CN219315623U - Rigid-flexible combined river ecological retaining wall structure - Google Patents

Abstract

The application discloses a river channel ecological retaining wall structure with rigid-flexible combination, wherein the river channel ecological retaining wall structure is arranged in a river channel; comprising the following steps: a rigid region and a flexible region; the rigid area is arranged on the near-water side wall of the river channel and/or on the bottom surface of the river channel; the flexible region is filled and arranged on the top surface, the near-water side wall or the back-water side wall of the rigid region. The flexible area is wrapped and arranged on the outer side wall of the rigid area and is close to the river channel. The rigid cantilever reinforced concrete retaining wall is combined with the flexible ecological pre-built block retaining wall, so that reliable support can be provided for high and steep side slopes of a river channel to avoid sliding of the river channel retaining wall, and stable and reliable support can be provided for plant field planting. On the basis of not influencing the width of the river channel and guaranteeing the basic functions of flood control, drainage and diversion of the river channel, the retaining wall can be reliably supported by the field planting plants in the river channel to form a landscape structure, so that the aesthetic feeling is improved, and the river channel water diversion device is particularly suitable for the conditions of meeting the high-steep side slope support requirements of the river channel and the ecological and landscape shoreline construction requirements.

Description

Rigid-flexible combined river ecological retaining wall structure

Technical Field

The application relates to the technical field of river management, in particular to a rigid-flexible combined ecological retaining wall structure for a river.

Background

The retaining wall structures used in the existing commonly used water areas can be divided into two main types, namely non-ecological retaining walls and ecological retaining walls. The non-ecological retaining wall can be subdivided into a reinforced concrete cantilever retaining wall and a slurry stone retaining wall, and the ecological retaining wall commonly seen in the market mainly comprises a gabion retaining wall, a Rong medal ecological brick retaining wall, a plant-growing pre-building block retaining wall and the like.

The non-ecological retaining wall is a rigid retaining wall, and the retaining wall has high structural stability, mature construction process and strong adaptability to the foundation, but has higher investment and poor landscape effect, and can not meet the requirement of forming a transitional rigid structure by plant field planting in river channels or intertidal zones.

The ecological retaining wall is a flexible retaining wall, is formed by assembling single units on a construction site, has good ecological environment friendliness, and can reserve space for plant growth, so that the protection effect of the retaining wall on soil is improved. The absence of retaining walls can result in collapse of the river channel at both sides or in the area of the intertidal zone, affecting structural stability. Meanwhile, in some soft soil areas, the existing river retaining wall structure is difficult to compensate for the problem of low foundation reliability, the problem of uneven settlement of the foundation exists, and river retaining wall sliding is easy to cause.

The periphery of a natural river is accompanied with a large amount of vegetation, and in the process of treating a river channel, the traditional retaining wall type tends to damage the vegetation environment around the river channel, so that the cost is relatively high, and the urban economy is adversely affected; although the novel retaining wall can ensure ecological stability and fully embody the effect of landscapes, the novel retaining wall has poor structural stability and can not solve the problems of stability and safety of complex slopes and bad foundations. When aiming at the engineering conditions of soft foundations such as high slopes and silt layers, the retaining wall form can not effectively, economically and rapidly solve the engineering problems of the high slopes and the soft foundations.

For example, CN201811536503.5 ecologically discloses a retaining wall structure in a river retaining wall, in order to realize the wave-proof effect, set up wave-proof landscape way in the outside of retaining wall, there is the condition of encroaching on the river course, and the retaining wall bottom is less with river course area of contact, is difficult to satisfy the support needs in soft soil area, is difficult to provide required field planting environment for vegetation simultaneously.

Disclosure of Invention

The application provides a river course ecological retaining wall structure that rigid and flexible combines for solve the current retaining wall structure that exists among the prior art and can not satisfy the building needs in weak soil area, can have the foundation reliability to reduce the back, the inhomogeneous settlement of foundation leads to the gliding technical problem of retaining wall.

The application provides a rigid-flexible combined river channel ecological retaining wall structure, which is arranged in a river channel; comprising the following steps: a rigid region and a flexible region; the rigid area is arranged on the near-water side wall of the river channel and/or on the bottom surface of the river channel;

the flexible area is filled and arranged on the top surface, the near-water side wall or the back-water side wall of the rigid area;

the flexible area is wrapped and arranged on the outer side wall of the rigid area and is close to the river channel.

Preferably, it comprises: set up in on river course inside wall: a first retaining wall structure and/or a second retaining wall structure;

the rigid area of the first retaining wall structure is arranged on the near-water side wall of the river channel; the flexible area is filled and arranged on the near-water side wall and the back-water side wall of the rigid area;

the rigid area of the second retaining wall structure is arranged on the bottom surface of the river channel; the flexible region is disposed on the top surface and the back water side of the rigid region.

Preferably, the rigid region of the first retaining wall structure comprises: a cantilever support structure; the cantilever type supporting structure is inserted on the bottom surface of the side wall of the river channel;

the flexible region of the first retaining wall structure comprises: backfill area and vegetation slope protection; the near-water side wall of the cantilever type supporting structure is filled with a backfill area; and vegetation slope protection is arranged on the back water side wall of the cantilever type supporting structure.

Preferably, the rigid region of the second retaining wall structure comprises: the concrete comprises a broken stone cushion layer, a reinforced concrete bottom plate, a plain concrete cushion layer, a grout stone layer and a supporting component; the broken stone cushion layer is laid on the bottom surface of the river channel; the plain concrete cushion layer is arranged on the top surface of the crushed stone cushion layer and is close to the side wall of the river channel; the grout stone layer is arranged on the top surface of the reinforced concrete bottom plate; the supporting component is arranged in the channel and on the top surface of the crushed stone cushion layer.

Preferably, the flexible region of the second retaining wall structure comprises: gabion layer, jackstone and second backfill area;

the gabion layer is arranged on the top surface of the serous masonry layer; the jackstone is arranged on the top surface of the gabion layer; the second backfill region is disposed on the back surface of the rigid region of the second retaining wall structure.

Preferably, the second retaining wall structure comprises: the double-layer inverted filter geotechnical cloth layer is clamped between the jackstone and the gabion layer; the double-layer inverted filter geotechnical cloth layer is clamped between the gabion layer, the grout stone layer, the reinforced concrete bottom plate and the second backfill soil region.

Preferably, the reinforced concrete floor includes: a blocking edge and a supporting plate; a blocking edge is arranged on the side wall of the support plate near water; the baffle edge is arranged on the vertical supporting plate; the near water side of the grout stone layer is abutted with the inner side wall of the baffle edge; the width of the supporting plate is smaller than that of the plain concrete cushion layer; the plain concrete cushion layer is accommodated in the crushed stone cushion layer.

Preferably, the second retaining wall structure comprises: a drainage assembly; the drainage component is accommodated and arranged in the slurry masonry layer; the water inlet end of the drainage assembly is arranged between the rigid areas of the second backfill area; the water outlet end of the drainage component is arranged on the top surface of the reinforced concrete bottom plate.

Preferably, the drainage assembly comprises: a drain pipe and a filtering semicircular bag; the drain pipe is accommodated in the slurry stone layer in an inclined manner; a water inlet of the drain pipe is provided with a filtering semicircular bag; the filtration semicircle package comprises a plurality of coarse grain filter materials filled in the geotextile of the reverse filtration package.

Preferably, the rigid region of the first retaining wall structure comprises: a first plain concrete cushion layer and a second plain concrete cushion layer; the first plain concrete cushion layer is arranged on the bottom surface of the cantilever type supporting structure; the second plain concrete cushion layer is arranged on the top surface of the cantilever type supporting structure;

the flexible region of the first retaining wall structure comprises: a plurality of pre-ingots; the pre-cast blocks are sequentially stacked on the near-water side wall of the first backfill area; the bottom end of the vegetation slope protection is connected with the top end of the cantilever type supporting structure;

the first retaining wall structure comprises: guard bars, hydrophilic walkways; the hydrophilic footpath is arranged on the top surface of the flexible area; the guard rail is arranged on the water approaching edge of the hydrophilic footpath;

the pre-cast ingot comprises: a plurality of fish nest block retaining walls and a plurality of plant-growing block retaining walls; the fish nest block retaining wall is overlapped on the water side wall of the first backfill area below the normal water level; the vegetation block retaining wall is overlapped on the water side wall of the first backfill area above the normal water level; the top surface of the fish nest block retaining wall is provided with a cavity, and the side wall is provided with a hole; the top surface of the plant-growing block retaining wall is provided with a cavity, and the side wall is provided with a hole.

The beneficial effects that this application can produce include:

1) The rigid-flexible combined river channel ecological retaining wall structure provided by the application adopts the combination of the rigid cantilever reinforced concrete retaining wall and the flexible ecological pre-built block retaining wall, can provide reliable support for high and steep side slopes of a river channel to avoid sliding of the river channel retaining wall, and can provide stable and reliable support for plant field planting. On the basis of not influencing the width of the river channel and guaranteeing the basic functions of flood control, drainage and diversion of the river channel, the retaining wall can be reliably supported by the field planting plants in the river channel to form a landscape structure, so that the aesthetic feeling is improved, and the river channel water diversion device is particularly suitable for the conditions of meeting the high-steep side slope support requirements of the river channel and the ecological and landscape shoreline construction requirements.

2) The river course ecological retaining wall structure that just gentle combination that this application provided, section simple structure uses can be better for high abrupt side slope provides reliable support in weak soil region, avoids the river course retaining wall that leads to because the foundation is inhomogeneous subsides to slide, can provide better ecological view effect again.

Drawings

Fig. 1 is a schematic front sectional view of a rigid-flexible combined river ecological retaining wall structure according to a first embodiment of the present disclosure;

fig. 2 is a schematic front sectional view of a rigid-flexible river ecological retaining wall structure according to a second embodiment of the present disclosure;

fig. 3 is a schematic front view of a cantilever support structure according to a first embodiment of the present disclosure;

FIG. 4 is a schematic view of a drain assembly according to a second embodiment of the present disclosure;

FIG. 5 is a schematic top view of a support assembly according to a second embodiment of the present disclosure;

legend description:

2. a cantilever support structure; 1. a first plain concrete cushion layer; 8. a second plain concrete cushion; 3. revegetation slope protection; 4. guard bars; 5. hydrophilic walkways; 6. pre-casting the block; 7. a first backfill area; 21. A vertical arm; 22. a heel plate; 23. a toe board; 24. a baffle; 61. fish nest block retaining wall; 62. plant the block retaining wall of living; 63. a hole; 33. a stone layer; 34. gabion layers; 35. pressing a roof stone; 36. a second backfill area; 37. a drainage assembly; 38. a support assembly; 39. double-layer inverted filtering geotechnical cloth layers; 12. a reinforced concrete bottom plate; 13. a plain concrete cushion layer; 31. a gravel cushion layer; 121. a blocking edge; 71. a drain pipe; 72. coarse-grain filtering material; 73. reversely filtering and wrapping geotextile; 81. reinforced concrete bracing beams; 82. a stone slab.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Technical means which are not described in detail in the application and are not used for solving the technical problems of the application are all arranged according to common general knowledge in the field, and various common general knowledge arrangement modes can be realized.

Referring to fig. 1 to 5, the rigid-flexible river channel ecological retaining wall structure is arranged in a river channel; comprising the following steps: a rigid region and a flexible region; the rigid area is arranged on the near-water side wall of the river channel and/or on the bottom surface of the river channel;

the flexible area is filled and arranged on the top surface, the near-water side wall or the back-water side wall of the rigid area;

the flexible area is wrapped and arranged on the outer side wall of the rigid area and is close to the river channel.

According to the setting, reliable supporting protection of the river channel can be realized by utilizing the rigid area, and the use reliability of the river channel retaining wall in the soft soil area can be effectively improved by arranging the rigid area on the bottom surface of the river channel, so that the retaining wall is effectively prevented from sliding. Through setting up the flexible region, can provide the required soil environment of vegetation field planting in the rigidity region outside, can beautify the environment, can effectively improve the protection stability of rigidity region to the river course again.

Preferably, it comprises: set up in on river course inside wall: a first retaining wall structure and/or a second retaining wall structure;

the rigid area of the first retaining wall structure is arranged on the near-water side wall of the river channel; the flexible area is filled and arranged on the near-water side wall and the back-water side wall of the rigid area;

the rigid area of the second retaining wall structure is arranged on the bottom surface of the river channel; the flexible region is disposed on the top surface and the back water side of the rigid region.

Preferably, the rigid region of the first retaining wall structure comprises: a cantilever support structure 2; the cantilever type supporting structure 2 is inserted on the bottom surface of the side wall of the river channel;

the flexible region of the first retaining wall structure comprises: backfill area and vegetation slope 3; the near-water side wall of the cantilever type supporting structure 2 is filled with a backfill area; and vegetation slope protection 3 is arranged on the back water side wall of the cantilever type supporting structure 2.

Preferably, the rigid region of the second retaining wall structure comprises: a crushed stone bedding 31, a reinforced concrete floor 12, a plain concrete bedding 13, a grout stone layer 33 and a support assembly 38; the broken stone cushion layer 31 is paved on the bottom surface of the river channel; the plain concrete cushion layer 13 is arranged on the top surface of the broken stone cushion layer 31 and is close to the side wall of the river; the grout stone layer 33 is arranged on the top surface of the reinforced concrete bottom plate 12; the support assembly 38 is disposed within the channel and on top of the ballast bed layer 31.

The broken stone cushion layer 31 can provide support for the soft soil layer, adapt to the deformation of the soft soil layer and avoid fracture caused by overhigh rigidity. And meanwhile, the supporting reliability of the broken stone cushion layer 31 to other rigid areas can be improved through the supporting component 38.

Preferably, the flexible region of the second retaining wall structure comprises: gabion layer 34, jackstones 35, and second backfill region 36;

the gabion layer 34 is arranged on the top surface of the grout stone layer 33; the jackstone 35 is arranged on the top surface of the gabion layer 34; the second backfill region 36 is disposed on the back surface of the rigid region of the second retaining wall structure.

The soil needed for greening can be provided according to the arrangement, and the soil can be covered for the rigid area, so that the environment is beautified.

When the first retaining wall structure and the second retaining wall structure are used, the first retaining wall structure and the second retaining wall structure can be respectively arranged on the inner side walls of the river channels, and the same retaining wall structure can be only arranged on the inner side walls of the river channels.

In one embodiment, gabion layer 34 comprises: a plurality of stacked gabion. By stacking, the environment required for plant growth can be provided.

Preferably, the second retaining wall structure comprises: the double-layer inverted filter geotechnical cloth layer 39 is clamped between the jackstone 35 and the gabion layer 34; a double layer of inverted filter geotextile 39 is sandwiched between gabion layer 34, a layer of masonry 33, reinforced concrete floor 12 and second backfill area 36. This arrangement prevents leakage of particulates from the second backfill region 36 while preventing infiltration.

Preferably, the reinforced concrete floor 12 comprises: a blocking edge 121 and a support plate; a blocking edge 121 is arranged on the side wall of the support plate near water; the baffle edge 121 is arranged on the vertical support plate; the near water side of the grout stone layer 33 is abutted against the inner side wall of the baffle edge 121; the width of the supporting plate is smaller than that of the plain concrete cushion layer 13; the plain concrete cushion 13 is accommodated in the gravel cushion 31. Reliable support can be obtained in this arrangement.

Preferably, the second retaining wall structure comprises: a drain assembly 37; the drainage assembly 37 is accommodated and arranged in the grout stone layer 33; the water inlet end of the drainage assembly 37 is disposed between the rigid areas of the second backfill area 36; the water outlet end of the drain assembly 37 is disposed on the top surface of the reinforced concrete floor 12. The arrangement reduces the water collecting pressure in the second backfill region 36 and discharges the excessive water in time.

Preferably, the drain assembly 37 includes: a drain pipe 71 and a filter semicircle bag; the water drain pipe 71 is accommodated and obliquely arranged in the grout stone layer 33; a filtering semicircular bag is arranged on the water inlet of the drain pipe 71; the filter semicircle package includes a plurality of coarse filter materials 72 packed within a filter bag geotextile 73. The effective filtration to the water intaking can be realized through setting up and filtering semicircle package.

Preferably, the rigid region of the first retaining wall structure comprises: a first plain concrete pad layer 131, a second plain concrete pad layer 138; the first plain concrete cushion layer 131 is arranged on the bottom surface of the cantilever type supporting structure 2; a second plain concrete cushion 138 is disposed on the top surface of the cantilever support structure 2;

the flexible region of the first retaining wall structure comprises: a plurality of pre-ingots 6; the pre-cast blocks 6 are sequentially stacked on the water-near side wall of the first backfill region 7; the bottom end of the vegetation slope protection 3 is connected with the top end of the cantilever type supporting structure 2;

the first retaining wall structure comprises: guard rails 4, hydrophilic walkways 5; the hydrophilic footpath 5 is arranged on the top surface of the flexible region; the guard rail 4 is provided on the proximal rim of the hydrophilic travelator 5. The tourists can conveniently visit the river channel area;

the pre-cast ingot 6 includes: a plurality of fish nest block retaining walls 61 and a plurality of vegetation block retaining walls 62; the fish nest block retaining wall 61 is overlapped on the water-near side wall of the first backfill soil region 7 below the normal water level; the vegetation block retaining wall 62 is overlapped on the water-near side wall of the first backfill soil region 7 above the normal water level; the top surface of the fish nest block retaining wall 61 is provided with a cavity, and the side wall is provided with a hole 63; the top surface of the vegetation block retaining wall 62 is provided with a cavity, and the side wall is provided with a hole 63.

Example 1

The rigid-flexible combined river ecological retaining wall structure comprises a combined retaining wall arranged at the edge of a river, a hydrophilic pavement 5, guardrails 4 and vegetation slope protection 3. The retaining wall structure is provided with a plurality of precast blocks 6, a first backfill area 7 and a cantilever type supporting structure 2 from the near water surface to the outside in sequence. The pre-cast blocks 6 are sequentially overlapped and arranged on the outer side wall of the first backfill area 7; the opposite side walls of the first backfill region 7 are disposed in conforming relationship with the cantilever support structure 2.

The first backfill region 7 is disposed in the outer side of the cantilever support 2.

The outer side of the precast block 6 is contacted with the water surface of the river. Hydrophilic footpaths 5 are provided on the top surfaces of the pre-cast block 6 and the first backfill region 7, and the guardrail 4 is provided on the water facing side of the hydrophilic footpaths 5. The top end of the cantilever type supporting structure 2 is connected with the bottom edge of the vegetation slope protection 3.

The cantilever type supporting structure 2 is an inverted T-shaped reinforced concrete retaining wall structure, and comprises: the vertical arm 21, the toe board 23 and the heel board 22 are set according to actual design requirements. The front slope and the back slope of the vertical arm 21 can take a form with a certain gradient or standing upright; the toe board 23 is extended into the river, and a baffle 24 is provided on the extended end of the toe board 23 vertically to the toe board 23, and the baffle 24 has a cross-sectional dimension which can be determined according to the actual situation, so as to prevent the pre-cast block 6 from sliding and collapsing. A second plain concrete cushion 138 is provided on the top surface of the toe board 23 adjacent to the stopper 24 to prevent backfill of the first backfill area 7 from overflowing.

The heel plate 22 is provided at the bottom of the back of the vertical arm 21, extends toward the vegetation slope 3, and is inserted into the vegetation slope 3.

The precast block 6 uses a concrete material including: a retaining wall 61 of fish nest blocks below the normal water level and a retaining wall of the plant-growing pre-cast block 6 above the normal water level. The pre-cast pieces 6 are placed on the toe plates 23 of the cantilever support structure 2, horizontally paved along the water back side of the baffle tables 24 of the toe plates 23, and the layers are mutually clamped and sealed with the pre-cast pieces 6 of the layers.

The top surface of the retaining wall 61 of the fish nest block is provided with a cavity, and the wall surface near water is provided with an opening 63, so that the living things can conveniently enter the cavity and leave the cavity. The cavity can be filled with pebbles or stone blocks, and can be used as a space for aquatic organisms such as small fish to live and spawn, and the opening 63 is a passage for the aquatic organisms such as fish to enter and leave.

The top surface of the plant-growing block retaining wall 62 is provided with a groove cavity, the near water wall surface is provided with an opening 63, soil is filled in the cavity, and after the plant-growing block retaining wall 62 is piled up, an opening is arranged above the near water wall surface, so that a vertical growth space of plants can be provided. The cantilever support structure 2 is provided with a first plain concrete cushion 131 at the bottom. The retaining wall structure can be effectively supported by the first plain concrete cushion layer 131, is particularly suitable for soft soil areas, and can provide reliable support.

The embodiment has simple structure of the interruption surface, can be well adapted to a soft foundation, well solves the supporting problem of a high and steep slope, simultaneously solves the requirements of ecological functions and ecological landscape functions of some rivers, and gives consideration to the safety of hydrophilic activities. The method reflects the principles of ecological river management coordination, naturalness and economy.

Example 2

Rigid-flexible combined river channel ecological retaining wall structure comprises: a foundation layer, a reinforced concrete floor 12, a grout layer 33, a gabion layer 34, a jackstone 35, a second backfill area 36, a drainage system, a support assembly 38, and a double layer inverted filter geotechnical cloth layer 39. The reinforced concrete bottom plate 12 and the serosity stone layer 33 are used as rigid structures, the gabion layer 34 and the second backfilling soil area 36 are used as flexible structures to form a river channel retaining wall structure, the flexible partial structures can provide required soil for plant field planting and buffer various forces conducted by river banks to the rigid structures, the rigid structures are prevented from being stressed too much to lose reliable support and stability, and simultaneously, the field planting plants on the flexible structures can achieve attractive effects.

The foundation layer is formed by paving the broken stone cushion layer 31, the thickness is 0.3m, and the broken stone cushion layer is tamped during construction, so that the soft soil area can be reliably supported and meanwhile the moderate deformation of the soft soil area can be counteracted, and the condition of breaking the foundation layer is avoided.

A plain concrete cushion layer 13 of C15 was further provided on the bottom surface of the reinforced concrete floor 12, with a thickness of 0.1m. The size of the plain concrete cushion layer 13 is slightly larger than the bottom surface size of the reinforced concrete floor 12 so as to ensure even stress and further protect the reinforced concrete floor 12.

The reinforced concrete floor 12 on the upper layer of the foundation layer is the stress layer of the supporting component 38, and the stability of the river retaining wall is guaranteed by the reinforced concrete floor and the stress layer.

The reinforced concrete floor 12 is inverted "L" shaped and includes: a blocking edge 121 and a support plate; the baffle edge 121 is arranged on the top surface of the support plate near the water edge, the grout stone layer 33 is arranged on the top surface of the support plate, and the outer side of the grout stone layer 33 is close to the inner side wall of the baffle edge 121. The water outlet end of the water discharging component 37 is arranged on the top surface of the baffle edge 121.

The width of the transverse part of the baffle edge 121 is 4m, the height is 0.5m, and the baffle edge can be used as a stress layer of the upper retaining wall; the longitudinal portion of the blocking edge 121 is a reserved portion, the width is 0.5m, and the height is 0.5m, so that the support assembly 38 can be supported on the reinforced concrete floor 12 after the foundation subsides.

The two sides of the plain concrete cushion layer 13 respectively extend beyond the 120.1m extension plates of the reinforced concrete bottom plate, and the total width of the plain concrete cushion layer 13 is 4.2m.

The support assembly 38 includes: the reinforced concrete supporting beams 81 and the plurality of stone slabs 82 paved among the supporting beams, the single specification of the reinforced concrete supporting beams 81 is 0.5m by 0.6m, and the length is determined according to the river channel condition. The block slabs 82 were compacted and laid in the space formed by the reinforced concrete beams 81 to a thickness of 0.6m. The support assembly 38 is provided to enhance the support strength of the gravel pad 31.

A grout layer 33 is arranged on the top surface of the reinforced concrete floor 12; a gabion layer 34 is arranged on the top surface of the grout stone layer 33; a jackstone 35 is arranged on the top surface of the gabion layer 34; the land side of the ballast 35 is provided with a second backfill region 36.

The grout stone layer 33 is a layer of C25 fine aggregate concrete masonry retaining wall, the shape is approximately trapezoid, the width of the lower bottom surface is 3m, the width of the upper bottom surface is 2.5m, the height is 1m, and a drainage system is arranged in the grout stone layer 33.

Gabion layer 34 is formed by laying a plurality of gabion layers, in this embodiment, at least two gabion layers are laid, the lower layer is 2m x 0.5m, and the upper layer is 1.5 x 0.5m.

The jackstones 35 are flush with the river-facing side edges of the topmost gabion, 0.6m wide and 0.2m high, so as to form a protection for the gabion.

The drainage system includes: drain pipe, coarse-grain filtering material 72 and filtering-bag geotextile 73. The drain pipe is a PVC pipe with the diameter of 75mm, inclines towards the water surface of the river channel, has the inclination angle of 3 degrees and is arranged in the middle of the serous stone layer 33.

Coarse-grained filter material 72 is filled in the reverse-filtering-bag geotextile 73 and wrapped into a hemispherical shape, the radius of the hemispherical shape is 0.2m, and the unit area mass of the wrapped reverse-filtering-bag geotextile 73 is 400 g/square meter.

A double layer of inverted filter geotechnical cloth 39 is laid between the water inlet side of the second backfill region 36 and the back water side of the gabion layer 34, the grout stone layer 33, and the reinforced concrete floor 12.

The unit area mass of the double-layer inverted filter geotechnical cloth layer 39 is 200 g/square meter, the double-layer inverted filter geotechnical cloth layer 39 is paved from the top of the reinforced concrete bottom plate 12 to the bottom of the jackstone 35, the protection of the whole retaining wall is realized, the loss of tiny soil particles in the second backfill soil region 36 is prevented under the action of the osmotic water pressure, and the stability of the whole structure is further endangered, so that the stability and the reliability of the support of the whole structure are improved.

In addition, considering ecological, aesthetic and safety requirements, the number of layers of the gabion layer 34 is determined according to the actual situation on site, so that the top height of the gabion layer 34 is ensured to be slightly larger than the design normal water level, a second backfill soil region 36 is paved between the design normal water level and the design embankment top elevation, the gradient is determined according to the space on site, and herbaceous plants and small shrubs are planted on the slope, so that the landscape requirement is met.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. The rigid-flexible combined river ecological retaining wall structure is characterized in that the river ecological retaining wall structure is arranged in a river; comprising the following steps: a rigid region and a flexible region; the rigid area is arranged on the near-water side wall of the river channel and/or on the bottom surface of the river channel;

the flexible area is filled and arranged on the top surface, the near-water side wall or the back-water side wall of the rigid area;

the flexible area is wrapped and arranged on the outer side wall of the rigid area and is close to the river channel;

comprising the following steps: set up in on river course inside wall: a first retaining wall structure and a second retaining wall structure;

the rigid area of the first retaining wall structure is arranged on the near-water side wall of the river channel; the flexible area is filled and arranged on the near-water side wall and the back-water side wall of the rigid area;

the rigid area of the second retaining wall structure is arranged on the bottom surface of the river channel; the flexible area is arranged on the top surface and the water back side of the rigid area;

the rigid region of the second retaining wall structure comprises: the concrete comprises a broken stone cushion layer, a reinforced concrete bottom plate, a plain concrete cushion layer, a grout stone layer and a supporting component; the broken stone cushion layer is laid on the bottom surface of the river channel; the plain concrete cushion layer is arranged on the top surface of the crushed stone cushion layer and is close to the side wall of the river channel; the grout stone layer is arranged on the top surface of the reinforced concrete bottom plate; the supporting component is arranged in the channel and on the top surface of the crushed stone cushion layer.

2. The rigid-flexible combined river course ecological retaining wall structure of claim 1, wherein the rigid region of the first retaining wall structure comprises: a cantilever support structure; the cantilever type supporting structure is inserted on the bottom surface of the side wall of the river channel;

the flexible region of the first retaining wall structure comprises: backfill area and vegetation slope protection; the near-water side wall of the cantilever type supporting structure is filled with a backfill area; and vegetation slope protection is arranged on the back water side wall of the cantilever type supporting structure.

3. The rigid-flexible combined river course ecological retaining wall structure of claim 1, wherein the flexible region of the second retaining wall structure comprises: gabion layer, jackstone and second backfill area;

the gabion layer is arranged on the top surface of the serous masonry layer; the jackstone is arranged on the top surface of the gabion layer; the second backfill region is disposed on the back surface of the rigid region of the second retaining wall structure.

4. The rigid-flexible combined river course ecological retaining wall structure of claim 3, wherein the second retaining wall structure comprises: the double-layer inverted filter geotechnical cloth layer is clamped between the jackstone and the gabion layer; the double-layer inverted filter geotechnical cloth layer is clamped between the gabion layer, the grout stone layer, the reinforced concrete bottom plate and the second backfill soil region.

5. The rigid-flexible combined river course ecological retaining wall structure of claim 4, wherein the reinforced concrete bottom plate comprises: a blocking edge and a supporting plate; a blocking edge is arranged on the side wall of the support plate near water; the baffle edge is arranged on the vertical supporting plate; the near water side of the grout stone layer is abutted with the inner side wall of the baffle edge; the width of the supporting plate is smaller than that of the plain concrete cushion layer; the plain concrete cushion layer is accommodated in the crushed stone cushion layer.

6. The rigid-flexible combined river course ecological retaining wall structure of claim 1, wherein the second retaining wall structure comprises: a drainage assembly; the drainage component is accommodated and arranged in the slurry masonry layer; the water inlet end of the drainage assembly is arranged between the rigid areas of the second backfill area; the water outlet end of the drainage component is arranged on the top surface of the reinforced concrete bottom plate.

7. The rigid-flexible river course ecological retaining wall structure of claim 6, wherein the drainage assembly comprises: a drain pipe and a filtering semicircular bag; the drain pipe is accommodated in the slurry stone layer in an inclined manner; a water inlet of the drain pipe is provided with a filtering semicircular bag; the filtration semicircle package comprises a plurality of coarse grain filter materials filled in the geotextile of the reverse filtration package.

8. The rigid-flexible combined river course ecological retaining wall structure of claim 1, wherein the rigid region of the first retaining wall structure comprises: a first plain concrete cushion layer and a second plain concrete cushion layer; the first plain concrete cushion layer is arranged on the bottom surface of the cantilever type supporting structure; the second plain concrete cushion layer is arranged on the top surface of the cantilever type supporting structure;

the flexible region of the first retaining wall structure comprises: a plurality of pre-ingots; the pre-cast blocks are sequentially stacked on the near-water side wall of the first backfill area; the bottom end of the vegetation slope protection is connected with the top end of the cantilever type supporting structure;

the first retaining wall structure comprises: guard bars, hydrophilic walkways; the hydrophilic footpath is arranged on the top surface of the flexible area; the guard rail is arranged on the water approaching edge of the hydrophilic footpath;

the pre-cast ingot comprises: a plurality of fish nest block retaining walls and a plurality of plant-growing block retaining walls; the fish nest block retaining wall is overlapped on the water side wall of the first backfill area below the normal water level; the vegetation block retaining wall is overlapped on the water side wall of the first backfill area above the normal water level; the top surface of the fish nest block retaining wall is provided with a cavity, and the side wall is provided with a hole; the top surface of the plant-growing block retaining wall is provided with a cavity, and the side wall is provided with a hole.

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