CN201981511U

CN201981511U - Long-term multi-function riverway ecological restoration retaining dam

Info

Publication number: CN201981511U
Application number: CN2011200919465U
Authority: CN
Inventors: 单克胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-31
Filing date: 2011-03-31
Publication date: 2011-09-21
Anticipated expiration: 2021-03-31

Abstract

The utility model relates to a long-term multi-function riverway ecological restoration retaining dam, which mainly solves the problem that the function of the current retaining dam is single. The long-term multi-function riverway ecological restoration retaining dam is characterized in that the retaining dam comprises a sandbag layer and a filtering layer, wherein the sandbag layer is positioned at the bottom part, and the filtering layer is positioned at the upper end of the sandbag layer. The sandbag layer is composed of sandbags, and the filtering layer is composed of filter pockets. The inner parts of the filter pockets contain active carbon, charcoal, gravel and nonwoven cotton. As the filtering layers are arranged in the retaining dam, river water entering the dam from external rivers can be filtered, and the water body pollution caused by pollutants entering the riverway is effectively reduced to be beneficial to purification of water body. Therefore, the dam is beneficial to keeping water in the river clean and clear, and the good riverway ecological environment is ensured.

Description

A kind of long acting multifunction river channel ecology is repaired check dam

Technical field

The utility model relates to a kind of river course reinstatement works, refers in particular to a kind of long acting multifunction river channel ecology and repairs check dam.

Background technology

Current China town and country pollution of river is very serious, various places are all administered on a large scale taking measures, wherein the river channel ecology reparation is a complicated system engineering the most in the whole improvement, comprise: cut a dirt and receive pipe, channel cleanout, water body purification and riverbank vegetation realize that finally water is clear, smooth, bank is green, scape is beautiful, harmonious co-existence between man and nature.But again the reverse situation can appear after the reparation of many river courses, very fast reinstatement.Trace it to its cause except the normality maintenance work is not caught up with, after the check dam that makes up with sand hill during construction was removed, sewage was invaded and is caused water body to degenerate outside the river, and blackening is smelly again to cause river, falls short of success for lack of final effort.Concrete reason is that dam body is short application life, and function ratio is more single, and does not possess retaining power, therefore becomes single check dam into long acting multifunction, becomes and safeguards the important ring of restoration of the ecosystem effect.

At present, a kind of rubber check dam is arranged, existing many decades history is used in the many areas of China.But its hilly ground, suitable mountain area or the city river of certain slope is arranged can build up drop waterfall, beautifies water environment with this.But there are to involve great expense maintenance cost height (needing to build pump house), ship many defectives such as can not open the navigation or air flight, can not be in the network of rivers dense low-lying Plain large scale application.Therefore cheap, possess retaining, water drainage, the multi-functional check dam of navigation simultaneously and become current river channel ecology and repair an important engineering.

Summary of the invention

For shortcoming and the weak point that overcomes background technology, the utility model provide a kind of cheap, simultaneously can retaining, water drainage and navigable long acting multifunction river channel ecology repair check dam, solves that existing check dam function of use is single, application life is short, cost is high, maintenance cost is big and unnavigable problems.

The technical solution of the utility model is: a kind of long acting multifunction river channel ecology is repaired check dam, it is characterized in that: comprise sand hill layer and filtration beds, described sand hill layer is positioned at the bottom, described filtration beds is positioned at sand hill layer upper end, described sand hill layer is made up of sand hill, described filtration beds is made up of filtering mesh bag, comprises active carbon, charcoal, small crushed stone and non-woven cotton in the described filtering mesh bag.

Further, described sand hill layer is provided with navigation mouthful, and a described navigation mouthful place is provided with the navigation door that is mated, and described filtration beds is positioned at the sand hill layer upper end of navigation mouthful both sides, and described navigation mouth and filtration beds upper end surface are on same horizontal plane.

Further, described navigation mouthful and the Men Jun that opens the navigation or air flight are positioned at the centre position of sand hill layer.

Further again, described navigation door is for double-layer structure and be positioned at the centre position and be provided with filtration beds, is positioned at the filtration beds below and is provided with water level control apparatus.

Further, be provided with the hurdle net on the described filtration beds.

The utlity model has following beneficial effect: owing in check dam, be provided with the filtration beds device, externally the river that enters in the dam of river filters, effectively reducing pollutant enters and causes water pollution in the river course, be beneficial to water body purification, thereby help keeping the Ha Noi water body clean, limpid, guaranteed the formedness of river channel ecology environment.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among the figure, sand hill layer 1, sand hill 11, filtration beds 2, filtering mesh bag 21, navigation mouth 3, navigation door 4, hurdle net 5, column 6, water level control apparatus 7.

The specific embodiment

At accompanying drawing embodiment of the present utility model is described further below:

Shown in figure, this long acting multifunction river channel ecology is repaired check dam, comprise sand hill layer 1 and filtration beds 2, described sand hill layer 1 is located at the bottom, river course, described filtration beds 2 is positioned at sand hill layer 1 upper end, be provided with sand hill 11 in the described sand hill layer 1, described filtration beds 2 is made up of filtering mesh bag 21, is provided with active carbon, charcoal, small crushed stone and non-woven cotton filtering material in the described filtering mesh bag 21.According to such scheme, owing in check dam, be provided with the filtration beds device, externally the river that enters in the dam of river filters, effectively reducing pollutant enters and causes water pollution in the river course, be beneficial to water body purification, thereby help keeping the Ha Noi water body clean, limpid, guaranteed the formedness of river channel ecology environment.In the utility model, described sand hill layer 1 centre position is provided with navigation mouth 3, described navigation mouthful 3 places are provided with the navigation door 4 that is mated, and described filtration beds 2 is positioned at sand hill layer 1 upper end of navigation mouthful 3 both sides, and described navigation mouthfuls 3 and filtration beds 2 upper end surfaces are on same horizontal plane.Offering a navigation mouthfuls 3 in check dam central authorities, mainly is for convenience logical ship, and the space is bigger, widely is about 0.8-1.5 meters, and about 0.5 meter-1 meter of the degree of depth is for vessel for collecting refuse from open, dredger use.Used the navigation door at 4 o'clock, and earlier the hurdle net on the water surface 5 was drawn in, door 4 inner filtration layers 2 mesh bag of will open the navigation or air flight are then removed in the both sides or ship that are placed on navigation door 4, ship by after put back to again, can open in advance as the heavy rain flood and open the navigation or air flight 4, remove filtering mesh bag 21.In case of necessity the filtration beds mesh bag is moved on to the riverbank, and can move the sand hill below the navigation door 4,, guarantee dam safety, treat to put back to after the flood to enlarge the dam flood carrying capacity.

Filtration beds 2 lower ends between navigation door place are provided with water level control apparatus 7, can control and regulate water level, can be for the ship navigation, and logical ship time is opened navigation door 4, removes filtration beds 2 and water level control apparatus 7 in the navigation door 4, thereby makes ship pass through smoothly.

In the utility model, described navigation door 4 is for double-layer structure and be positioned at the centre position and be provided with filtration beds 2.But navigation door 4 water flowings described here, be double-decker, navigation mouthful 3 both sides all are provided with navigation door 4, lay filtering mesh bag 21 in navigation door 4 centre positions, but be set to water flowing and can filter, need not open the navigation door just can water flowing, increases river discharge on the one hand, make that on the other hand filter area is wider, efficient is higher.

In the utility model, described filtration beds 2 upper ends are provided with hurdle net 5.For preventing that the upstream floating thing from entering internal contamination river course, dam, set up hurdle net 5 one in the upper end, dam, can effectively keep river course water surface cleaning, for making check dam attractive in appearance, can partly use on the stainless steel guard at the exposed water surface, climb the rattan pasture and water at water surface planting again and cover dam body, make it to become green landscape one.

In the utility model, the river channel ecology reparation is related to many problems such as the hydrology, geology, landform, build and to construct after the river course check dam must be obtained the hydraulic department approval, be typically chosen in upstream and downstream and comprise tributary intersection or pier location, be built into wide about 80 centimetres-150 centimetres check dam with concrete column or Chinese pine wood.River bed to about 1.5-2 meters sand hills of packing with Nylon Bag of water build up fluid-tight sand hill layer, make the river course keep sufficient water source, even if dry season in the winter time also has nearly 2 meters dark cleaning river courses to exist.And the bed-silt foreign material will be removed before building, every root post 6 is separated by about 1.5 to 2 meters, and the most handy between the two bamboo fence for building blocks, and is easy to use waterproof again.Second saves every root post 6 oblique wood piling and reinforces, and strengthens the dam support force, has made its strength-enhanced, guarantees dam body application life, and the check dam of different sizes can be set according to the size in different river courses.

In order to guarantee that dam uses for a long time, must regularly remove rubbish and floating thing outside the dam, keep the every function of check dam normally to move.Construction check dam that can not be too much in a river course flows and flood discharge capacity in order to avoid influence river, and wants conscientious perfecting program work.

Embodiment should not be considered as the restriction to utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.

Claims

1. a long acting multifunction river channel ecology is repaired check dam, it is characterized in that: comprise sand hill layer (1) and filtration beds (2), described sand hill layer (1) is positioned at the bottom, described filtration beds (2) is positioned at sand hill layer (1) upper end, described sand hill layer (1) is made up of sand hill (11), described filtration beds (2) is made up of filtering mesh bag (21), and described filtering mesh bag comprises active carbon, charcoal, small crushed stone and non-woven cotton in (21).

2. repair check dam according to the described long acting multifunction river channel ecology of claim 1, it is characterized in that described sand hill layer (1) is provided with navigation mouthful (3), described navigation mouthful (3) locates to be provided with the navigation door (4) that is mated, described filtration beds (2) is positioned at sand hill layer (1) upper end of navigation mouthful (3) both sides, and described navigation mouthful (3) and filtration beds (2) upper end surface are on same horizontal plane.

3. repair check dam according to the described long acting multifunction river channel ecology of claim 2, it is characterized in that described navigation mouthful (3) and navigation door (4) all are positioned at the centre position of sand hill layer (1).

4. long acting multifunction restoration of the ecosystem check dam according to claim 3 is characterized in that described navigation door (4) for double-layer structure and be positioned at the centre position and be provided with filtration beds (2), is positioned at filtration beds (2) below and is provided with water level control apparatus (7).

5. repair check dam according to claim 1 or 2 or 3 or 4 described long acting multifunction river channel ecologies, it is characterized in that described filtration beds (2) upper end is provided with hurdle net (5).