CN106441060A - Displacement monitoring device and method for arch circumference of tunnel slip-casting model test - Google Patents
Displacement monitoring device and method for arch circumference of tunnel slip-casting model test Download PDFInfo
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- CN106441060A CN106441060A CN201610838501.6A CN201610838501A CN106441060A CN 106441060 A CN106441060 A CN 106441060A CN 201610838501 A CN201610838501 A CN 201610838501A CN 106441060 A CN106441060 A CN 106441060A
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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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
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- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a displacement monitoring device and method for the arch circumference of a tunnel slip-casting model test. The monitoring device comprises a resistance strain type single-point displacement meter, a rigid measuring line and a data collection device; the resistance strain type single-point displacement meter is fixed on a base plate of a tunnel excavation model; one end of the rigid measuring line is connected with a measuring rod of the resistance strain type single-point displacement meter, the other end of the rigid measuring line is fixed in an arc circumference displacement measuring point of the tunnel excavation model, and thus, rigid measuring line and the measuring rod are in the same line, and vertical to the tangent plane of the corresponding measuring point; and the resistance strain type single-point displacement meter is connected with the data collector via a data transmission line. According to the monitoring device and method, the rigid measuring line is fixed in the measuring point, continuous displacement of the measuring point can be measured accurately, and the disadvantages, in a traditional monitoring method, that the measuring point cannot be fixed, tends to deviate in the arch circumference displacement process and causes inaccurate measurement are overcome.
Description
Technical field
The present invention relates to a kind of encircle all displacement monitors and method for tunnel grouting model test.
Background technology
In recent years, greatly develop underground engineering construction with China, China has become world's tunnels and underground engineering construction
Scale and construction speed first big country.Different difficult problems can be run into, wherein gushing water has dashed forward mud disaster during underground engineering construction
Become one of major casualty occurring in underground engineering construction, have a strong impact on construction speed, cause huge casualties and warp
Ji loss.Gushing water dashes forward the main and effective method of mud hazard management for slip casting method at present, and slip casting method can effectively be administered gushing water and be dashed forward
Mud disaster, plays water blockoff and the effect reinforced.Slip casting method is used widely in engineering practice, but due to grouting theory
Development also far lags behind engineering practice, and slurry injection technique is ripe far away due to a lack of effective theoretical direction.Grouting model test side
Method can more comprehensively and truly simulate the geological structure of complexity, provide foundation for setting up new theory and Mathematical Modeling, be to grind
Study carefully a kind of important means of grouting theory.In tunnel grouting model test, the collection of arch Zhou Weiyi is for analysis slip casting to enclosing
Very crucial effect is played in the impact of rock deformation, assessment surrounding rock stability, how effectively to monitor collection arch in model test
Zhou Weiyi is study hotspot and difficult point.In tunnel model test, the monitoring measurement of simulation of excavation process hogging Zhou Weiyi and
Data Collection is the important content in process of the test.But unlike that Tunnel Engineering is live, carry out encircleing all positions in model test
Move monitoring and there is a following difficult problem：Narrow space, inconvenient operation；Engineering convergence chi, displacement meter etc. are all because of the too big discomfort of size
For model test；One-point measurement mode by total powerstation is easily disturbed, and records displacement discontinuously, and data is limited.At present
Around tunnel model test hogging, the displacement measurement method of rock mainly has：Model casing enters to the profile in tunnel before and after excavating
Rower is fixed, and contrast front and rear profile carries out the calculating of tunnel deformation amount；Measure tunnel with micrometer caliper after the completion of tunnel excavation
On section, the length of several surveys line and lining design length vs calculate deflection etc..But existing method all has measuring point can not
Accurately fix, certainty of measurement relatively low it is impossible to realize while vault sinking and perimeter convergence measurement it is impossible to realize digging process
The drawbacks such as the Real-time Collection of middle deformation data.
Content of the invention
For the above-mentioned problems in the prior art, it is an object of the present invention to provide a kind of be used for tunnel grouting mould
Type test arch Zhou Weiyi single-point monitoring device, this monitoring device have certainty of measurement height, small volume, easily operated, be not subject to narrow and small
Space limits, can achieve the advantages of displacement continuity detects.
Second object of the present invention is to provide a kind of tunnel grouting model test that is used for encircle all system for monitoring displacement, this dress
Put and can realize encircleing the multiple spot accurate measurements in week, monitored by multi-point displacement, arch Zhou Weiyi is monitored.
Third object of the present invention is to provide a kind of tunnel grouting model test that is used for encircle all displacement monitoring methods, utilizes
Said apparatus are monitored, it is possible to achieve the accurate measurement of arch Zhou Weiyi.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of tunnel grouting model test that is used for encircles Zhou Weiyi single-point monitoring device, including resistance-strain type single-point displacement
Meter, rigid survey line data harvester, wherein, described resistance-strain type single point extensometer is fixed on the bottom of tunnel excavation model
On plate；
One end of rigid survey line is connected with the measuring staff of resistance-strain type single point extensometer, and the other end is fixed on tunnel excavation mould
On all displacement measuring points of the arch of type, make rigid survey line with described measuring staff on the same line, and vertical with the tangent plane at corresponding measuring point；
Resistance-strain type single point extensometer is connected with transacter by data line.
The all displacement measuring points of arch are the monitoring point being used for monitoring arch Zhou Weiyi, by measuring the displacement of this monitoring point, really
The fixed displacement encircleing week.
Rigid survey line refers to that quality is hard, is not susceptible to the survey line deforming.Single point extensometer is fixed on firm banking, its position
Put and fixed, one end of rigid survey line is connected with single point extensometer, that is, the position at this end of rigid survey line is fixed；The other end is solid
It is scheduled on all displacement measuring points of arch of tunnel grouting model, that is, this end can be subjected to displacement with the arch week of tunnel grouting model and occur
Corresponding displacement.Because rigid survey line will not deform, so, resistance-strain type single point extensometer is in the pulling force of rigid survey line
Deform under effect, this deflection is the displacement encircleing week, and the direct embodiment of this deflection is resistance change, and resistance
Variable quantity then can be detected by transacter.
Because one end of rigid survey line is fixed on all displacement measuring points of arch, that is, measuring point is accurate determination, and survey line is firm
Property survey line, substantially do not deform upon it is possible to realize encircle Zhou Weiyi accurate measurement.
Preferably, one end of described resistance-strain type single point extensometer is embedded in the base plate of tunnel grouting model, another
End is located at base plate external, is connected with described rigid survey line positioned at the measuring staff of base plate external so that described measuring staff is existed with rigid survey line
On same straight line.
It is further preferred that described resistance-strain type single point extensometer imbeds the length of the part in tunnel grouting pattern board
Spend the half for total length.It is to unify for convenience that resistance-strain type single point extensometer is buried half, improves the unification of construction
Property.
Preferably, also include firm banking, described firm banking includes fixed plate and connector, fixed plate and connector
One end is generally vertically arranged, and firm banking is carried out admittedly by way of imbedding tunnel grouting pattern board by the other end of connector
Fixed.
It is further preferred that opening up through hole or groove in described fixed plate, described resistance-strain type single point extensometer is fixed
In this hole or groove, described through hole reserved setpoint distance with the periphery of fixed plate.
Firm banking can be fixed to resistance-strain type single point extensometer, prevents the movement of displacement meter, in fixed plate
Through hole and fixed plate periphery leave setpoint distance, when resistance-strain type single point extensometer is obliquely installed, need firm banking
It is obliquely installed, now, the periphery of fixed plate can be embedded in base plate with contacts baseplate or part, play a supporting role, prevent
The incline direction of resistance-strain type single point extensometer changes.
Preferably, described rigid survey line is seizing wire.
Seizing wire is not only less likely to occur deformation, and has higher intensity, not easy fracture, is suitably applied to draw and answers
In the big environment of power.
A kind of tunnel grouting model test that is used for encircles all system for monitoring displacement, encircles all displacement monitorings including at least two groups of single-points
Device, every group all includes resistance-strain type single point extensometer and rigid survey line, and described resistance-strain type single point extensometer is fixed on
On the base plate of tunnel grouting model；One end of rigid survey line is connected with the measuring staff of resistance-strain type single point extensometer, and the other end is solid
It is scheduled on all displacement measuring points of arch of tunnel grouting model；
The measuring staff of resistance-strain type single point extensometer in all displacement monitors of every group of single-point arch and rigid survey line with
On one straight line and vertical with the tangent plane of corresponding measuring point position, all of resistance-strain type single point extensometer is all adopted with data
Acquisition means connect, and all of resistance-strain type single point extensometer is all connected with data acquisition unit.
Realize while multi-point displacement monitoring, can more accurate measurements tunnel grouting model arch Zhou Weiyi.
Preferably, all displacement monitors of one group of single-point arch are vertically arranged, and resistance-strain type single point extensometer is fixed on bottom
The middle part of plate, one end of rigid survey line is fixed on vault, the displacement of monitoring vault.
Resistance-strain type single point extensometer is fixed in the middle part of base plate, and rigid survey line is fixed on vault, and now, displacement meter is with just
Property survey line is all vertically arranged, can be with the displacement of accurate measurements vault.
It is further preferred that the group number of all displacement monitors of single-point arch is odd number, one of which is vertically arranged, other groups
It is obliquely installed, so that the fixing point of the fixed position of resistance-strain type single point extensometer in every group and rigid survey line is located at and vertically set
The both sides of the rigid survey line put.
A kind of tunnel grouting model test that is used for encircles all displacement monitoring methods, comprises the steps：
1) determine the arch week displacement monitoring point position of tunnel grouting model；
In the same section part of tunnel grouting model, the quantity of the measuring point determining as needed, arch can be entered all sections
Row is, and as measuring point, the method is easier to implement each cut-point.
In one end of the position of measuring point fixing rigidity survey line, by rivet, rigid survey line can be fixed.Stretch just
Property survey line, make rigid survey line vertical with the tangent plane at corresponding measuring point, determine angle of inclination, rigid survey line and the bottom of rigid survey line
The contact point of plate is fixed position on base plate for the resistance-strain type single point extensometer；
2) hole in resistance-strain type single point extensometer fixed position and excavate, resistance-strain type displacement meter is inserted and fixes
In base, both are put in boring, and adjust the measuring staff of resistance-strain type displacement meter with rigid survey line on the same line, and
Vertical with the tangent plane at corresponding measuring point, after adjusting, filled and tamped；
3) repeat above step, all displacement monitors of setting multigroup single-point arch, realize prison while multiple spot arch Zhou Weiyi
Survey.
4) with the excavation simulation of tunnel grouting model test, all displacement monitors of single-point arch can constantly monitor displacement
Change, and the change of arch Zhou Weiyi is transmitted to data acquisition unit by data line, data acquisition unit can bit of storage
Move variable quantity data and displacement changing curve is drawn in synchronization.
Beneficial effects of the present invention are：
1st, the rigid survey line in the present invention is fixed on measuring point, can be overcome with the continuous dislocation of this measuring point of Accurate Determining
In conventional monitoring methods, measuring point cannot be fixed, and during arch is subjected to displacement in week, deviation in measuring point, causes to measure inaccurate
The drawbacks of.
2nd, in the present invention, the position of resistance-strain type displacement meter is fixed, and displacement meter is connected with rigid survey line, rigid survey line and
It is fixedly connected between measuring point, when arch is subjected to displacement in week, you can corresponding displacement is occurred by rigid survey line, and then is entered by displacement meter
Row measurement, it is possible to achieve the continuous real-time displacement monitoring of each measuring point.
3rd, pass through to arrange all displacement monitors of multigroup single-point arch, realize monitoring while multiple spot arch Zhou Weiyi, you can with
Realize measurement while vault sinking and perimeter convergence, more comprehensively monitor the change in displacement situation of tunnel excavation process.
4th, the device volume that the present invention uses is little, is not limited by small space it is easy to installation operation is it is adaptable to tunnel grouting
Model test.
5th, data acquisition unit can achieve the Real-time Collection of displacement data change, and can draw displacement changing curve in real time,
Zhou Weiyi will be encircleed intuitively change.
Brief description
Fig. 1 is all displacement monitor overall structure diagrams of single-point arch of the present invention；
Fig. 2 is all displacement monitor overall structure diagrams of multiple spot arch of the present invention.
Wherein, 1, resistance-strain type single point extensometer, 2, rigid survey line, 3, firm banking, 4, rivet, 5, data transfer
Line, 6, data acquisition unit.
Specific embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Tunnel grouting model is the model for simulation tunnel slip casting, and tunnel grouting is with suitable method, some energy are solid
The slurries changed inject in the crack of ground or the space in tunnel, improve tunnel physical force by modes such as displacement, filling, extruding
The method learning property.The shape in the cross section of tunnel grouting model is also the arch similar to tunnel.Tunnel grouting model also wraps
Include domes and base plate, base plate is located at the lower section of domes, is equivalent to the road in tunnel.The surface of base plate is preferred herein
For tabular, that is, surface does not have hollow, belongs to Utopian test model.But in fact, the concrete pattern to backplate surface
There is no particular/special requirement, as long as meeting the requirement obtaining tunnel grouting model with the cooperation of arched tunnel model, you can.
Embodiment 1
As shown in figure 1, a kind of encircle Zhou Weiyi single-point monitoring device for tunnel grouting model test, including resistance-strain type
Single point extensometer 1, rigid survey line 2, firm banking 3 data harvester 6, wherein, described firm banking 3 is fixed on tunnel note
On the base plate of slurry model, resistance-strain type single point extensometer 1 is fixed on firm banking 3；
One end of rigid survey line 2 is connected with resistance-strain type single point extensometer 1, and the other end is fixed on tunnel grouting model
On all displacement measuring points of arch；
Resistance-strain type single point extensometer 1 is connected with transacter 6 by data line 5.
The all displacement measuring points of arch are the monitoring point being used for monitoring arch Zhou Weiyi, by measuring the displacement of this monitoring point, really
The fixed displacement encircleing week.
Rigid survey line 2 refers to that quality is hard, is not susceptible to the survey line deforming, elastically-deformable survey line will not occur, this
It is a kind of preferable situation, because any material all can produce deformation in the presence of pulling force or pressure, as long as survey line is using
During elastic deformation compared to arch week displacement be negligible, you can this survey line be called rigidity survey line.Due to surveying
During amount arch Zhou Weiyi, rigid survey line 2 can be subject to larger active force, and in order to meet the need of work of reality, that is, rigid survey line 2 exists
By, under larger pulling force effect, remaining in that reset condition, not rupturing, play the purpose of real-time monitoring, this is accomplished by
Rigid survey line 2 has enough intensity, this intensity with rigid survey line 2 during monitoring the maximum pull that is subject to for lower limit.
Resistance-strain type single point extensometer 1 is made up of measuring staff, pillar, sliding resistor etc., tested works and measuring staff
Connect, when tested works deforms, drive displacement meter measuring staff to produce displacement, slidingtype electricity is passed to by switching mechanism
Resistance device, displacement physical quantity is changed into electric signal amount, is sent to data acquisition unit 6 through data line 5 by sliding resistor,
Can measure by the variable quantity of the displacement of geodesic structure.
Single point extensometer is the displacement for monitoring certain measuring point, not tangible with the call of traditional displacement meter
Difference, because the displacement measuring tested works is all certain point measuring in tested works, relative before and after its displacement
Amount, this is in one kind ideally, and that is, each point in tested works is all the direction of displacement generation identical bits along monitoring point
The translation of shifting amount, monitors the displacement of any and can get overall displacement, have ignored the tested works each point of itself
The difference of displacement.
Because tunnel grouting model is during slip casting, slip casting is not overall slip casting, but local slip casting, so tunnel
The arch Zhou Weiyi of the various location of the domes of slip casting model different changes can occur it is impossible to the displacement of any Lai
Represent the displacement of entirety, so, can rule of thumb, the section part of domes, region is substantially carried out to the entirety in arch week
Divide, as a region in the basically identical certain scope of displacement, select a little as measuring point, institute in this region
So that the displacement due to encircleing a lot of position of Zhou Huiyou is different, so needing multiple measuring points are monitored.Can also be little at one
Determine multiple measuring points in region, by measuring the displacement of multiple measuring points, average, obtain approximate displacement.
Resistance-strain type single point extensometer 1 is fixed on firm banking 3, and its position has been fixed, one end of rigid survey line 2
It is connected with the measuring staff of resistance-strain type single point extensometer 1, rigid survey line 2 can drive the measuring staff of displacement meter that phase occurs when being subjected to displacement
The displacement answered, the other end is fixed on all displacement measuring points of arch of tunnel grouting model, and that is, this end can be with tunnel grouting model
Arch is subjected to displacement and corresponding displacement occurs in week.Because rigid survey line 2 will not occur elastic deformation, so, resistance-strain type list
The measuring staff of point displacement meter 1 is subjected to displacement under the pulling force effect of rigid survey line 2, passes to slidingtype resistance by switching mechanism
Device, displacement physical quantity is changed into electric signal amount by sliding resistor, and this electric signal amount is encircles all displacements, electric signal amount warp
Data line 5 is sent to data acquisition unit 6, reads all displacements of arch, and draws corresponding displacement curve.
Because one end of rigid survey line 1 is fixed on all displacement measuring points of arch, when arch is subjected to displacement in week, the displacement of this measuring point
Directly embody the displacement of arch this points all, the displacement of this measuring point substantially embodies the arch week displacement in certain area.This measuring point
When being subjected to displacement, under the restriction effect of the other structures of tunnel model, the direction of displacement of measuring point is usually to be somebody's turn to do at week along with encircleing
The vertical direction in the tangent plane direction of point position.Because all displacements of arch are not too large, the elevation angle to rigid survey line 2 can be ignored
Impact, you can be interpreted as, the direction of displacement of this measuring point is the direction of the extension along rigid survey line 2, so, displacement away from
From the distance being rigid survey line 2 movement, the as distance of measuring staff movement.So, measurement now is accurate.
As a kind of preferred scheme, the bottom of described resistance-type single point extensometer 1 is embedded in tunnel grouting pattern board
In, the one end being provided with measuring staff is located at base plate external, and measuring staff is connected with described rigid survey line 2.
The length that described resistance-strain type single point extensometer 1 imbeds the part in tunnel grouting pattern board is total length
Half.
It is for fixed displacement meter in resistance-strain type single point extensometer 1 embedment tunnel grouting pattern board, burying herein
If half is not compulsive requirement, but on the premise of the fixing intensity ensureing displacement meter, it is easy to construct, unified construction mark
Accurate.
The effect of firm banking 3 herein is used for the purpose of fixed resistance strain-type single point extensometer 1, measures in reality
Cheng Zhong, needs the measuring staff of requirement resistance-strain type single point extensometer 1 with rigid survey line 2 on the same line, and the side of this straight line
To, the accuracy of such guarantee measurement vertical with the tangent plane at point position.If only by resistance-strain type single-point displacement
Meter 1 is embedded on the base plate of tunnel grouting model, and displacement meter can shift under the pulling force effect of rigid survey line 2, or even solid
Fixed insecure, it is pulled out, cause the failure monitored.
As one kind preferred embodiment, described firm banking 3 includes fixed plate and connector, and fixed plate is tied for tabular
Structure, connector can be platy structure or rod-like structure.Connector is vertically arranged with fixed plate, opens in fixed plate
If groove, resistance-strain type displacement meter 1 is inserted in groove, and the lower end of displacement meter is buried in the soleplate.
According to the direction of tangent plane at corresponding measuring point, determine the direction of rigid survey line 2, and then determine resistance-strain type displacement meter
1 embedded point, displacement meter is pressed in the groove of insertion fixed plate, makes the outer surface of displacement meter and the connector table of firm banking 3
Face laminating setting, the incline direction of displacement meter and firm banking 3 is adjusted so that measuring staff in displacement meter and rigid survey line
On the same line, and vertical with the tangent plane at measuring point.Keep firm banking 3 and the incline direction of displacement meter and position constant,
Embedded firm banking 3 and displacement meter.Because the periphery of the groove in the fixed plate of firm banking 3 and fixed plate also has a spacing
From firm banking 3 is obliquely installed, and so that the side of fixed plate is also supported with contacts baseplate, or a part for fixed plate is buried
Enter base plate, with this of contacts baseplate, partly fixed plate is played with the effect of support, resistance-strain type single point extensometer is kept setting
There is certain help at fixed angle of inclination, is also prevented from resistance-strain type single point extensometer and slides.
As a kind of preferred mode, rigid survey line 2 is seizing wire.Seizing wire not only deformation is less likely to occur, and
And there is higher intensity, and not easy fracture, it is suitably applied in the big environment of tension.Rigid survey line can also be other materials
Matter, but should meet, firmly, there is higher intensity, be not susceptible to the characteristics such as deformation.
Embodiment 2
As shown in Fig. 2 a kind of encircle all system for monitoring displacement for tunnel grouting model test, encircle including at least two groups of single-points
All displacement monitors, every group all includes resistance-strain type single point extensometer 1, rigid survey line 2 and firm banking 3, described fixation
Base 3 is fixed on the base plate of tunnel grouting model, and resistance-strain type single point extensometer 1 is fixed on firm banking 3；Rigidity is surveyed
One end of line 2 is connected with the measuring staff of resistance-strain type single point extensometer 1, and the other end is fixed on the arch Zhou Weiyi of tunnel grouting model
On measuring point；
The measuring staff of resistance-strain type single point extensometer 1 in all displacement monitors of every group of single-point arch and rigid survey line 2 exist
On same straight line and vertical with the tangent plane of corresponding measuring point position, all of resistance-strain type single point extensometer is all and data
Harvester connects.Principle at this is identical with the principle in embodiment 1, and the displacement in order to ensure each measuring point is monitored
Accurately.
Wherein, all displacement monitors of one group of single-point arch are vertically arranged, and resistance-strain type single point extensometer 1 is fixed on base plate
Middle part, one end of rigid survey line 2 is fixed on vault, and now, the measuring staff of resistance-strain type single point extensometer 1, rigid survey line 2 are equal
For being vertically arranged, can be used for monitoring the displacement of vault.
The group number of all displacement monitors of single-point arch is odd number, and one of which is vertically arranged, and other groups are obliquely installed, and makes every
The fixing point of the fixed position of resistance-strain type single point extensometer in group and rigid survey line is located at vertically arranged rigid survey line
Both sides.
The all displacement measuring devices of each group single-point arch are arranged substantially symmetrically, can more comprehensively analyze the displacement in arch week, and
The difference of the displacement of all both sides of arch can be contrasted, further the impact to arch week for the analysis slip casting.
A kind of tunnel grouting model test that is used for encircles all displacement monitoring methods, comprises the steps：
1) determine tunnel grouting model encircles all displacement monitoring measuring points and resistance-strain type single point extensometer 1 on base plate
Fixed position；
In the same section part of tunnel grouting model, the quantity of the measuring point determining as needed, arch can be entered all sections
Row is, and as measuring point, the method is easier to implement each cut-point.
In one end of the position of measuring point fixing rigidity survey line 2, by rivet, rigid survey line 2 can be fixed.Stretch
Rigid survey line 2, makes rigid survey line 2 vertical with the tangent plane at corresponding measuring point, determines the angle of inclination of rigid survey line 2, and rigidity is surveyed
Line 2 is fixed position on base plate for the resistance-strain type single point extensometer 1 with the contact point of base plate.
2) hole in resistance-strain type single point extensometer 1 fixed position and excavate, resistance-strain type displacement meter 1 is inserted solid
Determine, in base 3, both to be put in boring, and adjust the measuring staff of resistance-strain type displacement meter 1 with rigid survey line 2 in same straight line
On, and vertical with the tangent plane at corresponding measuring point, after adjusting, filled and tamped.
3) repeat above step, all displacement monitors of setting multigroup single-point arch, realize prison while multiple spot arch Zhou Weiyi
Survey.
4) with the excavation simulation of tunnel grouting model test, all displacement monitors of single-point arch can constantly monitor displacement
Change, and the change of arch Zhou Weiyi is transmitted to data acquisition unit by data line, data acquisition unit can bit of storage
Move variable quantity data and displacement changing curve is drawn in synchronization.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not to invention protection domain
Restriction, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art are not required to
The various modifications that creative work to be paid can be made or deformation are still within the scope of the present invention.
Claims (10)
1. a kind of for tunnel grouting model test arch Zhou Weiyi single-point monitoring device it is characterised in that：Including resistance-strain type
Single point extensometer, rigid survey line data harvester, wherein, described resistance-strain type single point extensometer is fixed on tunnel excavation
On the base plate of model；
One end of rigid survey line is connected with the measuring staff of resistance-strain type single point extensometer, and the other end is fixed on tunnel excavation model
On all displacement measuring points of arch, make rigid survey line with described measuring staff on the same line, and vertical with the tangent plane at corresponding measuring point；
Resistance-strain type single point extensometer is connected with transacter by data line.
2. according to claim 1 for tunnel grouting model test encircle Zhou Weiyi single-point monitoring device it is characterised in that：
One end of described resistance-strain type single point extensometer is embedded in the base plate of tunnel grouting model, and the other end is located at base plate external,
Be connected with described rigid survey line positioned at the measuring staff of base plate external so that described measuring staff with rigid survey line on the same line.
3. according to claim 2 for tunnel grouting model test encircle Zhou Weiyi single-point monitoring device it is characterised in that：
The length that described resistance-strain type single point extensometer imbeds the part in tunnel excavation pattern board is the half of total length.
4. according to claim 1 for tunnel grouting model test encircle Zhou Weiyi single-point monitoring device it is characterised in that：
Also include firm banking, described firm banking includes fixed plate and connector, fixed plate is generally vertically set with one end of connector
Put, firm banking is fixed by way of imbedding tunnel excavation pattern board by the other end of connector.
5. according to claim 4 for tunnel grouting model test encircle Zhou Weiyi single-point monitoring device it is characterised in that：
Through hole is opened up, described resistance-strain type single point extensometer is fixed in this through hole, described through hole and fixed plate in described fixed plate
Periphery reserve setpoint distance.
6. according to claim 1 for tunnel grouting model test encircle Zhou Weiyi single-point monitoring device it is characterised in that：
Described rigid survey line is seizing wire.
7. a kind of for all system for monitoring displacement of tunnel grouting model test arch it is characterised in that：Encircle including at least two groups of single-points
All displacement monitors, every group all includes resistance-strain type single point extensometer and rigid survey line, described resistance-strain type single-point position
Move meter to be fixed on the base plate of tunnel grouting model；One end of rigid survey line is connected with the measuring staff of resistance-strain type single point extensometer
Connect, the other end is fixed on all displacement measuring points of arch of tunnel grouting model；
The measuring staff of resistance-strain type single point extensometer in all displacement monitors of every group of single-point arch and rigid survey line are with always
On line and vertical with the tangent plane of corresponding measuring point position, all of resistance-strain type single point extensometer is all filled with data acquisition
Put connection, all of resistance-strain type single point extensometer is all connected with data acquisition unit.
8. according to claim 7 encircle all system for monitoring displacement for tunnel grouting model test it is characterised in that：Wherein
The all displacement monitors of one group of single-point arch are vertically arranged, and resistance-strain type single point extensometer is fixed on the middle part of base plate, and rigidity is surveyed
One end of line is fixed on vault, the displacement of monitoring vault.
9. according to claim 8 encircle all system for monitoring displacement for tunnel grouting model test it is characterised in that：Single-point
The group number of all displacement monitors of arch is odd number, and one of which is vertically arranged, and other groups are obliquely installed, and so that the resistance in every group is answered
The fixing point of the fixed position of variant single point extensometer and rigid survey line is located at the both sides of vertically arranged rigid survey line.
10. a kind of for all displacement monitoring methods of tunnel grouting model test arch it is characterised in that：Comprise the steps：
1) determine the arch week displacement monitoring point position of tunnel grouting model, in one end of the position of measuring point fixing rigidity survey line,
Stretch rigid survey line, make rigid survey line vertical with the tangent plane at corresponding measuring point, now rigid survey line with the contact point of base plate is
For fixed position on base plate for the resistance-strain type single point extensometer；
2) hole in resistance-strain type single point extensometer fixed position and excavate, resistance-strain type displacement meter is inserted firm banking
In, and both are put in boring, adjust the measuring staff of resistance-strain type displacement meter with rigid survey line on the same line, and with phase
Answer the tangent plane at measuring point vertical, filled and tamp；
3) repeat above step, all displacement monitors of setting multigroup single-point arch, realize monitoring while multiple spot arch Zhou Weiyi.
4) with the excavation simulation of tunnel grouting model test, all displacement monitors of single-point arch can constantly monitor the change of displacement
Change, and the change of arch Zhou Weiyi is transmitted to data acquisition unit by data line, data acquisition unit can store displacement
Variable quantity data is simultaneously synchronous to draw displacement changing curve.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663013A (en) * | 2018-05-24 | 2018-10-16 | 上海应用技术大学 | Single point extensometer and tunnel excavation advance core deformation measurement method |
| CN111692958A (en) * | 2020-07-06 | 2020-09-22 | 浙江工业大学 | Device and method for measuring shield attitude in steel sleeve |
| CN112683212A (en) * | 2020-12-15 | 2021-04-20 | 山东建筑大学 | Device and method for measuring out-of-plane movement of fire-receiving steel arch |
| CN113202181A (en) * | 2021-06-16 | 2021-08-03 | 中建八局第四建设有限公司 | Simple and accurate manufacturing method of arc-shaped edge-sealing template |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2898758Y (en) * | 2006-01-12 | 2007-05-09 | 上海大学 | Engineering-structured displacement-deforming measuring apparatus |
| CN101281013A (en) * | 2008-05-15 | 2008-10-08 | 广州市建筑集团有限公司 | Building earth surface deformation monitoring device and its use method |
| CN102353318A (en) * | 2011-07-11 | 2012-02-15 | 清华大学 | Long-spans mall-displacement automatic measuring method and apparatus thereof |
| CN102620708A (en) * | 2012-04-17 | 2012-08-01 | 南京工业大学 | Method and device for detecting deformation of high-altitude concealed building component on site |
| CA2751278A1 (en) * | 2011-08-31 | 2013-02-28 | Yieldpoint Inc. | Strain measuring and monitoring device |
| US20130054156A1 (en) * | 2011-08-31 | 2013-02-28 | Yieldpoint Inc. | Strain measuring and monitoring device |
-
2016
- 2016-09-21 CN CN201610838501.6A patent/CN106441060A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2898758Y (en) * | 2006-01-12 | 2007-05-09 | 上海大学 | Engineering-structured displacement-deforming measuring apparatus |
| CN101281013A (en) * | 2008-05-15 | 2008-10-08 | 广州市建筑集团有限公司 | Building earth surface deformation monitoring device and its use method |
| CN102353318A (en) * | 2011-07-11 | 2012-02-15 | 清华大学 | Long-spans mall-displacement automatic measuring method and apparatus thereof |
| CA2751278A1 (en) * | 2011-08-31 | 2013-02-28 | Yieldpoint Inc. | Strain measuring and monitoring device |
| US20130054156A1 (en) * | 2011-08-31 | 2013-02-28 | Yieldpoint Inc. | Strain measuring and monitoring device |
| CN102620708A (en) * | 2012-04-17 | 2012-08-01 | 南京工业大学 | Method and device for detecting deformation of high-altitude concealed building component on site |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663013A (en) * | 2018-05-24 | 2018-10-16 | 上海应用技术大学 | Single point extensometer and tunnel excavation advance core deformation measurement method |
| CN111692958A (en) * | 2020-07-06 | 2020-09-22 | 浙江工业大学 | Device and method for measuring shield attitude in steel sleeve |
| CN111692958B (en) * | 2020-07-06 | 2024-06-07 | 浙江工业大学 | Device and method for measuring shield posture in steel sleeve |
| CN112683212A (en) * | 2020-12-15 | 2021-04-20 | 山东建筑大学 | Device and method for measuring out-of-plane movement of fire-receiving steel arch |
| CN113202181A (en) * | 2021-06-16 | 2021-08-03 | 中建八局第四建设有限公司 | Simple and accurate manufacturing method of arc-shaped edge-sealing template |
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