CN214735199U - Leading normal position aquatic attitude restoration structure of tidal river reach - Google Patents
Leading normal position aquatic attitude restoration structure of tidal river reach Download PDFInfo
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- CN214735199U CN214735199U CN202120365805.1U CN202120365805U CN214735199U CN 214735199 U CN214735199 U CN 214735199U CN 202120365805 U CN202120365805 U CN 202120365805U CN 214735199 U CN214735199 U CN 214735199U
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Abstract
The utility model discloses a leading normal position water ecological remediation structure of tidal river reach, include: a bank slope is excavated to the river beach base from the top of the bank; the bottom of the partition wall is provided with water drainage holes at intervals, the outer side of the partition wall is provided with a submerged plant platform, and submerged plants and/or floating-leaf plants are planted on the submerged plant platform; the wetland foundation bed filler is filled between the partition wall and the bank slope; the first planting soil layer is arranged on the top of the wetland foundation bed filler, the first planting soil layer forms an emergent aquatic plant platform on the inner side of the partition wall, and emergent aquatic plants are planted on the emergent aquatic plant platform; and a second planting soil layer, which is filled with wetland foundation bed fillers along the bank slope and backfills to the top of the bank slope, and plants are planted in the second planting soil layer. The artificial wetland is embedded into the bank structure, so that the function of the bank zone is restored and enhanced, and the method of occupying land separately is not needed, so that the construction of the in-situ wet zone of the artificial ecological bank can be promoted, the ecological function of the bank is improved, and the water quality of the river channel is improved.
Description
Technical Field
The utility model is used for river course ecological restoration field especially relates to a leading normal position water ecological remediation structure of tidal river reach.
Background
Influenced by factors such as urbanization, river mouth gate setting, bank hardening and the like in fruit forest farmland areas, originally, river gusts and ridges with tidal water entering and exiting every day have weakened hydrodynamic force, the tidal volume of tidal river sections is continuously reduced, and the function of natural tidal power of river channels in the aspect of water quality purification is continuously weakened.
In addition, the existing artificial wetland needs special site construction and dotted distribution, occupies land resources and has very limited area; in addition, the water diversion pipe duct and the water pump are required to be lifted, so that the continuous operation can be realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a leading normal position water ecological remediation structure of tidal river reach, with constructed wetland embedding bank structure, resume and strengthen the function of bank area in the aspect of quality of water purification, ecological recovery and the waterfront view, need not sign the way of taking up an area alone again, can promote the construction of the ecological bank normal position wet area of constructed river, promote the ecological and river course quality of water of bank.
The utility model provides a technical scheme that its technical problem adopted is:
a tidal river reach leading in situ water ecological remediation structure, comprising:
a bank slope is excavated to the river beach base from the top of the bank;
the dam protection device comprises a partition wall and a plurality of dam protection legs, wherein the dam protection legs are arranged at the bottom of a bank slope, the bottom of the partition wall is provided with water drainage holes, the water drainage holes are arranged at intervals, a submerged plant platform is arranged on the outer side of the partition wall, and submerged plants and/or floating-leaf plants are planted on the submerged plant platform;
the wetland foundation bed packing is filled between the partition wall and the bank slope;
the first planting soil layer is arranged on the top of the wetland foundation bed filler, an emergent aquatic plant platform is formed on the inner side of the partition wall by the first planting soil layer, and emergent aquatic plants are planted on the emergent aquatic plant platform;
and a second planting soil layer, wherein the wetland foundation bed filler is backfilled to the top of the bank slope along the bank slope, and plants are planted in the second planting soil layer.
In some embodiments, the wetland bed packing has a porosity of no less than 30%.
In some embodiments, the wetland foundation bed filler comprises zeolite, limestone and gravel, the gravel has a particle size of 3-5 cm, the gravel is laid on the bottom layer of the wetland foundation bed filler, the zeolite and the limestone have a particle size of 2-3 cm, and the zeolite and the limestone are mixed and laid on the top of the gravel layer.
In some embodiments, the partition wall is provided at an outer side thereof with stone blocks, and soil is filled between the stone blocks to form the submerged plant platform.
In some embodiments, the weep holes are positioned near the average low tide level, followed by reverse filtration with a gravel pack.
In some embodiments, the top and bottom surfaces of the first planting soil layer are paved with geotextiles, and the top of the first planting soil layer is paved with a pebble layer.
In some embodiments, the top of the bank slope is provided with a pebble ditch, the pebble ditch is connected with the emergent aquatic plant platform through the second planting soil layer, the second planting soil layer is provided with broken stone blind ditches at intervals, geotechnical cloth is wrapped outside the broken stone blind ditches, and rainwater collected by the pebble ditch is guided into the emergent aquatic plant platform through the broken stone blind ditches.
One of the above technical solutions has at least one of the following advantages or beneficial effects:
1. the artificial wetland is embedded into a riverbank structure, so that the functions of the riverbank zone in water quality purification, ecological restoration and waterfront landscape are restored and enhanced, and the construction of the in-situ wet zone of the artificial ecological riverbank can be promoted, the ecological function of the riverbank is improved and the water quality of a riverway is improved through the in-situ wetland without independently occupying the land.
2. The artificial wetland technology is introduced into a riverbank structure, the wetland is arranged on the first line required by the improvement of the water quality of the river, the tidal power is utilized to drive the water body of the river to permeate and flow in the wetland, and the functions of the tidal wetland in the aspect of water quality purification and backwashing can be fully exerted.
3. By constructing three types of waterfront plant zone spaces of different types, namely submerged, floating leaves, emergent water and bank slopes, a multi-level rich living space is provided for animals and plants, and a river bank ecological corridor is constructed.
4. The front wetland plants of the riparian zone are configured from submerged state and emergent state to a bank slope, so that the landscape level of the riparian zone can be increased, and the landscape of the riparian zone can be improved.
5. As the diffusion area of the ground along the line and the drainage area of the small rainwater pipe, the surface source pollution of primary rainwater on the ground along the bank can be intercepted, and the function of the preposed wetland is achieved.
6. During flood discharge, the water overflows into the wetland through the top of the partition wall to absorb flood, and after rain flood passes, the wetland slowly releases water to the river channel through the water release holes for 3-5 hours, so that certain purification effects of precipitation, adsorption and decomposition can be achieved for absorbing pollutants in the rain flood.
7. The constructed wetland can play a role in buffering and protecting the bank, reduce the soil loss of the bank slope and relieve the sedimentation of river flow.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic diagram of the cyclic tidal emetic process of the wetland in one embodiment shown in fig. 1.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the utility model, the meaning of a plurality of is one or more, the meaning of a plurality of is more than two, and the meaning of more than two is understood as not including the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
Referring to fig. 1, the embodiment of the utility model provides a leading normal position water ecological remediation structure of tidal river reach, including bank slope 1, partition wall 2, wetland foundation bed filler 3, first planting soil layer 4 and second planting soil layer 5, bank slope 1 is excavated to the river beach basement by the bank top, provides the backfill space for wetland foundation bed filler 3 and planting soil. The partition wall 2 is arranged at the position of a bank protection foot at the bottom of the bank slope 1, and the height of the partition wall 2 is lower than the average high tide level, namely, when the high tide level is reached, tide water can flow over the partition wall 2 to enter the wetland at the rear side. The bottom of the partition wall 2 is provided with drain holes 6, the drain holes 6 are used as daily tidal water inlet and outlet channels, the drain holes 6 are arranged at intervals, and the pipe diameter and the interval are determined according to the water receiving and discharging amount of the wetland. When the tide rises, the tide flows into the wetland bed packing 3 on the inner side of the partition wall 2 through the drainage holes 6, and the wetland bed packing 3 is backwashed. When the tide falls, the water is discharged through the water discharge hole 6, and the tidal power is utilized to cause the river water to be repeatedly released and received in the artificial wetland, thereby exerting the water quality improving effect for a long time. The outer side of the partition wall 2 is provided with a submerged plant platform, and submerged plants 7 and/or floating-leaf plants are planted on the submerged plant platform. The fence 8 can be arranged on the top of the partition wall 2 according to needs, so that the safety of the wetland is improved.
The wetland foundation bed filler 3 is filled between the partition wall 2 and the bank slope 1, and the wetland foundation bed filler 3 adopts porous filler and can absorb water for the wetland in the tidal process.
The first planting soil layer 4 is arranged on the top of the wetland foundation bed filler 3, the first planting soil layer 4 forms an emergent aquatic plant platform on the inner side of the partition wall 2, and emergent aquatic plants are planted on the emergent aquatic plant platform;
and the second planting soil layer 5 is backfilled to the top of the bank slope 1 along the bank slope 1 by the wetland foundation bed filler 3, plants are planted in the second planting soil layer 5 to form a grass planting protective surface, and hedgerows 8 are planted at the top of the slope.
The embodiment of the utility model discloses an on the basis of cutting dirty, the reposition of redundant personnel measure, through at the tidal river section, along bank slope 1 set up constructed wetland, constructed wetland technique and river course embankment renovation combine together, imbed in the 1 structure of bank slope, arrange the wetland in the place that needs most, do not only monopolize the land, the wetland is the banding, the cumulative area is big, the wet girth, but the tidal power drive constructed wetland water of make full use of flows, the quality of water purification ability of recovery and reinforcing river bank, guarantee river course quality of water is long treated clearly for a long time, good ecology has, economy, the view benefit.
The embodiment of the utility model provides an utilize morning and evening tides power to resume and strengthen the quality of water purification in the riparian zone, for the ecological corridor of animal and plant perch, promote the view, make the sponge city and play an important role.
In some embodiments, the wetland bed packing 3 has a porosity of not less than 30%, for example up to 40%, i.e. 1m3The wetland foundation bed filler 3 can absorb 0.4m3The water of (2). During flood discharge, the water overflows into the wetland through the top of the partition wall 2 to absorb flood (about 0.6 m)3A Yanmi unilateral river bank), after the rainfall flood passes, the wetland slowly releases water to the river channel through the drainage holes 6 for 3-5 hours, and the purification effect of certain precipitation, adsorption and decomposition can be achieved on pollutants in the rainfall flood.
Furthermore, referring to fig. 1, the wetland foundation bed filler 3 comprises zeolite, limestone and gravel, the particle size of the gravel is 3-5 cm, the gravel is laid on the bottom layer of the wetland foundation bed filler 3 in an occupation ratio of 1/3-2/3, the particle size of the zeolite and limestone is 2-3 cm, and the zeolite and limestone are mixed and laid on the top of the gravel layer in an occupation ratio of 1/2-2/3. The wetland foundation bed filler 3 is backfilled layer by adopting zeolite, limestone and gravel, so that the porosity is high and can reach 40 percent, and the anti-blocking efficiency and the purification efficiency are improved.
In some embodiments, referring to fig. 1, the outside of the partition wall 2 is provided with stone presser feet 9 which, in addition to adding wall stabilization, fill soil between the stones to form a submerged plant 7 platform for growing submerged plants 7.
Referring to fig. 1, a drain hole 6 is reserved at the bottom of the partition wall 2, and the drain hole 6 is arranged near the average low tide level to ensure that the tidal water flows in or out. In addition, adopt rubble package anti-filtration behind the outlet 6, prevent the jam.
In order to avoid the loss of fine soil into the wetland filler, geotextile is laid on the top and bottom surfaces of the first planting soil layer 4.
Further, a pebble layer 10 is laid on the top of the first planting soil layer 4 to serve as an emergent aquatic plant base bed surface.
Referring to fig. 1, a pebble ditch 11 is arranged at the top of a bank slope 1, the pebble ditch 11 is positioned between the top of the slope and a bank top road, and the pebble ditch 11 is used for collecting ground scattered flow and rainwater of a small rainwater pipe along the bank top road. The pebble ditch 11 is connected with the emergent aquatic plant platform through a second planting soil layer 5, the gravel blind ditches 12 are arranged on the second planting soil layer 5 at intervals, geotechnical cloth is wrapped outside the gravel blind ditches 12, rainwater collected by the pebble ditch 11 is guided into the emergent aquatic plant platform through the gravel blind ditches 12, and the loss of the second planting soil layer 5 on the slope surface is avoided.
The embodiment of the utility model has following advantage:
(1) land is saved, the river bank slope 1 foot is utilized to construct an in-situ constructed wetland structure, the land does not need to be occupied independently, and a large amount of land resources can be saved.
(2) Water purification-restoration of the need to enhance the self-purification capacity of water in riparian zones: after the natural river bank is artificially hardened in urban construction, the water purification function of the river bank originally having a certain water purification capacity is basically lost, and the degradation of the water purification capacity of the extended bank is also an important reason for the deterioration of the water quality of the urban river. On one hand, the river pollution needs to be reduced through basic measures of sewage interception and rain and sewage diversion, and on the other hand, a river bank with ecological water purification capacity needs to be designed, the water quality self-purification capacity of the river bank is restored and enhanced, and natural factors are utilized as much as possible to promote the improvement of the water quality of the river channel. The embodiment of the utility model provides an in introducing the bank structure with constructed wetland technique, arrange the wetland on the first line that the quality of water of river promoted needs, utilize tidal power drive river water infiltration flow in the wetland, function and back flush function in the aspect of the quality of water purification of tidal type wetland can be given full play. In addition, the preposed in-situ wet area with enhanced functions can effectively reduce the pollution load of the initial rain entering the river and is also beneficial to reducing the turbidity of the river water in the flood season.
(2) Ecology-the need to enrich the ecological habitat of the river bank: the urban river course that the population is concentrated adopts upright type reinforced concrete, grout stone retaining wall structure more, or concrete, the little barricade of stone banket combines the double entry river bank that the grass was put on a slope, and the space is lacked that animals and plants inhabited, and the habitat is dull, need through the waterfront plant area space of three kinds of different grade types of building three kinds of benthophytes, leafs, emergent water, bank slope 1, provides multi-level abundant living space for animals and plants, builds the ecological corridor of river bank.
(3) Landscape-leading wetland plant configuration of bank area is from sinking, rising to bank slope 1, three big types, can increase the view level of bank, promotes the bank area view.
(4) Sponge city-intercepting coastal ground primary rainwater and other surface source pollution.
1. Pollution reduction: as the ground diffusion along the line and the drainage area of the small rainwater pipe, the surface source pollution such as primary rainwater on the ground along the bank can be intercepted, and the function of preposing the wetland is achieved;
2. fast storage and slow release of rain flood: the porosity of the filling material is about 40 percent, and the filling material overflows into the wetland through the top of the partition wall 2 during flood discharge to absorb flood (about 0.6 m)3A Yanmi unilateral river bank), after the rainfall flood passes, the wetland slowly releases water to the river channel through the drainage holes 6 for 3-5 hours, and the wetland can also play a certain role in precipitating, adsorbing and decomposing the pollutants in the rainfall flood.
(5) Water and soil conservation: the constructed wetland can play a role in buffering and protecting the bank, reduce the soil loss of the bank slope 1 and relieve the river flow siltation.
In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (7)
1. A leading normal position aquatic attitude restoration structure of tidal river reach, its characterized in that includes:
a bank slope is excavated to the river beach base from the top of the bank;
the dam protection device comprises a partition wall and a plurality of dam protection legs, wherein the dam protection legs are arranged at the bottom of a bank slope, the bottom of the partition wall is provided with water drainage holes, the water drainage holes are arranged at intervals, a submerged plant platform is arranged on the outer side of the partition wall, and submerged plants and/or floating-leaf plants are planted on the submerged plant platform;
the wetland foundation bed packing is filled between the partition wall and the bank slope;
the first planting soil layer is arranged on the top of the wetland foundation bed filler, an emergent aquatic plant platform is formed on the inner side of the partition wall by the first planting soil layer, and emergent aquatic plants are planted on the emergent aquatic plant platform;
and a second planting soil layer, wherein the wetland foundation bed filler is backfilled to the top of the bank slope along the bank slope, and plants are planted in the second planting soil layer.
2. The tidal river reach leading in-situ water ecology restoration structure according to claim 1, wherein the wetland foundation bed packing has a porosity of not less than 30%.
3. The tidal river reach in-situ water ecological restoration structure as set forth in claim 2, wherein the wetland foundation bed filler comprises zeolite, limestone and gravel, the gravel has a particle size of 3-5 cm, the gravel is laid on the bottom layer of the wetland foundation bed filler, the zeolite and limestone have a particle size of 2-3 cm, and the zeolite and limestone are mixed and laid on the top of the gravel layer.
4. The tidal river reach leading in-situ water ecology restoration structure according to claim 1, wherein the partition wall is provided with stone block presser feet outside, and soil is filled between the stone blocks to form the submerged plant platform.
5. The in situ water ecology restoration structure for tidal river reach forebay according to claim 1, wherein said drainage hole is provided near the average low tide level, and said drainage hole is followed by reverse filtration with a gravel pack.
6. The in-situ water ecological restoration structure for the pre-positioned tidal river reach of claim 1, wherein the top and bottom surfaces of the first planting soil layer are all paved with geotextiles, and the top of the first planting soil layer is paved with pebble layers.
7. The in-situ water ecological restoration structure arranged in front of the tidal river reach according to claim 1, wherein a pebble ditch is arranged at the top of the bank slope, the pebble ditch is connected with the emergent aquatic plant platform through the second planting soil layer, macadam blind ditches are arranged at intervals on the second planting soil layer, geotechnical cloth is wrapped outside the macadam blind ditches, and rainwater collected by the pebble ditch is guided into the emergent aquatic plant platform through the macadam blind ditches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202120365805.1U CN214735199U (en) | 2021-02-08 | 2021-02-08 | Leading normal position aquatic attitude restoration structure of tidal river reach |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120365805.1U CN214735199U (en) | 2021-02-08 | 2021-02-08 | Leading normal position aquatic attitude restoration structure of tidal river reach |
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| CN214735199U true CN214735199U (en) | 2021-11-16 |
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| CN202120365805.1U Active CN214735199U (en) | 2021-02-08 | 2021-02-08 | Leading normal position aquatic attitude restoration structure of tidal river reach |
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- 2021-02-08 CN CN202120365805.1U patent/CN214735199U/en active Active
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