Reinforcement structure capable of adjusting settlement of joint between bridge head and soil layer and its construction method

Abstract

The present invention discloses a reinforcement structure capable of adjusting the settlement of a joint between a bridge head and a soil layer, comprising a bridge end, wherein the bridge end is connected to a first enclosure, a second enclosure, and a third enclosure by a plurality of prestressed anchor cables, the first enclosure, the second enclosure, the third enclosure, and the end faces of the bridge end are gradually increased in inclination angles, and soil layers are filled between the bridge end and the first enclosure, the second enclosure, and the third enclosure; the compression deformation of the soil in the bridge head area can be reduced, and the settlement of the soil in the bridge head area can be adjusted; when the bridge head is misaligned during long-term use, the misalignment can be eliminated by reducing the weights or high-quality objects in the pre-buried pipes on the arc pressure plate, and workers are no longer required to re-construct or remediate, thereby saving the operating costs of the bridge and the road.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a reinforcement structure capable of adjusting the settlement of a joint between a bridge head and a soil layer, and also relates to a construction method of the reinforcement structure capable of adjusting the settlement of a joint between a bridge head and a soil layer. Background Art

[0002] Bridge jumping is a phenomenon in which vehicles jump when passing due to differential settlement or damage to expansion joints at the bridge head, which causes steps to appear on the longitudinal slope of the road surface. This phenomenon is a common disaster in urban road traffic, which will affect driving safety, reduce driving speed, affect vehicle operating costs and accelerate the disease of bridges and roads.

[0003] As for its cause, the differences in material stiffness, expansion and contraction, strength, etc. at the joints between flexible roads and rigid structures can easily lead to stress concentration in the flexible area. At the same time, the reciprocating load of vehicles, the deadweight of the structure, and natural factors can also cause the settlement of the flexible road to be greater than that of the rigid bridge, thus causing a misalignment at the bridge head.

[0004] At present, the main method to deal with the misalignment between the rigid structure and the flexible part of the bridge head is to treat the foundation and set up bridge culvert structures. In the process of treatment, engineering construction methods such as drainage consolidation and soil replacement are often required, which will affect the normal use of the bridge, and repeated construction will increase the maintenance cost of the bridge. Summary of the invention

[0005] The purpose of the present invention is to provide a reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer, which can reduce the compression deformation of the soil layer in the bridge head area and adjust the settlement of the soil layer in the bridge head area.

[0006] Another object of the present invention is to provide a reinforcement structure construction method capable of adjusting the settlement of the joint between the bridge head and the soil layer.

[0007] The technical solution adopted by the present invention is a reinforcement structure with adjustable settlement of the joint between the bridge head and the soil layer, including a bridge end, the bridge end being connected to a first enclosure, a second enclosure, and a third enclosure through multiple prestressed anchor cables, the inclination angles of the first enclosure, the second enclosure, the third enclosure and the end faces of the bridge end are gradually increased, and soil layers are filled between the bridge end and the first enclosure, the second enclosure, and the third enclosure.

[0008] The present invention is also characterized in that:

[0009] The first enclosure, the second enclosure and the third enclosure are all arranged radially, and the number decreases successively.

[0010] The heights of the first enclosure, the second enclosure and the third enclosure gradually decrease.

[0011] The tops of the first enclosure, the second enclosure and the third enclosure are all hinged with threaded sleeves.

[0012] The first enclosure, the second enclosure and the third enclosure are all grid structures, including a plurality of cross beams and vertical beams connected in an interlaced manner.

[0013] The bottom of the first enclosure, the second enclosure and the third enclosure are all actively connected to at least one distribution steel bar, and each distribution steel bar is connected to the end of the bridge.

[0014] The bottom of the first enclosure, the second enclosure and the third enclosure are all actively connected to at least one distributed steel bar. The specific connection method is: the bottom of the first enclosure, the second enclosure and the third enclosure are all pre-embedded with chain embedded parts, the outer cover of the distributed steel bar is connected to a fixed sleeve containing a hook, and the hook on the fixed sleeve is connected to the chain embedded part.

[0015] An arc-shaped pressure plate is laid on the soil layer between the bridge end and the first enclosure.

[0016] The arc-shaped pressing plate is also connected to a pre-buried pipeline, and the pre-buried pipeline is connected to an electric control track.

[0017] Another technical solution adopted by the present invention is a construction method of a reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer, which is specifically implemented according to the following steps:

[0018] Step 1: Backfill the soil layer around the bridge end at the bottom of the first enclosure, the second enclosure, and the third enclosure, and backfill the soil layer to the bottom elevation of the first enclosure, the second enclosure, and the third enclosure;

[0019] Step 2: Lay and install the bottom distribution steel bars, and install the fixing sleeves at the predetermined positions;

[0020] Step 3: Anchor one end of the prestressed anchor cable connected to the bridge end, and connect the other end to the first enclosure, the second enclosure, and the third enclosure;

[0021] Step 4: backfill the soil below the top of the first enclosure, the second enclosure, and the third enclosure in sequence to form a soil layer, screw the vertical pressure rod at the top of the corresponding enclosure into the threaded sleeve, and use construction equipment to apply vertical downward pressure to the vertical pressure rod;

[0022] Step 5: Start backfilling the soil above the top of the first enclosure and set up the arc-shaped pressure plate at the same time;

[0023] Step 6: Lay the pre-buried pipeline with built-in electric control rails, and transport the weights or high-quality objects to the area above the arc-shaped pressure plate of the pre-buried pipeline through the electric control rails, and backfill the bottom soil layer through the arc-shaped pressure plate; continue to complete the backfilling of the soil around the pre-buried pipeline and above the top of the arc-shaped pressure plate or the leveling and compaction of the soil under the bridge head cladding, and carry out the bridge head cladding construction on the compacted soil layer;

[0024] Step 7: Screw the vertical compression rod out of the threaded sleeve, and then compact the soil outside the first enclosure away from the bridge end;

[0025] Step 8: Complete the backfilling of all soil around the embedded pipes and above the top of the arc-shaped pressure plate or the leveling and compaction of the soil under the bridgehead cladding, and complete the construction of the bridgehead cladding on the compacted soil layer.

[0026] The beneficial effects of the present invention are:

[0027] The reinforcement structure of the present invention can adjust the settlement of the joint between the bridge head and the soil layer, can reduce the compression deformation of the soil in the bridge head area, and can also adjust the settlement of the soil in the bridge head area; when the bridge is misaligned during long-term use, the misalignment can be eliminated by reducing the weights or high-quality objects in the pre-buried pipes on the arc pressure plate, and workers are no longer required to re-construct or remediate, saving the operating costs of the bridge and road. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a reinforcement structure capable of adjusting the settlement of a joint between a bridge head and a soil layer according to the present invention;

[0029] Figure 2 It is a schematic diagram of actual engineering use of a reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer according to the present invention;

[0030] Figure 3 It is a top view of a reinforcement structure capable of adjusting the settlement of a joint between a bridge head and a soil layer according to the present invention;

[0031] Figure 4 It is a structural schematic diagram of a reinforcement structure capable of adjusting the settlement of a joint between a bridge head and a soil layer without an arc-shaped pressure plate and a pre-buried pipeline according to the present invention;

[0032] Figure 5 It is a structural schematic diagram of a baffle in a reinforcement structure capable of adjusting the settlement of a joint between a bridge head and a soil layer according to the present invention;

[0033] Figure 6 It is a partial cross-sectional schematic diagram of a baffle in a reinforcement structure capable of adjusting the settlement of a joint between a bridge head and a soil layer according to the present invention;

[0034] Figure 7 It is a structural schematic diagram of a node A in a reinforcement structure capable of adjusting the settlement of a joint between a bridge head and a soil layer according to the present invention;

[0035] Figure 8 It is a schematic diagram of the connection between the bottom distributed steel bars and the baffle in a reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer according to the present invention;

[0036] Fig. 9 It is a structural schematic diagram of an arc-shaped pressure plate in a reinforcement structure capable of adjusting the settlement of a joint between a bridge head and a soil layer according to the present invention;

[0037] Fig.10 It is a schematic diagram of the spatial position relationship between the arc-shaped pressure plate and the baffle in a reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer according to the present invention;

[0038] Fig.11 It is a schematic diagram of the positional relationship between the vertical compression rod and the enclosure in a reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer according to the present invention;

[0039] Fig.12 It is a schematic diagram of the spatial relationship between the top surface of the bridge head and the curved surface of the reinforcement range in a reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer according to the present invention;

[0040] Fig.13 yes Fig.12 A front view of

[0041] Fig.14 So Fig.12 The side view is a schematic diagram expressing the changes in the reinforcement range and the top surface position of the bridge head.

[0042] In the figure, 1. Bridge end, 2. First enclosure, 21. Crossbeam, 22. Vertical beam, 23. Distribution steel bars, 24. Fixed sleeve, 25. Chain embedded parts, 26. Enclosure near bridge head, 27. Threaded sleeve, 28. Vertical pressure rod, 3. Second enclosure, 4. Third enclosure, 5. Prestressed anchor cable, 6. Arc pressure plate, 7. Embedded pipeline, 8. Conical slope, 9. Load-bearing pressure plate, 10. Top surface of bridge head, 11. Reinforcement range area. DETAILED DESCRIPTION

[0043] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] The reinforcement structure of the present invention can adjust the settlement of the joint between the bridge head and the soil layer, such as Figure 1 As shown, it includes a bridge end 1, and three layers of enclosures are arranged at the end opposite to the bridge end 1, namely the first enclosure 2, the second enclosure 3, and the third enclosure 4. The bridge end 1 is connected to the first enclosure 2, the second enclosure 3, and the third enclosure 4 through multiple prestressed anchor cables 5. The first enclosure 2, the second enclosure 3, and the third enclosure 4 are all arranged at an inclined angle to the end face of the bridge end 1 that gradually increases, which can increase the angle between the first enclosure 2, the second enclosure 3 and the third enclosure 4, thereby increasing the constraint range of the enclosure on the soil. Soil layers are filled between the bridge end 1 and the first enclosure 2, the second enclosure 3, and the third enclosure 4.

[0045] The first enclosure 2, the second enclosure 3, and the third enclosure 4 are all arranged radially, and the number decreases successively.

[0046] The heights of the first enclosure 2, the second enclosure 3 and the third enclosure 4 are gradually reduced, and the restraining height of the enclosure on the soil layer is gradually reduced, thereby increasing the thickness of the unrestrained soil layer.

[0047] The tops of the first enclosure 2, the second enclosure 3, and the third enclosure 4 are all hinged with threaded sleeves 27, and the threaded sleeves 27 are used to connect the vertical pressure rods 28. Through the vertical pressure rods 28, the first enclosure 2, the second enclosure 3, and the third enclosure 4 have a tendency to increase the inclination angle with the bridge end 1, thereby forming pre-tensioning stress on the prestressed anchor cable 5.

[0048] A gap is left between two adjacent first enclosures 2 , the second enclosure 3 is arranged in the gap between the adjacent first enclosures 2 , and the third enclosure 4 is arranged in the gap between two adjacent second enclosures 3 .

[0049] The prestressed anchor cable 5 is connected and arranged in the middle of the enclosure. When the prestressed anchor cable 5 is connected to the third enclosure 4 , the prestressed anchor cable 5 passes through the second enclosure 3 .

[0050] The first enclosure 2 , the second enclosure 3 , and the third enclosure 4 are all grid-like structures and reinforced concrete structures, including a plurality of cross beams 21 and vertical beams 22 connected in an interlaced manner. When the enclosures are manufactured, connecting parts need to be embedded in advance to facilitate connection with the prestressed anchor cables 5 .

[0051] The cross-sections of the horizontal beam 21 and the vertical beam 22 are both trapezoidal, and the side with the shorter bottom side in the cross-section is the enclosure near the bridge head 26. During use, there is still a soil layer between the first enclosure 2, the second enclosure 3, the third enclosure 4 and the bridge end 1. The compression of the soil layer on the enclosure will cause the enclosure to be in a bending state, that is, the horizontal beam 21 and the vertical beam 22 will be in a bending state. Such a setting can increase the bending resistance of the horizontal beam 21 and the vertical beam 22. In addition, holes will be formed between the horizontal beam 21 and the vertical beam 22, which is conducive to the enclosure releasing soil pressure. The hypotenuse of the horizontal beam 21 and the vertical beam 22 will also increase the enclosure's constraint on the soil layer between the enclosure and the bridge end 1.

[0052] The first enclosure 2, the second enclosure 3, and the third enclosure 4 are all pre-embedded with chain embedded parts 25 at the bottom, and the outer surface of the distribution steel bars 23 is connected with a fixed sleeve 24 including a hook, and the hook on the fixed sleeve 24 is connected to the chain embedded part 25, so that the bottom of the enclosure and the distribution steel bars 23 form a connection form that can be slightly translated and rotated.

[0053] An arc-shaped pressure plate 6 is laid on the soil layer between the bridge end 1 and the first enclosure 2. The arc-shaped pressure plate 6 is a curved steel plate. The arc-shaped pressure plate 6, the first enclosure 2 and the bridge end 1 are used to enclose the soil layer in the area in a non-sealed manner, so that the soil in this area is under pressure, and this part of the soil is called the core pressure soil layer.

[0054] Gaps are left between the arc-shaped pressure plate 6 and the prestressed anchor cable 5, and between the first enclosure 2 and the bridge end 1, to ensure that the pressure of the arc-shaped pressure plate 6 can be directly transmitted to the core compressed soil layer.

[0055] The arc-shaped pressure plate 6 is also connected to a pre-buried pipe 7, and the other part of the pre-buried pipe 7 is exposed from the soil between the bridge end 1 and the enclosure, and is laid on the conical slope 8 of the bridge. The pre-buried pipe 7 is connected to an electric control track, and the part of the pre-buried pipe 7 laid on the conical slope can be opened. The staff can open the pre-buried pipe 7 outside the bridge head and transport weights or high-quality objects to the area of ​​the pre-buried pipe 7 above the arc-shaped pressure plate 6 through the electric control track to form loading for the arc-shaped pressure plate 6.

[0056] In the present invention, the final finished top surface of the backfill soil layer or the bridge head slab above the reinforcement structure is the bridge head top surface 10 .

[0057] There is a gap between the top of the arc-shaped pressing plate 6 and the embedded pipeline 7 and the top surface 10 of the bridge head, so as to ensure the construction space for soil backfilling or bridge head slab.

[0058] The function of the arc-shaped pressure plate 6 is to support the pre-buried pipeline 7 and transfer the load to the core pressure soil layer.

[0059] The part of the pre-buried pipe 7 buried in the soil has strong rigidity and strength, which prevents the pre-buried pipe 7 from being crushed or greatly deformed by the pressure of the surrounding fill during the later use.

[0060] The connection transition area between the pre-buried pipe 7 in the soil and the part laid on the cone slope 8 adopts a flexible pipe transition connection to prevent the pre-buried pipe 7 from being pulled or torn off in the connection transition area due to the height change of the arc pressure plate 6.

[0061] The prestressed anchor cable 5 is a high-elasticity, high-strength anchor cable.

[0062] The distribution steel bars 23 and the bridge end 1 can be connected by using embedded parts, or by using reserved steel bars and sleeves.

[0063] The construction method of the reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer is specifically implemented in the following steps:

[0064] Step 1: Backfill the soil layer around the bridge end 1 at the bottom of the first enclosure 2, the second enclosure 3, and the third enclosure 4, and backfill the soil layer to the bottom elevation of the first enclosure 2, the second enclosure 3, and the third enclosure 4;

[0065] Step 2: Lay and install the bottom distribution steel bars 23, and install the fixing sleeves 24 at the predetermined positions;

[0066] Step 3, first anchor one end of the prestressed anchor cable 5 connected to the bridge end 1, and connect the other end to the first enclosure 2, the second enclosure 3, and the third enclosure 4;

[0067] Step 4: backfill the soil below the top of the first enclosure 2, the second enclosure 3, and the third enclosure 4 in sequence, screw the vertical pressure rod 28 at the top of the corresponding enclosure into the threaded sleeve 27, and use construction equipment to apply vertical downward pressure to the vertical pressure rod 28;

[0068] At the same time, the soil below the finished surface and on the side of the enclosure away from the bridge end 1 is compacted. When the soil backfill below the top of the first enclosure 2 is completed, the vertical pressure rod 28 on the top of the first enclosure 2 must be vertically fixed and applied with vertical downward pressure, and the soil between the first enclosure 2 and the bridge end 1 must also be compacted.

[0069] Step 5, start backfilling the soil above the top of the first enclosure 2, and set the arc-shaped pressure plate 6 at the same time;

[0070] The soil is backfilled until the lowest elevation of the bottom curved surface of the arc-shaped pressure plate 6, and then the soil below the lowest elevation of the bottom curved surface of the arc-shaped pressure plate 6 is compacted. Then the position of the arc-shaped pressure plate 6 is readjusted to the predetermined position, and finally the soil below the bottom curved surface of the arc-shaped pressure plate 6 is compacted.

[0071] Step 6: Lay the pre-buried pipe 7 with built-in electric control rails, and transport the weights or high-quality objects to the area above the arc-shaped pressure plate 6 of the pre-buried pipe 7 through the electric control rails, and apply pressure to the core compressed soil layer through the arc-shaped pressure plate 6; continue to complete the backfilling of the soil around the pre-buried pipe 7 and above the top of the arc-shaped pressure plate 6 or the leveling and compaction of the soil under the bridge head cladding, and carry out the bridge head cladding construction on the compacted soil layer;

[0072] Only the soil backfill or bridgehead slab construction between the bridge end 1 and the first enclosure 2 is completed, and a load-bearing plate 9 is set on the top of the completed surface of the part, and then a preload is applied on the upper part of the load-bearing plate 9 to keep the preload on the load-bearing plate 9 continuously present.

[0073] Step 7, screw the vertical pressure rod 28 out of the threaded sleeve 27, and then compact the soil of the first enclosure 2 away from the bridge end 1;

[0074] Release the preload on the weight-bearing pressure plate 9, and then eliminate the weight-bearing pressure plate 9. At this time, the top surface 10 of the bridge head will produce a local bulge near the bridge end 1 due to the pressure of the vertical pressure rod 28, the weight-bearing pressure plate 9 and the release of the preload thereon. It is necessary to continue to transport the weights or high-quality objects through the electric-controlled rail to the area above the arc pressure plate 6 of the embedded pipeline 7 until the top surface 10 of the bridge head is flush with the top surface of the bridge, thereby completing all the preloading of the arc pressure plate 6.

[0075] Step 8: Complete the backfilling of all soil around the pre-buried pipe 7 and above the top of the arc-shaped pressure plate 6 or the leveling and compaction of the soil under the bridgehead cladding, and complete the construction of the bridgehead cladding on the compacted soil layer.

[0076] The soil layer refers to the soil in the bridge head area whose elastic modulus is smaller than that of the bridge itself.

[0077] The working principle of the reinforcement structure construction method of the present invention capable of adjusting the settlement of the joint between the bridge head and the soil layer is as follows:

[0078] The vertical compression rod 28 cooperates with the construction method to ensure that the prestressed anchor cable 5 is in a tensioned state throughout the entire process. The prestressed anchor cable 5 allows the enclosure to have a tendency to rotate toward the bridge end 1 around the connection area between the enclosure and the chain embedded part 25 throughout the entire process. The first enclosure 2, the second enclosure 3, and the third enclosure 4 function together with the bridge end 1 to form a reinforcement range area 11 for the soil between the enclosure and the bridge end 1. Fig.12 , 13 and Fig.14 The reinforcement range area 11 shown is a curved surface range area, and there is still a certain gap between the reinforcement range area 11 and the bridge head top surface 10, which can ensure that the gap between the bridge head top surface 10 and the reinforcement range area 11 is smaller at the bridge head closer to the bridge end 1. Since the elastic modulus of the soil at the bridge head in the project is almost the same, the compressible deformation value of the soil in the area with a smaller gap must be smaller than the compressible deformation value of the soil in the area with a larger gap, that is, the smaller the gap between the reinforcement range area 11 and the bridge head top surface 10, the greater the stiffness of the soil. When the repeated load of vehicles, the deadweight of the structure and other factors continue to act, the deformation value of the soil near the bridge end 1 area is smaller than the deformation value of the soil in other areas. At the same time, because the gap between the enclosures and the enclosures can release the soil pressure in the reinforcement range area 11, the first enclosure 2, the second enclosure 3, and the third enclosure 4 jointly generate a rotational displacement trend toward the bridge end 1, that is, the soil in the reinforcement range area 11 near the bridge end 1 area will have an upward lifting trend, as shown in FIG. Fig.14X1 and X2 are shown in the figure, where X2 represents the final settlement value of the bridge head top surface 10 close to the bridge end 1. Under this principle, even if the soil of the bridge head top surface 10 close to the bridge end 1 will settle, the reinforcement range area 11 close to the bridge end 1 will rise, which further helps to reduce the bridge head misalignment phenomenon. After long-term use, if the settlement value X2 is too large, the weights or high-mass objects on the arc pressure plate 6 can be unloaded by adjusting the electric control track built into the pre-buried pipe 7 on the conical slope 8, that is, the pressure of the arc pressure plate 6 on the core compressed soil layer will be reduced, and the restraint force of the enclosure on the core compressed soil layer will be reduced. At this time, the shrinkage deformation of the prestressed anchor cable 5 further makes the first enclosure 2, the second enclosure 3, and the third enclosure 4 jointly produce a rotational displacement trend toward the bridge end 1, so that the reinforcement range area 11 rises close to the bridge end 1, generating a rise value Y1, and then the soil on the top surface 10 of the bridge head close to the bridge end 1 produces a lift value Y2. If Y2 is equal to X2, the bridge head misalignment phenomenon can be restored.

[0079] Through the above-mentioned method, the present invention can adjust the reinforcement structure of the settlement of the joint between the bridge head and the soil layer. During use, the compression deformation of the soil layer in the bridge head area can be reduced, and the settlement of the soil layer in the bridge head area can be adjusted. When the bridge is misaligned during long-term use, the misalignment can be eliminated by reducing the weights or high-quality objects in the pre-buried pipe 7 on the arc pressure plate 6, and workers are no longer required to re-construct or manage.

Claims

1. A reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer, characterized in that: The invention comprises a bridge end (1), wherein the bridge end (1) is connected to a first enclosure (2), a second enclosure (3), and a third enclosure (4) via a plurality of prestressed anchor cables (5), wherein the first enclosure (2), the second enclosure (3), the third enclosure (4) and the bridge end (1) are arranged such that the inclination angles of the end faces thereof gradually increase, and soil layers are filled between the bridge end (1) and the first enclosure (2), the second enclosure (3), and the third enclosure (4); The first enclosure (2), the second enclosure (3), and the third enclosure (4) are all arranged radially, and the number decreases successively; The heights of the first enclosure (2), the second enclosure (3), and the third enclosure (4) gradually decrease; The tops of the first enclosure (2), the second enclosure (3), and the third enclosure (4) are all hingedly connected to threaded sleeves (27); The bottoms of the first enclosure (2), the second enclosure (3), and the third enclosure (4) are all actively connected to at least one distribution steel bar (23), and each of the distribution steel bars (23) is connected to the bridge end (1); The bottoms of the first enclosure (2), the second enclosure (3), and the third enclosure (4) are all actively connected to at least one distribution steel bar (23). The specific connection method is as follows: the bottoms of the first enclosure (2), the second enclosure (3), and the third enclosure (4) are all pre-embedded with chain embedded parts (25); the outer surface of the distribution steel bar (23) is connected to a fixing sleeve (24) containing a hook; the upper hook of the fixing sleeve (24) is connected to the chain embedded part (25); An arc-shaped pressure plate (6) is laid on the soil layer between the bridge end (1) and the first enclosure (2); The arc-shaped pressing plate (6) is also connected to a pre-buried pipe (7), and the pre-buried pipe (7) is connected to an electric control track; The weight is transported to the area above the arc-shaped pressing plate (6) of the pre-buried pipeline (7) via an electrically controlled track.

2. The reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer according to claim 1 is characterized in that: The first enclosure (2), the second enclosure (3), and the third enclosure (4) are all grid-like structures, comprising a plurality of cross beams (21) and vertical beams (22) that are cross-connected.

3. The construction method of the reinforcement structure capable of adjusting the settlement of the joint between the bridge head and the soil layer according to claim 1 or 2 is characterized in that: Follow the steps below to implement it: Step 1: backfilling the soil layer around the bridge end (1) at the bottom of the first enclosure (2), the second enclosure (3), and the third enclosure (4), and backfilling the soil layer to the bottom elevation of the first enclosure (2), the second enclosure (3), and the third enclosure (4); Step 2: laying and installing distribution steel bars (23), and installing fixing sleeves (24) at predetermined positions; Step 3, first anchoring one end of the prestressed anchor cable (5) connected to the bridge end (1), and connecting the other end to the first enclosure (2), the second enclosure (3), and the third enclosure (4); Step 4: backfill the soil below the top of the first enclosure (2), the second enclosure (3), and the third enclosure (4) in sequence to form a soil layer; screw the vertical pressure rod (28) at the top of the corresponding enclosure into the threaded sleeve (27), and use construction equipment to apply vertical downward pressure to the vertical pressure rod (28); Step 5, start backfilling the soil above the top of the first enclosure (2), and set the arc-shaped pressure plate (6); Step 6: Lay the pre-buried pipe (7) with built-in electric control rails, and transport the weights or high-mass objects to the area above the arc-shaped pressure plate (6) of the pre-buried pipe (7) through the electric control rails, and apply pressure to the core pressure soil layer through the arc-shaped pressure plate (6); continue to complete the backfilling of the soil around the pre-buried pipe (7) and above the top of the arc-shaped pressure plate (6) or the leveling and compaction of the soil under the bridge head cladding, and carry out the bridge head cladding construction on the compacted soil layer; Step 7, screwing the vertical pressure rod (28) out of the threaded sleeve (27), and then compacting the soil outside the first enclosure (2) away from the bridge end (1); Step 8: Complete the backfilling of all soil around the pre-buried pipe (7) and above the top of the arc-shaped pressure plate (6) or the leveling and compaction of the soil under the bridgehead cladding, and complete the construction of the bridgehead cladding on the compacted soil layer.

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