CN216999549U - Ecological bottom protection system based on aerated porous lightweight concrete - Google Patents
Ecological bottom protection system based on aerated porous lightweight concrete Download PDFInfo
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- CN216999549U CN216999549U CN202220644308.XU CN202220644308U CN216999549U CN 216999549 U CN216999549 U CN 216999549U CN 202220644308 U CN202220644308 U CN 202220644308U CN 216999549 U CN216999549 U CN 216999549U
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Abstract
The utility model belongs to the technical field of porous concrete, discloses an ecological bottom protection system based on aerated porous lightweight concrete, and aims to solve the problem that the adsorption and filtration functions of the porous concrete cannot be fully exerted due to single arrangement structure form of the porous concrete. The utility model comprises a pre-precipitation purification area, a first porous ecological filter bed, a shallow water type plant wet area, a second porous ecological filter bed and a deep water type plant wet area which are sequentially arranged along the flow direction of water flow; the pre-settling purification area comprises a sedimentation tank which is arranged at the bottom of a riverbed and has a trapezoidal section, the bottom of the sedimentation tank is lower than the bottom of the riverbed, a porous concrete block is laid at the bottom of the sedimentation tank, and an ecological floating island for planting plants is arranged above the porous concrete block. The utility model can form a complete set of filtration and adsorption system for rivers, thereby fully playing the adsorption and filtration functions of porous concrete and improving the water purification function.
Description
Technical Field
The utility model belongs to the technical field of porous concrete, and particularly relates to an ecological bottom protection system based on aerated porous lightweight concrete.
Background
The porous concrete has no coarse and fine aggregate, and is filled with a large number of fine closed pores with porosity up to more than 60%. The porous concrete can be divided into aerated concrete and foam concrete, and compressed air is dispersed into a large number of micro bubbles through an aerated medium, and the micro bubbles are uniformly dispersed in slurry to form a porous structure. The porous concrete can be divided into autoclaved porous concrete and non-autoclaved porous concrete according to different curing methods, the porous concrete is light, and the apparent density of the porous concrete is not more than 1000kg/m3Is usually at 300-800 kg/m3The heat preservation performance is excellent, and the heat conductivity coefficient is reduced along with the reduction of the apparent degree, and is generally 0.09-0.17W/m.K.
Meanwhile, the porous concrete has the ecological engineering of water permeability, air permeability, noise absorption, vegetation growth and the like, and is popularized and applied in the field of engineering construction, particularly in ecological engineering of sponge cities. Meanwhile, the porous concrete directly removes pollutants through the effects of deposition, filtration, adsorption and the like (for example, the porous concrete has a good adsorption function on pollution sources such as phosphorus, BOD, COD, SS (suspended matters), heavy metals and the like), and can prevent excessive silt from gathering to the lake bottom (river bottom) to cause the elevation of the lake bottom, and the sludge attached to the surface of the porous concrete is convenient to clean in a dry period.
However, in the use process of the existing porous concrete, the arrangement form of the filtering structure formed by the porous concrete is too single, so that the adsorption and filtering functions of the porous concrete are not fully exerted, the effect of the porous concrete in the aspects of water and soil conservation and water purification is poor in the ecological construction process, and the possessed efficacy of the porous concrete cannot be exerted to the maximum extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the adsorption and filtration functions of porous concrete cannot be fully exerted due to single arrangement structure form of the existing porous concrete, and provides an ecological bottom protection system based on aerated porous lightweight concrete.
In order to solve the technical problem, the technical scheme adopted by the utility model is as follows:
an ecological bottom protection system based on aerated porous lightweight concrete is characterized by comprising a pre-settling purification area, a first porous ecological filter bed, a shallow water type plant wet area, a second porous ecological filter bed and a deep water type plant wet area which are sequentially arranged along the flow direction of water flow; the pre-settling purification area comprises a sedimentation tank which is arranged at the bottom of a riverbed and has a trapezoidal section, the bottom of the sedimentation tank is lower than the bottom of the riverbed, a porous concrete block is paved at the bottom of the sedimentation tank, an ecological floating island for planting plants is arranged above the porous concrete block in a matching way, the ecological floating island comprises a frame body which is formed by enclosing PVC pipes, a plurality of strings of hollow floating balls are uniformly arranged around the frame body, a nylon net for planting plants is paved at the upper end of the frame body, and the frame body is fixedly connected with the porous concrete block at the bottom of the sedimentation tank through a stainless steel wire rope; first porous ecological filter bed and the porous ecological filter bed of second are rammed layer, gravel stone bed course and porous concrete block layer for plain soil in proper order from supreme down, the top interval on porous concrete block layer is provided with porous concrete filter dam, is provided with a plurality of porous concrete gabion structures that set up side by side between the adjacent porous concrete filter dam, porous concrete filter dam includes a plurality of bamboo cage stones, bamboo cage stone forms an arch shape cavity, be provided with at least two-layer porous concrete piece in the arch shape cavity.
In some embodiments, the lower end of each string of hollow floating balls is tied and fixed by a nylon rope.
In some embodiments, the porous concrete gabion structure comprises a stainless steel framework, the lower end of the stainless steel framework is inserted into a soil body, a porous concrete block is placed in the stainless steel framework, and a nylon net for planting plants is laid on the top of the stainless steel framework.
In some embodiments, adjacent stainless steel frames are fixed by steel wire bundling.
In some embodiments, the shallow and deep water type plant wetland areas comprise a rammed earth layer at the bottom of a river bed, and a planting soil layer for planting plants is laid at the upper end of the rammed earth layer.
In some embodiments, both ends of the shallow water type plant wet area and the deep water type plant wet area are provided with slopes.
Compared with the prior art, the utility model has the following beneficial effects:
the ecological bottom protection system based on aerated porous lightweight concrete forms a set of finished filtering and adsorbing system in a lake (river) basin through the structural layout of a pre-settling purification area, a first porous ecological filter bed, a shallow water type plant wet area, a second porous ecological filter bed and a deep water type plant wet area, fully utilizes the adsorption and filtration effects of the porous concrete to purify water, removes pollutants (such as phosphorus, BOD, COD, SS, heavy metals and the like), and achieves the purpose of improving water quality. Meanwhile, a pre-settling purification area is utilized to increase the water passing section, reduce the flow velocity of water flow and weaken the sand-carrying capacity of water flow, thereby playing the roles of sand settling and buffering; the content of settleable substances in river water is reduced, garbage and floating matters are prevented from entering a wetland system, and a 'felt mat' structure is formed on a plant root system by reasonably arranging root zone spaces so as to improve the absorption function of plants and the capability of intercepting granular pollutants and algae; the porous concrete in the first porous ecological filter bed and the second porous ecological filter bed is utilized to further improve the effect of adsorbing phosphorus, and the solid particles in the water body can be intercepted; pollutants such as organic matters, nitrogen, phosphorus and the like in river water are adsorbed, filtered and biochemically degraded by using aquatic plants, matrix filtration and the like in shallow water type plant wet areas, and the river water has a certain landscape function; through submerged aquatic plants and a proper amount of fishes in the deep-water plant wet area, the quality of the effluent is guaranteed, and the effects of storing water, beautifying the environment and the like are achieved. And the insoluble organic matters in the water can be quickly intercepted and utilized by the microorganisms through the sedimentation and filtration functions. Soluble organic matters in the water can be decomposed and removed through the adsorption and absorption of the plant root system microbial film and the biological metabolism process, and the water quality purification capacity of the wetland ecological area is strengthened powerfully.
In conclusion, the utility model can form a complete set of filtering and adsorbing system for lakes (rivers), thereby fully playing the adsorbing and filtering functions of the porous concrete and improving the water quality purifying function of the lakes (rivers).
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a front view of the ecological floating island of the present invention;
fig. 3 is a schematic structural diagram of a top view of the ecological floating island of the present invention;
FIG. 4 is a schematic structural view of a first porous ecological filter bed and a second porous ecological filter bed of the present invention;
FIG. 5 is a schematic view of a portion of FIG. 4 at A;
FIG. 6 is a schematic structural view of a cellular concrete gabion structure of the present invention;
FIG. 7 is a schematic structural view of a shallow water type plant wet area and a deep water type plant wet area according to the present invention;
the labels in the figure are: 1. the ecological floating island comprises a pre-settling purification area, 11, a sedimentation tank, 12, an ecological floating island, 121, a frame body, 122, a nylon net, 123, a porous concrete block, 124, a hollow floating ball, 125, a stainless steel wire rope, 126, a nylon rope, 2, a first porous ecological filter bed, 21, a plain soil compaction layer, 22, a sand gravel cushion layer, 23, a porous concrete block layer, 24, a porous concrete filter dam, 241, bamboo gabion, 25, a porous concrete gabion structure, 251, a stainless steel frame, 252, a steel wire, 3, a shallow water type plant wet area, 31, a planting soil layer, 4, a second porous ecological filter bed, 5 and a deep water type plant wet area.
Detailed Description
The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.
With the attached drawing, the ecological bottom protection system based on aerated porous lightweight concrete comprises a pre-precipitation purification area 1, a first porous ecological filter bed 2, a shallow plant wet area 3, a second porous ecological filter bed 4 and a deep plant wet area 5 which are sequentially arranged along the flow direction of water flow; the pre-settling purification area 1 comprises a settling pond 11 which is arranged at the bottom of a riverbed and has a trapezoidal section, the bottom of the sedimentation tank 11 is lower than the bottom of the riverbed, the bottom of the sedimentation tank is paved with a porous concrete block 123, an ecological floating island 12 for planting plants is arranged above the porous concrete block 123, the ecological floating island 12 comprises a frame body 121 which is formed by enclosing PVC pipes, a plurality of strings of hollow floating balls 124 are uniformly arranged around the frame body 121, wherein, a plurality of hollow floating balls are arranged on each string of hollow floating balls 124 and are mutually connected together through a flexible rope, the upper end of the frame body is paved with a nylon net 122 for planting plants, preferably, the nylon net 122 can be set according to conditions, two layers of nylon nets 122 are paved under general conditions, and a space is reserved between the two layers of nylon nets 122, so that plants (plants) can be planted conveniently; the frame body 121 is fixedly connected with the porous concrete block 123 at the bottom of the sedimentation tank 11 through a stainless steel wire rope 125, that is, the frame body 121 of the ecological floating island 12 is fixed on the porous concrete block 123 at the bottom of the sedimentation tank 11; first porous ecological filter bed 2 and the porous ecological filter bed 4 of second are plain soil tamp layer 21, sand gravel bed course 22 and porous concrete block layer 23 from supreme down in proper order, and wherein porous concrete block layer 23 is laid by porous concrete piece 123 and is formed, the top interval of porous concrete block layer 23 is provided with porous concrete filter dam 24, is provided with a plurality of porous concrete gabion structures 25 that set up side by side between the adjacent porous concrete filter dam 24, porous concrete filter dam 24 includes a plurality of bamboo cage stones 241, bamboo cage stone 241 forms an arch shape cavity, be provided with at least two-layer porous concrete piece 123 in the arch shape cavity. The bamboo cage stones 241 are composed of bamboo cages and stones coated inside the bamboo cages, which can be understood and appreciated by those skilled in the art, and are not described herein again.
In the concrete implementation, the outline dimension of the porous concrete blocks 123 is 550 × 330 × 200mm, and the porous concrete blocks 123 should be orderly arranged during the laying process.
In some embodiments, the front end of the pre-settling purification zone 1 (i.e. the water inlet end of the pre-settling purification zone 1) and the rear end of the deepwater wet plant area 5 (i.e. the water outlet end of the deepwater wet plant area 5) are provided with overflow weirs, and the water amount is controlled by the overflow weirs.
In some embodiments, river beach stone water filtering weirs are arranged between the pre-settling purification area 1 and the first porous ecological filter bed 2, between the first porous ecological filter bed 2 and the shallow water type plant wet area 3, between the shallow water type plant wet area 3 and the second porous ecological filter bed 4, between the second porous ecological filter bed 4 and the deep water type plant wet area 5, and comprise front side bamboo cage stones and rear side bamboo cage stones, at least one layer of porous concrete block is arranged between the front side bamboo cage stones and the rear side bamboo cage stones, adjacent plates are connected through the river beach stone water filtering weirs (the pre-settling purification area 1, the first porous ecological filter bed 2, the shallow water type plant wet area 3, the second porous ecological filter bed 4 and the deep water type plant wet area 5), the function of smoothing water flow can be realized by arranging the river beach stone water filtering weirs, and the porous concrete blocks can be fully utilized for adsorption and filtration, the number of pollutants entering the subsequent plate is reduced, so that the water body is purified; and simultaneously, subsequently cleaning the sediment on the porous concrete block between the front side bamboo cage stone and the rear side bamboo cage stone.
Here, it should be noted that: the porous concrete block in the utility model is an aerated porous lightweight concrete block.
In some embodiments, the lower end of each row of the hollow floating balls 124 is tied and fixed by a nylon rope 126, thereby fixing each row of the hollow floating balls 124 and preventing the hollow floating balls from moving away from the frame 121 under the action of the water flow.
In some embodiments, the cellular concrete gabion structure 25 comprises a stainless steel frame 251, the lower end of which is inserted into the cellular concrete block layer 23, a cellular concrete block 123 is placed in the stainless steel frame 251, and a nylon mesh 122 for planting plants is laid on the top of the stainless steel frame 251. Wherein a space for placing the porous concrete block 123 is formed in the stainless steel frame 251, and the porous concrete block 123 is placed in the stainless steel frame 251.
Preferably, the stainless steel tubes are arranged at the bottom of the four corners of the stainless steel frame 251, and the stainless steel tubes are inserted into the soil body, that is, the stainless steel tubes at the bottom of the stainless steel frame 251 are inserted into the soil body, so as to stabilize the stainless steel frame 251. In the specific implementation process, the depth of the stainless steel pipe inserted into the soil body is judged according to the actual situation, so that the stainless steel frame 251 can be stabilized.
Preferably, two stainless steel pipes are also arranged at the bottom of the back surface of the stainless steel frame 251, so that the impact resistance is further improved, and the stability of the porous concrete gabion structure is improved.
In some embodiments, adjacent stainless steel frames 251 are bound and fixed by steel wires 252.
In some embodiments, the shallow water type plant wet area 3 and the deep water type plant wet area 5 include a plain soil compacted layer 21 at the bottom of the river bed, and a planting soil layer 31 for planting plants is laid on the upper end of the plain soil compacted layer 21, wherein the plants planted in the shallow water type plant wet area 3 and the deep water type plant wet area 5 are different, and therefore, the thickness of the planting soil layer 31 is different, for example, the thickness of the planting soil layer 31 in the shallow water type plant wet area 3 is about 450mm, and the thickness of the planting soil layer in the deep water type plant wet area 5 is about 300 mm.
In some embodiments, both ends of the shallow water type plant wet area 3 and the deep water type plant wet area 5 are provided with slopes.
The ecological bottom protection system based on aerated porous lightweight concrete forms a set of finished filtering and adsorbing system in a lake (river) basin through the structural layout of a pre-settling purification area, a first porous ecological filter bed, a shallow water type plant wet area, a second porous ecological filter bed and a deep water type plant wet area, fully utilizes the adsorption and filtration effects of the porous concrete to purify water, removes pollutants (such as phosphorus, BOD, COD, SS, heavy metals and the like), and achieves the purpose of improving water quality. Meanwhile, the pre-settling purification area is utilized to increase the water passing section, reduce the flow velocity of water flow and weaken the sand-carrying capacity of water flow, thereby playing the roles of sand setting and buffering; the content of settleable substances in river water is reduced, garbage and floating matters are prevented from entering a wetland system, and a 'felt mat' -shaped structure is formed by reasonably arranging root zone spaces so as to improve the absorption function of plants and the capability of intercepting granular pollutants and algae; the porous concrete in the first porous ecological filter bed and the second porous ecological filter bed is utilized to further improve the effect of adsorbing phosphorus, and the solid particles in the water body can be intercepted; pollutants such as organic matters, nitrogen, phosphorus and the like in river water are adsorbed, filtered and biochemically degraded by using aquatic plants, matrix filtration and the like in shallow water type plant wet areas, and the river water has a certain landscape function; through submerged aquatic plants and a proper amount of fishes in a deep-water plant wet area, the quality of effluent water is guaranteed, and the effects of storing water bodies, beautifying the environment and the like are achieved. And the insoluble organic matters in the water can be quickly intercepted and utilized by the microorganisms through the sedimentation and filtration functions. Soluble organic matters in the water can be decomposed and removed through the adsorption and absorption of the plant root system microbial film and the biological metabolism process, and the water quality purification capacity of the wetland ecological area is strengthened powerfully.
In conclusion, the utility model can form a complete set of filtering and adsorbing system for lakes (rivers), thereby fully playing the adsorbing and filtering functions of the porous concrete and improving the water quality purifying function of the lakes (rivers).
Claims (6)
1. An ecological bottom protection system based on aerated porous lightweight concrete is characterized by comprising a pre-settling purification area, a first porous ecological filter bed, a shallow water type plant wet area, a second porous ecological filter bed and a deep water type plant wet area which are sequentially arranged along the flow direction of water flow; the pre-settling purification area comprises a sedimentation tank which is arranged at the bottom of a riverbed and has a trapezoidal section, the bottom of the sedimentation tank is lower than the bottom of the riverbed, a porous concrete block is paved at the bottom of the sedimentation tank, an ecological floating island for planting plants is arranged above the porous concrete block in a matching way, the ecological floating island comprises a frame body which is formed by enclosing PVC pipes, a plurality of strings of hollow floating balls are uniformly arranged around the frame body, a nylon net for planting plants is paved at the upper end of the frame body, and the frame body is fixedly connected with the porous concrete block at the bottom of the sedimentation tank through a stainless steel wire rope; first porous ecological filter bed and the porous ecological filter bed of second are rammed layer, gravel stone bed course and porous concrete block layer for plain soil in proper order from supreme down, the top interval on porous concrete block layer is provided with porous concrete filter dam, is provided with a plurality of porous concrete gabion structures that set up side by side between the adjacent porous concrete filter dam, porous concrete filter dam includes a plurality of bamboo cage stones, bamboo cage stone forms an arch shape cavity, be provided with at least two-layer porous concrete piece in the arch shape cavity.
2. The ecological bottom protection system based on aerated porous lightweight concrete according to claim 1, wherein the lower end of each string of hollow floating balls is tied and fixed by nylon ropes.
3. The ecological bottom-protecting system based on aerated porous lightweight concrete according to claim 1 or 2, wherein the porous concrete gabion structure comprises a stainless steel frame, the lower end of the stainless steel frame is inserted into the soil body, a porous concrete block is placed in the stainless steel frame, and a nylon net for planting plants is laid on the top of the stainless steel frame.
4. The ecological bottom-protecting system based on aerated porous lightweight concrete according to claim 3, wherein adjacent stainless steel frames are fixed by steel wire bundling.
5. The ecological bottom protection system based on aerated porous lightweight concrete according to claim 1, wherein the shallow water type plant wetland area and the deep water type plant wetland area comprise a plain soil compacted layer located at the bottom of a riverbed, and a planting soil layer for planting plants is laid at the upper end of the plain soil compacted layer.
6. The ecological bottom-protecting system based on aerated porous lightweight concrete according to claim 5, wherein both ends of the shallow water type plant wet area and the deep water type plant wet area are provided with side slopes.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115466007A (en) * | 2022-08-26 | 2022-12-13 | 中国五冶集团有限公司 | Wetland park formula ecological clean system |
| CN116102173A (en) * | 2022-08-26 | 2023-05-12 | 中国五冶集团有限公司 | Novel ecological chinampa of multi-functional formula |
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2022
- 2022-03-24 CN CN202220644308.XU patent/CN216999549U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115466007A (en) * | 2022-08-26 | 2022-12-13 | 中国五冶集团有限公司 | Wetland park formula ecological clean system |
| CN116102173A (en) * | 2022-08-26 | 2023-05-12 | 中国五冶集团有限公司 | Novel ecological chinampa of multi-functional formula |
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