CN210741449U - Underpass railway bridge deformation monitoring system - Google Patents
Underpass railway bridge deformation monitoring system Download PDFInfo
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- CN210741449U CN210741449U CN201921061286.9U CN201921061286U CN210741449U CN 210741449 U CN210741449 U CN 210741449U CN 201921061286 U CN201921061286 U CN 201921061286U CN 210741449 U CN210741449 U CN 210741449U
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Abstract
The embodiment of the utility model provides a wear railway bridge deformation monitoring system down, the system includes: the device comprises a satellite positioning component, a monitoring component, a conversion component, a measurement component and control equipment; the satellite positioning assembly is used for obtaining a first elevation value of the measurement datum point relative to the standard datum point based on received satellite signals, and sending the first elevation value to the control equipment through the transmission bus; the monitoring assembly comprises a first metering device and a second metering device, wherein the first metering device is used for obtaining a first elevation difference value and sending the first elevation value to the control equipment through the transmission bus; the conversion assembly comprises a second metering device and is used for obtaining a second elevation difference value and sending the second elevation difference value to the control equipment through the transmission bus; the measuring assembly comprises a third measuring device used for obtaining a third elevation difference value and sending the third elevation difference value to the control equipment through the transmission bus.
Description
Technical Field
The utility model relates to a geotechnical engineering detects technical field, especially relates to a wear railway bridge deformation monitoring system down.
Background
The underpass engineering construction easily influences the safety of the railway bridge structure and the operation safety, and the whole process monitoring is needed to be carried out on the deformation of the bridge structure so as to carry out dynamic monitoring and evaluation and guide the site construction in real time. The traditional railway bridge settlement and inclination monitoring method is characterized in that an optical instrument is manually used, a level, a theodolite, a total station and the like are adopted, the deformation relative to a datum point (generally, the distance from the datum point to a bridge is only about 200m) close to the bridge is measured by referring to the datum point, and then the settlement and the inclination of the bridge are calculated and measured.
However, such methods are relatively original, the embedding depth of a reference point in a deep soil layer area (an optical instrument generally cannot penetrate through a compressed soil layer with a thickness of more than one hundred meters) is limited, and the method is often influenced by various manual activities such as pumping, excavation of a foundation pit and the like, fine settlement still occurs in the soil layer (namely a loose compressed layer) where the reference point is located, and absolute stability of the reference point cannot be guaranteed, so that an overall measurement error is caused, the measurement precision is difficult to guarantee, the precision requirement of high-standard millimeter-scale cannot be met, and the problems of large labor intensity, low efficacy and the like in manual observation exist. How to solve the problems is not an effective solution at present.
SUMMERY OF THE UTILITY MODEL
For solving the current technical problem who exists, the embodiment of the utility model provides a wear railway bridge deformation monitoring system down.
In order to achieve the above object, the embodiment of the present invention provides a technical solution that:
the embodiment of the utility model provides a wear railway bridge deformation monitoring system down, the system includes: the system comprises: the satellite positioning module is arranged at the standard datum point, the monitoring module is arranged at the measurement datum point, the conversion module is arranged at the conversion datum point, the measurement modules are respectively arranged at a plurality of observation points, and the control equipment is arranged; the standard datum points are positioned in an area which is not easy to deform; the measuring datum point is positioned in a bridge measuring area; the conversion datum points are located in the corresponding areas of the bearing platforms of the bridge; the plurality of observation points are located in the corresponding areas of the specific positions of the bridge; the control equipment is respectively connected with the satellite positioning assembly, the monitoring assembly, the conversion assembly and the measuring assembly through a transmission bus;
the satellite positioning assembly is used for obtaining a first elevation value of the measurement datum point relative to the standard datum point based on received satellite signals, and sending the first elevation value to the control equipment through the transmission bus;
the monitoring assembly comprises a first metering device and a second metering device, wherein the first metering device is used for obtaining a first elevation difference value and sending the first elevation value to the control equipment through the transmission bus; the first elevation difference value represents the deformation degree of the measuring datum point;
the conversion assembly comprises a second metering device and is used for obtaining a second elevation difference value and sending the second elevation difference value to the control equipment through the transmission bus; the second elevation difference value represents the deformation degree of the corresponding area of the bearing platform;
the measuring assembly comprises a third measuring device and is used for obtaining a third elevation difference value and sending the third elevation difference value to the control equipment through the transmission bus; and the third height difference value represents the deformation degree of an observation point corresponding to the measurement component.
In the above scheme, the control device is connected to the first metering device, the second metering device, the third metering device and the satellite positioning component through a transmission bus respectively.
In the above scheme, the plurality of observation points include at least one of an upper pier observation point, a middle pier observation point, and a cap observation point;
the conversion datum point comprises at least one of a pier upper conversion datum point, a pier middle conversion datum point and a bearing platform conversion datum point; the plurality of observation points are at the same height with respect to the corresponding conversion reference point.
In the scheme, the second metering device positioned at the upper part conversion reference point of the bridge pier and the third metering device positioned at the upper part observation point of the bridge pier are positioned at the same height and are connected through a transmission bus;
the second metering device positioned at the middle part of the bridge pier is positioned at the same height as the third metering device positioned at the middle observation point of the bridge pier and is connected with the third metering device through a transmission bus;
and the second metering device positioned at the bearing platform conversion datum point and the third metering device positioned at the bearing platform observation point are positioned at the same height and are connected through a transmission bus.
In the scheme, the second metering device positioned at the bearing platform conversion datum point is rigidly arranged on the conversion platform;
the second metering device positioned at the middle part of the bridge pier is rigidly connected to the conversion platform through the first positioning rod;
and the second metering device positioned at the conversion datum point at the upper part of the pier is rigidly connected to the conversion platform through a second positioning rod.
In the above scheme, the first metering device, the second metering device and the third metering device are all provided with protective covers.
In the above scheme, the monitoring assembly is arranged on an observation column located in a bridge measurement area, and the first metering device is fixed on the observation column.
The embodiment of the utility model provides a wear railway bridge deformation monitoring system down, the system includes: the satellite positioning module is arranged at the standard datum point, the monitoring module is arranged at the measurement datum point, the conversion module is arranged at the conversion datum point, the measurement modules are respectively arranged at a plurality of observation points, and the control equipment is arranged; the standard datum points are positioned in an area which is not easy to deform; the measuring datum point is positioned in a bridge measuring area; the conversion datum points are located in the corresponding areas of the bearing platforms of the bridge; the plurality of observation points are located in the corresponding areas of the specific positions of the bridge; the control equipment is respectively connected with the satellite positioning assembly, the monitoring assembly, the conversion assembly and the measuring assembly through a transmission bus; the satellite positioning assembly is used for obtaining a first elevation value of the measurement datum point relative to the standard datum point based on received satellite signals, and sending the first elevation value to the control equipment through the transmission bus; the monitoring assembly comprises a first metering device and a second metering device, wherein the first metering device is used for obtaining a first elevation difference value and sending the first elevation value to the control equipment through the transmission bus; the first elevation difference value represents the deformation degree of the measuring datum point; the conversion assembly comprises a second metering device and is used for obtaining a second elevation difference value and sending the second elevation difference value to the control equipment through the transmission bus; the second elevation difference value represents the deformation degree of the corresponding area of the bearing platform; the measuring assembly comprises a third measuring device and is used for obtaining a third elevation difference value and sending the third elevation difference value to the control equipment through the transmission bus; and the third height difference value represents the deformation degree of an observation point corresponding to the measurement component. By adopting the technical scheme of the embodiment of the invention, the first elevation value serving as the reference standard is obtained through the satellite positioning assembly arranged on the standard datum point, the elevation difference value of the measurement datum point is calibrated through the first elevation value, and the elevation difference value corresponding to each observation point is calibrated, so that the deformation degree of the area corresponding to each observation point is accurately obtained, the deformation degree of the soil layer area corresponding to the observation point is not required to be manually measured, and compared with the existing scheme of manually measuring the deformation of the bridge abutment, the method and the device have the advantages of small operation error and high efficiency.
Drawings
Fig. 1 is a schematic plan view of a deformation monitoring system for an underpass railroad bridge according to an embodiment of the present invention;
fig. 2 is a schematic view of the longitudinal arrangement of observation points in a system for monitoring deformation of an underpass railroad bridge according to an embodiment of the present invention;
fig. 3 is the utility model discloses an observation point transverse arrangement schematic diagram among lower cross-over railway bridge deformation monitoring system of embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention will be combined below to describe in further detail the specific technical solutions of the present invention. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The embodiment of the utility model provides a bottom-mounted railway bridge deformation monitoring system, and FIG. 1 is a schematic plan layout view of the bottom-mounted railway bridge deformation monitoring system provided by the embodiment of the utility model; fig. 2 is a schematic view of the longitudinal arrangement of observation points in a system for monitoring deformation of an underpass railroad bridge provided by an embodiment of the present invention; fig. 3 is a schematic view of the transverse arrangement of observation points in the deformation monitoring system for underpass railroad bridges provided by the embodiment of the present invention; as shown in conjunction with fig. 1, 2 and 3, the system 10 includes: a satellite positioning component 101 arranged at a standard datum point, a monitoring component 102 arranged at a measurement datum point, a conversion component 103 arranged at a conversion datum point, a measurement component 104 arranged at a plurality of observation points and a control device 105; the standard datum points are positioned in an area which is not easy to deform; the measuring datum point is positioned in a bridge measuring area; the conversion datum points are located in the corresponding areas of the bearing platforms of the bridge; the plurality of observation points are located in the corresponding areas of the specific positions of the bridge; the control equipment is respectively connected with the satellite positioning assembly, the monitoring assembly, the conversion assembly and the measuring assembly through a transmission bus; the control device 105 is connected with the satellite positioning component 101, the monitoring component 102 and the measuring component 103 through transmission buses respectively;
the satellite positioning assembly 101 is configured to obtain a first elevation value of the measurement reference point relative to the standard reference point based on the received satellite signals, and send the first elevation value to the control device 105 through the transmission bus;
the monitoring assembly 102 includes a first metrology device 1021 configured to obtain a first elevation difference value, and transmit the first elevation difference value to the control device 105 via the transmission bus; the first elevation difference value represents the deformation degree of the measuring datum point;
the conversion component 103 includes a second measurement device 1031, configured to obtain a second elevation difference value, and send the second elevation difference value to the control device 105 through the transmission bus; the second elevation difference value represents the deformation degree of the corresponding area of the bearing platform;
the measurement component 104 includes a third measurement device 1041, configured to obtain a third elevation difference value, and send the first elevation value to the control device 105 through the transmission bus; and the third height difference value represents the deformation degree of an observation point corresponding to the measurement component.
It should be noted that the embodiment of the present invention provides a deformation of a underpass railroad bridge, which can be a corresponding region of a underpass railroad bridge, such as settlement or upwarp deformation and/or a corresponding region of a pier with different heights, such as settlement or upwarp deformation.
The satellite positioning component 101, the first measuring device 1021, the second measuring device 1031, the third measuring device 1041 and the control device 105 may be connected by a transmission bus, and control signals or data may be transmitted through the transmission bus. For example, the satellite positioning component 101 may transmit the first elevation value to the control device 105 via a transmission bus; the first metrology device 1021 may transmit the first elevation difference value to the control apparatus 105 via a transmission bus; the second metrology device 1031 may transmit the second elevation difference value to the control apparatus 105 via the transmission bus; the third metering device 1041 may transmit the third elevation difference value to the control apparatus 105 via the transmission bus.
Here, the standard reference point needs to be used as a reference object, and it is necessary to ensure that an area where the standard reference point is located is relatively stable and does not deform, the standard reference point may be located at any position of the area, and is not limited herein. The concrete observation pier is arranged at a site where the visual field of the basement rock area with stable foundation is wide, the shape of the observation pier can be determined according to actual conditions, for convenience of understanding, the concrete observation square pier with the height of 1.5-2.0 m, the length of 0.3m and the width of 0.3m can be set for the shape of the observation pier, the lower part of the observation square pier can be embedded into the basement rock to be connected into a whole to be used as a standard datum point, the standard datum point is a fixed point, and the elevation of the standard datum point can be kept unchanged. Correspondingly, the satellite positioning component 101 set at the standard datum point can install the satellite positioning component 101 on the observation pier top, specifically, the satellite positioning component 101 can be fixed on the observation pier top by bolts, and the satellite positioning component 101 can include an antenna receiver, an antenna mast, an arrester and the like.
The measurement reference points are located in a bridge measurement area, wherein the bridge measurement area may be any area where the bridge deforms, and may include an area on a bridge cap and/or a bridge pier, as an example. The position of the measurement datum point can be located at any position of a wide view of a bridge measurement area, and is not limited herein, for convenience of understanding, as an example, a reinforced concrete observation column with the diameter of 0.8m can be arranged in the bridge ground plane measurement area, and the top of the observation column is flush with the top of a bridge bearing platform to serve as the measurement datum point. Correspondingly, the monitoring component 102 disposed at the measuring reference point may be the monitoring component 102 mounted on the observation platform surface, and specifically, the monitoring component 102 may be fixed on the top surface of the observation column by bolts.
The conversion reference point is located in a region corresponding to a bearing platform of the bridge, where the region may be any region on the bearing platform, and as an example, the region may be a bearing platform corner, specifically, any one of four corners of the bearing platform may be selected as a region where the conversion reference point is located, and any position of the region may be set as the conversion reference point.
The plurality of observation points are located in areas corresponding to specific positions of the bridge, wherein the specific positions of the bridge can be determined according to actual conditions, as an example, the specific positions can be bridge bearing platforms, bridge pier middle parts and bridge pier tops, and the areas corresponding to the specific positions of the bridge can be four sides of the bridge bearing platforms, four sides of the bridge pier middle parts, four sides of the bridge pier tops and the like. As an example, the plurality of observation points may be respectively located at the centers of four sides of a bridge cap, the centers of four sides of a middle part of a bridge pier, and the centers of four sides of a top part of the bridge pier. Correspondingly, the measurement components 104 arranged at a plurality of observation points may be one measurement component 104 arranged for each observation point.
In the present embodiment, the Satellite positioning component 101 may be a Global Positioning System (GPS) and/or a Bei Dou Navigation Satellite System (BDS). The satellite positioning assembly 101 may receive satellite signals, obtain a first elevation value of the measurement reference point relative to the standard reference point based on the satellite signals; here, the standard reference point is used as a reference object, which is a fixed point, and the elevation of the standard reference point may be known, may be the actual elevation of the standard reference point, or may be an arbitrarily set elevation. Since the satellite signals may carry the height of the measured reference point relative to the standard reference point, which is the relative height of the measured reference point relative to the standard reference point, the satellite positioning assembly 101 may determine the first height value of the measured reference point relative to the standard reference point based on the elevation of the standard reference point and the relative height of the measured reference point relative to the standard reference point. For convenience of understanding, by way of example, assuming that the standard reference point has an elevation of 100km, the relative height of the measurement reference point with respect to the standard reference point is plus or minus 10km, plus 10km indicating that the measurement reference point has an elevation higher than the standard reference point by 10km, minus 10km indicating that the measurement reference point has an elevation lower than the standard reference point by 10km, and when the relative height of the measurement reference point with respect to the standard reference point is plus 10km, obtaining a first elevation value of the measurement reference point with respect to the standard reference point of 110km based on the satellite signals; when the relative height of the measuring reference point relative to the standard reference point is minus 10km, a first height value of the measuring reference point relative to the standard reference point is 90km, which is obtained based on the satellite signals. As described above, the satellite positioning assembly 101 can obtain the first height value of the measurement reference point relative to the standard reference point based on the satellite signals.
The first measuring device 1021, the second measuring device 1031 and the third measuring device 1041 may be a high-precision measuring high-difference measuring instrument, and specifically may be a high-precision automatic monitoring measuring instrument with a precision not lower than 0.5mm and a sensitivity not lower than 0.01 mm. As an example, the first metering means 1021, the second metering means 1031 and the third metering means 1041 may be level meters. When the measurement datum point deforms, the deformation can be that the measurement datum point sinks downwards or arches upwards, the first metering device 1021 can measure the height of the measurement datum point sinking downwards or arches upwards in real time according to the height difference same and height transfer principle, specifically, the first metering device 1021 can reflect the height of the measurement datum point sinking downwards or arches upwards as a first height difference value in real time, similarly, when the conversion datum point deforms, the second metering device 1031 can measure the height of the conversion datum point sinking downwards or arches upwards in real time according to the height difference same and height transfer principle, and specifically, the second metering device 1031 can reflect the height of the conversion datum point sinking downwards or arches upwards as a second height difference value in real time. Similarly, when the observation point is deformed, the third measuring device 1031 can measure the height of the downward settlement or the upward arching of the observation point in real time according to the height difference identity and the height transfer principle, and specifically, the third measuring device 1031 can reflect the height of the downward settlement or the upward arching of the observation point as the second height difference value in real time. Here, the first measuring device 1021, the second measuring device 1031 and the third measuring device 1041 may have a communication function, and the elevation difference value is transmitted to the control apparatus 105 through the communication function in real time. The first measuring device 1021, the second measuring device 1031, and the third measuring device 1041 may also have a transmission interface, and are connected to the transmission bus through the transmission interface, so as to transmit the elevation difference value to the control device 105 through the transmission bus.
The control device 105 may be located at any position, not limited herein, and for ease of understanding, as an example, the control device 105 may be located at the periphery of a reinforced concrete observation post, as shown in fig. 1, and in fig. 1, the control device 105 may be located near the monitoring assembly 102 since the monitoring assembly 102 is bolted on top of the observation post.
The control device 105 may be a device capable of automatically acquiring data and performing corresponding processing on the acquired data, and is not limited herein. As an example, the control device 105 may be an electronic device such as a computer, a workstation, a server, or the like. The control device 105 may obtain the first elevation value, the first elevation difference value, the second elevation difference value, and the third elevation difference value in real time or at regular time, determine the degree of deformation of the area corresponding to the observation point based on the first elevation value, the first elevation difference value, the second elevation difference value, and the third elevation difference value, determine the elevation of the measurement reference point based on the first elevation value and the first elevation difference value in real time, determine the elevation of the converted reference point based on the elevation of the measurement reference point and the second elevation difference value, and then convert the elevation of the reference point and the third elevation difference value based on the degree of deformation of the area corresponding to the observation point. As one example, the elevations of the measurement reference points may be determined based on the first elevation value plus or minus the first elevation difference value, the elevations of the transformed reference points may be determined based on the elevations of the measurement reference points plus or minus the second elevation difference value, and the elevations of the observation points may be determined based on the elevations of the transformed reference points plus or minus the second elevation difference value. The addition is for the case of deformation by upward arching, and the subtraction is for the case of deformation by subsidence.
In an optional embodiment of the present invention, the control device 105 is connected to the first metering device 1021, the second metering device 1031 and the satellite positioning assembly 101 through a transmission bus respectively.
Here, the first metering device, the second metering device and the satellite positioning component may automatically measure data, and transmit the measured data to the control device through the transmission bus, so that the control device can acquire the data in real time and perform corresponding processing.
In an alternative embodiment of the present invention, in the embodiment of the present invention, the control device 105 is connected to the first metering device 1021, the second metering device 1031, the third metering device 1032 and the satellite positioning assembly 101 through a transmission bus respectively.
Here, the first metering device 1021, the second metering device 1031, the third metering device 1032 and the satellite positioning component 101 may automatically measure data, and transmit the measured data to the control device through the transmission bus, so that the control device can obtain the data in real time and perform corresponding processing.
In an optional embodiment of the invention, the plurality of observation points comprise at least one of an upper pier observation point, a middle pier observation point and a cap observation point;
the conversion datum point comprises at least one of a pier upper conversion datum point, a pier middle conversion datum point and a bearing platform conversion datum point; the plurality of observation points are at the same height with respect to the corresponding conversion reference point.
The second measuring device positioned at the upper part of the bridge pier conversion reference point and the third measuring device positioned at the upper part observation point of the bridge pier are positioned at the same height and are connected through a transmission bus;
the second metering device positioned at the middle part of the bridge pier is positioned at the same height as the third metering device positioned at the middle observation point of the bridge pier and is connected with the third metering device through a transmission bus;
and the second metering device positioned at the bearing platform conversion datum point and the third metering device positioned at the bearing platform observation point are positioned at the same height and are connected through a transmission bus.
For ease of understanding, an illustration is made.
Example one: the plurality of observation points only comprise bearing platform observation points, the conversion datum points only comprise bearing platform conversion datum points, the plurality of bearing platform observation points and the bearing platform conversion datum points are at the same height, and the second metering device located at the bearing platform conversion datum points and the third metering device located at the bearing platform observation points are at the same height and are connected through a transmission bus.
Example two: the plurality of observation points only comprise bridge pier middle observation points, the conversion reference points only comprise bridge pier middle conversion reference points, the plurality of bridge pier middle observation points and the bridge pier middle conversion reference points are at the same height, and the second metering device located at the bridge pier middle observation points and the third metering device located at the bridge pier middle conversion reference points are at the same height and are connected through a transmission bus.
Example three: the plurality of observation points only comprise upper pier observation points, the conversion reference point only comprises upper pier conversion reference points, the plurality of upper pier observation points and the upper pier conversion reference points are at the same height, and the second metering device located at the upper pier conversion reference point and the third metering device located at the upper pier observation points are at the same height and are connected through a transmission bus.
Example four: the plurality of observation points simultaneously comprise an upper pier observation point, a middle pier observation point and a bearing platform observation point; the conversion datum points simultaneously comprise a pier upper part conversion datum point, a pier middle part conversion datum point and a bearing platform conversion datum point; the second metering device positioned at the upper part of the bridge pier conversion datum point and the third metering device positioned at the upper part of the bridge pier observation point are positioned at the same height and are connected through a transmission bus; the second metering device positioned at the middle part of the bridge pier is positioned at the same height as the third metering device positioned at the middle observation point of the bridge pier and is connected with the third metering device through a transmission bus; and the second metering device positioned at the bearing platform conversion datum point and the third metering device positioned at the bearing platform observation point are positioned at the same height and are connected through a transmission bus.
For any two-by-two combination of the first example, the second example and the third example, no further example is described here, and reference may be made to the combination of the first example, the second example and the third example in the fourth example.
In an embodiment of the invention, the second gauge 1031 member at the platform conversion datum point is rigidly disposed on the conversion platform;
the second metering device 1031 positioned at the middle part of the bridge pier is rigidly connected to the conversion platform through a first positioning rod;
the second gauge 1031 located at the transition reference point on the upper portion of the pier is rigidly connected to the transition platform by a second positioning rod.
Here, the conversion platform may be disposed on a bridge bearing platform affected by underpass, and as an example, may be disposed at any one corner of the bearing platform, the conversion platform may employ a rigid plate having a thickness of not less than 50mm, the rigid plate is a square having a length of 0.5m and a width of 0.5m, four corners of the square may be fixed to the bearing platform by expansion bolts, a point may be optionally selected on the conversion platform as a bearing platform conversion reference point, and a second gauge 1031 is rigidly disposed at the point, so that the second gauge 1031 can reflect a deformation degree of the point in real time. On this conversion platform, the position of the distance is predetermine to interval cushion cap conversion datum point sets up the locating lever, will locating lever rigid connection in conversion platform, wherein, predetermine the distance and can confirm according to actual conditions, should predetermine the distance and be the less as good as, near cushion cap conversion datum point as far as possible, this locating lever includes first locating lever and second locating lever, and first locating lever and second locating lever are the indeformable pole, can be the steel pipe, and first locating lever and second locating lever lower extreme are connected conversion platform, the second metering device of pier middle part conversion datum point and the second metering device of pier upper portion conversion datum point are connected respectively to the upper end, and the length of first locating lever is the same with the height in pier middle part, and the length of second locating lever is the same with the height on pier upper portion. For convenience of understanding, by way of example, a non-deformable short positioning steel pipe with the diameter not smaller than 80mm can be vertically welded on the conversion platform, the height of the steel pipe is basically as high as the middle part of the pier, and the top end of the steel pipe is rigidly connected with the conversion datum point liquid level meter in the middle part of the pier; and a non-deformable positioning steel pipe with the diameter not less than 160mm is vertically welded on the conversion platform, the height of the steel pipe is basically equal to the height of the upper part of the pier, and the top end of the steel pipe is rigidly connected with a conversion reference point liquid level meter at the upper part of the pier.
In an embodiment of the present invention, the first metering device 1021, the second metering device 1031 and the third metering device 1032 are all provided with a protective cover.
Here, the protective cover mainly protects the metering device, and the protective cover may cover the metering device, and as an example, the protective cover may cover the metering device, and a protective cover may cover each of the first metering device 1021, the second metering device 1031, and the third metering device 1032.
In the embodiment of the present invention, the monitoring component 102 is disposed on the observation post located in the bridge measurement area, and the first measuring device is fixed on the observation post.
Here, the beam measuring region may be any region where the bridge is deformed, and the bridge measuring region may include a region on a bridge cap and/or a bridge pier, as an example. The position of the measurement datum point can be located at any position of a wide view of a bridge measurement area, and is not limited herein, for convenience of understanding, as an example, a reinforced concrete observation column with the diameter of 0.8m can be arranged in the bridge ground plane measurement area, and the top of the observation column is flush with the top of a bridge bearing platform to serve as the measurement datum point. As an example, the first metrology device 1021 may be bolted to the viewing column.
The embodiment of the utility model provides a roadbed deformation monitoring system, wherein, through setting up in the satellite positioning subassembly of standard datum point, obtain the first elevation value as reference standard, to calibrate the elevation difference value of measuring datum point through this first elevation value, and calibrate the elevation difference value that corresponds to each observation point, thereby the accurate deformation degree that obtains each observation point and corresponds the region, need not the deformation degree that artifical manual measurement observation point corresponds the soil layer region, compare in the scheme that current artifical manual measurement bridge pier warp, its operational error is little, the efficiency is high.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a wear railway bridge deformation monitoring system which characterized in that, the system includes: the satellite positioning module is arranged at the standard datum point, the monitoring module is arranged at the measurement datum point, the conversion module is arranged at the conversion datum point, the measurement modules are respectively arranged at a plurality of observation points, and the control equipment is arranged; the standard datum points are positioned in an area which is not easy to deform; the measuring datum point is positioned in a bridge measuring area; the conversion datum points are located in the corresponding areas of the bearing platforms of the bridge; the plurality of observation points are located in the corresponding areas of the specific positions of the bridge; the control equipment is respectively connected with the satellite positioning assembly, the monitoring assembly, the conversion assembly and the measuring assembly through a transmission bus;
the satellite positioning assembly is used for obtaining a first elevation value of the measurement datum point relative to the standard datum point based on received satellite signals, and sending the first elevation value to the control equipment through the transmission bus;
the monitoring assembly comprises a first metering device and a second metering device, wherein the first metering device is used for obtaining a first elevation difference value and sending the first elevation value to the control equipment through the transmission bus; the first elevation difference value represents the deformation degree of the measuring datum point;
the conversion assembly comprises a second metering device and is used for obtaining a second elevation difference value and sending the second elevation difference value to the control equipment through the transmission bus; the second elevation difference value represents the deformation degree of the corresponding area of the bearing platform;
the measuring assembly comprises a third measuring device and is used for obtaining a third elevation difference value and sending the third elevation difference value to the control equipment through the transmission bus; and the third height difference value represents the deformation degree of an observation point corresponding to the measurement component.
2. The system according to claim 1, characterized in that said control device is connected with said first gauging means, said second gauging means, said third gauging means and said satellite positioning assembly, respectively, by means of a transmission bus.
3. The system of claim 1, wherein the plurality of observation points comprises at least one of an upper pier observation point, a middle pier observation point, and a cap observation point;
the conversion datum point comprises at least one of a pier upper conversion datum point, a pier middle conversion datum point and a bearing platform conversion datum point; the plurality of observation points are at the same height with respect to the corresponding conversion reference point.
4. The system of claim 3,
the second metering device positioned at the upper part of the bridge pier conversion datum point and the third metering device positioned at the upper part of the bridge pier observation point are positioned at the same height and are connected through a transmission bus;
the second metering device positioned at the middle part of the bridge pier is positioned at the same height as the third metering device positioned at the middle observation point of the bridge pier and is connected with the third metering device through a transmission bus;
and the second metering device positioned at the bearing platform conversion datum point and the third metering device positioned at the bearing platform observation point are positioned at the same height and are connected through a transmission bus.
5. The system of claim 4,
the second metering device positioned at the bearing platform conversion datum point is rigidly arranged on the conversion platform;
the second metering device positioned at the middle part of the bridge pier is rigidly connected to the conversion platform through the first positioning rod;
and the second metering device positioned at the conversion datum point at the upper part of the pier is rigidly connected to the conversion platform through a second positioning rod.
6. The system of claim 1, wherein the first, second and third metering devices are each provided with a protective cover.
7. The system of claim 1, wherein the monitoring assembly is disposed on a viewing column located in a bridge survey area, the first metrology device being secured to the viewing column.
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