Riverway revetment area overhead layer structure system and construction platform

Abstract

The application provides a riverway revetment area overhead layer structure system and a construction platform. The overhead layer structure system comprises: an overhead layer foundation structure arranged on a foundation and comprising a plurality of spaced-apart foundation units and a foundation beam group connecting the foundation units; an overhead layer structure arranged above the overhead layer foundation structure and comprising vertically supported frame columns, a frame beam group connecting the frame columns, and an overhead platform plate arranged at the top of the frame columns; the frame columns are provided with structure side plates around the frame columns for retaining soil and water; a wall structure is arranged above the frame beam group and extends along the extension direction of the riverway; and a soil covering layer is arranged above the overhead platform plate. The above system fundamentally eliminates the huge lateral soil pressure generated by the traditional high backfill scheme in the manner of "overhead instead of backfill", and completely avoids the risk of sliding, overturning and uneven settlement of the retaining wall and the wall caused by insufficient bearing capacity of the foundation.

Description

Technical Field

[0001] This invention belongs to the field of water conservancy engineering technology, and specifically relates to an elevated layer structure system for riverbank revetment and a steel cantilever scaffolding construction platform. Background Technology

[0002] Traditional methods for addressing the elevation difference between riverbanks and adjacent sites typically employ a "high backfill combined with retaining walls" approach. This approach relies on the retaining wall and its foundation directly bearing the lateral pressure of the entire backfill, placing high demands on the foundation's bearing capacity. Furthermore, under long-term high lateral earth pressure, the retaining wall is susceptible to slippage and overturning, leading to uneven settlement of the foundation above it and posing significant structural safety hazards. To address these issues, existing technologies have introduced alternative solutions using pile foundations to bear the load, with pile caps replacing part of the retaining wall. However, these solutions are essentially point or linear supports, failing to create a complete load-bearing system integrated with the site's function. They are not only costly but also struggle to control the settlement of the upper backfill soil itself.

[0003] In addition, during the construction of the above-mentioned water-side structures, it is usually necessary to use cofferdams to create dry construction conditions. However, cofferdam construction is complicated, time-consuming and costly. It can have negative impacts on river flood control, ecological environment and navigation, and the safety risks are also high in deep water or soft foundation conditions. It is difficult to meet the construction needs of urban rivers, ecologically sensitive areas or tight schedules. Summary of the Invention

[0004] To address the issues of high lateral earth pressure, high risk of foundation settlement for retaining walls and perimeter walls caused by traditional high backfill schemes, and the high cost, failure to form an integrated load-bearing system, inability to ensure long-term stability of the upper site, and increased load on riverbanks of existing alternative schemes, this invention provides an elevated structure system for riverbank areas and a steel cantilever scaffolding construction platform.

[0005] The technical solution of the present invention is as follows:

[0006] A riverbank revetment elevated structure system includes:

[0007] The elevated foundation structure is set on the ground and includes multiple spaced foundation units and foundation beam groups connecting the foundation units;

[0008] An elevated floor structure, set on the elevated floor foundation structure, includes vertically supporting frame columns, frame beam assemblies connecting the frame columns, and an elevated platform slab set on the top of the frame columns; the frame columns are provided with structural side panels around them for retaining soil and water.

[0009] The wall structure is located above the frame beam group and is arranged along the direction of the river channel.

[0010] The soil cover layer is located above the elevated platform slab and on the side of the enclosure structure facing away from the river center.

[0011] Furthermore, the foundation unit is an independent column foundation or a pile cap foundation; the foundation beam group includes foundation beams, transverse foundation beams and longitudinal foundation beams that are arranged in a cross manner, and the transverse foundation beams and longitudinal foundation beams connect adjacent foundation units; the interconnected foundation beams, transverse foundation beams, longitudinal foundation beams and foundation units constitute the load-bearing skeleton of the elevated floor foundation structure.

[0012] Furthermore, the frame beam group includes transverse frame beams, edge longitudinal frame beams, and central longitudinal frame beams. The frame columns are supported on the foundation beam group and are rigidly connected to the frame beam group. The frame columns, transverse frame beams, edge longitudinal frame beams, and central longitudinal frame beams constitute the load-bearing frame of the elevated floor structure.

[0013] Furthermore, the wall structure includes a wall foundation and a wall body. The wall foundation is a brick foundation or a concrete strip foundation, and the wall body is a brick wall, a metal fence, or a combination of both.

[0014] Furthermore, when the foundation of the wall is a brick foundation, a structural column is provided above the longitudinal frame beam at the edge below the wall, and the structural column extends upward into the wall body and forms an integral part of the wall body.

[0015] Furthermore, the thickness of the soil cover layer is 300mm-500mm.

[0016] A steel cantilever scaffolding construction platform for constructing the elevated floor structure system of the riverbank revetment area as described in any of the above claims, comprising:

[0017] The cantilevered steel beam structure includes several steel beams arranged at intervals. The front end of the steel beam is anchored to the riverbank structure through anchors to form a front anchor point, and the rear end is anchored to the completed independent foundation under the column or pile cap foundation to form a rear anchor point.

[0018] The scaffolding system is set up on the cantilevered steel beam structure.

[0019] Furthermore, the cantilevered steel beam structure adopts a flat cantilever beam arrangement.

[0020] Furthermore, the anchors at the front end of the steel beam are either drilled rebars or embedded parts pre-embedded in the riverbank structure; the rear end of the steel beam is anchored by anchors pre-embedded in concrete fixed piers.

[0021] Furthermore, the cantilevered steel beam structure is a removable structure; the steel beam has a cutable and recyclable section exposed outside the elevated structure system of the riverbank area; and / or, the steel beam is provided with a removable waterproof sleeve when passing through the structural side plate or foundation of the elevated structure, and a sealing and water-stopping structure is provided between the sleeve and the cantilevered steel beam.

[0022] The beneficial effects of this invention are as follows:

[0023] The adoption of an elevated structure system integrated with the retaining wall in the riverbank revetment area effectively overcomes the technical shortcomings of traditional high-backfill schemes, such as enormous lateral earth pressure, high risk of settlement of the retaining wall and foundation, and the failure of existing alternatives to form an integrated load-bearing system, ensuring long-term stability of the upper site, and increasing the load on the riverbank revetment. It has the following technical advantages:

[0024] 1. This invention constructs a rigid spatial load-bearing framework consisting of an "elevated foundation structure + elevated structure + wall structure," fundamentally eliminating the enormous lateral earth pressure generated by traditional high backfill schemes through "elevated replacement of backfill." This completely avoids the risks of slippage, overturning, and uneven settlement of retaining walls and walls due to insufficient foundation bearing capacity. Simultaneously, the wall foundation and elevated structure form an integrated force transmission system, uniformly transferring the load of the superstructure and wall to the foundation through frame columns, foundation units, and foundation beams. This provides an overall, uniform, and stable support foundation for the upper site, effectively overcoming the shortcomings of existing alternative schemes such as difficult control of superstructure settlement and incomplete support systems. This significantly improves the long-term safety and durability of the revetment area and the upper site.

[0025] 2. This invention also provides a highly efficient construction platform that allows for the creation of a water-side working face without the need for temporary cofferdams. This platform cleverly utilizes the permanent structure itself as a load-bearing fulcrum by employing a cantilevered steel beam structure, directly eliminating the drawbacks of traditional cofferdam methods, such as complex procedures, long cycles, high costs, and potential damage to the river's ecosystem. It also enables the non-destructive disassembly and reuse of the steel beams, significantly improving the efficiency of water-side operations and reducing overall construction costs. It is particularly suitable for urban rivers, ecologically sensitive areas, and projects with tight schedules. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an elevated structure system for a riverbank revetment area provided in an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the elevated foundation structure of an elevated structure system for a riverbank revetment area provided in an embodiment of this application;

[0028] Figure 3This is a schematic diagram of the elevated structure of a riverbank revetment elevated structure system provided in an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the wall structure of an elevated floor structure system for a riverbank revetment area provided in an embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the wall structure of a riverbank revetment elevated floor structure system provided in this application embodiment, with the wall foundation using a brick foundation;

[0031] Figure 6 This is a schematic diagram of a steel cantilever scaffolding construction platform for constructing an elevated structure system for a riverbank revetment area, provided in an embodiment of this application.

[0032] In the diagram: 1. Riverbank revetment structure; 2. Foundation beam; 3. Structural side plate; 4. Frame column; 5. Edge longitudinal frame beam; 6. Elevated platform slab; 7. Transverse frame beam; 8. Independent foundation under column; 9. Transverse foundation beam; 10. Foundation; 11. Longitudinal foundation beam; 12. Central longitudinal frame beam; 13. Fixed pier; 14. Front anchor point; 15. Steel beam; 16. Guardrail; 17. Scaffold plank; 18. Toe board; 19. Protective net; 20. Scaffold upright; 21. Brick foundation; 22. Structural column. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0034] Example 1:

[0035] refer to Figures 1-5 This embodiment provides a riverbank revetment elevated layer structure system, including an elevated layer foundation structure, an elevated layer structure, a wall structure, and a soil cover layer.

[0036] The elevated foundation structure is set on the foundation 10 and includes multiple spaced foundation units and foundation beam assemblies connecting the foundation units. The elevated foundation structure is located on the treated stable foundation 10. The foundation units include independent column foundations 8 or pile cap foundations. Under shallow soil conditions with good quality, independent column foundations 8 are significantly cheaper and easier to construct than pile cap foundations; therefore, this embodiment uses independent column foundations 8. The foundation beam assemblies include intersecting foundation beams 2, transverse foundation beams 9, and longitudinal foundation beams 11. The foundation beams 2 are located on the side of the riverbank structure 1, with both ends connected to the transverse foundation beams 9, thus the transverse foundation beams 9 are spaced apart. The extension direction of the transverse foundation beams 9 is consistent with the direction of the river center, and the extension directions of the foundation beams 2 and the longitudinal foundation beams 11 are consistent with the direction of the river extension. The interconnected foundation beams 2, transverse foundation beams 9, longitudinal foundation beams 11, and foundation units constitute the load-bearing skeleton of the elevated foundation structure, forming the first force transmission system.

[0037] The elevated floor structure is set on the elevated floor foundation structure and includes vertically supporting frame columns 4, frame beam assemblies connecting the frame columns 4, and an elevated platform slab 6 set on top of the frame columns 4. The frame beam assemblies include transverse frame beams 7, edge longitudinal frame beams 5, and central longitudinal frame beams 12. The frame columns 4 are supported on the foundation beam assemblies and rigidly connected to them. Structural side panels 3 are provided around the frame columns 4. The structural side panels 3 can be brick walls, enclosing the elevated floor structure and the elevated floor foundation structure into a closed space to prevent river water and surrounding fill from entering, serving as retaining walls and preventing water intrusion. The extension direction of the transverse frame beams 7 is consistent with the direction of the river center, and the extension directions of the edge longitudinal frame beams 5 and the central longitudinal frame beams 12 are both consistent with the direction of the river channel. The frame columns 4, transverse frame beams 7, edge longitudinal frame beams 5, and central longitudinal frame beams 12 constitute the load-bearing frame of the elevated floor structure, forming a second force transmission system.

[0038] The wall structure is located above the frame beam assembly and is arranged along the direction of the river channel. The wall structure includes a wall foundation and a wall body. The wall foundation is a brick foundation 21 or a concrete strip foundation, and the wall body is a brick wall, a metal fence, or a combination of both. The wall foundation and the longitudinal frame beams 5 at the edge of the elevated floor are connected by cast-in-place or high-strength bolts to form a rigid whole, making the wall an integral part of the elevated floor structure rather than an additional load, which greatly improves its resistance to lateral displacement and uneven settlement.

[0039] As a preferred embodiment, when the foundation of the wall is a brick foundation 21, a structural column 22 is provided above the longitudinal frame beam 5 at the edge below the wall. The bottom of the brick foundation 21 can be made of sand-lime bricks, and the top is capped. The structural column 22 is made by casting according to predetermined parameters and specifications. The structural column 22 extends upward into the wall and forms an integral part with the wall.

[0040] The soil cover layer is placed above the elevated platform slab 6 and on the side of the enclosure structure facing away from the river center. The thickness of the soil cover layer is strictly controlled between 300mm and 500mm, as the lateral pressure generated by this thickness is negligible.

[0041] As a preferred implementation, to prevent the soil cover layer from being corroded by the infiltration of rainwater or irrigation water to the overhead platform slab 6 and frame beams below, the boundary of the soil cover layer on the overhead platform is strictly defined. This can be achieved through a systematic design using structural measures such as drainage layers and filter layers to ensure its functionality and durability.

[0042] Based on the first and second force transmission systems, this embodiment ultimately constructs a rigid spatial load-bearing skeleton consisting of an "elevated foundation structure + elevated structure + wall structure." By using an "elevated structure instead of backfill," it fundamentally eliminates the enormous lateral earth pressure generated by traditional high backfill schemes, completely avoiding the risks of slippage, overturning, and uneven settlement of the retaining wall and wall due to insufficient bearing capacity of the foundation 10. Simultaneously, the wall foundation and elevated structure form an integrated force transmission system, uniformly transferring the load of the upper soil cover and wall to the foundation 10 through frame columns 4, foundation units, and foundation beams. This provides an overall, uniform, and stable support foundation for the upper site, effectively overcoming the shortcomings of existing alternative schemes such as difficult control of upper soil settlement and incomplete support systems, significantly improving the long-term safety and durability of the revetment area and the upper site.

[0043] Example 2

[0044] Based on the elevated structure system of the riverbank revetment area in Example 1, which is constructed using cast-in-place concrete, the construction steps of this example are as follows:

[0045] Step 1: Construct the foundation structure of the elevated floor.

[0046] First, based on the design drawings, on-site surveying and layout were completed to accurately locate the positions of each column's independent foundation 8. Then, the foundation pit was excavated and the foundation 10 was treated to ensure the bearing capacity of the base met the design requirements. Next, foundation reinforcement bars were tied in the foundation pit, foundation formwork was erected, and column dowel bars were pre-embedded. After acceptance, foundation concrete was poured and cured, forming a stable system of spaced, distributed column independent foundations 8.

[0047] Step 2: Construct frame columns 4, frame beams, and overhead platform slabs 6.

[0048] The upper framework construction proceeded from bottom to top, sequentially erecting frame columns 4, transverse frame beams 7, edge longitudinal frame beams 5, central longitudinal frame beams 12, and the elevated platform slab 6, with reinforcement tied strictly according to design specifications. Subsequently, frame columns 4, transverse frame beams 7, edge longitudinal frame beams 5, central longitudinal frame beams 12, and the elevated platform slab 6 were poured either integrally or in layers. After pouring, timely covering and moisture curing were carried out until the design strength was reached. Simultaneously, frame columns 4 were enclosed by brick walls, forming a closed space between the elevated floor structure and its foundation structure.

[0049] Step 3: After the elevated platform reaches the required curing strength, construct the foundation and wall of the construction fence.

[0050] After the concrete of the elevated platform slab 6 has fully reached the design specifications, construction of the upper wall structure can begin. The wall foundation formwork is erected at the designated location on the edge longitudinal frame beam 5, and reinforcing bars are tied to ensure a reliable connection with the pre-reserved reinforcing bars on the edge longitudinal frame beam 5. The wall foundation concrete is then poured. Once the foundation has reached its strength, the wall itself is continued to be built or poured upwards, thus forming an integrated force transmission system that rigidly connects the wall and the elevated platform structure.

[0051] Step four: Finally, backfill the designated area on the platform with soil.

[0052] After the perimeter wall structure is completed and the overall structure is stable, the soil covering construction will be carried out on top of the elevated platform slab 6. Before construction, a waterproof layer must be completed on the platform surface, followed by the laying of a drainage layer and a filter layer. Subsequently, planting soil will be backfilled in layers on top of the filter layer, strictly controlling the thickness and boundary range of the soil covering, and finally completing the construction of the entire elevated structure system of the riverbank revetment area.

[0053] The construction method in this embodiment fundamentally avoids large-scale backfilling on the riverbank, eliminating the source of large lateral forces at the source and significantly reducing structural costs. The backfill soil is no longer a load-bearing medium, but merely a carrier for greening or landscaping functions. The entire load of the wall is directly transferred to the deep, stable foundation 10 through a rigid structural path, completely bypassing the unstable backfill soil. By adjusting the construction sequence, the "structural load-bearing system" and "backfilling work" are completely separated in time. After the elevated platform slab 6 is poured and cured, backfilling is carried out on top, and the backfill soil no longer has any adverse settlement impact on the wall foundation.

[0054] Example 3

[0055] Based on the elevated structure system of the riverbank revetment area in Example 1, it is constructed using a combination of factory prefabrication and on-site assembly. The specific implementation steps are as follows:

[0056] Step one: Standardized prefabrication of components in the factory. In the factory, the elevated structure is modularly disassembled according to the design drawings, and core load-bearing components such as frame columns 4, frame beams, elevated platform slabs 6, and perimeter wall foundations are prefabricated in a centralized and standardized manner. Components that cannot be disassembled are cast in place.

[0057] Step two: Component transportation and on-site foundation placement. Precast components that have passed curing and inspection are transported to the construction site.

[0058] Step 3: Efficient on-site assembly and node connection. The precast frame columns 4, transverse frame beams 7, edge longitudinal frame beams 5, central longitudinal frame beams 12, and the overhead platform slab 6 are hoisted in sequence, and reliable rigid connections of each component node are achieved through techniques such as sleeve grouting, high-strength bolts, or prestressing.

[0059] Step 4: Fence assembly and backfilling. The prefabricated fence components are hoisted and anchored integrally with the platform slab. Then, waterproofing, drainage, and filtration layers are laid in sequence, and the backfill is completed in layers.

[0060] This embodiment utilizes a prefabricated construction method with factory production, significantly reducing on-site wet work such as formwork, rebar tying, and concrete pouring. This effectively reduces construction noise, dust pollution, and construction waste, minimizing material waste and highly aligning with the environmental protection requirements of urban waterways and ecologically sensitive areas. The standardized production of prefabricated components and mechanized on-site assembly greatly shorten the construction cycle, and the quality of the components is unaffected by on-site weather and human factors, significantly improving the overall quality and structural durability of the project.

[0061] Example 4

[0062] refer to Figure 6 This embodiment provides a steel cantilever scaffolding construction platform for constructing an elevated structure system for a riverbank revetment area. The construction platform is located on the side adjacent to the river and includes a cantilever steel beam structure and a scaffolding system.

[0063] The cantilevered steel beam structure includes several spaced steel beams 15. The steel beams 15 are arranged in a flat cantilever manner. Their front ends are reliably connected to the riverbank revetment structure 1 through drilling and rebar installation or pre-embedded parts to form a front anchorage point 14. The rear ends are anchored to the concrete fixed piers 13 set in the completed column independent foundation 8 or pile cap foundation to form a rear anchorage point.

[0064] As a preferred implementation, when the steel beam 15 passes through the foundation of the elevated floor or the brick wall, a detachable waterproof sleeve is added, and the surrounding area is sealed and waterproofed to ensure structural durability and construction safety.

[0065] A standard scaffolding system is erected above the cantilevered steel beam structure, including guardrails 16, footboards 17, toe boards 18, safety nets 19, and scaffolding uprights 20, to provide a working surface and safety protection. The bottom of the scaffolding is fully covered with footboards 17 and enclosed, and standardized protective fences are set up around the perimeter to form a fully enclosed working environment to prevent materials from falling.

[0066] The scaffolding system can be completely dismantled after the construction of the elevated floor structure system is completed, and the exposed steel beams 15 can be cut and recycled, thus achieving effective separation between the temporary structure and the permanent structure.

[0067] The construction method in this embodiment avoids the complex procedures, long construction period and high cost of traditional cofferdam construction. It is especially suitable for working conditions with high requirements for river protection and limited working space, and has significant advantages such as fast construction, economic rationality and minimal impact on the river.

[0068] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A riverbank revetment elevated structure system, characterized in that, include: The elevated foundation structure is set on the ground and includes multiple spaced foundation units and foundation beam groups connecting the foundation units; An elevated floor structure, set on the elevated floor foundation structure, includes vertically supporting frame columns, frame beam assemblies connecting the frame columns, and an elevated platform slab set on the top of the frame columns; the frame columns are provided with structural side panels around them for retaining soil and water. The wall structure is located above the frame beam group and is arranged along the direction of the river channel. The soil cover layer is located above the elevated platform slab and on the side of the enclosure structure facing away from the river center.

2. The elevated structure system for riverbank revetment as described in claim 1, characterized in that, The foundation unit is an independent column foundation or a pile cap foundation; the foundation beam group includes foundation beams, transverse foundation beams and longitudinal foundation beams that are arranged in a cross manner, and the transverse foundation beams and longitudinal foundation beams connect adjacent foundation units; the interconnected foundation beams, transverse foundation beams, longitudinal foundation beams and foundation units constitute the load-bearing skeleton of the elevated floor foundation structure.

3. The elevated structure system for riverbank revetment areas as described in claim 1, characterized in that, The frame beam group includes transverse frame beams, edge longitudinal frame beams, and central longitudinal frame beams. The frame columns are supported on the foundation beam group and are rigidly connected to the frame beam group. The frame columns, transverse frame beams, edge longitudinal frame beams, and central longitudinal frame beams constitute the load-bearing frame of the elevated floor structure.

4. The elevated structure system for riverbank revetment as described in claim 3, characterized in that, The wall structure includes a wall foundation and a wall body. The wall foundation is a brick foundation or a concrete strip foundation, and the wall body is a brick wall, a metal fence, or a combination of both.

5. The elevated structure system for riverbank revetment areas as described in claim 4, characterized in that, When the foundation of the wall is a brick foundation, a structural column is provided above the longitudinal frame beam at the edge below the wall. The structural column extends upward into the wall and forms an integral part of the wall.

6. The elevated structure system for riverbank revetment areas as described in any one of claims 1 to 5, characterized in that, The thickness of the soil cover layer is 300mm-500mm.

7. A steel cantilever scaffolding construction platform for constructing an elevated structure system for riverbank revetment areas as described in any one of claims 1 to 6, characterized in that, include: The cantilevered steel beam structure includes several steel beams arranged at intervals. The front end of the steel beam is anchored to the riverbank structure through anchors to form a front anchor point, and the rear end is anchored to the completed independent foundation under the column or pile cap foundation to form a rear anchor point. The scaffolding system is set up on the cantilevered steel beam structure.

8. The steel cantilever scaffolding construction platform as described in claim 7, characterized in that, The cantilevered steel beam structure adopts a flat cantilever beam arrangement.

9. The steel cantilever scaffolding construction platform as described in claim 7, characterized in that, The anchors at the front end of the steel beam are either drilled rebars or embedded parts pre-embedded in the riverbank structure; the rear end of the steel beam is anchored by anchors pre-embedded in concrete fixed piers.

10. The steel cantilever scaffolding construction platform as described in claim 7, characterized in that, The cantilevered steel beam structure is a removable structure; the steel beam has a cutable and recyclable section exposed outside the elevated structure system of the riverbank revetment area; and / or, the steel beam is provided with a removable waterproof sleeve when passing through the structural side plate or the foundation of the elevated structure, and a sealing and water-stopping structure is provided between the sleeve and the steel beam.

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