A waterfront soft soil area pedestrian landscape bridge construction structure and a construction method thereof

Abstract

The present application relates to the technical field of bridge engineering, and discloses a kind of waterfront soft soil area pedestrian landscape bridge construction structure and its construction method, including lateral restraint foundation unit, longitudinal connection unit, anchoring unit, transverse connection unit and bridge deck railing unit, adopt the composite reinforcement scheme that plugging plate inserts into lateral restraint soft soil deformation, anchoring position pole penetrates component into bearing stratum, and the upper end of anchoring position pole is used as railing support component;By the upper and lower superimposed butt joint structure of connecting piece, the butt joint angle of adjacent components can be adjusted, and the linear bending adaptation of bridge body horizontal plane zigzag line shape is realized;Construction uses factory prefabrication, on-site assembly mode, and site leveling, plugging plate layout, longitudinal connection, anchoring rod, transverse splicing and bridge deck railing assembly are sequentially completed.The present application can effectively improve the stability of bridge body in soft soil foundation, adapt zigzag line shape special-shaped bridge body modeling, construction period is short, on-site operation amount is small, and it is suitable for various waterfront soft soil area zigzag line shape pedestrian landscape bridge engineering.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering technology, and in particular to a construction structure and construction method for a pedestrian landscape bridge in a waterfront soft soil area. Background Technology

[0002] With the rapid development of urban landscape construction, waterfront areas, as important public open spaces in cities, have increasingly higher requirements for the design and functional adaptability of pedestrian landscape bridges. Pedestrian landscape bridges have gradually become the core nodes of the waterfront landscape system. However, soft soil is widely distributed in waterfront areas. This type of soil has characteristics such as high natural water content, large porosity, low bearing capacity, and strong compressibility, which brings many engineering and technical challenges to bridge construction.

[0003] In existing technologies, bridge construction in waterfront soft soil areas often adopts traditional foundation treatment methods such as replacement and ordinary pile foundations. However, the stability of soft soil foundations is poor, which can easily lead to structural cracking, deformation and other defects, affecting structural safety and service life.

[0004] In addition, existing prefabricated bridge technologies are mostly applicable to standardized straight bridges, and modular adaptation technologies for soft soil foundations are not yet mature. It is difficult to balance the prefabrication accuracy of components, the precision of on-site installation, and the compatibility with the foundation. There is a lack of adaptation design for irregularly shaped bridges with zigzag curves in the horizontal plane, which cannot simultaneously meet the shape requirements of irregularly shaped landscape bridges and the reinforcement requirements of soft soil foundations. Summary of the Invention

[0005] To overcome the above shortcomings, this invention provides a pedestrian landscape bridge construction structure and construction method for waterfront soft soil areas, which solves the problem of poor stability of existing bridge structures on soft soil foundations and adapts to the shape requirements of irregularly shaped bridges with zigzag curves.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pedestrian landscape bridge construction structure for waterfront soft soil areas, comprising:

[0007] The laterally constrained foundation unit is formed by sealing plates arranged vertically on both sides. The bottom of the sealing plates is inserted into the soft soil foundation to constrain the lateral deformation of the soft soil foundation.

[0008] The longitudinal connection unit, consisting of connector one and connector two, is used to longitudinally connect adjacent sealing plates on the same side to form the basic framework of the landscape bridge.

[0009] An anchoring unit includes an anchoring rod, which sequentially passes through connector one and connector two of adjacent sealing plates on the same side, with its lower end inserted into the foundation bearing layer to form a multi-dimensional constraint on the laterally constrained foundation unit, and its upper end extending above the bridge deck as a railing support.

[0010] The transverse connecting unit, consisting of connecting plates and connecting bolts, is used to connect the sealing plates on both sides into an integral bridge frame;

[0011] The bridge deck and railing unit includes a bridge deck panel and railing crossbars. The bridge deck panel is fixed to the top bearing surface of the sealing plate by a paving lug plate. The railing crossbars are assembled between the upper ends of adjacent anchoring posts to form a railing protection structure.

[0012] Furthermore, the sealing plate is made of steel plate with a square through hole in the middle. The sealing plate is inserted into the soft soil foundation at the bottom of the square through hole, and the board hanging ear plate is installed above the square through hole of the sealing plate. The first connector is fixedly connected to one side of the sealing plate, and the second connector is fixedly connected to the other side of the sealing plate.

[0013] Furthermore, the lower surface of connector one and the upper surface of connector two are on the same horizontal plane, and the two adopt a mating form of overlapping and docking. The adjacent sealing plates can be adjusted by adjusting the docking angle of connector one and connector two.

[0014] Furthermore, a connecting plate is provided on the side of the connector two away from the connector one. The connecting plate is fixedly connected to the sealing plate, and both ends of the connecting plate are fixedly connected to the connecting plates on the two sealing plates by connecting bolts.

[0015] Furthermore, the anchoring rod is divided into upper and lower parts. The diameter of the lower rod is adapted to the diameter of the circular hole in the center of connector one and connector two, while the diameter of the upper rod is larger than that of the lower rod to form a limiting bearing step. The lower part of the anchoring rod is inserted into the bearing layer of the foundation, and the upper part extends above the bridge deck for mounting the railing crossbar.

[0016] Furthermore, the depth to which the lower part of the anchoring rod is inserted into the bearing layer of the foundation is determined according to the thickness of the soft soil layer, and is not less than 2m; the vertical anchoring of the anchoring rod and the lateral constraint of the sealing plate work together to form a composite reinforcement system for the soft soil foundation.

[0017] Furthermore, after the bridge deck is installed and fixed, a reserved space is provided between the bottom surface of the bridge deck and the surface of the soft soil foundation. This reserved space is used for drainage or filling with buoyancy material to realize the function of a floating bridge in shallow water.

[0018] A construction method for a pedestrian landscape bridge structure in a waterfront soft soil area includes the following steps:

[0019] Step S1: Carry out light machinery to level the ground in the waterfront soft soil construction area and remove debris and protruding foreign objects;

[0020] Step S2: Insert the bottom of the sealing plates on both sides vertically into the foundation, and the sealing plates on both sides enclose the foundation area to form a closed foundation area;

[0021] Step S3: Connect the adjacent sealing plates on the same side longitudinally using connector one and connector two to form a single-sided basic frame of the landscape bridge;

[0022] Step S4: Pass the anchoring rod through the round holes of connector one and connector two of the adjacent sealing plates on the same side in sequence, and insert the lower end into the bearing layer of the foundation so that the anchoring rod and the foundation frame form an integrated anchoring structure.

[0023] Step S5: Using connecting plates and connecting bolts, the sealing plates on both sides are horizontally spliced ​​to form an overall bridge frame;

[0024] Step S6: Fix the bridge deck to the top of the sealing plate by laying the plank and hanging the ear plate, and then assemble the railing crossbars between the upper ends of the adjacent anchor fixing posts to complete the construction of the landscape bridge.

[0025] Furthermore, in step S3, the connecting piece one of the sealing plate is fitted together with the connecting piece two of the adjacent sealing plate, so that the circular holes in the center of the two connecting pieces are coaxially aligned; the docking angle of the adjacent sealing plates is adjusted according to the linear bending parameters of the bridge body design to achieve a zigzag layout in the horizontal plane of the bridge body, and then welded and fixed after positioning.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. In this invention, a synergistic reinforcement system is adopted, which combines the lateral sealing constraint of the sealing plate with the vertical deep anchoring of the anchoring rod. The sealing plate is inserted into the soft soil foundation to restrict the lateral flow of the soil, while the anchoring rod penetrates the soft soil layer and reaches deep into the bearing layer to provide vertical anchoring force. The two work together to form a dual reinforcement effect of lateral constraint and vertical anchoring, thereby improving the stability of the bridge on the soft soil foundation. At the same time, the integrated connection between the foundation reinforcement structure and the bridge support structure is realized, which greatly improves the overall structural stability of the bridge.

[0028] 2. In this invention, the overlapping and docking structure of connector one and connector two allows for flexible adjustment of the docking angle of adjacent sealing plates, achieving a zigzag-shaped curve in the horizontal plane of the bridge body, precisely adapting to the requirements of a smooth, zigzag-shaped irregular bridge body; the anchoring rod has the dual functions of a foundation anchoring component and a railing post, and can be arranged in segments according to the zigzag shape of the bridge body, achieving seamless connection between the zigzag-shaped bridge body frame and the railing protection structure, ensuring structural strength while maintaining the harmony of the bridge's landscape.

[0029] 3. In this invention, all components are prefabricated in the factory and assembled on site, which avoids many drawbacks of on-site formwork and pouring. The prefabrication accuracy of the components is controllable, and the on-site assembly process is clear and smooth, which can effectively shorten the construction cycle, reduce the amount of on-site work, and reduce the disturbance to the surrounding ecological and landscape environment. The standardized connector design ensures the accuracy of on-site splicing and the reliability of connection.

[0030] 4. In this invention, a cavity space is reserved between the bottom surface of the bridge deck and the surface of the soft soil foundation. This cavity space can serve as a drainage channel to allow water to drain naturally from the bridge surface, which is suitable for normal water level conditions. Alternatively, it can be filled with lightweight buoyancy material according to the requirements of the working conditions to realize the function of a floating bridge in shallow water areas, which is suitable for complex working conditions with fluctuating water levels in waterfront areas, thus expanding the applicable scenarios and functional boundaries of the bridge. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 for Figure 1 Top view;

[0033] Figure 3 A schematic diagram of the structure for splicing adjacent sealing plates;

[0034] Figure 4 for Figure 2 Sectional view at point BB;

[0035] Figure 5 for Figure 2 Sectional view at CC;

[0036] Figure 6 for Figure 5 Enlarged view at point D;

[0037] Figure 7 for Figure 4 Enlarged view of point A in the middle;

[0038] Figure 8 This is a side view of the structure built in the waterfront soft soil area according to the present invention;

[0039] Figure 9 for Figure 8 Top view.

[0040] In the diagram: 1. Connector 1; 2. Connector 2; 3. Link plate; 4. Anchor fixing rod; 5. Sealing plate; 6. Link hanging plate; 7. Guardrail crossbar; 8. Paving board hanging ear plate; 9. Bridge deck; 10. Link bolt; 11. Square through hole. Detailed Implementation

[0041] This embodiment takes a pedestrian landscape bridge project in a waterfront wetland park in a certain city as an example to describe in detail the construction structure and construction method of a pedestrian landscape bridge in a waterfront soft soil area according to the present invention. The project is located in a waterfront soft soil area with a soft soil layer thickness of about 3m and a foundation bearing capacity of about 60kPa. The bridge body is designed as a planar zigzag shape, with a total length of 80m, a width of 1.5m, and a railing height of 1.1m.

[0042] Example 1

[0043] like Figure 1-9 As shown in the figure, the pedestrian landscape bridge construction structure provided in this embodiment includes a laterally constrained foundation unit, a longitudinal connection unit, an anchoring integration unit, a transverse connection unit, and a bridge deck railing unit. The laterally constrained foundation unit includes a sealing plate 5, the longitudinal connection unit includes a connector 1 and a connector 2, the anchoring integration unit includes an anchoring rod 4, the transverse connection unit includes a connecting plate 3 and a connecting bolt 10, and the bridge deck railing unit includes a bridge deck 9, a deck hanging plate 8, and a railing crossbar 7.

[0044] like Figure 3 As shown, the sealing plate 5 is made of 10mm thick Q235 steel plate and has a plate-like structure with a square through hole 11 in the middle. The part of the sealing plate 5 at the bottom of the square through hole 11 is used to insert into the soft soil foundation. The part of the sealing plate 5 at the top of the square through hole 11 is used to install the paving ear plate 8.

[0045] In this embodiment, a 20cm cavity (i.e., a square through hole 11) is reserved in the middle of the upper 30cm area of ​​the sealing plate 5, and the two sides are 30cm solid structures, which serve as the welding connection parts of each connector; the upper 10cm is reserved as the installation position of the board hanging ear plate 8; the sealing plate 5 adopts this structural design, which not only ensures the structural strength of the component itself, but also provides a reliable welding node for each connector, while the central cavity reserves space for subsequent drainage or buoyancy material filling.

[0046] Connector 1 is fixedly connected to one side of the sealing plate 5, such as... Figure 3 As shown, connector 1 is welded to the left side of the sealing plate 5; connector 2 is fixedly connected to the other side of the sealing plate 5, as shown. Figure 3 As shown, connector 2 is welded to the right side of the sealing plate 5; both connector 1 and connector 2 have a circular hole at their center for the anchor rod 4 to pass through; the lower surface of connector 1 and the upper surface of connector 2 are on the same horizontal plane. When two adjacent sealing plates 5 on the same side are longitudinally spliced, connector 1 of one sealing plate and connector 2 of the adjacent sealing plate are fitted vertically, and the two circular holes are coaxially aligned to ensure the fit and accuracy of the splicing; Figure 3 and Figure 7As shown, connector 1 and connector 2 are joined together in an overlapping manner. The linear bending of the bridge body in the horizontal plane can be achieved by adjusting the joint angle of adjacent sealing plates 5, adapting to the zigzag bridge shape (such as...). Figure 9 (As shown).

[0047] like Figure 3 and Figure 6 As shown, a connecting plate 6 is provided on the side of connector 2 away from connector 1, and the connecting plate 6 is fixedly connected to the sealing plate 5; the connecting plate 6 is used to cooperate with the connecting plate 3 on the adjacent foundation frame; in this embodiment, the connecting plate 3 and the connecting plate 6 are fixedly connected by connecting bolts 10, thereby connecting the sealing plates 5 on both sides into a whole, realizing the splicing and reinforcement of the transverse modules of the bridge body; the setting of the connecting plate 6 effectively enhances the shear resistance and overall stability of the transverse connection.

[0048] like Figure 4 and Figure 7 As shown, the anchor rod 4 is divided into upper and lower parts; the diameter of the lower part of the anchor rod 4 is matched with the diameter of the circular hole in the center of connector 1 and connector 2, ensuring that the anchor rod 4 can pass through the circular holes of connector 1 and connector 2 in sequence; the diameter of the upper part of the anchor rod 4 is larger than the diameter of the lower part, so that after passing through the circular hole of the connector, the upper part can be locked above the connector, playing the role of limiting and bearing.

[0049] The lower part of the anchor rod 4 extends downward after passing through the circular holes of connector 1 and connector 2, inserting into the bearing layer of the foundation. The upper part of the anchor rod 4 is set above the bridge deck 9 for mounting the railing crossbar 7. The lower part of the anchor rod 4 is inserted into the bearing layer of the foundation to a depth of not less than 2m. According to the engineering geological survey report of the waterfront soft soil area, the thickness of the soft soil layer in this area is about 3m, and the anchor rod 4 needs to penetrate the soft soil layer into the bearing layer by not less than 0.5m. Therefore, in this embodiment, the lower part of the anchor rod 4 is inserted to a depth of 3.5m. When the engineering geological conditions change, the insertion depth of the anchor rod 4 should be adjusted according to the actual thickness of the soft soil layer. The specific rule is: insertion depth ≥ soft soil layer thickness + 0.5m, and the total insertion depth is not less than 2m.

[0050] The anchoring rod 4 and the sealing plate 5 together form a composite reinforcement structure for the soft soil foundation: the lower part of the sealing plate 5 is inserted into the soft soil foundation to constrain the lateral flow of the soft soil; the anchoring rod 4 penetrates into the bearing layer of the foundation to provide vertical anchoring force. The two work together to form a dual reinforcement effect of lateral constraint and vertical anchoring for the soft soil foundation, effectively reducing the risk of uneven settlement of the foundation.

[0051] like Figure 1 , Figure 2 and Figure 5As shown, the bridge deck 9 is fixed to the top bearing surface of the sealing plate 5 by the plank hanging ear plate 8; in this embodiment, the plank hanging ear plate 8 is welded to the sealing plate 5 at a reserved position 10cm above the square through hole 11, and the bridge deck 9 is supported on the plank hanging ear plate 8 and fixed.

[0052] After the bridge deck 9 is installed and fixed, a reserved space is formed between the bottom surface of the bridge deck 9 and the surface of the soft soil foundation. The height of this reserved space is the same as the height of the square through hole 11 of the sealing plate 5: 20cm. This reserved space can be used as a drainage space to prevent water accumulation on the bridge. Alternatively, it can be filled with buoyancy materials (such as foam plastic, closed foam concrete, and other lightweight buoyancy materials) as needed to realize the function of a floating bridge in shallow water areas and adapt to the working conditions of water level fluctuations. The specific function selection of the reserved space is based on the following:

[0053] When the drainage function is used: an overhead drainage channel is formed between the bottom surface of the bridge deck and the surface of the soft soil foundation. Tidal water and rainwater in the waterfront area can be naturally drained away through this space, avoiding water pressure acting on the bottom of the bridge deck. This situation is suitable for working conditions where the normal water level is lower than the bottom elevation of the reserved space and the bridge body does not need to provide buoyancy support.

[0054] When using the floating bridge function: fill the reserved space with lightweight buoyancy material. The lightweight buoyancy material is selected from one or more combinations of closed-cell foam plastic board, closed-cell foam concrete or rigid polyurethane foam, with a filling density of no more than 50 kg / m³ and a water absorption rate of no more than 5% (volume percentage). This situation is applicable to shallow water conditions where the normal water level is higher than the bottom elevation of the reserved space and buoyancy is needed to reduce the load on the bridge body or maintain the bridge deck elevation.

[0055] The horizontal railing 7 is assembled between adjacent anchoring posts 4 to form a complete railing protection structure; the upper part of the anchoring post 4 serves as both a railing upright and a foundation anchoring component, realizing an integrated design of foundation anchoring and railing support.

[0056] Example 2

[0057] This embodiment provides a construction method for a pedestrian landscape bridge structure in a waterfront soft soil area, which adopts a construction mode of factory prefabrication and on-site assembly.

[0058] Factory prefabrication: Build a fully parametric BIM model of the landscape bridge, process each prefabricated component according to the model parameters, and transport them to the construction site in batches after pre-assembly, debugging and anti-corrosion treatment.

[0059] The on-site assembly construction steps are as follows:

[0060] Step S1: Leveling the construction site

[0061] Light machinery (construction machinery with a ground pressure of no more than 50 kPa, including small bulldozers, small graders, or light rollers) is used to level the ground in the soft soil area near the water, removing weeds, gravel, and other debris and protruding foreign objects to ensure that there are no obstructions during the subsequent installation of the sealing plate 5. Using light machinery for site leveling can avoid the additional compaction disturbance or shear damage to the soft soil foundation caused by heavy machinery (ground pressure usually greater than 100 kPa), ensuring that the original bearing state of the foundation is not damaged, and the site flatness deviation is controlled within 10 mm.

[0062] Step S2: Insert the sealing plate into the foundation to form a closed foundation area.

[0063] After the sealing plates 5 on both sides are hoisted into place, the bottom 20cm of the sealing plates 5 are vertically pressed into the soft soil foundation using a vibratory hammer or static pressure pile driver. During the pressing process, the pressing rate is controlled at 0.5-1.0m / min to avoid excessive pressure from the soft soil due to excessive static pore water, which would reduce the lateral restraint effect. The sealing plates 5 on both sides are spaced according to the design requirements to form a closed foundation area. After the sealing plates 5 are inserted into the foundation, they can effectively restrict the lateral flow of the soft soil and reduce the risk of uneven settlement of the foundation.

[0064] Step S3: Connect longitudinally to form the basic framework

[0065] The adjacent sealing plates 5 on the same side are longitudinally connected by connector 1 and connector 2; specifically, connector 1 of one sealing plate 5 is fitted vertically with connector 2 of the adjacent sealing plate 5, that is, the lower surface of connector 1 is fitted with the upper surface of connector 2, so that the circular holes in the center of the two connectors are coaxially aligned; for example Figure 9 As shown, the docking angle of adjacent sealing plates is adjusted according to the linear bending parameters of the bridge design to achieve a zigzag layout in the horizontal plane of the bridge. After positioning, the plates are welded and fixed to form the basic frame of the landscape bridge extending longitudinally on one side. A laser positioning instrument is used to assist in calibrating the verticality of the frame to ensure that the verticality deviation of the longitudinal frame does not exceed 3mm.

[0066] Step S4: Anchoring the positioning rod through the rod for anchoring

[0067] The lower part of the anchor rod 4 is inserted through the circular holes of the connector 1 and connector 2 of the adjacent sealing plate 5 on the same side, and then inserted downward into the bearing layer of the foundation to a depth of 3.5m; the upper part of the anchor rod 4 is exposed above the connector; after the anchor rod 4 passes through the connector, it forms an integrated anchoring structure with the foundation frame, which not only achieves multi-dimensional constraint on the front, back, left and right sides of the closed foundation area, but also provides stable support for the subsequent installation of the railing;

[0068] Step S5: Horizontally splice to form the overall bridge frame.

[0069] The sealing plates 5 on both sides are horizontally spliced ​​by using the connecting plate 3 and the connecting bolt 10. Specifically, the connecting plate 3 is fixedly connected to the connecting hanging plate 6 on the sealing plates 5 on both sides by the connecting bolt 10, so that the sealing plates 5 on both sides are spliced ​​into an integral bridge frame. The connecting bolt 10 must ensure that the preload reaches more than 95% of the design value, and the horizontal splicing flatness deviation is controlled within 2mm.

[0070] Step S6: Bridge deck installation and railing crossbar assembly

[0071] The bridge deck 9 is hoisted and fixed to the top bearing surface of the sealing plate 5 by the plank hanging ear plate 8; after the bridge deck 9 is installed, a 20cm reserved space is formed between the bottom surface of the bridge deck 9 and the soft soil foundation surface, which can be used as a drainage space; if the project is located in a shallow water area and requires the function of a floating bridge, buoyancy material can be filled in the reserved space; the elevation deviation of the bridge deck installation is controlled within 5mm.

[0072] Next, the railing crossbars 7 are assembled between the adjacent anchoring rods 4 to form a complete railing protection structure, thus completing the prefabricated construction of the landscape bridge.

[0073] In addition, the following key indicators need to be controlled during construction:

[0074] Component quality control: The dimensional deviation of prefabricated components shall be controlled within ±2mm, the welds shall meet the secondary weld standard, and non-destructive testing shall be carried out.

[0075] Assembly accuracy control: The overall flatness deviation of the bridge body shall not exceed 5mm / m, the welding of each connection node shall meet the secondary weld standard, and the pre-tightening force of bolt connection shall reach more than 95% of the design value.

[0076] Foundation stability control: During construction, the foundation settlement rate should be controlled within 2 mm / d, and the cumulative settlement should not exceed the design limit. If abnormal settlement is found, the construction plan should be adjusted in a timely manner.

[0077] During the construction process of this embodiment, the maximum settlement was 8mm through the above-mentioned quality control measures, which did not exceed the design threshold. All indicators met the design and specification requirements, verifying the effectiveness and reliability of the technical solution of this invention.

Claims

1. A pedestrian landscape bridge construction structure for waterfront soft soil areas, characterized in that, include: The laterally constrained foundation unit is formed by sealing plates (5) set vertically on both sides. The bottom of the sealing plates (5) is inserted into the soft soil foundation to constrain the lateral deformation of the soft soil foundation. The longitudinal connection unit consists of connector one (1) and connector two (2), which is used to longitudinally connect adjacent sealing plates (5) on the same side to form the basic frame of the landscape bridge. Anchoring unit, including anchoring rod (4), the anchoring rod (4) passes through the connector one (1) and connector two (2) of the adjacent sealing plate (5) on the same side in sequence, the lower end is inserted into the foundation bearing layer to form a multi-dimensional constraint on the laterally constrained foundation unit, and the upper end extends to the bridge deck as a railing support; The transverse connecting unit, consisting of a connecting plate (3) and connecting bolts (10), is used to connect the sealing plates (5) on both sides into an integral bridge frame; The bridge deck and railing unit includes a bridge deck (9) and railing crossbars (7). The bridge deck (9) is fixed to the top bearing surface of the sealing plate (5) by a paving lug plate (8). The railing crossbars (7) are assembled between the upper ends of adjacent anchor fixing rods (4) to form a railing protection structure.

2. The pedestrian landscape bridge construction structure in a waterfront soft soil area according to claim 1, characterized in that: The sealing plate (5) is made of steel plate and has a square through hole (11) in the middle. The sealing plate (5) is inserted into the soft soil foundation at the bottom of the square through hole (11). The board hanging ear plate (8) is installed above the sealing plate (5) at the square through hole (11). The first connector (1) is fixedly connected to one side of the sealing plate (5), and the second connector (2) is fixedly connected to the other side of the sealing plate (5).

3. The pedestrian landscape bridge construction structure in a waterfront soft soil area according to claim 2, characterized in that: The lower surface of connector one (1) and the upper surface of connector two (2) are on the same horizontal plane. They adopt a mating form of overlapping and docking. The adjacent sealing plates (5) can be adjusted by adjusting the docking angle between connector one (1) and connector two (2).

4. The pedestrian landscape bridge construction structure in a waterfront soft soil area according to claim 1, characterized in that: The second connector (2) is provided with a connecting plate (6) on the side away from the first connector (1). The connecting plate (6) is fixedly connected to the sealing plate (5). The two ends of the connecting plate (3) are fixedly connected to the connecting plates (6) on the sealing plates (5) on both sides by connecting bolts (10).

5. The pedestrian landscape bridge construction structure in a waterfront soft soil area according to claim 1, characterized in that: The anchoring rod (4) is divided into upper and lower parts. The diameter of the lower rod is matched with the diameter of the circular hole in the center of connector one (1) and connector two (2). The diameter of the upper rod is larger than that of the lower rod to form a limiting bearing step. The lower part of the anchoring rod (4) is inserted into the foundation bearing layer, and the upper part extends above the bridge deck (9) for mounting the railing crossbar (7).

6. The pedestrian landscape bridge construction structure in a waterfront soft soil area according to claim 5, characterized in that: The depth of the lower part of the anchoring rod (4) inserted into the bearing layer of the foundation is determined according to the thickness of the soft soil layer and is not less than 2m; the vertical anchoring of the anchoring rod (4) and the lateral constraint of the sealing plate (5) work together to form a composite reinforcement system for the soft soil foundation.

7. The pedestrian landscape bridge construction structure in a waterfront soft soil area according to claim 1, characterized in that: After the bridge deck (9) is installed and fixed, a reserved space is provided between the bottom surface of the bridge deck (9) and the surface of the soft soil foundation. This reserved space is used for drainage or filling with buoyancy material to realize the function of a floating bridge in shallow water.

8. A construction method for a pedestrian landscape bridge structure in a waterfront soft soil area, characterized in that, The pedestrian landscape bridge construction structure for waterfront soft soil areas as described in any one of claims 1-7 includes the following steps: Step S1: Carry out light machinery to level the ground in the waterfront soft soil construction area and remove debris and protruding foreign objects; Step S2: Insert the bottom of the sealing plates (5) on both sides vertically into the foundation, and the sealing plates (5) on both sides enclose the foundation area. Step S3: Connect the adjacent sealing plates (5) on the same side longitudinally through connector one (1) and connector two (2) to form a single-sided foundation frame of the landscape bridge; Step S4: Pass the anchoring rod (4) through the round holes of the connector one (1) and connector two (2) of the adjacent sealing plate (5) on the same side in sequence, and insert the lower end into the foundation bearing layer so that the anchoring rod (4) and the foundation frame form an integrated anchoring structure. Step S5: Using the connecting plate (3) and connecting bolts (10), the sealing plates (5) on both sides are horizontally spliced ​​to form an overall bridge frame; Step S6: Fix the bridge deck (9) to the top of the sealing plate (5) by using the paving and hanging ear plate (8), and then assemble the railing crossbar (7) between the upper ends of the adjacent anchor fixing rod (4) to complete the construction of the landscape bridge.

9. A construction method for a pedestrian landscape bridge structure in a waterfront soft soil area according to claim 8, characterized in that, In step S3, the first connector (1) of one sealing plate (5) is attached to the second connector (2) of the adjacent sealing plate (5) so that the circular holes in the center of the two connectors are aligned coaxially; the docking angle of the adjacent sealing plates is adjusted according to the linear bending parameters of the bridge body design to achieve a zigzag layout in the horizontal plane of the bridge body, and then welded and fixed after positioning.

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