Bridge pile reinforcing device and reinforcing method for bridge maintenance

Abstract

The present application relates to the technical field of bridge construction equipment, in particular to a bridge foundation pile reinforcing equipment and a reinforcing method for bridge maintenance, comprising a self-adaptive protection piece installed on the outer side of a prefabricated pier, the self-adaptive protection piece comprises an assembled protective cover and a self-adaptive shielding mechanism, the assembled protective cover is provided with a plurality of assembled protective covers, the wall thickness of the assembled protective cover is provided with a thermal insulation layer, the inner wall of the assembled protective cover is further provided with a temperature regulating and heating device and a temperature sensor, and the self-adaptive shielding mechanism comprises a plurality of telescopic shafts, a thermal insulation shielding layer, a sealing mechanism and a stable binding mechanism. The present application can widen the application range and improve the installation quality of the pier.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction equipment, in particular to a bridge foundation pile reinforcement device, and more particularly to a reinforcement method for bridge maintenance using the bridge foundation pile reinforcement device. Background Art

[0002] With the development of engineering technology, some bridge components are prefabricated and assembled to shorten the construction period. After the pile foundation is poured, the prefabricated piers and the connecting steel bars on the pedestal are spliced ​​and poured into one piece, or slot-type connections, grouted metal bellows connections, etc. are used to complete the splicing between the two. However, in actual construction, the above connection methods all require pouring at the connection part. During winter construction, freeze-thaw is prone to occur, affecting the molding quality of the concrete.

[0003] Chinese patent CN115467355B discloses a bridge pile foundation anti-freeze-thaw reinforcement device and method, including: a bracket, wherein the top of the bracket is provided with multiple inclined placement tracks, and the bracket is connected to four preset hole positions of the pedestal on all sides; an adjusting arm, wherein the multiple adjusting arms are adjusted along the placement tracks to form a limiting channel for the passage of the pier; an alignment device, wherein the multiple alignment devices are distributed in the middle of the bracket and are in contact with the surface of the pier, and are used to align the pier and assist in fixation; a protective member, wherein the protective member is spliced ​​in pairs to complete the covering of the pier and is connected to the bracket; a bridge pile foundation anti-freeze-thaw reinforcement device and method are provided, which can improve the efficiency of the pier correction, keep the pier stable after correction, and reduce the requirements for the natural environment. At the same time, the design of the protective member effectively avoids the occurrence of freeze-thaw conditions, ensures winter construction operations, and effectively improves the existing construction environment.

[0004] The protective parts of the above-mentioned device prevent low temperatures through a multi-layer structure (protective layer, insulation layer, support layer, heating layer) to shield and protect the connection between the prefabricated piers and the abutment. However, the fixed size design of the protective parts makes it difficult to adapt to prefabricated piers of different diameters or shapes, limiting its flexibility for widespread application. In bridge engineering, the specifications of piers often vary according to design requirements, which requires that the reinforcement device must be highly adjustable and adaptable. At the same time, the outer walls of prefabricated piers often have uneven areas due to construction errors or material properties. The fixed structure and materials of existing protective parts often make it difficult to fit tightly to these irregular surfaces, resulting in poor sealing at the connection. In rainy weather, moisture can easily penetrate into the connection, providing conditions for the occurrence of freeze-thaw phenomena. Summary of the Invention

[0005] In response to the above problems, a bridge foundation pile reinforcement device and a reinforcement method for bridge maintenance are provided. By using an adaptive shielding mechanism and an assembled protective cover in combination, the application range can be broadened and the installation quality of the bridge piers can be improved.

[0006] In order to solve the problems of the prior art, the present invention provides a bridge foundation pile reinforcement device, including an adaptive protective part installed on the outside of a prefabricated bridge pier, the adaptive protective part including an assembled protective cover and an adaptive shielding mechanism, the assembled protective cover is provided in plurality and spliced ​​with each other, an insulation layer is provided in the wall thickness of the assembled protective cover, the inner wall of the assembled protective cover is also installed with a temperature control heating device and a temperature sensor, the adaptive shielding mechanism includes a multi-section telescopic shaft, an insulation shielding layer, a sealing mechanism and a stable bundling mechanism, the multi-section telescopic shaft is provided with a plurality of distributions on the top of the assembled protective cover, the insulation shielding layer is installed at the telescopic end of the multi-section telescopic shaft, the insulation shielding layer is used to shield the outer wall of the prefabricated bridge pier, the sealing mechanism is installed on the outer wall of the assembled protective cover, the sealing mechanism is used to seal the splicing of the insulation shielding layer, the stable bundling mechanism is installed at the extended end of the multi-section telescopic shaft, and the stable bundling mechanism is used to bundle and fix the insulation shielding layer.

[0007] Preferably, the thermal insulation shielding layer is provided with guide folding marks, a plurality of interlaced rings are installed on the extended end of the thermal insulation shielding layer, and a Velcro surface is provided on the outer splicing area of ​​the thermal insulation shielding layer.

[0008] Preferably, the sealing mechanism includes a winding rail installed on the side wall of the assembled protective cover, a first winding roller is installed inside the winding rail, and a sealing roll is provided on the first winding roller.

[0009] Preferably, the stable bundling mechanism includes a locking winding box installed on a multi-section telescopic shaft, a storage chamber and an interlaced rail are provided inside the locking winding box, a second winding drum is provided inside the storage chamber, a locking belt is installed on the second winding drum, and a positioning locking wheel is installed inside the interlaced rail.

[0010] Preferably, the positioning locking wheel includes an anti-rotation limit shaft installed inside the interlaced rail, a limit gear is installed on the outside of the anti-rotation limit shaft, the inside of the limit gear is covered with first limit slots, and the outside of the limit gear is covered with limit teeth.

[0011] Preferably, the outer wall of the anti-rotation limit shaft is provided with a plurality of limit slide rails, the interior of the limit slide rails is provided with limit blocks, the interior of the anti-rotation limit shaft is installed with a press-adjustment shaft, a connecting rod is installed between the press-adjustment shaft and the limit blocks, and a reset spring is installed between the press-adjustment shaft and the anti-rotation limit shaft.

[0012] Preferably, a flexible metal strip is provided inside the locking belt, an elastic buffer layer is provided on the outside of the locking belt, and a second limiting slot is provided on the inner wall of the elastic buffer layer.

[0013] Preferably, the stable bundling mechanism also includes a pushing mechanism for pushing the locking belt, the pushing mechanism includes a movable bracket installed on the outside of the locking winding box, a threaded adjustment shaft is installed between the movable bracket and the locking winding box, and a pressing roller is installed at the contact end of the movable bracket.

[0014] Preferably, the temperature-adjusting heating device comprises a ring-shaped heating pipe installed inside the assembled protective cover, the outer side of the ring-shaped heating pipe is provided with a spiral ventilation rail, the spiral ventilation rail is filled with inclined flow grooves, and a blower is installed on the spiral ventilation rail.

[0015] A bridge pile reinforcing device is used for a reinforcing method for bridge maintenance, and comprises the following steps.

[0016] S1, after the flood, firstly, the bridge affected by the flood is comprehensively evaluated, especially the damage of the connection part of the pier and the pile foundation is paid attention to, after confirming the pier needing to be repaired, special reinforcing equipment and materials are prepared, including the adjusted assembled protective cover.

[0017] S2, before the maintenance operation, the temporary support structure is used to stabilize the pier, so as to prevent instability caused by the reinforcing operation, then, the assembled protective cover is erected around the connection part of the pier and the pile foundation, the assembled protective cover has stronger structural strength and waterproof performance, so as to cope with possible secondary water flow impact, and at the same time, the internal space of the assembled protective cover is ensured to be sufficient, so as to facilitate subsequent construction operation.

[0018] S3, around the connection part of the pier and the pile foundation, a plurality of special assembled protective covers are accurately spliced, so as to ensure that the coverage is comprehensive and closely fitted, the sealing layer is used to strengthen the sealing performance of the connection part, so as to prevent water and impurities from entering, and a dry and stable construction environment is created for subsequent repair work.

[0019] S4, inside the assembled protective cover, firstly, the damaged concrete is cleaned, then, a repair scheme is formulated according to the damage, the multi-section telescopic shaft of the self-adaptive shielding mechanism and the heat preservation shielding layer are used to closely fit and cover the reinforcing area, and the stable binding mechanism and the sealing mechanism are used to ensure the sealing performance of the reinforcing effect and the overall structure.

[0020] S5, during the reinforcing process, the intelligent temperature control system in the protective cover is started, the internal environment is adjusted according to actual needs, so as to ensure that the concrete pouring and curing process is carried out in a suitable temperature range, at the same time, the internal temperature is continuously monitored by using the temperature sensor, and data is fed back to the control system, so as to timely adjust the temperature-adjusting heating device, and the construction quality is ensured.

[0021] S6, after the reinforcing operation is completed, the connection part of the pier and the pile foundation is continuously monitored, the repair effect is evaluated and data is recorded, according to the monitoring result, the maintenance strategy is timely adjusted, so as to ensure the long-term stability and safety of the bridge structure.

[0022] The beneficial effects of the present application compared with the prior art are:

[0023] 1. This device significantly improves its adaptability to prefabricated bridge piers of varying diameters, shapes, and irregular surfaces through its adaptive shielding mechanism and modular protective cover. The combination of a multi-stage telescopic shaft and a thermally insulating shield allows the device to flexibly adjust to closely fit the pier's exterior, effectively shielding and protecting both smooth and uneven surfaces, significantly expanding its application range.

[0024] 2. The built-in insulation layer of the assembled protective cover effectively isolates the external low-temperature environment and ensures a stable temperature inside the pier. At the same time, the built-in temperature control and heating device works in conjunction with the temperature sensor to achieve intelligent control of the internal environment, ensuring that the pier is always at the most suitable temperature conditions, effectively preventing structural damage or casting quality problems caused by low temperatures.

[0025] 3. The device is equipped with docking sealing layers and sealing mechanisms at multiple key locations, including the splicing area of ​​the assembled protective cover, the bottom, and the splicing of the thermal insulation shielding layer. These designs ensure the tightness of the overall structure, effectively prevent the penetration of external factors such as rainwater and air, reduce the risk of freeze-thaw phenomena, and ensure the long-term safety and stability of the bridge piers. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the installation status of bridge foundation pile reinforcement equipment.

[0027] Figure 2 A three-dimensional diagram of a bridge foundation pile reinforcement device Figure 1 .

[0028] Figure 3 A three-dimensional diagram of a bridge foundation pile reinforcement device Figure 2 .

[0029] Figure 4 It is a three-dimensional schematic diagram of part of the structure of a bridge foundation pile reinforcement equipment.

[0030] Figure 5 It is a three-dimensional schematic diagram of a thermal insulation shielding layer in a bridge foundation pile reinforcement device.

[0031] Figure 6 It is a three-dimensional schematic diagram of a sealing mechanism in a bridge foundation pile reinforcement device.

[0032] Figure 7 It is a three-dimensional schematic diagram of a stabilizing binding mechanism in a bridge foundation pile reinforcement device.

[0033] Figure 8 This is an exploded view of the stabilizing binding mechanism in a bridge pile reinforcement device.

[0034] Figure 9 It is a three-dimensional schematic diagram of a positioning locking wheel in a bridge foundation pile reinforcement device.

[0035] Figure 10 It is a planar cross-sectional view of an anti-rotation limit shaft in a bridge foundation pile reinforcement device.

[0036] Figure 11 It is a three-dimensional schematic diagram of a locking belt in a bridge foundation pile reinforcement device.

[0037] The numbers in the figure are:

[0038] 1. Adaptive shielding mechanism; 11. Multi-section telescopic shaft; 12. Insulation shielding layer; 121. Guide folding mark; 122. Interlaced ring; 123. Velcro sub-surface; 124. Rubber sealing layer; 13. Sealing mechanism; 131. Sealing roll; 1311. Velcro mother surface; 132. Winding rail; 133. First winding roller; 14. Stable bundling mechanism; 141. Locking winding box; 1411. Storage chamber; 1412. Interlaced rail; 142. Second winding roller; 1421. Rotary drive; 143. Positioning locking wheel; 1431. Anti-rotation limit shaft; 1432. Limiting slide rail; 1433. Limiting block; 143 4. Press-adjusting shaft; 1435. Connecting rod; 1436. Return spring; 1437. Limiting gear; 1438. First limiting slot; 1439. Limiting tooth; 144. Locking belt; 1441. Flexible metal strip; 1442. Elastic buffer layer; 1443. Second limiting slot; 145. Pushing mechanism; 1451. Movable bracket; 1452. Pressing roller; 1453. Threaded adjusting shaft; 2. Assembling protective cover; 21. Docking sealing layer; 22. Temperature regulating and heating device; 221. Annular heating pipe; 222. Spiral ventilation rail; 2221. Inclined circulation slot; 223. Air blower; 3. Prefabricated pier; 4. Capping platform. DETAILED DESCRIPTION

[0039] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] See also Figures 1 to 11As shown, a bridge foundation pile reinforcing device comprises an adaptive protection piece installed outside a prefabricated pier 3, the adaptive protection piece comprising an assembled protective cover 2 and an adaptive shielding mechanism 1, the assembled protective cover 2 being provided with multiple and mutually assembled protective covers 2, a heat preservation layer being arranged in the wall thickness of the assembled protective cover 2, a temperature sensor and a temperature adjusting heating device 22 being further arranged on the inner wall of the assembled protective cover 2, the adaptive shielding mechanism 1 comprising multiple sections of telescopic shafts 11, a heat preservation shielding layer 12, a sealing mechanism 13 and a stable binding mechanism 14, the multiple sections of telescopic shafts 11 being arranged on the top of the assembled protective cover 2, the heat preservation shielding layer 12 being arranged on the telescopic end of the multiple sections of telescopic shafts 11, the heat preservation shielding layer 12 being used for shielding the outer wall of the prefabricated pier 3, the sealing mechanism 13 being arranged on the outer wall of the assembled protective cover 2, the sealing mechanism 13 being used for blocking the joint of the heat preservation shielding layer 12, the stable binding mechanism 14 being arranged on the extended end of the multiple sections of telescopic shafts 11, and the stable binding mechanism 14 being used for binding and fixing the heat preservation shielding layer 12.

[0041] The construction workers first used auxiliary guiding equipment to precisely install the prefabricated pier 3 at the designated position of the pier cap 4. After completing the foundation connection between the prefabricated pier 3 and the pier cap 4, the pouring operation at the connection was carried out. Considering that cold climates or rainy seasons may cause the outside temperature to fall below the allowable construction temperature, which may affect the pouring quality, the subsequent protective steps need to be carried out quickly and effectively. After the pouring operation is completed, the construction workers quickly moved the two assembled protective covers 2 to both sides of the prefabricated pier 3 and accurately aligned them around its axis. The design of the assembled protective covers 2 allows them to be spliced ​​together to form a preliminary wrapping for the prefabricated pier 3. The internal insulation layer effectively isolates the low temperature from the outside. The splicing area and bottom of the assembled protective cover 2 are both provided with a butt sealing layer 21. The butt sealing layer 21 in the splicing area is mainly used to fill the tiny gaps between the assembled blocks to prevent external factors such as moisture and air from penetrating into the interior and affecting the protective effect of the pier. This layer of sealing is the basis for ensuring the overall integrity and sealing of the assembled protective cover 2. The addition of a docking sealing layer 21 to the bottom of the assembled protective cover 2 addresses the potential for bottom water seepage caused by uneven ground, soil movement, or water level fluctuations. This bottom sealing layer effectively isolates the base of the pier from erosion by groundwater or rainwater, protecting the pier's foundation from damage. The inner wall of the assembled protective cover 2 also incorporates a thermostatic heating device 22 and a temperature sensor. These intelligent systems automatically adjust the internal temperature based on the external temperature, ensuring the pier maintains optimal environmental conditions. The adaptive shielding mechanism 1 is the core of this design. Its multi-section telescopic shaft 11 is pre-installed in an inclined position on the top of the assembled protective cover 2 to accommodate prefabricated piers 3 of varying diameters and shapes. Construction workers operate the multi-section telescopic shaft 11 to gradually extend the thermal insulation shielding layer 12 toward the outer wall of the prefabricated pier 3. The flexibility of the telescopic shaft and the plasticity of the thermal insulation shielding layer 12 ensure a tight fit, even with uneven pier outer walls. When the thermal insulation shielding layer 12 is completely in contact with the outer wall of the pier and reaches the ideal tilted state, the construction workers further adjust the contact surface. Subsequently, the thermal insulation shielding layer 12 is firmly tied and fixed to the prefabricated pier 3 using the stabilizing binding mechanism 14. This step not only strengthens the stability of the thermal insulation shielding layer 12, but also further improves its sealing with the outer wall of the pier. At the same time, the sealing mechanism 13 is used to seal the joints of the thermal insulation shielding layer 12, effectively preventing rainwater penetration and freeze-thaw phenomena. After the entire reinforcement equipment is deployed, the temperature sensor will continuously monitor the internal temperature and transmit the data to the control system. If the temperature deviates from the set range, the temperature control heating device 22 will automatically start or adjust the power to maintain suitable environmental conditions. Regularly check the integrity of the assembled protective cover 2, the thermal insulation shielding layer 12 and the stabilizing binding mechanism 14 to ensure long-term protection. The device realizes efficient and flexible protection of prefabricated piers 3 of different specifications.The close cooperation between the assembled protective cover 2 and the adaptive shielding mechanism 1 not only improves the protection effect, but also ensures good sealing and stability, providing strong guarantee for the smooth construction and long-term use of bridge projects in cold climates.

[0042] See also Figures 2 to 5 As shown, the thermal insulation shielding layer 12 is provided with a guide folding mark 121, and a plurality of interlaced rings 122 are installed on the extended end of the thermal insulation shielding layer 12. The outer splicing area of ​​the thermal insulation shielding layer 12 is provided with a Velcro surface 123.

[0043] An insulation layer is provided at the thick part of the wall of the insulation shielding layer 12 , a waterproof layer is provided on the outside of the insulation shielding layer 12 , and a rubber sealing layer 124 is provided in the area where the insulation shielding layer 12 and the outer wall of the prefabricated bridge pier 3 are in contact.

[0044] The guide fold marks 121 provided on the thermal insulation shielding layer 12 provide construction workers with clear folding direction guidance during operation. These folds are processed through a special process so that the thermal insulation shielding layer 12 can be smoothly folded or unfolded along a predetermined trajectory, so that it can more easily fit with the outer wall of the prefabricated bridge pier 3. Under the action of the telescopic shaft, the thermal insulation shielding layer 12 can be gradually unfolded along the folds, covering the outer wall of the bridge pier to achieve a tight wrap. The multiple interlaced rings 122 installed on the extended end of the thermal insulation shielding layer 12 provide a convenient interface for subsequent fixing work. These interlaced rings 122 cooperate with the ropes or belts of the stable bundling mechanism 14, and the thermal insulation shielding layer 12 is firmly tied to the prefabricated bridge pier 3 by interlacing, knotting or locking. The design of the interlaced rings 122 makes the bundling process faster and simpler, and not easy to loosen. The outer splicing area of ​​the thermal insulation shielding layer 12 is provided with a Velcro sub-surface 123. This design greatly improves the sealing performance of the splicing part of the thermal insulation shielding layer 12. When two sections of the thermal insulation shielding layer 12 need to be spliced, it is only necessary to relatively fit the sealing mechanism 13 with the Velcro sub-surface 123 to achieve quick and tight splicing. The adhesive force of the Velcro ensures that the splicing part is not easy to seep water or leak air, thereby maintaining the sealing effect of the entire thermal insulation shielding layer 12. An insulation layer is provided at the thick part of the wall of the thermal insulation shielding layer 12. The insulation layer is made of high-efficiency thermal insulation material and has excellent thermal insulation performance. It can effectively block the invasion of low temperatures from the outside and maintain the temperature of the environment around the bridge pier stable. At the same time, the insulation layer can also reduce the heat exchange between the bridge pier and the external environment, reduce energy consumption, and improve energy utilization efficiency. A waterproof layer is provided on the outside of the thermal insulation shielding layer 12. The waterproof layer is made of a material with strong weather resistance and good waterproof effect. It can effectively isolate the penetration of external water sources such as rainwater and snow water, and protect the insulation layer and bridge piers from water erosion. The presence of the waterproof layer enables the thermal insulation shielding layer 12 to maintain a good working condition in severe rainy and snowy weather, ensuring the safety and stability of the bridge piers. A rubber sealing layer 124 is also provided in the area where the thermal insulation shielding layer 12 fits with the outer wall of the prefabricated bridge pier 3. The rubber sealing layer 124 has good elasticity and sealing properties, and can fit tightly to various uneven places on the outer wall of the bridge pier to form an effective sealing barrier. It can effectively prevent external factors such as moisture and air from penetrating through tiny gaps. The thermal insulation shielding layer 12 has good sealing, thermal insulation and stability in cold climates, providing a strong guarantee for the safe construction and long-term use of bridge projects.

[0045] See also Figures 2 to 6 As shown, the sealing mechanism 13 includes a winding rail 132 installed on the side wall of the assembled protective cover 2, a first winding roller 133 is installed inside the winding rail 132, and a sealing roll 131 is provided on the first winding roller 133.

[0046] The outer wall of the sealing roll 131 is provided with a waterproof layer, and the inner wall of the sealing roll 131 is provided with a Velcro female surface 1311 .

[0047] The winding rail 132 is used to support and fix the winding drum. The position and angle of the winding rail 132 are precisely calculated to ensure that the sealing roll 131 can be smoothly unfolded and cover the area that needs to be sealed. The first winding drum 133 is installed inside the winding rail 132, which is the main storage and unfolding device of the sealing roll 131. The first winding drum 133 can rotate smoothly to control the retraction and release of the sealing roll 131. When sealing is required, the first winding drum 133 rotates counterclockwise for unfolding and use, and when the sealing roll 131 needs to be retracted, it rotates clockwise. The outer wall of the sealing roll 131 is provided with a waterproof layer, which is made of high-performance waterproof material and can effectively isolate the penetration of external water sources such as moisture, rainwater and snow water. The presence of the waterproof layer ensures the waterproof performance of the sealing roll 131 under adverse weather conditions and ensures the dryness and stability of the interior of the assembled protective cover 2. The inner wall of the sealing roll 131 is provided with a Velcro surface 1311, which is a material with strong adhesion and can be tightly attached to the Velcro surface 123 on the outside of the thermal insulation shielding layer 12. Through the cooperation of the Velcro surface, the sealing roll 131 can be quickly and firmly attached to the splicing of the thermal insulation shielding layer 12 or the assembled protective cover 2, achieving a seamless seal.

[0048] When it is necessary to seal the gap between the assembled protective cover 2 and the thermal insulation shielding layer 12, the construction workers first operate the first winding roller 133 to rotate it counterclockwise to release the sealing roll 131. The sealing roll 131 is gradually unfolded along the winding rail 132 to cover the area that needs to be sealed. During the unfolding process of the sealing roll 131, the construction workers fit the Velcro mother surface 1311 on the inner wall of the sealing roll 131 relative to the Velcro sub-surface 123 on the assembled protective cover 2. By pressing gently, ensure that the two are tightly adhered together to form an effective sealing barrier. After the sealing is completed, the construction workers need to carefully check whether the sealing roll 131 completely covers the gap and confirm whether it is firmly adhered. If necessary, appropriate adjustments can be made to ensure that the sealing effect is optimal. This improves the sealing performance of the equipment and simplifies the sealing operation process, providing reliable guarantees for the safe construction and long-term use of bridge projects.

[0049] See also Figure 2 、 Figure 3 、 Figure 7 and Figure 8 As shown, the stable bundling mechanism 14 includes a locking winding box 141 installed on the multi-section telescopic shaft 11, and the interior of the locking winding box 141 is provided with a storage chamber 1411 and an interlaced rail 1412, and the interior of the storage chamber 1411 is provided with a second winding roller 142, and a locking belt 144 is installed on the second winding roller 142, and a positioning locking wheel 143 is installed inside the interlaced rail 1412.

[0050] The stable binding mechanism 14 further includes a rotary driver 1421 for driving the second winding drum 142 to rotate and rewind.

[0051] First, the core component of the stable bundling mechanism 14 includes a locking winding box 141 installed on a multi-section telescopic shaft 11, so that the bundling mechanism can be flexibly adjusted according to the specific size and shape of the bridge piles, and adapt to different reinforcement requirements by the extension and contraction of the telescopic shaft. Inside the locking winding box 141, two key areas are provided: a storage chamber 1411 and an interlaced rail 1412. The storage chamber 1411 is the main space for storing the locking belt 144, which is an important material for tightening and stabilizing the piles during the reinforcement process. A second winding drum 142 is installed in the storage chamber 1411, and the locking belt 144 is wound around it for orderly winding and release. When pile reinforcement is required, the rotary driver 1421 starts working to drive the second winding drum 142 to rotate. The rotary driver 1421 serves as a power source, providing the necessary torque to rotate the second winding drum 142 in a preset direction, thereby driving the locking belt 144 to be drawn out or recovered from the storage chamber 1411. This retraction and release mechanism ensures that the locking belt 144 can accurately and quickly reach the position that needs to be reinforced. At the same time, a positioning locking wheel 143 is installed inside the inserted rail 1412. The function of the positioning locking wheel 143 is to position and lock the locking belt 144 through its structural characteristics after the locking belt 144 is drawn out and bypasses the foundation pile, ensuring that the locking belt 144 can be firmly fixed on the foundation pile to achieve the purpose of reinforcement.

[0052] When the insulation shield 12 needs to be installed, the operator activates the rotary drive 1421, rotating the second winding drum 142 and releasing the locking band 144. The locking band 144 is guided through the multiple interlaced loops 122 until its other end reaches the other side of the insulation shield 12. During this process, the locking band 144 may need to be manually or automatically threaded through each interlaced loop 122 until the entire path is completed. Once the locking band 144 has passed through all interlaced loops 122 and reached the other end of the insulation shield 12, the operator further tightens the locking band 144 to ensure a tight fit between the prefabricated bridge pier 3 and the insulation shield 12. At this point, the positioning locking wheel 143 within the interlaced rail 1412 comes into play, securing the locking band 144 in place and preventing it from loosening or falling off. Once the locking band 144 is fully tightened and secured, the insulation shield 12 is securely attached to the prefabricated bridge pier 3. At this time, the entire reinforced structure not only provides additional support and stability, but the tightly fitting thermal insulation shielding layer 12 effectively protects the foundation piles from the influence of the external environment.

[0053] See also Figure 7 and Figure 8As shown, the positioning locking wheel 143 includes an anti-rotation limiting shaft 1431 mounted inside the through-inserted card rail 1412. The outer side of the anti-rotation limiting shaft 1431 is mounted with a limiting gear 1437. The inside of the limiting gear 1437 is filled with first limiting clamping grooves 1438. The outer side of the limiting gear 1437 is filled with limiting clamping teeth 1439.

[0054] The anti-rotation limiting shaft 1431 is in clamping connection with the first limiting clamping grooves 1438, and is used to limit the rotation direction of the limiting gear 1437, so that the limiting gear 1437 can only rotate in one direction.

[0055] The anti-rotation limiting shaft 1431 is not only the mounting basis of the limiting gear 1437, but also limits the rotation direction of the limiting gear 1437 through its special design. Specifically, the anti-rotation limiting shaft 1431 is in clamping connection with the first limiting clamping grooves 1438 inside the limiting gear 1437. This clamping connection allows the limiting gear 1437 to only rotate in a single direction when subjected to external force, thereby achieving precise control of the rotation direction. Due to the limiting effect of the anti-rotation limiting shaft 1431, the limiting gear 1437 can only rotate in the predetermined direction when receiving the pulling force or pushing force from the locking belt 144. This one-way rotation mechanism ensures the stability and reliability of the locking process, avoiding locking failure or loosening due to accidental rotation of the limiting gear 1437. When the locking belt 144 is guided to pass through the through-inserted ring 122 and is tightened, the locking belt 144 will enter the inside of the through-inserted card rail 1412 and come into contact with the limiting clamping teeth 1439 of the limiting gear 1437, causing the limiting gear 1437 to rotate in one direction. Since the limiting gear 1437 can only rotate in one direction, once the locking belt 144 enters the through-inserted card rail 1412 and is locked, it is not easy to loosen or fall off due to external force. The positioning locking wheel 143 achieves precise locking and positioning of the locking belt 144 through the clamping connection between the anti-rotation limiting shaft 1431 inside it and the limiting gear 1437, as well as the one-way rotation mechanism of the limiting gear 1437, thereby ensuring the stability and reliability of the bridge pile reinforcement equipment.

[0056] As shown in Figure 8 , Figure 9 and Figure 10 , the outer wall of the anti-rotation limiting shaft 1431 is provided with a plurality of limiting sliding rails 1432, and the inside of each limiting sliding rail 1432 is provided with a limiting clamping block 1433. The anti-rotation limiting shaft 1431 is mounted with a pressing adjusting shaft 1434, and a connecting rod 1435 is mounted between the pressing adjusting shaft 1434 and each limiting clamping block 1433. A return spring 1436 is mounted between the pressing adjusting shaft 1434 and the anti-rotation limiting shaft 1431.

[0057] In the normal locked state, the multiple limiting slide rails 1432 outside the anti-rotation limiting shaft 1431 are internally provided with limiting blocks 1433. These limiting blocks 1433 are connected to the pressing and adjusting shaft 1434 via a connecting rod 1435 and are maintained in an outwardly expanded state by a return spring 1436. When the limiting gear 1437 is installed on the anti-rotation limiting shaft 1431, the limiting blocks 1433 accurately snap into the first limiting slot 1438 inside the limiting gear 1437. This snap-fit ​​connection ensures that the limiting gear 1437 can only rotate counterclockwise, not clockwise. When the locking belt 144 is guided through the interlaced rails 1412 and tightened, it contacts the limiting teeth 1439 of the limiting gear 1437, pushing the limiting gear 1437 to rotate counterclockwise. Since the limiting gear 1437 is limited to one-way rotation by the limiting block 1433 , the locking belt 144 can be firmly fixed in the insertion rail 1412 and is not easily loosened or fallen off due to external force.

[0058] When the locking band 144 needs to be released, the operator presses down on the adjustment shaft 1434. This action causes the limiting block 1433 to retract inward synchronously through the connecting rod 1435, and the return spring 1436 is compressed to store energy. As the limiting blocks 1433 retract, the engagement between them and the first limiting slot 1438 of the limiting gear 1437 is released, thereby removing the restriction on the counterclockwise rotation of the limiting gear 1437. Once the limiting block 1433 disengages from the first limiting slot 1438, the limiting gear 1437 can rotate clockwise. At this point, the operator can easily pull the locking band 144 out of the interlaced rail 1412, thereby releasing the locking band 144. After releasing locking band 144, the operator releases pressure on adjustment shaft 1434. Return spring 1436 releases its stored energy, pushing adjustment shaft 1434 and limit block 1433 back to their initial positions, ready for the next locking operation. This allows for precise control and rapid unlocking of locking band 144, improving the efficiency of the reinforcement operation while ensuring the stability and reliability of the reinforced structure.

[0059] See also Figure 7 and Figure 11 As shown, a flexible metal strip 1441 is provided inside the locking belt 144 , an elastic buffer layer 1442 is provided on the outside of the locking belt 144 , and a second limiting slot 1443 is provided on the inner wall of the elastic buffer layer 1442 .

[0060] The flexible metal strip 1441 embedded inside the locking band 144 provides it with strong structural support. The flexible metal strip 1441 has high tensile strength and bending stiffness, and can effectively resist external stress and deformation during the locking process, ensuring the stability and reliability of the locking band 144. Although the flexible metal strip 1441 provides strong support, its "flexible" characteristics also allow it to adapt to the irregular shape or slight deformation of the surface of the pile foundation to a certain extent, thereby ensuring that the locking band 144 can fit tightly to the surface of the pile foundation, achieving a better reinforcement effect. The elastic buffer layer 1442 wrapped around the outside of the locking band 144 is mainly made of elastic material. The elastic buffer layer 1442 can fit tightly to the surface of the pile foundation, filling the tiny bumps or gaps on the surface of the pile foundation, thereby enhancing the locking effect. The shape and size of the second limiting slot 1443 match the limiting tooth 1439 on the outside of the limiting gear 1437. When the locking belt 144 is inserted into the inside of the card rail, the second limiting slot 1443 will engage with the limiting tooth 1439 of the limiting gear 1437. The second limiting slot 1443 and the limiting tooth 1439 cooperate to prevent loosening.

[0061] See also Figure 7 and Figure 8 As shown, the stable bundling mechanism 14 also includes a pushing mechanism 145 for pushing the locking belt 144. The pushing mechanism 145 includes a movable bracket 1451 installed on the outside of the locking winding box 141. A threaded adjustment shaft 1453 is installed between the movable bracket 1451 and the locking winding box 141. A pressing roller 1452 is installed at the contact end of the movable bracket 1451.

[0062] The pressure roller 1452 is used to push the locking belt 144. After the locking belt 144 is tied and positioned, the pressure roller 1452 can effectively push the locking belt 144 to fit the prefabricated bridge pier 3. Ensure the bundling effect. The threaded adjustment shaft 1453 is connected between the mobile bracket 1451 and the locking reel 141. By rotating the threaded adjustment shaft 1453, the linear movement distance of the mobile bracket 1451 can be accurately controlled. This design not only improves the accuracy of the adjustment, but also makes the operation process more convenient. The pressure roller 1452 is installed at the contact end of the mobile bracket 1451 and is a key component of the pushing mechanism 145. The pressure roller 1452 adopts a rolling design to reduce the friction between it and the locking belt 144, while ensuring that the force can be evenly applied during the pushing process.

[0063] When the locking belt 144 is tied and initially positioned on the prefabricated bridge pier 3 through the locking reel 141 and other mechanisms, the operator rotates the threaded adjustment shaft 1453 to drive the movable bracket 1451 to move linearly in a predetermined direction. As the movable bracket 1451 moves, the pressure roller 1452 installed at its contact end gradually approaches the locking belt 144. When the pressure roller 1452 contacts the locking belt 144, continued rotation of the threaded adjustment shaft 1453 pushes the pressure roller 1452 to roll in the direction of the locking belt 144, thereby effectively pushing the locking belt 144 to fit the prefabricated bridge pier 3. Because the pressure roller 1452 adopts a rolling design, the pushing process is smooth and uniform, avoiding local deformation or damage to the locking belt 144 caused by uneven force.

[0064] By continuously adjusting the threaded adjustment shaft 1453 , the pushing force and position of the pressing roller 1452 can be precisely controlled to ensure that the locking belt 144 can fit tightly against all parts of the prefabricated pier 3 , thereby achieving the best reinforcement effect.

[0065] See also Figures 2 to 4 As shown, the temperature control heating device 22 includes an annular heating tube 221 installed inside the assembled protective cover 2, and a spiral ventilation rail 222 is provided on the outside of the annular heating tube 221. The spiral ventilation rail 222 is covered with inclined circulation grooves 2221, and a blower 223 is also installed on the spiral ventilation rail 222.

[0066] The assembled protective cover 2 serves as the outer shell of the entire temperature-regulating heating device 22. It not only protects the internal heating and ventilation components from the influence of the external environment, but also ensures the sealing and safety of the heating process, so that the heat can be concentrated in the reinforced area. The annular heating pipe 221 is installed in the inner center of the assembled protective cover 2 and is the core component for generating heat. The annular design allows heat to be radiated evenly along the annular path, reducing temperature gradients and improving heating uniformity. The spiral ventilation rail 222 is arranged on the outside of the annular heating pipe 221. Its spiral shape not only increases the length of the air circulation path, but also allows the air to continuously change direction during the flow process, promoting the effective transfer and distribution of heat. Inclined circulation groove 2221: The spiral ventilation rail 222 is covered with inclined circulation grooves. These circulation grooves can guide the air to flow in a specific direction, while increasing the contact area between the air and the wall of the spiral ventilation rail 222, thereby improving the heat exchange efficiency. Installed at the appropriate position of the spiral ventilation rail 222, it is responsible for driving the air to circulate in the spiral ventilation rail 222. The airflow generated by the blower 223 is accelerated and guided through the inclined circulation slots 2221 to form an effective air circulation system.

[0067] When the bridge foundation piles need to be heated and reinforced, the air blower 223 is started first. The air flow generated by the air blower 223 is guided into the spiral ventilation track 222 and flows along the spiral path. At the same time, the annular heating tube 221 starts working and generates heat. This heat is transferred to the air in the spiral ventilation track 222 through the wall of the annular heating tube 221, causing the air temperature to gradually increase. The high-temperature air circulates continuously in the spiral ventilation track 222, and is accelerated and guided by the inclined circulation groove 2221, forming a strong convection heat exchange effect. This convection heat exchange allows heat to be evenly transferred to every corner of the assembled protective cover 2, thereby achieving comprehensive heating of the reinforced area. During the heating process, the operator can adjust the wind speed of the air blower 223 and the power of the annular heating tube 221 as needed to control the heating temperature and speed to ensure that the reinforcement effect is optimal.

[0068] A method for reinforcing a bridge using a bridge foundation pile reinforcement device comprises the following steps:

[0069] S1. After the flood, first conduct a comprehensive assessment of the bridge affected by the flood, paying special attention to the damage at the connection between the piers and the pile foundation. After confirming the piers that need repair, prepare special reinforcement equipment and materials, including the adjusted assembly protective cover 2.

[0070] S2. Before the maintenance work, use temporary support structures to stabilize the bridge piers to prevent instability caused by the reinforcement work. Then, build assembled protective covers 2 around the connection between the bridge piers and the pile foundations. These assembled protective covers 2 have stronger structural strength and waterproof performance to cope with possible secondary water flow impacts. At the same time, ensure that the internal space of the assembled protective covers 2 is sufficient to facilitate subsequent construction operations.

[0071] S3. Precisely assemble multiple custom-made protective covers 2 around the connection between the pier and the pile foundation to ensure full coverage and a tight fit. Utilize a butt-jointed sealing layer 21 to enhance the sealing of the connection, preventing moisture and impurities from entering, and creating a dry and stable construction environment for subsequent repair work.

[0072] S4. Inside the assembled protective cover 2, the damaged concrete is first cleaned, and then a repair plan is formulated according to the damage situation. The multi-section telescopic shaft 11 and the thermal insulation shielding layer 12 of the adaptive shielding mechanism 1 are used to tightly fit and cover the reinforced area. At the same time, the stable bundling mechanism 14 and the sealing mechanism 13 are used to ensure the reinforcement effect and the sealing of the overall structure.

[0073] S5. During the reinforcement process, the intelligent temperature control system in the assembled protective cover 2 is started to adjust the internal environment according to actual needs to ensure that the concrete pouring and curing processes are carried out within an appropriate temperature range. At the same time, the internal temperature is continuously monitored using a temperature sensor and the data is fed back to the control system so that the temperature control and heating device 22 can be adjusted in time to ensure construction quality.

[0074] S6. After the reinforcement work is completed, continue to regularly monitor the connection between the pier and the pile foundation, evaluate the repair effect and record the data. Based on the monitoring results, adjust the maintenance strategy in a timely manner to ensure the long-term stability and safety of the bridge structure.

[0075] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A bridge pile reinforcement device, comprising an adaptive protective member installed on the outside of a prefabricated bridge pier (3), characterized in that: The adaptive protective member comprises an assembled protective cover (2) and an adaptive shielding mechanism (1); The assembled protective cover (2) is provided with a plurality of parts and is spliced ​​together. A heat-insulating layer is provided in the wall thickness of the assembled protective cover (2). A temperature-regulating heating device (22) and a temperature sensor are also installed on the inner wall of the assembled protective cover (2). The adaptive shielding mechanism (1) comprises a multi-section telescopic shaft (11), a heat-insulating shielding layer (12), a sealing mechanism (13) and a stable binding mechanism (14); A plurality of multi-section telescopic shafts (11) are provided and distributed on the top of the assembled protective cover (2); The heat-insulating shielding layer (12) is installed at the telescopic end of the multi-section telescopic shaft (11), and the heat-insulating shielding layer (12) is used to shield the outer wall of the prefabricated bridge pier (3); The sealing mechanism (13) is installed on the outer wall of the assembled protective cover (2), and the sealing mechanism (13) is used to seal the joint of the thermal insulation shielding layer (12); The stabilizing binding mechanism (14) is installed at the extended end of the multi-section telescopic shaft (11), and the stabilizing binding mechanism (14) is used to bind and fix the heat-insulating shielding layer (12); The heat-insulating shielding layer (12) is provided with a guide folding mark (121), a plurality of interlaced rings (122) are installed on the extended end of the heat-insulating shielding layer (12), and a Velcro surface (123) is provided on the outer splicing area of ​​the heat-insulating shielding layer (12); The sealing mechanism (13) comprises a winding rail (132) installed on the side wall of the assembled protective cover (2), a first winding roller (133) is installed inside the winding rail (132), and a sealing roll (131) is provided on the first winding roller (133); The stable bundling mechanism (14) comprises a locking reel box (141) mounted on a multi-section telescopic shaft (11); a material storage chamber (1411) and an interlaced rail (1412) are provided inside the locking reel box (141); a second reeling roller (142) is provided inside the material storage chamber (1411); a locking belt (144) is mounted on the second reeling roller (142); and a positioning locking wheel (143) is mounted inside the interlaced rail (1412); The positioning locking wheel (143) includes an anti-rotation limiting shaft (1431) installed inside the interlaced clamping rail (1412), a limiting gear (1437) is installed on the outside of the anti-rotation limiting shaft (1431), the inside of the limiting gear (1437) is covered with first limiting clamping grooves (1438), and the outside of the limiting gear (1437) is covered with limiting clamping teeth (1439); The outer wall of the anti-rotation limit shaft (1431) is provided with a plurality of limit slide rails (1432), the interior of the limit slide rails (1432) is provided with a limit block (1433), the interior of the anti-rotation limit shaft (1431) is provided with a pressing adjustment shaft (1434), a connecting rod (1435) is provided between the pressing adjustment shaft (1434) and the limit block (1433), and a return spring (1436) is provided between the pressing adjustment shaft (1434) and the anti-rotation limit shaft (1431).

2. The bridge foundation pile reinforcement device according to claim 1, characterized in that: A flexible metal strip (1441) is provided inside the locking belt (144), an elastic buffer layer (1442) is provided on the outside of the locking belt (144), and a second limiting slot (1443) is provided on the inner wall of the elastic buffer layer (1442).

3. The bridge foundation pile reinforcement device according to claim 2, characterized in that: The stabilizing binding mechanism (14) further comprises a pushing mechanism (145) for pushing the locking belt (144), the pushing mechanism (145) comprising a movable bracket (1451) mounted on the outside of the locking reel box (141), a threaded adjustment shaft (1453) being mounted between the movable bracket (1451) and the locking reel box (141), and a pressing roller (1452) being mounted on the contact end of the movable bracket (1451).

4. The bridge foundation pile reinforcement device according to claim 1, characterized in that: The temperature regulating heating device (22) comprises an annular heating tube (221) installed inside the assembled protective cover (2); a spiral ventilation track (222) is provided on the outer side of the annular heating tube (221); the spiral ventilation track (222) is covered with inclined circulation grooves (2221); and a blower (223) is also installed on the spiral ventilation track (222).

5. A method for reinforcing a bridge foundation pile using a bridge foundation pile reinforcement device, the method comprising: The following steps are included: S1. After the flood, first conduct a comprehensive assessment of the bridge affected by the flood, paying special attention to the damage at the connection between the piers and the pile foundation. After confirming the piers that need repair, prepare special reinforcement equipment and materials, including the adjusted assembly protective cover (2); S2. Before the maintenance work, a temporary support structure is used to stabilize the bridge pier to prevent instability caused by the reinforcement work. Subsequently, an assembled protective cover (2) is built around the connection between the bridge pier and the pile foundation. The assembled protective cover (2) has stronger structural strength and waterproof performance to cope with possible secondary water flow impact. At the same time, it is ensured that the internal space of the assembled protective cover (2) is sufficient to facilitate subsequent construction operations; S3. Precisely assemble multiple specially made protective covers (2) around the connection between the pier and the pile foundation to ensure full coverage and a tight fit. Use a butt seal layer (21) to strengthen the sealing of the connection to prevent moisture and impurities from entering, creating a dry and stable construction environment for subsequent repair work. S4. Inside the assembled protective cover (2), the damaged concrete is first cleaned, and then a repair plan is formulated according to the damage situation. The multi-section telescopic shaft (11) and the thermal insulation shielding layer (12) of the adaptive shielding mechanism (1) are used to tightly fit and cover the reinforced area. At the same time, the stable binding mechanism (14) and the sealing mechanism (13) are used to ensure the reinforcement effect and the sealing of the overall structure; S5. During the reinforcement process, the intelligent temperature control system in the assembled protective cover is activated to adjust the internal environment according to actual needs to ensure that the concrete pouring and curing process are carried out within a suitable temperature range. At the same time, the internal temperature is continuously monitored using a temperature sensor and the data is fed back to the control system so that the temperature control and heating device (22) can be adjusted in time to ensure the construction quality; S6. After the reinforcement work is completed, continue to regularly monitor the connection between the pier and the pile foundation, evaluate the repair effect and record the data. Based on the monitoring results, adjust the maintenance strategy in a timely manner to ensure the long-term stability and safety of the bridge structure.

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