occlusion member 42 is in a non-planar design, namely, the surface of the joint of the occlusion member 42 and the retaining wall main body 41 is respectively inclined downwards all around, and floaters and garbage in a river are not easy to accumulate on the surface of the occlusion member 42. The upper surface of the snap member 42 may also be provided as a tapered surface to reduce the accumulation of floating material on the snap member 42. The engaging member 42 is installed in the engaging groove 31 on the upper side of the hydrophilic walkway 3, and the upper surface of the engaging member 42 is slightly higher than the hydrophilic walkway 3. The interlock component 42 with the interlock of hydrophilic pavement 3, barricade strengthening rib 43 butt in the side of hydrophilic pavement 3, barricade strengthening rib 3 can transmit and share the lateral pressure that barricade main part 41 received, guarantee the stability of barricade main part 1 structure. The aquatic plant area can provide a stable growing environment for aquatic plants, provide sufficient space for the growth of the aquatic plants, fully utilize the solidification characteristics of the aquatic plants and the terrestrial plant root development on the riverway structure, and realize the function of improving the stability of the riverway structure; the blocking net, the reinforcing ribs and the gabion in the structure can maintain the stability of aquatic plant planting soil and ensure that terrestrial plants flourish and grow, so that the stability of a river channel side slope is reinforced; the stability of river course structure has been guaranteed to this river course structure to river course structure service life has been prolonged. Satisfy urban afforestation and citizen leisure demand and compromise the ecological function of river course simultaneously.

Preferably, as shown in fig. 1 and 3, the self-stacking retaining stone 6 is included, and the self-stacking retaining stone 6 is arranged at the bottom of the river slope 21. From piling up stone blocking 6 and being fixed in under the action of gravity hierarchical rubble clay 26 top, one side rely on in river course substructure 1, from piling up stone blocking 6 opposite side with gabion 24 reaches aquatic plant plants soil 25 butt, because the sloping of river course slope sets up, gabion 24 aquatic plant plants soil 25 and produces the sideslip power, sets up hierarchical rubble clay 26 can block gabion 24 aquatic plant plants soil 25's side direction landing extremely river course substructure 1 is regional. The stability of the gabion 24 and the aquatic plant planting soil 25 is guaranteed, and the stability of the growth environment of the aquatic plants is also guaranteed.

Preferably, as shown in fig. 10, the land plant area 5 includes a first land plant area 52 and a second land plant area 53, the land plant planting soil 51 is paved on each of the first land plant area 52 and the second land plant area 53, the first land plant area 52 includes a gravel foundation 521 and a ventilation pipe 522, one end of the ventilation pipe 522 is installed in the gravel foundation 521, the other end of the ventilation pipe is installed in the land plant planting soil 51, and the second land plant area 53 is installed on the side of the first land plant area 52 away from the hydrophilic pavement 3. The first terrestrial plant area 52 can utilize the position space of the gravity retaining wall 4 and the second terrestrial plant area 53 to breed terrestrial plants, so as to achieve the purpose of improving the ecological environment of the river channel side slope; trees can be planted above the second terrestrial plant area 53, the landscape function of beautifying the environment can be realized, the effect of purifying the air environment can be realized, meanwhile, the root system of terrestrial plants is continuously dense and abundant along with the growth of terrestrial plants, and the shore river road 9 and the terrestrial plant area 5 can be realized. The rubble basis 521 compaction degree of dune is greater than 0.93, breather pipe 522 is 25 ~ 40 mm's in diameter PVC (Polyvinylchlorid) polyvinyl chloride pipeline, breather pipe 522 can be for the root system development of terrestrial plant in the terrestrial plant planting soil 51 provides the passageway, along with terrestrial plant's growth in the terrestrial plant planting soil 51, the terrestrial plant root system is flourishing gradually, and terrestrial plant's root system will pass breather pipe 522 extremely the dune solid layer of plain soil 11 to play the effect of reinforcing the structure in terrestrial plant district 5.

Preferably, as shown in fig. 7, the retaining wall further comprises a diversion pipeline 7, one end of the diversion pipeline 7 is arranged in the retaining wall main body 41 and is higher than the upper surface of the hydrophilic footpath 3, and the other end of the diversion pipeline 7 is gradually lowered and communicated with the main drainage pipeline 8. The height of burying underground of diversion pipeline 7 depends on river surface control elevation, when the rivers normal water flow is great, in time with the water in the river course through diversion pipeline 7 refluence is discharged to main drainage pipeline 8 to realize flood control and flood fighting.

Preferably, as shown in fig. 9, the hydrophilic footpath 3 includes a gravel graded cushion layer 32, a sand-free concrete layer 33, a dry and hard mortar layer 34 and a concrete permeable brick layer 35 which are sequentially arranged from bottom to top, the C15 concrete layers 36 are arranged on two sides of the gravel graded cushion layer 32, granite curb 37 is arranged on the C15 concrete layers 36, and the retaining wall reinforcing ribs 43 abut against the granite curb 37. The C15 concrete layer 36 and the granite curb 37 are arranged at positions capable of providing supporting force for the gravel graded cushion layer 32, the sand-free concrete layer 33, the dry and hard mortar layer 34 and the concrete permeable brick layer 35 to achieve a stabilizing effect; the various hierarchical structures of the hydrophilic footpath 3 are bonded through concrete, so that the hydrophilic footpath 3 can be kept stable under a long-term soaking condition, the structures are not easy to be staggered, and the whole structure is not easy to deform. The pedestrian is in leisure is vwatched when walking on the hydrophilic pavement 3, hydrophilic pavement 3 has realized taking into account of river course function and vwatching function.

Preferably, as shown in fig. 5 and 6, the retaining wall body 41 is inclined towards the terrestrial plant area 5, the surface of the first terrestrial plant area 52 is an inclined surface, and the angle between the retaining wall body 41 and the first terrestrial plant area 52 is 100 ° to 150 °;

the retaining wall body 41 comprises a first wall body 411 and a second wall body 412, the first wall body 411 is close to the hydrophilic footpath 3, the second wall body 412 is close to the first terrestrial plant area 52, the first wall body 411 is formed by building broken stone concrete, and the second wall body 412 is formed by building C30 concrete. The angle range between the retaining wall main body 41 and the first terrestrial plant area 52 enables the retaining wall main body 41 to exert the maximum supporting effect; first wall body 411 adopts garrulous stone concrete, the design that second wall body 412 adopted C30 concrete can make retaining wall main part 41 with land plant district 2 contacts one side has sufficient intensity, can block land plant planting soil 51 with lateral pressure that the rubble basis 521 transmitted and came over has guaranteed simultaneously that the gravity retaining wall 4 is close to the sufficient smoothness of water side surface, thereby guarantees retaining wall main part 41 structure can not appear the strength loss under the long-term infiltration of river, and then strengthens the steadiness of river course structure.

Preferably, the riverside highway 9 is arranged on one side, far away from a river, of the terrestrial plant area 5, as shown in fig. 13, the riverside highway 9 comprises a cement stabilizing gravel layer 91, an oil permeable layer 92, an oil adhesive layer 93, a graded asphalt concrete layer 94 and a fog sealing pre-curing layer 95 which are sequentially arranged from bottom to top, a C15 concrete layer 36 and a highway granite curb 96 are arranged between the terrestrial plant area 5 and the cement stabilizing gravel layer 91, the C15 concrete layer 36 is arranged below the highway granite curb 96 and one side, close to the terrestrial plant area 5, of the highway granite curb 96, and the highway granite curb 96 is fixed through cement mortar 97. The riverside road 9 is a driving road on two sides of a river channel, and therefore needs to have certain structural strength. The shore river highway 9 is close to the river course river system, under the great condition of air humidity, adopts oil-sticking layer 93 with the mode that oil-permeable layer 92 combined together can be guaranteed the intensity and the stability on shore river highway 9 road surface, the both sides on road surface are located to highway granite curb 96, can ensure structure highway road surface with the rubble layer 31 structure is not to the both sides deformation collapse, maintains overall stability to the steadiness of river course structure has been ensured.

As shown in fig. 1, preferably, the artificial wetland system further comprises a river channel waterproof layer 10, wherein the river channel waterproof layer 10 is arranged below the river channel bottom structure 1, the aquatic plant area 2, the hydrophilic footpath 3 and the gravity retaining wall 4, and a plain soil dune solid layer 11 is arranged below the river channel waterproof layer 10;

as shown in fig. 11 and 12, the river course waterproof layer 10 includes a linoleum 101, a waterproof concrete 102, and a sodium-based bentonite waterproof blanket 103, which are sequentially arranged from bottom to top, an edge of the linoleum 101 is turned upward over the sodium-based bentonite waterproof blanket 103, and is turned over and compacted toward the center of the river course, the linoleum 101 is bonded to the inner side of the sodium-based bentonite waterproof blanket 103, an edge of the linoleum 101 is turned upward to wrap the waterproof concrete 102, so that a filling position and the same height of the waterproof concrete 102 are defined, and the arrangement of the sodium-based bentonite waterproof blanket 103 improves the waterproof performance of the river bottom; the asphalt felt 101 the waterproof concrete 102 with the waterproof blanket 103 of sodium-based bentonite form main river course lower part waterproof layer structure jointly, river course waterproof layer 10 can prevent effectively that river course water from permeating to in the dune solid layer 11 of plain soil to the steadiness of river course bottom has been guaranteed.

Preferably, the method comprises the following steps:

s1, paving a river channel bottom structure 1;

s2, laying the aquatic plant areas 2 on two sides of the river channel bottom structure 1, wherein the aquatic plant areas 2 extend obliquely upwards from the river channel bottom structure 1 to form a river channel slope 21;

s3, paving the hydrophilic footpath 3 at the top of the river slope 21;

s4, arranging the gravity retaining wall 4;

s5, paving the land plant area 5, wherein the land plant area 5 comprises a first land plant area 52 and a second land plant area 53, and the first land plant area 52 extends obliquely upwards from the gravity retaining wall 4 to form a bank slope 13;

and S6, paving a riparian road 9 on the slope top of the river bank slope surface 13.

Preferably, the following components:

the step S1 comprises the following steps: sequentially arranging a felt 101, waterproof concrete 102 and a sodium-based bentonite waterproof blanket 103 from bottom to top to form a river channel waterproof layer 10, arranging clay on the river channel waterproof layer 10, compacting and compacting the clay 112, prefabricating a wavy pressure groove 113 on the surface of the clay, and paving cobblestones 111 on the upper surface of the wavy pressure groove 113 in a dry mode;

the step S2 comprises the following steps: paving graded broken stone clay 26, and compacting by a road roller; placing a self-stacking retaining stone 6, wherein the self-stacking retaining stone 6 is fixed above the graded broken stone clay 26 under the action of gravity and is abutted against the river channel bottom structure 1; placing a gabion 24, installing reinforcing ribs 23 in the gabion 24, installing a blocking net 22 on the gabion 24, and paving aquatic plant planting soil 25;

the step S3 comprises the following steps: the gravel graded cushion layer 32, the sand-free concrete layer 33, the dry hard mortar layer 34 and the concrete permeable brick layer 35 are sequentially arranged from bottom to top, C15 concrete layers are arranged on two sides of the gravel graded cushion layer 32, and granite curbstones 37 are paved on the C15 concrete layers 36;

step S4 comprises the following steps: the lower end of the retaining wall main body 41 is arranged in an occlusion component 42, and the occlusion component 42 is arranged in an occlusion groove 31 at the upper side of the hydrophilic footpath 3; the diversion pipeline 7 is arranged in the retaining wall main body 41, and the diversion pipeline 7 is communicated with the main drainage pipeline 8;

step S5 comprises the following steps: paving a gravel foundation 521 at the bottom of the first land plant area 52, then burying a breather pipe 522 in the gravel foundation 521, and covering land plant planting soil 51 on the gravel foundation 521 and the second land plant area 53;

step S6 comprises: from upwards setting gradually cement stabilization gravel layer 91, oil-permeable layer 92, viscous oil layer 93, gradation asphalt concrete layer 94 and fog seal pre-curing layer 95 down, set up C15 concrete layer 36 and highway granite curb 96 between land living plant district and the cement stabilization gravel layer, the below of highway granite curb 96 with be close to 5 one sides in land living plant district all set up C15 concrete layer 36, highway granite curb 96 uses cement mortar 97 fixed. The riverside road 9 is a driving road on two sides of the river channel, and therefore needs to have certain structural strength.

The wavy ballast 113 can increase the fixing effect of the compacted clay 112 to the dry-laid cobblestones 111. The dry-laid cobblestones 111 are piled up on the wavy pressure grooves 113, and the dry-laid cobblestones are fixed by gravity without additional measures.

Graded broken stone clay 26 is laid to gabion 24 below, the inside rubble that is of gabion 24, the outside reinforcement cage that forms for the reinforcing bar net welding of being, this structure dead weight is great, and wholeness is extremely strong, is difficult for under the lasting impact of river deformation or following current and down. Moreover, the setting up of rubble makes gabion 24 is not compact structure, and inside hole can provide required space for aquatic animal and plant's root system growth, gabion 24 provides good growing environment for aquatic plant, does benefit to a large amount of growth reproduction of aquatic plant root system to overall structure stabilizes. 24 internally mounted of gabion has reinforcing rib 23, reinforcing rib 23 is turning steel bar structure, reinforcing rib 23 lower part is equipped with the turning, just the one end at turning is to keeping away from 3 lopsidedness of hydrophilic pavement, and its lower part is crooked can strengthen gabion 24's side direction cling compound power has strengthened gabion 24's stability to the growing environment material to aquatic plant has been consolidated, and then has guaranteed the steadiness of river course structure. The block 22 is the steel structure, the block 22 weld in 23 upper portions of reinforcement muscle can effectively block the structure aquatic plant plants soil 25 initial stage side direction landing, guarantees aquatic plant plants soil 1's stability, does benefit to aquatic plant's growth.

The C15 concrete layer 36 and the granite curb 37 are arranged at positions capable of providing supporting force for the gravel graded cushion layer 32, the sand-free concrete layer 33, the dry and hard mortar layer 34 and the concrete permeable brick layer 35 to achieve a stabilizing effect; the various hierarchical structures of the hydrophilic pavement 3 are bonded through concrete, so that the hydrophilic pavement 3 can be kept stable under the long-term soaking condition, the structures are not easy to be staggered, and the whole structure is not easy to deform. The pedestrian is in leisure is vwatched when walking on the hydrophilic pavement 3, hydrophilic pavement 3 has realized taking into account of river course function and vwatching function.

The height of burying underground of diversion pipeline 7 depends on river surface control elevation, when the rivers normal water flow is great, in time with the water in the river course through diversion pipeline 7 refluence is discharged to main drainage pipeline 8 to realize flood control and flood fighting. The position characteristics of each part of the gravity retaining wall 4 are fully exerted, effective dredging of lateral pressure is realized, the occlusion component 42 is occluded with the hydrophilic footpath 3, the retaining wall reinforcing ribs 43 are abutted to the side faces of the hydrophilic footpath 3, the retaining wall reinforcing ribs 3 can conduct and share the lateral pressure applied to the retaining wall main body 41, and the stability of the structure of the retaining wall main body 1 is ensured.

As the terrestrial plants grow in the terrestrial plant planting soil 51, the roots of the terrestrial plants gradually flourish, and the roots of the terrestrial plants penetrate through the ventilation pipe 522 to the vegetarian soil solid layer 11, so that the structure of the terrestrial plant area 5 is reinforced.

The shore river highway 9 is close to the river course river system, under the great condition of air humidity, adopts oil-sticking layer 93 with the mode that oil-permeable layer 92 combined together can be guaranteed the intensity and the stability on shore river highway 9 road surface, the both sides on road surface are located to highway granite curb 96, can ensure structure highway road surface with the rubble layer 31 structure is not to the both sides deformation collapse, maintains overall stability to the steadiness of river course structure has been ensured.

The specific implementation process comprises the following steps: firstly, paving the river channel bottom structure 1: the river bottom structure 1 is a part which is firstly constructed in the river construction process, the linoleum 101, the waterproof concrete 102 and the sodium-based bentonite waterproof blanket 103 are sequentially arranged from bottom to top to manufacture the river waterproof layer 10, then clay 112 is used for filling the river bottom, and then the river bottom is compacted and compacted, in the compacting process, the wave-shaped pressing grooves 113 are prefabricated on the clay surface, so that the fixing effect of the clay on the dry-laid cobblestones 111 laid on the wave-shaped pressing grooves 113 is increased, then the dry-laid cobblestones 111 are piled on the upper surface of the wave-shaped pressing grooves 113, the dry-laid cobblestones 111 and the wave-shaped pressing grooves 113 are fixed through gravity, and no additional measures are applied;

secondly, laying the aquatic plant areas 2 on two sides of the river channel bottom structure 1: firstly, paving the graded broken stone clay 26 and compacting by a road roller; then placing the self-stacking retaining stones 6, wherein the self-stacking retaining stones 6 are fixed above the graded broken stone clay 26 under the action of gravity, one side of each self-stacking retaining stone 6 depends on the bottom structure 1 of the river channel, then placing the gabions 24, pre-installing the reinforcing ribs 23 inside the gabions 24, then installing the blocking nets 22, and welding the blocking nets 22 on the upper parts of the reinforcing ribs 23;

thirdly, paving the hydrophilic footpath 3 on the slope top of the river slope 21: the gravel graded cushion layer 32, the sand-free concrete layer 33, the dry and hard mortar layer 34 and the concrete permeable brick layer 35 are sequentially arranged from bottom to top, C15 concrete layers 36 are arranged on two sides of the gravel graded cushion layer 32, granite curbs 37 are paved on the C15 concrete layers 36, and all the graded structures are bonded and fixed by concrete;

and step four, mounting the gravity retaining wall 4: the retaining wall main body 41 is arranged in the occlusion component 42, the occlusion component 42 is arranged in the occlusion groove 31 at the upper side of the hydrophilic footpath 3, so that the occlusion component 42 is occluded with the hydrophilic footpath 3; the diversion pipeline 7 is arranged in the retaining wall main body 41, and the diversion pipeline 7 is communicated with the main drainage pipeline 8;

fifthly, paving the land plant area 5: the terrestrial plant region 5 includes a first terrestrial plant region 52 and a second terrestrial plant region. Firstly, paving a gravel foundation 521 at the bottom, then embedding the ventilating pipe 522 in the gravel foundation 521, and finally covering the land plant planting soil 51 on the gravel foundation 521; the first terrestrial plant area 52 is inclined obliquely upward from the gravity retaining wall 4 to form a bank slope 13.

Sixthly, paving the riparian road 9 on the bank slope surface 13: from the bottom up sets gradually cement stabilization rubble layer 91, pass through the oil reservoir 92, the oil-binding layer 93, gradation asphalt concrete layer 94 and fog seals maintenance layer 95 in advance, terrestrial plant district 5 with set up between the cement stabilization rubble layer 91C 15 concrete layer 36 and highway granite curb 96, the below of highway granite curb 96 with be close to terrestrial plant district 5 one side all sets up C15 concrete layer 36, highway granite curb 96 uses cement mortar 97 fixed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a river course structure of ring city water hydraulic engineering which characterized in that includes: the river channel comprises a river channel bottom structure (1), and an aquatic plant area (2), a hydrophilic footpath (3), a gravity retaining wall (4) and a terrestrial plant area (5) which are sequentially arranged from the river channel structure to two sides;

the aquatic plant area (2) extends obliquely upwards from the river channel bottom structure (1) to form a river channel slope (21); the aquatic plant area (2) comprises a blocking net (22), reinforcing ribs (23), a gabion (24) and aquatic plant planting soil (25) paved on the gabion (24), the blocking net is arranged in the aquatic plant planting soil (25), and the reinforcing ribs (23) are fixedly connected below the blocking net (22), penetrate through the gabion (24) and extend below the gabion (24);

the gravity retaining wall (4) comprises a retaining wall main body (41), an engagement component (42) and retaining wall reinforcing ribs (43), the hydrophilic footpath (3) is provided with an engagement groove (31), the engagement component (42) is arranged in the engagement groove (31), the lower part of the retaining wall main body (41) is arranged in the engagement component (42), one end of each retaining wall reinforcing rib (43) extends into the lower part of the retaining wall main body (41) and is fixedly connected with the retaining wall main body (41), and the other end of each retaining wall reinforcing rib (43) penetrates through the engagement component (42) and abuts against the hydrophilic footpath (3);

land plant district (5) including land plant planting soil (51), land plant planting soil (51) are laid in barricade main part (41) is kept away from one side of river course domatic (21).

2. The riverway structure of a city-surrounding water system hydraulic engineering according to claim 1, which comprises self-stacking retaining stones (6), wherein the self-stacking retaining stones (6) are arranged at the bottom of the riverway slope (21).

3. The waterway structure of a city-surrounding water conservancy project according to claim 1, wherein the land plant area (5) includes a first land plant area (52) and a second land plant area (53), the first land plant area (52) and the second land plant area (53) are laid with land plant planting soil (51), the first land plant area (52) includes a gravel base (521) and a ventilation pipe (522), one end of the ventilation pipe (522) is disposed in the gravel base (521), the other end is disposed in the land plant planting soil (51), and the second land plant area (53) is disposed on a side of the first land plant area (52) away from the hydrophilic footpath (3).

4. The riverway structure of a city-surrounding water hydraulic engineering according to claim 1, further comprising a diversion pipeline (7), wherein one end of the diversion pipeline (7) is arranged in the retaining wall main body (41) and is higher than the upper surface of the hydrophilic footpath (3), and the other end of the diversion pipeline (7) is gradually lowered and communicated with the main drainage pipeline (8).

5. The riverway structure of a city-surrounding water hydraulic engineering according to claim 1, wherein the hydrophilic footpath (3) comprises a gravel graded cushion layer (32), a sand-free concrete layer (33), a dry hard mortar layer (34) and a concrete permeable brick layer (35) which are sequentially arranged from bottom to top, the C15 concrete layer (36) is arranged on two sides of the gravel graded cushion layer (32), granite curbs (37) are arranged on the C15 concrete layer (36), and the retaining wall reinforcing ribs (43) are abutted to the granite curbs (37).

6. The waterway structure of a city water system hydraulic engineering according to claim 3, wherein the retaining wall body (41) is inclined toward the land plant area (5), the surface of the first land plant area (52) is an inclined surface, and the angle between the retaining wall body (41) and the first land plant area (52) is 100 ° to 150 °;

the retaining wall main part (41) includes first wall body (411) and second wall body (412), first wall body (411) are close to hydrophilic pavement (3), second wall body (412) are close to first land plant district (52), first wall body (411) are built by laying bricks or stones for the rubble concrete and are formed, second wall body (412) are built by laying bricks or stones for C30 concrete and are formed.

7. The riverway structure of a city-surrounding water hydraulic engineering according to claim 1, further comprising a riverside road (9) arranged on one side of the terrestrial plant area (5) far away from the riverway, wherein the riverside road (9) comprises a cement-stabilized gravel layer (91), an oil-permeable layer (92), an oil-adhesive layer (93), a graded asphalt concrete layer (94) and a fog-sealing precuring layer (95) which are sequentially arranged from bottom to top, a C15 concrete layer (36) and a road granite curb (96) are arranged between the terrestrial plant area (5) and the cement-stabilized gravel layer (91), the C15 concrete layer (36) is arranged below the road granite curb (96) and on one side close to the terrestrial plant area (5), and the road granite curb (96) is fixed by cement mortar (97).

8. The riverway structure of the Anhuan water system hydraulic engineering according to claim 1, further comprising a riverway waterproof layer (10), wherein the riverway waterproof layer (10) is arranged below the riverway bottom structure (1), the aquatic plant area (2), the hydrophilic footpath (3) and the gravity retaining wall (4), and a plain soil dune layer (11) is arranged below the riverway waterproof layer (10);

river course waterproof layer (10) include from down upwards waterproof blanket of asphalt felt (101), waterproof concrete (102) and sodium bentonite (103) that set gradually, asphalt felt (101) edge upwards the roll-over extremely sodium bentonite waterproof blanket (103) top, and turn over to the river course center and roll over and the compaction.

9. A construction method of a waterway structure for the city-around water hydraulic engineering according to any one of claims 1 to 8, comprising the steps of:

s1, paving a river channel bottom structure (1);

s2, paving the aquatic plant areas (2) on two sides of the river channel bottom structure (1), wherein the aquatic plant areas (2) extend obliquely upwards from the river channel bottom structure (1) to form a river channel slope (21);

s3, paving the hydrophilic footpath (3) on the slope top of the river slope (21);

s4, arranging the gravity retaining wall (4);

s5, paving the land plant area (5), wherein the land plant area (5) comprises a first land plant area (52) and a second land plant area (53), and the first land plant area (52) extends obliquely upwards from the gravity retaining wall (4) to form a bank slope surface (13);

s6, paving a riparian road (9) on the slope top of the river bank slope surface (13).

10. The construction method of the waterway structure of the great-diameter water conservancy project according to claim 9, wherein:

the step S1 comprises the following steps: sequentially arranging a felt (101), waterproof concrete (102) and a sodium-based bentonite waterproof blanket (103) from bottom to top to form a river channel waterproof layer (10), arranging clay on the river channel waterproof layer (10), compacting and compacting the clay (112), prefabricating a wavy pressure groove (113) on the surface of the clay, and paving cobblestones (111) on the upper surface of the wavy pressure groove (113) in a dry mode;

the step S2 comprises the following steps: paving graded broken stone clay (26) and compacting by a road roller; placing a self-stacking retaining stone (6), wherein the self-stacking retaining stone (6) is fixed above the graded broken stone clay (26) under the action of gravity and is abutted against the bottom structure (1) of the river channel; placing a gabion (24), installing reinforcing ribs (23) in the gabion (24), installing a blocking net (22) on the gabion (24), and paving aquatic plant planting soil (25);

the step S3 comprises the following steps: the concrete water-permeable brick-type road pavement structure is characterized in that a gravel graded cushion layer (32), a sand-free concrete layer (33), a dry hard mortar layer (34) and a concrete water-permeable brick layer (35) are sequentially arranged from bottom to top, C15 concrete layers are arranged on two sides of the gravel graded cushion layer (32), and granite road curbstones (37) are laid on the C15 concrete layers (36);

step S4 comprises the following steps: the lower end of the retaining wall main body (41) is arranged in an occlusion component (42), and the occlusion component (42) is arranged in an occlusion groove (31) on the upper side of the hydrophilic footpath (3); arranging the diversion pipeline (7) in the retaining wall main body (41) and communicating the diversion pipeline (7) with the main drainage pipeline (8);

step S5 comprises the following steps: paving a gravel foundation (521) at the bottom of the first land plant area (52), then burying a vent pipe (522) in the gravel foundation (521), and covering land plant planting soil (51) on the gravel foundation (521) and the second land plant area (53);

step S6 comprises: from upwards setting gradually cement stabilization gravel layer (91), oil-permeable layer (92), viscous oil layer (93), gradation asphalt concrete layer (94) and fog seal maintenance layer (95) down, set up C15 concrete layer (36) and highway granite curb (96) between terrestrial plant district and the cement stabilization gravel layer, the below of highway granite curb (96) with be close to terrestrial plant district (5) one side all sets up C15 concrete layer (36), highway granite curb (96) use cement mortar (97) fixed.

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