CN210288273U

CN210288273U - Prestress centrifugal wood-like hydrophilic ecological bank protection structure

Info

Publication number: CN210288273U
Application number: CN201920993096.4U
Authority: CN
Inventors: 杨锦斌; 陈莘; 孟长安; 叶绪君; 吕凯
Original assignee: Nanjing Gianda Road & Bridge Construction Co ltd
Current assignee: Nanjing Gianda Road & Bridge Construction Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-04-10
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a prestressed centrifugal wood-like hydrophilic ecological bank protection structure, which comprises a prestressed centrifugal wood-like pile, a bank protection platform arranged at the rear side of the prestressed centrifugal wood-like pile and a turf slope protection arranged at the rear side of the bank protection platform; the revetment platform comprises a planting soil layer, a quartz sand layer, a gravel layer and an impermeable layer from top to bottom in sequence; the turf protection slope is a slope connecting the revetment platform and the original ground, a three-dimensional geonet is laid on the slope, and turf is planted in the three-dimensional geonet. In the water-enriching period of the utility model, river water is stored in the underground water layer (bank protection platform) outside the retaining wall (prestressed centrifugal wood-like pile); in the dry season, underground water returns to the river to play a role in supplementing flood and reducing dryness and adjusting water level, and the densely arranged revetment structure has beautiful appearance and good hydrophilicity and soil retaining property.

Description

Prestress centrifugal wood-like hydrophilic ecological bank protection structure

Technical Field

The utility model belongs to the technical field of ecological bank protection, concretely relates to hydrophilic ecological bank protection structure of imitative wood formula of prestressing force centrifugation.

Background

In recent years, the concept of 'ecological water engineering' in the construction of hydraulic engineering in China is gradually accepted by vast engineering technicians. More and more attention is paid to human-oriented design or human engineering idea. With the acceleration of urbanization, urban population and building density are increasing, and the natural environment of the area where the city is located is changed thoroughly. Today, people pay attention to harmonious relation between people and nature, the requirements of people on the environment are increasingly improved, and the river channel not only has basic functions of flood discharging, waterlogging draining, water storage and the like, but also has functions of landscape, ecology, response to the surrounding environment and the like. On the basis of ensuring flood prevention safety, the structural form of the revetment is gradually diversified by the single gravity type grouted block stone in the past. The combined ecological slope protection becomes a unique landscape in river regulation.

The traditional river retaining wall adopts rigid materials such as grouted rubbles or concrete slope protection structures, and the like, although the function of reinforcing the bank can be met, the traditional river retaining wall has poor durability and poor adaptability to small-scale deformation, and is easy to generate local damage, so that the traditional river retaining wall is more damaged, and the repair difficulty and cost are higher; in addition, the method is difficult to plant grass for greening, influences the landscape of the urban embankment, destroys the natural ecosystem, and is a by-product pollution of engineering. The water is easy to damage to different degrees due to the scouring action of rivers. For river reach with particularly serious scouring, the traditional river channel revetment can not effectively resist the influence caused by the impact force of rivers, and the traditional river channel renovation retaining wall method mostly adopts concrete or grouted sheet stones to harden the surface of the river channel side slope, the environmental compatibility is extremely poor, the curve-shaped composite permeable geotextile prestressed centrifugal wood-like hydrophilic ecological retaining wall construction method can greatly solve the contradictions, and the prestressed centrifugal wood-like pile structure has the advantages of good compactness, high strength, strong impact resistance, frost resistance, corrosion resistance, durability and the like, can meet the flood-proof retaining wall function, can restore the ecology, can improve the environmental landscape, is safe and quick in construction, saves cost, is reliable in quality, saves energy, protects the environment, and highlights the green construction concept, and has wide application prospect in slope protection engineering, particularly in water conservancy engineering.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a hydrophilic ecological bank protection structure of imitative wood formula of prestressing force centrifugation can satisfy the function of flood control bank protection, can resume ecology again, promote the environmental landscape, and construction safety is swift, practice thrift cost, reliable, energy-concerving and environment-protective, outstanding green construction theory.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a prestressed centrifugal wood-like hydrophilic ecological bank protection structure comprises a prestressed centrifugal wood-like pile, a bank protection platform arranged at the rear side of the prestressed centrifugal wood-like pile and a turf protection slope arranged at the rear side of the bank protection platform; the revetment platform comprises a planting soil layer, a quartz sand layer, a gravel layer and an impermeable layer from top to bottom in sequence; the turf protection slope is a slope connecting the revetment platform and the original ground, a three-dimensional geonet is laid on the slope, and turf is planted in the three-dimensional geonet.

Further, the filling height of the planting soil layer is 50-100 cm.

Further, the filling height of the quartz sand layer is 30-50cm, and the particle size of the quartz sand is 0.5-1.2 mm.

Furthermore, the gravel layer is paved in four layers, different gravels with the grain diameters of 2-4mm, 4-8mm, 8-16mm and 16-32mm are paved from top to bottom, and the height of each layer is 10 cm.

Furthermore, geotextile is laid on the impermeable layer.

Further, the gap between the prestressed centrifugal wood-like piles is not more than 20 mm.

Has the advantages that: 1. the high-strength concrete and the prestressed steel bar are centrifugally produced and manufactured, so that the bearing capacity is high, such as compression resistance, bending resistance, shearing resistance and the like.

2. Has little influence on the environment and can adapt to the deformation of foundation soil and the development of the surrounding environment in the future. The construction working surface is small, cofferdams and excavation are not needed, water operation can be carried out, and the influence of weather conditions such as flood season and the like is avoided.

3. The centrifugal wood-like pile structure can be used for prefabricating a reinforced concrete circular pile in advance, and is used for on-site pile pressing construction, so that the mechanization degree is high, the speed is high, and the construction period is shortened.

4. In the full-water period, river water permeates and is stored to an underground water layer (a bank protection platform) outside a retaining wall (a prestressed centrifugal wood-like pile); in the dry season, underground water returns to the river to play a role in supplementing flood and reducing dryness and adjusting water level, and the densely arranged revetment structure has beautiful appearance and good hydrophilicity and soil retaining property.

5. The dust, slurry and construction waste generated in the traditional construction are greatly reduced, and the noise is reduced; reduces the influence on the surrounding living environment, beautifies the landscape environment and has unique effect on the prominent green construction.

6. The pile-forming effect is beautiful, the natural ecological effect is good, the environment compatibility is realized, the ecological environment concept is introduced, and the comprehensive cost advantage is obvious. The construction floor area is small, the safety performance is high and reliable, and the later maintenance amount is small.

7. The wood-like pile is used for river regulation engineering, can meet the requirement of the overall anti-slip stability of the side slope, simulates a natural river, protects the biodiversity, increases the landscape heterogeneity, emphasizes the landscape personality, promotes the natural circulation, constructs the urban ecological environment corridor, and realizes the sustainable development of the landscape.

8. The revetment platform plants soil layer, quartz sand layer, gravel layer, barrier layer, has fine moisture infiltration and storage function.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the revetment platform of the present invention;

reference numbers in the figures: 1. prestressed centrifugal wood-like piles; 2. a bank protection platform; 2.1, an impermeable layer; 2.2, a gravel layer; 2.3, a quartz sand layer; 2.4, planting a soil layer; 3. grass protection slope; 4. and (5) the original ground.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the utility model comprises a prestressed centrifugal wood-like pile 1, a bank protection platform 2 arranged at the rear side of the prestressed centrifugal wood-like pile 1, and a turf revetment 3 arranged at the rear side of the bank protection platform 2; the turf revetment 3 is a slope connecting the revetment platform 2 and the original ground 4, a three-dimensional geonet is laid on the slope, and turf is planted in the three-dimensional geonet.

As shown in fig. 2, the bank protection platform 2 comprises a planting soil layer 2.4, a quartz sand layer 2.3, a gravel layer 2.2 and an impermeable layer 2.1 from top to bottom in sequence. The filling height of the planting soil layer 2.4 is 50-100 cm. The filling height of the quartz sand layer 2.3 is 30-50cm, and the particle size of the quartz sand is 0.5-1.2 mm. The gravel layer 2.2 is laid in four layers, different gravels with the grain diameter of 2-4mm, 4-8mm, 8-16mm and 16-32mm are laid from top to bottom, and the height of each layer is 10 cm. And the impermeable layer 2.1 is paved with geotextile.

The planting soil layer 2.4 can be made of 3% calcium superphosphate and 4% urea, and the compost-retted mushroom fertilizer or sawdust which is fully decomposed can be used as soil base fertilizer, and after fertilization, the compost and soil are fully mixed by turning over for 1 time about 30CM deep, so that the soil and the fertilizer are mixed, and the effects of improving soil nutrients, loosening the soil and well ventilating are achieved.

The prestressed centrifugal shore protection wood-like pile is a cement pile which is prefabricated by high-strength concrete and has the appearance similar to that of a wood pile. The mold with the tree texture template inside is integrally cast and formed, and wood grains are synchronously generated with the pile body by sticking rubber or steel grains on the pipe-mounted mold. The soil-filling pile is pressed into a soil layer through a pile pressing machine and arranged according to a certain density, the piles are densely arranged, and the gap is not more than 20 mm. So that it can function as a retaining wall. The tubular pile construction adopts one-time construction, adopts linear continuous arrangement, and is adhered with a layer of 300g/m2 geotextile, thereby preventing water and soil loss, and well resisting erosion of water flow to the revetment. The flexible processing can be realized at the position of the curve.

In the full-water period, river water permeates and is stored to an underground water layer (a bank protection platform) outside a retaining wall (a prestressed centrifugal wood-like pile); in the dry season, underground water returns to the river to play a role in supplementing flood and reducing dryness and adjusting water level, and the densely arranged revetment structure has beautiful appearance and good hydrophilicity and soil retaining property.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A prestressed centrifugal wood-like hydrophilic ecological bank protection structure is characterized by comprising a prestressed centrifugal wood-like pile (1), a bank protection platform (2) arranged at the rear side of the prestressed centrifugal wood-like pile (1), and a turf protection slope (3) arranged at the rear side of the bank protection platform (2); the revetment platform (2) is sequentially provided with a planting soil layer (2.4), a quartz sand layer (2.3), a gravel layer (2.2) and an impermeable layer (2.1) from top to bottom; the turf protection slope (3) is a slope connecting the revetment platform (2) and the original ground, a three-dimensional geonet is laid on the slope, and turf is planted in the three-dimensional geonet.

2. The prestressed centrifugal wood-like hydrophilic ecological revetment structure according to claim 1, wherein said planting soil layer (2.4) has a filling height of 50-100 cm.

3. The prestressed centrifugal wood-like hydrophilic ecological bank protection structure according to claim 1, wherein the filling height of the quartz sand layer (2.3) is 30-50cm, and the particle size of the quartz sand is 0.5-1.2 mm.

4. The prestressed centrifugal wood-like hydrophilic ecological bank protection structure according to claim 1, wherein the gravel layer (2.2) is laid in four layers, from top to bottom, with different gravels with the grain sizes of 2-4mm, 4-8mm, 8-16mm and 16-32mm, and the height of each layer is 10 cm.

5. A prestressed centrifugal wood-like hydrophilic ecological bank protection structure according to claim 1, characterized in that the impermeable layer (2.1) is laid with geotextile.

6. The prestressed centrifugal wood-like hydrophilic ecological revetment structure according to claim 1, wherein the gap between the prestressed centrifugal wood-like piles (1) is not more than 20 mm.