A highway tunnel construction settlement measuring device and a construction method thereof

Abstract

The application belongs to the technical field of construction measuring equipment, and particularly relates to a highway tunnel construction subsidence measuring equipment and a construction method thereof, which comprises a measuring plate, a screw plug-in rod for positioning the measuring plate arranged below the measuring plate, and a driving box for driving the screw plug-in rod to rotate arranged below the measuring plate; a measuring mechanism comprising a chute symmetrically arranged on the two sides of the measuring plate, a measuring block horizontally and slidably connected in the chute, a moving block vertically and slidably connected below the measuring block, two moving rollers rotatably connected in the moving block and extending to below the moving block and in contact with the ground, and a displacement sensor installed on the measuring block and used for calculating the vertical distance between the measuring block and the moving block. The measuring mechanism is arranged, and in the measuring process, the displacement sensor is moved to measure the subsidence in the tunnel from multiple measuring points, so that the range and comprehensiveness of the subsidence measurement are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of construction surveying equipment, and particularly relates to a highway tunnel construction settlement surveying equipment and a construction method thereof. BACKGROUND

[0002] Highway tunnel construction refers to a series of engineering activities for constructing tunnels for highway traffic use. These tunnels are usually used to pass through mountains, underground or water areas to provide a passageway for vehicles. During the construction of the tunnel, the settlement surveying equipment is used to monitor and measure the settlement of the tunnel and the surrounding area in real time, so that the construction personnel can discover the settlement changes in time and give early warning of possible collapse risks, which helps to ensure the safety of the tunnel itself and ensures the smooth progress of the construction and the long-term stable operation of the tunnel.

[0003] However, the prior art such as the highway tunnel construction settlement surveying equipment disclosed in Chinese Patent No. CN118408513B has the following technical problems in use:

[0004] During the measurement, only the settlement of the fixed point can be measured at the position where the measuring rod is arranged, so that the equipment can only measure the settlement of a local area, and the settlement of other areas in the tunnel is ignored. The measurement range is very limited, which makes the construction personnel unable to discover potential problems in the tunnel in time, and increases the risk in the tunnel construction process. SUMMARY

[0005] The present application aims to solve the problems in the above background art, and provides a highway tunnel construction settlement surveying equipment and a construction method thereof, which can move the displacement sensor and measure the settlement in the tunnel from multiple measuring points.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0007] A highway tunnel construction settlement surveying equipment comprises:

[0008] A measuring plate is arranged below the screw insertion rod for positioning the measuring plate, and a drive box is further arranged below the measuring plate for driving the screw insertion rod to rotate.

[0009] The utility model relates to a measuring mechanism, including the chute symmetrically opened in the both sides of measuring plate, two the chute inside horizontal direction sliding connection has the measuring block, the measuring block below vertical direction sliding connection has the moving block, the moving block inside rotation connection has two and with the ground contact moving roller that extends to the moving block below, the measuring block is installed for detecting the displacement sensor between measuring block and moving block vertical distance, the measuring plate above position rotation connection has the traction roller through the mounting seat, the traction roller is equipped with two and about screw plug pole symmetrical setting, the reset spring is equipped between the measuring block and the chute inner wall, the traction rope is wound on the traction roller, the traction rope is fixedly connected with the corresponding position measuring block away from the traction roller one end, the measuring plate top is equipped with the drive assembly for driving two traction roller synchronous opposite direction rotation.

[0010] Preferably, the drive assembly includes a mounting plate fixedly connected to the upper end of the measuring plate, a rotating shaft rotatably connected to the mounting plate, a motor fixedly connected to the end of the mounting plate away from the rotating shaft for driving the rotating shaft, an arc-shaped rack fixedly connected to the rotating shaft through a first connecting rod, and a gear set provided on the end of the traction roller shaft close to the arc-shaped rack.

[0011] Preferably, the measuring plate is provided with a rotating mechanism, including a sleeve fixedly connected to the lower end of the measuring plate, a limiting ring fixedly connected to the inner wall of the sleeve, an abutting ring fixedly connected to the portion of the drive box located in the sleeve and abutting against the upper end of the limiting ring, a plurality of driving blocks fixedly connected to the position of the drive box below the sleeve in a circumferential array, a transmission ring fixedly connected to the side wall of the sleeve, a plurality of transmission blocks fixedly connected to the lower end of the transmission ring in a circumferential array, and a transmission assembly further provided between the transmission ring and the drive assembly.

[0012] Preferably, the transmission assembly includes a worm wheel fixedly connected to the side wall of the transmission ring, a support inclined plate fixedly connected to one side of the measuring plate through a support block, a first transmission rod and a second transmission rod rotatably connected to the side wall of the support inclined plate, a transmission gear fixedly connected to the first transmission rod and periodically engaged with the arc-shaped rack, wherein the radius of the transmission gear is smaller than the radius of any gear in the gear set, a worm fixedly connected to the second transmission rod and engaged with the worm wheel, and a synchronous wheel structure provided between the first transmission rod and the second transmission rod.

[0013] Preferably, the measuring plate is provided with a dust falling mechanism controlled by the measuring block, comprising a liquid pumping cavity opened in the measuring block, a piston plate airtightly and slidably connected in the liquid pumping cavity, a first spring arranged between the piston plate and the inner wall of the liquid pumping cavity, a liquid storage tank fixedly connected to the outer wall of the measuring block away from the traction roller, a liquid pumping pipe in communication between the liquid pumping cavity and the liquid storage tank, a liquid discharging pipe fixedly and communicatively connected to the lower wall of the liquid pumping cavity, a one-way valve arranged in the liquid pumping pipe and the liquid discharging pipe, and an atomizing nozzle arranged at the position of the liquid discharging pipe extending below the measuring block.

[0014] Preferably, the measuring plate is provided with an electrostatic dust removal mechanism controlled by the driving assembly, comprising a receiving frame fixedly connected to the upper end of the measuring plate, an arc-shaped electrostatic plate installed on the rotating rod, a first conductive ring fixedly connected to the upper end of the measuring plate through the support rod, the first conductive ring being divided into a power-on area and a grounding area, an electrostatic generator in communication with the power-on area, a first conductive piece fixedly connected to one end of the arc-shaped electrostatic plate and in contact with the first conductive ring, and a shaking assembly further arranged on the measuring plate.

[0015] Preferably, the shaking assembly comprises a guide groove opened on the rotating rod, a second connecting rod fixedly connected to the arc-shaped electrostatic plate and slidably connected to the inside of the guide groove, an empty slot opened on one side of the arc-shaped electrostatic plate close to the first conductive piece, the first conductive piece being slidably connected to the inner wall of the empty slot and being provided with a second spring between the first conductive piece and the inner wall of the empty slot, a roller hinged to one side wall of the arc-shaped electrostatic plate away from the first conductive piece through a hinge seat, an arc-shaped guide block fixedly connected to the upper end of the measuring plate, a plurality of protruding blocks fixedly connected to one side wall of the arc-shaped guide block and arranged at equal intervals, and the roller being in contact and rolling with the arc-shaped guide block and the plurality of protruding blocks.

[0016] Preferably, an alarm mechanism is arranged between the measuring block and the moving block, comprising a guide rod slidably connected to the measuring block and penetrating through the measuring block, the bottom end of the guide rod being fixedly connected to the moving block, a threaded rod rotatably connected to the moving block and penetratingly extending above the measuring block, the measuring block and the threaded rod being threadedly connected and the friction coefficient between them being less than the tangent value of the helix angle of the thread, an alarm block fixedly connected to the top end of the threaded rod, a control cavity opened in the alarm block, a second conductive ring fixedly connected to the inner wall of the control cavity, a fixed rod coaxially arranged with the threaded rod and fixedly connected in the control cavity, an extension rod fixedly connected to the rod body of the fixed rod, a second conductive piece fixedly connected to the extension end of the extension rod, a third spring arranged between the second conductive piece and the fixed rod, a buzzer fixedly connected to the upper end of the alarm block, and the buzzer being connected in series with the power supply device through the second conductive piece and the second conductive ring.

[0017] A construction method applied to the above-mentioned highway tunnel construction settlement measuring device, comprising:

[0018] S1, fixed work: in the construction process, the driving source in the driving box drives the spiral plug-in rod to rotate, the spiral plug-in rod is drilled into the ground, and the position of the measuring plate is positioned;

[0019] S2, horizontal measurement: the driving assembly periodically drives the two measuring blocks to approach each other, further drives the two moving blocks to approach each other, and the distance between the two measuring blocks and the moving blocks changes, so that the measuring point is moved in the horizontal direction;

[0020] S3, change of measurement angle: after the two measuring blocks approach each other and complete the horizontal measurement, before the arc gear again drives the gear set to rotate, the transmission assembly drives the worm gear and the transmission ring to rotate by a unit angle, so that the measuring plate can rotate by a unit angle, and the settlement measurement in each direction is realized.

[0021] S4, dust treatment: when the two measuring blocks are close to each other and the arc gear is no longer engaged with the gear set, the measuring blocks can be quickly reset under the elastic force of the reset spring, the two measuring blocks are quickly away from each other, so that the piston plate overcomes the elastic force of the first spring under the action of inertial force, the water sucked out is sprayed out, and the dust in the air around the measuring position is adsorbed and settled on the ground.

[0022] Compared with the prior art, the advantages of the highway tunnel construction settlement measurement device and the construction method thereof are:

[0023] 1. The measuring mechanism is arranged, in the measuring process, the driving assembly drives the two traction rollers to rotate periodically in opposite directions, so that the two measuring blocks and the moving blocks are pulled by the traction ropes on the traction rollers to move horizontally and approach each other periodically, and further move away from each other under the elastic force of the reset spring until reset, the displacement sensor moves, the settlement in the tunnel can be measured from multiple measuring points, and the range and comprehensiveness of settlement measurement are improved.

[0024] 2. The rotating mechanism is arranged, when the arc gear is engaged with the gear set each time, it can be engaged with the transmission gear before the next engagement with the gear set, and further drive the worm gear to rotate through the transmission assembly, drive the sleeve and the measuring plate to rotate by a unit angle as a whole, and measure the settlement in the tunnel from different directions, further improve the comprehensiveness of settlement measurement.

[0025] 3、The dust falling mechanism is set, the two measuring blocks are far away from each other under the elastic force of the reset spring, the piston plate in the two measuring blocks is slid a certain distance in the liquid pumping cavity under the action of inertia force, the water in the liquid pumping cavity is sprayed out through the drain pipe and the atomizing nozzle, when the two measuring blocks are far away from each other until the initial position is restored, the inertia force disappears, the piston plate is reversely slid and reset, the water in the liquid storage tank is pumped into the liquid pumping cavity, the surrounding of the measuring position is periodically sprayed during the measurement, the dust in the air around the measuring position is adsorbed by the small water droplets and settled on the ground, the dust adhered to the displacement sensor is avoided, and the precision of the settlement measurement is affected.

[0026] 4、The electrostatic dust removal mechanism is set, the rotation of the rotating rod makes the first conductive sheet contact the electrification area and the grounding area periodically, the arc-shaped electrostatic plate is electrified periodically, the dust is adsorbed, and the grounding electrode is periodically contacted, so that the dust on the arc-shaped electrostatic plate can fall into the storage frame for storage, the air quality in the tunnel and the accuracy of the measurement result are further improved.

[0027] 5、The shaking-off assembly is set, when the arc-shaped electrostatic plate is rotated to the first conductive sheet and the grounding area, the arc-shaped electrostatic plate can be shaken under the action of the roller, the arc-shaped guide block and the convex block, and then the dust on the arc-shaped electrostatic plate is shaken off, the cleanliness of the surface of the arc-shaped electrostatic plate is improved, and the adsorption and cleaning effect of the arc-shaped electrostatic plate on the dust is improved.

[0028] 6、The alarm mechanism is set, when the short-distance large settlement occurs in the tunnel, the moving block can be displaced a large distance downward relative to the measuring block in a short time, the threaded rod is relatively quickly rotated, the elastic force of the third spring is overcome under the action of the centrifugal force, the second conductive sheet is in contact with the second conductive ring, the buzzer alarm works, and the safety during construction is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0030] Figure 2 is a schematic diagram of the local structure of the measuring mechanism in the present application;

[0031] Figure 3 is a local sectional view of the rotating mechanism in the present application;

[0032] Figure 4 is Figure 3 is an enlarged view of A in the present application;

[0033] Figure 5is a partial sectional view of the dust falling mechanism in the application;

[0034] Figure 6 is a partial structural schematic view of the electrostatic dust removal mechanism in the application;

[0035] Figure 7 is a partial sectional view of the alarm mechanism in the application.

[0036] In the figure: 1, measuring plate; 11, spiral plug-in rod; 12, drive box; 2, measuring mechanism; 21, sliding groove; 22, measuring block; 23, moving block; 24, displacement sensor; 25, traction roller; 26, reset spring; 27, traction rope; 28, drive assembly; 281, mounting plate; 282, rotating rod; 283, motor; 284, arc-shaped rack; 285, gear set; 3, rotating mechanism; 31, sleeve; 32, limiting ring; 33, abutting ring; 34, drive block; 35, transmission block; 36, transmission assembly; 361, worm gear; 362, support inclined plate; 363, first transmission rod; 364, second transmission rod; 365, transmission gear; 366, worm; 367, synchronous wheel structure; 4, dust falling mechanism; 41, liquid pumping cavity; 42, piston plate; 43, first spring; 44, liquid storage tank; 45, liquid pumping pipe; 46, liquid discharge pipe; 5, electrostatic dust removal mechanism; 51, storage frame; 52, arc-shaped electrostatic plate; 53, first conductive ring; 54, electrification area; 55, grounding area; 56, first conductive sheet; 57, shaking assembly; 571, guide groove; 572, empty groove; 573, second spring; 574, roller; 575, arc-shaped guide block; 576, protruding block; 6, alarm mechanism; 61, guide rod; 62, threaded rod; 63, alarm block; 64, control cavity; 65, second conductive ring; 66, fixed rod; 67, telescopic rod; 68, second conductive sheet; 69, third spring. DETAILED DESCRIPTION

[0037] The following examples are for illustrative purposes only and are not intended to limit the scope of the application.

[0038] Example: Reference Figures 1 to 7 A highway tunnel construction settlement measuring device, comprising:

[0039] The measuring plate 1 is provided below with a spiral plug-in rod 11 for positioning the measuring plate 1, and is also provided below with a drive box 12 for driving the spiral plug-in rod 11 to rotate, specifically, the drive box 12 drives the spiral plug-in rod 11 to rotate through the rotary motor arranged inside, so as to fix the measuring plate 1 at a certain height above the ground, which is a mature technology and will not be described here;

[0040] The measuring mechanism 2 is used for moving the measuring point in the horizontal direction to improve the comprehensiveness of the measurement, and comprises two symmetrical sliding grooves 21 opened on both sides of the measuring plate 1, two measuring blocks 22 symmetrically and slidingly connected in the horizontal direction in the two sliding grooves 21, a moving block 23 slidingly connected in the vertical direction below the measuring block 22, two moving rollers rotatingly connected in the moving block 23 and extending below the moving block 23 and contacting the ground, a displacement sensor 24 installed on the measuring block 22 and used for measuring the vertical distance between the measuring block 22 and the moving block 23, a traction roller 25 rotatingly connected through a mounting seat above the measuring plate 1, the traction roller 25 being provided with two and symmetrically arranged about the screw plug rod 11, a reset spring 26 arranged between the measuring block 22 and the inner wall of the sliding groove 21, a traction rope 27 wound on the traction roller 25, one end of the traction rope 27 away from the traction roller 25 being fixedly connected with the corresponding measuring block 22, and a driving assembly 28 arranged above the measuring plate 1 and used for driving the two traction rollers 25 to synchronously rotate in opposite directions.

[0041] Specifically, the displacement sensor 24 can adopt a common fiber grating sensor, which utilizes the wavelength change of the optical signal transmitted in the optical fiber to sense the deformation or displacement of the object. Specifically, the displacement sensor 24 interacts with the displacement or strain of the outside world through the grating, generates a change in the reflected wavelength, and obtains the relative distance between the measuring block 22 and the moving block 23 by analyzing the change, so as to detect the settlement amplitude.

[0042] The driving assembly 28 comprises a mounting plate 281 fixedly connected to the upper end of the measuring plate 1, a rotating rod 282 rotatingly connected to the mounting plate 281, a motor 283 fixedly connected to one end of the mounting plate 281 away from the rotating rod 282 and used for driving the rotating rod 282, an arc-shaped rack 284 fixedly connected to the rotating rod 282 through a first connecting rod, and a gear set 285 provided on the rotating shaft of the traction roller 25 and close to one end of the arc-shaped rack 284. In actual use, the rotating rod 282 is driven to rotate by the motor 283, so as to drive the arc-shaped rack 284 to perform a circular motion, so that the arc-shaped rack 284 is periodically engaged with one gear of the gear set 285. Since the two gears of the gear set 285 are engaged with each other, the two traction rollers 25 are driven to synchronously rotate in opposite directions through the two gears.

[0043] The present application solves the problem that the prior art can only measure the settlement of fixed points at the position where the measuring rod is arranged, and the device can only measure the settlement of a local area, and the measurement range is very limited, by arranging a measuring mechanism 2, during the measurement, the two traction rollers 25 are driven by the driving assembly 28 to rotate periodically in opposite directions, so that the two measuring blocks 22 and the moving block 23 are pulled by the traction ropes 27 on the traction rollers 25 to move horizontally towards each other periodically, and further, under the elastic force of the reset spring 26, the two measuring blocks 22 and the moving block 23 are moved away from each other until they are reset, during this process, when the ground settles, the moving block 23 will be displaced downward relative to the measuring block 22 due to its own gravity, and the moving roller below the moving block 23 is always in rolling contact with the ground, so that the relative distance between the measuring block 22 and the moving block 23 is measured by the displacement sensor 24 to detect the settlement distance in the tunnel, and by moving the measuring block 22 and the moving block 23, the settlement in the tunnel can be measured from multiple measuring points, the range and comprehensiveness of the settlement measurement are improved, the probability of discovering potential problems by the construction personnel is improved, and the danger in the construction process is reduced.

[0044] The measuring plate 1 is provided with a rotating mechanism 3 for realizing settlement measurement in all directions by rotating the measuring plate 1, the rotating mechanism 3 comprises a sleeve 31 fixedly connected to the lower end of the measuring plate 1, the inner wall of the sleeve 31 is fixedly connected with a limiting ring 32, the part of the driving box 12 located in the sleeve 31 is fixedly connected with an abutting ring 33 abutting against the upper end of the limiting ring 32, a plurality of driving blocks 34 arranged in a circumferential array are fixedly connected to the position below the sleeve 31, a transmission ring is fixedly connected to the lateral wall of the sleeve 31, a plurality of transmission blocks 35 arranged in a circumferential array are fixedly connected to the lower end of the transmission ring, and a transmission assembly 36 is further arranged between the transmission ring and the driving assembly 28 for automatically rotating the measuring plate 1 by a unit angle after each measurement.

[0045] Specifically, since the height of the driving box 12 remains unchanged under the action of the screw plug rod 11, when the sleeve 31 rotates by a unit angle, the inclined surface of the transmission block 35 below the sleeve 31 will slide along the inclined surface of the driving block 34, so that the sleeve 31 moves vertically relative to the driving box 12, and the abutting ring 33 and the limiting ring 32 ensure that the sleeve 31 can move and rotate vertically relative to the driving box 12.

[0046] Specifically, when the transmission block 35 rotates with the sleeve 31, it is pushed by the driving block 34, so that the transmission block 35 can drive the sleeve 31 and the measuring plate 1 to move upward as a whole, avoiding the rotation of the measuring plate 1 being hindered by the moving block 23 and the moving roller at the bottom end thereof.

[0047] The transmission assembly 36 comprises a worm wheel 361 fixedly connected with a transmission ring circumferential wall, one side of the measuring plate 1 is fixedly connected with a supporting inclined plate 362 through a supporting block, the side wall of the supporting inclined plate 362 is rotatably connected with a first transmission rod 363 and a second transmission rod 364, the first transmission rod 363 is fixedly connected with a transmission gear 365 periodically meshing with the arc-shaped rack 284, and the radius of the transmission gear 365 is smaller than the radius of any gear in the gear set 285, the second transmission rod 364 is fixedly connected with a worm 366 meshing with the worm wheel 361, and a synchronous wheel structure 367 is arranged between the first transmission rod 363 and the second transmission rod 364.

[0048] Specifically, the synchronous wheel structure 367 comprises synchronous wheels fixedly connected with the first transmission rod 363 and the second transmission rod 364, and a synchronous belt is sleeved between the two synchronous wheels. The synchronous wheel and the synchronous belt can also be replaced by a sprocket and a chain, as long as the first transmission rod 363 can always drive the second transmission rod 364 to rotate synchronously when rotating, which is not limited here.

[0049] Specifically, when the arc-shaped rack 284 rotates to mesh with the transmission gear 365, the first transmission rod 363 is driven to rotate by a unit angle, and the second transmission rod 364 is further driven to rotate by a unit angle through the synchronous wheel structure 367, and the worm wheel 361 is driven to rotate by a unit angle through the worm 366, so that the sleeve 31 can rotate by a unit angle.

[0050] In order to further improve the comprehensiveness of the sedimentation measurement, the rotating mechanism 3 is arranged, the arc-shaped rack 284 in the driving assembly 28 can periodically mesh with the gear set 285 and drive the measuring mechanism 2 to work, and in this process, the arc-shaped rack 284 can mesh with the transmission gear 365 before meshing with the gear set 285 next time after meshing with the gear set 285 each time, and then the worm wheel 361 is driven to rotate through the transmission assembly 36, the sleeve 31 and the measuring plate 1 are driven to rotate by a unit angle through the worm wheel 361, the sedimentation in the tunnel is measured from different directions, and the comprehensiveness of the measurement is further improved. In this process, the rotation of the sleeve 31 will make the sleeve 31 and the measuring plate 1 synchronously displace a certain distance upward under the action of the driving block 34 and the transmission block 35. Since the radius of the transmission gear 365 is smaller than the radius of any gear in the gear set 285, the upward displacement process of the measuring plate 1 is faster than the slow moving process of the measuring plate 1, so that the measuring plate 1 drives the moving block 23 below to synchronously move upward during the rotating process. Since the upward movement process is fast, the moving rollers at the bottom of the moving block 23 cannot timely contact the ground, so as to avoid the interference of the contact between the moving rollers below the moving block 23 and the ground on the rotation.

[0051] The measuring plate 1 is provided with a dust falling mechanism 4 controlled by the measuring block 22, which is used for periodically carrying out dust falling treatment on the measuring position during the measuring process.

[0052] Specifically, the one-way valve is arranged so that the piston plate 42 can only pump the water in the liquid storage tank 44 into the liquid pumping cavity 41 through the liquid pumping pipe 45 and can only pump the water in the liquid pumping cavity 41 out to the atomizing nozzle through the liquid discharging pipe 46 when sliding in the liquid pumping cavity 41, thereby avoiding backflow.

[0053] Considering that a large amount of dust will be generated during the construction of the tunnel, the dust falling mechanism 4 is arranged, and since the process of moving away from each other of the two measuring blocks 22 is rapidly carried out under the elastic force of the reset spring 26, the piston plate 42 in the two measuring blocks 22 will overcome the elastic force of the first spring 43 under the action of the inertial force and slide a certain distance in the liquid pumping cavity 41 during the process of moving away from each other, so as to spray the water in the liquid pumping cavity 41 through the liquid discharging pipe 46 and the atomizing nozzle, and when the two measuring blocks 22 move away from each other until they return to the initial position, the inertial force disappears, so that the piston plate 42 reversely slides in the liquid pumping cavity 41 under the elastic force of the first spring 43, thereby pumping the water in the liquid storage tank 44 into the liquid pumping cavity 41 through the liquid pumping pipe 45, and spraying the water around the measuring position periodically during the measuring process, so that the dust in the air around the measuring position is adsorbed by the small water droplets and falls to the ground, which not only plays a dust removal role in the tunnel and purifies the construction environment, but also avoids the dust from adhering to the displacement sensor 24 to affect the precision of the settlement measurement.

[0054] The measuring plate 1 is provided with a dust falling mechanism 4 controlled by the measuring block 22, which is used for periodically carrying out dust falling treatment on the measuring position during the measuring process.

[0055] It is worth mentioning that, the application sets the electrostatic dust removal mechanism 5, in the measurement process, the rotating shaft 282 in the driving assembly 28 rotates, which can drive the arc-shaped electrostatic plate 52 to rotate, so that the first conductive sheet 56 on the arc-shaped electrostatic plate 52 rotates along the first conductive ring 53, when the first conductive sheet 56 rotates to the electrification area 54, the arc-shaped electrostatic plate 52 forms a passage between the first conductive sheet 56, the electrification area 54 and the electrostatic generator, so that the electrostatic generator can deliver static electricity to the arc-shaped electrostatic plate 52, so that the arc-shaped electrostatic plate 52 can adsorb dust in the air through static electricity in the rotating process, and when the first conductive sheet 56 rotates to the grounding area 55, the arc-shaped electrostatic plate 52 is grounded, so that the dust on it can fall into the storage frame 51 for storage, further improving the air quality in the tunnel and the accuracy of the measurement results.

[0056] The shaking-off assembly 57 comprises a guide groove 571 opened on the rotating shaft 282, the arc-shaped electrostatic plate 52 is fixedly connected with a second connecting rod slidingly connected in the guide groove 571, a side of the arc-shaped electrostatic plate 52 close to the first conductive sheet 56 is provided with an empty groove 572, the first conductive sheet 56 is slidingly connected to the inner wall of the empty groove 572 and is provided with a second spring 573 between the first conductive sheet 56 and the inner wall of the empty groove 572, a side wall of the arc-shaped electrostatic plate 52 away from the first conductive sheet 56 is hingedly connected with a roller 574 through a hinged seat, the upper end of the measuring plate 1 is fixedly connected with an arc-shaped guide block 575, the inner wall of the arc-shaped guide block 575 is fixedly connected with a plurality of protruding blocks 576 arranged at equal intervals, and the roller 574 is in contact and rolls with the arc-shaped guide block 575 and the plurality of protruding blocks 576.

[0057] It is also worth mentioning that, the application sets the shaking-off assembly 57, when the arc-shaped electrostatic plate 52 rotates to the first conductive sheet 56 and the grounding area 55 contact, the roller 574 on one side of the arc-shaped electrostatic plate 52 moves to contact and roll with the arc-shaped guide block 575, the protruding blocks 576 arranged on the arc-shaped guide block 575 periodically push the roller 574, so that the arc-shaped electrostatic plate 52 can reciprocally move, in this process, the first conductive sheet 56 periodically penetrates into the empty groove 572 and is periodically reset under the elastic force of the second spring 573, the elastic force of the second spring 573 ensures that the first conductive sheet 56 is always in contact with the first conductive ring 53, so that the arc-shaped electrostatic plate 52 can shake when it is grounded, thereby shaking off the dust on it, improving the cleanliness of the surface of the arc-shaped electrostatic plate 52 and the dust adsorption and cleaning effect of the arc-shaped electrostatic plate 52.

[0058] An alarm mechanism 6 is arranged between the measuring block 22 and the moving block 23, and is used for alarming when a large subsidence occurs in a short distance inside the tunnel, the alarm mechanism 6 comprises a guide rod 61 which is slidably connected to the measuring block 22, the bottom end of the guide rod 61 is fixedly connected to the moving block 23, the moving block 23 is rotatably connected with a threaded rod 62 which extends through the measuring block 22, the threaded rod 62 is threadedly connected with the measuring block 22 and the friction coefficient between them is less than the tangent value of the helix angle of the thread, the top end of the threaded rod 62 is fixedly connected with an alarm block 63, the alarm block 63 is internally provided with a control cavity 64, a second conductive ring 65 is fixedly connected to the inner wall of the control cavity 64, a fixed rod 66 which is coaxially arranged with the threaded rod 62 is fixedly connected to the inside of the control cavity 64, a telescopic rod 67 is fixedly connected to the rod body of the fixed rod 66, a second conductive sheet 68 is fixedly connected to the telescopic end of the telescopic rod 67, a third spring 69 is arranged between the second conductive sheet 68 and the fixed rod 66, a buzzer alarm is fixedly connected to the upper end of the alarm block 63, and the buzzer alarm is connected in series with the power supply device through the second conductive sheet 68 and the second conductive ring 65.

[0059] Considering that a large subsidence in a short distance inside the tunnel may cause a series of serious problems related to the tunnel structure, the surrounding soil body, underground water and the like, the alarm mechanism 6 is arranged, when a large subsidence in a short distance occurs inside the tunnel, the moving block 23 can be displaced by a large distance downward relative to the measuring block 22 in a short time, since the friction coefficient between the measuring block 22 and the threaded rod 62 is less than the tangent value of the helix angle of the thread, when the moving block 23 is displaced by a large distance downward in a short time, the threaded rod 62 can be relatively quickly rotated, so that the centrifugal force overcomes the elastic force of the third spring 69 and the second conductive sheet 68 contacts the second conductive ring 65 under the action of the centrifugal force, the buzzer alarm works, and the construction personnel can take relevant measures in time when a large subsidence in a short distance occurs inside the tunnel, and the safety in the construction process is further improved.

[0060] A construction method applied to the above highway tunnel construction subsidence measuring device, comprising:

[0061] S1, fixed work: in the construction process, the driving source in the driving box 12 drives the screw plug rod 11 to rotate, the screw plug rod 11 is drilled into the ground, and the position of the measuring plate 1 is positioned;

[0062] S2, horizontal direction measurement: the driving assembly 28 periodically drives the two measuring blocks 22 to approach each other, further drives the two moving blocks 23 to approach each other, and the distance between the two measuring blocks 22 and the moving blocks 23 changes, so that the measuring point position is moved in the horizontal direction, and the measurement comprehensiveness is improved;

[0063] S3, the transition of the measurement angle: after each two measurement blocks 22 close to each other, complete the horizontal direction measurement, when the arc-shaped rack 284 again drive gear set 285 rotation, before, can be driven by transmission assembly 36 worm wheel 361 and transmission ring rotation unit angle, so that the measurement plate 1 can be rotated unit angle, realize each direction of the settlement measurement;

[0064] S4, dust treatment: two measurement blocks 22 in each other after close, when the arc-shaped rack 284 no longer mesh with gear set 285, can make the measurement block 22 under the action of the elastic force of reset spring 26 fast return, realize the fast away of two measurement blocks 22, so that the piston plate 42 under the action of inertia force overcomes the elastic force of the first spring 43, the water sucked out is sprayed out, so that the dust in the air around the measurement position can be absorbed by the small water droplets and settled on the ground.

[0065] The above only for the preferred embodiment of the present application, and not to limit the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A settlement measurement device for highway tunnel construction, characterized in that, include: Measuring plate (1), with a spiral plug rod (11) for positioning the measuring plate (1) below the measuring plate (1), and a drive box (12) for driving the spiral plug rod (11) to rotate below the measuring plate (1). The measuring mechanism (2) includes symmetrically arranged grooves (21) on both sides of the measuring plate (1). Measuring blocks (22) are symmetrically connected horizontally within the two grooves (21). A moving block (23) is slidably connected vertically below the measuring blocks (22). Two moving rollers extending below the moving block (23) and in contact with the ground are rotatably connected within the moving block (23). A displacement sensor (24) for detecting the vertical distance between the measuring block (22) and the moving block (23) is installed on the measuring block (22). The measuring plate (1) A traction roller (25) is rotatably connected to the upper position of the measuring plate (1) via a mounting base. Two traction rollers (25) are provided and are symmetrically arranged about the spiral plug rod (11). A return spring (26) is provided between the measuring block (22) and the inner wall of the slide groove (21). A traction rope (27) is wound on the traction roller (25). The end of the traction rope (27) away from the traction roller (25) is fixedly connected to the measuring block (22) at the corresponding position. A drive assembly (28) is provided above the measuring plate (1) for driving the two traction rollers (25) to rotate synchronously in opposite directions. The drive assembly (28) includes a mounting plate (281) fixedly connected to the upper end of the measuring plate (1). A rotating rod (282) is rotatably connected to the mounting plate (281). A motor (283) for driving the rotating rod (282) is fixedly connected to one end of the mounting plate (281) away from the rotating rod (282). An arc-shaped rack (284) is fixedly connected to the rotating rod (282) through a first connecting rod. A gear set (285) is provided at one end of the shaft of the traction roller (25) near the arc-shaped rack (284). The arc-shaped rack (284) meshes with one of the gears in the gear set (285).

2. The highway tunnel construction settlement measurement equipment according to claim 1, characterized in that, The measuring plate (1) is provided with a rotating mechanism (3), including a sleeve (31) fixedly connected to the lower end of the measuring plate (1). A limit ring (32) is fixedly connected to the inner wall of the sleeve (31). The part of the drive box (12) located inside the sleeve (31) is fixedly connected to an abutting ring (33) that abuts against the upper end of the limit ring (32). A plurality of drive blocks (34) arranged in a circular array are fixedly connected to the position of the drive box (12) located below the sleeve (31). A transmission ring is fixedly connected to the peripheral side wall of the sleeve (31). A plurality of transmission blocks (35) arranged in a circular array are fixedly connected to the lower end of the transmission ring. A transmission assembly (36) is also provided between the transmission ring and the drive assembly (28).

3. The highway tunnel construction settlement measurement equipment according to claim 2, characterized in that, The transmission assembly (36) includes a worm gear (361) fixedly connected to the side wall of the transmission ring. A support inclined plate (362) is fixedly connected to one side of the measuring plate (1) via a support block. A first transmission rod (363) and a second transmission rod (364) are rotatably connected to the side wall of the support inclined plate (362). A transmission gear (365) that periodically meshes with an arc-shaped rack (284) is fixedly connected to the first transmission rod (363), and the radius of the transmission gear (365) is smaller than the radius of any one of the gears in the gear set (285). A worm (366) that meshes with the worm gear (361) is fixedly connected to the second transmission rod (364). A synchronous pulley structure (367) is provided between the first transmission rod (363) and the second transmission rod (364).

4. The highway tunnel construction settlement measurement equipment according to claim 3, characterized in that, The measuring plate (1) is provided with a dust suppression mechanism (4) controlled by the measuring block (22), including a liquid extraction chamber (41) opened inside the measuring block (22). The liquid extraction chamber (41) is airtightly slidably connected to a piston plate (42). A first spring (43) is provided between the piston plate (42) and the inner wall of the liquid extraction chamber (41). A liquid storage tank (44) is fixedly connected to the outer wall of the measuring block (22) away from the traction roller (25). A liquid extraction pipe (45) is connected between the liquid extraction chamber (41) and the inside of the liquid storage tank (44). A drain pipe (46) is fixedly connected to the lower wall of the liquid extraction chamber (41). A one-way valve is provided in the liquid extraction pipe (45) and the drain pipe (46). An atomizing nozzle is provided at the position where the drain pipe (46) extends to the bottom of the measuring block (22).

5. The highway tunnel construction settlement measurement equipment according to claim 4, characterized in that, The measuring plate (1) is provided with an electrostatic dust removal mechanism (5) controlled by a drive assembly (28), including a storage frame (51) fixedly connected to the upper end of the measuring plate (1), an arc-shaped electrostatic plate (52) installed on the rotating rod (282), a first conductive ring (53) fixedly connected to the upper end of the measuring plate (1) through a support rod, the first conductive ring (53) is divided into an energized area (54) and a grounding area (55), the energized area (54) is connected to an electrostatic generator, one end of the arc-shaped electrostatic plate (52) is fixedly connected to a first conductive sheet (56) in contact with the first conductive ring (53), and the measuring plate (1) is also provided with a shaking assembly (57).

6. The highway tunnel construction settlement measurement equipment according to claim 5, characterized in that, The shaking assembly (57) includes a guide groove (571) opened on the rotating rod (282). A second connecting rod is fixedly connected to the arc-shaped electrostatic plate (52) and slidably connected inside the guide groove (571). A slot (572) is opened on the side of the arc-shaped electrostatic plate (52) near the first conductive sheet (56). The first conductive sheet (56) is slidably connected to the inner wall of the slot (572) and a second spring (573) is provided between the first conductive sheet (56) and the inner wall of the slot (572). A roller (574) is hinged to the side wall of the arc-shaped electrostatic plate (52) away from the first conductive sheet (56) through a hinge seat. An arc-shaped guide block (575) is fixedly connected to the upper end of the measuring plate (1). A plurality of equidistant protrusions (576) are fixedly connected to the side wall of the arc-shaped guide block (575). The roller (574) contacts and rolls with the arc-shaped guide block (575) and the plurality of protrusions (576).

7. The highway tunnel construction settlement measurement equipment according to claim 6, characterized in that, An alarm mechanism (6) is provided between the measuring block (22) and the moving block (23), including a guide rod (61) that is slidably connected to the measuring block (22). The bottom end of the guide rod (61) is fixedly connected to the moving block (23). A threaded rod (62) is rotatably connected to the moving block (23). The threaded rod (62) extends through to the top of the measuring block (22). The measuring block (22) and the threaded rod (62) are threadedly connected, and the coefficient of friction between them is less than the tangent of the helix angle of the thread. An alarm block (63) is fixedly connected to the top end of the threaded rod (62). A control mechanism is provided inside the alarm block (63). The control cavity (64) has a second conductive ring (65) fixedly connected to its inner wall. The control cavity (64) has a fixed rod (66) fixedly connected to its interior, which is coaxial with the threaded rod (62). The fixed rod (66) has a telescopic rod (67) fixedly connected to its body. The telescopic end of the telescopic rod (67) has a second conductive sheet (68) fixedly connected to its telescopic end. A third spring (69) is provided between the second conductive sheet (68) and the fixed rod (66). The upper end of the alarm block (63) has a buzzer fixedly connected to its upper end. The buzzer is connected in series with the power supply device through the second conductive sheet (68) and the second conductive ring (65).

8. The construction method of the highway tunnel construction settlement measurement equipment according to claim 7, characterized in that, include: S1. Fixed work: During the construction process, the drive source in the drive box (12) drives the spiral plug rod (11) to rotate, and drills the spiral plug rod (11) into the ground to locate the position of the measuring plate (1); S2, Horizontal measurement: The two measuring blocks (22) are periodically driven to move closer to each other by the driving component (28), and the two moving blocks (23) are further driven to move closer to each other. The measurement point is moved horizontally by the change in distance between the two measuring blocks (22) and the moving blocks (23). S3. Change of measurement angle: After the two measuring blocks (22) approach each other and complete the horizontal measurement, before the arc rack (284) drives the gear set (285) to rotate again, the worm gear (361) and the transmission ring can be rotated by a unit angle through the transmission component (36), so that the measuring plate (1) can rotate by a unit angle to realize the sedimentation measurement in all directions; S4. Dust removal treatment: After the two measuring blocks (22) approach each other, when the arc rack (284) no longer meshes with the gear set (285), the measuring blocks (22) can be moved and reset quickly under the elastic force of the reset spring (26), so that the two measuring blocks (22) can move away quickly, and under the action of inertial force, the piston plate (42) overcomes the elastic force of the first spring (43) and sprays out the water that is sucked out, so that the dust in the air around the measurement position can be absorbed by the small water droplets and settle to the ground.

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