Double-pile type L-shaped embankment structure

Abstract

The utility model discloses a double-pile type L-shaped embankment structure which comprises pile foundations, a concrete cushion layer, an L-shaped wall body, handrails, a broken stone cushion layer and grouted rubble. The pile foundation is driven into an original embankment foundation, the concrete cushion layer is laid on the original embankment foundation, the L-shaped wall body is arranged on the concrete cushion layer, the upper end of the pile foundation penetrates through the concrete cushion layer into the L-shaped wall body, the side, close to a riverbed, of the L-shaped wall body is connected with the broken stone cushion layer, and the broken stone cushion layer is arranged on the riverbed. The rubble hardcore is provided with grouted rubble; backfill soil is arranged on the side, away from the riverbed, of the L-shaped wall body, and a road is arranged on the backfill soil; and the handrails are arranged on the L-shaped wall body. The double-pile type L-shaped embankment structure provided by the utility model aims to overcome the existing defects, is stable in structure, convenient to construct and low in manufacturing cost, and ensures the protection function of the embankment.

Description

Technical Field

[0001] This utility model relates to a double-pile L-shaped embankment structure. Background Technology

[0002] Riverbanks refer to the engineering facilities and natural landforms located on both sides of a river, used to restrain river water, prevent flooding, and protect the safety and stability of the surrounding area. The primary functions of riverbanks are to restrain river water, preventing it from flowing within the river channel, protecting cities, villages, farmland, and roads on both banks from flood damage, and reducing economic losses and casualties caused by floods. They can also resist water erosion and collapse, preventing soil erosion and maintaining the stability of the river channel, protecting the land resources and ecological environment around the riverbank. Riverbanks can serve as part of the urban transportation system; for example, roads on the top of the embankment can be used for vehicle traffic, and pedestrian and bicycle paths can be constructed to facilitate travel and leisure. They can also organize water traffic and provide facilities such as docks. Embankments are the transition zone between aquatic and terrestrial ecosystems, providing habitats and breeding grounds for numerous plants and animals, thus contributing to the maintenance of biodiversity. In addition, through reasonable planning and design, planting various plants and creating landscape features can create a beautiful waterfront landscape and improve the ecological environment quality and landscape effect of the city. Located at the edge of the city where water and land meet, it is the main space for people to carry out water activities. For example, setting up waterfront platforms, boardwalks, and cruise ship docks can meet people's needs for getting close to nature and leisure and entertainment.

[0003] Riverbanks are typically constructed along both sides of a river. To prevent these banks from being eroded and damaged by water, slope reinforcement is necessary. Traditional methods, such as masonry or wooden piles, are insufficient to handle sudden heavy rainfall or rapid river rises, leading to the loss of the bank's protective function and significant losses. Therefore, a double-pile L-shaped bank structure is proposed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to overcome the existing defects and provide a double-pile L-shaped embankment structure that is structurally stable, easy to construct, and low in cost, thus ensuring the embankment's protective function.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-pile L-shaped embankment structure, comprising pile foundations, a concrete cushion layer, an L-shaped wall, railings, a crushed stone cushion layer, and masonry blocks;

[0006] The pile foundation is driven into the original embankment foundation, the concrete cushion layer is laid on the original embankment foundation, the L-shaped wall is set on the concrete cushion layer, the upper end of the pile foundation penetrates the concrete cushion layer into the L-shaped wall, the L-shaped wall is connected to the crushed stone cushion layer on the riverbed side, the crushed stone cushion layer is placed on the riverbed, and mortar-grouted masonry blocks are set on the crushed stone cushion layer;

[0007] The L-shaped wall is backfilled on the side away from the riverbed, and a road is built on the backfill.

[0008] The railing is installed on the L-shaped wall.

[0009] Preferably, the pile foundation includes multiple pile foundations on the river-side and multiple pile foundations on the back-of-river side, and both the multiple pile foundations on the river-side and the multiple pile foundations on the back-of-river side are set within the original embankment foundation.

[0010] Preferably, the L-shaped wall includes a base plate and a vertical wall, with a reinforcing angle connecting the base plate and the vertical wall.

[0011] Preferably, multiple expansion joints are provided at equal intervals on the L-shaped wall, and rubber waterstops are provided in the expansion joints; the expansion joints are separated by polyethylene low-foaming sealant boards, and the two ends of the polyethylene low-foaming sealant boards are filled with two-component polysulfide sealant.

[0012] Preferably, the rubber waterstop is made of neoprene rubber.

[0013] Preferably, the crushed stone cushion layer includes a slope toe cushion layer and a sloping cushion layer, wherein the sloping cushion layer is connected to the vertical wall and the slope toe cushion layer is placed on the riverbed.

[0014] Preferably, the masonry blocks include slope toe masonry blocks and sloping masonry blocks, with the sloping masonry blocks placed on the sloping subbase; the slope toe masonry blocks are placed on the slope toe subbase.

[0015] Preferably, the backfill soil is cohesive soil.

[0016] Preferably, the road is made of reinforced concrete.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This double-pile L-shaped embankment structure involves setting piles driven into the original embankment foundation, laying a concrete cushion layer on the original embankment foundation, and setting an L-shaped wall on the concrete cushion layer. The upper end of the piles penetrates the concrete cushion layer into the L-shaped wall. The side of the L-shaped wall facing the riverbed is connected to a gravel cushion layer, which is placed on the riverbed. Mortar-grouted masonry blocks are placed on the gravel cushion layer. Backfill soil is set on the side of the L-shaped wall away from the riverbed, and a road is built on the backfill soil. The structure is stable, easy to construct, and low in cost, ensuring the embankment protection function. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the double-pile L-shaped embankment structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the pile foundation layout of this utility model;

[0021] Figure 3 This is a detailed view of the expansion joint connection of this utility model.

[0022] In the diagram: 1. Pile foundation; 1-1. Pile foundation on the riverside; 1-2. Pile foundation on the back side of the river; 2. Concrete cushion layer; 3. L-shaped wall; 3-1. Base slab; 3-2. Vertical wall; 3-3. Reinforcing corner; 4. Expansion joint; 5. Rubber waterstop; 6. Polyethylene low-foaming sealant board; 7. Two-component polysulfide sealant; 8. Railing; 9. Crushed stone cushion layer; 9-1. Slope toe cushion layer; 9-2. Sloping cushion layer; 10. Mortar-grouted rubble masonry; 10-1. Slope toe mortar-grouted rubble masonry; 10-2. Sloping mortar-grouted rubble masonry; 11. Riverbed; 12. Backfill soil; 13. Road. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 The double-pile L-shaped embankment structure includes pile foundations 1, a concrete cushion layer 2, an L-shaped wall 3, railings 8, a crushed stone cushion layer 9, and masonry blocks 10. Pile foundations 1 are driven into the original embankment foundation. A concrete cushion layer 2 is laid on the original embankment foundation, and an L-shaped wall 3 is constructed on top of the concrete cushion layer 2. The upper end of the pile foundation 1 penetrates the concrete cushion layer 2 into the L-shaped wall 3. The side of the L-shaped wall 3 facing the riverbed 11 is connected to the crushed stone cushion layer 9, which is placed on the riverbed 11. Masonry blocks 10 are placed on top of the crushed stone cushion layer 9. Backfill soil 12 is laid on the side of the L-shaped wall 3 facing away from the riverbed 11, and a road 13 is constructed on top of the backfill soil 12. Railings 8 are installed on the L-shaped wall 3. The railings 8 are 1.1m high and have a horizontal bar in the middle.

[0025] Specifically, pile foundation 1 includes multiple river-side pile foundations 1-1 and multiple river-backside pile foundations 1-2, both of which are located within the original embankment foundation. Both river-side pile foundations 1-1 and river-backside pile foundations 1-2 are bored cast-in-place piles with a diameter of 0.8m and a length of 16m, using C35 concrete. The spacing between river-side pile foundations 1-1 is 1.8m, and the spacing between river-backside pile foundations 1-2 is 3.6m, resulting in a total spacing of 2.2m between the two rows of pile foundations. Each pile foundation extends at least 0.1m into the bottom slab 3-1.

[0026] Specifically, concrete foundation 2 is C20 plain concrete, 15cm thick and 3.6m wide.

[0027] Specifically, the L-shaped wall 3 includes a base plate 3-1 and a vertical wall 3-2, with a reinforcing angle 3-3 connecting the base plate 3-1 and the vertical wall 3-2. The L-shaped wall 3 is made of C30 reinforced concrete and includes the base plate 3-1, the vertical wall 3-2, and the reinforcing angle 3-3. The base plate 3-1 is 0.6m thick and 3.4m wide; the vertical wall 3-2 is 0.4m thick and 4.5m high (including the thickness of the base plate 3-1); the reinforcing angle 3-3 is 0.3m wide and 0.6m high.

[0028] Specifically, multiple expansion joints 4 are set at equal intervals on the L-shaped wall 3, and rubber waterstops 5 are installed inside the expansion joints 4; the expansion joints 4 are separated by polyethylene low-foaming sealant 6, and the two ends of the polyethylene low-foaming sealant 6 are filled with two-component polysulfide sealant 7.

[0029] Specifically, expansion joints 4 are installed approximately every 10m to 15m, and rubber waterstops 5 are installed inside the expansion joints 4. Expansion joints 4 can be installed at locations where the cross-section changes or the foundation soil quality changes, as appropriate, but should not be installed at the corners of the embankment. Expansion joints 4 must be aligned vertically, with a joint width of 20mm. The joints are separated by polyethylene low-foaming sealant 6, and the outer perimeter is filled with two-component polysulfide sealant 7, with dimensions of 20mm x 20mm.

[0030] Specifically, rubber waterstop 5 is made of neoprene rubber. It meets the relevant requirements of "Polymer Waterproof Materials Part 2: Waterstops" (GB / T18173.2-2014), and the material properties meet the following requirements: tensile strength >10MPa, elongation at break >380%, hardness (Shore A) 60+5°, brittle temperature <-45℃, and the specification of the embankment rubber waterstop is CB300X8-20.

[0031] Specifically, the crushed stone cushion layer 9 includes a slope toe cushion layer 9-1 and a sloping cushion layer 9-2. The sloping cushion layer 9-2 is connected to the vertical wall 3-2, and the slope toe cushion layer 9-1 is placed on the riverbed 11. The crushed stone cushion layer 9 is 10cm thick, made of medium-coarse sand, and is placed on the riverbed 11. It includes a slope toe cushion layer 9-1 and a sloping cushion layer 9-2. The slope toe cushion layer 9-1 is 0.5m wide and parallel to the embankment. The sloping cushion layer 9-2 has a slope of 1:2, a horizontal projection width of 4.8m, and is connected to the vertical wall 3-2.

[0032] Specifically, the masonry 10 includes slope toe masonry 10-1 and sloping masonry 10-2. Sloping masonry 10-2 is placed on the sloping cushion layer 9-2; slope toe masonry 10-1 is placed on the slope toe cushion layer 9-1. Slope toe masonry 10-1 is placed on the slope toe cushion layer 9-1 and is centrally located, with a width of 0.3m, a height of 0.6m, and its top elevation is level with the riverbed elevation 11; sloping masonry 10-2 is 0.3m thick and is placed on the sloping cushion layer 9-2.

[0033] Specifically, the masonry blocks 10 are all made of fresh, hard, intact, high-strength, weather-resistant, and water-resistant igneous rock blocks. The thickness of a single block is not less than 20cm, the saturated compressive strength of the blocks is 4000×10⁴ Pa, and the specific gravity is greater than 2.6t / m³. The vertical laying method is adopted, so that the long side of the blocks is perpendicular to the riverbed, and the joints in the direction of travel should be staggered.

[0034] Specifically, backfill soil 12 is cohesive soil. Backfilling within the excavation area should be carried out in layers and compacted. The compaction method is roller compaction, with a compaction coefficient of not less than 0.97 and a thickness of 200mm to 300mm for each layer.

[0035] Specifically, road 13 is made of reinforced concrete. It is 15cm thick and has a single layer of steel mesh with a diameter of 8mm and a spacing of 15×15cm.

[0036] This double-pile L-shaped embankment structure involves driving piles 1 into the original embankment foundation, laying a concrete cushion layer 2 on the original embankment foundation, and then constructing an L-shaped wall 3 on the concrete cushion layer 2. The upper end of the piles 1 penetrates the concrete cushion layer 2 into the L-shaped wall 3. The side of the L-shaped wall 3 facing the riverbed 11 is connected to a gravel cushion layer 9, which is placed on the riverbed 11. Masonry blocks 10 are placed on the gravel cushion layer 9. Backfill soil 12 is laid on the side of the L-shaped wall 3 away from the riverbed 11, and a road 13 is built on the backfill soil 12. The structure is stable, easy to construct, and low in cost, ensuring the embankment's protective function.

[0037] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. Double-pile L-shaped embankment structure, characterized by, The pile foundation (1), the concrete cushion (2), the L-shaped wall body (3), the railing (8), the gravel cushion (9) and the mortar block (10) are included. The pile foundation (1) is driven into the original embankment foundation, the concrete cushion (2) is laid on the original embankment foundation, the L-shaped wall body (3) is arranged on the concrete cushion (2), the upper end of the pile foundation (1) penetrates through the concrete cushion (2) into the L-shaped wall body (3), the L-shaped wall body (3) is connected with the gravel cushion (9) on the riverbed (11) side, the gravel cushion (9) is arranged on the riverbed (11), and the mortar block (10) is arranged on the gravel cushion (9). The backfill soil (12) is arranged on the side, away from the riverbed (11), of the L-shaped wall body (3), and the road (13) is arranged on the backfill soil (12). The railing (8) is arranged on the L-shaped wall body (3).

2. The double-pile L-shaped levee structure according to claim 1, characterized by, The pile foundation (1) includes a plurality of river-side pile foundations (1-1) and a plurality of river-back pile foundations (1-2), and the plurality of river-side pile foundations (1-1) and the plurality of river-back pile foundations (1-2) are arranged in the original embankment foundation.

3. The double-pile L-shaped levee structure according to claim 1, characterized by, The L-shaped wall body (3) includes a bottom plate (3-1) and a vertical wall (3-2), and a reinforcing corner (3-3) is connected between the bottom plate (3-1) and the vertical wall (3-2).

4. The double-pile L-shaped levee structure according to claim 1, characterized by, A plurality of deformation joints (4) are arranged at equal distances on the L-shaped wall body (3), a rubber waterstop (5) is arranged in each deformation joint (4), low-foaming polyethylene filling plates (6) are arranged between the deformation joints (4), and two-component polysulfide sealing paste (7) is embedded at both ends of each low-foaming polyethylene filling plate (6).

5. The double-pile L-shaped levee structure according to claim 4, characterized by The rubber waterstop (5) is made of neoprene.

6. The double-pile L-shaped levee structure according to claim 3, characterized by The gravel cushion (9) includes a slope foot cushion (9-1) and a slope cushion (9-2), the slope cushion (9-2) is connected with the vertical wall (3-2), and the slope foot cushion (9-1) is arranged on the riverbed (11).

7. The double-pile L-shaped levee structure according to claim 6, characterized by The mortar block (10) includes a slope foot mortar block (10-1) and a slope mortar block (10-2), the slope mortar block (10-2) is arranged on the slope cushion (9-2), and the slope foot mortar block (10-1) is arranged on the slope foot cushion (9-1).

8. The double-pile L-shaped levee structure of claim 1, wherein, The backfill soil (12) is cohesive soil.

9. The double-pile L-shaped levee structure of claim 1, wherein, The road (13) is made of reinforced concrete.

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