CN109900229B - Resistance triggering type telescopic movable device for measuring tunnel segment dislocation - Google Patents

Resistance triggering type telescopic movable device for measuring tunnel segment dislocation Download PDF

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Publication number
CN109900229B
CN109900229B CN201910323783.XA CN201910323783A CN109900229B CN 109900229 B CN109900229 B CN 109900229B CN 201910323783 A CN201910323783 A CN 201910323783A CN 109900229 B CN109900229 B CN 109900229B
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leveling
measuring
spring
dislocation
glass tube
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CN109900229A (en
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邹宝平
张铭儿
张佳莹
张泽峰
张昊泽
谢况琴
姜茗耀
刘治平
罗战友
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Zhejiang Lover Health Science and Technology Development Co Ltd
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Zhejiang Lover Health Science and Technology Development Co Ltd
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Abstract

The application belongs to the technical field of subway tunnel shield segment assembly construction, and relates to a resistance triggering type telescopic movable device for measuring tunnel segment dislocation, which comprises a metal shell, a leveling and movable adsorption system and an embedded measurement system; the embedded measuring system is arranged in the metal shell and used for indirectly measuring the height difference between the splicing shield segments, and the leveling and moving adsorption system is arranged at the lower part of the metal shell and used for leveling and moving adsorption of the whole device. Specifically, the piston is pushed by the booster to drive the water tank to enter the glass tube, and the dislocation between shield segment rings is quantitatively and accurately measured based on the water level change in the glass tube; the whole device is adsorbed on the inner wall of the dislocation measuring point of the shield segment by adopting the sucker, so that movable adsorption of dislocation parts of different segments is realized; the camera is also arranged on the positioning pin so as to realize the real-time extraction of the image information of each ring dislocation quantity of the shield segment, and the image information is used as an important reference basis for segment dislocation maintenance information.

Description

Resistance triggering type telescopic movable device for measuring tunnel segment dislocation
Technical Field
The application belongs to the technical field of subway tunnel shield segment assembly construction, and particularly relates to a resistance trigger type telescopic movable device for measuring tunnel segment dislocation.
Background
The urban subway tunnel shield engineering mainly utilizes a bolt connection method to assemble all ring pipe pieces, pipe piece dislocation easily occurs in the process of tunneling and splicing the tunnel shield in a curve section, and is completed by the manufacturing error of the shield pipe pieces and the assembly of the shield pipe pieces by worker operation.
In the normal operation process of the existing subway tunnel engineering, due to the gravity action of an upper structure and the reciprocating cyclic vibration after the tunnel is in traffic, bolts between shield segments are loosened, and relative displacement is caused between ring segments of the shield, so that tunnel leakage is caused. The dislocation judgment between the prior operation tunnel and each ring canal slice of the construction tunnel does not have quantitative accurate measurement equipment, and the evaluation is mainly carried out on site by relying on engineering experience of engineering technicians, or the measurement is carried out by utilizing a simple measuring ruler, so that the dislocation at the top of the tunnel cannot be accurately measured due to the limitation of the height of the tunnel, and the evaluation of the stability of the tunnel is very unfavorable.
The method for extracting the staggered joint staggering amount of the shield tunnel based on the three-dimensional scanning technology comprises the main steps of extracting longitudinal joint position information between adjacent segments according to a tunnel inner wall orthographic image obtained by three-dimensional laser scanning, setting a tangent plane perpendicular to a central axis of a tunnel lining ring, extracting point sets of the tunnel lining ring within a certain distance range on two sides of the longitudinal joint tangent plane of the adjacent segments, respectively projecting the point sets on two sides of the tangent plane onto the tangent plane to obtain two section slices, carrying out data inspection on arc segments on the section slices, fitting arcs on the two section slices after rough difference points are removed, and calculating the staggered amount of the adjacent arc segments at the longitudinal joint along the radial direction. However, the method is greatly influenced by human factors, and the quantitative evaluation of the dislocation between two loop chips cannot be rapidly performed.
Chinese patent CN104713435A section of jurisdiction stagger platform measures special chi, including measuring part and locating part, locating part is located measuring part right side, locating part includes horizontal blend stop and perpendicular separation blade, perpendicular separation blade vertical fixation is on the left end face of horizontal blend stop, measuring part includes the draw-in groove, dipperstick and locking bolt, the dipperstick sets up in the draw-in groove and can reciprocate for the draw-in groove, be provided with the through-hole on the draw-in groove lateral wall, the screw rod of locking bolt passes the through-hole tip and supports on the lateral wall of dipperstick, the draw-in groove bottom is in the coplanar with the lower surface of horizontal blend stop, but this special chi is because influenced by tunnel height restriction, can not measure the wrong platform of tunnel top and certain altitude range, and can not acquire the dislocation image data of measurement position in real time.
Chinese patent CN105387801B discloses a subway tunnel segment dislocation amount detection method, which comprises the following steps: inputting a three-dimensional data matrix of the depth image acquired by Kinect equipment, and preprocessing the data; converting the depth map into a binary image which can be processed by a digital image technology by adopting a double diagonal difference algorithm; noise in the binary image is processed by adopting a joint denoising algorithm, and meanwhile, for the bolt holes, special noise such as grouting holes is removed based on shape characteristics; extracting the staggered frameworks by using a refinement algorithm, identifying staggered lines of different types by using a global search algorithm, finding the staggered positions on the corresponding depth image, and calculating the segment staggered quantity. However, the method is greatly affected by human factors, the dislocation between two loop chips cannot be evaluated quantitatively and rapidly, and the dislocation image data of the measured part cannot be obtained in real time.
Chinese patent CN204691793U hand-held type subway tunnel segment dislocation detection device contains Kinect equipment, first rotary joint, camera, bracing piece, handheld telescopic link, pull ring, braces, switch board, battery pack, GPS locator, second rotary joint, flexible regulating spindle, panel computer, support frame. However, the device cannot move in any height and any range of the tunnel, can not rapidly quantitatively evaluate the dislocation between two ring pipe slices, and cannot acquire dislocation image data of a measuring part in real time.
Disclosure of Invention
The application aims to overcome the defects of the prior art, and provides a resistance trigger type telescopic movable device for measuring the fault of a tunnel segment, which has the advantages of accurate measurement, rapidness and movability, low cost, good universality, high efficiency and simplicity in operation.
In order to achieve the above object, the present application provides the following technical solutions:
a resistance triggering type telescopic movable device for measuring tunnel segment dislocation comprises a metal shell, a leveling and movable adsorption system and an embedded measuring system; the embedded measuring system is arranged in the metal shell and used for indirectly measuring the height difference between the splicing shield segments, and the leveling and moving adsorption system is arranged at the lower part of the metal shell and used for leveling and moving adsorption of the whole device;
the embedded measuring system comprises a cylindrical water tank, a piston, a propelling mechanism, a positioning mechanism and a displacement measuring mechanism; the water tank is arranged in the metal shell and used for containing water, a piston is arranged on the water surface, the diameter of the piston is the same as that of the water tank, and a pushing mechanism capable of moving up and down is arranged above the piston; the pushing mechanism is also connected with a positioning mechanism, and the positioning mechanism is used for respectively positioning the spliced two shield segments; the displacement measuring mechanism comprises a glass tube, and the water tank is communicated with the glass tube; the positioning mechanism sequentially reaches the spliced two shield segments under the pushing of the pushing mechanism, and meanwhile, the piston drives water in the water tank to flow into the glass tube under the pushing of the pushing mechanism, so that the change of the liquid level in the glass tube is measured through the displacement measuring mechanism, namely the height difference between the spliced shield segments is indirectly measured.
Further, the propelling mechanism comprises a booster, a gasket, a movable pointer, a first spring, a clamp spring and a fixed shell;
the fixed shell is of a cavity structure which penetrates up and down, is welded inside the metal shell and is positioned above the piston, and a movable pointer is nested in the fixed shell; the lower end of the movable pointer is conical and extends out of the fixed shell to be in contact with the piston, a booster is arranged above the movable pointer, a gasket is arranged between the booster and the movable pointer, a first spring is sleeved outside the movable pointer, and the upper end and the lower end of the first spring are limited through a clamp spring respectively.
The booster can be T-shaped, and comprises a transverse part and a vertical part which are connected with each other, wherein the transverse part of the T-shaped booster is positioned outside the metal shell, the vertical part of the T-shaped booster is penetrated at the top of the metal shell, and a hole can be formed in the top of the metal shell in order to facilitate the vertical part of the T-shaped booster to penetrate.
Further, the positioning mechanism comprises a telescopic fixed-point pin, a chute, a connecting track, a positioning pin and a positioning sensor;
the spout is vertical to be installed on metal casing's lateral wall, but scalable fixed point pin is installed on the spout with reciprocating, but scalable fixed point pin is connected with the booster through the connection track simultaneously, and scalable fixed point pin top installs the locating pin, installs positioning sensor below the locating pin.
Further, a camera is also installed on the positioning pin.
Further, the displacement measuring mechanism also comprises a pressure water film, a second spring and a displacement index meter;
a pressure water film which is horizontally arranged and a second spring which is vertically arranged are arranged in the glass tube, the upper end and the lower end of the second spring are respectively fixed at the upper end and the lower end of the glass tube, meanwhile, the second spring is connected with a displacement index table, and a power supply is arranged in the displacement index table; the water in the water tank flows into the glass tube through the pressure water film under the drive of the piston and generates current in the glass tube, and the current in the glass tube is detected through the displacement index meter so as to obtain the change of the liquid level in the glass tube.
Further, the leveling and moving adsorption system comprises a leveling water tank, wherein the leveling water tank is arranged at the center of the bottom of the metal shell, a partition plate which is horizontally arranged is arranged in the leveling water tank, water is filled in the upper part of the partition plate, four small holes which are uniformly arranged are formed in the partition plate, each small hole is respectively inserted with one guide pipe, the four guide pipes are sequentially arranged at 90 degrees, the four guide pipes are respectively communicated with a first antenna, shape memory alloy sheets are arranged between the guide pipes and the antennas, the shape memory alloy sheets are wound in the antennas in a net sheet mode, the shape memory alloy sheets are connected with a relay, and deformation of the shape memory alloy sheets is controlled through the relay; meanwhile, a circular groove is formed in the center of the bottom of the leveling water tank, and the leveling ball is placed in the circular groove and can roll at the bottom of the leveling water tank.
Further, the leveling and moving adsorption system further comprises leveling mechanisms, and a group of leveling mechanisms are arranged below each antenna;
the leveling mechanism comprises a pressure sensor, a rotary spring, a clockwork spring and a second motor; the pressure sensor is arranged at the inner bottom of the antenna, the antenna is connected with the spring through a rotary spring, and the spring is connected with the second motor; the spring is driven by the second motor to rotate the rotary spring, so that the whole device is driven to rotate by taking the antenna as the circle center.
Further, the leveling and moving adsorption system is also provided with moving adsorption mechanisms, and a group of moving adsorption mechanisms are arranged below each group of leveling mechanisms;
the movable adsorption mechanism comprises a vacuum negative pressure sensor, a sucker, a pressure pump carrier, a gas storage bag, an air supply conduit, a small gas conduit and a pressure pump; the sucking disc is arranged on the ground, the gas storage bag is arranged on the sucking disc and is communicated with the sucking disc through a small gas conduit, and a vacuum negative pressure sensor is arranged at the inner bottom of the cavity of the gas storage bag and used for detecting the vacuum degree of the sucking disc; the pressure pump carrier is internally provided with a pressure pump which is communicated with the air storage bag through an air supply conduit, and the pressure pump carrier is also internally provided with an air outlet hole and an air inlet hole respectively.
In the application, when gas enters, the gas enters the pressure pump carrier through the air inlet hole, then the pressure is increased by the pressure pump to enter the air supply conduit, the gas is stored and enters the gas storage bag, the gas storage bag is used for temporarily storing the gas, and the redundant gas enters the sucker from the small gas conduit. When the gas is exhausted, the gas in the sucker is exhausted through the small gas guide pipe, the gas storage bag, the gas supply guide pipe, the pressure pump and the gas outlet hole, and the sucker is in a vacuum state, so that the whole device can be adsorbed on the shield segment to be tested, which is a great advantage of the application, and the application can be particularly used for measuring point positions or higher positions which cannot be measured normally.
Further, the resistance triggering type telescopic movable device for measuring the tunnel segment dislocation also comprises Bluetooth equipment and a remote controller;
the remote controller is connected with the leveling and moving adsorption system and the embedded measurement system through Bluetooth equipment respectively to control the leveling and moving adsorption system and the embedded measurement system to work.
Further, relays can be installed in the leveling and mobile adsorption system and the embedded measurement system, and the leveling and mobile adsorption system and the embedded measurement system are connected with a remote controller through the relays and Bluetooth equipment.
Further, the remote controller is connected with the devices such as the engine, the pressure pump, the displacement index table, the camera and the like through Bluetooth devices, and controls the devices to work.
Further, the remote controller is also provided with an air pressure index meter, is also connected with the vacuum negative pressure sensor through Bluetooth equipment, and displays the vacuum degree of the sucker.
Further, the remote controller is also provided with a pressure index table, is also connected with the pressure sensor through Bluetooth equipment, and displays the pressure value at the antenna.
Further, a relay connected with the shape memory alloy sheet is also connected with a remote controller through Bluetooth equipment, and deformation of the shape memory alloy sheet is controlled through the remote controller.
Further, an air inlet switch is arranged on an air inlet of the pressure pump carrier, the air inlet switch is connected with a remote controller through Bluetooth equipment, and the air inlet is controlled to be opened and closed through the remote controller.
Further, the remote controller is further connected with the positioning sensor through the Bluetooth device, signals are transmitted to the remote controller after the positioning sensor senses that the positioning pin reaches a fixed point, and the remote controller drives the booster to drive the telescopic fixed point pin to extend downwards through the first motor.
Compared with the prior art, the application has the beneficial effects that:
(1) The booster 20 pushes the piston 27 to drive the water tank 28 into the glass tube 30, and the dislocation between shield segment rings is quantitatively and accurately measured based on the water level change in the glass tube.
(2) The whole device is adsorbed on the inner wall of the dislocation measuring point of the shield segment by combining a sucker, an air storage bag and a pressure pump so as to realize movable adsorption of dislocation parts of different segments; the gas can enter the air supply duct 13 through the air inlet hole 14 and then the pressure is increased by the pressure pump 3, the gas is stored and enters the air storage bag 5, the redundant gas further enters the sucker 2 from the small gas duct 15, and the gas is discharged out of the sucker 2 through the small gas duct 15, the air storage bag 5, the air supply duct 13, the pressure pump 3 and the air outlet hole 4, and the inside of the sucker reaches a vacuum state and is adsorbed at the segment to be detected.
(3) The camera 12 is arranged on the positioning pin 35, so that the real-time extraction of the image information of each ring dislocation quantity of the shield segment can be realized, and the image information can be used as an important reference basis for segment dislocation maintenance information.
(4) The application also has the characteristics of accurate measurement, rapidness, portability, low cost, good universality, high efficiency and simple operation.
Description of the drawings:
FIG. 1 is a cross-sectional view of a resistance triggered telescopic movable device for measuring a dislocation of a tunnel segment in an operating state according to an embodiment of the present application;
FIG. 2 is a left side view of a resistance triggered telescopic movable apparatus for measuring a dislocation of a tunnel segment according to an embodiment of the present application;
FIG. 3 is a right side view of a resistance triggered telescopic movable apparatus for measuring a dislocation of a tunnel segment according to an embodiment of the present application;
FIG. 4 is a bottom view of a resistance triggered telescopic movable apparatus for measuring dislocation of tunnel segments according to an embodiment of the present application;
FIG. 5 is a top view of a resistance triggered telescopic movable apparatus for measuring dislocation of tunnel segments according to an embodiment of the present application;
fig. 6 is a schematic diagram of a leveling process 1 of a resistance triggered telescopic movable device for measuring a dislocation of a tunnel segment according to an embodiment of the present application;
fig. 7 is a schematic diagram of a leveling process 2 of a resistance triggered telescopic movable device for measuring a dislocation of a tunnel segment according to an embodiment of the present application;
fig. 8 is a schematic diagram of a leveling process 3 of a resistance triggered telescopic movable device for measuring a dislocation of a tunnel segment according to an embodiment of the present application;
fig. 9 is a schematic diagram of an advancing process 1 of a resistance triggered telescopic movable apparatus for measuring a dislocation of a tunnel segment according to an embodiment of the present application;
fig. 10 is a schematic diagram of an advancing process 2 of a resistance triggered telescopic movable apparatus for measuring a dislocation of a tunnel segment according to an embodiment of the present application;
FIG. 11 is a schematic view of an advancing process 3 of a resistance triggered telescopic movable apparatus for measuring a dislocation of a tunnel segment according to an embodiment of the present application;
fig. 12 is a schematic diagram of a measurement process 1 of a resistance triggered telescopic movable apparatus for measuring a dislocation of a tunnel segment according to an embodiment of the present application;
fig. 13 is a schematic diagram of a measurement process 2 of a resistance triggered telescopic movable device for measuring a dislocation of a tunnel segment according to an embodiment of the present application;
fig. 14 is a schematic diagram of a measurement process 3 of a resistance triggered telescopic movable apparatus for measuring a dislocation of a tunnel segment according to an embodiment of the present application.
Wherein: a vacuum negative pressure sensor, 2 suction cups, 3 pressure pump carrier, 4 air outlet holes, 5 air storage bags, 6 pressure sensor, 7 Bluetooth equipment, 8 shape memory alloy sheet, 9 leveling water tank, 10 guide pipe, 11 leveling ball, 12 camera, 13 air supply guide pipe, 14 air inlet hole, 15 small air guide pipe, 16 spring, 17 rotating spring, 18 battery, 19 first motor, 20 booster, 21 telescopic fixed point pin, 22 chute, 23 first spring, 24 gasket, 25 clamp spring, 26 moving pointer, 27 piston, 28 water tank, 29 pressure water film, 30 glass tube, 31 connecting track, 32 second motor, 33 displacement index table, 34 second spring, 35 positioning pin, 36 positioning sensor, 37 fixed shell, 38 baffle plate, 39 pressure pump, 4001 first antenna, 4002 second antenna, 4003 third antenna, 4004 fourth antenna, 41 metal shell.
Detailed Description
The application will be further described with reference to examples of embodiments shown in the drawings to which
As shown in fig. 1 to 14, a resistance triggering type telescopic movable device for measuring the dislocation of tunnel pipe pieces comprises a metal shell 41, a bluetooth device 7, a leveling and movable adsorption system and an embedded measurement system; the embedded measurement system is arranged in the metal shell 41 and is a core part of the whole device, a leveling and moving adsorption system is arranged at the lower part of the metal shell 41, and Bluetooth equipment 7 is arranged at the top of the metal shell 41.
Further, the embedded measuring system comprises a cylindrical water tank 28, a piston 27, a pushing mechanism, a positioning mechanism, and a displacement measuring mechanism. The water tank 28 is arranged in the metal shell 41 and is used for containing water, the piston 27 is arranged on the water surface, the diameter of the piston 27 is the same as that of the water tank 28, a pushing mechanism capable of moving up and down is arranged above the piston 27 and moves up and down under the pushing of the pushing mechanism, meanwhile, the pushing mechanism is connected with the positioning mechanism, a horizontal branch pipe is arranged at the lower part of the water tank 28, and the tail end of the branch pipe is connected with the displacement measuring mechanism.
Further, the propelling mechanism comprises a booster 20, a gasket 24, a movable pointer 26, a first spring 23, a clamp spring 25 and a fixed shell 37; the fixed shell 37 is of a cavity structure penetrating up and down, is welded inside the metal shell 41 and is positioned above the piston 27, and the movable pointer 26 is nested in the fixed shell 37; the lower end of the movable pointer 26 is conical and extends out of the fixed shell 37 to contact the piston 27, the booster 20 is arranged above the movable pointer 26, the gasket 24 is arranged between the booster 20 and the movable pointer 26, the gasket 24 is used for buffering the force transmitted by the booster 20, the movable pointer 26 is sleeved with a first spring 23, the upper end and the lower end of the first spring 23 are respectively limited through a clamp spring 25, the clamp spring 25 positioned above is fixed below the gasket 24, and the clamp spring 25 positioned below is fixed at the bottom of the fixed shell 37. The booster 20 is connected to the first motor 19, and a relay and a battery 18 are provided in the first motor 19.
The booster 20 may be T-shaped, which includes a transverse portion and a vertical portion connected to each other, where the transverse portion of the T-shaped booster 20 is located outside the metal casing 41, and the vertical portion of the T-shaped booster 20 is disposed on the top of the metal casing 41 in a penetrating manner, so that a hole may be formed on the top of the metal casing 41 in order to facilitate the vertical portion of the T-shaped booster 20 to pass through.
Further, the positioning mechanism comprises a camera 12, a telescopic fixed point pin 21, a chute 22, a connecting track 31, a positioning pin 35 and a positioning sensor 36; the telescopic fixed point pin 21 is connected with the booster 20 through the connecting track 31, the chute 22 is vertically arranged on the outer side wall of the metal shell 41, the telescopic fixed point pin 21 is arranged on the chute 22 in a vertically movable mode, the locating pin 35 is arranged above the telescopic fixed point pin 21, the camera 12 is arranged above the locating pin 35, and the locating sensor 36 is arranged below the locating pin 35.
Further, the displacement measuring mechanism comprises a pressure water film 29, a glass tube 30, a second spring 34 and a displacement index meter; the tail end of the branched pipe of the water tank 28 is communicated with a vertically arranged glass pipe 30, the top of the glass pipe 30 is closed, and the bottom of the glass pipe is communicated with the branched pipe; the glass tube 30 is internally provided with a second spring 34 which is vertically arranged and a pressure water film 29 which is horizontally arranged, the upper end and the lower end of the second spring 34 are respectively fixed at the upper end and the lower end of the glass tube 30, meanwhile, the second spring 34 is connected with a displacement index table 33 which is arranged on the inner wall of a metal shell 41, a relay and a battery 18 are arranged in the displacement index table 33, and the battery 18, the second spring 34 and the displacement index table 33 are connected through a plurality of multicore conductive wires.
In the application, the booster 20 is driven to move downwards by the first motor 19, so that the movable pointer 26 is driven to push the piston 27 to move downwards, and water in the water tank 28 is driven to flow into the glass tube 30 through the pressure water film 29.
Further, the leveling and moving adsorption system comprises a leveling water tank 9, a leveling mechanism and a moving adsorption mechanism. The leveling water tank 9 is welded at the bottom center of the metal shell 41, a partition plate 38 which is horizontally arranged is arranged in the leveling water tank 9, water is filled in the upper part of the partition plate 38, four small holes which are uniformly arranged are formed in the partition plate 38, each small hole is respectively inserted with one guide pipe 10, the four guide pipes 10 are sequentially arranged at 90 degrees, the four guide pipes 10 are respectively communicated with a first antenna 4001, a second antenna 4002, a third antenna 4003 and a fourth antenna 4004 which are horizontally welded at the outer side of the leveling water tank 9, the outer side ends of the four antennas are all closed, the inner side ends are respectively communicated with the guide pipes 10, shape memory alloy sheets 8 are respectively arranged between the guide pipes and the antennas, the shape memory alloy sheets 8 are wound in the antennas in a net sheet mode, the shape memory alloy sheets 8 are connected with the relay, and deformation of the shape memory alloy sheets 8 is controlled through the relay; meanwhile, a circular groove is formed in the center of the bottom of the leveling water tank 9, and a leveling small ball 11 is placed in the circular groove and can roll at the bottom of the leveling water tank 9.
Further, a group of leveling mechanisms are arranged below each antenna, and a group of movable adsorption mechanisms are arranged below each group of leveling mechanisms.
Further, the leveling mechanism includes a pressure sensor 6, a rotary spring 17, a mainspring 16, and a second motor 32. The pressure sensor 6 is arranged at the inner bottom of the antenna, meanwhile, the antenna is connected with the spring 16 through a rotary spring 17, the rotary spring 17 is fixedly connected with the antenna through a bolt, the rotary spring 17 is fixedly connected with the spring 16 through a screw, meanwhile, the spring 16 is connected with a second motor 32, and a relay and a battery 18 are arranged in the second motor 32.
Further, the movable adsorption mechanism comprises a vacuum negative pressure sensor 1, a sucker 2, a pressure pump carrier 3, an air outlet 4, an air storage bag 5, an air supply conduit 13, an air inlet 14, a small air conduit 15 and a pressure pump 39. The sucker 2 is arranged on the ground, the air storage bag 5 is arranged on the sucker 2 and is communicated with the sucker 2 through a small air conduit 15, a vacuum negative pressure sensor 1 is arranged at the inner bottom of the cavity of the air storage bag 5 and is used for detecting the vacuum degree of the sucker 2, the air storage bag 5, the small air conduit 15, the sucker 2 and the ground can form a closed environment, and the small air conduit 15 is an air channel for connecting the sucker 2 and the air storage bag 5; the pressure pump carrier 3 is a cavity structure, wherein a pressure pump 39 is arranged, the pressure pump 39 is communicated with the air storage bag 5 through the air supply conduit 13, and an air outlet hole 4 and an air inlet hole 14 are respectively formed in the pressure pump carrier 3.
In the application, when gas enters, the gas enters the pressure pump carrier 3 through the gas inlet hole 14, then the pressure is increased by the pressure pump 39 to enter the gas supply conduit 13, the gas is stored into the gas storage bag 5, the gas storage bag 5 is used for temporarily storing the gas, and the redundant gas enters the sucker 2 from the small gas conduit 15. When the gas is discharged, the gas in the sucker 2 is discharged through the small gas guide pipe 15, the gas storage bag 5, the gas supply guide pipe 13, the pressure pump 39 and the gas outlet hole 4, and the sucker 2 is in a vacuum state, so that the whole device can be adsorbed on a shield segment to be tested, which is a great advantage of the application, and the application can be particularly used for measuring points or higher positions which cannot be measured normally.
Further, the spring 16 may be fixed to the air storage bag 5 by bolts.
In the application, the motor and the component can be connected by a plurality of rod-type multicore conductive wires.
Further, the resistance triggering type telescopic movable device for measuring the tunnel segment dislocation also comprises a remote controller, and the remote controller is connected with the equipment such as the engine, the pressure pump, the displacement index table 33, the camera 12 and the like through the Bluetooth equipment 7 and controls the equipment to work.
Further, an air pressure index table is further arranged on the remote controller, and the remote controller is further connected with the vacuum negative pressure sensor 1 through the Bluetooth equipment 7 and displays the vacuum degree of the sucker 2.
Further, a pressure index table is further arranged on the remote controller, and the remote controller is further connected with the pressure sensor 6 through the Bluetooth device 7 and displays the pressure value at the antenna.
Further, a relay connected to the shape memory alloy sheet 8 is also connected to a remote controller through a bluetooth device 7, and deformation of the shape memory alloy sheet 8 is controlled by the remote controller.
Further, an air inlet switch is arranged on an air inlet hole 14 of the pressure pump carrier 3, the air inlet switch is connected with a remote controller through Bluetooth equipment 7, and the opening and closing of the air inlet hole 14 is controlled through the remote controller.
Further, the remote controller is further connected with the positioning sensor 36 through the Bluetooth device 7, signals are transmitted to the remote controller after the positioning sensor 36 senses that the positioning pin 35 reaches a fixed point, and the remote controller drives the booster to drive the telescopic fixed point pin 21 to extend downwards through the first motor.
The application also provides a method for measuring the dislocation of the tunnel segment in the resistance triggering type telescopic movable manner, which comprises the following steps: .
S1, placing a resistance triggering type telescopic movable device for measuring the tunnel segment dislocation at a point to be measured;
s2, adsorbing the whole device at a point to be detected:
the pressure pump 39 is controlled to discharge the gas in the sucker 2 through the small gas conduit 15, the gas storage bag 5, the gas supply conduit 13 and the gas outlet hole 4, and the sucker 2 is in a vacuum state, so that the whole device is adsorbed at a measuring point;
s3, leveling device:
the core of the device is that the height difference is converted into the water level and liquid level difference, so the device must be adjusted to be horizontal to accurately measure. The device is initially placed at the shield segment to be tested and is not horizontal, and each pressure sensor 6 on the four antennae has different pressure values. The shape memory alloy sheet 8 has memory capacity and can maintain the shape for a certain time after deformation.
If the measured pressure value at the first antenna 4001 is larger, which indicates that the position is in low potential, a leveling ball 11 at a horizontal groove at the center of the device rolls towards the direction of the first antenna 4001, a relay controls the deformation of a shape memory alloy 8 in the second antenna 4002, the third antenna 4003 and the fourth antenna 4004, and water in a leveling water tank 9 flows into the second antenna 4002, the third antenna 4003 and the fourth antenna 4004 through a guide pipe 10 and the shape memory alloy 8 for device leveling; after the device is leveled, the pressure values on the four antennae are kept consistent, the leveling pellets 11 return to the round grooves, the shape memory alloy 8 also returns to the original shape, and the water stops flowing.
The leveling at the other three antennae is the same as the first antenna, and will not be described again.
S4, measuring the height difference:
the two spliced shield segments comprise a first shield segment and a second shield segment, and the method is used for measuring the height difference of the two shield segments.
The camera 12 is opened to start video recording, and the measurement points are recorded, so that the measurement points are confirmed after convenience;
starting the first motor 19 to drive the booster 20 to move downwards, so as to drive the movable pointer 26, the positioning pin 35 and the telescopic fixed point pin 21 to move downwards;
firstly, the booster 20 drives the positioning pin 35 to move downwards and reach a fixed point position, namely a first shield segment; meanwhile, the movable pointer 26 pushes the piston 27 downwards and drives water in the water tank 28 to flow into the glass tube 30 through the pressure water film 29, so that the liquid level in the glass tube 30 is changed, the liquid level in the glass tube 30 can be recorded as h1, and the value of the displacement index meter 33 is recorded; simultaneously, the first spring 23 is compressed to buffer the force transmitted by the booster 20 and prevent the excessive instantaneous force;
then, the positioning pin 35 is fixed, the booster continuously drives the telescopic fixed-point pin 21 to extend downwards and reach the second shield segment, meanwhile, the booster also drives the movable pointer 26 to continuously move downwards, the movable pointer 26 continuously pushes the piston 27 downwards and drives water in the water tank 28 to continuously flow into the glass tube 30 through the pressure water film 29, so that the liquid level in the glass tube 30 is changed again, the liquid level in the glass tube 30 can be recorded as h2, and the numerical value of the displacement index table 33 is recorded again; and (5) finishing the height difference measurement of one measuring point.
In the application, the positioning sensor 36 senses the position change on the positioning pin 35, the positioning sensor 36 has higher precision, and after the positioning pin 35 reaches the fixed point position, namely the measurement starting point, the positioning sensor 36 can immediately transmit a signal to the remote controller through the Bluetooth equipment 7, and the telescopic fixed point pin 21 is controlled to extend through the remote controller and reach the second shield segment.
In the application, the fixed point position of the locating pin 35 is the starting point of the height difference, and the elongation of the telescopic fixed point pin 21 is the height difference between the splicing shield segments.
In the present application, the water level in the glass tube 30 is determined by the embedded measuring device, and when the water in the water tank 28 flows into the glass tube 30 through the pressure water film 29, the liquid level in the glass tube 30 is changed, and the current I is generated in the glass tube 30; wherein the water in the glass tube 30 and the second spring 34 serve as a resistor R, the battery 18 provides a rated voltage U, and the rated voltage U, the resistivity ρ and the cross-sectional area S of the glass tube 30 are known, the current I can be obtained from a displacement index table, and the liquid level of the glass tube can be obtained to become h=us/ρ according to ohm' S law r=u/I and a resistance calculation formula r=ρh/S; and then the height difference=h2-h 1 between the splicing shield segments can be obtained according to the liquid level height change of the glass tube for two times.
S5, moving to the next measuring point for measurement:
after one measuring point is finished, the booster 20 is reversely pushed by the first motor 19 to return to the initial position, other components are driven to return to the initial state, and meanwhile, the water in the glass tube 30 flows back into the water tank 28 due to no pressure;
opening an air inlet switch of an air inlet hole 14 on the pressure pump carrier 3 below the first antenna, the second antenna and the fourth antenna, and enabling air to enter the sucker 2 through the air inlet hole 14, the pressure pump 39, the air supply conduit 13, the air storage bag 5 and the small air conduit 15; at the moment, the vacuum negative pressure sensor 1 detects that the gas value is increased, and the sucker 2 below the three antennae is separated from the shield segment; the sucking disc 2 below the third antenna is still in a vacuum state and is adsorbed on the shield segment;
starting a second engine 32 at the third antenna to tighten the spring 16, and enabling the spring 16 to rotate a rotary spring 17 to drive the whole device to rotate by taking the third antenna as a circle center, after rotating for a certain angle, increasing the gas pressure values of suction cups below the first antenna, the second antenna and the fourth antenna, and enabling the suction cups below the first antenna, the second antenna and the fourth antenna to be adsorbed on a shield segment;
repeating the steps, so that the whole device rotates and advances by taking other feelers as circle centers, and the whole device advances to the next measuring point; when the next measuring point is reached, the positioning pin 35 touches the elevation starting point of the measuring point, the measuring step is repeated, and the measuring is completed after the measuring step is carried out for one circle in the whole tunnel.
The above description is only illustrative of the preferred embodiments of the application and is not intended to limit the scope of the application in any way. Any alterations or modifications of the application, which are obvious to those skilled in the art based on the teachings disclosed above, are intended to be equally effective embodiments, and are intended to be within the scope of the appended claims.

Claims (6)

1. A flexible mobile device of resistance triggering formula for measuring tunnel segment dislocation is characterized in that: comprises a metal shell (41), a leveling and mobile adsorption system and an embedded measurement system; the embedded measuring system is arranged in the metal shell (41) and used for indirectly measuring the height difference between the splicing shield segments, and the leveling and moving adsorption system is arranged at the lower part of the metal shell (41) and used for leveling and moving adsorption of the whole device;
the embedded measuring system comprises a cylindrical water tank (28), a piston (27), a propelling mechanism, a positioning mechanism and a displacement measuring mechanism; the water tank (28) is arranged in the metal shell (41) and used for containing water, the piston (27) is arranged on the water surface, the diameter of the piston (27) is the same as that of the water tank (28), and the pushing mechanism capable of moving up and down is arranged above the piston (27); the pushing mechanism is also connected with a positioning mechanism, and the positioning mechanism is used for respectively positioning the spliced two shield segments; the displacement measuring mechanism comprises a glass tube (30), and the water tank (28) is communicated with the glass tube (30); the positioning mechanism sequentially reaches the spliced two shield segments under the pushing of the pushing mechanism, and meanwhile, the piston (27) drives water in the water tank (28) to flow into the glass tube (30) under the pushing of the pushing mechanism, so that the change of the liquid level in the glass tube (30) is measured through the displacement measuring mechanism, namely the height difference between the spliced shield segments is indirectly measured;
the leveling and movable adsorption system comprises a leveling water tank (9), a leveling mechanism and a movable adsorption mechanism;
the leveling water tank (9) is arranged at the bottom center of the metal shell (41), a partition plate (38) which is horizontally arranged is arranged in the leveling water tank (9), water is contained at the upper part of the partition plate (38), four small holes which are uniformly arranged are formed in the partition plate (38), each small hole is respectively inserted with one guide pipe (10), the four guide pipes (10) are sequentially arranged at 90 degrees, the four guide pipes (10) are respectively communicated with one antenna, shape memory alloy sheets (8) are arranged between the guide pipes and the antennas, the shape memory alloy sheets (8) are wound in the antennas in a net sheet mode, the shape memory alloy sheets (8) are connected with a relay, and deformation of the shape memory alloy sheets (8) is controlled through the relay; meanwhile, a circular groove is formed in the center of the bottom of the leveling water tank (9), and a leveling small ball (11) is placed in the circular groove and can roll at the bottom of the leveling water tank (9);
a group of leveling mechanisms are arranged below each antenna of the leveling mechanism;
the leveling mechanism comprises a pressure sensor (6), a rotary spring (17), a clockwork spring (16) and a second motor (32); the pressure sensor (6) is arranged at the inner bottom of the antenna, the antenna is connected with the spring (16) through a rotary spring (17), and the spring (16) is connected with the second motor (32); the spring (16) is driven by the second motor (32) to rotate the rotary spring (17), so that the whole device is driven to rotate by taking the antenna as the center of a circle;
a group of movable adsorption mechanisms are arranged below each group of leveling mechanisms;
the movable adsorption mechanism comprises a vacuum negative pressure sensor (1), a sucker (2), a pressure pump carrier (3), an air storage bag (5), an air supply conduit (13), a small air conduit (15) and a pressure pump (39); the sucker (2) is arranged on the ground, the gas storage bag (5) is arranged on the sucker (2) and is communicated with the sucker (2) through a small gas conduit (15), and a vacuum negative pressure sensor (1) is arranged at the inner bottom of the cavity of the gas storage bag (5) and used for detecting the vacuum degree of the sucker (2); a pressure pump (39) is arranged in the pressure pump carrier (3), the pressure pump (39) is communicated with the air storage bag (5) through an air supply conduit (13), and an air outlet hole (4) and an air inlet hole (14) are respectively formed in the pressure pump carrier (3).
2. The resistance triggered telescopic movable apparatus for measuring tunnel segment dislocation of claim 1, wherein: the propelling mechanism comprises a booster (20), a gasket (24), a movable pointer (26), a first spring (23), a clamp spring (25) and a fixed shell (37);
the fixed shell (37) is of a cavity structure penetrating up and down, is welded inside the metal shell (41) and is positioned above the piston (27), and the movable pointer (26) is nested in the fixed shell (37); the lower end of the movable pointer (26) is conical and extends out of the fixed shell (37) to be in contact with the piston (27), the booster (20) is arranged above the movable pointer (26), the gasket (24) is arranged between the booster (20) and the movable pointer (26), the movable pointer (26) is sleeved with the first spring (23), and the upper end and the lower end of the first spring (23) are limited through the clamp spring (25) respectively.
3. The resistance triggered telescopic movable apparatus for measuring tunnel segment dislocation of claim 2, wherein: the positioning mechanism comprises a telescopic fixed point pin (21), a chute (22), a connecting track (31), a positioning pin (35) and a positioning sensor (36);
the chute (22) is vertically arranged on the outer side wall of the metal shell (41), the telescopic fixed-point pin (21) is arranged on the chute (22) in a vertically movable mode, meanwhile, the telescopic fixed-point pin (21) is connected with the booster (20) through the connecting track (31), the locating pin (35) is arranged above the telescopic fixed-point pin (21), and the locating sensor (36) is arranged below the locating pin (35).
4. A resistance triggered telescopic movable apparatus for measuring a dislocation of a tunnel segment according to claim 3, wherein: the locating pin 35 is also provided with a camera (12).
5. The resistance triggered telescopic movable apparatus for measuring tunnel segment dislocation of claim 1, wherein: the displacement measuring mechanism also comprises a pressure water film (29), a second spring (34) and a displacement index meter (33);
a pressure water film (29) which is horizontally arranged and a second spring (34) which is vertically arranged are arranged in the glass tube (30), the upper end and the lower end of the second spring (34) are respectively fixed at the upper end and the lower end of the inside of the glass tube (30), meanwhile, the second spring (34) is connected with a displacement index meter (33), and a power supply is arranged in the displacement index meter (33); the water in the water tank (28) flows into the glass tube (30) through the pressure water film (29) under the drive of the piston (27) and generates current in the glass tube (30), and the current in the glass tube (30) is detected through the displacement index meter (33) so as to obtain the change of the liquid level in the glass tube (30).
6. The resistance triggered telescopic movable apparatus for measuring dislocation of tunnel segment according to any one of claims 1 to 5, wherein: the system also comprises Bluetooth equipment and a remote controller;
the remote controller is connected with the leveling and moving adsorption system and the embedded measurement system through Bluetooth equipment respectively to control the leveling and moving adsorption system and the embedded measurement system to work.
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CN111353990B (en) * 2020-03-06 2023-03-28 深圳力合精密装备科技有限公司 Method and device for acquiring circular groove theoretical value, computer equipment and storage medium
CN113983942B (en) * 2021-10-18 2022-07-26 中国科学院武汉岩土力学研究所 Fiber grating monitoring method and device for shield tunnel segment dislocation

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