CN201258744Y - Tunneling shield attitude measuring system - Google Patents
Tunneling shield attitude measuring system Download PDFInfo
- Publication number
- CN201258744Y CN201258744Y CNU2008201535808U CN200820153580U CN201258744Y CN 201258744 Y CN201258744 Y CN 201258744Y CN U2008201535808 U CNU2008201535808 U CN U2008201535808U CN 200820153580 U CN200820153580 U CN 200820153580U CN 201258744 Y CN201258744 Y CN 201258744Y
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- chi
- shield
- shield machine
- measuring system
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Abstract
The utility model provides a tunnel shield attitude measurement system, which comprises two instrument platforms, a theodolite, a prism, and a pair of front ruler and rear ruler, wherein, the two instrument platforms are arranged at the front part and the rear part of the system and are respectively fixed on a spliced pipe segment; the theodolite is arranged at the front instrument platform; the prism is arranged on the rear instrument platform; and the pair of front ruler and rear ruler are arranged in a shield machine. While ensuring the measurement accuracy and stability, the utility model simplifies the measurement process and greatly saves the project cost.
Description
Technical field
The utility model relates to a kind of engineering measuring technology, belongs to the advance engineering survey system of attitude of tunneling shield especially, is a kind of tunnel shield posture measuring system.
Background technology
The shield attitude measurement comprises artificial attitude measurement and automatic attitude measurement, artificial attitude measurement is to be installed in the head that nonadjustable signal on the shield machine is calculated shield machine by artificial apparatus measures, the tail deviation, automatically attitude measurement is that a kind of collection is measured, instrument and meter and computer are soft, hardware technology and one, has the system that shield attitude is carried out the kinetic measurement function, at present domestic mainly is the ROBOTEC automatic measurement system of calculation worker-house exploitation of Japan and the VMT automatic measurement system of Germany's exploitation, but because automatic measurement system easily goes wrong, and be difficult for repairing and influence programming, so on the present domestic shield machine manual measurement system has been installed mostly.
The shield attitude measurement is a parameter of describing shield machine position and Tunnel Design axis relativeness.Mainly comprise shield machine head elevation deviation, shield machine head horizontal departure, shield machine afterbody elevation deviation, four numerical value of shield machine afterbody horizontal departure.Shield attitude is accompanied by the overall process that the tunnel advances, and is a very important link in the whole tunnel survey.Shield attitude accurately whether, directly have influence on the quality of whole construction of tunnel and the last perforation in tunnel.
The utility model content
The purpose of this utility model is: a kind of tunnel shield posture measuring system is provided, and it can reach certainty of measurement, and the simplified measurement process is saved engineering cost.
In order to achieve the above object, the utility model provides a kind of tunnel shield posture measuring system, comprising:
Two instrument platforms that front and back are provided with are individually fixed on the good section of jurisdiction of assembly unit;
One transit is arranged on the preceding instrument platform;
One prism is arranged on the instrument platform of back;
Chi and back chi are arranged in the shield machine before a pair of.
Preferably, described tunnel shield posture measuring system also comprises:
Two instrumentation platforms that front and back are provided with respectively near instrument platform, and are fixed on the good section of jurisdiction of assembly unit.
Preferably, described preceding chi and back chi have a difference in height.
Preferably, back chi height is low for described preceding chi.
Preferably, described preceding chi and back chi are positioned at the top of shield machine.
Preferably, described preceding chi and back chi are positioned on the same radial line of shield machine.
The utility model makes it compared with prior art owing to adopted above technical scheme, has the following advantages and excellent results:
The utility model is under the prerequisite that guarantees certainty of measurement and stability, and the simplified measurement process has been saved engineering cost greatly.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.
In the accompanying drawings:
Fig. 1 is the structural representation of tunneling shield that the utility model is surveyed.
Fig. 2 is the schematic diagram of scale of the present utility model.
Fig. 3 is the A-A sectional drawing of Fig. 1.
Fig. 4 is the structural representation of shield machine of the present utility model.
Fig. 5 is the schematic diagram of prism of the present utility model.
Fig. 6 is the coordinate system schematic diagram.
Fig. 7 is the schematic diagram of design angle.
Fig. 8 is a shield machine angular turn schematic diagram.
Fig. 9 is the rear elevation of section of jurisdiction.
Drawing reference numeral:
[1] preceding instrument platform [2] back instrument platform [3] prism [4] transit
[5] chi [7] shield machine [8] section of jurisdiction, preceding chi [6] back
[9] preceding instrumentation platform [10] back instrumentation platform [71] shield machine head [72] shield machine afterbody
The specific embodiment
Specifically introduce a kind of preferred embodiment of method of the present utility model below in conjunction with accompanying drawing 1-9.
Shown in Fig. 1,9, on the good section of jurisdiction 8 of shield machine 7 rear portion assembly units one in front and one in back and with 8 tops, section of jurisdiction instrument platform 1 and back instrument platform 2 before at interval 30～35cm is provided with, instrumentation platform 9 before preceding instrument platform 1 bottom is provided with about 40cm at interval is provided with transit 4 at interval on preceding instrument platform 1; In instrument platform 2 bottoms, back back instrumentation platform 10 is set about 40cm at interval, on the instrument platform 2 of back prism 3 is set, the structural representation of prism 3 as shown in Figure 5.Survey crew stand on the instrumentation platform 9,10, and operation transit 4 or prism 3 are measured.As shown in Figure 3, Figure 4, chi 5 and back chi 6 before one in front and one in back being provided with on the same radial line on the top between shield machine head 71 and shield machine afterbody 72, transit 4 is controlled at 20m～100m to preceding chi 5 distances, and transit is as the criterion with visible to the angle of front and back chi; The longer the better for the distance of transit 4 and rearscope 3, is as the criterion to see clearly Chu; Preceding chi 5 is lower than back chi 6, is convenient to the observation of transit 4.The schematic diagram of preceding chi 5 and back chi 6 as shown in Figure 2.Because the measurement of coordinates of shield machine head 71 and shield machine afterbody 72 is very inconvenient, so extrapolate the position deviation of shield machine by the deviation of chi before measuring 5 and back chi 6.The method that is adopted is the relative deviation that designs axis of chi before and after the method that the actual preceding chi 5 that records and back chi 6 angles and preceding chi 5 and back chi 6 design angles are compared is calculated.
Use method of the present utility model to measure a shield attitude, the first design altitude of known its shield=-9.1192m, shield tail design altitude=-8.9672m, forward and backward chi is installed in shield structure planar central.We use fixed observer pier 3 as the platform that installs instruments in tunnel survey, and use the irony fixed mount to replace rearscope in the tunnel.Be installed on the shield machine coordinate that two fixing independent scales are calculated shield machine head 71 and shield machine afterbody 72 by measurement.Setting up a relative coordinate system then, is X-axis with shield structure central axis, and the anterior horizontal direction of shield machine is a Y-axis, vertical direction is the H axle, and 3 intersection points are set up a coordinate system as the origin of coordinates, uses (X, Y H) represents concrete coordinate, and the corresponding long measure of scale is mm.Coordinate system as shown in Figure 6, wherein a is a shield machine head 71, b is a shield machine afterbody 72, o is the shield machine center, design angle α
Before(backsight～survey station～preceding chi)=180 ° 02 ' 12 ", α
After(backsight～survey station～back chi)=180 ° 02 ' 13 ".
After driving was finished, transit 4 was as the coordinate of survey station point: (X
Stand=36450.6738, Y
Stand=9785.1114, H
Stand=-5.11), with the coordinate of prism: (X as backsight point
Backsight=36509.2428, Y
Backsight=9755.2812, H
Backsight), H wherein
BacksightIn computational process, do not need.The preceding chi coordinate (X of corresponding mileage points
Preceding chi 1=36383.7529, Y
Preceding chi 1=9819.1414, H
Preceding chi 1), H
Preceding chi 1Back chi coordinate (X can be calculated by following
Back chi 1=36385.5752, Y
Back chi 1=9818.2146, H
Back chi 1), H
Back chi 1Actual theodolite reading β can be calculated by following
Before(backsight～survey station～preceding chi)=180 ° 02 ' 50 ", β
After(backsight～survey station～back chi)=180 ° 02 ' 36 ", front and back chi branch be clipped to transit apart from S
Before=75.0763m, S
Before=73.0318m has above-mentioned data difference substitution formula (1) and formula (2):
Preceding chi plane deviation=tan (arctan (Y
Preceding chi 1/ S
Before)+β
Before-α
Before) * S
Before=13.8mm;
Back chi plane deviation=tan (arctan (Y
Back chi 1/ S
After)+β
After-α
After) * S
After=8.1mm.
In this time, if shield machine itself has a clockwise or counterclockwise rotation, the position of front and back chi can produce the variation as Fig. 8.We suppose that this angle of revolution is γ, γ when shield machine clockwise rotates on the occasion of, be negative value when rotating counterclockwise.Shield machine anglec of rotation γ=0.2 °, H
Preceding chi 1=2.318m, H
Back chi 1=2.582m, following formula of substitution (3) and formula (4) have:
Preceding chi plane deviation=tan (arctan (Y
Preceding chi 1/ S
Before)+β
Before-α
Before) * S
Before-tan γ * H
Preceding chi 1=5.6mm;
Back chi plane deviation=tan (arctan (Y
Back chi 1/ S
After)+β
After-α
After) * S
After-tan γ * H
Back chi 1=-0.9mm.
Known: the long L=7.655m of shield machine, X
Preceding chi 1=1.817m, X
Back chi 1=3.794m has above data substitution formula (5) and formula (6):
The first plane of shield deviation=preceding chi plane deviation-(back chi plane deviation-preceding chi plane deviation) * X
Preceding chi 1/ (S
Before-S
After)=11.4mm;
The first plane of shield deviation=chi plane, back deviation-(preceding chi plane deviation-chi plane, back deviation) * (L-X
Back chi 1)/(S
Before-S
AfterThe 13.2mm of)=-.
Shield machine deviation in vertical direction also is to calculate by the elevation that calculates forward and backward chi to draw.Because top edge or lower limb easier aiming than the scale center, the top edge of our general leaf sight or the lower limb measuring vertical angle of forward and backward chi.The forward and backward chi vertical angle of measuring is designated as δ respectively
Before, δ
AfterAccording to H
Stand=-5.11, H
Preceding chi 1=2.318m, H
Back chi 1=2.582m, S
Before=75.0763m, S
Before=73.0318m, transit vertical angle reading δ
Before=91 ° 15 ' 41 ", δ
After=91 ° 03 ' 38 " substitution formula (7) and formula (8) have:
Preceding chi shield structure center elevation=H
Stand(90 °-δ of+tan
Before) * S
Before-cos γ * H
Preceding chi 1=-9.081m;
Back chi shield structure center elevation=H
Stand(90 °-δ of+tan
After) * S
After-cos γ * H
Back chi 1=-9.044m.
The elevation that it is estimated that out shield machine head 71, afterbody 72 according to this two number can be with following formula (9) and formula (10):
The first actual elevation of shield=preceding chi shield structure center elevation-(back chi shield structure center elevation-preceding chi shield structure center elevation) * X
Preceding chi 1/ (S
After-S
BeforeThe 9.1139m of)=-;
The actual elevation of shield tail=back chi shield structure centre deviation-(preceding chi shield structure centre deviation-back chi shield structure centre deviation) * (L-X
Back chi 1)/(S
After-S
BeforeThe 8.9753m of)=-.
According to the first design altitude of shield=-9.1192m, shield tail design altitude=-8.9672m, bring formula (11) and formula (12) into then:
The first elevation deviation of the shield=first actual elevation of the shield-first design altitude=5.3mm of shield;
The shield tail elevation deviation=actual elevation of shield tail-shield tail design altitude=-8.1mm.
Owing to be equipped with the ROBOTEC automatic measurement system of Japanese firm's research and development on this shield machine, the automatic measurement system shield attitude is shown as: the first plane deviation=8mm of shield, shield tail plane deviation=-10mm, the first elevation deviation=3mm of shield, shield tail elevation deviation=-4mm, through comparing, the survey data of the utility model and ROBOTEC automatic measurement system is relatively poor all in ± 5mm, illustrate that certainty of measurement of the present utility model reaches requirement fully, and applying flexible, cost saved greatly.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (6)
1. tunnel shield posture measuring system is characterized in that comprising:
Two instrument platforms (1,2) that front and back are provided with are individually fixed on the good section of jurisdiction of assembly unit (8);
One transit (4) is arranged on the preceding instrument platform (1);
One prism (3) is arranged on the back instrument platform (2);
Chi (5) and back chi (6) are arranged in the shield machine (7) before a pair of.
2. tunnel shield posture measuring system as claimed in claim 1 is characterized in that also comprising:
Two instrumentation platforms (9,10) that front and back are provided with respectively near instrument platform (1,2), and are fixed on the good section of jurisdiction of assembly unit (8).
3. tunnel shield posture measuring system as claimed in claim 1 or 2 is characterized in that: chi (5) and back chi (6) have a difference in height before described.
4. tunnel shield posture measuring system as claimed in claim 3 is characterized in that: back chi (6) is highly low for chi (5) before described.
5. as any described tunnel shield posture measuring system of claim 4, it is characterized in that: chi (5) and back chi (6) are positioned at the top of shield machine (7) before described.
6. as any described tunnel shield posture measuring system of claim 4, it is characterized in that: chi (5) and back chi (6) are positioned on the same radial line of shield machine (7) before described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201535808U CN201258744Y (en) | 2008-09-27 | 2008-09-27 | Tunneling shield attitude measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201535808U CN201258744Y (en) | 2008-09-27 | 2008-09-27 | Tunneling shield attitude measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201258744Y true CN201258744Y (en) | 2009-06-17 |
Family
ID=40772976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201535808U Expired - Fee Related CN201258744Y (en) | 2008-09-27 | 2008-09-27 | Tunneling shield attitude measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201258744Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614127B (en) * | 2009-07-30 | 2011-06-08 | 上海市隧道工程轨道交通设计研究院 | Method for surveying river-crossing leveling during shield breakthrough construction |
| CN106066177A (en) * | 2016-05-06 | 2016-11-02 | 中铁十八局集团第四工程有限公司 | Shield automatic guiding system measures manual review's method |
-
2008
- 2008-09-27 CN CNU2008201535808U patent/CN201258744Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614127B (en) * | 2009-07-30 | 2011-06-08 | 上海市隧道工程轨道交通设计研究院 | Method for surveying river-crossing leveling during shield breakthrough construction |
| CN106066177A (en) * | 2016-05-06 | 2016-11-02 | 中铁十八局集团第四工程有限公司 | Shield automatic guiding system measures manual review's method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20160927 |