Beach subsea drainage pipe artificial reef disc protection structure

Abstract

According to the scheme, the protective structure comprises a foundation layer and a drainage structure, the foundation layer comprises geotechnical cloth, an inverted filter layer formed by gravel is laid on the geotechnical cloth, a block stone layer is laid on the inverted filter layer, gravel caulking is arranged in block stone gaps of the block stone layer, and the drainage structure is arranged above the block stone layer. The geotextile and gravel inverted filter layer is adopted on the foundation layer structure foundation, loss of sea sand below is prevented, the stability of the foundation is kept, meanwhile, the block stone layer is laid on the upper portion, the influence of uneven settlement of the beach soft foundation on the drainage pipe can be effectively reduced, and the drainage effect is improved. And the stability and durability of the coastal city rainwater pipe network subsea drainage pipe structure are obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a beach sea drainage pipe artificial reef protection structure belongs to beach sea drainage pipe protection structure technical field. BACKGROUND

[0002] After the implementation of rainwater and sewage separation in the municipal rainwater pipe network of coastal cities, rainwater can be discharged into the sea nearby. The traditional rainwater discharge method usually adopts direct connection of the rainwater pipeline to the vertical revetment on the coast, or constructs a masonry eight-character mouth on the coast for discharge. However, these traditional methods are relatively rigid in structure and are difficult to adapt to the soft foundation structure of the beach.

[0003] Specifically, due to the characteristics of low bearing capacity and easy tidal influence of the beach foundation, the traditional rainwater discharge outlet structure is prone to uneven settlement, cracking and other damage phenomena after long-term tidal erosion, and the sea drainage pipe structure exposed to the beach environment is prone to aging and other problems. These damages not only affect the structural safety and durability of the rainwater pipe, but also may adversely affect the surrounding beach ecological environment, increasing the cost and difficulty of later maintenance. SUMMARY

[0004] To solve the above problems, the utility model provides the following technical scheme:

[0005] A beach sea drainage pipe artificial reef protection structure, comprising a foundation layer and a drainage structure, the foundation layer comprises geotextile, the geotextile is paved with a gravel layer formed by gravel, the gravel layer is paved with a block stone layer, the block stone layer is provided with a gravel joint in the block stone gap, the drainage structure is arranged above the block stone layer, and a plurality of artificial reefs are arranged on the drainage structure.

[0006] As a further scheme of the utility model, the drainage structure comprises a bottom plate paved above the block stone layer, the bottom plate is provided with a drainage pipeline, and the drainage pipeline is covered with a rubble concrete layer.

[0007] As a further scheme of the utility model, the bottom plate is formed by laying reinforced concrete, and the rubble concrete layer is wrapped by rubble stacking and concrete joint filling.

[0008] As a further scheme of the utility model, the gravel layer is formed by laying gravel with a particle size of 5mm to 20mm, the block stone layer is formed by laying block stones with a mass of 10kg to 100kg, and the block stone layer is filled with gravel.

[0009] As a further scheme of the utility model, the drainage structure further comprises a dropwell and a masonry eight-character mouth, the dropwell is connected to the land side of the drainage pipeline, and the masonry eight-character mouth is connected to the sea side of the drainage pipeline.

[0010] As a further scheme of the utility model, the foundation layer is inclined downward to the front of the stone eight-character mouth, and the part of the foundation layer in front of the stone eight-character mouth and on the top is paved with large stone surface protection.

[0011] As a further scheme of the utility model, the large stone surface protection is paved with stones with a mass greater than 300 kg.

[0012] As a further scheme of the utility model, the rubble concrete layer is in isosceles trapezoidal shape, and the surface of the rubble concrete layer is provided with a plurality of artificial reef platforms.

[0013] As a further scheme of the utility model, the top of the sea side of the artificial reef platform is provided with a fence, and the fence comprises a plurality of vertical columns arranged on the top of the artificial reef platform, and iron chains are connected between adjacent vertical columns.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By using geotextile and gravel inverted filter layer on the foundation layer structure base, the filtering effect is enhanced, the loss of sea sand under the pipe due to tidal action is prevented, and the stability of the foundation is maintained; meanwhile, a layer of stone layer is paved on the upper side, and the gravel is used for caulking treatment, which can effectively reduce the influence of uneven settlement of the soft foundation of the beach on the drainage pipe, and significantly improve the stability and durability of the rainwater pipe network drainage pipe structure of the coastal city.

[0016] 2. By arranging the artificial reef platform on the surface of the rubble concrete layer, the corrosion and aging resistance of the surface of the drainage structure is enhanced, the drainage structure and the surrounding environment of the beach are more integrated, and the aesthetic property is improved.

[0017] 3. The bottom of the drainage structure is paved with reinforced concrete bottom plate, the isolation effect of the drainage structure and the lower side is strengthened, the direct impact of tidal water on the drainage pipe is effectively dispersed and relieved, and the drainage structure can be arranged flat. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of the cross section of the embodiment.

[0019] Figure 2 It is a side view of the cross section of the embodiment.

[0020] Figure 3 It is a schematic view after the fence is installed.

[0021] REFERENCE SIGNS:

[0022] 1, foundation layer; 101, geotextile; 102, inverted filter layer; 103, block stone layer; 2, drainage structure; 201, bottom plate; 202, drainage pipeline; 203, rubble concrete layer; 3, drop well; 4, masonry eight-shaped mouth; 5, large block stone pavement; 6, artificial reef; 7, fence; 8, beach. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the following will be further described in detail with reference to the drawings and in connection with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0025] A beach drainage pipeline artificial reef protection structure, as shown in Figure 1 and Figure 2 shown, comprising a foundation layer 1 and a drainage structure 2, the foundation layer 1 comprises geotextile 101, the geotextile 101 is paved with gravel to form an inverted filter layer 102, the inverted filter layer 102 is paved with a block stone layer 103, the block stone layer 103 is provided with gravel jointing in the block stone gap, the gap is filled with gravel, and the drainage structure 2 is arranged above the block stone layer 103.

[0026] The drainage structure 2 comprises a bottom plate 201 paved above the block stone layer 103, the bottom plate 201 is provided with a drainage pipeline 202, the drainage pipeline 202 is covered with a rubble concrete layer 203, and the drainage pipeline 202 is wrapped in the middle of the rubble concrete layer 203. In the embodiment, the bottom plate 201 is paved to form a reinforced concrete, preferably C30 reinforced concrete, and the paving thickness is 300 mm. The rubble concrete layer 203 is wrapped with rubble and C25 concrete jointing, and the rubble concrete layer 203 is arranged in an isosceles trapezoidal structure, the upper bottom width is not less than the outer diameter width of the drainage pipeline 202, and the slope is set to 1:1.25.

[0027] The inverted filter layer 102 is paved with gravel with a particle size of 5 mm to 20 mm, and the block stone layer 103 is paved with block stone with a mass of 10 kg to 100 kg. The inverted filter layer 102 is backfilled with large block stone and gravel jointing; the reinforced concrete bottom plate 201 is arranged on the block stone cushion layer, which can effectively reduce the influence of uneven settlement of the soft foundation of the beach on the drainage pipeline.

[0028] The drainage structure 2 further comprises a drop well 3 and a masonry eight-shaped opening 4, the drop well 3 is connected to the land side of the drainage pipe 202, and the masonry eight-shaped opening 4 is connected to the sea side of the drainage pipe 202. The drainage pipe 202 adopts a Dn2200 reinforced concrete drainage pipe, the drop well 3 is connected to the end of the municipal rainwater pipe network on the land side, and the masonry eight-shaped opening 4 is arranged at the end on the sea side.

[0029] The foundation layer 1 is arranged downwardly and obliquely forward the masonry eight-shaped opening 4, and the specific oblique angle is matched with the slope of the beach 8. The part of the foundation layer 1 located in front of the masonry eight-shaped opening 4 and the top is paved with a large stone pavement 5, the large stone pavement 5 is formed by paving the stones with a mass greater than 300 kg, and the thickness of the large stone pavement 5 is 1000 mm in the embodiment.

[0030] The surface of the rubble concrete layer 203 is provided with a plurality of artificial reef platforms 6, the surface of the rubble concrete layer 203 is covered by the artificial reef platforms 6, so that the drainage structure 2 is more integrated with the environment of the beach 8, and the corrosion and aging resistance can be further improved.

[0031] The artificial reef platform 6 is welded into a shaped framework according to the required shape of the reef platform, and is fixed to the rubble concrete layer 203 by expansion screws, the relief difference of the artificial reef platform 6 is controlled to be less than or equal to 60 cm, the shaped framework is welded by a 6mm*6mm iron mesh, and the artificial reef platform is formed by filling with fine stone concrete, and is integrated into the environment of the beach 8.

[0032] As shown in Figure 2 As shown in Figure 3 The sea side of the artificial reef platform 6, i.e. the location of the outlet, is provided with a fence 7, the fence 7 comprises a plurality of vertical columns arranged on the top end of the artificial reef platform 6, and iron chains are connected between adjacent columns. In the embodiment, a notch is reserved on the top of the artificial reef platform 6, the column is inserted into the notch, the column protrudes 600 mm from the top end of the artificial reef platform 6, the spacing between adjacent columns is 1000 mm, and the iron chain is anchored into the column by expansion bolts.

[0033] The implementation process of the embodiment is as follows:

[0034] The geotextile 101 is laid on the excavated and leveled foundation; 500 mm thick gravel with a particle size of 5 to 20 mm is backfilled; 500 mm thick block stones with a mass of 10 to 100 kg are backfilled (the gravel is filled with joint sealing); a 300 mm thick C30 reinforced concrete bottom plate 201 is cast in place, the rubble concrete is used as the foundation to wrap the drainage pipe 202, the drop well 3 is connected to the end of the municipal rainwater pipe network on the land side, the masonry eight-shaped opening 4 is connected to the sea side, and the artificial reef platform 6 is covered on the surface after the rubble concrete layer 203 is poured.

[0035] Those skilled in the art should understand that the discussion of any above-mentioned embodiment is merely exemplary and is not intended to suggest that the scope (including claims) of the present embodiments is limited to these examples; under the thought of the present embodiments, the above-mentioned embodiments or technical features in different embodiments can also be combined, and there are many other changes of different aspects of the present embodiments as above. In order to be brief, they are not provided in details. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiments should be included in the protection scope of the present embodiments.

Claims

1. A beach outfall pipe artificial reef defence structure characterised by: The application relates to a foundation layer and a drainage structure, wherein the foundation layer comprises geotextile, a filter layer formed by gravel is laid on the geotextile, a block stone layer is laid on the filter layer, and the block stone layer is embedded with gravel joints; the drainage structure is arranged above the block stone layer; and a plurality of artificial reefs are arranged on the drainage structure.

2. A beach outfall pipe artificial reef breakwater structure according to claim 1, characterised in that: The drainage structure comprises a bottom plate arranged above the block stone layer, and a drainage pipeline is arranged on the bottom plate and covered with a layer of rubble concrete.

3. A beach outfall pipe artificial reef breakwater structure according to claim 2, characterised in that: The bottom plate is formed by reinforced concrete, and the layer of rubble concrete is formed by piling up rubble and filling joints with concrete.

4. A beach pipe artificial reef breakwater structure according to claim 1, wherein: The filter layer is formed by gravel with a particle size of 5-20 mm, and the block stone layer is formed by block stones with a mass of 10-100 kg.

5. A beach outfall pipe artificial reef breakwater structure according to claim 2, characterised in that: The drainage structure further comprises a dropwell and a brick eight-shaped mouth, the dropwell is connected to the land side of the drainage pipeline, and the brick eight-shaped mouth is connected to the sea side of the drainage pipeline.

6. A beach outfall pipe artificial reef breakwater structure according to claim 5 wherein: The foundation layer is arranged downwardly and obliquely towards the front of the brick eight-shaped mouth, the part of the foundation layer located in front of the brick eight-shaped mouth and at the top is paved with a large block stone pavement.

7. A beach outfall pipe artificial reef breakwater structure according to claim 6, characterised in that: The large block stone pavement is formed by block stones with a mass of more than 300 kg.

8. A beach pipe artificial reef breakwater structure according to claim 2, wherein: The layer of rubble concrete is in the shape of an isosceles trapezoid, and a plurality of artificial reefs are arranged on the surface of the layer of rubble concrete.

9. A beach pipe artificial reef breakwater structure according to claim 2, wherein: A fence is arranged on the artificial reefs on the sea side, the fence comprises a plurality of vertical columns arranged on the top of the drainage structure, and iron chains are arranged between adjacent columns.

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