CN-116817744-B - Bridge swivel space track monitoring system and monitoring method

CN116817744BCN 116817744 BCN116817744 BCN 116817744BCN-116817744-B

Abstract

A bridge turning space track monitoring system comprises a laser vertical projection and horizontal monitoring device, a turning process monitoring device and two groups of turning positioning devices, wherein the laser vertical projection and horizontal monitoring device is arranged at the end of a bridge, the turning process monitoring device and the turning positioning devices are arranged on the ground, the turning process monitoring device is located on a ground theoretical projection track line, the two groups of turning positioning devices are respectively located at the starting point position and the end point position of the ground theoretical projection track line, the laser vertical projection and horizontal monitoring device is used for monitoring a bridge horizontal movement track line, the turning process monitoring device is used for monitoring deviation values between a bridge turning process and a theoretical turning, and the turning positioning device is used for observing transverse and longitudinal deviation values of an actual track laser point and a theoretical track laser point of the bridge at the starting point position and the end point position. The design is convenient and stable to monitor and has a good monitoring effect.

Inventors

WANG XIANG
WANG YONG
Yu Gaoyin
WANG YONGTAI
ZHOU ZINAN
CHEN SHIMENG
YUAN PANFENG
WU FAN
WANG ZHENGYI
TANG CHENLIN

Assignees

中铁十一局集团有限公司
中铁十一局集团第四工程有限公司

Dates

Publication Date: 20260512
Application Date: 20230509

Claims (10)

1. The bridge swivel space track monitoring system is characterized by comprising a laser vertical projection and horizontal monitoring device (2), a swivel process monitoring device (3) and two groups of swivel positioning devices (4), wherein the laser vertical projection and horizontal monitoring device (2) is arranged at the end of a bridge (1), the swivel process monitoring device (3) and the swivel positioning devices (4) are both arranged on the ground, the swivel process monitoring device (3) is positioned on a ground theoretical projection track line (5) which is formed by the laser vertical projection and horizontal monitoring device (2) vertically downwards in the theoretical swivel process of the bridge (1), and the two groups of swivel positioning devices (4) are respectively positioned at the starting point position and the end point position of the ground theoretical projection track line (5); the laser vertical projection and horizontal monitoring device (2) is used for emitting laser vertically downwards at the end head of the bridge (1) to perform vertical projection of the outer contour of the bridge (1) to obtain an actual track laser point, and automatically measuring the actual vertical distance from the end head of the bridge (1) to the ground while performing vertical projection to perform horizontal movement track line monitoring of the bridge (1); The swivel process monitoring device (3) is used for monitoring the deviation value of an actual track laser point of the laser vertical projection and horizontal monitoring device (2) and a ground theoretical projection track line (5) of the bridge (1) in the swivel process of the bridge (1) and measuring the deviation value of the actual vertical distance from the ground to the theoretical vertical distance of the laser vertical projection and horizontal monitoring device (2) arranged at the end of the bridge (1); the swivel positioning device (4) is used for observing transverse and longitudinal deviation values of the bridge (1) under the action of external force or internal force in the process of standing and waiting for swivel at the starting point position of the ground theoretical projection trajectory line (5), and observing transverse and longitudinal deviation values of an actual trajectory laser point and a theoretical trajectory laser point of the laser vertical projection and horizontal monitoring device (2) at the end point position of the ground theoretical projection trajectory line (5) after the bridge (1) is actually swiveled in place.
2. The bridge swivel space trajectory monitoring system according to claim 1, wherein the laser vertical projection and horizontal monitoring device (2) comprises four automatic leveling bases (21) and four mounting frames (22), the four automatic leveling bases (21) are respectively connected to the upper sides of the four mounting frames (22), the four mounting frames (22) are respectively installed at four top corners of the bridge (1), the automatic leveling bases (21) comprise top plates (225) and bottom plates (224) which are arranged at intervals up and down, leveling devices for leveling the top plates (225) are arranged on the upper sides of the bottom plates (224), the leveling devices are connected with the top plates (225), connecting holes (227) are formed on the lower sides of the bottom plates (224), oval holes (237) are formed on the lower sides of the mounting frames (22), hollow bolts (238) are arranged in the oval holes (237), the bottom ends of the hollow bolts (238) are connected to the connecting holes (227) through threads after passing through the oval holes (237), distance measuring devices are formed on the outer sides of the hollow bolts (238) and the inner sides of the hollow bolts (226), distance measuring devices (23) are arranged on the inner sides of the laser shafts (23), the output end of the laser ranging module (28) is arranged relative to the central axis of the hollow bolt (238); The laser ranging module (28) is used for emitting indication laser vertically downwards and measuring the distance from the automatic leveling base (21) to the ground.
3. The bridge swivel space trajectory monitoring system according to claim 2, wherein the leveling device comprises a circular horizontal bubble (231), a power supply (29), rod end joint bearings (228), two support rods (229) and two groups of driving components (26), wherein the top plate (225) and the bottom plate (224) are of regular triangle structures, the circular horizontal bubble (231), the power supply (29) and the two groups of driving components (26) are arranged on the upper side of the bottom plate (224), the lower end of the rod end joint bearings (228) is connected to one vertex of the bottom plate (224), the upper end of the rod end joint bearings (228) is hinged to one vertex of the top plate (225), the two support rods (229) are symmetrically arranged on the other two vertices of the bottom plate (224) along the central axis of the bottom plate (224), the upper ends of the two support rods (229) are respectively connected to the other two vertices of the top plate (225) in a threaded manner, the two groups of driving components (26) are respectively connected to the power supply (29) and are respectively provided with the control components (24) on the upper side of the top plate (225), the control components (24) are respectively arranged on the lower side of the top plate (29), and the display components (24) are respectively arranged on the upper side of the top plate (29) The display assembly (27) is connected with the control assembly (24).
4. The bridge rotator space trajectory monitoring system according to claim 3, wherein the laser vertical projection and level monitoring device (2) further comprises a first motor (210), a pinion (211), a large gear (212), a prism frame (219), a second motor (213), a driving gear (214), a driven gear (215) and a prism head (220), wherein the first motor (210) is connected with the control assembly (24), the first motor (210) is connected to the lower side of the top plate (225), the small gear (211) is connected to the output end of the first motor (210), the large gear (212) is located in the through hole (226) and is meshed with the small gear (211), the large gear (212) is sleeved on the outer peripheral surface of the lower end of the mounting shaft (23), the prism frame (219) is connected to the upper end of the mounting shaft (23), the second motor (213) is connected with the control assembly (24), the second motor (213) is connected to the output end of the first motor (210), the large gear (212) is meshed with the driven gear (219) and is meshed with the output end (219) of the driving gear (219), the prism head (220) is rotatably connected to the prism frame (219) through a transverse shaft (222), and the driven gear (215) is sleeved on the transverse shaft (222).
5. The bridge swivel space trajectory monitoring system according to claim 1, wherein the swivel process monitoring device (3) comprises a plurality of conical tables (31), the conical tables (31) are installed on the ground along a ground theoretical projection trajectory line (5), the upper end faces of the conical tables (31) are horizontally arranged, reflection patches (32) with cross-shaped stars are installed on the upper end faces of the conical tables (31), the center of the cross-shaped stars on the reflection patches (32) is located on the ground theoretical projection trajectory line (5), the auxiliary lines of the cross-shaped scales coincide with the perpendicular bisectors of the ground theoretical projection trajectory line (5), and the reflection patches (32) are used for carrying out position indication of the bridge (1) and distance measurement on reflected laser light emitted by the laser perpendicular projection and horizontal monitoring device (2).
6. The bridge swivel space trajectory monitoring system according to claim 1, wherein the swivel positioning device (4) comprises a stainless steel target (41) and a supporting frame (42), the supporting frame (42) is located on the ground, the stainless steel target (41) is connected to the upper side of the supporting frame (42), a cross coordinate scale (43) is arranged at the center of the upper end face of the stainless steel target (41), a plurality of arc holes (44) are formed in the upper end face of the stainless steel target (41)), the arc holes (44) are circumferentially distributed relative to the center point of the cross coordinate scale (43) on the stainless steel target (41), threaded columns (45) are arranged in each arc hole (44), the lower ends of the threaded columns (45) are connected to the upper side of the supporting frame (42), two nuts (46) are connected to the outer peripheral surface of the threaded columns (45) in a threaded mode, the two nuts (46) are located on the upper side and the lower side of the stainless steel target (41), and the stainless steel target (41) is provided with a plurality of air bubbles (48) on the center of the stainless steel target (41) or the other side of the stainless steel target (4).
7. A bridge swivel space trajectory monitoring method is characterized in that the monitoring method is applied to the bridge swivel space trajectory monitoring system according to any one of claims 1-6, and the monitoring method comprises the following steps: S1, installing a laser vertical projection and horizontal monitoring device (2) at the end of a bridge (1), enabling the laser vertical projection and horizontal monitoring device (2) to vertically emit laser downwards, installing a group of swivel positioning devices (4) at laser points on the ground, setting the positions as starting point positions of ground theoretical projection track lines (5), and enabling the centers of the swivel positioning devices (4) to be aligned with the centers of the laser points; S2, marking a ground theoretical projection trajectory line (5) of the bridge (1) on a flat ground by using instruments and equipment by taking the horizontal distance from the laser emission point of the laser vertical projection and horizontal monitoring device (2) to the rotation center of the bridge (1) as a radius, arranging a plurality of continuous intermediate points on the ground theoretical projection trajectory line (5), and installing a rotating body process monitoring device (3) at the intermediate points; S3, arranging a group of swivel positioning devices (4) at the end position of a ground theoretical projection trajectory line (5), wherein the center of each swivel positioning device (4) coincides with the laser emission point of the laser vertical projection and horizontal monitoring device (2) after the theoretical swivel of the bridge (1) is in place; s4, starting turning the bridge (1), observing whether a laser point emitted by the laser vertical projection and horizontal monitoring device (2) on the ground coincides with the central point of the turning process monitoring device (3) on the ground theoretical projection track line (5), and comparing the laser point with the theoretical vertical distance after downward ranging, wherein if the spatial position coincides with the theoretical value, the bridge (1) is turned normally, and if the spatial position deviation is large, adopting corresponding measures to process the bridge (1) and continuing turning; S5, after the bridge (1) is actually turned in place, observing whether a laser point emitted by the laser vertical projection and horizontal monitoring device (2) on the ground coincides with the center point of the turning positioning device (4) at the end position, if not, observing longitudinal and transverse deviation values of an actual track laser point of the laser vertical projection and horizontal monitoring device (2) and a theoretical track laser point and deviation values of an actual vertical distance and a theoretical vertical distance of the bridge (1), and finely adjusting the posture of the bridge (1) by utilizing a hydraulic jack so that the bridge (1) reaches the theoretical in-place position, and pouring concrete for anchoring between an upper bearing platform and a lower bearing platform.
8. The bridge swivel space trajectory monitoring method of claim 7, wherein the method comprises the steps of: The laser vertical projection and level monitoring device (2) comprises four automatic leveling bases (21) and four mounting frames (22), the four automatic leveling bases (21) are respectively connected to the four upper sides of the mounting frames (22), the four mounting frames (22) are respectively installed at four top angles of a bridge (1), the automatic leveling bases (21) comprise top plates (225) and bottom plates (224) which are arranged at intervals up and down, leveling devices for leveling the top plates (225) are arranged on the upper sides of the bottom plates (224), the leveling devices are connected with the top plates (225), connecting holes (227) are formed in the lower sides of the bottom plates (224), oval holes (237) are formed in the lower sides of the mounting frames (22), hollow bolts (238) are arranged in the oval holes (237), the bottoms of the hollow bolts (238) penetrate through the oval holes (237) and are connected with the connecting holes (227) in a threaded mode, the outer sides of the hollow bolts (238) are in contact with the light surfaces of the inner sides of the oval holes (237), the upper sides of the hollow bolts (226) are provided with through holes (226), the laser ranging shafts (23) are formed in the upper sides of the top plates (226), the output end of the laser ranging module (28) is arranged relative to the central axis of the hollow bolt (238); In the steps S1 and S4, the four hollow bolts (238) are loosened to enable the four automatic leveling bases (21) to horizontally move along the oval holes (237) relative to the rotation center of the bridge (1), the rotation radiuses of the four automatic leveling bases (21) are the same and share one ground theoretical projection trajectory line (5), then the four hollow bolts (238) are tightened, the four automatic leveling bases (21) are fixed, meanwhile, the laser ranging module (28) emits laser downwards and measures the actual vertical distance between the end head of the bridge (1) and the ground, in the rotating process of the bridge (1), the laser points on the four ground are compared with the ground theoretical projection trajectory line (5), meanwhile, the four actual vertical distances are respectively compared with the theoretical vertical distances calculated after the previous measurement, when the laser points deviate from the ground theoretical projection trajectory line (5), the bridge (1) is deflected in the rotating process, and corresponding measures are taken to treat the bridge (1) continuously when the deflection value exceeds the allowable value.
9. The bridge swivel space trajectory monitoring method of claim 7, wherein the method comprises the steps of: The rotating body process monitoring device (3) comprises a plurality of conical tables (31), the conical tables (31) are arranged on the ground along a ground theoretical projection trajectory line (5), the upper end faces of the conical tables (31) are horizontally arranged, reflection patches (32) with cross-shaped stars are arranged on the upper end faces of the conical tables (31), the center of the cross-shaped stars on the reflection patches (32) is located on the ground theoretical projection trajectory line (5), and the auxiliary cross-shaped scale lines coincide with the perpendicular bisectors of the ground theoretical projection trajectory line (5); In the step S4, when the bridge (1) rotates, the laser points projected by the laser vertical projection and horizontal monitoring device (2) are observed on the reflective patches (32), when the laser points deviate from the center of the cross scale auxiliary line, the actual movement track of the bridge (1) deviates from the theoretical movement track, the deviation value of the bridge (1) on the middle point is read out through the cross scale auxiliary line, the vertical distance on the middle point is measured, the initial elevation of the laser vertical projection and horizontal monitoring device (2) is used as the reduced number, the elevations of the reflective patches (32) on the ground are respectively used as the reduced number, the difference between the laser vertical projection and horizontal monitoring device (2) is calculated as the actual vertical distance, then the actual vertical distance is compared with the theoretical vertical distance to obtain the deviation value of the vertical direction and the plane position of the bridge (1), the space monitoring of the projection track and the horizontal movement track of the bridge (1) is performed, and when the allowable value is exceeded, the normal rotation of the bridge (1) is realized after corresponding measures are taken.
10. The bridge swivel space trajectory monitoring method of claim 7, wherein the method comprises the steps of: the rotating body positioning device (4) comprises a stainless steel target (41) and a supporting frame (42), wherein the supporting frame (42) is positioned on the ground, the stainless steel target (41) is connected to the upper side of the supporting frame (42), a cross coordinate scale (43) is arranged at the center of the upper end face of the stainless steel target (41), a plurality of arc holes (44) are formed in the upper end face of the stainless steel target (41)), the arc holes (44) are distributed circumferentially relative to the center point of the cross coordinate scale (43) on the stainless steel target (41), threaded columns (45) are arranged in each arc hole (44), the lower ends of the threaded columns (45) are connected to the upper side of the supporting frame (42), two nuts (46) are connected to the outer peripheral surface of each threaded column (45), the two nuts (46) are respectively positioned on the upper side and the lower side of the stainless steel target (41), a plurality of equidistant auxiliary scale rings (47) or a plurality of square-shaped scale rings (48) are arranged at the center of the stainless steel target (41), and air bubbles (7) are arranged on the stainless steel target (41); In the steps S1, S3 and S5, before a bridge (1) rotates, firstly, an initial point of a ground theoretical projection track line (5) is discharged on the ground by an instrument, then a support frame (42) is pre-buried at a corresponding initial position of the initial point, the support frame (42) moves to enable the center of a cross coordinate scale (43) on a stainless steel plate target (41) to be aligned with a laser point of a laser vertical projection and horizontal monitoring device (2), then a compass (7) is observed, the stainless steel plate target (41) is horizontally rotated according to the angle of the compass (7), an arc-shaped hole (44) rotates around a fixed threaded column (45) to enable a cross coordinate axis of the stainless steel plate target (41) to be parallel to the longitudinal axis of the bridge (1), then a nut (46) on each threaded column (45) is rotated, when horizontal bubbles are observed and are in the same, the stainless steel plate target (41) is leveled, then the end of the ground theoretical projection track line (5) is discharged on the ground by the instrument, and then another support frame (42) is placed at a corresponding end point position, and the end point of the stainless steel plate target (41) is leveled, and the other cross coordinate axis (42) is overlapped with the other end point of the stainless steel plate target (41) vertically; When the bridge (1) is rotated to be in place, observing whether a laser point emitted by the laser vertical projection and horizontal monitoring device (2) to the ground coincides with the center point of the other stainless steel plate target (41), and if not, reading out the transverse and longitudinal error values of an actual track laser point and a theoretical track laser point of the bridge (1) at the end position of a ground theoretical projection track line (5) by the laser vertical projection and horizontal monitoring device (2) when the bridge (1) is in place on an auxiliary scale ring (47) or a square grid (48) of a cross coordinate scale (43), and finely adjusting the posture of the bridge (1) to the theoretical position by a hydraulic jack according to the deviation value of the actual vertical distance and the theoretical vertical distance measured by the laser vertical projection and horizontal monitoring device (2).

Description

Bridge swivel space track monitoring system and monitoring method Technical Field The invention relates to the technical field of bridge swivel construction monitoring, in particular to a bridge swivel space track monitoring system and a bridge swivel space track monitoring method. Background In order to ensure smooth positioning of the beam body, the swivel bridge needs to monitor the posture of the beam body by continuously measuring a large number of monitoring points, so that the monitoring work is very heavy and a large number of complex calculation programs are needed, and although some monitoring work introduces automatic monitoring, once equipment faults such as monitoring instruments, computer equipment, program software, communication interfaces and the like or calculation errors lead to the fact that the swivel work can be continued after troubleshooting such as suspension and the like, the cantilever beam is caused to stay for a long waiting time, and the stability of the beam body and the effective swivel time of the beam body are not facilitated to be delayed. Disclosure of Invention The invention aims to overcome the defects and problems of complex monitoring work and unstable monitoring of a bridge swivel in the prior art, and provides a bridge swivel space track monitoring system and a bridge swivel space track monitoring method with convenient and stable monitoring. In order to achieve the above object, the technical solution of the present invention is: The bridge turning space track monitoring system comprises a laser vertical projection and horizontal monitoring device, a turning process monitoring device and two sets of turning positioning devices, wherein the laser vertical projection and horizontal monitoring device is arranged at the end of a bridge, the turning process monitoring device and the turning positioning devices are all arranged on the ground, the turning process monitoring device is positioned on a ground theoretical projection track line formed by the laser vertical projection and horizontal monitoring device vertically downwards in the bridge theoretical turning process, and the two sets of turning positioning devices are respectively positioned at the starting point position and the end point position of the ground theoretical projection track line; The laser vertical projection and horizontal monitoring device is used for emitting laser vertically downwards at the end head of the bridge to perform vertical projection of the outline of the bridge to obtain an actual track laser point, and automatically measuring the actual vertical distance from the end head of the bridge to the ground to perform horizontal movement track line monitoring of the bridge while performing vertical projection; The swivel process monitoring device is used for monitoring the deviation value of an actual track laser point of the laser vertical projection and horizontal monitoring device and a ground theoretical projection track line of the bridge in the swivel process of the bridge and measuring the deviation value of the actual vertical distance from the ground to the theoretical vertical distance of the laser vertical projection and horizontal monitoring device arranged at the end of the bridge; The swivel positioning device is used for observing transverse and longitudinal deviation values generated under the action of external force or internal force in the process of standing and waiting for swivel at the starting point position of the ground theoretical projection trajectory line of the bridge, and observing transverse and longitudinal deviation values of an actual trajectory laser point and a theoretical trajectory laser point of the laser vertical projection and horizontal monitoring device at the end point position of the ground theoretical projection trajectory line after the bridge is actually swiveled in place. The laser vertical projection and horizontal monitoring device comprises four automatic leveling bases and four mounting frames, wherein the four automatic leveling bases are respectively connected to the upper sides of the four mounting frames, the four mounting frames are respectively arranged at four top angles of a bridge, the automatic leveling bases comprise top plates and bottom plates which are arranged at intervals up and down, the upper sides of the bottom plates are provided with leveling devices for leveling the top plates, the leveling devices are connected with the top plates, the lower sides of the bottom plates are provided with connecting holes, the lower sides of the mounting frames are provided with oval holes, hollow bolts are arranged in the oval holes, the bottoms of the hollow bolts penetrate through the oval holes and are in threaded connection with the connecting holes, the outer sides of the hollow bolts are in contact with the light surfaces of the inner sides of the oval holes, the upper sides of the top plates are provided with through holes, mo