CN110308169A - A kind of TBM slag piece ray back scattering real time scan imaging device and method - Google Patents
A kind of TBM slag piece ray back scattering real time scan imaging device and method Download PDFInfo
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- CN110308169A CN110308169A CN201910734766.5A CN201910734766A CN110308169A CN 110308169 A CN110308169 A CN 110308169A CN 201910734766 A CN201910734766 A CN 201910734766A CN 110308169 A CN110308169 A CN 110308169A
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N23/20—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 using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
- G01N23/203—Measuring back scattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N23/20—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 using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
- G01N23/20008—Constructional details of analysers, e.g. characterised by X-ray source, detector or optical system; Accessories therefor; Preparing specimens therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N23/20—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 using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
- G01N23/20008—Constructional details of analysers, e.g. characterised by X-ray source, detector or optical system; Accessories therefor; Preparing specimens therefor
- G01N23/20025—Sample holders or supports therefor
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- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses a kind of TBM slag piece ray back scattering real time scan imaging device and methods, it, which solves scene in the prior art, can only obtain the visual condition of slag piece, carry out mechanical analysis intricate operation the problem of time-consuming of slag piece, with can work continuously, and the beneficial effect of the inside and outside feature of slag piece is obtained in real time, its scheme is as follows: a kind of TBM slag piece ray back scattering real time scan imaging device and method, including can be across TBM conveyer belt or set on the bracket of TBM conveyor belt two sides；X-ray back scattering scanning head is set in shell, and shell is supported by bracket, and shell can be set to the top of TBM conveyer belt, and X-ray back scattering scanning head detects the slag piece that TBM conveyer belt transmits and receives data information；Computing terminal, X-ray back scattering scanning head are connect with computing terminal, and computing terminal obtains size, shape and the slag piece internal feature of slag piece according to the received data information of X-ray back scattering scanning head.
Description
Technical field
The present invention relates to earthwork engineering fields, are imaged and fill more particularly to a kind of TBM slag piece ray back scattering real time scan
It sets and method.
Background technique
With the extensive development of infrastructure construction in china, there is an urgent need to build for the quick sustainable development of national economy
The great lifeline engineering such as large quantities of water conservancies, traffic, mine.Road and rail passenger traffic railway line for freight traffic constantly extends to western part, underground
Engineering development scale constantly expands, and will build many great underground engineerings in the national following planning central and west regions, and
The more mountain and hills in west area, Deep-buried Long And Big tunnel plays a crucial role in the construction of heavy construction.Tunneling boring is hard
Rock development machine (TBM) construction tunnel has the excellent of fast driving speed, cavitation quality height, high financial profit and construction safety civilization
Gesture gradually highlights.However TBM is extremely sensitive to geological conditions, easily experience gushing water dash forward mud, landslide, card machine, etc. great peace
Full accident.Therefore, rapidly and accurately obtain the rock mass geology information of current driving paragraph, so select reasonable arrangement and method for construction and
Boring parameter is for ensureing that TBM is efficient, safety driving is most important.Wherein, TBM belt feeder is carried out the slag piece size come, shape
The information such as shape and rock powder ratio are to judge the important evidence of face region rock mass information.At the same time, slag piece information also can be used
In the working condition for judging current TBM hob, if slag piece is more flat, sheet is in the majority, then hobboing cutter is in good condition；If slag piece is occupied in blocky
More, then hob abrasion is more serious, should replace in time and wear more serious hobboing cutter, improves drivage efficiency.
However, what inventor's discovery mainly faced asks for the method for obtaining rock mass parameter and country rock grade at present
Topic includes " it is low to obtain period length, low efficiency, accuracy rate " etc., is specifically had the following problems:
(1) if you need to obtain more accurate rock mass parameter, core-drilling at the scene is needed, is carried out indoors after processing cutting
Mechanics parameter test experiments, process is tedious and time-consuming, and rock mass information obtained is unable to satisfy TBM driving quickly, dynamically
Demand.
(2) belt feeder transport slag tap when the person of sending someone carry out scene check analysis, influenced by site work environment, difficulty compared with
Greatly, and manual analysis cannot work continuously.
(3) high-speed camera is set in the side of belt feeder, current existing High-speed Photography Analysis slag chip technology is at the scene
It is only capable of the appearance information of record surface layer slag piece, the inner case of slag piece can not be probed.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of imagings of TBM slag piece ray back scattering real time scan
Device can be scanned broken rock slag piece in TBM construction tunnel tunneling process, analyze front of tunnel heading geological condition with this,
So that TBM driver is quickly and effectively judged, adjust the mechanical parameters such as thrust, torque in time, improves TBM utilization rate, make
It tunnels more efficient.
A kind of concrete scheme of TBM slag piece ray back scattering real time scan imaging device is as follows:
A kind of TBM slag piece ray back scattering real time scan imaging device, comprising:
It can be across TBM conveyer belt or set on the bracket of TBM conveyor belt two sides；
X-ray back scattering scanning head is set in shell, and shell is supported by bracket, and shell can be set to TBM and pass
The top of band is sent, X-ray back scattering scanning head detects the slag piece that TBM conveyer belt transmits and receives data information；
Computing terminal, X-ray back scattering scanning head are connect with computing terminal, and computing terminal is scanned according to X-ray back scattering to be visited
Received data information obtains size, shape and the slag piece interior section feature (mainly crackle and trend) of slag piece.
Above-mentioned analytical equipment can be directly arranged in TBM conveyer belt, directly be scanned to the slag piece of conveyer belt transmission, X
X-ray is penetrated in slag on piece in light back scattering scanning head, can measure scattered photon corresponding to its internal variant position
Count and find out the electron density distribution in tested substance, in this way convenient for computing terminal effectively obtain the size of slag piece, shape with
And crackle in slag piece and some internal features are moved towards, by checking the information of acquisition to TBM driver, be conducive to driver in this way
Adjust boring parameter.
Further, the bracket is door shaped stent or bracket includes the branch that can be set to the TBM conveyor belt two sides
Bar, bracket are scanned and believe to the slag piece of conveyer belt convenient for X-ray back scattering scanning head in this way for being supported to shell
The acquisition of breath.
Further, the bracket is equipped with sliding rail in the lower section two sides of the shell, and slide switch door is arranged in sliding rail.Cause
There is continuity for Rock Nature, acquire one section, be acquired as needed in this way, when not acquiring, slide switch door is closed
It closes, slide switch door is identical as the length of shell, when needing to analyze slag piece, opens slide switch door, slide switch
The moving direction of door is identical as the direction of transfer of TBM conveyer belt, and the width of the width of switch gate and X-ray back scattering scanning head
It is identical.
Further, straight line driving mechanism is arranged in slide switch door one or both sides, and straight line driving mechanism is preferably straight
Line driving motor, linear drive motor are connect with controller, and controller controls the driving of linear drive motor, and controller is that can compile
The PLC controller of journey, the controller can be set in TBM driver's cabin.
Further, the X-ray back scattering scanning head includes X-ray tube, beam collimator and search receiner, light
Beam collimator stays at the top of X-ray tube by radiation protective casing branch, and search receiner is set to the side of X-ray tube, X-ray back
Scattering scanning head is designed according to Compton effect, and X-ray back scattering scanning head only needs to be placed in the list of detected object
Side, i.e. X-ray tube, search receiner are located at the same end of slag piece, and X-ray tube, search receiner are respectively positioned on TBM conveyer belt slag piece
Top.
Further, in order to improve the setting stability of analytical equipment, hold-down support is arranged in the bottom of the bracket, fixed
Support can be set to the lower section of the TBM conveyer belt.
Further, the hold-down support is connect with the pillar for being used to support TBM conveyer belt, and TBM conveyer belt is usually logical
It crosses pillar and is supported in setting height, hold-down support is connect with pillar, and hold-down support and frame bottom are reliably connected by bolt,
Sufficiently improve the setting stability of device.
Further, the shell is cover type, can carry out the envelope of top and side to X-ray back scattering scanning head in this way
It closes, to prevent radiation leakage.
Further, the shell is radiation protective casing.
In addition, being equipped with industrial personal computer in TBM master control room, industrial personal computer is connect with computing terminal.Computing terminal sends data
To industrial personal computer, testing result is quickly received convenient for TBM driver.Computing terminal can be remote computer, scan and visit with X-ray back scattering
The each mechanism and TBM industrial personal computer of head are separately connected, or directly using TBM industrial personal computer as the computing terminal of the equipment, TBM
The relevant information that there is industrial personal computer display to be used to show acquisition in TBM master control room.
For overcome the deficiencies in the prior art, the present invention also provides a kind of TBM slag piece ray back scattering real time scan at
As analysis method, using a kind of TBM slag piece ray back scattering real time scan imaging device, including following content:
A kind of TBM slag piece ray back scattering real time scan imaging device is fixed at TBM conveyer belt；
X-ray back scattering scanning head is opened, the slag piece of a distance is scanned；
The ray information of collection is sent to computing terminal by X-ray back scattering scanning head；
Computing terminal passes through data processing, obtains image of this section apart from interior slag piece, reflection slag tap the size of piece, shape with
And crackle in slag piece and some internal features being moved towards, TBM driver is according to obtained image to front of tunnel heading rock mass conditions
TBM is adjusted.
Compared with prior art, the beneficial effects of the present invention are:
1) present invention is easy to operate by integrally-built setting, can be realized and works continuously, can be to TBM driving tunnel
Slag piece carries out real time scan analysis, no longer there is lag, provides weight for TBM driver's quick obtaining front of tunnel heading rock mass conditions
The reference frame wanted；And device volume is small, and it is easy to remove, it uses flexibly.
2) present invention can be installed on TBM conveyer belt, and scanning result can be sent at TBM driver within a short period of time,
The personnel of saving shut down out the time that cabin is observed outside, have ensured the personnel safety in poor construction environment, improve operating environment.
3) the integrally-built setting of the present invention, is conducive to the matched well of TBM road heading machinery parameter Yu rock mass geology situation,
TBM construction is more safe and efficient, economical, environmentally friendly.
4) present invention passes through the setting of slide switch door, and slide switch door and sliding rail can be made to cooperate, needing to carry out slag
When piece ray analysis, slide switch door is opened, radiation leakage is effectively avoided.
Detailed description of the invention
The Figure of description for constituting a part of the invention is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.
Fig. 1 is each section combination schematic diagram front view in the embodiment of the present invention.
Fig. 2 is each section combination schematic diagram sectional view in the embodiment of the present invention.
Fig. 3 is in the embodiment of the present invention in the position view of TBM installation.
Wherein: 1.X light back scattering scanning head, 2. shells, 3.X ray tube, 4. brackets, 5. hold-down supports, 6. slidings are opened
It closes the door, 7. bolts, 8. slag pieces, 9.TBM conveyer belt, 10. search receiners, a kind of 11. rock tunnel(ling) machine slag piece ray analysis dresses
It sets, 12. beam collimators.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the present invention.Unless another
It indicates, all technical and scientific terms used herein has usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this hair
It is bright to propose a kind of TBM slag piece ray back scattering real time scan imaging device, with reference to the accompanying drawings of the specification, to the present invention do into
The elaboration of one step.
Embodiment 1
In a kind of typical embodiment of the invention, as shown in Figure 1-Figure 3, a kind of TBM slag piece ray back scattering is real-time
Scanned imagery device 11, including bracket 4, bracket 4 can be arranged across TBM conveyer belt 9, and TBM conveyer belt 9 is for transmitting slag piece 8.
TBM conveyer belt 9 has the length of setting, and TBM conveyer belt 9 realizes by pillar and support that such TBM conveyer belt 9 has
There is the height of setting, 4 bottom of bracket is set to hold-down support 5, and hold-down support 5 is set to the lower section of TBM conveyer belt 9,5 bottom of hold-down support
Portion realizes by pillar and supports that posts bottom is set to ground, and hold-down support 5 is realized by bolt and bracket 4 and connected.
In some embodiments, in order to realize that bracket 4 drives movement of the radiation protective casing 2 relative to hold-down support 5, bracket
Sliding block is arranged in 4 bottoms, and hold-down support 5 is equipped with sliding rail, and sliding block and sliding rail cooperate to realize that radiation protective casing 2 is transmitted relative to TBM
The movement in strip length direction, can be according to site space, the setting position of determining device, thus effective guarantee field device and work
The safety of personnel has further facilitated motion scan moreover, sliding rail can be electric sliding rail.
Bracket 4 is door shaped stent or bracket 4 is the strut set on conveyor belt two sides, and bracket 4 supports radiation protective casing 2,
Radiation protective casing 2 is cover type structure, bottom and inner hollow, and radiation protective casing 2 is for preventing ray from leaking, radiation protective casing 2
Interior setting X-ray back scattering scanning head, X-ray back scattering scanning head are designed according to Compton Compton effect comprising
X-ray tube 3, beam collimator 12 and search receiner 10, beam collimator 12 stay at X by radiation protective casing 2
The lower section of ray tube 3, search receiner 10 are set to the side of X-ray tube 3, and beam collimator 12 passes through to the X-ray launched
The absorption of scattered rays improves the contrast of radioscopic image, and the image made is apparent, to the received data of search receiner
The three-dimensional density image of available object to be detected after progress data processing, compared to traditional x-ray scanning equipment, X-ray back
Scattering scanning head only needs to be placed in the unilateral side of detected object, i.e. transmitting is located above detected object with receiving element, i.e.,
The achievable detection to detected object.
Wherein, X-ray back scattering is collided by the free electron of incident x-ray photons and analyte and forms scattering light
Son is collected by dedicated search receiner and generates image.It is more sensitive to the object that density difference is big, in the slag piece that TBM broken rock is formed,
There may be slag piece of some inside with crack, its internal structure can not be observed from surface, which is used for slag
The scanning of piece, not only it can be observed that the size shape of slag piece, can also observe its internal some construction, be conducive to TBM driver
Better judgement is made to front rock mass situation.
2 distance TBM of cavity, that is, radiation protective casing transmission is equipped with setting in the lower section of X-ray back scattering scanning head 1
To form cavity, cavity is scanned for accommodating slag piece on TBM conveyer belt 9 and TBM conveyer belt 9, bracket 4 in X-ray back scattering height
The lower section of probe 1 is equipped with a slide switch door 6, and slide switch door 6 can cover X-ray emission pipe and search receiner, when
When needing to be scanned, slide switch door 6 is opened, and slide switch door 6 should not be too large, to prevent radiation leakage, when not needing to sweep
When retouching, shut.
It should be noted that slide switch door 6 is supported by being set to the sliding rail of 4 two sides of bracket, setting is slided in sliding rail
Dynamic door, slide switch door 6 can be realized reciprocating motion relative to sliding rail, and specifically in 6 one or both sides of slide switch door, setting is straight
Line pushing motor, linear pushing motor are connect with slide switch door 6, and linear pushing motor pushing slide switch door 6 is relative to cunning
Rail realizes straight reciprocating motion.
In some embodiments, linear drive motor is connect with controller, and controller controls the driving of linear drive motor,
Controller is programmable PLC controller, which can be set in TBM driver's cabin, be convenient in TBM driver's cabin to straight in this way
Line driving motor is operated.
In addition, settable display, display are connect with computing terminal in TBM driver's cabin, computing terminal sends out data
Display is given, convenient for the quick reception of the testing result of TBM driver, computing terminal can be remote computer, with X-ray back scattering
The each mechanism and TBM industrial personal computer of scanning head are separately connected, and computing terminal can be regarded as receiving the computer of scanning information, X-ray
After back scattering scanning head scans slag piece, search receiner is received, and carries out photoelectric conversion, analog-to-digital conversion；Data in computing terminal
Acquisition component by the digital signal after conversion by network cable transmission to computer, carry out again later the working process of digital signal into
And it is converted into image.
Embodiment 2
A kind of TBM slag piece ray back scattering real time scan i mage analysis methods, using a kind of TBM slag described in embodiment 1
Piece ray back scattering real time scan imaging device, including following content:
When starting scanning, slide switch door 6 is opened, then as shown in Figure 2, X-ray tube 3 and search receiner 10 are along belt
Machine transmission direction is once arranged, and as TBM conveyer belt moves, X ray excited pipe 3, search receiner 10 is received from difference
Compton scattered photon number corresponding to position, X-ray back scattering can be carried out big region and single side scan, after without part
The limitation of imaging device, and scanning easy to remove, small in size, working space is small, tunnel of this point for construction environment complexity
For the belt feeder of transmission slag piece, extremely meet, and the equipment has real-time, it can be within a short period of time sweeping
It retouches result and feeds back to TBM driver.
In TBM tunneling process, because geological conditions has a possibility that certain continuity, spot cytoplasmic mutation pole
It is small, so do not need persistently to scan the driving section when with X back scattering scanning head operation, to wherein one section scanning or
Every scanning, data are received by computing terminal and are handled, computing terminal is according to the received number of X-ray back scattering scanning head
It is believed that breath, obtains size, shape and the slag piece interior section feature (mainly crackle and trend) of slag piece, and pass through display
Device display imaging as a result, imaging results are directly checked by technical staff or TBM driver, what TBM driver can then come out according to imaging
As a result, judging to TBM tunneling program, the mechanical parameters such as thrust, the torque of TBM are adjusted, in real time to match current geology
Environment realizes high efficient driving.
TBM driver observation rock slag, which adjusts TBM, mainly the following: if slag discharge amount increases suddenly, illustrating front
Country rock is relatively broken or face has part landslide, determines whether to shut down progress supporting accordingly；If there is different shape slag piece,
It has been likely encountered special mass；Crack then may determine that rock mass development degree.TBM driver can adjust thrust size, make TBM to fit
It should preceding geological conditions.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of TBM slag piece ray back scattering real time scan imaging device and method characterized by comprising
It can be across TBM conveyer belt or set on the bracket of TBM conveyor belt two sides；
X-ray back scattering scanning head is set in shell, and shell is supported by bracket, and shell can be set to TBM conveyer belt
Top, X-ray back scattering scanning head detects the slag piece that TBM conveyer belt transmits and receives data information；
Computing terminal, X-ray back scattering scanning head are connect with computing terminal, and computing terminal connects according to X-ray back scattering scanning head
The data information of receipts obtains size, shape and the slag piece interior section feature of slag piece.
2. a kind of TBM slag piece ray back scattering real time scan imaging device according to claim 1, which is characterized in that institute
It includes the strut that can be set to the TBM conveyor belt two sides that bracket, which is stated, as door shaped stent or bracket.
3. a kind of TBM slag piece ray back scattering real time scan imaging device according to claim 1, which is characterized in that institute
It states bracket and is equipped with sliding rail in the lower section two sides of the shell, slide switch door is set in sliding rail.
4. a kind of TBM slag piece ray back scattering real time scan imaging device according to claim 4, which is characterized in that institute
State slide switch door one or both sides setting straight line driving mechanism.
5. a kind of TBM slag piece ray back scattering real time scan imaging device according to claim 1, which is characterized in that institute
Stating X-ray back scattering scanning head includes X-ray tube, beam collimator and search receiner, and beam collimator passes through radiation protection
Shell branch stays at the top of X-ray tube, and search receiner is set to the side of X-ray tube.
6. a kind of TBM slag piece ray back scattering real time scan imaging device according to claim 1, which is characterized in that institute
The bottom setting hold-down support of bracket is stated, hold-down support can be set to the lower section of the TBM conveyer belt.
7. a kind of TBM slag piece ray back scattering real time scan imaging device according to claim 6, which is characterized in that institute
It states hold-down support and is connect with the pillar for being used to support TBM conveyer belt.
8. a kind of TBM slag piece ray back scattering real time scan imaging device according to claim 1, which is characterized in that institute
Stating shell is cover type.
9. a kind of TBM slag piece ray back scattering real time scan imaging device according to claim 1, which is characterized in that institute
Stating shell is radiation protective casing.
10. a kind of TBM slag piece ray back scattering real time scan i mage analysis methods, which is characterized in that using in claim 1-9
A kind of described in any item TBM slag piece ray back scattering real time scan imaging devices, including following content:
A kind of TBM slag piece ray back scattering real time scan imaging device is fixed at TBM conveyer belt；
X-ray back scattering scanning head is opened, the slag piece of a distance is scanned；
The ray information of collection is sent to computing terminal by X-ray back scattering scanning head；
Computing terminal passes through data processing, obtains image of this section apart from interior slag piece, TBM driver is according to obtained image to the palm
Square rock mass conditions adjust TBM in face of son.
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| CN201910734766.5A CN110308169A (en) | 2019-08-09 | 2019-08-09 | A kind of TBM slag piece ray back scattering real time scan imaging device and method |
| CN202010767440.5A CN112033986B (en) | 2019-08-09 | 2020-08-03 | TBM slag sheet ray back scattering real-time scanning imaging device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112666197A (en) * | 2020-11-29 | 2021-04-16 | 山东大学 | Rock slag quartz content testing system and method for TBM |
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| CN113404502B (en) * | 2021-06-21 | 2022-07-08 | 中南大学 | Shield hob abrasion monitoring device and method based on ballast piece morphology |
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| CN112033986B (en) | 2021-10-01 |
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