Device and method for diagnosing and repairing undermining of fabricated wharf foundation bed

Abstract

The invention discloses a diagnosis and repair device and method for prefabricated wharf foundation bed undermining, and belongs to the technical field of wharf foundation bed repairation.The diagnosis and repair method for prefabricated wharf foundation bed undermining comprises the steps that S1, initial data of a stress sensor after a caisson makes contact with a foundation bed are obtained, and the initial data serve as a reference value to be stored in a control center; s2, acquiring real-time data of the stress sensor, analyzing a pressure change trend, and presetting a threshold range according to the pressure change trend; s3, the position of an abnormal stress sensor is obtained, the pressure change trend of the foundation bed is analyzed, and the foundation bed undermining area range is obtained; s4, the grouting amount of underwater non-segregation concrete and the number of baffle units are obtained; and S5, the baffle units are spliced, and underwater non-segregation concrete is injected into the repairing cavity till the abnormal data are recovered to the preset threshold value range. According to the method, the problems of the foundation bed can be found and repaired in time, the structural stability and safety of the fabricated wharf are ensured, and the efficiency and quality of repairing work are improved.

Description

Technical Field

[0001] The invention relates to the technical field of wharf foundation bed repair, and in particular to a diagnostic and repair device and method for hollowing out an assembled wharf foundation bed. Background Art

[0002] During the long-term operation of the wharf, especially in harsh and complex hydrological environments, the riprap foundation bed is easily affected by factors such as water scouring, wave impact and tugboat operation, resulting in hollowing of the foundation bed. Hollowing of the foundation bed not only affects the safety, applicability and durability of the wharf, but also causes problems such as cracks, structural damage, uneven settlement, and ultimately may lead to serious damage or even failure of the wharf structure.

[0003] At present, the method of post-repair is usually adopted to solve the problem of hollowing out the foundation bed, such as detecting the damage through underwater exploration by divers and underwater video recording, and repairing by throwing stones, lifting concrete, and bagging concrete. However, these methods have certain limitations. On the one hand, due to the lag in detection, the problem can only be discovered when the damage reaches a certain extent and shows obvious signs, at which time greater damage has often been caused. On the other hand, in a complex underwater environment, repair work is difficult, costly and inefficient. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a diagnostic and repair device and method for hollowing out of the prefabricated wharf base bed, which can identify signs of hollowing out of the base bed in the early stages, thereby achieving early warning and rapid repair, and ensuring the safety of the wharf structure.

[0005] According to the first aspect of the present invention, the diagnostic and repair device for hollowing out of the foundation bed of an assembled wharf comprises: a plurality of monitoring mechanisms, all of which are arranged in the assembled wharf, and are evenly distributed along the length direction of the assembled wharf, and the monitoring mechanisms are used to monitor stress data between different positions on the assembled wharf and the foundation bed; a control center, which is electrically connected to the monitoring mechanisms, and is used to record and analyze data acquired by the monitoring mechanisms; a combined baffle, which is arranged on a caisson corresponding to the monitoring mechanism with abnormal data, and is detachably connected to the caisson of the assembled wharf, and is detachably connected to the foundation bed, and the combined baffle is spanned between the caisson and the foundation bed, and the combined baffle, the caisson and the foundation bed are enclosed to form a repair cavity; and a plurality of grouting mechanisms, which are detachably arranged on the breast wall of the assembled wharf, and are evenly distributed along the length direction of the assembled wharf, and are detachably connected to the combined baffle, and the grouting mechanisms and the combined baffle are connected so that the grouting mechanisms are connected to the repair cavity, thereby repairing and reinforcing the hollowed-out foundation bed at the bottom of the assembled wharf through grouting filling.

[0006] The diagnostic and repair device for hollowing out of the foundation bed of an assembled wharf according to the embodiment of the present invention has at least the following beneficial effects: real-time monitoring of the pressure change of the foundation bed by multiple monitoring mechanisms, and rapid initiation of the grouting process by a grouting mechanism after precise positioning of the specific hollowing-out position, so as to accurately repair the hollowed-out part of the foundation bed and restore the integrity of the foundation bed, thereby being able to identify abnormal conditions in the early stage of hollowing out, achieving timely discovery and repair of foundation bed problems, and ensuring the structural stability and safety of the assembled wharf, which not only reduces diving operations, reduces the risks of seabed operations, and improves the efficiency and quality of repair work, but also reduces the frequency of large-scale maintenance of the wharf, reduces maintenance costs, and improves the digital operation and maintenance level of the wharf through continuous monitoring of the health status of the foundation bed.

[0007] According to some embodiments of the present invention, a solar power supply system is also included. The solar power supply system is arranged on the assembled wharf, all monitoring mechanisms are electrically connected to the solar power supply system, and the solar power supply system is electrically connected to the control center. The solar power supply system is used to provide power to the monitoring mechanisms and the control center.

[0008] According to some embodiments of the present invention, the monitoring mechanism includes: a protective tube, which is buried in the caisson and located at the seaward end of the caisson; a stress sensor, which is arranged in the protective tube and located at the bottom of the caisson, and is used to monitor the pressure changes between the caisson and the bed; a shielded wire, which is arranged in the protective tube and electrically connected to the stress sensor, and is used to transmit signals and reduce interference of external electromagnetic fields to the stress sensor; a collector and a signal transmitter, which are connected to the shielded wire and connected to the shielded wire, and the collector and the signal transmitter are used to transmit the collected data to the control center.

[0009] According to some embodiments of the present invention, the combined baffle includes a plurality of baffle units, which are spliced ​​in sequence along the extension direction of the prefabricated wharf, and two adjacent baffle units are detachably connected, each baffle unit is provided with a grouting hole, each baffle unit is detachably connected to the front toe of the caisson through a connecting piece, and each baffle unit is detachably connected to the base bed through a fixing piece, and the baffle units are used to prevent grouting overflow.

[0010] According to some embodiments of the present invention, the connecting member includes a limiting ring and a limiting buckle that can cooperate with the limiting ring. One of the limiting ring and the limiting buckle is arranged on the baffle unit, and the other is arranged on the front toe of the caisson.

[0011] According to some embodiments of the present invention, the grouting mechanism includes: a material conveying and hoisting assembly, which is detachably arranged on the breast wall of the prefabricated wharf, and the material conveying and hoisting assembly is used for conveying grouting materials and handling works; a grouting pipe, one end of the grouting pipe is connected to the material conveying and hoisting assembly, and the other end of the grouting pipe is connected to the repair cavity through the grouting hole. The material conveying and hoisting assembly adjusts the position of the grouting pipe so that the output end of the grouting pipe is aligned with the grouting hole, and the grouting pipe injects the grouting material into the repair cavity.

[0012] According to some embodiments of the present invention, the material conveying and hoisting assembly includes: a base, which is detachably arranged on the breast wall; a material conveying hopper, which is arranged on the base, the output end of the material conveying hopper is connected to the input end of the grouting pipe, and the material conveying hopper is used to store grouting materials; a first hoisting member, which is connected to the grouting pipe, and the first hoisting member is used to limit the position of the grouting pipe in the horizontal direction; a second hoisting member, which is arranged on the base, the second hoisting member is connected to the first hoisting member, and the second hoisting member is used to limit the position of the first hoisting member in the vertical direction.

[0013] According to the second aspect of the present invention, a method for diagnosing and repairing hollowed-out foundation bed of a prefabricated dock comprises:

[0014] S1: Obtain the initial data of the stress sensor after the caisson contacts the bed, and store the initial data as a reference value in the control center;

[0015] S2: Acquire real-time data from the stress sensor, analyze the pressure change trend based on the initial data and the real-time data, and preset a threshold range based on the pressure change trend;

[0016] S3: obtaining the position of the abnormal stress sensor according to the preset threshold range, analyzing the bed pressure change trend according to the monitoring data of the abnormal stress sensor, and obtaining the bed hollowing area range according to the bed pressure change trend;

[0017] S4: according to the scope of the hollowed-out area of ​​the base bed, the grouting amount of the underwater non-segregated concrete and the number of baffle units are obtained;

[0018] S5: Splice multiple baffle units, install the spliced ​​multiple baffle units on the caisson corresponding to the monitoring mechanism with abnormal data and span between the caisson and the base bed, insert the grouting pipe into the grouting hole, and the material conveying and hoisting assembly injects underwater non-segregated concrete into the repair cavity through the grouting pipe until the data monitored by the abnormal stress sensor returns to the preset threshold range.

[0019] According to some embodiments of the present invention, it also includes S6: when the base bed hollowed-out area is repaired, the construction log and technical documents of the base bed hollowed-out area are obtained, the status of the repaired area is checked according to the construction log and technical documents, and the monitoring parameters and repair strategies are optimized according to the actual operating status.

[0020] According to some embodiments of the present invention, in S3, analyzing the pressure change trend based on the monitoring data of the abnormal stress sensor includes: when the data measured by the stress sensor in the base bed hollowing area is lower than a preset threshold range, locking the position of the abnormal stress sensor; acquiring the monitoring data of the abnormal stress sensor; acquiring the monitoring data of the stress sensors around the abnormal stress sensor; deriving the pressure change trend based on the monitoring data of the abnormal stress sensor and the stress sensors around it; and acquiring the horizontal extension range of the base bed hollowing based on the pressure change trend.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0023] Figure 1 2 is a schematic structural diagram of a device for diagnosing and repairing hollowed-out prefabricated dock foundation according to an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 Structural diagram of the middle breast wall;

[0025] Figure 3 yes Figure 1 Structural schematic diagram of the caisson of the medium-sized prefabricated wharf;

[0026] Figure 4 yes Figure 3 Vertical section of the middle caisson;

[0027] Figure 5 yes Figure 3 Horizontal section of the front toe of the middle caisson;

[0028] Figure 6 yes Figure 1 Structural schematic diagram of the middle combined baffle;

[0029] Figure 7 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0030] Figure 8 yes Figure 1 Cross-sectional view in

[0031] Fig. 9 yes Figure 1 Schematic diagram of the structure of the middle material conveying hoisting assembly;

[0032] Fig.10 It is a flow chart of a method for diagnosing and repairing hollowed-out foundation bed of an assembled wharf according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] Monitoring mechanism 100, protection tube 110, stress sensor 120, shielding wire 130, signal transmitter 140;

[0035] Control center 200;

[0036] Combined baffle 300, repair cavity 310, baffle unit 320, grouting hole 321, anti-overflow rubber 322, connecting piece 330, limiting ring 331, limiting buckle 332, fixing piece 340;

[0037] Grouting mechanism 400, material conveying hoisting assembly 410, base 411, material conveying hopper 412, first hoisting member 413, second hoisting member 414, grouting pipe 420;

[0038] Solar power supply system 500;

[0039] The assembled wharf 10 , the caisson 11 , the front toe of the caisson 11 a , the breast wall 12 , and the foundation bed 20 . DETAILED DESCRIPTION

[0040] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0042] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0043] refer to Figures 1 to 9 The following describes a device and method for diagnosing and repairing hollowing of a prefabricated dock foundation according to an embodiment of the present invention.

[0044] like Figure 1 and Fig. 9As shown, the diagnostic and repair device for hollowing out the foundation bed of a prefabricated wharf according to the first embodiment of the present invention comprises: a plurality of monitoring mechanisms 100, a control center 200, a combined baffle 300 and a plurality of grouting mechanisms 400. Among them, the plurality of monitoring mechanisms 100 are all arranged in the prefabricated wharf 10, and the plurality of monitoring mechanisms 100 are evenly distributed along the length direction of the prefabricated wharf 10. The monitoring mechanisms 100 are used to monitor the stress data between different positions on the prefabricated wharf 10 and the foundation bed 20. The control center 200 is electrically connected to the monitoring mechanisms 100, and the control center 200 is used to record and analyze the data obtained by the monitoring mechanisms 100. The combined baffle 300 is arranged on the caisson 11 corresponding to the monitoring mechanism 100 with abnormal data, the combined baffle 300 is detachably connected to the caisson 11, the combined baffle 300 is detachably connected to the foundation bed 20, the combined baffle 300 is arranged between the caisson 11 and the foundation bed 20, and the combined baffle 300, the caisson 11 and the foundation bed 20 enclose a repair cavity 310. A plurality of grouting mechanisms 400 are detachably arranged on the breast wall 12 of the prefabricated wharf. The plurality of grouting mechanisms 400 are evenly distributed along the length direction of the prefabricated wharf 10. The plurality of grouting mechanisms 400 are detachably connected to the combined baffle 300. The grouting mechanisms 400 and the combined baffle 300 are connected. The grouting mechanisms 400 grout the repair cavity 310 to repair and reinforce the hollowed-out base bed 20 at the bottom of the prefabricated wharf 10.

[0045] The gravity dock is a dock structure consisting of a breast wall 12, a wall body, a foundation, backfill behind the wall and dock ancillary facilities, etc. It mainly relies on its own weight to maintain the anti-slip and anti-tilt stability of the structure. Among them, the wall body is generally formed by splicing a plurality of prefabricated caissons 11 in sequence, the caissons 11 stand on the foundation, and the breast wall 12 is set on the top of the caisson 11. The bottom of each caisson 11 is provided with a front toe, and the front toe structure protrudes from the surface of the caisson 11 to help keep the caisson 11 sunk to the seabed stable. It should be noted that the base bed 20 is a riprap base bed 20. In a harsh and complex hydrological environment, the riprap base bed 20 is easily affected by factors such as water flow scouring, wave impact and tugboat operation, resulting in the hollowing of the base bed 20. The hollowing of the base bed 20 will not only affect the safety, applicability and durability of the dock, but also cause problems such as cracks, structural damage, uneven settlement, etc., which may eventually lead to serious damage to the dock structure or even failure.

[0046] There are many reasons for the hollowing out of the base bed 20. The first is construction defects, such as improper stone grading resulting in too small a particle size of crushed stone that is easily carried away by the water flow, resulting in holes on the surface of the base bed 20. The second is the impact of water dredging. Excessive dredging of the water area in front of the dock changes the local water flow conditions, causing the base bed 20 to lose support and slide. The third is complex hydrological conditions. Under the combined action of waves and water flow, especially in high flow rate areas, the material of the base bed 20 is gradually lost. The fourth is the impact of ships. The high flow rate field generated when tugboats dock and leave will also accelerate the hollowing out process of the base bed 20.

[0047] At present, the method of post-repair is usually adopted to solve the hollowing problem of the base bed 20, such as detecting the damage through underwater exploration by divers, underwater video recording, etc., and repairing by throwing stones, lifting concrete, bagged concrete, etc. However, due to the lack of early warning mechanism in traditional methods, it is difficult to achieve real-time monitoring and early warning of the condition of the base bed 20, and preventive measures cannot be taken in time. Only when the damage reaches a certain extent and shows obvious signs, can the problem be discovered. At this time, it is often already caused. In a complex environment, especially an underwater environment, the repair work is difficult, costly and inefficient.

[0048] like Figure 1 As shown, multiple monitoring mechanisms 100 are arranged along the extension direction of the prefabricated wharf 10, and all monitoring mechanisms 100 are connected to the control center 200 to form a distributed sensor network. The combined baffle 300 is arranged between the caisson 11 and the base bed 20, and the caisson 11 and the base bed 20 are detachably connected to the combined baffle 300. When the base bed 20 is hollowed out, the combined baffle 300 is arranged between the caisson 11 and the base bed 20 to enclose and form a repair cavity 310. The grouting mechanism 400 arranged on the prefabricated wharf 10 extends from the breast wall 12 to the combined baffle 300, and is connected to the inside of the repair cavity 310 through the combined baffle 300. The pressure changes of the base bed 20 are monitored in real time by multiple monitoring mechanisms 100. After the specific hollowing position is accurately located, the grouting process is quickly started by the grouting mechanism 400 to accurately repair the hollowed-out part of the base bed 20 and restore the integrity of the base bed 20. In this way, abnormal conditions can be identified in the early stage of hollowing, and problems with the base bed 20 can be discovered and repaired in time, ensuring the structural stability and safety of the prefabricated wharf 10. This not only reduces diving operations, reduces the risks of seabed operations, and improves the efficiency and quality of repair work, but also reduces the frequency of large-scale repairs to the wharf through continuous monitoring of the health status of the base bed 20, reduces maintenance costs, and improves the digital operation and maintenance level of the wharf.

[0049] In some specific embodiments of the present invention, a solar power supply system 500 is further included. The solar power supply system 500 is arranged on the assembled dock 10. All monitoring mechanisms 100 are electrically connected to the solar power supply system 500. The solar power supply system 500 is electrically connected to the control center 200. The solar power supply system 500 is used to provide power to the monitoring mechanisms 100 and the control center 200. Figure 2As shown, the solar power supply system 500 includes a plurality of solar power supply modules, each monitoring mechanism 100 is equipped with a solar power supply module, and all solar power supply modules are installed on the breast wall 12 of the prefabricated dock 10 and connected to the control center 200. Therefore, the solar power supply system 500 provides reliable power support for monitoring and repairing the hollowing problem of the bed 20, and the entire system realizes self-sufficient power supply, while also reducing dependence on traditional power networks, and improving the reliability and sustainability of offshore operations.

[0050] In some specific embodiments of the present invention, the monitoring mechanism 100 includes: a protective tube 110, which is buried in the caisson 11 and located at the seaward end of the caisson 11; a stress sensor 120, which is arranged in the protective tube 110 and located at the bottom of the caisson 11, and is used to monitor the pressure change between the caisson 11 and the base bed 20; a shielding wire 130, which is arranged in the protective tube 110 and is electrically connected to the stress sensor 120, and is used to transmit signals to reduce the interference of external electromagnetic fields on the stress sensor 120; a collector and a signal transmitter 140, which are connected to the shielding wire 130 and the signal transmitter 140 are connected to the shielding wire 130, and are used to transmit the collected data to the control center 200.

[0051] like Figure 3 , Figure 4 and Figure 5 As shown, the protection tube 110 is buried in the caisson 11, the stress sensor 120 is arranged in the protection tube 110 and is located at one end of the caisson 11 close to the base bed 20, and the shielding wire 130 is arranged in the protection tube 110 to reduce the interference of the external electromagnetic field on the sensor. The stress sensor 120 and the shielding wire 130 are connected by a cable so that the stress sensor 120 can accurately capture the pressure change between the caisson 11 and the base bed 20. The collector is connected to the stress sensor 120 through a cable to receive the pressure data transmitted by the sensor, and process and record it. The signal transmitter 140 is connected to the collector through a cable to transmit the data collected by the collector to the control center 200.

[0052] It should be noted that before the caisson 11 is prefabricated, a pre-buried protective tube 110 is required inside the template of the caisson 11. The assembled caisson 11 is manufactured according to the design drawings. After the prefabrication, the stress sensor 120 and the shielding wire 130 are connected and the stress sensor 120 and the shielding wire 130 are placed in the protective tube 110. Then, the shielding wire 130 is connected to the collector and the signal transmitter 140. After the caisson 11 is installed, the stress sensor is brought into contact with the base bed 20, the collector and the signal transmitter 140 are configured, and a communication connection is established with the control center 200. Finally, the solar power supply system 500 is ensured to work normally to provide continuous power for the entire monitoring system.

[0053] Furthermore, the protection tube 110 extends downward from the top of the caisson 11 to the bottom of the caisson 11, then extends horizontally to the front toe 11a of the caisson, and extends along the length direction of the front toe 11a of the caisson. Correspondingly, a plurality of stress sensors 120 are provided, and the plurality of stress sensors 120 are evenly distributed in the protection tube 110 along the length direction of the front toe 11a of the caisson, thereby forming a distributed sensing network.

[0054] In some specific embodiments of the present invention, the combined baffle 300 includes a plurality of baffle units 320, which are sequentially spliced ​​along the extension direction of the prefabricated wharf, and two adjacent baffle units 320 are detachably connected, and each baffle unit 320 has a grouting hole 321, and each baffle unit 320 is detachably connected to the front toe 11a of the caisson through a connecting piece 330, and each baffle unit 320 is detachably connected to the base bed 20 through a fixing piece 340, and the baffle unit 320 is used to prevent grouting from overflowing.

[0055] like Figure 6 and Figure 7 As shown, a plurality of baffle units 320 are spliced ​​together to form a combined baffle 300, each baffle unit 320 is provided with a grouting hole 321, each baffle unit 320 is provided with a connecting member 330 and a fixing member 340, in this specific embodiment, the connecting member 330 is arranged at the top of the baffle unit 320, and the fixing member 340 is arranged at the bottom of the baffle unit 320, each baffle unit 320 is detachably connected to the front toe 11a of the caisson through the connecting member 330, and each baffle unit 320 is detachably connected to the base bed 20 through the fixing member 340.

[0056] Specifically, the connector 330 includes a limiting ring 331 and a limiting buckle 332 that can cooperate with the limiting ring 331. One of the limiting ring 331 and the limiting buckle 332 is arranged on the baffle unit 320, and the other is arranged on the front toe 11a of the caisson. In this specific embodiment, the limiting ring 331 is arranged on the baffle unit 320, and the limiting buckle 332 is arranged on the front toe 11a of the caisson. Specifically, a plurality of limiting buckles 332 are arranged on the front toe 11a of the caisson, and the plurality of limiting buckles 332 are evenly distributed along the extension direction of the assembled wharf 10. Therefore, through the design of the limiting ring 331 and the limiting buckle 332, the baffle unit 320 can be accurately connected with the front toe 11a of the caisson. No matter where the hollowed-out area is in the prefabricated wharf 10, the baffle unit 320 can be flexibly adjusted and arranged according to needs, and it is ensured that the spliced ​​baffle unit 320 can be accurately placed in the designated position, which is convenient for installation, maintenance and replacement, and adapts to different repair needs and on-site conditions. While reducing maintenance costs and operating difficulties, the stability and reliability of the overall structure are improved.

[0057] Specifically, the fixing parts 340 are a plurality of sharp nails arranged along the length direction of the baffle unit 320. During the installation process, it is only necessary to insert the sharp nails into the base bed 20 to firmly fix each baffle unit 320 on the base bed 20, which simplifies the installation process, reduces the technical requirements and time cost of installation, and improves the stability of the overall structure.

[0058] Reliability: The spikes as the fixing members 340 have strong tensile strength and compressive strength, and can reliably fix the baffle unit 320 to ensure that it will not fall off or shift during use.

[0059] In some specific embodiments of the present invention, the grouting mechanism 400 includes: a material conveying and hoisting assembly 410, which is detachably arranged on the breast wall 12 of the prefabricated wharf 10, and the material conveying and hoisting assembly 410 is used for conveying grouting materials and handling engineering; a grouting pipe 420, one end of the grouting pipe 420 is connected to the material conveying and hoisting assembly 410, and the other end of the grouting pipe 420 is connected to the repair cavity 310 through the grouting hole 321, and the material conveying and hoisting assembly 410 adjusts the position of the grouting pipe 420 so that the output end of the grouting pipe 420 is aligned with the grouting hole 321, and the grouting pipe 420 injects the grouting material into the repair cavity 310.

[0060] In some specific embodiments of the present invention, the material conveying and hoisting assembly 410 includes: a base 411, which is detachably arranged on the breast wall 12; a material conveying hopper 412, which is arranged on the base 411, and the output end of the material conveying hopper 412 is connected to the input end of the grouting pipe 420, and the material conveying hopper 412 is used to store grouting materials; a first hoisting component 413, which is connected to the material conveying hopper 412, and the first hoisting component 413 is connected to the grouting pipe 420, and the first hoisting component 413 is used to limit the position of the grouting pipe 420 in the horizontal direction; a second hoisting component 414, which is arranged on the base 411, and the second hoisting component 414 is connected to the first hoisting component 413, and the second hoisting component 414 is used to limit the position of the material conveying hopper 412 and the first hoisting component 413 in the vertical direction.

[0061] like Figure 8 and Fig. 9 As shown, the material conveying and hoisting assembly 410 is detachably arranged on the breast wall 12 of the assembled wharf 10, one end of the grouting pipe 420 is connected to the material conveying and hoisting assembly 410, and the other end is connected to the repair cavity 310 through the grouting hole 321. When the combined baffle 300 is installed to the hollowed-out area corresponding to the base bed 20, the material conveying and hoisting assembly 410 adjusts the position of the grouting pipe 420 so that its output end is aligned with the grouting hole 321, and then the grouting material is conveyed and injected into the repair cavity 310 through the grouting pipe 420 to complete the grouting operation. Specifically, the feed hopper 412, the first hoisting component 413 and the second hoisting component 414 are rolled up on the base 411. After being accurately positioned at the specific hollowing position and the installation of the combined baffle 300 is completed, the base 411 is set at the corresponding position on the breast wall 12, and the length of the first hoisting machine and the height of the second hoisting machine are adjusted to align the output end of the grouting pipe 420 with the grouting hole 321 on the corresponding baffle unit 320. The grouting pipe 420 is inserted into the grouting hole 321, and then grouting is performed into the repair cavity 310 to repair the damaged area. This can greatly improve the repair efficiency and ensure that the repair material can effectively play a role in the repair cavity 310. In addition, through the synergistic effect of the feed hoisting assembly 410, the grouting pipe 420 and the combined baffle 300, diving operations are reduced, the risk of seabed operations is reduced, and a lot of labor costs are saved.

[0062] Specifically, each grouting hole 321 is provided with an anti-overflow rubber 322, which can effectively prevent the material from overflowing during the grouting process, ensuring that the grouting material only flows into the repair cavity 310, avoiding waste and pollution.

[0063] like Fig.10 As shown, according to the second aspect of the present invention, the diagnosis and repair method of the hollowing out of the prefabricated dock foundation bed comprises:

[0064] S1: obtaining initial data of the stress sensor 120 after the caisson 11 contacts the bed 20, and storing the initial data as a reference value in the control center 200;

[0065] S2: Acquire real-time data from the stress sensor 120, analyze the pressure change trend according to the initial data and the real-time data, and preset a threshold range according to the pressure change trend;

[0066] S3: obtaining the position of the abnormal stress sensor 120 according to the preset threshold range, analyzing the pressure change trend of the base bed 20 according to the monitoring data of the abnormal stress sensor 120, and obtaining the range of the base bed hollowing area according to the pressure change trend of the base bed 20;

[0067] S4: according to the range of the hollowed-out area of ​​the base bed, obtaining the grouting amount of the underwater non-segregating concrete and the number of the baffle units 320;

[0068] S5: Splice a plurality of baffle units 320, install the spliced ​​baffle units 320 onto the caisson 11 corresponding to the monitoring mechanism 100 with abnormal data and span between the caisson 11 and the base bed 20, insert the grouting pipe 420 into the grouting hole 321, and the material conveying and hoisting assembly 410 injects underwater non-segregated concrete into the repair cavity 310 through the grouting pipe 420 until the data monitored by the abnormal stress sensor 120 returns to the preset threshold range.

[0069] In some specific embodiments of the present invention, it also includes S6: when the base bed hollowed-out area is repaired, the construction log and technical documents of the base bed hollowed-out area are obtained, the status of the repaired area is checked according to the construction log and technical documents, and the monitoring parameters and repair strategies are optimized according to the actual operating status.

[0070] In some specific embodiments of the present invention, in S3, analyzing the pressure change trend based on the monitoring data of the abnormal stress sensor 120 includes: when the data measured by the stress sensor 120 in the base bed hollowing area is lower than a preset threshold range, locking the position of the abnormal stress sensor 120, acquiring the monitoring data of the abnormal stress sensor 120, acquiring the monitoring data of the stress sensors 120 around the abnormal stress sensor 120, and deriving the pressure change trend based on the monitoring data of the abnormal stress sensor 120 and the stress sensors 120 around it, and acquiring the extension range of the hollowing of the base bed 20 in the horizontal direction based on the pressure change trend.

[0071] The following is a specific implementation to illustrate the diagnosis and repair method of the hollowed-out foundation bed of the prefabricated wharf.

[0072] Before the caisson 11 is prefabricated, the number and distribution of the limit buckles 332 are adjusted according to the size of the caisson 11 in the embedded protection tube 110 inside the template of the caisson 11. The assembled caisson 11 is manufactured according to the design drawings. After the prefabrication is completed, the stress sensor 120 and the shielding wire 130 are connected and the stress sensor 120 and the shielding wire 130 are placed in the protection tube 110, and then the shielding wire 130 is connected to the collector and the signal transmitter 140. After the caisson 11 is installed, the stress sensor is brought into contact with the base bed 20, the collector and the signal transmitter 140 are configured, and a communication connection is established with the control center 200. Finally, the solar power supply system 500 is ensured to work normally to provide continuous power for the entire monitoring system.

[0073] When the caisson 11 is fully in place and in contact with the base bed 20, the initial data of each stress sensor 120 after the caisson 11 is in contact with the base bed 20 is obtained, and the initial data is stored in the control center 200 as a reference value. The computer continuously receives real-time data from each stress sensor 120, analyzes the pressure change trend based on the initial data and real-time data, and presets a threshold range based on the pressure change trend. It should be noted that once the reading of the stress sensor 120 at a certain position on the prefabricated wharf 10 drops significantly, the early warning mechanism is triggered, indicating that the base bed 20 may be hollowed out.

[0074] When the data measured by stress sensor a is lower than the preset threshold range, the position of abnormal stress sensor a is locked to the base bed A, and the monitoring data of stress sensor a is obtained, and the monitoring data of stress sensor b and stress sensor c around stress sensor a are obtained. It should be noted that stress sensor a is located between stress sensor b and stress sensor c. Since only the real-time data of stress sensor a is lower than the preset threshold range, it is analyzed that the maximum extension range of the base bed hollowing area in the horizontal direction is from stress sensor b to stress sensor c. The number of baffle units 320 required is calculated based on the distance between stress sensor b and stress sensor c, and the grouting amount is calculated based on the distance between stress sensor b and stress sensor c and the size of the front toe 11a of the caisson.

[0075] Splice multiple baffle units 320, and use the conveying and hoisting assembly to hoist the multiple baffle units 320 that have been spliced ​​to between the front toe 11a of the caisson and the base bed 20, buckle the limit ring 331 on each baffle unit 320 onto the corresponding limit buckle 332 on the front toe 11a of the caisson, use the first hoisting component 413 and the second hoisting component 414 to align the output end of the grouting pipe 420 with the grouting hole 321, and then insert the output end of the grouting pipe 420 into the grouting hole 321, and the conveying and hoisting component 410 injects underwater non-segregated concrete into the repair cavity 310 through the grouting pipe 420 until the data monitored by the abnormal stress sensor 120 recovers to the preset threshold range.

[0076] It should be noted that a corresponding number of grouting mechanisms 400 are provided according to the size of the hollowed-out area of ​​the base bed 20 to ensure the economy of the repair project while achieving rapid repair of the hollowed-out area of ​​the base bed.

[0077] When the hollowed-out area of ​​the bed is repaired, the construction log and technical documents of the hollowed-out area are obtained, and the status of the repaired area is checked according to the construction log and technical documents. According to the actual operating status, the monitoring parameters and repair strategies are optimized. This provides scientific and effective guidance to users. At the same time, through continuous monitoring of the health status of the bed 20, the frequency of large-scale maintenance of the terminal can be reduced, maintenance costs can be reduced, and the digital operation and maintenance level of the terminal can be improved.

[0078] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A diagnostic and repair device for hollowing out of a prefabricated dock bed, characterized in that: include: A plurality of monitoring mechanisms (100), wherein the plurality of monitoring mechanisms (100) are all arranged in the assembled wharf (10), and the plurality of monitoring mechanisms (100) are evenly distributed along the length direction of the assembled wharf (10), and the monitoring mechanisms (100) are used to monitor stress data between different positions on the assembled wharf (10) and the base bed (20); A control center (200), the control center (200) being electrically connected to the monitoring mechanism (100), the control center (200) being used to record and analyze data acquired by the monitoring mechanism (100); A combined baffle (300), the combined baffle (300) being arranged on a caisson (11) corresponding to the monitoring mechanism (100) with abnormal data, the combined baffle (300) being detachably connected to the caisson (11), the combined baffle (300) being detachably connected to the base bed (20), the combined baffle (300) being arranged across the caisson (11) and the base bed (20), the combined baffle (300), the caisson (11) and the base bed (20) enclosing a repair cavity (310); A plurality of grouting mechanisms (400) are detachably arranged on the breast wall (12) of the assembled wharf, the plurality of grouting mechanisms (400) are evenly distributed along the extension direction of the assembled wharf (10), and the plurality of grouting mechanisms (400) are detachably connected to the combined baffle (300). The grouting mechanisms (400) and the combined baffle (300) are connected so that the output end of the grouting mechanism (400) is communicated with the repair cavity (310), thereby repairing and reinforcing the hollowed-out base bed (20) at the bottom of the assembled wharf (10) through grouting filling.

2. The diagnostic and repair device for hollowing out of the prefabricated dock bed according to claim 1 is characterized in that: It also includes a solar power supply system (500), which is arranged on the assembled wharf (10), all the monitoring mechanisms (100) are electrically connected to the solar power supply system (500), the solar power supply system (500) is electrically connected to the control center (200), and the solar power supply system (500) is used to provide power to the monitoring mechanisms (100) and the control center (200).

3. The diagnostic and repair device for hollowing out of the prefabricated dock foundation according to claim 1 is characterized in that: The monitoring mechanism (100) comprises: A protection pipe (110), wherein the protection pipe (110) is buried in the caisson (11), and the protection pipe (110) is located at an end of the caisson (11) close to the sea; A stress sensor (120), the stress sensor (120) being arranged in the protection tube (110), the stress sensor (120) being located at the bottom of the caisson (11), and the stress sensor (120) being used to monitor pressure changes between the caisson (11) and the bed (20); a shielding wire (130), the shielding wire (130) being arranged in the protection tube (110), the shielding wire (130) being electrically connected to the stress sensor (120), and the shielding wire (130) being used to transmit signals and reduce interference of an external electromagnetic field on the stress sensor (120); A data collector and a signal transmitter (140), wherein the data collector is connected to the shielded wire (130), and the signal transmitter (140) is connected to the shielded wire (130), and the data collector and the signal transmitter (140) are used to transmit the collected data to the control center (200).

4. The diagnostic and repair device for hollowing out of the prefabricated dock foundation according to claim 1 is characterized in that: The combined baffle (300) comprises a plurality of baffle units (320), the plurality of baffle units (320) being sequentially spliced ​​along the extension direction of the assembled wharf, two adjacent baffle units (320) being detachably connected, each baffle unit (320) being provided with a grouting hole (321), each baffle unit (320) being detachably connected to the front toe (11a) of the caisson via a connecting piece (330), each baffle unit (320) being detachably connected to the base bed (20) via a fixing piece (340), and the baffle unit (320) being used to prevent grouting from overflowing.

5. The diagnostic and repair device for hollowing out of the prefabricated dock foundation according to claim 4 is characterized in that: The connecting member (330) comprises a limiting ring (331) and a limiting buckle (332) that can cooperate with the limiting ring (331); one of the limiting ring (331) and the limiting buckle (332) is arranged on the baffle unit (320), and the other is arranged on the front toe (11a) of the caisson.

6. The diagnostic and repair device for hollowing out of the prefabricated dock foundation according to claim 4 is characterized in that: The grouting mechanism (400) comprises: A material conveying and hoisting assembly (410), wherein the material conveying and hoisting assembly (410) is detachably arranged on the breast wall (12) of the assembled wharf (10), and the material conveying and hoisting assembly (410) is used for conveying grouting materials and handling engineering; A grouting pipe (420), one end of which is connected to the material conveying and hoisting assembly (410), and the other end of which is connected to the repair cavity (310) through the grouting hole (321). The material conveying and hoisting assembly (410) adjusts the position of the grouting pipe (420) so that the output end of the grouting pipe (420) is aligned with the grouting hole (321), and the grouting pipe (420) injects grouting material into the repair cavity (310).

7. The diagnostic and repair device for hollowing out of the prefabricated dock foundation according to claim 6 is characterized in that: The material conveying and hoisting assembly (410) comprises: A base (411), wherein the base (411) is detachably arranged on the breast wall (12); A material conveying hopper (412), wherein the material conveying hopper (412) is disposed on the base (411), an output end of the material conveying hopper (412) is connected to an input end of the grouting pipe (420), and the material conveying hopper (412) is used to store grouting materials; A first hanging member (413), the first hanging member (413) is connected to the grouting pipe (420), and the first hanging member (413) is used to limit the position of the grouting pipe (420) in the horizontal direction; A second hanging member (414), wherein the second hanging member (414) is disposed on the base (411), the second hanging member (414) is connected to the first hanging member (413), and the second hanging member (414) is used to limit the position of the first hanging member (413) in the vertical direction.

8. A method for diagnosing and repairing hollowed-out foundation bed of an assembled dock, characterized in that: The diagnostic and repair device for hollowing out the prefabricated dock foundation bed as claimed in claim 6 comprises: S1: acquiring initial data of the stress sensor (120) after the caisson (11) contacts the bed (20), and storing the initial data as a reference value in the control center (200); S2: acquiring real-time data of the stress sensor (120), analyzing a pressure change trend according to the initial data and the real-time data, and presetting a threshold range according to the pressure change trend; S3: obtaining the position of the abnormal stress sensor (120) according to the preset threshold range, analyzing the pressure change trend of the base bed (20) according to the monitoring data of the abnormal stress sensor (120), and obtaining the range of the base bed hollowing area according to the pressure change trend of the base bed (20); S4: according to the range of the hollowed-out area of ​​the base bed, obtaining the grouting amount of the underwater non-segregating concrete and the number of the baffle units (320); S5: Splicing a plurality of the baffle units (320), installing the spliced ​​plurality of the baffle units (320) on the caisson (11) corresponding to the monitoring mechanism (100) with abnormal data and making them span between the caisson (11) and the base bed (20), inserting the grouting pipe (420) into the grouting hole (321), and injecting underwater non-segregating concrete into the repair cavity (310) through the grouting pipe (420) by the material conveying and hoisting assembly (410), until the data monitored by the abnormal stress sensor (120) is restored to the preset threshold range.

9. The diagnostic and repair method for hollowing out of the prefabricated dock foundation according to claim 8, characterized in that: It also includes S6: when the base bed hollowed-out area is repaired, the construction log and technical documents of the base bed hollowed-out area are obtained, the status of the repaired area is checked according to the construction log and the technical documents, and the monitoring parameters and repair strategies are optimized according to the actual operating status.

10. The method for diagnosing and repairing hollowed-out foundation of a prefabricated dock according to claim 8, characterized in that: In S3, analyzing the pressure change trend according to the monitoring data of the abnormal stress sensor (120) includes: When the data measured by the stress sensor (120) in the hollowed-out area of ​​the bed is lower than the preset threshold range, locking the position of the abnormal stress sensor (120); Acquiring monitoring data of the abnormal stress sensor (120); Acquiring monitoring data of the stress sensors (120) around the abnormal stress sensor (120); Analyzing monitoring data of the abnormal stress sensor (120) and the stress sensors (120) in its periphery to obtain a pressure change trend; According to the pressure variation trend, the extension range of the hollowing out of the base bed (20) in the horizontal direction is obtained.

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