CN110118294A - A kind of dedicated geological radar scanning frame design method of lining quality of channel - Google Patents
A kind of dedicated geological radar scanning frame design method of lining quality of channel Download PDFInfo
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- CN110118294A CN110118294A CN201910503854.4A CN201910503854A CN110118294A CN 110118294 A CN110118294 A CN 110118294A CN 201910503854 A CN201910503854 A CN 201910503854A CN 110118294 A CN110118294 A CN 110118294A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- G06F30/00—Computer-aided design [CAD]
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Abstract
The invention discloses a kind of dedicated geological radar scanning frame design methods of lining quality of channel, including calculating substructure height according to the distance and carrier heights of carrier bottom end to flange center；Flange bolt hole inclination angle group is designed according to tunnel-liner inclination angle；Point height, geological radar height design spring free length are respectively detected according to tunnel model lining cutting；Flange radius is calculated according to tunnel model geometrical relationship；Point height is respectively detected according to tunnel model lining cutting, scanning frame pedestal and tunnel section central axes distance when calculating to detect each point.This method need to only acquire the parameters such as vault and abutment wall position arch angle, spring of arch, device of spring stiffness coefficient and be close to lining cutting surface when GPR detection can be realized, remove manually lifting for geological radar from, guarantee lining quality detection accuracy according to tunnel-liner model.
Description
Technical field
The present invention relates to a kind of geological radar scanning frame more particularly to a kind of dedicated geology thunders of lining quality of channel
Up to scanning frame design method.
Background technique
Lining cutting refers to building to prevent surrouding rock deformation or collapsing along materials such as tunnel trunk periphery armored concrete
It supports and maintenance tunnel is steady in a long-term and the permanent structure object of durability.Since concrete lining quality is there are problem, cause to serve as a contrast
Cracking, percolating water, landslide are built, tunnel quality safety is seriously affected.Therefore, lining quality of channel is of great significance, inspection
Survey project includes: concrete strength, concrete thickness, lining cutting back with the presence or absence of contents such as cavities.
When carrying out lining quality of channel, since testing crew lifts geological radar, there are continuous work fatigues, so that
Geological radar antenna is difficult to be adjacent to tunnel-liner surface always, and lining quality is caused to detect collected data portion distortion.It presses
According to TB 10223-2004 " railway tunnel lining quality non-destructive testing regulation " and DB14/T 721-2012 " highway tunnel lining matter
Measure non-destructive testing technology regulation ", longitudinally wiring is needed in tunnel vault, left and right haunch and left and right abutment wall lining quality of channel
Totally five longitudinal main profiles are arranged, to realize tunnel-liner whole detection.The geological radar scanning frame implemented using this method, step
It is rapid simple, it is easy to operate, it is advantageously implemented geological radar and is close to tunnel-liner detection, guarantee that tunnel-liner detects quality.
The pervious lining quality of channel of the present invention geological radar scanning frame method and apparatus in the prior art, have
Following several comparison patents and document:
1) a kind of tunnel-liner inspecting manipuator arm that the radian based on tunnel wall is adjusted (109794947 A of CN),
A kind of tunnel-liner inspecting manipuator arm that the radian based on tunnel wall is adjusted is disclosed, sliding sleeve and movable push bar are passed through
It works in coordination and adjusts the radian of card slot, so that detection probe and tunnel wall can be closely adhered to and detected, improve detection data
Precision.The present invention is by detecting position arch angle to tunnel-liner, highly measuring, according to tunnel model to scanning frame bottom
Seat altitude range, flange bolt hole inclination angle group, spring free length, flange radius are designed, and calculate in lining
Each measuring point scanning frame placement location realizes that geological radar is close to tunnel-liner detection.
2) a kind of tunnel-liner detection is adjusted with geological radar antenna plunger hydraulic bracket (105502212 A of CN) rises
It drops frame and realizes workbench lifting, and geological radar tilt angle is adjusted by spring, realize that geological radar and tunnel-liner paste
It closes.The adjustment of geological radar tilt angle involved in the Invention Announce, only adjusts geological radar tilt angle by spring, lacks
Calculating data instructs tilt angle to adjust, it is more difficult to realize that geological radar is fitted closely with tunnel-liner.
3) can automatic controlled height and angle tunnel-liner detection support and detection method (106814346 A of CN) it is logical
Rotation rotating end adjustment geological radar height is crossed, geological radar tilt angle is adjusted by bidirectional ball hinge device, guarantees detection
When geological radar be close to tunnel-liner, and be arranged and stick up hyoplastron geological radar is made to may extend across obstacle, shield to geological radar.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of dedicated geology thunders of lining quality of channel
Up to scanning frame design method.
The purpose of the present invention is realized by technical solution below:
A kind of dedicated geological radar scanning frame design method of lining quality of channel, comprising:
A designs geological radar scanning frame substructure height range Hbase, geological radar is made to be suitable for the lining in different height tunnel
Build detection；
The different bolt hole inclination angle group of B design method LactelThe general bolt hole inclination angle group of flange 0 °, ± 30 °, ±
45 °, ± 60 °, ± 90 °, ± 120 ° }, keep geological radar vertical with tunnel-liner section；Geological radar inclination angle and tunnel model serve as a contrast
It is equal to build each test point arch angle, test point includes vault, left haunch, right haunch, leftwall and RightWall；
C designs spring free length Lspring, it is bonded geological radar with tunnel-liner；It is respectively examined according to tunnel model lining cutting
Measuring point height, geological radar height establish spring-tunnel-liner detection point model, obtain spring free length LspringSpring
The correlation of stiffness factor k；
D designs flange radius Rflange, flange radius is calculated according to tunnel model geometrical relationship；
Each measuring point scanning frame placement location D of E, respectively detects point height according to tunnel-liner, calculates to detect tunnel and respectively detects
Scanning frame pedestal and tunnel section central axes distance D when point.
Compared with prior art, one or more embodiments of the invention can have following advantage:
This method is based on tunnel mathematics geometrical model and each test point parameter measurement of actual tunnel lining cutting, according to actual tunnel
Shape establishes tunnel mathematics geometrical model, can be to geological radar scanning frame pedestal by measurement each test point parameter of tunnel-liner
Altitude range, flange bolt hole inclination angle group, spring free length, flange radius are designed, and realize that geological radar is close to tunnel
Lining cutting eliminates manually lifting for geological radar, guarantees to reduce labor workload while tunnel-liner detection quality.In addition,
The present invention also has the adjustable function of substructure height, meets lining quality of the scanning frame in different tunnels and detects.This method spirit
It is living easy, adaptable, it can be applicable in different tunnels and quality testing carried out to lining cutting.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example and is used together to explain the present invention, do not constitute and the present invention is limited.In the accompanying drawings:
Fig. 1 is the design method flow chart of the dedicated geological radar scanning frame of lining quality of channel；
Fig. 2 is the dedicated geological radar scanning frame lining schematic diagram of lining quality of channel；
Fig. 3 is the design method program frame of the dedicated geological radar scanning frame of lining quality of channel.
Specific embodiment
According to the technique and scheme of the present invention, in the case where not changing connotation of the invention, those of ordinary skill in the art
It can propose multiple frame modes and production method of the invention.Therefore following specific embodiments and attached drawing are only the present invention
Technical solution illustrate, and be not to be construed as whole of the invention or be considered as the restriction or limit of technical solution of the present invention
System.
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings.
Fig. 1 is the dedicated geological radar scanning frame design method process of the lining quality of channel of example according to the present invention
Figure, below with reference to Fig. 1, the process for embodiment that the present invention will be described in detail.
The dedicated geological radar scanning frame design method of lining quality of channel provided by the invention the following steps are included:
Step 10 designs geological radar scanning frame substructure height range Hbase, geological radar is made to be suitable for different height tunnel
Lining；
The different bolt hole inclination angle group of step 20 design method LactelThe general bolt hole inclination angle group of flange 0 °, ±
30 °, ± 45 °, ± 60 °, ± 90 °, ± 120 ° }, keep geological radar vertical with tunnel-liner section；Geological radar inclination angle and tunnel
Each test point arch angle of model lining cutting is equal, and test point includes vault, left haunch, right haunch, leftwall and RightWall；
Step 30 designs spring free length Lspring, it is bonded geological radar with tunnel-liner；According to tunnel model lining cutting
Each detection point height, geological radar height establish spring-tunnel-liner detection point model, obtain spring free length Lspring-
The correlation of device of spring stiffness coefficient k；
Step 40 designs suitable flange radius Rflange, flange radius is calculated according to tunnel model geometrical relationship；
Each measuring point scanning frame placement location D of step 50, respectively detects point height according to tunnel-liner, calculates to detect tunnel each
Scanning frame pedestal and tunnel section central axes distance D when test point.
Such as Fig. 3, in above-mentioned steps 1, geological radar scanning frame substructure height range is according to carrier bottom end to flange center
Distance and carrier heights calculated, geological radar scanning frame substructure height range HbaseCalculation method are as follows:
By measuring to each tunnel in current locale, current locale minimum vault H is obtainedTmin, minimum left and right abutment wall
HLmin, maximum vault HTmax, maximum left and right abutment wall HLmax；If carrier bottom end to flange center apart from minimum value be Hmin, carrier
Bottom end to flange center apart from maximum value be Hmax, need to there are altitude margins between scanning frame and tunnel when carrying out Tunnel testing
δ, if the distance range h of carrier bottom end to flange center0, carrier heights h1, then
Hmin=min (HTmin、HTmax、HLmin、HLmax)；
Hmax=max (HTmin、HTmax、HLmin、HLmax)；
h0∈(Hmin+ δ, Hmax-δ)
Carrier bottom end to flange center distance is made of carrier heights and flange height, and relational expression h can be obtained0=Hbase+
h1, relational expression is substituted into above-mentioned carrier bottom end to flange center's distance calculation formula, is obtained
Hbase∈(Hmin+δ-h1, Hmax-δ-h1)
When replacing to the carrier that different tunnels carry out lining quality detection or carry pedestal, substructure height can pass through its bottom
Lower escalator structure is adjusted, and meets lining quality detection of the scanning frame in each tunnel.
Such as Fig. 3, the flange bolt hole inclination angle group design method of above-mentioned steps 2 specifically:
Tunnel-liner is symmetrical along section central axes, and abutment wall is located at tunnel arch camber position, and haunch is located at tunnel vault and abutment wall
The midpoint of camber line；The geological radar is bonded with each test point of tunnel model lining cutting when detecting, is reflected as geological radar and tunnel
Road lining cutting section is vertical, and geological radar inclination angle is equal with each test point arch angle of tunnel model lining cutting, measures tunnel vault angle, θTop
=0, left and right side wall angle, θLow, then left and right haunch arch angle
Geological radar is installed on radar pallet, can realize geological radar inclination angle tune by designing flange bolt inclination angle group
It is whole, flange special bolts hole inclination angle groupCalculation formula are as follows:
Wherein inclination angle groupRespectively represent flange bolt hole when detection vault, left and right haunch, left and right abutment wall
Inclination angle size；
It, can to the general bolt hole inclination angle group of flange design flange { 0 °, ± 30 °, ± 45 °, ± 60 °, ± 90 °, ± 120 ° }
Realize abutment wall inclination angle be ± 60 °, ± 90 °, ± 120 ° of Tunnel testing.
Such as Fig. 3, the spring free length L of above-mentioned steps 3springDesign method specifically:
If scanning frame uses device of spring stiffness coefficient k, geological radar quality m, local gravitational acceleration g, four bullets are used altogether
Spring is for connecting geological radar pallet, in vault, left and right haunch, left and right side wall displacement due to geological radar self weight spring generation
Deformation is respectively as follows:
If keystone height is h by in-site measurementTop, tunnel arch radius is r0, geological radar pallet thickness t1, ground
Matter radar altitude is t2, spring free length Lspring, obtain left and right haunch hMid, left and right abutment wall hLowTest point height relationships formula:
hMid=hTop-r0+r0cosθMid；hLow=hTop-r0+r0cosθLow
When geological radar is close to left and right haunch, abutment wall four positions in left and right carry out lining quality detection, according to detection bullet
Spring is compressed, and inequation group can be obtained:
Above-mentioned camber of spring formula and each test point height relationships formula are substituted into inequation group, obtained:
Solving above-mentioned equation group can be obtained the minimum value L of spring free lengthspring；
When geological radar detects vault, needing to adjust substructure height makes geological radar close to lining cutting, if at this time
Substructure height is htopbase, there is relational expression:
Such as Fig. 3, the flange radius R of above-mentioned steps 4flangeCalculation method are as follows:
According to tunnel model geometric properties, when being detected using geological radar to tunnel-liner quality, flange cannot be touched
Encountering tunnel-liner causes geological radar that can not be close to tunnel-liner, if spring maximum compression deforms xmax, have
It is available:
Such as Fig. 3, the calculation method of 5 scanning frame of above-mentioned steps and tunnel section central axes distance are as follows: encircle when to vault, left and right
When waist, left and right abutment wall carry out lining quality detection, scanning frame placement location and tunnel section central axes distance are respectively DTop、
DMid、DLow；According to tunnel model geometrical relationship, equation group can be obtained:
Above-mentioned equation group is solved, when can acquire to vault, left and right haunch, the progress lining quality detection of left and right abutment wall, scanning
Frame placement location and tunnel section central axes distance.
Although disclosed herein embodiment it is as above, the content is only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (7)
1. a kind of dedicated geological radar scanning frame design method of lining quality of channel, which is characterized in that it is described exclusively
Matter radar scanning frame design method includes:
A designs geological radar scanning frame substructure height range Hbase, geological radar is made to be suitable for the lining cutting inspection in different height tunnel
It surveys；
The different bolt hole inclination angle group of B design method LactelThe general bolt hole inclination angle group of flange 0 °, and ± 30 °, ± 45 °,
± 60 °, ± 90 °, ± 120 ° }, keep geological radar vertical with tunnel-liner section；Geological radar inclination angle and tunnel model lining cutting are each
Test point arch angle is equal, and test point includes vault, left haunch, right haunch, leftwall and RightWall；
C designs spring free length Lspring, it is bonded geological radar with tunnel-liner；According to each test point of tunnel model lining cutting
Highly, geological radar height establishes spring-tunnel-liner detection point model, obtains spring free length LspringSpring stiffness
The correlation of coefficient k；
D designs flange radius Rflange, flange radius is calculated according to tunnel model geometrical relationship；
Each measuring point scanning frame placement location D of E, respectively detects point height according to tunnel-liner, calculate the detection each test point in tunnel when
Scanning frame pedestal and tunnel section central axes distance D.
2. the dedicated geological radar scanning frame design method of lining quality of channel as described in claim 1, feature exist
In the parameter for needing to design includes substructure height range Hbase, the general bolt hole inclination angle group of flange 0 °, ± 30 °, ± 45 °, ±
60 °, ± 90 °, ± 120 ° }, flange special bolts hole inclination angle groupSpring free length Lspring, flange radius
Rflange。
3. the dedicated geological radar scanning frame design method of lining quality of channel as described in claim 1, feature exist
In in the step A, geological radar scanning frame substructure height range is the distance and carrier according to carrier bottom end to flange center
Height is calculated, geological radar scanning frame substructure height range HbaseCalculation method are as follows:
By measuring to each tunnel in current locale, current locale minimum vault H is obtainedTmin, minimum left and right abutment wall HLmin, most
Big vault HTmax, maximum left and right abutment wall HLmax；If carrier bottom end to flange center apart from minimum value be Hmin, carrier bottom end to method
Blue center apart from maximum value be Hmax, carry out Tunnel testing when need to there are altitude margin δ between scanning frame and tunnel, if carrier
The distance range h of bottom end to flange center0, carrier heights h1, then
Hmin=min (HTmin、HTmax、HLmin、HLmax)；
Hmax=max (HTmin、HTmax、HLmin、HLmax)；
h0∈(Hmin+ δ, Hmax-δ)
Carrier bottom end to flange center distance is made of carrier heights and flange height, and relational expression h can be obtained0=Hbase+h1, will
Relational expression substitutes into above-mentioned carrier bottom end to flange center's distance calculation formula, obtains
Hbase∈(Hmin+δ-h1, Hmax-δ-h1)
When replacing to the carrier that different tunnels carry out lining quality detection or carry pedestal, substructure height can be by rising under it
It drops terraced structure to be adjusted, meets lining quality detection of the scanning frame in each tunnel.
4. the dedicated geological radar scanning frame design method of lining quality of channel as described in claim 1, feature exist
In the flange bolt hole inclination angle group design method of the step B specifically:
The tunnel-liner is symmetrical along section central axes, and abutment wall is located at tunnel arch camber position, and haunch is located at tunnel vault and abutment wall
The midpoint of camber line；The geological radar is bonded with each test point of tunnel model lining cutting when detecting, is reflected as geological radar and tunnel
Road lining cutting section is vertical, and geological radar inclination angle is equal with each test point arch angle of tunnel model lining cutting, measures tunnel vault angle, θTop
=0, left and right side wall angle, θLow, then left and right haunch arch angle
Geological radar is installed on radar pallet, can realize geological radar Inclination maneuver, method by designing flange bolt inclination angle group
The different bolt hole inclination angle group of LactelCalculation formula are as follows:
Wherein inclination angle groupFlange bolt hole inclination angle when respectively representing detection vault, left and right haunch, left and right abutment wall is big
It is small；
To the general bolt hole inclination angle group of flange design flange { 0 °, ± 30 °, ± 45 °, ± 60 °, ± 90 °, ± 120 ° }, it can be achieved that
Abutment wall inclination angle is ± 60 °, ± 90 °, ± 120 ° of Tunnel testing.
5. the dedicated geological radar scanning frame design method of lining quality of channel as described in claim 1, feature exist
In the spring free length L of the step CspringDesign method specifically: set scanning frame and use device of spring stiffness coefficient k, geology
Radar quality m, local gravitational acceleration g, altogether using four springs for connecting geological radar pallet, vault, left and right haunch,
Left and right side wall displacement is respectively as follows: due to the deformation that geological radar self weight spring generates
If keystone height is h by in-site measurementTop, tunnel arch radius is r0, geological radar pallet thickness t1, geology thunder
It is t up to height2, spring free length Lspring, obtain left and right haunch hMid, left and right abutment wall hLowTest point height relationships formula:
hMid=hTop-r0+r0cosθMid；hLow=hTop-r0+r0cosθLow
When geological radar is close to left and right haunch, abutment wall four positions in left and right carry out lining quality detection, according to detection spring quilt
Compression, can be obtained inequation group:
Above-mentioned camber of spring formula and each test point height relationships formula are substituted into inequation group, obtained:
Solving above-mentioned equation group can be obtained the minimum value L of spring free lengthspring；
When geological radar detects vault, needing to adjust substructure height makes geological radar close to lining cutting, if pedestal at this time
Height is htopbase, there is relational expression:
6. the dedicated geological radar scanning frame design method of lining quality of channel as described in claim 1, feature exist
In the flange radius R of the step DflangeCalculation method are as follows:
According to tunnel model geometric properties, when being detected using geological radar to tunnel-liner quality, flange cannot be touched
Tunnel-liner causes geological radar that can not be close to tunnel-liner, if spring maximum compression deforms xmax, haveIt can obtain
It arrives:
7. the dedicated geological radar scanning frame design method of lining quality of channel as described in claim 1, feature exist
In, in the step E, the calculation method of scanning frame and tunnel section central axes distance are as follows: when to vault, left and right haunch, left and right
When abutment wall carries out lining quality detection, scanning frame placement location and tunnel section central axes distance are respectively DTop、DMid、DLow；Root
According to tunnel model geometrical relationship, equation group can be obtained:
Above-mentioned equation group is solved, when can acquire to vault, left and right haunch, the progress lining quality detection of left and right abutment wall, scanning frame is put
Seated position and tunnel section central axes distance.
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| 田其祥: "地质雷达在隧道衬砌检测中的应用", 《中国西部科技》 * |
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Denomination of invention: A design method of special GPR scanning frame for tunnel lining quality inspection Effective date of registration: 20220526 Granted publication date: 20210302 Pledgee: Shenzhen small and medium sized small loan Co.,Ltd. Pledgor: SHENZHEN TAIKE TEST CO.,LTD. Registration number: Y2022440020074 |
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