CN106441136B - Rectangular shield phase of boring tunneling boring deformation monitoring method - Google Patents
Rectangular shield phase of boring tunneling boring deformation monitoring method Download PDFInfo
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- CN106441136B CN106441136B CN201610858381.6A CN201610858381A CN106441136B CN 106441136 B CN106441136 B CN 106441136B CN 201610858381 A CN201610858381 A CN 201610858381A CN 106441136 B CN106441136 B CN 106441136B
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- lining segment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- General Physics & Mathematics (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of rectangular shield phase of boring tunneling boring deformation monitoring methods, belong to tunnel deformation monitoring technical field, for solving the problems, such as that conventional monitoring methods low efficiency, precision are poor.The rectangular shield phase of boring tunneling boring deformation monitoring method includes: the measurement of one, the progress non-erection stage of lining segment: carrying out comprehensive scanning by spatial digitizer before installing after the completion of lining segment transport, splice target, forms each ring lining segment after virtual splicing and completely scan point cloud model；Two, it carries out the measurement after lining segment is installed: target being set in tunnel, and arranges that spatial digitizer carries out domain scanning using target as backsight point；Three, the monitoring data for comparing lining segment installation front and back obtain rectangular shield phase of boring full section of tunnel deformation.
Description
Technical field
The present invention relates to tunnel deformation monitoring technical fields, and in particular to a kind of rectangular shield phase of boring tunneling boring deformation
Monitoring method.
Background technique
The shield driving stage needs to monitor full section of tunnel deformation.Conventional monitoring methods are supervised in tunnel deformation region
It surveys section and monitoring point is set, these monitoring points are measured using leveling measuring method, thus by comparing front and back repeatedly prison
The displacement of measuring point obtains the deformation of tunnel structure indirectly.But there is some shortcomings for traditional monitoring method: first is that monitoring point
Quantity is restricted.Traditional monitoring relies primarily on manual measurement, and excessively then operator monitoring amount increases monitoring point quantity, monitoring cycle
It is long, to cannot reflect tunnel deformation situation in time, it not can reflect tunnel overall deformation if the quantity for reducing monitoring point
Trend.For Rectangular Tunnel, since there are stress concentrations for four corners, emphasis is needed to monitor its vertical and horizontal change
The quantitative requirement of shape, each ring measuring point is more than circular tunnel, and big using leveling work amount, efficiency is lower.Second is that cannot
Obtain pipe-plate lining initial deformation value.By the measurement of the level, the only deformation of available section of jurisdiction after mounting is unable to measure installation
The deformation in stage.Third is that visibility is poor in subway tunnel, narrow space, complex environment cause level monitoring data precision compared with
Difference.
Summary of the invention
The purpose of the present invention is to provide a kind of rectangular shield phase of boring tunneling boring deformation monitoring methods, solve tradition prison
Survey method has that low efficiency, precision are poor.
To achieve the goals above, the technical scheme is that
Rectangular shield phase of boring tunneling boring deformation monitoring method, includes the following steps:
Step 1: the measurement of the non-erection stage of lining segment:
For first step lining segment by place above crane ground on the scene, 2-3 target is set up on lining segment periphery,
Second step carries out comprehensive scanning to each piece of lining segment using spatial digitizer,
Third step forms every piece of lining segment and completely scans point cloud model by splicing target,
After the completion of all lining segment scannings of 4th step, the splicing of an endless tube piece is completed using virtual connecting method, finally
It forms domain lining segment and scans point cloud model, to obtain three-dimensional dimension of the domain lining segment before actual installation；
Step 2: lining segment be installed after measurement:
Ground monitoring is controlled the target in net pilot measurement to shield machine working shaft by the first step,
Target is set in second step tunnel,
Third step arranges spatial digitizer in suitable position, and backsight point is target spot, carries out domain scanning；
Step 3: the monitoring data of comparison step one and step 2, comparative analysis lining segment is in non-erection stage and peace
Deformation after the completion of dress.
Further, right in lining segment lower left, lining segment respectively using three station scan patterns in the step 1
Three lower section, lining segment rear upper directions carry out comprehensive scanning to same lining segment.
Further, two station scan patterns are used in the step 2, are spliced by target, to same lining segment
Carry out domain scanning.
Further, the spatial digitizer is three-dimensional laser total station.
Further, suitable position is the position in target and shield transversal line line in the step 2.
Compared with prior art, the invention has the advantages that and the utility model has the advantages that rectangular shield phase of boring of the invention
Tunneling boring deformation monitoring method, is in two stages monitored lining segment, first when lining segment reaches construction site
The collection that first piecemeal carries out lining segment three-dimensional data obtains erection stage lining segment by the initial deformation after soil pressure
Value；Then it is measured again after lining segment installs and forms a domain while acquiring data and obtain the shield-tunneling construction stage
I.e. lining segment is installed rear lining segment by the deformation values after soil pressure；To according to lining segment installation front and back
Date comprision lining segment is in the deformation that non-erection stage and shield-tunneling construction stage are after being installed.The monitoring side
Method is by being split as the change that lining segment installs former and later two stages for the deformation monitoring of rectangular shield phase of boring lining segment
Shape monitoring, so as to obtain polycyclic lining segment deformation data in a short time, is not pacifying according to comparative analysis lining segment
Dress stage and the deformation after being installed, realize the deformation monitoring of rectangular shield phase of boring full section of tunnel.The monitoring
Method is easy to operate, at low cost, solves that conventional monitoring methods monitoring efficiency is low, and the poor problem of monitoring data precision has
Preferable promotional value.
Detailed description of the invention
Fig. 1 is that phase of boring section of jurisdiction is swept in rectangular shield phase of boring tunneling boring deformation monitoring method in the embodiment of the present invention
Retouch schematic diagram.
In figure, 1- target；2- position of scanner one, 3- position of scanner two；4- lining segment；5- shield.
Specific embodiment
Rectangular shield phase of boring tunneling boring deformation monitoring method of the invention is made below according to Fig. 1 and specific embodiment
It is further described.According to following explanation and claims, advantages and features of the invention will be become apparent from.It below will be by institute
The embodiment combination attached drawing enumerated, the technology contents and feature that the present invention will be described in detail.Need in addition it illustrate, attached drawing is all made of
Very simplified form and use non-accurate ratio, only to it is convenient, lucidly aid in illustrating the mesh of the embodiment of the present invention
's.For sake of convenience, "upper" described below, "lower" are consistent with the upper and lower direction of attached drawing, but this can't be the present invention
The limitation of technical solution.
Present invention is primarily based on 3-D scannings to establish a kind of rectangular shield phase of boring lining segment deformation monitoring method, solution
Certainly conventional monitoring methods low efficiency, the deficiency of heavy workload, monitoring method through the invention can obtain more in a short time
Lining papers builds segment deformation data, and available lining segment erection stage is by the initial deformation value after soil pressure.The present invention
The basic principle of monitoring method be: lining segment is monitored in two stages, reaches construct in lining segment first
Elder generation's piecemeal carries out the collection of lining segment three-dimensional data when place；Then after lining segment installs and forms a domain again
It measures while acquiring data；Finally according to the date comprision lining segment of installation front and back in non-erection stage and installation
It is after the completion the deformation in Shield Construction Method Used stage.
Embodiment one
As shown in Figure 1, rectangular shield phase of boring tunneling boring deformation monitoring method, includes the following steps:
The measurement of the non-erection stage of S001 lining segment:
For first step lining segment 4 by place above crane ground on the scene, 2-3 target 1 is set up on lining segment periphery,
Second step carries out comprehensive scanning to each piece of lining segment 4 using spatial digitizer,
Third step forms every piece of lining segment 4 completely scanning point cloud model by splicing target 1,
After the completion of all lining segments 4 of 4th step scan, the splicing of an endless tube piece is completed using virtual connecting method, finally
It forms domain lining segment and scans point cloud model, to obtain three-dimensional dimension of the domain lining segment 4 before actual installation；
S002 lining segment 4 be installed after measurement:
Ground monitoring is controlled the target 1 in net pilot measurement to shield machine working shaft by the first step,
Target 1 is set in second step tunnel,
Third step arranges spatial digitizer in suitable position, and backsight point is target spot, carries out domain scanning；
The monitoring data of S003 comparison step S001 and step S002, comparative analysis lining segment 4 in non-erection stage and
Deformation after being installed.
Specifically, lining segment 4 is monitored in two stages, it is first when lining segment reaches construction site first
The collection that piecemeal carries out 4 three-dimensional data of lining segment obtains erection stage lining segment 4 by the initial deformation after soil pressure
Value；Then it is measured again after lining segment installs and forms a domain while acquiring data and obtain the construction rank of shield 5
Section is that lining segment 4 is installed rear lining segment 4 by the deformation values after soil pressure；To be installed according to lining segment 4
The date comprision lining segment 4 of front and back is in erection stage and the i.e. deformation of 5 construction stage of shield after being installed.
Preferably, using three station scan patterns respectively in 4 lower left of lining segment, 4 bottom right of lining segment in step S001
Side, 4 rear upper of lining segment, three directions carry out comprehensive scanning to same lining segment 4, to guarantee to serve as a contrast each piece
It builds section of jurisdiction 4 and carries out 360 ° omni-directional scanning, convenient for obtaining the accurate three-dimensional data of lining segment 4.
Particularly, it scans in view of three-dimensional laser scanner there are scan blind spot, is scanned in step S002 using two stations every time
Mode is spliced by target 1, carries out domain scanning to same lining segment 4.
Preferably, since visibility is poor in shield tunnel, narrow space, environment are complicated, in order to adapt to foregoing work environment,
Spatial digitizer can choose three-dimensional laser total station.
Preferably, according to Fig. 1, position in step S002 in suitable position target 1 and shield transversal line line, such as sweep
Instrument position 1 and position of scanner 23 are retouched, to guarantee that collecting shield-tunneling construction stage tunnel cross-section accurately monitors number in real time
According to.
In conclusion rectangular shield phase of boring tunneling boring deformation monitoring method of the invention is in two stages to lining tube
Piece 4 is monitored, and the collection that elder generation's piecemeal carries out 4 three-dimensional data of lining segment when lining segment reaches construction site first obtains
Erection stage lining segment 4 is by the initial deformation value after soil pressure；Then it is installed in lining segment and forms a domain
Measure again afterwards at the same acquire data obtain 5 construction stage of shield i.e. lining segment 4 be installed rear lining segment 4 by
Deformation values after to soil pressure；To not install rank according to the date comprision lining segment 4 of the installation of lining segment 4 front and back
Section and the deformation for being installed rear 5 construction stage of shield.The monitoring method is by by rectangular shield phase of boring lining tube
The deformation monitoring of piece is split as the deformation monitoring that lining segment installs former and later two stages, more so as to obtain in a short time
Lining papers build segment deformation data, according to comparative analysis lining segment erection stage and Shield Construction Method Used stage deformation feelings
Condition realizes the deformation monitoring of rectangular shield phase of boring full section of tunnel.The monitoring method is easy to operate, at low cost, solves
Conventional monitoring methods monitoring efficiency is low, the poor problem of monitoring data precision, has preferable promotional value.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention.Ability
Any change, the modification that the technical staff in domain does according to the disclosure above content, belong to scope of protection of the claims.
Claims (5)
1. rectangular shield phase of boring tunneling boring deformation monitoring method, which comprises the steps of:
Step 1: the measurement of the non-erection stage of lining segment:
For first step lining segment by place above crane ground on the scene, 2-3 target is set up on lining segment periphery,
Second step carries out comprehensive scanning to each piece of lining segment using spatial digitizer,
Third step forms every piece of lining segment and completely scans point cloud model by splicing target,
After the completion of all lining segment scannings of 4th step, the splicing of an endless tube piece is completed using virtual connecting method, is ultimately formed
Domain lining segment scans point cloud model, to obtain three-dimensional dimension of the domain lining segment before actual installation；
Step 2: lining segment be installed after measurement:
Ground monitoring is controlled the target in net pilot measurement to shield machine working shaft by the first step,
Target is set in second step tunnel,
Third step arranges spatial digitizer in suitable position, and backsight point is target spot, carries out domain scanning；
Step 3: the monitoring data of comparison step one and step 2, comparative analysis lining segment is in non-erection stage and installs
Deformation after.
2. monitoring method according to claim 1, which is characterized in that distinguished in the step 1 using three station scan patterns
Same lining segment is carried out in three lining segment lower left, lining segment lower right, lining segment rear upper directions complete
Azimuth scan.
3. monitoring method according to claim 1, which is characterized in that use two station scan patterns in the step 2, lead to
It crosses target to be spliced, domain scanning is carried out to same lining segment.
4. monitoring method according to claim 1, which is characterized in that the spatial digitizer is three-dimensional laser total station.
5. monitoring method according to claim 1, which is characterized in that suitable position is target and shield in the step 2
Position in transversal line line.
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| CN107091616B (en) * | 2017-06-14 | 2024-04-02 | 上海建工集团股份有限公司 | Abnormal tunnel lining deformation monitoring method |
| CN107270814B (en) * | 2017-07-12 | 2020-05-26 | 中国人民解放军63926部队 | Prefabricated wind tunnel high-precision installation control method |
| CN107664604A (en) * | 2017-09-01 | 2018-02-06 | 郑州大学 | The stress loading three dimensional taest device and method of shield driving face stability analysis |
| CN107965351B (en) * | 2017-12-29 | 2019-06-28 | 上海建工集团股份有限公司 | The automatic monitoring system and method for shield tunnel circumferential weld deformation |
| CN109612406B (en) * | 2018-12-14 | 2020-12-22 | 中铁隧道局集团有限公司 | Random detection method for ring splicing quality of splicing pipe pieces of shield tunnel |
| CN110044289B (en) * | 2019-04-17 | 2020-12-01 | 上海同岩土木工程科技股份有限公司 | Automatic zooming-based tunnel multi-section convergence deformation video monitoring device and method |
| CN111982003A (en) * | 2020-08-31 | 2020-11-24 | 中铁十四局集团有限公司 | Method for detecting stress deformation of shield tunnel segment |
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