CN114485517B - Six-degree-of-freedom monitoring device for monitoring tunnel segment staggered crack - Google Patents
Six-degree-of-freedom monitoring device for monitoring tunnel segment staggered crack Download PDFInfo
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- CN114485517B CN114485517B CN202210103417.5A CN202210103417A CN114485517B CN 114485517 B CN114485517 B CN 114485517B CN 202210103417 A CN202210103417 A CN 202210103417A CN 114485517 B CN114485517 B CN 114485517B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 238000012806 monitoring device Methods 0.000 title claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 9
- 239000013013 elastic material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 19
- 238000003825 pressing Methods 0.000 description 7
- 239000004575 stone Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 235000014510 cooky Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000003775 Density Functional Theory Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The six-degree-of-freedom monitoring device for monitoring the dislocation cracks of the tunnel segments comprises a rigid ball, a first hollow sleeve, a fourth hollow sleeve, a second hollow sleeve, a third hollow sleeve, a fifth hollow sleeve and a sixth hollow sleeve; the first sensor is arranged inside the first hollow sleeve, the fifth sensor is arranged inside the fourth hollow sleeve, the second sensor is arranged inside the second hollow sleeve, the third sensor is arranged inside the third hollow sleeve, the sixth sensor is arranged inside the fifth hollow sleeve, and the fourth sensor is arranged inside the sixth hollow sleeve. According to the invention, the first sensor is pulled when the monitoring object is displaced, the displacement variation of the monitoring object can be obtained through the variation of the upright graphene resistance signal, and meanwhile, the displacement measured by the fifth sensor, the sixth sensor and the fourth sensor can be used for calculating and measuring the displacement rotation direction of the monitoring object.
Description
Technical Field
The invention relates to the technical field of civil engineering monitoring equipment, in particular to a six-degree-of-freedom graphene displacement sensor device for tunnel segment dislocation cracks.
Background
In the construction process of tunnels, subways and the like, part of duct pieces can generate staggered cracks, and the size of the crack width of the generated dry and wet cracks can influence the normal use state more or less. And (3) grasping the subsequent change condition of the crack, and selecting a repairing method for predicting the crack trend.
In the existing traditional displacement sensor, the characteristic of shorter service life in severe environments (such as humidity and high temperature) exists, and the frequency and the intensity of use can have larger influence on the traditional displacement sensor. The narrow displacement meters of the angular displacement meters in the existing displacement sensors are often separated independently, which is easy to cause large human errors in the monitoring required simultaneously.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a six-degree-of-freedom monitoring device for monitoring the dislocation cracks of tunnel segments, so that the problems in the prior art are solved.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a six-degree-of-freedom monitoring device for monitoring a staggered crack of a tunnel segment comprises a rigid ball, a first hollow sleeve, a fourth hollow sleeve, a second hollow sleeve, a third hollow sleeve, a fifth hollow sleeve and a sixth hollow sleeve;
the first sensor is arranged in the first hollow sleeve, the fifth sensor is arranged in the fourth hollow sleeve, the second sensor is arranged in the second hollow sleeve, the third sensor is arranged in the third hollow sleeve, the sixth sensor is arranged in the fifth hollow sleeve, and the fourth sensor is arranged in the sixth hollow sleeve;
the outer part of the first hollow sleeve is welded and connected with a fourth hollow sleeve and a sixth hollow sleeve;
the first sliding rail is fixedly connected to one side of the second hollow sleeve, the second sliding rail is fixedly connected to the other side of the second hollow sleeve, one end of the fifth sensor is slidably connected with the first sliding rail, one end of the sixth sensor is slidably connected with the second sliding rail, the third sliding rail is fixedly connected to one side of the third hollow sleeve, and one end of the fourth sensor is slidably connected with the third sliding rail.
Preferably, the first sensor comprises a clamp, an upstanding graphene material, a cylinder, a first spring and a cookie;
the fixture is arranged at one end of the first hollow sleeve, the cylinder is in sliding connection with the inside of the first hollow sleeve, the upright graphene material is fixed between the fixture and the cylinder, one end of the cylinder is fixedly connected with a first spring, the other end of the first spring is fixedly provided with a round cake, one side of the round cake is fixedly connected with a first pull rod, and the first pull rod penetrates through the end of the rigid round ball to be fixedly connected with a disc.
Preferably, the outer side of the upright graphene material is wrapped with a high-molecular super-elastic material.
Preferably, the fourth sensor, the fifth sensor and the sixth sensor are identical in structure;
the fifth sensor comprises a fourth pull rod, and the end head of the fourth pull rod is provided with a first small ball for limiting the movement at the first sliding rail.
Preferably, the third sensor comprises a third pull rod, a groove is arranged in the inner part of the tail end of the third pull rod to be hinged with a fifth small ball, the fifth small ball is connected with a first smooth round table, the bottom surface of the first smooth round table is tightly connected with a round disc, and the round disc is fixedly connected with the rigid round ball.
Preferably, the second sensor comprises a second pull rod, a fourth small ball is fixed at the tail end of the second pull rod and connected with a second smooth round platform, the fourth small ball can freely rotate at the second smooth round platform, and the second smooth round platform is fixedly connected with the rigid round ball.
The invention has the advantages that: according to the six-degree-of-freedom monitoring device for monitoring the tunnel segment dislocation cracks, disclosed by the invention, the displacement of the three-dimensional direction in the space of the measured object is obtained through the second sensor, the third sensor and the first sensor, and the rotating azimuth angle is calculated through the displacement of the fourth sensor, the fifth sensor and the sixth sensor.
According to the invention, after the rubber telescopic sleeves are correspondingly pressed on the corresponding three planes by the pressing plates, the rubber telescopic sleeves between the two adjacent pressing plates correspondingly form staggered tables and are attached according to the staggered table structure, so that broken stones are prevented from flying out of the cover cylinder when the broken stones are blown off by the blowing device.
Drawings
FIG. 1 is a schematic view of the basic structure of the present invention;
FIG. 2 is a front view of the basic structure of the present invention;
FIG. 3 is a rear elevational view of the basic structure of the present invention;
FIG. 4 is a left side view of the basic structure of the present invention;
FIG. 5 is an enlarged view of a node of the first track of the present invention;
FIG. 6 is an enlarged view of a node of a third pull rod of a third sensor;
FIG. 7 is a schematic view of the internal structure of the first sensor of the present invention;
FIG. 8 is a schematic view of the crack cleaning apparatus of the present invention;
FIG. 9 is a schematic view of the internal structure of the crack cleaning device of the present invention;
fig. 10 is a partial enlarged view at E in fig. 9.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
1-7, the six-degree-of-freedom monitoring device for monitoring the dislocation cracks of the tunnel segment provided by the invention comprises a rigid ball 1, a first hollow sleeve 3, a fourth hollow sleeve 4, a second hollow sleeve 6, a third hollow sleeve 10, a fifth hollow sleeve 9 and a sixth hollow sleeve 13; the first sensor 2 is arranged in the first hollow sleeve 3, the fifth sensor 5 is arranged in the fourth hollow sleeve 4, the second sensor 7 is arranged in the second hollow sleeve 6, the third sensor 11 is arranged in the third hollow sleeve 10, the sixth sensor 8 is arranged in the fifth hollow sleeve 9, and the fourth sensor 12 is arranged in the sixth hollow sleeve 13;
the outside of the first hollow sleeve 3 is welded with the fourth hollow sleeve 4 and the sixth hollow sleeve 13;
one side of the second hollow sleeve 6 is fixedly connected with the first sliding rail 14, the other side of the second hollow sleeve 6 is fixedly connected with the second sliding rail 15, one end of the fifth sensor 5 is in sliding connection with the first sliding rail 14, one end of the sixth sensor 8 is in sliding connection with the second sliding rail 15, one side of the third hollow sleeve 10 is fixedly connected with the third sliding rail 16, and one end of the fourth sensor 12 is in sliding connection with the third sliding rail 16.
The first sensor 2 comprises a clamp 20, an upstanding graphene material 39, a cylinder 30, a first spring 45 and a cookie 48; the fixture 20 is arranged at one end of the first hollow sleeve 3, the cylinder 30 is slidably connected inside the first hollow sleeve 3, the upright graphene material 39 is fixed between the fixture 20 and the cylinder 30, the macromolecule super-elastic material is wrapped outside the upright graphene material 39, one end of the cylinder 30 is fixedly connected with the first spring 45, the other end of the first spring 45 is fixedly provided with the round cake 48, one side of the round cake 48 is fixedly connected with the first pull rod 17, and the first pull rod 17 penetrates through the end of the rigid round ball 1 and is fixedly connected with the disc 57.
In addition, the second sensor 7 and the third sensor 11 have the same structural principle as the first sensor 2;
the fourth sensor 12, the fifth sensor 5 and the sixth sensor 8 are identical in structural principle;
the fifth sensor 5 comprises a fourth pull rod 52, the end of the fourth pull rod 52 being provided with a first ball 58 for limiting the movement at the first slide rail 14, the end of the fourth pull rod 52 following the circular cake 51 and the circular post 54 preventing stress concentration and ensuring that only tensile forces are exerted.
The third sensor 11 comprises a third pull rod 19, a groove 61 is arranged in the inner part of the tail end of the third pull rod 19 and is hinged with a fifth small ball 62, the fifth small ball 62 is connected with a first smooth round table 63, the bottom surface of the first smooth round table 63 is tightly connected with a circular disc 64, and the circular disc 64 is fixedly connected with the rigid round ball 1.
The second sensor 7 comprises a second pull rod, a fourth small ball is fixed at the tail end of the second pull rod and is connected with a second smooth round table 66, the fourth small ball can freely rotate at the second smooth round table, and the second smooth round table is fixedly connected with the rigid round ball 1.
The basic principle is that the energy band structure of the vertical graphene 39 is changed through stretching to generate a band gap so as to influence the Fermi level and the Fermi speed, the Fermi level and the jumping speed are reduced along with the increase of the strain by utilizing the density functional theory and the first principle simulation software analysis, the band gap is a direct influence factor of the change of the resistance of the graphene, the displacement variation is accurately obtained through the change of the resistance, the measurement is completed, the vertical graphene 39 is wrapped by the high polymer super-elastic material to deform simultaneously, the clamp 20 is entrained with the high polymer super-elastic material to fix the clamp on one side of the first spring 45, the vertical graphene 39 is only under the action of the tension, and the resistance signal is changed through pulling to carry out displacement measurement on a monitored object;
because the first hollow sleeve 3, the second hollow sleeve 6 and the third hollow sleeve 10 are connected by the fourth hollow sleeve 4, the fifth hollow sleeve 9 and the sixth hollow sleeve 13 in pairs, the first hollow sleeve 3 is fixed on a monitored object in a binding manner, the first sensor 2, the second sensor 7 and the third sensor 11 are connected with the monitored object, the first sensor 2 is pulled when the monitored object is displaced, the displacement variation of the monitored object can be obtained through the variation of the resistance signals of the upright graphene 39, and meanwhile, the displacement rotation direction of the monitored object can be calculated through the displacement measured by the fifth sensor 5, the sixth sensor 8 and the fourth sensor 12.
The formula of the included angle among the sensors is as follows:
wherein B is the included angle between the first sensor 2 and the third sensor 11, d is the length d=d' +Δ of the hypotenuse of the fourth sensor 12 1 ，Δ 1 For the displacement of the change measured by the fourth sensor 12, d' is the length of the hypotenuse of the fourth sensor 12 when b=90°
a is the distance from the end of the fourth sensor 12 to the center of the circle, and beta is the included angle between the fourth sensor 12 and the first sensor 2.
Wherein A is the included angle between the first sensor 2 and the second sensor 7, e is the length of the hypotenuse of the fifth sensor 5, e=e' +delta 2 ，Δ 2 For the displacement of the change measured by the fifth sensor 5, e' is the length of the hypotenuse of the fifth sensor 5 when a=90°
b is the distance from the end of the fifth sensor 5 to the center of the circle, and alpha is the included angle between the fifth sensor 5 and the first sensor 2. />
Wherein C is the included angle between the second sensor 7 and the third sensor 11, and f is the length f=f of the hypotenuse of the sixth sensor 8 ′ +Δ 3 ，Δ 3 For the displacement of the change measured by the sixth sensor 8, f' is c=90° the length of the hypotenuse of the sixth sensor 8
c is the distance from the end part of the sixth sensor 8 to the center of the circle, and gamma is the included angle between the sixth sensor 8 and the second sensor 7.
Further, the internal structure of the upright graphene is changed by being pulled, so that the resistance is changed, and the resistance signal is converted into an electric signal under the condition of electrifying and then is output to the upper machine for processing.
Example 2
As shown in fig. 8-10, the broken stone which is easy to fall off exists at the position of the tunnel segment dislocation crack, on one hand, the broken stone is unstable to the installation surface, and on the other hand, equipment damage or monitoring error is easy to be caused by falling collision, so the invention also provides a tunnel segment dislocation crack cleaning device, which comprises a support tube 111, the upper end of the support tube 111 is rotationally connected with a cover cylinder 112 and communicated with the cover cylinder, the outer side of the upper end of the cover cylinder 112 is fixedly connected with a rubber telescopic sleeve 113, three sliding grooves 114 are arranged on the upper end of the cover cylinder 112 in an annular array, a pressing plate 115 is slidably connected with each sliding groove 114, the pressing plate 115 is fixedly connected with the bottom of each sliding groove 114, a plurality of support springs 116 are fixedly connected with the bottom of each sliding groove 114, and a blowing device is arranged in the cover cylinder 112.
The staggered platform positions of the duct pieces generally show three planes with different layers, after the rubber telescopic sleeves 113 are pressed on the corresponding three planes through the corresponding pressing plates 115, the rubber telescopic sleeves 113 between two adjacent pressing plates 115 form staggered platforms correspondingly and are attached according to staggered platform structures, and broken stones are prevented from flying out of the cover cylinder 112 when the broken stones are blown off by the blowing device.
The inner wall of the cover cylinder 112 is rotationally connected with a plurality of cleaning rollers 117, a rotating shaft of each cleaning roller 117 extends into a sliding groove 114 to be fixedly connected with a first gear, the inner wall of the sliding groove 114 is slidably connected with a rack 118, the rack 118 is meshed with the first gear, an avoidance groove 119 is formed in the bottom of the pressing plate 115 corresponding to the rack 118, a poking rod 120 is fixedly connected to the upper side of the rack 118, the poking rod 120 extends into the avoidance groove 119, and the poking rod 120 is fixedly connected with a floating spring 121 with the inner wall of the avoidance groove 119; the cover cylinder 112 covers the corresponding position, the cover cylinder 112 is periodically moved by the vertical wall of the staggered platform intermittently by the existing driving equipment below, on one hand, the tunnel structure is stressed so as not to be adversely affected, and on the other hand, the rack 118 and the first gear are stirred so as to enable the cleaning roller 117 to rotate, and the bottom of the staggered platform plane is cleaned, so that the follow-up measurement and installation are facilitated.
The stay tube 111 can provide the pressure air current, stay tube 111 supports cover section of jurisdiction staggered floor crack position at tunnel segment, the blowing device includes rolling disc 211, rolling disc 211 and stay tube 111 fixed connection and intercommunication, rolling disc 211 one side sets up the rotary groove, rotationally connect the turning block 212 in the rotary groove, turning block 212 upside fixed connection gas-blast pipe 213, the inner chamber fixed connection air hose 214 of gas-blast pipe 213 and rolling disc 211, turning block 212 one side sets up gyro wheel 215, a plurality of arc lugs 216 of inner wall interval fixed connection of cover section of thick bamboo 112, gyro wheel 215 can roll on arc lug 216, set up the gyration torsional spring in the pivot of turning block 212, cover section of thick bamboo 112 bottom fixed connection driving motor 217, driving motor 217's main shaft fixed connection drive gear 218, the outside fixed connection outer ring gear of stay tube 111, driving gear 218 meshes with outer ring gear.
Using principle, driving motor 217 drives support tube 111 to rotate through driving gear 218 and external tooth ring meshing, when support tube 111 rotates with rotary disk 211, roller 215 periodically rolls to arc lug 216 by the inner wall of cover cylinder 112 and cooperates the gyration for rotary block 212 periodically swings, changes the position of blow tube 213, thereby is convenient for blow off the easy broken stone that falls in different positions, and is efficient.
Claims (4)
1. The six-degree-of-freedom monitoring device for monitoring the dislocation cracks of the tunnel segments comprises a rigid ball (1), a first hollow sleeve (3), a fourth hollow sleeve (4), a second hollow sleeve (6), a third hollow sleeve (10), a fifth hollow sleeve (9) and a sixth hollow sleeve (13); the method is characterized in that:
the novel sensor comprises a first hollow sleeve (3), a second sensor (7) and a third sensor (11) respectively arranged in the second hollow sleeve (6) and the third hollow sleeve (10), a first sensor (2) is arranged in the first hollow sleeve (3), a fifth sensor (5) is arranged in the fourth hollow sleeve (4), a sixth sensor (8) is arranged in the fifth hollow sleeve (9), and a fourth sensor (12) is arranged in the sixth hollow sleeve (13);
the outside of the first hollow sleeve (3) is welded and connected with a fourth hollow sleeve (4) and a sixth hollow sleeve (13);
one side of the second hollow sleeve (6) is fixedly connected with a first sliding rail (14), the other side of the second hollow sleeve (6) is fixedly connected with a second sliding rail (15), one end of the fifth sensor (5) is in sliding connection with the first sliding rail (14), one end of the sixth sensor (8) is in sliding connection with the second sliding rail (15), one side of the third hollow sleeve (10) is fixedly connected with a third sliding rail (16), and one end of the fourth sensor (12) is in sliding connection with the third sliding rail (16);
the first sensor (2) comprises a clamp (20), an upright graphene material (39), a cylinder (30), a first spring (45) and a cake (48);
the fixture (20) is arranged at one end of the first hollow sleeve (3), the cylinder (30) is connected inside the first hollow sleeve (3) in a sliding way, the upright graphene material (39) is fixed between the fixture (20) and the cylinder (30), one end of the cylinder (30) is fixedly connected with the first spring (45), the other end of the first spring (45) is fixedly connected with the round cake (48), one side of the round cake (48) is fixedly connected with the first pull rod (17), and the first pull rod (17) penetrates through the end of the rigid round ball (1) to be fixedly connected with the disc (57);
and the outer side of the upright graphene material (39) is wrapped with a high-molecular super-elastic material.
2. The six-degree-of-freedom monitoring device for monitoring a staggered crack of a tunnel segment according to claim 1, wherein: the fourth sensor (12), the fifth sensor (5) and the sixth sensor (8) are identical in structure;
the fifth sensor (5) comprises a fourth pull rod (52), and a first small ball (58) is arranged at the end head of the fourth pull rod (52) and used for limiting movement at the first sliding rail (14).
3. The six-degree-of-freedom monitoring device for monitoring a staggered crack of a tunnel segment according to claim 1, wherein: the third sensor (11) comprises a third pull rod (19), a groove (61) is formed in the inner part of the tail end of the third pull rod (19) to be hinged with a fifth small ball (62), the fifth small ball (62) is connected with a first smooth round table (63), the bottom surface of the first smooth round table (63) is tightly attached to a circular disc (64), and the circular disc (64) is fixedly connected with the rigid round ball (1).
4. The six-degree-of-freedom monitoring device for monitoring a staggered crack of a tunnel segment according to claim 1, wherein: the second sensor (7) comprises a second pull rod, a fourth small ball is fixed at the tail end of the second pull rod and connected with a second smooth round platform (66), the fourth small ball can freely rotate at the second smooth round platform, and the second smooth round platform is fixedly connected with the rigid round ball (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210103417.5A CN114485517B (en) | 2022-01-27 | 2022-01-27 | Six-degree-of-freedom monitoring device for monitoring tunnel segment staggered crack |
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| CN202210103417.5A CN114485517B (en) | 2022-01-27 | 2022-01-27 | Six-degree-of-freedom monitoring device for monitoring tunnel segment staggered crack |
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| CN114485517B true CN114485517B (en) | 2023-04-25 |
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2022
- 2022-01-27 CN CN202210103417.5A patent/CN114485517B/en active Active
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