CN114813788A - Comprehensive detection device and detection method for solidified soil subgrade - Google Patents
Comprehensive detection device and detection method for solidified soil subgrade Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/02—Dead axles, i.e. not transmitting torque
- B60B35/10—Dead axles, i.e. not transmitting torque adjustable for varying track
- B60B35/1036—Dead axles, i.e. not transmitting torque adjustable for varying track operated with power assistance
- B60B35/1063—Dead axles, i.e. not transmitting torque adjustable for varying track operated with power assistance automatically dependent on operational state of the vehicle
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/08—Investigation of foundation soil in situ after finishing the foundation structure
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/225—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion
- G01N23/2255—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion using incident ion beams, e.g. proton beams
- G01N23/2257—Measuring excited X-rays, i.e. particle-induced X-ray emission [PIXE]
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
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- G01S19/14—Receivers specially adapted for specific applications
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Abstract
The invention relates to the technical field of road detection, and discloses a comprehensive detection device and a detection method for a solidified soil roadbed, which comprises a detection box, wherein the detection box is arranged on a locking frame, a Beidou positioning module is installed at the top end of a supporting pipe, the detection box comprises a box shell, a conveying assembly is installed at the lower end of the interior of the box shell, a ground penetrating radar is installed on one side of the interior of the box shell, which is close to the conveying assembly, an energy spectrometer is installed at the upper end of the interior of the box shell, which is close to the conveying assembly, and a sampling assembly is installed on one side of the interior of the box shell, which is close to the sampling assembly. According to the invention, the mixing uniformity and the compaction degree of the solidified soil roadbed can be synchronously detected through the energy spectrometer and the ground penetrating radar, the measured position can be synchronously positioned through the Beidou positioning module, and is directly displayed through the liquid crystal display screen and simultaneously transmitted to the background terminal equipment, the construction quality of the solidified soil roadbed is monitored in real time, and the detection efficiency and the detection quality of the solidified soil roadbed are obviously improved.
Description
Technical Field
The invention relates to the technical field of road detection, in particular to a comprehensive detection device and a comprehensive detection method for a solidified soil subgrade.
Background
The roadbed compactness is an index needing strict control in highway construction, the roadbed compactness directly influences the roadbed strength, the overall stability and the service life, if the requirement cannot be met, the use performance of a highway in the future is greatly influenced, and the roadbed mixing uniformity directly influences the compactness, so before the roadbed is formally used, strict detection is carried out, only qualified products are allowed to be used, the detection condition of a traditional detection mechanism is only detected in the hard degree of the pavement, the thorough inspection of the stirring degree and the hard degree in the roadbed is caused, and the problem that part of the roadbed is cracked can be caused when the roadbed is used in the later period.
Chinese patent discloses a device and a method for rapidly detecting the compaction degree of a road filling foundation (publication number: CN109763476A), the technical hammer of the patent is in a conical shape, and the rear end can be connected with a calibration rod and a counterweight limit rod piece; the calibration rods can be connected with the falling hammer through screws, and the counterweight limiting rod piece can be connected with the counterweight; the device durability and accuracy are guaranteed, the compaction degree of the soil-filling roadbed can be rapidly measured, the mixing uniformity of the soil roadbed cannot be detected, the compaction degree is inconvenient to detect, positioning and synchronous monitoring cannot be carried out, damage to soft roadbeds is still unavoidable, and accordingly follow-up repairing to the detected road surface is achieved, and trouble and labor are wasted.
Disclosure of Invention
The invention provides a comprehensive detection device and a detection method for a solidified soil subgrade, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the detection device comprises a locking frame, a detection box is arranged on the locking frame, a pull rod is arranged on one side of the locking frame, the pull rod is rotatably connected with the locking frame, a moving component and an ultrasonic component are arranged at the bottom end of the locking frame, a push rod component is arranged on one side of the detection box, which is far away from the pull rod, a support tube is arranged at the upper end of the detection box, a Beidou positioning module is arranged at the top end of the support tube, a conveying component is arranged at the lower end of the inner part of the detection box, a ground penetrating radar is arranged on one side of the inner part of the detection box, which is close to the conveying component, an energy spectrometer is arranged at the upper end of the inner part of the detection box, a sample outlet component is arranged on one side of the inner part of the box shell, which is close to the sample outlet component, the locking frame is used for locking the detection box, avoiding the detection box from being damaged due to collision and other problems, can be in the same place detection device and outside vehicle connection, or direct with the hand push can, ground penetrating radar is by signal processor, data memory, radar receiver, radar transmitter, separator and antenna are constituteed, radar transmitter transmission radio frequency signal, subsequently by radar receiver acceptance signal, and by signal processor analysis processes, and transmit the analytical data in the data memory, send radio frequency signal alright detect the compactness of dirt road bed through ground penetrating radar, big dipper orientation module is by data register, big dipper transmitter module and big dipper receiver module are constituteed, the position of the sample in the testing process and the accurate positioning of the position of traveling can be accomplished.
The push rod component comprises a group of outer sleeves, each outer sleeve is internally provided with an inner sleeve, the inner sleeve is connected with the outer sleeves in a sliding manner, a hand-screwing screw is arranged at the joint of the outer sleeve and the inner sleeve, the upper end of the outer sleeve is provided with a liquid crystal display, one side of the upper end of the outer sleeve, which is close to the liquid crystal display, is provided with a handle, the lower end of each inner sleeve is respectively connected with a fixed block, the joint of the inner sleeve and the fixed block is provided with a rotating head, the rotating head is fixedly connected with the fixed block through a locking screw, the fixed block is fixedly connected with a locking frame, when the detection device needs to be pushed manually, the handle can be pushed to move, the length between the inner sleeve and the outer sleeve can be adjusted simultaneously, after the adjustment is completed, the hand-screwing screw can complete the length between the inner sleeve and the outer sleeve, so that the pushing process is not too labor-intensive, meanwhile, the liquid crystal display screen can collect data transmitted from the energy spectrometer and the radar device, people can directly observe data changes, the angle between the inner sleeve and the locking frame can be adjusted in the pushing process, and the liquid crystal display screen can be fully suitable for detection on various grounds and under various stress conditions.
The moving assembly comprises a moving wheel, the moving wheel is rotationally connected with an expansion shaft, the expansion shaft is of a multi-section structure, each section of the expansion shaft is slidably connected, a plurality of expansion wheels are arranged in the moving wheel, the expansion wheels are of a multi-section structure, each section of the expansion wheels is connected through an expansion rolling sheet, one side, close to each other, of each expansion wheel is of a wedge surface structure, the expansion wheels are rotationally connected with each section of the expansion shaft respectively, the expansion shaft is connected with a locking frame, a telescopic hydraulic rod is arranged in the expansion shaft, the output end of the telescopic hydraulic rod is fixedly connected with one end of the outer side of the expansion shaft, the telescopic hydraulic rod is connected with the ultrasonic assembly through a lead, when the ultrasonic assembly detects that the ground is in a soft state, the telescopic hydraulic rod can work and the expansion shaft can stretch, so that the expansion wheels on the expansion shaft are taken out, the expansion wheels can be expanded and keep the radius the same as that of the moving wheel, the contact area between the movable assembly and the ground is increased, the damage to the roadbed is reduced, and meanwhile, the problem that the detection device collapses can be avoided.
The sampling assembly comprises a first electric cylinder, a sampling motor and a gear box are arranged at the bottom end of the first electric cylinder, the input end of the gear box is connected with the output end of the sampling motor, a fixing rod is fixedly connected with the output end of the gear box, an external thread sampling cylinder is fixedly connected with the bottom end of the fixing rod, a conical head is fixedly connected with one side of the bottom end of the external thread sampling cylinder, the top end of the first electric cylinder is fixed at the inner side of the detection box, the first electric cylinder can work to drive the sampling motor and the gear box to move, in the moving process, the sampling motor rotates and transmits power into the gear box, the gear box acts on the fixing rod, the fixing rod rotates along with the fixing rod, the conical head is inserted into a roadbed, the external thread sampling cylinder can sink along with the movement of the first electric cylinder, samples are collected in the external thread sampling cylinder, and finally the output end of the first electric cylinder moves upwards, the material is retrieved into the test chamber.
Go out the appearance subassembly including going out the appearance motor, it sets up in the detection case to go out the appearance motor, the output end fixedly connected with external screw thread drill bit of going out the appearance motor, and go out the electronic jar of one end fixedly connected with third in the outside of appearance motor, the electronic jar of somatic part of third and detection incasement wall fixed connection, the electronic jar output of third removes, be close to the external screw thread sampler barrel, it rotates to go out the operation of appearance motor and drive the external screw thread drill bit, first electronic jar rises, can make the external screw thread sampler barrel of exploring of external screw thread drill bit, along with rotatory, the sample of taking out will fall on conveying assembly, conveying assembly will take the sample to remove, send to and wait to detect the region.
The conveying assembly comprises a screw motor, the screw motor is arranged at the bottom end inside the detection box, a ball screw is fixedly connected to the output end of the screw motor, the ball screw is rotatably connected with the detection box, a nut pair is arranged on the outer side of the ball screw, the nut pair is meshed with the ball screw, a lower plate is fixedly connected to the upper end of the nut pair, a folding frame is connected to the upper end of the lower plate, an upper plate is connected to the upper end of the folding frame, a second electric cylinder is arranged on the inner side of the folding frame, a sample plate is arranged on the upper end of the upper plate, the sample plate is slidably connected with the inner wall of the detection box, when a sampled sample is fed into the detection box, the screw motor works to drive the ball screw to rotate, the nut pair is meshed with the ball screw, the nut pair can move, the nut pair can drive the sample plate to move, and when the sample plate obtains the sampled sample, the sample can move, finally move to the energy spectrometer below, the electronic jar of second operation afterwards for folding connect can rise, near the appearance subassembly of play, make to obtain the appearance subassembly and obtain the sample simpler.
The ultrasonic assembly comprises ultrasonic transmitters, the ultrasonic transmitters are fixedly connected with a locking frame, ultrasonic receiving boxes are respectively arranged on two sides of each ultrasonic transmitter, the ultrasonic receiving boxes are slidably connected with the locking frame, a sound sensing film is respectively arranged in each ultrasonic receiving box, one side of each sound sensing film is fixedly connected with the ultrasonic receiving box, one side of each sound sensing film, far away from the ultrasonic receiving box, is provided with a movable connecting rod, the movable connecting rods are respectively slidably connected with the ultrasonic receiving boxes through springs, one end of each movable connecting rod, far away from the sound sensing film, is provided with a movable magnetic strip, the movable magnetic strip is arranged in an electricity generating coil, the electricity generating coil is arranged on the ultrasonic receiving boxes, the electricity generating coil is connected with a rectifier through a lead, the rectifier is arranged on the locking frame, the rectifier is respectively connected with a telescopic hydraulic rod and a liquid crystal display screen through leads, and in the moving process, the ultrasonic transmitter transmits ultrasonic waves, the ultrasonic waves enter the ground and rebound, the reflected ultrasonic waves fall on the sound sensing film and the sound sensing film vibrates, the movable connecting rod is driven to move in the vibration process, the movable magnetic strip is driven to move in the movement process, current can appear in the power generation coil in the movement process, the current can enter the rectifier, the rectifier senses the current change, the power supply time length is adjusted according to the generated current, the telescopic length of the telescopic hydraulic rod is controlled, when the ground is soft, the rebounded ultrasonic waves can greatly reduce the vibration, the vibration generated by the sound sensing film is greatly reduced, the generated electricity is reduced, the length of the telescopic hydraulic rod controlled by the rectifier can be increased along with the expansion, otherwise, the length of the telescopic hydraulic rod controlled by the rectifier is increased, the current information generated at the same time will also be passed to the liquid crystal display in addition to the data generated by the radar means.
A detection method for a solidified soil roadbed comprises the following steps:
the method comprises the following steps: when the detection is carried out, the detection device is positioned on a detected roadbed, radio frequency with known waveform is generated by a radar transmitter, the radio frequency is transmitted to an antenna after being separated by a separator, the electromagnetic wave is directionally radiated to the underground by the antenna, reflected waves of different underground medium interfaces are received, when the electromagnetic wave is transmitted in a medium, the path, the electromagnetic field intensity and the waveform of the electromagnetic wave change along with the change of the electromagnetic property of the medium passing through, the compaction degree of the roadbed is judged according to the received callback time, amplitude, waveform and frequency, the difference of the radar wave frequency reflects the difference of the compaction degree through the undisturbed soil section and the slope surface after vibroflotation, and then the compaction degree of the roadbed is judged, and the detection principle is as follows: the ground penetrating radar cannot directly identify the density and the compactness, and the ground penetrating radar is realized based on the change of the medium constant, because the change of the density and the compactness causes the change of the medium constant, and since the roadbed mixed material consists of three-phase media of solid, liquid and gas, the medium constant of the roadbed mixed material is related to the root mean square and the volume of the medium constant of the three-phase medium consisting of the roadbed mixed material, and the formula is as follows:
in the above formula (1), the dielectric constant, ε, is a roadbed mixed material s 、ε w 、ε a Dielectric constant, theta, of three-phase media, solid, liquid and gaseous, respectively s 、θ w 、θ a The volume ratios of solid, liquid and gaseous three-phase media, respectively, are obvious; theta s +θ w + θ a ＝1
The density formula of the roadbed mixed material is as follows:
γ c v c ＝γ s v s +γ l v l +γ g v g (2)
in the above formula (2), γ c And v c Density and volume of mixed materials for road bed, gamma s And v s Density and volume in solid state, gamma l And v l Density and volume in liquid state, gamma g And v g Is the density and volume of air
Calculating the medium constant and density of the mixed material of the subgrade base layer through formulas (1) and (2); the degree of compaction is converted from the medium constant and the density.
Step two: the sampling assembly takes a sample and conveys the sample to the sample tray through the sample outlet assembly, and then the conveying assembly conveys the sample to the position below the spectrometer;
step three; the sample chamber is vacuumized by a vacuum system, under the vacuum environment, an ion source emits electron beams to bombard the surface of a sample, the soil of the sample is excited to emit characteristic X rays,
detecting X rays through an X-ray detector, tracking the content and distribution of phosphorus in the curing agent according to the intensity of the characteristic X rays so as to determine the mixing uniformity, displaying the mixing uniformity of the soil roadbed on a liquid crystal display screen, and sending the soil roadbed to background terminal equipment;
the detection principle is as follows: the content of phosphorus element in the sample soil and the intensity of the X-ray are obtained by measuring the intensity of the X-ray, and a quantitative analysis formula of the observed intensity of the X-ray is obtained by calculating the initial intensity of the X-ray and considering the absorption and fluorescence of the X-ray:
in the above formula, C i Is a constant number of times, and is, R i backscatter correction factor, omega i Emissivity of X-rays, Q i Is an ionization cross section, N o Is an Avogastron constant, A o Is an atomic value, f (x) is an absorption correction factor, 1+ gamma i And starting the north dipper positioning component for the fluorescence correction factor, recording the position, storing the data and transmitting the data into the background terminal.
Step four: ultrasonic waves are emitted, the traveling width of the wheel is controlled by the reflected energy of the ultrasonic waves, and the contact area of the wheel changes along with the change of the reflected ultrasonic energy.
Compared with the prior art, the invention has the beneficial effects that: 1. according to the invention, the mixing uniformity and the compactness of the solidified soil roadbed can be synchronously detected through the energy spectrometer and the ground penetrating radar, the measured position can be synchronously positioned through the Beidou positioning module, and is directly displayed through the liquid crystal display screen and simultaneously transmitted to the background terminal equipment, the construction quality of the solidified soil roadbed is monitored in real time, and the detection efficiency and the detection quality of the solidified soil roadbed are obviously improved;
2. the invention adopts the structure of automatically adjusting the width of the travelling wheel according to the road condition, the structure can ensure that the detection device can constantly maintain a certain distance with the roadbed in the travelling process, the damage of the sampling assembly caused by the neglect of the detection device in the detection process is avoided, the detection error problem caused by the instability of the vehicle body in the detection process is also avoided, meanwhile, the self-damping effect of the tension wheel is realized, and the stability of the vehicle body can be kept without adding other structures.
3. The invention adopts the structure that the ultrasonic component controls the moving component, the ultrasonic component not only can expand or contract the moving component, but also can detect the ground by ultrasonic waves in the moving process, so that the full-range scanning of a roadbed is realized, the data presentation of a radar device is assisted, and the detection of the radar device is proved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the inspection box of the present invention;
FIG. 3 is a schematic view of the interior of the push rod assembly of the present invention;
FIG. 4 is a schematic structural view of an ultrasound assembly of the present invention;
FIG. 5 is a schematic view of the internal structure of the moving assembly of the present invention;
FIG. 6 is a schematic view of the conveyor assembly of the present invention;
FIG. 7 is a schematic view of the sample outlet assembly of the present invention;
FIG. 8 is a schematic structural view of a sampling assembly of the present invention;
FIG. 9 is a schematic view of the expanding wheel of the present invention;
FIG. 10 is a schematic diagram of the detection flow structure of the present invention;
reference numbers in the figures: 1. a detection box; 2. a pull rod; 3. a locking frame; 4. supporting a tube; 5. a Beidou positioning module; 6. a push rod assembly; 601. an outer sleeve; 602. an inner sleeve; 603. screwing the screw rod by hand; 604. a liquid crystal display screen; 605. a handle; 606. A fixed block; 607. rotating the head; 7. a moving assembly; 701. a moving wheel; 702. an expansion shaft; 703. an expansion wheel; 704. Expanding the coiled sheet; 705. a telescopic hydraulic rod; 8. an ultrasonic component; 801. an ultrasonic transmitter; 802. an ultrasonic receiving box; 803. a sound-sensitive film; 804. moving the connecting rod; 805. moving the magnetic strip; 806. an electricity generating coil; 807. a rectifier; 9. a delivery assembly; 901. a screw motor; 902. a ball screw; 903. a nut pair; 904. a lower plate; 905. a folding frame; 906. an upper plate; 907. a second electric cylinder; 908. a sample tray; 10. a ground penetrating radar; 11. an energy spectrometer; 12. a sample outlet assembly; 1201. a sample outlet motor; 1202. an externally threaded drill bit; 1203. a third electric cylinder; 13. a sampling assembly; 1301. a first electric cylinder; 1302. a sampling motor; 1303. a gear case; 1304. fixing the rod; 1305. an external thread sampling cylinder; 1306. a conical head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 10, the present invention provides a technical solution:
the detection device comprises a locking frame 3, a detection box 1 is arranged on the locking frame 3, one side of the locking frame 3 is provided with a pull rod 2, the pull rod 2 is rotatably connected with the locking frame 3, the bottom end of the locking frame 3 is provided with a moving component 7 and an ultrasonic component 8, one side of the detection box 1, which is far away from the pull rod 2, is provided with a push rod component 6, the upper end of the detection box 1 is provided with a supporting tube 4, the top end of the supporting tube 4 is provided with a Beidou positioning module 5, the lower end of the interior of the detection box 1 is provided with a conveying component 9, one side of the interior of the detection box 1, which is close to the conveying component 9, is provided with a ground penetrating radar 10, the upper end of the interior of the detection box 1, which is close to the conveying component 9, one side of the interior of the detection box 1, which is close to the spectrometer 11, is provided with a sample outlet component 12, one side of the interior of the box shell 1, is provided with a sampling component 13, the locking frame is used for locking the detection box, avoid the detection case to appear the damage in collision scheduling problem, when examining, can be in the same place detection device with outside vehicle connection, or direct with the hand push can, ground penetrating radar is by signal processor, data memory, radar receiver, radar transmitter, separator and antenna are constituteed, radar transmitter sends radio frequency signal, subsequently by radar receiver acceptance signal, and by signal processor analysis processes, and with the transmission of analysis data to data memory in, send radio frequency signal alright detect the compactness of dirt road bed through ground penetrating radar, big dipper orientation module is by data register, big dipper transmitter module and big dipper receiver module are constituteed, can accomplish the position of the sample in the testing process and the accurate positioning of the position of traveling.
The push rod assembly 6 comprises a group of outer sleeves 601, an inner sleeve 602 is arranged in each outer sleeve 601, the inner sleeve 602 is connected with the outer sleeve 601 in a sliding manner, a hand-screwing screw 603 is arranged at the joint of the outer sleeve 601 and the inner sleeve 602, a liquid crystal display 604 is arranged at the upper end of the outer sleeve 601, a handle 605 is arranged at one side of the upper end of the outer sleeve 601 close to the liquid crystal display 604, the lower end of each inner sleeve 602 is connected with a fixed block 606, a rotating head 607 is arranged at the joint of the inner sleeve 602 and the fixed block 606, the rotating head 607 is fixedly connected with the fixed block 606 through a locking screw, the fixed block 606 is fixedly connected with the locking frame 3, when the detection device needs to be pushed manually, the handle can be pushed to move, the length between the inner sleeve and the outer sleeve can be adjusted, and after the adjustment is completed, the length between the inner sleeve and the outer sleeve can be completed by screwing the hand-screwing screw, the liquid crystal display screen can collect data transmitted from the energy spectrometer and the radar device, can be used for people to directly observe data change, can adjust the angle between the inner sleeve and the locking frame in the pushing process, and can be fully suitable for detection on various grounds and under various stress conditions.
The moving assembly 7 comprises a moving wheel 701, the moving wheel 701 is rotatably connected with an expansion shaft 702, the expansion shaft 702 is of a multi-section structure, each section in the expansion shaft 702 is in sliding connection, a plurality of expansion wheels 703 are arranged in the moving wheel 701, each expansion wheel 703 is of a multi-section structure, each section on each expansion wheel 703 is respectively connected through an expansion rolling sheet 704, the side, close to each other, of each expansion wheel 703 is of a wedge surface structure, each expansion wheel 703 is respectively rotatably connected with each section on the expansion shaft 702, the expansion shaft 702 is connected with a locking frame 3, a telescopic hydraulic rod 705 is arranged in the expansion shaft 702, the output end of the telescopic hydraulic rod 705 is fixedly connected with one end of the outer side of the expansion shaft 702, the telescopic hydraulic rod 705 is connected with an ultrasonic assembly 8 through a conducting wire, when the ultrasonic assembly detects that the ground is in a soft state, the telescopic hydraulic rod can work and enable the expansion shaft to stretch, so as to bring out the expansion wheels on the expansion shaft, the expansion wheel will expand to keep and remove the radius of taking turns the same size, make the area of contact increase on removal subassembly and ground, when reducing the injury to the road bed, can also avoid detection device to appear the problem of collapsing.
The sampling assembly 13 comprises a first electric cylinder 1301, a sampling motor 1302 and a gear box 1303 are arranged at the bottom end of the first electric cylinder 1301, the input end of the gear box 1303 is connected with the output end of the sampling motor 1302, the output end of the gear box 1303 is fixedly connected with a fixed rod 1304, the bottom end of the fixed rod 1304 is fixedly connected with an external thread sampling cylinder 1305, one side of the bottom end of the external thread sampling cylinder 1305 is fixedly connected with a conical head 1306, the top end of the first electric cylinder 1301 is fixed at the inner side of the detection box 1, the first electric cylinder works to drive the sampling motor and the gear box to move, in the moving process, the sampling motor rotates and transmits power into the gear box, the gear box applies power on the fixed rod, the fixed rod rotates along with the conical head, the external thread sampling cylinder sinks along with the movement of the first electric cylinder, and samples to be sampled are collected in the external thread sampling cylinder, and finally, the output end of the first electric cylinder moves upwards to withdraw the material into the detection box.
Go out appearance subassembly 12 including going out appearance motor 1201, it sets up in detection case 1 to go out appearance motor 1201, go out output fixedly connected with external screw thread drill bit 1202 of appearance motor 1201, and the one end fixedly connected with third electric cylinder 1203 in the outside of appearance motor 1201, third electric cylinder 1203 cylinder portion and detection case 1 inner wall fixed connection, the electronic jar output of third removes, be close to the external screw thread sampler barrel, it drives the external screw thread drill bit and rotates to go out the operation of appearance motor, first electric cylinder rises, can make the external screw thread drill bit visit the external screw thread sampler barrel, along with rotatory, the sample of taking out will fall on conveying assembly, conveying assembly will take the sample to remove, send to and wait to detect the region.
The conveying assembly 9 comprises a screw motor 901, the screw motor 901 is arranged at the bottom end inside the detection box 1, the output end of the screw motor 901 is fixedly connected with a ball screw 902, the ball screw 902 is rotatably connected with the detection box 1, a nut pair 903 is arranged outside the ball screw 902, the nut pair 903 is engaged with the ball screw 902, the upper end of the nut pair 903 is fixedly connected with a lower plate 904, the upper end of the lower plate 904 is connected with a folding frame 905, the upper end of the folding frame 905 is connected with an upper plate 906, the inner side of the folding frame 905 is provided with a second electric cylinder 907, the upper end of the upper plate 906 is provided with a sample disc 908, the sample disc 908 is slidably connected with the inner wall of the detection box 1, when a sample to be sampled is fed into the detection box, the screw motor works to drive the ball screw to rotate, the nut pair is engaged with the ball screw, so that the nut pair can move, the nut pair can drive the sample disc to move, can move after getting the sample that the sample dish obtained the sample, finally move to the energy spectrometer below, the electronic jar of second operation afterwards for folding connect can rise to out near appearance subassembly, make to obtain appearance subassembly and obtain the sample simpler.
The ultrasonic assembly 8 comprises an ultrasonic transmitter 801, the ultrasonic transmitter 801 is fixedly connected with the locking frame 3, ultrasonic receiving boxes 802 are respectively arranged on two sides of the ultrasonic transmitter 801, the ultrasonic receiving boxes 802 are slidably connected with the locking frame 3, a sound sensing film 803 is respectively arranged in each ultrasonic receiving box 802, one side of the sound sensing film 803 is fixedly connected with the ultrasonic receiving boxes 802, a movable connecting rod 804 is arranged on one side of the sound sensing film 803, which is far away from the ultrasonic receiving boxes 802, the movable connecting rods 804 are respectively slidably connected with the ultrasonic receiving boxes 802 through springs, a movable magnetic strip 805 is arranged on one end of each movable connecting rod 804, which is far away from the sound sensing film 803, the movable magnetic strip 805 is arranged in an electricity generating coil 806, the electricity generating coil 806 is arranged on the ultrasonic receiving boxes 802, the electricity generating coil 806 is connected with a rectifier through a lead, the rectifier 807 is arranged on the locking frame 3, the rectifier 807 is connected with a telescopic hydraulic rod 705, the telescopic hydraulic rod 807, The liquid crystal display screen 604 is respectively connected through a wire, in the moving process, the ultrasonic wave emitter emits ultrasonic waves, the ultrasonic waves enter the ground bottom and rebound, the reflected ultrasonic waves fall on the sound sensing film and generate vibration, the moving connecting rod is driven to move in the vibration process, the moving magnetic stripe is driven to move in the moving process, current can appear in the power generation coil in the moving process, the current can enter the rectifier, the rectifier senses the current change and adjusts the power supply duration according to the magnitude of the generated current, so that the telescopic length of the telescopic hydraulic rod is controlled, when the ground is soft, the rebounded ultrasonic waves can greatly reduce the vibration, the vibration generated by the sound sensing film can be greatly reduced, the generated electricity is reduced, and the extension length of the telescopic hydraulic rod controlled by the rectifier can be increased accordingly, on the contrary, the length of the telescopic hydraulic rod controlled by the rectifier is reduced, and the generated current information is transmitted to the liquid crystal display to be matched with the data generated by the radar device.
A detection method for a solidified soil roadbed comprises the following steps:
the method comprises the following steps: when the detection is carried out, the detection device is positioned on a detected roadbed, radio frequency with known waveform is generated by a radar transmitter, the radio frequency is transmitted to an antenna after being separated by a separator, the electromagnetic wave is directionally radiated to the underground by the antenna, reflected waves of different underground medium interfaces are received, when the electromagnetic wave is transmitted in a medium, the path, the electromagnetic field intensity and the waveform of the electromagnetic wave change along with the change of the electromagnetic property of the medium passing through, the compaction degree of the roadbed is judged according to the received callback time, amplitude, waveform and frequency, the difference of the radar wave frequency reflects the difference of the compaction degree through the undisturbed soil section and the slope surface after vibroflotation, and then the compaction degree of the roadbed is judged, and the detection principle is as follows: the ground penetrating radar cannot directly identify the density and the compactness, and the ground penetrating radar is realized based on the change of the medium constant, because the change of the density and the compactness causes the change of the medium constant, and since the roadbed mixed material consists of three-phase media of solid, liquid and gas, the medium constant of the roadbed mixed material is related to the root mean square and the volume of the medium constant of the three-phase medium consisting of the roadbed mixed material, and the formula is as follows:
in the above formula (1), epsilon c Is the dielectric constant, epsilon, of the roadbed mixed material s 、ε w 、ε a The medium constants, theta, of three-phase media, solid, liquid and gaseous, respectively s 、θ w 、θ a Volume ratio of three-phase media, solid, liquid and gaseous respectively, obviously theta s +θ w + θ a ＝1；
The density formula of the roadbed mixed material is as follows:
γ c v c ＝γ s v s +γ l v l +γ g v g (2)
in the above formula (1), γ c And v c Density and volume of mixed materials for road bed, gamma s And v s Density and volume in solid state, gamma l And v l Density and volume in liquid state, gamma g And v g Is the density and volume of air
Calculating the medium constant and density of the mixed material of the subgrade base layer through the formulas (1) and (2); the degree of compaction is converted from the medium constant and the density.
Step two: the sampling assembly takes a sample and conveys the sample to the sample tray through the sample outlet assembly, and then the conveying assembly conveys the sample to the position below the spectrometer;
step three; the sample chamber is vacuumized by a vacuum system, and the surface of a sample is bombarded by an electron beam emitted by an ion source in a vacuum environment to excite the sample soil to emit characteristic X rays,
detecting X rays through an X-ray detector, tracking the content and distribution of phosphorus in the curing agent according to the intensity of the characteristic X rays so as to determine the mixing uniformity, displaying the mixing uniformity of the soil roadbed on a liquid crystal display screen, and sending the soil roadbed to background terminal equipment;
the detection principle is as follows: the content of phosphorus element in the sample soil and the intensity of the X-ray are obtained by measuring the intensity of the X-ray, and a quantitative analysis formula of the observed intensity of the X-ray is obtained by calculating the initial intensity of the X-ray and considering the absorption and fluorescence of the X-ray:
in the above formula, C i Is a constant, R i Backscattering correction factor, omega i Emissivity of X-rays, Q i Is an ionization cross section, N o Is an Avogastron constant, A o Is an atomic value, f (x) is an absorption correction factor, 1+ gamma i Is a fluorescence correction factor.
Step four: ultrasonic waves are emitted, the reflected energy of the ultrasonic waves controls the traveling width of the wheel, and the contact area of the wheel changes with the change of the reflected ultrasonic energy.
The working principle of the invention is as follows: in the detection process of the detection device, the detection box 1 is always fixed on the locking frame 3, the damage of the detection box 1 caused by collision and other problems is avoided, the detection device can be connected with an external vehicle or directly pushed by hand according to the actual condition of a roadbed and the size of a detection range, the ultrasonic component 8 emits ultrasonic waves in the advancing process, the contact area of the moving component 7 and the ground is controlled by detecting the rebound frequency and the rebound energy of the ultrasonic waves, the ground penetrating radar 10 continuously emits electromagnetic waves, when the electromagnetic waves are propagated in a medium, the path, the electromagnetic field intensity and the waveform of the electromagnetic waves change along with the change of the electromagnetic property of the medium passing through, and the compactness of the roadbed is judged according to the time, the amplitude, the waveform and the frequency of the received echo, through the domatic after original state soil section and the shake towards rolling, the difference of closely knit degree is reflected to the difference of radar wave frequency, and then judge the compactness of road bed, big dipper orientation module 5 is by data register, big dipper transmitter module and big dipper receiver module are constituteed, the accurate positioning of the position of accomplishing the sample in the testing process and the position of traveling can be accomplished, get material subassembly 13 afterwards and acquire suitable road bed sample, and send 11 below to the energy spectrometer through ejection of compact subassembly 12 and delivery module 9, carry out the evacuation operation by vacuum system in the detection case 1 afterwards, energy spectrometer 11 transmission X ray, survey X ray through X ray detector, according to the intensity of characteristic X ray, track the content and the distribution of phosphorus element in the curing agent, thereby confirm the homogeneity of mixing.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a comprehensive testing device for solidifying dirt road bed which characterized in that: the detection device comprises a locking frame (3), a detection box (1) is arranged on the locking frame (3), a pull rod (2) is arranged on one side of the locking frame (3), the pull rod (2) is rotatably connected with the locking frame (3), a moving component (7) and an ultrasonic component (8) are arranged at the bottom end of the locking frame (3), a push rod component (6) is arranged on one side, away from the pull rod (2), of the detection box (1), a support tube (4) is arranged at the upper end of the detection box (1), a Beidou positioning module (5) is arranged at the top end of the support tube (4), a conveying component (9) is installed at the lower end of the interior of the detection box (1), a ground penetrating radar (10) is installed on one side, close to the conveying component (9), of the interior of the detection box (1), an energy spectrometer (11) is installed at the upper end, close to the conveying component (9), of the interior of the detection box (1), one side that the inside of detection case (1) is close to energy spectrometer (11) is provided with out appearance subassembly (12), sample subassembly (13) are installed to one side that the inside of case casing (1) is close to out appearance subassembly (12).
2. The comprehensive detection device for the solidified soil subgrade of claim 1, which is characterized in that: push rod subassembly (6) are including a set of outer tube (601), are provided with interior sleeve pipe (602) in every outer tube (601) respectively, interior sleeve pipe (602) and outer tube (601) sliding connection, outer tube (601) are provided with hand with the handing-over department of interior sleeve pipe (602) and twist screw rod (603), the upper end of outer tube (601) is provided with liquid crystal display (604), and one side that the upper end of outer tube (601) is close to liquid crystal display (604) is provided with handle (605), every the lower extreme of interior sleeve pipe (602) is connected with fixed block (606) respectively, the handing-over department of interior sleeve pipe (602) and fixed block (606) is provided with rotating head (607), rotating head (607) and fixed block (606) are through locking screw rod fixed connection, fixed block (606) and locking frame (3) fixed connection.
3. The comprehensive detection device for the solidified soil subgrade of claim 2, which is characterized in that: the moving assembly (7) comprises a moving wheel (701), the moving wheel (701) is rotatably connected with an expanding shaft (702), the expanding shaft (702) is of a multi-section structure, each section in the expanding shaft (702) is connected in a sliding way, a plurality of expansion wheels (703) are arranged in the moving wheel (701), the expansion wheels (703) are of a multi-section structure, each section of the expanding wheel (703) is respectively connected through an expanding rolling sheet (704), one side of the expanding wheel (703) close to each other is of a wedge surface structure, the expanding wheel (703) is respectively connected with each section of the expanding shaft (702) in a rotating way, the expansion shaft (702) is connected with the locking frame (3), a telescopic hydraulic rod (705) is arranged in the expansion shaft (702), the output end of the telescopic hydraulic rod (705) is fixedly connected with one end of the outer side of the expansion shaft (702), the telescopic hydraulic rod (705) is connected with the ultrasonic assembly (8) through a lead.
4. The comprehensive detection device for the solidified soil subgrade of claim 1, which is characterized in that: the sampling assembly (13) comprises a first electric cylinder (1301), a sampling motor (1302) and a gear box (1303) are arranged at the bottom end of the first electric cylinder (1301), the input end of the gear box (1303) is connected with the output end of the sampling motor (1302), an output end fixing rod (1304) of the gear box (1303) is fixedly connected with the fixing rod, an external thread sampling cylinder (1305) is fixedly connected with the bottom end of the fixing rod (1304), a conical head (1306) is fixedly connected with one side of the bottom end of the external thread sampling cylinder (1305), and the top end of the first electric cylinder (1301) is fixed on the inner side of the detection box (1).
5. The comprehensive detection device for the solidified soil subgrade of claim 1, which is characterized in that: the sample outlet assembly (12) comprises a sample outlet motor (1201), the sample outlet motor (1201) is arranged in the detection box (1), an external thread drill bit (1202) is fixedly connected to the output end of the sample outlet motor (1201), a third electric cylinder (1203) is fixedly connected to one end of the outer side of the sample outlet motor (1201), and the cylinder body part of the third electric cylinder (1203) is fixedly connected with the inner wall of the detection box (1).
6. The comprehensive detection device for the solidified soil subgrade of claim 1, which is characterized in that: the conveying assembly (9) comprises a screw motor (901), the screw motor (901) is arranged at the bottom end inside the detection box (1), the output end of the screw motor (901) is fixedly connected with a ball screw (902), the ball screw (902) is rotatably connected with the detection box (1), a nut pair (903) is arranged on the outer side of the ball screw (902), the nut pair (903) is meshed with the ball screw (902), the upper end of the nut pair (903) is fixedly connected with a lower plate (904), the upper end of the lower plate (904) is connected with a folding frame (905), the upper end of the folding frame (905) is provided with an upper plate (906), a second electric cylinder (907) is arranged on the inner side of the folding frame (905), a sample disc (908) is arranged on the upper end of the upper plate (906), and the sample disc (908) is slidably connected with the inner wall of the detection box (1).
7. The comprehensive detection device for the solidified soil subgrade of claim 3, which is characterized in that: the ultrasonic assembly (8) comprises an ultrasonic transmitter (801), the ultrasonic transmitter (801) is fixedly connected with a locking frame (3), ultrasonic receiving boxes (802) are respectively arranged on two sides of the ultrasonic transmitter (801), the ultrasonic receiving boxes (802) are slidably connected with the locking frame (3), a sound sensing film (803) is respectively arranged in each ultrasonic receiving box (802), one side of each sound sensing film (803) is fixedly connected with the corresponding ultrasonic receiving box (802), a movable connecting rod (804) is arranged on one side, away from the corresponding ultrasonic receiving box (802), of each sound sensing film (803), the movable connecting rod (804) is slidably connected with the corresponding ultrasonic receiving box (802) through springs, a movable magnetic strip (805) is arranged at one end, away from the sound sensing film (803), of each movable connecting rod (804), and the movable magnetic strip (805) is arranged in a power generation coil (806), the electricity generating coil (806) is arranged on the ultrasonic receiving box (802), the electricity generating coil (806) is connected with the rectifier (807) through a conducting wire, the rectifier (807) is arranged on the locking frame (3), and the rectifier (807) is connected with the telescopic hydraulic rod (705) and the liquid crystal display screen (604) through conducting wires respectively.
8. A detection method for a solidified soil subgrade is characterized by comprising the following steps:
the detection method comprises the following steps:
the method comprises the following steps: when the detection is carried out, the detection device is positioned on the detected roadbed, the radar device works, and the compaction degree of the soil roadbed is detected;
step two: sampling and sending the sample to the lower part of the analysis component;
step three; emitting X-rays, checking the absorption intensity of the X-rays, and detecting the mixing uniformity of the roadbed;
step four: ultrasonic waves are emitted, the traveling width of the wheel is controlled by the reflected energy of the ultrasonic waves, and the contact area of the wheel changes along with the change of the reflected ultrasonic energy.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115479186A (en) * | 2022-09-09 | 2022-12-16 | 江西交通咨询有限公司 | Highway bridge roadbed pavement supervision device and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115479186A (en) * | 2022-09-09 | 2022-12-16 | 江西交通咨询有限公司 | Highway bridge roadbed pavement supervision device and method thereof |
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