Levee crown structure adapting to differential settlement

Abstract

The utility model discloses an embankment top structure adapting to differential settlement. The embankment top structure comprises a concrete butt strap, a concrete sleeper beam, a geogrid, a concrete wave wall, a concrete diaphragm wall and an embankment top road surface. The left side of the concrete butt strap is placed on the concrete wave wall, the right side of the concrete butt strap is placed on the concrete sleeper beam, four asphalt felt cushion layers are arranged on the connecting face of the concrete butt strap and the concrete wave wall, and the concrete sleeper beam is placed on the embankment body filling soil. Two-way warp-knitted polyester geogrids are adopted as the geogrids, the geogrids comprise an upper geogrid and a lower geogrid, the lower geogrid is flatly laid on the embankment body filling soil, the left side end of the lower geogrid is extruded between the concrete butt strap and the concrete sleeper beam, and the upper geogrid is flatly laid between the embankment body filling soil and the embankment top pavement; the concrete anti-seepage wall is located on the lower portion of the concrete wave wall and rigidly connected with the concrete wave wall into a whole. According to the utility model, the differential settlement of the wave wall and the embankment body filling soil can be effectively adjusted, the embankment top pavement structure is prevented from cracking, and the overall quality of the embankment structure is ensured.

Description

Technical Field

[0001] The utility model relates to a dike top structure, in particular to a dike top structure which is provided with a concrete anti-seepage wall at the lower part of a concrete wave-breaking wall and can adapt to uneven settlement. Background Art

[0002] Under the condition that the land along the town is limited, it is economical and reasonable to set up a concrete wave-breaking wall on the water-facing surface of the embankment, which not only reduces the land occupation of the project, but also saves project investment. However, the wave-breaking wall and the embankment fill are prone to uneven settlement, causing cracks in the embankment road, especially when there is an anti-seepage wall structure at the bottom of the wave-breaking wall, the uneven settlement of the embankment may be more obvious. The main reasons are as follows: 1. At present, the mechanization level of embankment filling construction is high, the filling cycle is short, and the embankment fill cannot be consolidated. In the later consolidation process, it will produce large settlement; when there is a deep and weak soil layer in the embankment foundation, under the action of additional stress, the embankment foundation will produce large settlement, and the settlement consolidation cycle is long; 2. When there is an anti-seepage wall structure at the bottom of the wave-breaking wall, the structural settlement is small; therefore, the wave-breaking wall and the embankment will produce large uneven settlement, which will cause cracks in the embankment road surface and affect the safety of the embankment structure. Utility Model Content

[0003] The utility model provides a dike top structure adapting to uneven settlement, so as to solve the problem of cracking of dike top road surface caused by uneven settlement of wave-breaking wall and dike body proposed in the above background technology.

[0004] The technical solution adopted by the utility model is:

[0005] A levee crest structure adaptable to uneven settlement comprises a concrete slab, a concrete pillow beam, a geogrid, a concrete wave-breaking wall, a concrete anti-seepage wall and a levee crest pavement; the left side of the concrete slab is placed on the concrete wave-breaking wall, and the right side is placed on the concrete pillow beam, and the concrete pillow beam is placed on the levee body fill; the geogrid is provided with an upper and a lower two sections, the lower section is laid flat on the levee body fill, and the left end portion is squeezed between the concrete slab and the concrete pillow beam, and the upper section is laid flat between the levee body fill and the levee crest pavement; the concrete anti-seepage wall is located at the lower part of the concrete wave-breaking wall, and is rigidly connected to the concrete wave-breaking wall to form a whole.

[0006] Furthermore, concrete guide walls are provided on both sides of the concrete anti-seepage wall, and the concrete guide walls are temporary structures necessary for the construction of the anti-seepage wall.

[0007] Furthermore, the connection surface between the concrete slab and the concrete wave-breaking wall is provided with four layers of oil felt cushion.

[0008] Furthermore, the embankment top pavement is paved with a cement-stabilized crushed stone base layer, a lower sealing layer and an emulsified asphalt penetration layer, a coarse-grained asphalt concrete layer, an emulsified asphalt adhesive layer, and a fine-grained modified asphalt concrete layer in sequence from bottom to top, and granite curbs are provided on both sides of the embankment top pavement; the granite curbs are flat curbs.

[0009] Furthermore, the geogrid is a bidirectional warp-knitted polyester geogrid.

[0010] Furthermore, a landscape guardrail is provided on the outer facade of the concrete wave-breaking wall.

[0011] Furthermore, green plants are planted on the embankment fill.

[0012] The construction process of this utility model is:

[0013] The concrete guide wall is a necessary temporary structure for the construction of the concrete anti-seepage wall. Only after the construction of the concrete guide wall is completed can the concrete anti-seepage wall be constructed by trenching in the embankment. After the head of the anti-seepage wall is chiseled off, the concrete wave-breaking wall can be constructed. The embankment fill needs to be filled and compacted in layers. When it is filled to the height of the wave-breaking wall structure, the concrete slab and concrete pillow beam are installed. The connection surface between the concrete slab and the wave-breaking wall is provided with four layers of oil felt cushion, and at the same time, a bidirectional warp-knitted polyester geogrid is laid on the embankment. The concrete slab can adjust the uneven settlement of the wave-breaking wall and the embankment to prevent cracking of the embankment top road surface due to uneven settlement. The concrete pillow beam is the foundation of the concrete slab, which evenly transfers the upper load of the concrete slab to the embankment soil. The bidirectional warp-knitted polyester geogrid can disperse the upper load and reduce the additional stress generated by the upper load. The bidirectional warp-knitted polyester geogrid is laid on the lower part of the embankment top road surface to disperse the embankment top road load and reduce the additional stress generated by the load. After the embankment top road structure is completed, the landscape guardrail and plant greening construction are carried out in accordance with the landscape requirements.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model evenly disperses the upper load and reduces the additional stress generated by the upper load by arranging structures such as concrete slabs, concrete pillow beams and bidirectional warp-knitted polyester geogrids between the concrete wave-breaking wall and the embankment fill.

[0016] 2. The utility model can effectively adjust the uneven settlement of the wave-breaking wall and the embankment body, prevent the cracking of the embankment top road surface caused by uneven settlement, ensure the overall quality of the embankment structure, reduce the subsequent operation and maintenance costs, and have good economy.

[0017] 3. The utility model has high structural durability, simple and reliable construction method, can shorten the construction period, reduce project investment, and has good adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural cross-sectional view of the utility model.

[0019] In the figure: 1. Concrete slab; 2. Concrete sleeper beam; 3. Bidirectional warp-knitted polyester geogrid; 4. Four-layer oil felt cushion; 5. Concrete wave-breaking wall; 6. Embankment top pavement; 61. Cement-stabilized crushed stone base; 62. Lower sealing layer and emulsified asphalt penetration layer; 63. Coarse-grained asphalt concrete layer; 64. Emulsified asphalt adhesive layer; 65. Fine-grained modified asphalt concrete layer; 7. Granite curbstone; 8. Landscape guardrail; 9. Concrete guide wall; 10. Concrete anti-seepage wall; 11. Embankment greening plants; 12. Embankment fill. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1 As shown, the utility model is a levee top structure adapting to uneven settlement, comprising a concrete slab 1, a concrete pillow beam 2, a bidirectional warp-knitted polyester geogrid 3, a concrete wave-breaking wall 5, a concrete anti-seepage wall 10, and a levee top road surface 6; the left side of the concrete slab 1 is placed on the concrete wave-breaking wall 5, and the right side is placed on the concrete pillow beam 2, the connecting surface of the concrete slab 1 and the concrete wave-breaking wall 5 is provided with four layers of oil felt cushion 4, and the concrete pillow beam 2 is placed on the levee body filling 12; the bidirectional warp-knitted polyester geogrid 3 is provided with an upper and a lower two-way, the lower way is laid flat on the levee body filling 12, the left end is squeezed between the concrete slab 1 and the concrete pillow beam 2, and the upper way is laid flat between the levee body filling 12 and the levee top road surface 6; the concrete anti-seepage wall 10 is located at the lower part of the concrete wave-breaking wall 5, and is rigidly connected to the concrete wave-breaking wall 5 to form a whole.

[0022] Concrete guide walls 9 are provided on both sides of the concrete anti-seepage wall 10, and the concrete guide walls 9 are temporary structures necessary for the construction of the anti-seepage wall.

[0023] The concrete anti-seepage wall 10 adopts C30 concrete structure, with a thickness of 80cm. After the wall head is chiseled off 50cm, the wave-breaking wall 5 is constructed. The wave-breaking wall 5 adopts C30 concrete structure. The concrete guide wall 9 assists the concrete anti-seepage wall 10 in trenching and excavation.

[0024] The embankment fill 12 needs to be filled and compacted in layers, and the compaction degree is greater than 0.95. When the embankment fill 12 reaches the structural elevation of the wave-breaking wall 5, the concrete slab 1 and the concrete pillow beam 2 are installed. The concrete slab 1 adopts C30 concrete structure with a thickness of 20cm, and the concrete pillow beam 2 adopts C30 concrete structure; the overlap length of the concrete slab 1 and the wave-breaking wall 5 is 45cm; the bidirectional warp knitted polyester geogrid 3, model GGR / PET / BK100-100.

[0025] The embankment top pavement 6 is paved with a 25 cm thick cement stabilized gravel base layer 61, a 1 cm thick lower sealing layer and an emulsified asphalt penetration layer 62, an 8 cm thick AC-25C coarse-grained asphalt concrete layer 63, an emulsified asphalt adhesive layer 64, and a 3 cm AC-13C fine-grained modified asphalt concrete layer 65 from bottom to top. Granite curbs 7 are provided on both sides of the embankment top pavement 6. Flat granite curbs 7 are provided. Landscape guardrails 8 are provided on the outer facade of the concrete wave-breaking wall. Green plants 11 are planted on the embankment body fill 12.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dike top structure adapted to uneven settlement, characterized in that: It includes a concrete slab, a concrete pillow beam, a geogrid, a concrete wave-breaking wall, a concrete anti-seepage wall, and a levee top road surface; the left side of the concrete slab is placed on the concrete wave-breaking wall, and the right side is placed on the concrete pillow beam, and the concrete pillow beam is placed on the levee body fill; the geogrid is provided with an upper and a lower two layers, the lower layer is laid flat on the levee body fill, and the left end portion is squeezed between the concrete slab and the concrete pillow beam, and the upper layer is laid flat between the levee body fill and the levee top road surface; the concrete anti-seepage wall is located at the lower part of the concrete wave-breaking wall, and is rigidly connected to the concrete wave-breaking wall to form a whole.

2. The dike top structure adapting to uneven settlement according to claim 1 is characterized in that: Concrete guide walls are arranged on both sides of the concrete anti-seepage wall, and the concrete guide walls are temporary structures necessary for the construction of the concrete anti-seepage wall.

3. The dike top structure adapting to uneven settlement according to claim 1 is characterized by: The connecting surface between the concrete slab and the concrete wave-breaking wall is provided with four layers of oil felt cushion layers.

4. The dike top structure adapting to uneven settlement according to claim 1 is characterized in that: The embankment top road surface is paved with a cement stabilized gravel base layer, a lower sealing layer and an emulsified asphalt penetration layer, a coarse-grained asphalt concrete layer, an emulsified asphalt adhesive layer, and a fine-grained modified asphalt concrete layer in sequence from bottom to top, and granite curbstones are provided on both sides of the embankment top road surface.

5. The dike top structure adapting to uneven settlement according to claim 1 is characterized by: A landscape guardrail is arranged on the concrete wave-breaking wall.

6. The dike top structure adapting to uneven settlement according to claim 1 is characterized by: Green plants are planted on the embankment fill.

7. The dike top structure adapting to uneven settlement according to claim 4 is characterized by: The granite side stone is a flat side stone.

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