Bridge pile foundation protection device for bridge construction

Abstract

The invention relates to the technical field of bridge pile foundation reinforcing parts, in particular to a bridge pile foundation protection device for bridge construction, which comprises a hollow enclosure cylinder, and two ends of the enclosure cylinder are opened and form a forming cavity for forming a bridge pile foundation; the inserting cylinder and the enclosure cylinder are fixed in an inserting mode, and a fixing opening is formed after the inserting cylinder and the enclosure cylinder are connected in an inserting mode; the fixing blocks are embedded in the fixing openings, inclined supporting cylinders are connected to the fixing blocks, the inclined supporting cylinders are hollow, inner cavities of the inclined supporting cylinders communicate with inner cavities of the enclosure cylinders, and a plurality of discharging holes are formed in the inclined supporting cylinders; the blocking units are used for blocking the discharging holes and are connected with the inclined supporting cylinder; the bridge pile foundation has the effects that the forming cavity used for pouring and forming the bridge pile foundation can be formed through the enclosure cylinder and the inserting cylinder, grouting reinforcement on soil on the periphery of the bridge pile foundation can be formed through the inclined supporting cylinder after concrete grouting is completed and the concrete is solidified, lateral supporting of the bridge pile foundation is formed, and the position stability of the bridge pile foundation is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of bridge pile foundation reinforcement members, and in particular to a bridge pile foundation protection device used in bridge construction. Background Art

[0002] The bridge pile foundation protection device of bridge construction is a kind of equipment or structure used to protect the bridge pile foundation. During the bridge construction process, the pile foundation is an important supporting part of the bridge, bearing the weight of the bridge and the load transmitted. In order to ensure the stability and safety of the pile foundation and avoid soil erosion or accidental impact damage around the pile foundation, corresponding protective measures need to be taken.

[0003] The prior art discloses a bridge pile foundation protection device, which includes two groups of arc bases, the tops of the two groups of arc bases are fixedly installed with arc clamping plates, and the tops of the two groups of arc clamping plates are movably installed with arc sleeves; the bottoms of the two groups of arc bases are fixedly installed with two groups of fixed angle cones, the inner walls of the two groups of arc sleeves are slidably installed with regulating rods, the front ends of the regulating rods are fixedly installed with two groups of buffer clamping plates, and the two groups of buffer clamping plates are located on the facing surfaces of the two groups of arc sleeves, the tail ends of the regulating rods are fixedly installed with two groups of protective clamping plates, and the two groups of protective clamping plates are located on the separated surfaces of the two groups of arc sleeves, the front and back sides of the two groups of arc clamping plates are fixedly installed with connecting plates, and the internal threads of the connecting plates pass through and connect with limiting screw rods.

[0004] With regard to the above-mentioned related technologies, after the construction of the bridge pile foundation is completed, an arc-shaped clamping plate is arranged on the outside, and lateral support force is provided to the arc-shaped clamping plate by a support frame and a threaded angle cone, thereby supporting the bridge pile foundation. However, when the soil around the bridge pile foundation settles, the support frame and the threaded angle cone will be suspended in the air, thereby losing support for the bridge pile foundation. Summary of the invention

[0005] In order to support the bridge pile foundation while reducing the settlement of the soil around the bridge pile foundation, the present application provides a bridge pile foundation protection device for bridge construction.

[0006] The present application provides a bridge pile foundation protection device for bridge construction using the following technical solution: A bridge pile foundation protection device for bridge construction, comprising: A hollow protective tube, with openings at both ends of the protective tube forming a forming cavity for forming a bridge pile foundation; A plug-in tube, the plug-in tube is plugged and fixed with the surrounding tube, and a fixing opening is formed after the plug-in tube and the surrounding tube are plugged together; A plurality of fixing blocks, wherein the fixing blocks are embedded in the fixing openings, and the fixing blocks are connected with an inclined support tube, the inclined support tube is hollow, the inner cavity of the inclined support tube is connected with the inner cavity of the enclosure tube, and the inclined support tube is provided with a plurality of discharge holes; A plurality of blocking units are used for blocking the discharge hole, and the blocking units are connected to the diagonal support cylinder.

[0007] By adopting the above technical scheme, the steel skeleton of the bridge pile foundation is first built and fixed, and then the retaining tube is sleeved on the outside of the steel skeleton and positioned, and the retaining tube is used as the forming template system of the bridge pile foundation, and then the discharge hole on the diagonal support tube is first blocked by the blocking unit, and then the diagonal support tube is tilted into the soil, and then the plug-in tube and the retaining tube are plugged and fixed. At this time, the fixing block is clamped on the retaining tube by the plug-in tube, and then the blocking unit no longer blocks the discharge hole, and pressurized grouting is performed into the forming cavity. At this time, concrete will enter the inner cavity of the diagonal support tube while filling the forming cavity, and then enter the soil through the discharge hole to complete the grouting reinforcement of the soil. After the concrete solidifies, the diagonal support tube serves as a protective layer , protecting the concrete columns inside it, and serving as an oblique support for the bridge pile foundation, ensuring the position stability of the bridge pile foundation, and supporting the bridge pile foundation under the premise of reducing the settlement of the soil around the bridge pile foundation; the bridge pile foundation protection device designed for bridge construction can form a forming cavity for pouring and forming the bridge pile foundation through the retaining tube and the plug-in tube, and realize the position fixation of the fixed block, and through the oblique support tube, after the concrete grouting is completed and solidified, grouting reinforcement can be formed on the soil around the bridge pile foundation, and lateral support for the bridge pile foundation can be formed to ensure the position stability of the bridge pile foundation, and the possibility of soil or groundwater entering the inner cavity of the oblique support tube during the insertion of the oblique support tube can be reduced through the blocking unit.

[0008] In a specific embodiment, the blocking unit comprises A plurality of rotating bars, the discharge hole is arranged in a bar shape, one end of the rotating bar is rotatably connected to the diagonal support tube, and a traction bar is connected to the rotating bar, the traction bar is arranged close to the rotating end of the rotating bar, and the rotating bar can be rotated into the discharge hole, and the traction bar is located in the inner cavity of the diagonal support tube; A driving member is used to drive the traction bar to rotate, wherein the driving member is connected to the diagonal support tube, and the driving member is connected to the traction bar.

[0009] By adopting the above technical solution, after the diagonal support tube is inserted into the soil, force is applied to the driving member, and the driving member drives the rotating bar to rotate outward and insert into the soil through the traction bar, and at the same time, the discharge hole is opened to facilitate the concrete to enter the soil.

[0010] In a specific embodiment, the driving member includes An adjusting rod, the adjusting rod extends into the diagonal support tube, and the adjusting rod is slidably connected to the diagonal support tube; A plurality of traction ropes are provided, one end of each traction rope is connected to the adjusting rod, and the other end of each traction rope is connected to the traction bar.

[0011] By adopting the above technical solution, after the diagonal support tube is inserted into the soil, force is applied to the adjusting rod, so that the adjusting rod moves toward or away from the fixed block and extends into the inner cavity of the retaining tube. While the adjusting rod moves, the traction bar is rotated by pulling the traction rope, so that the rotating bar rotates outward and is inserted into the soil, thereby realizing the opening of the discharge hole. In addition, the adjusting rod can serve as a steel skeleton of the concrete column in the diagonal support tube, thereby improving the structural strength of the concrete column in the diagonal support tube.

[0012] In a specific possible implementation manner, the traction bar is located at an end of the rotating bar away from the fixed block, and the adjustment rod can extend into the inner cavity of the enclosure tube.

[0013] By adopting the above technical solution, the designed traction bar is arranged at the end of the rotating bar away from the fixed block, and the discharge hole can be opened while the adjusting rod moves toward the fixed block and extends into the inner cavity of the retaining tube. In addition, the adjusting rod extending into the inner cavity of the retaining tube can play the role of planting reinforcement during the concrete pouring process, thereby strengthening the connection strength between the bridge pile foundation and the diagonal bracing tube system.

[0014] In a specific embodiment, the driving member includes A guide rod, the guide rod extends into the diagonal support tube, and the guide rod is connected to the diagonal support tube; A driving block is sleeved on the guide rod, and the driving block is located in the inner cavity of the diagonal support tube, and a sliding gap is left between the driving block and the inner cavity wall of the diagonal support tube, and when the traction bar is rotated to be in contact with the inner cavity wall of the diagonal support tube, the thickness of the traction bar is less than the sliding gap.

[0015] By adopting the above technical scheme, the steel frame of the bridge pile foundation is first built and fixed, and then the retaining tube is sleeved on the outside of the steel frame and positioned, and the retaining tube is used as the forming template system of the bridge pile foundation, and then the diagonal support tube is tilted and inserted into the soil, and then the plug-in tube and the retaining tube are plugged and fixed. At this time, the fixed block is clamped on the retaining tube by the plug-in tube, and pressure grouting is injected into the forming cavity. At this time, concrete will enter the inner cavity of the diagonal support tube while filling the forming cavity. After the concrete enters the inner cavity of the diagonal support tube, it pushes the driving block to move toward the end away from the fixed block. When the driving block slides along the axial direction of the guide rod, it applies force to the traction bar to make the rotating bar rotate, thereby realizing the opening of the discharge hole, and the concrete slurry then enters the soil through the discharge hole to complete the grouting reinforcement of the soil; the designed driving member can control the sliding direction of the driving block through the guide rod, and the driving block can cooperate with the concrete injection operation to realize the automatic opening of the discharge hole.

[0016] In a specific possible implementation manner, the traction bar is located at one end of the rotating bar close to the fixed block, and the guide rod can extend into the inner cavity of the enclosure tube.

[0017] By adopting the above technical solution, the discharge hole can be gradually opened as concrete is injected.

[0018] In a specific possible implementation scheme, the traction bar is located at the end of the rotating bar away from the fixed block, and the guide rod is hollow, the slurry outlet of the guide rod is located at the end of the driving block away from the fixed block, and the inner cavity of the protective tube is connected with the inner cavity of the diagonal support tube through the inner cavity of the guide rod.

[0019] By adopting the above technical scheme, the steel skeleton of the bridge pile foundation is first built and fixed, and then the retaining tube is sleeved on the outside of the steel skeleton and positioned, and the retaining tube is used as the forming template system of the bridge pile foundation, and then the diagonal support tube is tilted and inserted into the soil, and then the plug-in tube and the retaining tube are plugged and fixed. At this time, the fixed block is clamped on the retaining tube by the plug-in tube, and pressurized grouting is injected into the forming cavity. At this time, while filling the forming cavity, the concrete will also enter the inner cavity of the diagonal support tube through the inner cavity of the guide rod. After the concrete enters the inner cavity of the diagonal support tube, it pushes the driving block to move toward one side of the fixed block. When the driving block slides along the axial direction of the guide rod, it applies force to the traction bar to rotate the rotating bar, thereby realizing the opening of the discharge hole, and the concrete slurry then enters the soil through the discharge hole, completing the grouting reinforcement of the soil, thereby maintaining a certain pressure for the concrete to pass through the discharge hole.

[0020] In a specific implementation manner, a counterweight portion is connected to the driving block.

[0021] By adopting the above technical solution, the relationship between the concrete injection pressure and the floating speed of the driving block can be changed by changing the weight of the counterweight part, and the concrete injection pressure can also be increased to facilitate the concrete to penetrate into the soil around the bridge pile foundation or penetrate into the soil through the discharge hole.

[0022] In a specific possible implementation mode, a reinforcement ring is sleeved on the outer side of the enclosure tube, the enclosure tube is connected to the reinforcement ring, and the reinforcement ring is provided with a plurality of positioning holes for the diagonal support tube to pass through.

[0023] By adopting the above technical solution, after the position of the retaining tube is fixed, the reinforcement ring is fixedly connected to the retaining tube, and then the diagonal brace tube is passed through the positioning hole and then gradually pushed into the soil; the designed reinforcement ring can firstly serve as an external support for the bridge pile foundation, and secondly can realize the guidance when the diagonal brace tube is inserted into the soil, ensuring that the fixed block can be smoothly nested with the retaining tube and the plug-in tube.

[0024] In a specific possible implementation manner, the outer diameter of one end of the diagonal support tube away from the fixing block gradually decreases to form an insertion breaking portion.

[0025] By adopting the above technical solution, the designed insertion breaking part can facilitate the insertion of the diagonal support tube into the soil.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The bridge pile foundation protection device designed for bridge construction can form a forming cavity for pouring and forming the bridge pile foundation through the retaining tube and the plug-in tube, and realize the position fixation of the fixed block. The diagonal support tube can form grouting reinforcement for the soil around the bridge pile foundation after the concrete grouting is completed and solidified, and form lateral support for the bridge pile foundation to ensure the position stability of the bridge pile foundation. The blocking unit can reduce the possibility of soil or groundwater entering the inner cavity of the diagonal support tube during the insertion of the diagonal support tube.

[0027] 2. The bridge pile foundation protection device designed for bridge construction is arranged by locating the traction bar at the end of the rotating bar away from the fixed block. The discharge hole can be opened while the adjusting rod moves toward the fixed block and extends into the inner cavity of the retaining tube. The adjusting rod extending into the inner cavity of the retaining tube can play the role of planting reinforcement during the concrete pouring process, thereby strengthening the connection strength between the bridge pile foundation and the diagonal bracing tube system.

[0028] 3. The bridge pile foundation protection device designed for bridge construction, after the position of the retaining tube is fixed, the reinforcement ring is fixedly connected to the retaining tube, and then the diagonal brace tube is passed through the positioning hole and then gradually pushed into the soil; the designed reinforcement ring can firstly serve as an external support for the bridge pile foundation, and secondly can realize the guidance when the diagonal brace tube is inserted into the soil, ensuring that the fixed block can be smoothly nested with the retaining tube and the plug-in tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a bridge pile foundation protection device used for bridge construction according to an embodiment of the present application.

[0030] Figure 2 is Figure 1 Schematic diagram of the three-dimensional structure after adding a reinforcement ring to the foundation.

[0031] Figure 3 yes Figure 2 sectional view of .

[0032] Figure 4 yes Figure 3 A magnified schematic diagram of part A in FIG.

[0033] Figure 5 It is a structural schematic diagram of an embodiment of the present application in which the driving member is a guide rod and a driving block and the traction bar is arranged close to the fixed block.

[0034] Figure 6 It is a structural schematic diagram of an embodiment of the present application in which the driving member is a guide rod and a driving block and the traction bar is arranged on the principle of a fixed block.

[0035] Explanation of the reference numerals: 1. protective tube; 2. plug-in tube; 3. fixed block; 4. diagonal support tube; 41. discharge hole; 5. sealing unit; 51. rotating bar; 52. traction bar; 53. driving member; 531. adjusting rod; 532. traction rope; 533. guide rod; 534. driving block; 6. counterweight; 7. reinforcement ring. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses a bridge pile foundation protection device used in bridge construction.

[0038] Reference Figure 1A bridge pile foundation protection device for bridge construction includes a retaining tube 1 and an inserting tube 2. The retaining tube 1 and the inserting tube 2 are both hollow and coaxially arranged, and the retaining tube 1 is opened at both ends. The retaining tube 1 and the inserting tube 2 are plugged and fixed to form a molding cavity, which is used for casting and molding bridge pile foundations. The inserting tube 2 is plugged and fixed to the retaining tube 1 to form a fixing opening; in the present application, the retaining tube 1 and the inserting tube 2 can be a complete structure, or they can be composed of multiple parts connected together. In the present embodiment, the retaining tube 1 and the inserting tube 2 are both composed of two parts connected by bolts.

[0039] Reference Figure 1 In order to facilitate the sealing of the fixed opening and the lateral support of the retaining tube 1, the bridge pile foundation protection device used for bridge construction also includes a plurality of fixed blocks 3, which are embedded in the fixed opening, and the fixed blocks 3 are plugged and fixed with the retaining tube 1 and the plug-in tube 2. An inclined support tube 4 is welded and fixed on the fixed block 3, and the inclined support tube 4 is arranged obliquely downward, and the inclined support tube 4 is hollow. The inner cavity of the inclined support tube 4 is connected with the inner cavity of the retaining tube 1. When the concrete slurry is injected into the forming cavity under pressure, in order to synchronously realize the grouting reinforcement of the soil around the bridge pile foundation, a plurality of discharge holes 41 are opened on the extending section of the inclined support tube 4 extending into the soil; in the present application, the number of the fixed blocks 3 and the inclined support tube 4 can be two, three, or four, as long as the support of the retaining tube 1 can be achieved, and the number of the fixed blocks 3 and the inclined support tube 4 in the present embodiment is four.

[0040] Reference Figure 2 In order to facilitate the guidance of the insertion direction of the diagonal support tube 4 during the insertion of the diagonal support tube 4 into the soil, a reinforcing ring 7 is sleeved on the outer peripheral side of the casing tube 1. The reinforcing ring 7 and the casing tube 1 are welded and fixed by a connecting rod, and the reinforcing ring 7 and the casing tube 1 are coaxially arranged. A positioning hole is opened in the corresponding area of ​​the reinforcing ring 7. The diagonal support tube 4 passes through the positioning hole and is slidably connected with the reinforcing ring 7 to achieve guidance of the diagonal support tube 4 during the ground breaking process; further, in order to facilitate the insertion of the diagonal support tube 4 into the soil, the outer diameter of the end of the diagonal support tube 4 away from the fixed block 3 is gradually reduced to form an insertion and ground breaking part.

[0041] Reference Figure 3 In order to reduce the possibility of soil or water entering the inner cavity of the diagonal brace tube 4 through the discharge hole 41 during the process of inserting the diagonal brace tube 4 into the soil, the bridge pile foundation protection device used for bridge construction also includes a plurality of blocking units 5, which are connected to the diagonal brace tube 4 and are used to block the discharge hole 41.

[0042] Reference Figure 4The sealing unit 5 includes a rotating bar 51, a traction bar 52 and a driving member 53. The number of the rotating bar 51 and the traction bar 52 is the same and both are multiple. The discharge hole 41 is arranged in a strip shape. One end of the rotating bar 51 intersects with the diagonal support tube 4, and the rotating bar 51 can block the discharge hole 41 after rotation. The traction bar 52 is integrally connected with the rotating bar 51, and the traction bar 52 is arranged near the rotating end of the rotating bar 51. When the rotating bar 51 rotates into the discharge hole 41 and blocks the discharge hole 41, the traction bar 52 is located in the inner cavity of the diagonal support tube 4. In the present application, the angle between the traction bar 52 and the rotating bar 51 can be 30 degrees, 60 degrees, 90 degrees, or other degrees. In the present embodiment, 90 degrees is preferred.

[0043] Reference Figure 4 The driving member 53 is connected to the diagonal support tube 4, and the driving member 53 is connected to the traction bar 52, and is used to drive the traction bar 52 to rotate. In some embodiments of the present application, the driving member 53 includes an adjusting rod 531 and a plurality of traction ropes 532. The adjusting rod 531 extends into the diagonal support tube 4, and the adjusting rod 531 is slidably connected to the diagonal support tube 4. One end of the traction rope 532 is welded and fixed to the adjusting rod 531, and the other end of the traction rope 532 is welded and fixed to the traction bar 52. The traction rope 532 is driven to move along its own axial direction, and the traction bar 52 is driven to rotate by the traction rope 532. , so that the rotating bar 51 rotates outward and inserts into the soil, and the discharge hole 41 is opened at the same time; after the diagonal support tube 4 is inserted into the soil, force is applied to the adjusting rod 531, so that the adjusting rod 531 moves toward or away from the fixed block 3 and extends into the inner cavity of the enclosure tube 1. While the adjusting rod 531 moves, the traction bar 52 is pulled to rotate by the traction rope 532, so that the rotating bar 51 rotates outward and inserts into the soil, thereby realizing the opening of the discharge hole 41, and the adjusting rod 531 can serve as a steel skeleton of the concrete column in the diagonal support tube 4, thereby improving the structural strength of the concrete column in the diagonal support tube 4.

[0044] Reference Figure 4 Furthermore, the traction bar 52 is located at the end of the rotating bar 51 away from the fixed block 3, and the adjusting rod 531 can be extended into the inner cavity of the retaining tube 1, and the discharge hole 41 can be opened while the adjusting rod 531 moves toward the side of the fixed block 3 and extends into the inner cavity of the retaining tube 1, and the adjusting rod 531 extended into the inner cavity of the retaining tube 1 can play the role of planting reinforcement during the concrete pouring process, thereby strengthening the connection strength between the bridge pile foundation and the diagonal bracing tube 4 system.

[0045] Reference Figure 5In some other embodiments of the present application, the driving member 53 includes a guide rod 533 and a driving block 534, the guide rod 533 extends into the inner cavity of the diagonal support tube 4, and the guide rod 533 is welded and fixed to the diagonal support tube 4, the driving block 534 is sleeved on the guide rod 533, and the driving block 534 is located in the inner cavity of the diagonal support tube 4, a sliding gap is left between the driving block 534 and the inner cavity wall of the diagonal support tube 4, and when the traction bar 52 rotates to be in contact with the inner cavity wall of the diagonal support tube 4, the thickness of the traction bar 52 is less than the sliding gap, so that the driving block 534 can pass over the traction bar 52 at the current position.

[0046] Reference Figure 5 Furthermore, the traction bar 52 is located at one end of the rotating bar 51 close to the fixed block 3, and the guide rod 533 can be extended into the inner cavity of the plug-in tube 2, so that the discharge hole 41 can be opened while the adjusting rod 531 moves toward the side of the fixed block 3 and extends into the inner cavity of the retaining tube 1, and the adjusting rod 531 extended into the inner cavity of the retaining tube 1 can play the role of planting reinforcement during the concrete pouring process, thereby strengthening the connection strength between the bridge pile foundation and the diagonal bracing tube 4 system.

[0047] Reference Figure 6 In other embodiments of the present application, the traction bar 52 is located at the end of the rotating bar 51 away from the fixed block 3, and the guide rod 533 is hollow and has openings at both ends. The slurry inlet of the guide rod 533 extends into the inner cavity of the retaining tube 1, and the slurry outlet of the guide rod 533 is located at the end of the driving block 534 away from the fixed block 3, and the inner cavity of the retaining tube 1 and the inner cavity of the diagonal support tube 4 are connected through the inner cavity of the guide rod 533; first, the steel frame of the bridge pile foundation is built and fixed, and then the retaining tube 1 is sleeved on the outside of the steel frame and positioned, and the retaining tube 1 is used as a forming template system for the bridge pile foundation, and then the diagonal support tube 4 is tilted and inserted into the soil, and then the plug-in tube is 2 is plugged and fixed with the surrounding tube 1. At this time, the fixing block 3 is clamped on the surrounding tube 1 by the plug-in tube 2, and grouting is performed under pressure into the forming cavity. At this time, while the concrete fills the forming cavity, it also enters the inner cavity of the diagonal support tube 4 through the inner cavity of the guide rod 533. After the concrete enters the inner cavity of the diagonal support tube 4, it pushes the driving block 534 to move toward the side of the fixing block 3. When the driving block 534 slides along the axial direction of the guide rod 533, it applies force to the traction bar 52 to rotate the rotating bar 51, thereby realizing the opening of the discharge hole 41. The concrete slurry then enters the soil body through the discharge hole 41, completing the grouting reinforcement of the soil body, thereby maintaining a certain pressure for the concrete to pass through the discharge hole 41.

[0048] Reference Figure 6 Furthermore, a counterweight part 6 is welded and fixed on the driving block 534. By changing the weight of the counterweight part 6, the relationship between the concrete injection pressure and the floating speed of the driving block 534 can be changed, and the concrete injection pressure can also be increased to facilitate the concrete to penetrate into the soil around the bridge pile foundation or penetrate into the soil through the discharge hole 41.

[0049] The implementation principle of a bridge pile foundation protection device for bridge construction in an embodiment of the present application is as follows: first, the steel frame of the bridge pile foundation is built and fixed, and then the retaining tube 1 is sleeved on the outside of the steel frame and positioned, and the retaining tube 1 is used as a forming template system for the bridge pile foundation. After the position of the retaining tube 1 is fixed, the reinforcing ring 7 is fixedly connected to the retaining tube 1, and then the diagonal support tube 4 is passed through the positioning hole and the diagonal support tube 4 is gradually pushed into the soil. Then the plug-in tube 2 is plugged and fixed to the retaining tube 1. At this time, the fixed block 3 is clamped on the retaining tube 1 by the plug-in tube 2, and pressure grouting is performed into the forming cavity. At this time, while filling the forming cavity, the concrete will also enter the inner cavity of the diagonal support tube 4 through the inner cavity of the guide rod 533. After the concrete enters the inner cavity of the diagonal support tube 4, it pushes the driving block 534 to move toward one side of the fixed block 3. When the driving block 534 slides along the axial direction of the guide rod 533, it applies force to the traction bar 52 to make the rotating bar 51 rotate, thereby The discharge hole 41 is opened, and the concrete slurry then enters the soil through the discharge hole 41 to complete the grouting reinforcement of the soil, thereby maintaining a certain pressure for the concrete to pass through the discharge hole 41. After the concrete solidifies, the diagonal support tube 4 serves as a protective layer to protect the concrete column inside it, and serves as an oblique support for the bridge pile foundation to ensure the position stability of the bridge pile foundation, and to support the bridge pile foundation under the premise of reducing the settlement of the soil around the bridge pile foundation; a molding cavity for casting and molding the bridge pile foundation can be formed by the retaining tube 1 and the plug-in tube 2, and the position of the fixing block 3 can be fixed. After the concrete grouting is completed and solidified, the diagonal support tube 4 can be used to form grouting reinforcement of the soil around the bridge pile foundation, and lateral support for the bridge pile foundation can be formed to ensure the position stability of the bridge pile foundation. The blocking unit 5 can reduce the possibility of soil or groundwater entering the inner cavity of the diagonal support tube 4 during the insertion process of the diagonal support tube 4.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bridge pile foundation protection device for bridge construction, characterized in that: include: A hollow enclosure tube (1), wherein both ends of the enclosure tube (1) are open and form a forming cavity for forming a bridge pile foundation; An inserting tube (2), wherein the inserting tube (2) is inserted and fixed with the surrounding tube (1), and a fixing opening is formed after the inserting tube (2) and the surrounding tube (1) are inserted and fixed; A plurality of fixing blocks (3), wherein the fixing blocks (3) are embedded in the fixing openings, and the fixing blocks (3) are connected to an inclined support tube (4), the inclined support tube (4) is hollow, the inner cavity of the inclined support tube (4) is connected to the inner cavity of the enclosure tube (1), and the inclined support tube (4) is provided with a plurality of discharge holes (41); A plurality of blocking units (5) for blocking the discharge hole (41), wherein the blocking units (5) are connected to the diagonal support cylinder (4).

2. The bridge pile foundation protection device for bridge construction according to claim 1 is characterized in that: The blocking unit (5) comprises A plurality of rotating bars (51), the discharge hole (41) is arranged in a bar shape, one end of the rotating bar (51) is rotatably connected to the diagonal support tube (4), and a traction bar (52) is connected to the rotating bar (51), the traction bar (52) is arranged close to the rotating end of the rotating bar (51), and the rotating bar (51) can be rotated into the discharge hole (41), and the traction bar (52) is located in the inner cavity of the diagonal support tube (4); A driving member (53) is used for driving the traction bar (52) to rotate, wherein the driving member (53) is connected to the diagonal support cylinder (4), and the driving member (53) is connected to the traction bar (52).

3. The bridge pile foundation protection device for bridge construction according to claim 2 is characterized in that: The driving member (53) comprises A guide rod (533), wherein the guide rod (533) extends into the diagonal support tube (4), and the guide rod (533) is connected to the diagonal support tube (4); A driving block (534), wherein the driving block (534) is sleeved on the guide rod (533), and the driving block (534) is located in the inner cavity of the diagonal support tube (4), and a sliding gap is left between the driving block (534) and the inner cavity wall of the diagonal support tube (4), and when the traction bar (52) is rotated to be in contact with the inner cavity wall of the diagonal support tube (4), the thickness of the traction bar (52) is smaller than the sliding gap.

4. The bridge pile foundation protection device for bridge construction according to claim 3 is characterized in that: The traction bar (52) is located at one end of the rotating bar (51) close to the fixed block (3), and the guide rod (533) can extend into the inner cavity of the enclosure tube (1).

5. The bridge pile foundation protection device for bridge construction according to claim 3 is characterized in that: The traction bar (52) is located at the end of the rotating bar (51) away from the fixed block (3), and the guide rod (533) is hollow. The slurry outlet of the guide rod (533) is located at the end of the driving block (534) away from the fixed block (3), and the inner cavity of the enclosure tube (1) is connected with the inner cavity of the diagonal support tube (4) through the inner cavity of the guide rod (533).

6. The bridge pile foundation protection device for bridge construction according to claim 5 is characterized in that: The driving block (534) is connected to a counterweight portion (6).

7. The bridge pile foundation protection device for bridge construction according to any one of claims 1 to 6, characterized in that: A reinforcement ring (7) is sleeved on the outside of the enclosure tube (1), the enclosure tube (1) is connected to the reinforcement ring (7), and the reinforcement ring (7) is provided with a plurality of positioning holes for the diagonal support tube (4) to pass through.

8. The bridge pile foundation protection device for bridge construction according to any one of claims 1 to 6, characterized in that: The outer diameter of one end of the diagonal support tube (4) away from the fixed block (3) gradually decreases to form an insertion and breaking soil portion.

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