Dynamic monitoring device for deviation rectification of bridge pier

Abstract

The utility model discloses a pier deviation rectification dynamic monitoring device which comprises an upper support plate and a lower support plate, an upper angle sensor is arranged at the bottom of the upper support plate, and a lower angle sensor is arranged on the upper portion of the lower support plate. A connecting sliding plate is arranged between an upper support plate and a lower support plate, so that the upper support plate and the lower support plate form a relatively independent structure, then displacement, deflection and inclination of the upper support plate and the lower support plate of the bridge support are monitored in real time through an upper angle sensor and a lower angle sensor respectively, and then the deviation correction degree of a bridge pier is monitored; the structure is simple, and real-time state monitoring of the bridge pier in the daily use process and the deviation rectifying process can be achieved. Displacement, deflection and inclination of the upper support plate and the lower support plate of the bridge support are monitored in real time, and then the deviation correction degree of the bridge pier is monitored.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge engineering, and in particular relates to a pier deviation correction dynamic monitoring device. Background Art

[0002] In recent years, with the rapid development of my country's social economy and transportation construction, my country's highway engineering, bridge engineering and other infrastructure construction has developed rapidly. Affected by geological disasters and deviations and errors in construction, bridges are prone to serious defects such as pier bending and offset. For example, factors such as heavy rainfall and damage to drainage channels cause the water content of the abutment fill to increase, causing the soil to slide toward the piers. The piers are subject to active soil pressure, which leads to problems such as bending and offset of the piers. After the piers are offset, the bearing capacity of the piers still exists, and the cost of rebuilding the piers is too high. Most of them use correction devices to return the piers to their original positions. Therefore, how to accurately judge whether the bridge correction has returned to its original position, and thus judge the end of the correction, is a major problem that needs to be solved.

[0003] In actual engineering, the general method of correcting the deviation of bridge piers is traction correction, which usually requires one or several pulling cables to pull the bridge piers so that the bridge piers can gradually return to their normal use position. However, in this process, whether it is manual pulling or machine pulling, it is always difficult to control the accuracy of load, displacement and deflection, and it is difficult to meet the correction requirements. At the same time, when the displacement deviation on both sides of the pier is large, it will generate torque on the pier, causing it to twist, which will cause secondary damage to the pier and pile foundation and affect its life. Therefore, there is an urgent need for a temporary support for dynamic monitoring during pier correction to solve the above problems, which can monitor the displacement and inclination of the pier in real time during the construction process to ensure construction efficiency and the safety and stability of the bridge. Utility Model Content

[0004] The purpose of the utility model is to provide a dynamic monitoring device for bridge pier correction, so as to overcome the problem that the control accuracy of load, displacement and deflection in the prior art during the correction process is low and it is difficult to meet the correction accuracy requirements. The utility model can accurately obtain the displacement data of the bridge pier during the correction process, and provide a new idea for improving the actual effect of the bridge pier correction.

[0005] A dynamic monitoring device for pier deviation correction includes an upper bearing plate and a lower bearing plate, the lower bearing plate is fixed on a supporting cushion stone, the supporting cushion stone is fixed on the pier, the upper bearing plate is used to be fixedly connected to a bridge connecting part on the pier to be corrected, a connecting slide plate is arranged between the upper bearing plate and the lower bearing plate, an upper angle sensor is arranged at the bottom of the upper bearing plate, and a lower angle sensor is arranged at the upper part of the lower bearing plate.

[0006] Preferably, the connecting slide plate includes an upper slide plate and a lower slide plate, a lining plate is arranged between the upper slide plate and the lower slide plate, the upper end of the upper slide plate is fitted with the bottom of the upper support plate, and the lower end of the lower slide plate is fitted with the upper end of the lower support plate.

[0007] Preferably, the upper slide plate adopts a planar structure, the lower slide plate adopts a spherical structure, and the two sides of the lining plate are respectively fitted with the surfaces of the upper slide plate and the lower slide plate.

[0008] Preferably, a rubber dustproof retaining ring is provided between the upper support plate and the lower support plate, and the rubber dustproof retaining ring is located at the outer ring of the connecting slide plate.

[0009] Preferably, both the upper slide plate and the lower slide plate are made of polytetrafluoroethylene.

[0010] Preferably, the upper bearing plate is fixed to the bottom of the bridge connection portion on the pier to be corrected by upper anchor bolts.

[0011] Preferably, the lower bearing plate is fixed to the supporting pad stone by lower anchor bolts.

[0012] Preferably, the lower anchor bolts are pre-buried or fixed by drilling later.

[0013] Preferably, a shift indicating device is provided on one side of the supporting stone position, and the shift indicating device is connected to the upper angle sensor and the lower angle sensor.

[0014] Preferably, the upper angle sensor and the lower angle sensor are arranged on both sides of the upper support plate and the lower support plate along the longitudinal direction of the bridge.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] The utility model provides a pier correction dynamic monitoring device, comprising an upper bearing plate and a lower bearing plate, the lower bearing plate is fixed on a supporting cushion stone, the supporting cushion stone is fixed on the pier, the upper bearing plate is used to be fixedly connected with a bridge connecting part on the pier to be corrected, a connecting slide plate is arranged between the upper bearing plate and the lower bearing plate, an upper angle sensor is arranged at the bottom of the upper bearing plate, and a lower angle sensor is arranged at the upper part of the lower bearing plate, the upper angle sensor is used to monitor the angle data of the deflection and inclination of the bridge, and the lower bearing plate is used to monitor the deflection and inclination data of the pier, the application adopts the structural design of the upper bearing plate and the lower bearing plate, and arranges a connecting slide plate between the upper bearing plate and the lower bearing plate, so that the upper bearing plate and the lower bearing plate form a relatively independent structure, and then uses the upper angle sensor and the lower angle sensor to respectively monitor the displacement, deflection and inclination of the upper bearing plate and the lower bearing plate of the bridge bearing in real time, so as to achieve the monitoring of the correction degree of the pier; the structure is simple, and can realize the real-time status monitoring of the bridge pier during daily use and the correction process. By real-time monitoring of the displacement, deflection and inclination of the upper and lower bearing plates of the bridge bearings, the degree of correction of the bridge piers can be monitored. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a bridge deviation correction support in an embodiment of the utility model;

[0018] Figure 2 This is a side view of a bridge deviation correction support in an embodiment of the utility model;

[0019] Figure 3 It is a top view of the bridge correction bearing in the embodiment of the utility model.

[0020] In the figure, 1-upper anchor rod part, 2-upper sleeve, 3-embedded steel plate, 4-upper anchor bolt, 5-support body, 6-upper angle sensor, 7-lower angle sensor, 8-lower anchor bolt, 9-lower sleeve, 10-lower anchor rod part, 11-flat polytetrafluoroethylene slide plate, 12-upper support plate, 13-rubber dustproof retaining ring, 14-spherical crown lining, 15-spherical polytetrafluoroethylene slide plate, 16-lower support plate, 17-support pad stone, 18-displacement indicating device, 19-reserved bolt hole. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] like Figures 1 to 3 As shown, the utility model provides a dynamic monitoring device for pier deviation correction, which monitors the displacement, deflection and inclination of the upper bearing plate and the lower bearing plate of the bridge bearing in real time, thereby achieving the monitoring of the deviation correction degree of the pier; specifically, it includes an upper bearing plate 12 and a lower bearing plate 16, the lower bearing plate 16 is fixed on a supporting cushion stone 17, the supporting cushion stone 17 is fixed on the pier, the upper bearing plate 12 is used to be fixedly connected with the bridge connecting part on the pier to be corrected, a connecting slide plate is arranged between the upper bearing plate 12 and the lower bearing plate 16, an upper angle sensor 6 is arranged at the bottom of the upper bearing plate 12, and a lower angle sensor 7 is arranged at the upper part of the lower bearing plate 16. 6 is used to monitor the angle data of the deflection and inclination of the bridge, and the lower bearing plate 16 is used to monitor the deflection and inclination data of the bridge pier. This application adopts the structural design of the upper bearing plate 12 and the lower bearing plate 16, and sets a connecting slide plate between the upper bearing plate 12 and the lower bearing plate 16, so that the upper bearing plate 12 and the lower bearing plate 16 form a relatively independent structure, and then uses the upper angle sensor 6 and the lower angle sensor 7 to respectively monitor the displacement, deflection and inclination of the upper bearing plate and the lower bearing plate of the bridge bearing in real time, so as to monitor the degree of correction of the bridge pier; the structure is simple, and can realize real-time status monitoring of the bridge pier during daily use and during the correction process. When initially fixed and installed, the upper angle sensor 6 and the lower angle sensor 7 are located on the same numerical straight line.

[0024] The connecting slide plate includes an upper slide plate 11 and a lower slide plate 15, and a lining plate 14 is arranged between the upper slide plate 11 and the lower slide plate 15. The upper end of the upper slide plate 11 fits with the bottom of the upper support plate 12, and the lower end of the lower slide plate 15 fits with the upper end of the lower support plate 16. By utilizing the structure of the upper slide plate 11 and the lower slide plate 15, the lining plate 14 is arranged between the upper slide plate 11 and the lower slide plate 15, which can ensure that the upper support plate 12 and the lower support plate 16 can remain relatively stable during the initial installation process; at the same time, when the bridge and the pier move relative to each other during use, rigid contact between the upper support plate 12 and the lower support plate 16 is avoided; and a relative sliding gap is provided between the upper support plate 12 and the lower support plate 16 by utilizing the connecting slide plate.

[0025] like Figure 1 and Figure 2 As shown, the upper angle sensor 6 and the lower angle sensor 7 are arranged on both sides of the upper support plate 12 and the lower support plate 16 along the longitudinal direction of the bridge.

[0026] The upper slide plate 11 adopts a planar structure, and the lower slide plate 15 adopts a spherical structure. The two sides of the lining plate 14 are respectively fitted with the surfaces of the upper slide plate 11 and the lower slide plate 15, that is, one side of the lining plate 14 is a planar structure, and the other side of the lining plate 14 is a spherical structure, that is, the lining plate 14 adopts a spherical crown structure, and the lower slide plate 15 with a spherical structure cooperates with the lining plate 14. The lower slide plate 15 and the lining plate 14 rub against each other to ensure flexible steering. When the upper support plate 12 and the lower support plate 16 are relatively displaced, relative torsion can be generated to avoid extrusion stress between the upper support plate 12 and the lower support plate 16, thereby ensuring the stable operation of the monitoring device.

[0027] A rubber dustproof retaining ring 13 is provided between the upper support plate 12 and the lower support plate 16 , and the rubber dustproof retaining ring 13 is located at the outer ring of the connecting slide plate.

[0028] The upper slide plate 11 and the lower slide plate 15 are both made of PTFE slide plates. When in use, silicone grease is made into an oil storage pit and applied to the surfaces of the upper slide plate 11 and the lower slide plate 15 to reduce friction during sliding and reduce the loss caused by sliding.

[0029] The upper support plate 12 is fixed to the bottom of the bridge connection part on the pier to be corrected by the upper anchor bolts 4, or the upper anchor bolts 4 are pre-buried in the bridge connection part on the pier to be corrected. During installation, holes are opened in the upper support plate 12 and then fixed with nuts.

[0030] In one embodiment of the present application, the upper support plate 12 is fixed to the bottom of the bridge connection part 5 on the pier to be corrected by expansion bolts, the upper sleeve 2 of the expansion bolt is pre-buried in the bridge connection part 5 on the pier to be corrected, the upper anchor bolt 4 is passed through the opening of the upper support plate 12 and connected to the upper sleeve 2, and the upper anchor rod part at the end of the upper anchor bolt 4 is threadedly connected to the upper sleeve 2, thereby achieving the purpose of fastening and installation.

[0031] Similarly, the lower bearing plate 16 is fixed to the supporting cushion stone 17 by the lower anchor bolt 8, and the lower anchor bolt 8 is fixed by pre-embedded or later punching; the pre-embedded structure is adopted, and the rod body of the lower anchor bolt 8 is partially embedded in the supporting cushion stone 17, and the bolt part is exposed at the upper end, and the nuts are used for fixing. The later punching structure is adopted, and the supporting cushion stone 17 is punched or the bolt hole 19 is reserved, and the lower sleeve 9 is placed in the bolt hole 19 of the pier, and then the lower anchor rod part 10 of the lower anchor bolt 8 is fastened and connected with the lower sleeve 9 in the bolt hole 19, and the lower sleeve 9 adopts the expansion bolt sleeve structure.

[0032] A shift indicating device 18 is provided on one side of the supporting stone position 17 . The shift indicating device 18 is connected to the upper angle sensor 6 and the lower angle sensor 7 and is used to display the data of the upper angle sensor 6 and the lower angle sensor 7 in real time.

[0033] The hole depth of the bolt hole 19 reserved on the supporting pad stone 17 is greater than the length of the lower sleeve 9 by 60 mm.

[0034] During installation, clean and rinse the top surface of the support stone 17 and remove the accumulated water, and then remove the impurities in the bolt hole 19. In order to accurately control the elevation of the installed support, before pouring the mortar, accurately determine the center line position of the support, the four-point elevation of the bottom surface, and the axis position of the upper and lower components. After placing the sample position, hoist the lower support plate support body into place in turn. When hoisting, pay attention to protecting the support paint.

[0035] After the support is installed, turn on the upper angle sensor 6 and the lower angle sensor 7 for preliminary calibration; and obtain the data of the upper angle sensor 6 and the lower angle sensor 7 in real time through the wireless connection device. The deflection and inclination of the bridge can be obtained through the data of the upper angle sensor 6, and the deflection and inclination of the bridge pier can be simulated through the data of the lower angle sensor 7. Set the threshold of deflection and inclination. When the value monitored by the sensor exceeds the set threshold, the device will automatically wake up and upload the alarm information as soon as possible.

Claims

1. A dynamic monitoring device for pier deviation correction, characterized in that: The invention comprises an upper support plate (12) and a lower support plate (16), wherein the lower support plate (16) is fixed on a supporting cushion stone (17), and the supporting cushion stone (17) is fixed on a bridge pier, and the upper support plate (12) is used for being fixedly connected to a bridge connection part on a bridge pier to be corrected, and a connecting slide plate is arranged between the upper support plate (12) and the lower support plate (16), and an upper angle sensor (6) is arranged at the bottom of the upper support plate (12), and a lower angle sensor (7) is arranged at the upper part of the lower support plate (16).

2. A pier deviation correction dynamic monitoring device according to claim 1, characterized in that: The connecting slide plate comprises an upper slide plate (11) and a lower slide plate (15), a lining plate (14) is arranged between the upper slide plate (11) and the lower slide plate (15), the upper end of the upper slide plate (11) is in contact with the bottom of the upper support plate (12), and the lower end of the lower slide plate (15) is in contact with the upper end of the lower support plate (16).

3. A pier deviation correction dynamic monitoring device according to claim 2, characterized in that: The upper slide plate (11) adopts a plane structure, the lower slide plate (15) adopts a spherical structure, and the two sides of the lining plate (14) are respectively fitted with the surfaces of the upper slide plate (11) and the lower slide plate (15).

4. The pier deviation correction dynamic monitoring device according to claim 1 is characterized in that: A rubber dustproof retaining ring (13) is arranged between the upper support plate (12) and the lower support plate (16), and the rubber dustproof retaining ring (13) is located on the outer ring of the connecting slide plate.

5. The pier deviation correction dynamic monitoring device according to claim 2 is characterized in that: The upper slide plate (11) and the lower slide plate (15) are both made of polytetrafluoroethylene.

6. The bridge pier deviation correction dynamic monitoring device according to claim 1 is characterized in that: The upper support plate (12) is fixed to the bottom of the bridge connection portion on the bridge pier to be corrected by means of upper anchor bolts (4).

7. The pier deviation correction dynamic monitoring device according to claim 1 is characterized in that: The lower support plate (16) is fixed on the supporting cushion stone (17) by means of lower anchor bolts (8).

8. The pier deviation correction dynamic monitoring device according to claim 7 is characterized in that: The lower anchor bolt (8) is pre-buried or fixed by drilling holes later.

9. The pier deviation correction dynamic monitoring device according to claim 1 is characterized in that: A shift indicating device (18) is provided on one side of the supporting cushion stone (17), and the shift indicating device (18) is connected to the upper angle sensor (6) and the lower angle sensor (7).

10. The pier deviation correction dynamic monitoring device according to claim 1 is characterized in that: An upper angle sensor (6) and a lower angle sensor (7) are arranged on both sides of an upper support plate (12) and a lower support plate (16) along the longitudinal direction of the bridge.

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