CN117601911A - Subway tunnel deformation monitoring device and method based on three-dimensional laser scanning - Google Patents

Subway tunnel deformation monitoring device and method based on three-dimensional laser scanning Download PDF

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Publication number
CN117601911A
CN117601911A CN202311563482.7A CN202311563482A CN117601911A CN 117601911 A CN117601911 A CN 117601911A CN 202311563482 A CN202311563482 A CN 202311563482A CN 117601911 A CN117601911 A CN 117601911A
Authority
CN
China
Prior art keywords
dimensional laser
wall
subway tunnel
fixed
laser scanner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311563482.7A
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Chinese (zh)
Inventor
郑艳
金鑫
杜向锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Urban Construction Exploration and Surveying Design Research Institute Co Ltd
Guangdong College of Industry and Commerce
Original Assignee
Beijing Urban Construction Exploration and Surveying Design Research Institute Co Ltd
Guangdong College of Industry and Commerce
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Urban Construction Exploration and Surveying Design Research Institute Co Ltd, Guangdong College of Industry and Commerce filed Critical Beijing Urban Construction Exploration and Surveying Design Research Institute Co Ltd
Priority to CN202311563482.7A priority Critical patent/CN117601911A/en
Publication of CN117601911A publication Critical patent/CN117601911A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
    • B61D15/08—Railway inspection trolleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
    • B61F19/06—Nets, catchers, or the like for catching obstacles or removing them from the track
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
    • B61H11/02—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of self-applying brakes
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
    • E01H8/10—Removing undesirable matter from rails, flange grooves, or the like railway parts, e.g. removing ice from contact rails, removing mud from flange grooves
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Transportation (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention discloses a subway tunnel deformation monitoring device and method based on three-dimensional laser scanning, and relates to the field of monitoring devices. The device includes that the chassis rotates the movable rod that sets up in the chassis lower part, and the equal fixedly connected with rail wheel in both ends of movable rod, the top terminal surface sliding connection of movable rod has the supporting seat, and the top terminal surface of supporting seat is provided with three-dimensional laser scanner. According to the subway tunnel deformation monitoring device and the subway tunnel deformation monitoring method based on three-dimensional laser scanning, the fixed box is arranged on the end face of the bottom of the underframe, the bidirectional threaded rod capable of driving the movable frame to move is arranged in the fixed box, so that fixed teeth arranged on the inner wall of the movable frame are clamped with the toothed ring arranged on the outer wall of the movable rod, the underframe and the rail are connected and fixed, and position change of the underframe and the three-dimensional laser scanner arranged at the underframe under the action of external force is avoided, and the accuracy of fixed point monitoring data of the three-dimensional laser scanner is affected.

Description

Subway tunnel deformation monitoring device and method based on three-dimensional laser scanning
Technical Field
The invention relates to the technical field of monitoring devices, in particular to a subway tunnel deformation monitoring device and method based on three-dimensional laser scanning.
Background
After the subway tunnel is built, the subway tunnel can be deformed to a certain extent due to the influence of various factors such as train operation, structural aging and the like, for example, the situation that the top of the tunnel collapses and the like, so that the state of the subway tunnel needs to be monitored at high frequency in order to solve the influence of deformation driving of the subway tunnel.
The current three-dimensional laser scanner that can use monitors subway tunnel deformation condition, and three-dimensional laser scanner installs on the chassis, and the chassis both ends are provided with the rail wheel, can just drive three-dimensional laser scanner and remove along the rail for monitoring process is comparatively convenient, but this in-process can not carry out the position to three-dimensional laser scanner when the monitoring of optional position, and three-dimensional laser scanner is relatively poor along the stability of rail removal in-process, leads to three-dimensional laser scanner later monitoring's data to exist the deviation.
The main reason for the occurrence of the problems is that after the three-dimensional laser scanner is moved to the position where deformation monitoring is required by the subway tunnel through the underframe and the rail wheels, the underframe and the rail are in a relatively movable state, when the three-dimensional laser scanner is touched by external force in the monitoring process, the underframe is moved, so that the monitoring position of the three-dimensional laser scanner is changed, and the accuracy of fixed point monitoring data of the three-dimensional laser scanner is affected;
in addition, granular impurities are easy to exist on a rail, when the rail wheel moves on the rail, the rail wheel is easy to be blocked by the granular impurities, and the rail wheel can vibrate in the process of contacting with the granular impurities to influence the stability of the setting of the three-dimensional laser scanner at the underframe, and aiming at the situation, the subway tunnel deformation monitoring device and the subway tunnel deformation monitoring method based on the three-dimensional laser scanning are provided.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention discloses a subway tunnel deformation monitoring device and a subway tunnel deformation monitoring method based on three-dimensional laser scanning, which are used for solving the problems that the three-dimensional laser scanner cannot be limited in position during monitoring at any position in the prior art, and the stability of the three-dimensional laser scanner in the moving process along a rail is poor, so that deviation exists in data monitored at the later stage of the three-dimensional laser scanner.
(II) technical scheme
The invention aims at achieving the purpose, and the subway tunnel deformation monitoring device and the subway tunnel deformation monitoring method based on three-dimensional laser scanning are achieved through the following technical scheme that the subway tunnel deformation monitoring device comprises a movable rod, a chassis, a rail wheel and a supporting seat, wherein the movable rod is arranged at the lower part of the chassis in a rotating mode, the rail wheel is fixedly connected to two ends of the movable rod, the supporting seat is connected to the top end face of the movable rod in a sliding mode, the three-dimensional laser scanner is arranged on the top end face of the supporting seat, and a locking mechanism for locking the position of the chassis is arranged on the bottom end face of the chassis;
the locking mechanism comprises a fixed box fixedly arranged on the end face of the bottom of the underframe, a toothed ring is fixedly connected to the outer wall of one end of the movable rod, which is positioned inside the fixed box, a bidirectional threaded rod is arranged in the fixed box in a rotating mode, two groups of movable frames are sleeved on the outer wall threads of the bidirectional threaded rod, and fixed teeth used for being clamped with the outer wall of the toothed ring are fixedly connected to the inner wall of each movable frame.
Preferably, the movable frame is sleeved outside the movable rod, two groups of fixing plates are fixedly connected to the inner bottom of the fixing box, and the bidirectional threaded rod is rotatably connected between the two groups of fixing plates.
Preferably, limiting holes are formed in the upper end and the lower end of the movable frame, and one end, away from the fixed teeth, of the movable frame is sleeved on the outer wall of the fixed plate in a limiting mode through the limiting holes.
Preferably, the outer wall fixedly connected with first bevel gear of two-way threaded rod, the outer wall meshing of first bevel gear has the second bevel gear, one side fixedly connected with fixing screw of second bevel gear, the one end rotation of fixing screw sets up the side at the fixed box, the one end outer wall that fixing screw extends to the fixed box outside is provided with fixation nut.
Preferably, the both ends of chassis all are provided with the clearance mechanism, the clearance mechanism is used for the clearance of rail outer wall impurity, the clearance mechanism is including rotating the connecting rod that sets up at the chassis both ends respectively, the one end of connecting rod is provided with the cleaning head that is used for impurity to clear away, the outer wall of connecting rod is provided with the connecting belt that is used for with movable rod linkage.
Preferably, a group of connection boxes are fixedly connected to the two ends of the underframe respectively, one ends of the connection boxes are sleeved outside the movable rod, and the connection belts are located inside the connection boxes.
Preferably, an air cylinder used for the supporting seat and the left-right movement of the three-dimensional laser scanner on the top end surface of the supporting seat is arranged in the underframe.
S1, placing a chassis and a supporting seat on a subway rail through a rail wheel, then installing a three-dimensional laser scanner on the top end surface of the supporting seat, and then starting the three-dimensional laser scanner to enable the three-dimensional laser scanner to perform planar three-dimensional scanning on the interior of a subway tunnel, performing site splicing, calibration, adjustment and the like by using self-contained software to obtain high-precision high-density point cloud data, and comparing the data with original data to obtain analysis of deformation quantity in the tunnel so as to achieve the purpose of monitoring;
s2, when the rail wheel drives the three-dimensional laser scanner to move along the rail, under the connection action of the connecting belt, the connecting rod is driven to rotate, and then the cleaning head arranged at one end of the connecting rod is driven to rotate, so that impurities and the like on the moving path of the rail wheel are removed by the cleaning head;
s3, when the three-dimensional laser scanner is placed at any position, the fixing screw rod arranged on the side face of the rotatable fixing box drives the second bevel gear to rotate, and the second bevel gear drives the first bevel gear meshed with the second bevel gear to rotate, so that the bidirectional threaded rod connected with the first bevel gear rotates, and the fixing teeth arranged on the inner walls of the two groups of movable frames are clamped on the outer wall of the toothed ring arranged on the outer wall of the movable rod under the action of threaded connection, so that the movable rod and the rail wheel connected with the movable rod are fixed, and the three-dimensional laser scanner can be stably positioned at one position to monitor the deformation condition of the subway tunnel.
The invention discloses a subway tunnel deformation monitoring device and a method based on three-dimensional laser scanning, which have the following beneficial effects,
1. according to the subway tunnel deformation monitoring device and the subway tunnel deformation monitoring method based on three-dimensional laser scanning, the fixed box is arranged on the end face of the bottom of the underframe, the bidirectional threaded rod capable of driving the movable frame to move is arranged in the fixed box, so that fixed teeth arranged on the inner wall of the movable frame are clamped with the toothed ring arranged on the outer wall of the movable rod, the underframe and the rail are connected and fixed, and position change of the underframe and the three-dimensional laser scanner arranged at the underframe under the action of external force is avoided, and the accuracy of fixed point monitoring data of the three-dimensional laser scanner is affected.
2. According to the subway tunnel deformation monitoring device and the subway tunnel deformation monitoring method based on three-dimensional laser scanning, the fixing screw is arranged on one side of the fixing box, one end of the fixing screw can be convenient for operation of staff, the bevel gear capable of driving the bidirectional threaded rod to rotate is arranged on the other end of the fixing screw, and therefore locking operation of the underframe and the rail wheel is convenient.
3. According to the subway tunnel deformation monitoring device and the subway tunnel deformation monitoring method based on the three-dimensional laser scanning, the two sides of the two groups of track wheels on the same side of the chassis are respectively provided with the cleaning heads, so that no matter the chassis is pushed to move forwards or backwards, the cleaning heads can clean impurities adhered to the rail, vibration of the chassis and the three-dimensional laser scanner arranged at the chassis is reduced, and damage to the track wheels is avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a movable rod and a fixed box according to the present invention;
FIG. 3 is a schematic view of a connecting box and a cleaning head according to the present invention;
FIG. 4 is a schematic view of the structure of the fixing case and the fixing screw of the present invention;
FIG. 5 is a sectional view showing the internal structure of the fixing case of the present invention;
FIG. 6 is a schematic view of the structure of the bi-directional threaded rod, bevel gear and moving frame of the present invention;
FIG. 7 is a schematic view of the structure of the fixed box, the movable rod and the gears of the present invention;
FIG. 8 is a schematic view of a moving frame, a movable bar and a gear structure according to the present invention;
FIG. 9 is an enlarged view of the structure of FIG. 3A in accordance with the present invention;
FIG. 10 is a schematic view of a connecting rod and cleaning head according to the present invention;
fig. 11 is a schematic view of the structure of the connection box and the chassis of the present invention.
In the figure, 1, a chassis; 101. a movable rod; 102. a rail wheel; 103. a support base; 104. a cylinder; 2. a three-dimensional laser scanner; 3. a locking mechanism; 301. a fixed box; 302. a fixing plate; 303. a two-way threaded rod; 304. a moving frame; 305. a fixed tooth; 306. a toothed ring; 307. a limiting hole; 4. a first bevel gear; 401. a second bevel gear; 402. a fixed screw; 403. a fixing nut; 5. a cleaning mechanism; 501. a connection box; 502. a connecting rod; 503. a cleaning head; 504. and a connecting belt.
Detailed Description
The embodiment of the invention discloses a subway tunnel deformation monitoring device and a subway tunnel deformation monitoring method based on three-dimensional laser scanning, as shown in fig. 1-11, in order to make the purposes, technical schemes and advantages of the embodiment of the invention clearer, the technical schemes of the embodiment of the invention are clearly and completely described below by means of the embodiment in combination with the drawings in the invention.
The subway tunnel deformation monitoring device based on three-dimensional laser scanning and the method thereof are shown in fig. 1-11, the subway tunnel deformation monitoring device based on three-dimensional laser scanning comprises a movable rod 101 which is rotatably arranged at the lower part of the bottom frame 1, rail wheels 102 are fixedly connected to two ends of the movable rod 101, a supporting seat 103 is slidably connected to the top end face of the movable rod 101, a three-dimensional laser scanner 2 is arranged on the top end face of the supporting seat 103, an air cylinder 104 used for the supporting seat 103 and the left and right movement of the three-dimensional laser scanner 2 on the top end face of the supporting seat 103 is arranged in the bottom frame 1, the three-dimensional laser scanner 2 is a three-dimensional laser scanner 2 with the model of IMAGER5010 in Germany, the three-dimensional laser scanner performs planar three-dimensional scanning on the inside of a subway tunnel, site splicing, calibration, adjustment and the like are carried out by adopting self-contained software to obtain high-precision high-density point cloud data, and analysis of deformation in the tunnel is obtained by comparing the data with original data.
The bottom end face of the chassis 1 is provided with a locking mechanism 3 for locking the position of the chassis 1, the locking mechanism 3 comprises a fixed box 301 fixedly arranged on the bottom end face of the chassis 1, one end outer wall of the movable rod 101, which is located inside the fixed box 301, is fixedly connected with a toothed ring 306, a bidirectional threaded rod 303 is rotatably arranged inside the fixed box 301, two groups of movable frames 304 are sleeved on the outer wall of the bidirectional threaded rod 303 in a threaded mode, fixed teeth 305 which are used for being clamped with the outer wall of the toothed ring 306 are fixedly connected to the inner wall of the two groups of movable frames 304, the movable frames 304 are sleeved on the outer portion of the movable rod 101 in a sleeved mode, two groups of fixed plates 302 are fixedly connected to the inner bottom of the fixed box 301, the bidirectional threaded rod 303 is rotatably connected between the two groups of fixed plates 302, limiting holes 307 are formed in the upper end and the lower end of the movable frame 304, one end, which is far away from the fixed teeth 305, of the movable frame 304 is in a limiting sleeved on the outer portion of the fixed plates 302 through the limiting holes 307, two groups of threaded rods 303 are formed in a threaded mode, and the outer walls of the bidirectional threaded rod 303 are oppositely arranged in a threaded mode, and when the bidirectional threaded rod 303 is rotated, the two groups of the bidirectional threaded rod 303 is externally arranged, and the two groups of movable frames 304 can move towards two sides or the middle.
The outer wall fixedly connected with first bevel gear 4 of two-way threaded rod 303, the outer wall meshing of first bevel gear 4 has second bevel gear 401, one side fixedly connected with fixing screw 402 of second bevel gear 401, the one end rotation of fixing screw 402 sets up the side at fixed box 301, the spacing rotation of fixing screw 402 is in one side of fixed box 301, the fixing screw 402 rotates the in-process promptly, can not the on-line position change, the fixing screw 402 extends to the outside one end outer wall of fixed box 301 and is provided with fixation nut 403.
The both ends of chassis 1 all are provided with the clearance mechanism 5, the clearance mechanism 5 is used for the clearance of rail outer wall impurity, the clearance mechanism 5 is including rotating the connecting rod 502 that sets up at chassis 1 both ends respectively, the one end of connecting rod 502 is provided with the cleaning head 503 that is used for impurity to clear away, the outer wall of connecting rod 502 is provided with the connecting belt 504 that is used for with movable rod 101 linkage, the both ends of chassis 1 are a set of connection box 501 respectively fixedly connected with, and the one end of connection box 501 cup joints the outside that sets up at movable rod 101, connecting belt 504 is located the inside of connection box 501, the both sides of two sets of rail wheels 102 that are located chassis 1 and one side are provided with a set of cleaning head 503 respectively, make no matter promote chassis 1 to remove forward or backward, cleaning head 503 can clear up the impurity of rail department adhesion earlier, reduce chassis 1's vibration, also avoid rail wheel 102's damage.
In view of the above-mentioned, it is desirable,
before monitoring the deformation condition of the subway tunnel, firstly, the underframe 1 and the supporting seat 103 are placed on the subway track through the rail wheels 102, then the three-dimensional laser scanner 2 is installed on the top end face of the supporting seat 103, and then, the underframe 1 is pushed to enable the underframe 1 to move along the subway track through the rail wheels 102 so as to enable the three-dimensional laser scanner 2 to move to a position required to be monitored in the subway tunnel.
And simultaneously, when the rail wheel 102 drives the three-dimensional laser scanner 2 to move along the rail, the movable rod 101 rotates, and at the moment, under the connecting action of the connecting belt 504, the connecting rod 502 connected with the movable rod 101 rotates equally along with the movable rod, so that the cleaning head 503 arranged at one end of the connecting rod 502 is driven to rotate, and impurities and the like on the moving path of the rail wheel 102 are removed by the cleaning head 503.
Further, after the three-dimensional laser scanner 2 moves to the position required to be monitored in the subway tunnel through the chassis 1 and the rail wheel 102, the fixing screw 402 arranged on the side surface of the fixing box 301 is rotated at this time, the fixing screw 402 drives the second bevel gear 401 arranged at one end of the fixing screw to rotate, and the second bevel gear 401 drives the first bevel gear 4 meshed with the second bevel gear to rotate, so that the bidirectional threaded rod 303 connected with the first bevel gear 4 rotates, and then under the action of threaded connection, the two groups of moving frames 304 and the fixing teeth 305 arranged on the inner wall of the moving frames 304 simultaneously move towards the middle.
Further, after the fixed teeth 305 disposed on the inner wall of the moving frame 304 are clamped with the toothed ring 306 disposed on the outer wall of the moving rod 101, the rotation of the fixing screw 402 can be stopped, and accordingly, the two groups of fixing nuts 403 disposed on the outer wall of the fixing screw 402 are rotated to lock the fixing screw 402, so that the moving rod 101 and the fixing box 301 are fixedly connected, the moving rod 101 and the rail wheel 102 connected with the moving rod 101 are fixed, and the three-dimensional laser scanner 2 can be stably located at any position of the rail to monitor the deformation condition of the subway tunnel.
In addition, when the moving frame 304 moves along the outer wall of the bidirectional threaded rod 303, the moving frame 304 performs a limiting sliding along the outer wall of the fixing plate 302 provided inside the fixing box 301 through the limiting hole 307 provided at one end of the moving frame 304, so that the moving track of the moving frame 304 is stable.
Further, after the positions of the underframe 1 and the supporting seat 103 used for the three-dimensional laser scanner 2 are fixed, the three-dimensional laser scanner 2 is started, so that the three-dimensional laser scanner 2 performs planar three-dimensional scanning on the inside of the subway tunnel, site splicing, calibration, adjustment and the like are performed by using self-contained software to obtain high-precision high-density point cloud data, and analysis of deformation in the tunnel is obtained by comparing the data with original data, so that the monitoring purpose is achieved.
Finally, after the monitoring of the deformation inside the subway tunnel is completed, the three-dimensional laser scanner 2 may be turned off and the chassis 1 is moved along the rail so that the three-dimensional laser scanner 2 moves out of the inside of the subway tunnel through the chassis 1 and the rail wheels 102.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a subway tunnel deformation monitoring devices based on three-dimensional laser scanning, includes chassis (1) rotation setting in movable rod (101) of chassis (1) lower part, both ends of movable rod (101) all fixedly connected with rail wheel (102), the top terminal surface sliding connection of movable rod (101) has supporting seat (103), the top terminal surface of supporting seat (103) is provided with three-dimensional laser scanner (2), its characterized in that, the bottom terminal surface of chassis (1) is provided with locking mechanical system (3) that are used for chassis (1) position locking;
the locking mechanism (3) comprises a fixed box (301) fixedly arranged on the end face of the bottom of the underframe (1), a toothed ring (306) is fixedly connected to the outer wall of one end of the movable rod (101) positioned inside the fixed box (301), a bidirectional threaded rod (303) is arranged in the fixed box (301) in a rotating mode, two groups of movable frames (304) are sleeved on the outer wall of the bidirectional threaded rod (303) in a threaded mode, and fixed teeth (305) used for being clamped with the outer wall of the toothed ring (306) are fixedly connected to the inner wall of the movable frames (304).
2. The subway tunnel deformation monitoring device based on three-dimensional laser scanning according to claim 1, wherein the movable frame (304) is sleeved outside the movable rod (101), two groups of fixed plates (302) are fixedly connected to the inner bottom of the fixed box (301), and the bidirectional threaded rod (303) is rotatably connected between the two groups of fixed plates (302).
3. The subway tunnel deformation monitoring device based on three-dimensional laser scanning according to claim 2, wherein limiting holes (307) are formed in the upper end and the lower end of the movable frame (304), and one end, far away from the fixed teeth (305), of the movable frame (304) is in limiting sleeve joint with the outer wall of the fixed plate (302) through the limiting holes (307).
4. A subway tunnel deformation monitoring device based on three-dimensional laser scanning according to claim 3, characterized in that, the outer wall fixedly connected with first bevel gear (4) of bi-directional threaded rod (303), the outer wall meshing of first bevel gear (4) has second bevel gear (401), one side fixedly connected with fixing screw (402) of second bevel gear (401), the one end rotation setting of fixing screw (402) is in the side of fixed box (301), the one end outer wall that fixing screw (402) extends to the fixed box (301) outside is provided with fixation nut (403).
5. The subway tunnel deformation monitoring device based on three-dimensional laser scanning according to claim 1, wherein the two ends of the chassis (1) are provided with cleaning mechanisms (5), the cleaning mechanisms (5) are used for cleaning impurities on the outer wall of a rail, the cleaning mechanisms (5) comprise connecting rods (502) which are respectively arranged at the two ends of the chassis (1) in a rotating mode, one ends of the connecting rods (502) are provided with cleaning heads (503) used for cleaning impurities, and the outer wall of the connecting rods (502) is provided with connecting belts (504) used for being linked with the movable rods (101).
6. The subway tunnel deformation monitoring device based on three-dimensional laser scanning according to claim 5, wherein a group of connecting boxes (501) are fixedly connected to two ends of the underframe (1) respectively, one end of each connecting box (501) is sleeved outside the movable rod (101), and the connecting belt (504) is located inside each connecting box (501).
7. The subway tunnel deformation monitoring device based on three-dimensional laser scanning according to claim 1 is characterized in that an air cylinder (104) used for supporting a seat (103) and moving left and right of a three-dimensional laser scanner (2) on the top end surface of the supporting seat (103) is arranged in the bottom frame (1).
8. The method for monitoring the deformation of the subway tunnel according to any one of claims 1 to 7, wherein,
s1, placing a chassis (1) and a supporting seat (103) on a subway rail through a rail wheel (102), then installing a three-dimensional laser scanner (2) on the top end surface of the supporting seat (103), and then starting the three-dimensional laser scanner (2), so that the three-dimensional laser scanner (2) performs planar three-dimensional scanning on the interior of a subway tunnel, and performing site splicing, calibration, adjustment and the like by using self-contained software to obtain high-precision high-density point cloud data, and comparing the data with original data to obtain analysis of deformation quantity in the tunnel so as to achieve the purpose of monitoring;
s2, when the rail wheel (102) drives the three-dimensional laser scanner (2) to move along the rail, under the connection action of the connecting belt (504), the connecting rod (502) is driven to rotate, and then the cleaning head (503) arranged at one end of the connecting rod (502) is driven to rotate, so that impurities and the like on the moving path of the rail wheel (102) are removed by the cleaning head (503);
s3, when three-dimensional laser scanner (2) are placed in optional position, fixed screw (402) that rotatable fixed box (301) side set up, fixed screw (402) drive second bevel gear (401) rotate, second bevel gear (401) drive rather than first bevel gear (4) of meshing rotate, thereby make the bi-directional threaded rod (303) that are connected with first bevel gear (4) rotate, make under threaded connection' S effect, fixed tooth (305) joint that two sets of movable frame (304) inner wall set up is at the outer wall of ring gear (306) that movable rod (101) outer wall set up, so that it is fixed to movable rod (101) and rail wheel (102) that are connected with movable rod (101), make three-dimensional laser scanner (2) can be located a position steadily and monitor subway tunnel deformation condition.
CN202311563482.7A 2023-11-21 2023-11-21 Subway tunnel deformation monitoring device and method based on three-dimensional laser scanning Pending CN117601911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311563482.7A CN117601911A (en) 2023-11-21 2023-11-21 Subway tunnel deformation monitoring device and method based on three-dimensional laser scanning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311563482.7A CN117601911A (en) 2023-11-21 2023-11-21 Subway tunnel deformation monitoring device and method based on three-dimensional laser scanning

Publications (1)

Publication Number Publication Date
CN117601911A true CN117601911A (en) 2024-02-27

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ID=89945611

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Application Number Title Priority Date Filing Date
CN202311563482.7A Pending CN117601911A (en) 2023-11-21 2023-11-21 Subway tunnel deformation monitoring device and method based on three-dimensional laser scanning

Country Status (1)

Country Link
CN (1) CN117601911A (en)

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