CN203373705U

CN203373705U - Ecological slope protection

Info

Publication number: CN203373705U
Application number: CN201320424326.8U
Authority: CN
Inventors: 陆惠萍; 张艳
Original assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Current assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Priority date: 2013-07-16
Filing date: 2013-07-16
Publication date: 2014-01-01
Anticipated expiration: 2023-07-16

Abstract

The utility model provides ecological slope protection which comprises a slope top, a slope face and a slope toe. A plurality of lattice bank frames defined by prefabricated reinforcing steel bar concrete lattice banks are evenly distributed on the slope face. A geotextile layer is laid at the bottoms of the lattice bank frames and is degradable natural environment-friendly geotextile. A backfill pond residue layer is laid on the geotextile layer. A lap joint between every two prefabricated reinforcing steel bar concrete lattice banks is cast-in-place plain concrete. A main bar of each prefabricated reinforcing steel bar concrete lattice bank extends into the plain concrete of one lap joint. The cast plain concrete of the lap joints can be of different shapes. The slope top is a platform formed by backfill pond residues in a laid mode. The lowest layer of the slope toe is a slope toe geotextile layer. A thick rock ballast cushion layer is laid on the slope toe geotextile layer. Dry building block rock pedestal feet are arranged on the thick rock ballast cushion layer. According to the ecological slope protection, the prefabricated reinforcing steel bar concrete lattice banks are combined with the cast-in-place plain concrete in the lap joint positions, so that the structure is simple, the construction period is short, the stability and anti-scouring performance of a bank slope structure can be guaranteed, and the functions of ecological environmental protection and environment beautification are achieved.

Description

Ecological revetment

Technical field

The utility model relates to a kind of protective slope structure, be particularly related to a kind of novel ecological slope protection structure, mainly be applicable to the bank slope protection of the hydraulic engineerings such as river course, dyke, row's facilities engineering is filled with in bank slope protection and the irrigation and water conservancy that also can apply to the water conservancy marine traffic engineering upstream and downstream linkage sections such as sluice, pumping plant, ship lock.

Background technology

Along with country more and more payes attention to hydraulic engineering, the common people require more and more higher to living environment, and the bank slope protection design focal point of hydraulic engineering is in recent years advocated ecology, environmental protection, water is clear, bank is green ecological slope protection structure.At first the ecological slope protection structure should consider security reliability and the economy of engineering structures, secondly also should consider easy construction, the factor such as quick, in conjunction with ecological effect, give full play to river course at flood control, water drainage, ecological, environmental protective and improve the comprehensive function of the aspect such as surrounding enviroment.

In recent years, the project of reclaiming land from the sea is implemented in the coastal areas of southern China area, enclose and cultivate regional soil property and take sandy silt as main, this soil property easily produces the breakoff phenomenons such as piping, quicksand under the dynamic action of water, stability, impermeability to the river course slope protection structure all can have a negative impact, particularly more dangerous in river course flood phase, storm period.Therefore, the river course slope protection structure should meet the requirement of shelter such as stability, scour resistance.

Existing protective slope structure adopts wall formula stone masonry, reinforced concrete structure, ramp type stone paving or plain concrete protective slope structure usually, although such protective slope structure can meet constitutionally stable requirement, play certain antiscour effect, but environmental protection, ecological performance are poor, blocked microorganism with the reciprocation between the soil body, water body easily produces eutrophication, has caused the contradiction between river course slope protection stability and scour resistance and river course environment-protective water ecological functions.And protective slope structure adopts the Cast-in-place concrete lattice ridge, the construction period is long, can cause the destruction to surrounding environment, and the expense of corresponding cost is also higher.

Therefore, ecological revetment should be in the stability that has guaranteed protective slope structure and erosion resistibility, the function of also should have quick construction, ecological, environmental protective, beautifying the environment.

The utility model content

The shortcoming of prior art in view of the above, the technical problems to be solved in the utility model be to provide a kind of simple in structure, the construction period is short, can guarantee stability, the scour resistance of bank slope structure, the ecological revetment that has again the ecological, environmental protective function.

For solving the problems of the technologies described above, the utility model provides a kind of ecological revetment, comprise top, slope, domatic and toe, described domatic upper a plurality of lattice ridge frames that surrounded by the prefabricated reinforced concrete lattice ridge that evenly are laid with, described lattice ridge frame bottom is equipped with geotechnological layer of cloth, and described geotechnological layer of cloth upper berth is provided with backfill pool slag blanket; The plain concrete that overlapped joints place between the described prefabricated reinforced concrete lattice ridge is cast in situs.

Preferably, described geotechnological layer of cloth is degradable natural environment-friendly type geotechnique cloth.

Preferably, the main muscle on the described prefabricated reinforced concrete lattice ridge stretches in the plain concrete of described overlapped joints.

Preferably, water by plain concrete each the described overlapped joints built up and there is difformity.

Preferably, the platform of top, described slope for being laid to by backfill pool slag.

Preferably, the described toe bottom is toe geotechnique layer of cloth, and described toe geotechnique's layer of cloth upper berth is provided with thick rock ballast bed course, on described thick rock ballast bed course, is the generous pin of placed rockfill.

As mentioned above, ecological revetment described in the utility model has following beneficial effect:

1. adopt the prefabricated reinforced concrete lattice ridge, convenient and quick construction, the construction speed of bank protection, construction quality can be guaranteed, and operating expenses is low, invest little;

2. the on-site geology characteristic of incorporation engineering, packing material in the lattice ridge frame that the prefabricated reinforced concrete lattice ridge surrounds adopts the slag backfill of the resourceful pool, and be equipped with degradable natural environmental-protective geotextiles in pool slag bottom, when guaranteeing the bank slope structural stability, can prevent the destruction of current scour and piping, can improve the self-purification capacity of water body again, for fish, shrimp etc. provide good living environment under water;

The prefabricated reinforced concrete lattice ridge with at overlapped joints place cast in situs element concrete, combine, engineering quantity is little, meets the convenient requirement of construction;

4. the plain concrete moulding that the overlapped joints place between the prefabricated reinforced concrete lattice ridge builds can be enriched colourful, has the function of beautifying River Landscape.

The accompanying drawing explanation

Fig. 1 is shown as the top view of ecological revetment of the present utility model.

Fig. 2 is shown as the sectional view of the ecological revetment shown in Fig. 1 along the A-A line.

The specific embodiment

Below by particular specific embodiment, embodiment of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this manual.

Refer to accompanying drawing.Notice, appended graphic the illustrated structure of this manual, ratio, size etc., equal contents in order to coordinate manual to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, in this manual, quote as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the utility model.

Figure 1 shows that the top view of the ecological revetment that the utility model provides, as shown in Figure 1, this ecological revetment comprises slope top 1, domatic 2 and toe 3, is provided with the multiple tracks lattice ridge on domatic 2.Traditional lattice ridge constructure scheme is first on domatic 2, to have dug groove, a modeling plate on groove, then on template concreting, the construction period is long, spends high.The lattice ridge of laying on the ecological revetment that the utility model provides adopts precast construction, is the prefabricated reinforced concrete lattice ridge 4, greatly the reduction of erection time, saves investment.In embodiment, domatic 2 slope is than being 1:3; Adopt the precast reinforced C20 concrete lattice ridge, be of a size of 200mm * 250mm(wide * height), the length on the prefabricated reinforced concrete lattice ridge 4 and Unit Weight can specifically be determined according to installation requirement.

The prefabricated reinforced concrete lattice ridge shown in Fig. 14 laterally, longitudinal lap joint together, surrounded tetragonal lattice ridge frame 41, these lattice ridge frames 41 evenly are laid on whole domatic 2, have guaranteed the stability of protective slope structure.In embodiment, can, according to meeting the many factors such as engineering stability requirement, the requirement of cooperation River Landscape, the prefabricated reinforced concrete lattice ridge 4 be overlapped to form to the polygonal lattice ridge frames 41 such as hexagon.

During construction, after each prefabricated reinforced concrete lattice ridge 4 arranges by designing requirement, each overlapped joints 5 is carried out to cast in situs by designing requirement, building material is plain concrete.For guaranteeing the intensity of overlapped joints 5, the main muscle in the prefabricated reinforced concrete lattice ridge 4 should be stretched in the plain concrete of overlapped joints 5.Guaranteeing that each prefabricated reinforced concrete lattice ridge 4 is to each other tightly under the prerequisite of combination, the plain concrete at overlapped joints 5 places can water and build up various shape according to the view requirement, reaches the effect of beautifying River Landscape.In embodiment, overlapped joints 5 places adopt C20 element concrete, and building is highly 250mm.

Figure 2 shows that the sectional view of ecological revetment, as shown in Figure 2, the soil matrix under lattice ridge frame 41 has been compacted leveling, and frame 41 bottoms, the lattice ridge are equipped with geotechnological layer of cloth 42.The geotextiles adopted is 250g/m ²degradable natural environmental protection geotextiles, can protect soil and can meet environmental requirement again., can suit measures to local conditions than horn of plenty due to pool slag resource, adopt pool slag to carry out backfill, be laid on geotechnological layer of cloth 42 and form backfill pool slag blanket 43.Pool slag can prevent rain drop erosion and failure by piping, can improve again the self-purification capacity of water body, for the biologies such as fish under water, shrimp provide good living environment.In embodiment, the thickness of backfill pool slag blanket 43 is 200mm.

The top, slope 1 of the ecological revetment that the utility model provides is a platform, and this platform is also laid and formed by the pool slag of backfill.The toe 3 of ecological revetment is divided into three layers, and the bottom is toe geotechnique layer of cloth 31, and the geotextiles adopted is also 250g/m ²degradable natural environmental protection geotextiles.Being equipped with thick rock ballast bed course 32 on toe geotechnique layer of cloth 31, is the generous pin 33 of placed rockfill on thick rock ballast bed course 32.In embodiment, thick rock ballast bed course 32 thickness are 200mm, and the thickness of the generous pin 33 of placed rockfill is 500mm.

In sum, the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.

Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, be modified or be changed above-described embodiment.Therefore, have in technical field under such as and usually know that the knowledgeable modifies or changes not breaking away from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.

Claims

1. an ecological revetment, it is characterized in that: comprise top, slope (1), domatic (2) and toe (3), evenly be laid with a plurality of lattice ridge frames (41) that surrounded by the prefabricated reinforced concrete lattice ridge (4) on described domatic (2), described lattice ridge frame (41) bottom is equipped with geotechnological layer of cloth (42), is equipped with backfill pool slag blanket (43) on described geotechnological layer of cloth (42); Overlapped joints (5) between the described prefabricated reinforced concrete lattice ridge (4) is located the plain concrete into cast in situs.

2. ecological revetment according to claim 1 is characterized in that: described geotechnological layer of cloth (42) is degradable natural environment-friendly type geotechnique cloth.

3. ecological revetment according to claim 1, it is characterized in that: the main muscle on the described prefabricated reinforced concrete lattice ridge (4) stretches in the plain concrete of described overlapped joints (5).

4. ecological revetment according to claim 1, is characterized in that: water by plain concrete each the described overlapped joints (5) built up and have difformity.

5. ecological revetment according to claim 1, is characterized in that: the platform of described top, slope (1) for being laid to by backfill pool slag.

6. ecological revetment according to claim 1, it is characterized in that: described toe (3) bottom is toe geotechnique layer of cloth (31), be equipped with thick rock ballast bed course (32) on described toe geotechnique's layer of cloth (31), described thick rock ballast bed course (32) is upper is the generous pin of placed rockfill (33).