CN110030939A - A kind of country rock linear displacement measuring device and method - Google Patents
A kind of country rock linear displacement measuring device and method Download PDFInfo
- Publication number
- CN110030939A CN110030939A CN201910271039.XA CN201910271039A CN110030939A CN 110030939 A CN110030939 A CN 110030939A CN 201910271039 A CN201910271039 A CN 201910271039A CN 110030939 A CN110030939 A CN 110030939A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- protection sleeve
- country rock
- telescoping tube
- linear displacement
- Prior art date
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Classifications
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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
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- 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
Abstract
This application discloses a kind of country rock linear displacement measuring device and method, device includes: protection sleeve pipe, and be longitudinally set in the measurement drilling of tunnel tunnel face front along tunnel, the protection sleeve pipe includes several protection sleeve pipe units；To connect the telescoping tube of the adjacent protection sleeve pipe unit, the both ends of the telescoping tube are connect with the adjacent protection sleeve pipe unit respectively；Reflective mirror, to be arranged in the hole bottom of the measurement drilling along the cross-sectional direction of the protection sleeve pipe；To several laser range finders cooperated with the reflective mirror, each laser range finder is fixedly connected by fixed device with the telescopic segment of the corresponding telescoping tube, by measuring the laser range finder at a distance from the reflective mirror, the measurement of the relative displacement between each telescopic segment and the bottom hole is realized.Shift value where laser range finder can accurately measure telescoping tube at country rock, to accurately measure the deformation of country rock at each measuring point.
Description
Technical field
The present disclosure relates generally to deformation of geotechnical engineering monitoring technical fields, and in particular to a kind of country rock linear displacement measurement dress
It sets and method.
Background technique
The deformation of foundation pit country rock is one of physical parameter mostly important in base pit engineering detection, for understanding matter of constructing
Amount, arrangement and method for construction reasonability and instruct Contraction in Site to have very important significance；And along with deep base in recent years
The base pit engineerings such as hole, special soils foundation pit are greatly developed, and urgently need a kind of can accurately be convenient for measuring foundation pit surrouding rock deformation
Device, this is proposed no small challenge to monitoring instrument now.
Currently, measuring surrounding rock displacement common method in base pit engineering is electronic total station mensuration.Utilize whole station
The advantages of type electronic tachometer measurement foundation pit surrounding rock displacement is that speed is fast, precision is high, function is strong and high degree of automation；The disadvantage is that
The deformation for the surface country rock that foundation pit country rock is exposed in air can only be measured, and is unable to measure inside exposure in a certain range
Non- excavation section country rock deformation, and measurement data cannot accomplish real-time measurement；In addition, with the continuous explosion of face,
Face to be measured is constantly pushed ahead, and multiple frame station is needed, and is worked relatively complicated and is easily caused human error.But as base
It cheats for surrounding rock displacement measurement and safe early warning, the real-time of data is extremely important.
Summary of the invention
In view of drawbacks described above in the prior art or deficiency, position in foundation pit country rock can effectively be monitored by being intended to provide one kind
The scheme of shifting.
In a first aspect, the embodiment of the present application provides a kind of country rock linear displacement measuring device, comprising:
Protection sleeve pipe, to be longitudinally set to along tunnel in the measurement drilling of tunnel tunnel face front, if the protection sleeve pipe includes
Dry protection sleeve pipe unit；
To connect the telescoping tube of the adjacent protection sleeve pipe unit, the both ends of the telescoping tube respectively with the adjacent guarantor
The connection of sheath pipe unit, the intermediate body portions of the telescoping tube are divided into telescopic segment, and the telescopic segment is can be along the protection sleeve pipe
The organ type telescoping tube of longitudinal extension, the telescopic segment by injecting cement paste with country rock to be fixedly connected；
Reflective mirror, to be arranged in the hole bottom of the measurement drilling along the cross-sectional direction of the protection sleeve pipe；
To several laser range finders cooperated with the reflective mirror, each laser range finder is by fixed device and accordingly
The telescopic segment of the telescoping tube be fixedly connected, by measuring the laser range finder with the reflective mirror at a distance from, realize respectively
The measurement of relative displacement between a telescopic segment and the bottom hole.
The protection sleeve pipe unit is connected through a screw thread with the telescoping tube, and structure is simple, quick construction.
The fixed device include along the protection sleeve pipe cross-sectional direction be arranged fixed link, the two of the fixed link
End is fixedly connected with the two sides of the flexible inside pipe wall of the organ type respectively, and the fixed link is equipped with to the fixation Laser Measuring
The fixing piece of distance meter.In this way, installation and operation simple and convenient, convenient for construction.
The fixed device further includes the auxiliary fixing member longitudinally disposed along the protection sleeve pipe, the auxiliary fixing member
Both ends are fixedly connected with the adjacent protection sleeve pipe respectively, and the laser range finder is with only can be along the vertical of the auxiliary fixing member
It is connect to the mode of opposite sliding with the auxiliary fixing member.Can guarantee the direction of laser range finder always with protection sleeve pipe
Vertical consistency improves the accuracy of measurement to guarantee that laser range finder and reflective mirror remain good cooperation.
The protection sleeve pipe uses HPVC hard tube.
Each laser range finder and the telescoping tube correspond, it may be convenient to it is in place to measure each telescoping tube institute
Set the misalignment at place.
The setting position of each laser range finder is mutually staggered along the cross-sectional direction of the protection sleeve pipe, is made each sharp
Optar cooperates with reflecting mirror, realizes the measurement at each telescoping tube measuring point.
The bottom end of the protection sleeve pipe is equipped with the rotary table pipe of inner sealing, and the reflective mirror is laid on the bottom of the rotary table pipe
End face, the diameter of section of rotary table tube bottom end face are greater than the diameter of protection sleeve pipe, reflective mirror are located to the bottom face of rotary table pipe
On can be more convenient realization laser range finder range measurement, and prevent injecting cement paste from pouring into.
The country rock linear displacement measuring device further includes control system, and the control system is by wiredly and/or wirelessly
Mode is communicatively coupled with the laser range finder.
A kind of country rock linear displacement measurement method, comprising the following steps:
Step 1: setting measurement drilling in front of tunnel heading；
Step 2: country rock linear displacement measuring device is put into the measurement drilling；
Step 3: passing through each laser after slurry consolidation to slip casting between measurement drilling and the hole of protection sleeve pipe
The distance between rangefinder and the reflecting mirror monitor value measure the surrounding rock displacement value in the drilling.
In the step 3, cement mortar is injected between measurement drilling and the hole of protection sleeve pipe.
Country rock linear displacement measuring device and method provided by the embodiments of the present application, the telescoping tube of displacement measuring device with enclose
Rock is fixedly connected by injecting cement paste, is fixedly connected with the intermediate body portion of telescoping tube with the junction of fixed link as measurement brill
The measuring point in hole.Due to the part tube body among telescoping tube, its own can stretch along drilling longitudinal direction, work as country rock
When deformation, telescoping tube can be subjected to displacement together with the deformation of country rock, the fixed link and laser ranging being fixedly connected with telescoping tube
Instrument is together along the longitudinal generation relative displacement of drilling, and laser range finder can accurately measure the position at the country rock of telescoping tube place at this time
Shifting value, to accurately measure the deformation of country rock at each measuring point.The intermediate tube body of telescoping tube uses the shape of organ type, can be with
Increase the contact area with injecting cement paste, is preferably consolidated with injecting cement paste, thus more accurate measurement surrouding rock deformation.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the superstructure schematic diagram of apparatus of the present invention；
Fig. 2 is the upper lateral cross section structure schematic diagram of apparatus of the present invention；
Fig. 3 is the substructure schematic diagram of apparatus of the present invention.
In figure: 1- protection sleeve pipe；2- cement mortar；3- telescoping tube；301- organ type telescoping tube；401- fixing piece；402-
Auxiliary fixing member；5- conducting cable；6- rotary table pipe；7- reflective mirror；8- control system；9- laser range finder.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the invention is instead of all the embodiments.For ease of description, part relevant to invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the embodiment of the present invention for usually describing and showing in this figure
Component can arrange and design with a variety of different configurations.It is understood that specific embodiment described herein is only
It is only used for explaining related invention, rather than the restriction to the invention.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, belong to " setting ",
" connection " should broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or the connection of one；It can be
Mechanical connection, is also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with by intermediary, can be two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
As shown in Figures 1 to 3, a kind of country rock linear displacement measuring device, including protection sleeve pipe 1, telescoping tube 3, several fixations
Device and laser range finder 9, reflective mirror 7.
Wherein, protection sleeve pipe 1 includes several protection sleeve pipe Unit 1, to be longitudinally set to tunnel tunnel face front along tunnel
Measurement drilling in, preferentially use HPVC hard tube.
It is attached between protection sleeve pipe Unit 1 by telescoping tube 3.Wherein, the intermediate body portions of telescoping tube 3 are divided into flexible
Section, telescopic segment is can be along the organ type telescoping tube 301 of 1 longitudinal extension of protection sleeve pipe, to be fixed by injecting cement paste and country rock
Connection；The both ends of telescoping tube 3 are connected through a screw thread with adjacent protection sleeve pipe Unit 1 respectively.
The fixation device to fixed laser rangefinder 9 is equipped at each organ type telescoping tube 301, fixed device includes
Along protection sleeve pipe 1 cross-sectional direction be arranged fixed link, the both ends of fixed link respectively with 301 inner wall of organ type telescoping tube two
Side is fixedly connected, and fixed link is equipped with the fixing piece 401 to fixed laser rangefinder.The form of fixing piece 401 includes not
It is limited to the fastener to fix laser range finder, tied rope to bundle connection etc..
Fixed device further includes the auxiliary fixing member 402 longitudinally disposed along protection sleeve pipe 1, the both ends of auxiliary fixing member 402
It is fixedly connected respectively with adjacent protection sleeve pipe 1, laser range finder is with only can be along the longitudinally opposed sliding of auxiliary fixing member 402
Mode is connect with auxiliary fixing member 402.The both ends of auxiliary fixing member 402 can pass through screw shell and adjacent protection sleeve pipe 1
Unit is fixedly connected, and auxiliary fixing member 402 can use different specific constructive forms, such as auxiliary fixing member 402 to be equipped with
Longitudinally disposed sliding slot is equipped with the sliding block to cooperate with sliding slot on laser range finder, realizes laser range finder edge with this
Auxiliary fixing member 402 is slidably connected.
Laser range finder uses Switzerland DIMETIX DLS-C distance-measuring device.The setting position of each laser range finder
Cross-sectional direction along protection sleeve pipe 1 mutually staggers, and cooperates each laser range finder with reflecting mirror, realizes that each telescoping tube 3 is surveyed
Measurement at point.
The bottom end of protection sleeve pipe 1 is equipped with the rotary table pipe 6 of inner sealing, and reflective mirror 7 is laid on the bottom face of rotary table pipe 6, circle
The diameter of section of 6 bottom face of platform pipe is greater than the diameter of protection sleeve pipe 1, and reflective mirror 7 is located at can be more on the bottom face of rotary table pipe 6
Add the convenient range measurement for realizing laser range finder, and prevents injecting cement paste from pouring into.
Country rock linear displacement measuring device further includes control system 8, and control system is by conducting cable 5 and data line and swashs
Optar is communicatively coupled, and is controlled laser range finder and acquires data.
The embodiment of the present application also provides a kind of country rock linear displacement measurement methods, comprising the following steps:
Step 1: set measurement drilling in front of tunnel heading: in rock, concrete or soil, drilling out drilling, drillable length according to
The depth bounds for needing to measure determine (being usually no more than 30m).
Step 2: the protection sleeve pipe 11 of bottommost is connect by telescoping tube 3 with 66 one end of rotary table pipe, is equipped in rotary table pipe 6 anti-
Light microscopic 7.Each protection sleeve pipe Unit 1 is attached by telescoping tube 3, and fixing device for installing and laser at telescoping tube 3
Rangefinder, it is ensured that the laser alignment reflecting mirror of laser range finder, 1 element sides of the side assembly protection sleeve pipe protective case that assembly is good
Pipe 1 is inserted into drilling；
Step 3: injecting cement mortar 2 between measurement drilling and the hole of protection sleeve pipe 1, after slurry consolidation, carry out immediately
Initial measurement.
Step 4: in each measurement later, each laser range finder being controlled by control system and carries out ranging.
Step 5: with the continuous explosion of area face forward, the protection sleeve pipe 1 at rear portion can constantly be exposed, by the guarantor of exposing
Protecting pipe 1 is dismantled, the recycling of realization device.
The embodiment of the present application has the advantages that
1, precision is high, repeatedly can measure and analyze using laser range finder, greatly improve precision；
2, installation and operation simple and convenient；
3, can not dynamically be influenced by construction with recycled for multiple times, can change in displacement inside real-time monitoring foundation pit country rock, be
Safe early warning provides data information.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (10)
1. a kind of country rock linear displacement measuring device characterized by comprising
Protection sleeve pipe, to be longitudinally set to along tunnel in the measurement drilling of tunnel tunnel face front, if the protection sleeve pipe includes
Dry protection sleeve pipe unit；
To connect the telescoping tube of the adjacent protection sleeve pipe unit, the both ends of the telescoping tube respectively with the adjacent guarantor
The connection of sheath pipe unit, the intermediate body portions of the telescoping tube are divided into telescopic segment, and the telescopic segment is can be along the protection sleeve pipe
The organ type telescoping tube of longitudinal extension, the telescopic segment by injecting cement paste with country rock to be fixedly connected；
Reflective mirror, to be arranged in the hole bottom of the measurement drilling along the cross-sectional direction of the protection sleeve pipe；
To several laser range finders cooperated with the reflective mirror, each laser range finder is by fixed device and accordingly
The telescopic segment of the telescoping tube be fixedly connected, by measuring the laser range finder with the reflective mirror at a distance from, realize respectively
The measurement of relative displacement between a telescopic segment and the bottom hole.
2. a kind of country rock linear displacement measuring device according to claim 1, which is characterized in that the protection sleeve pipe unit
It is connected through a screw thread with the telescoping tube.
3. a kind of country rock linear displacement measuring device according to claim 1, which is characterized in that the fixed device includes
Along the protection sleeve pipe cross-sectional direction be arranged fixed link, the both ends of the fixed link respectively with the organ type telescoping tube
The two sides of inner wall are fixedly connected, and the fixed link is equipped with the fixing piece to the fixation laser range finder.
4. a kind of country rock linear displacement measuring device according to claim 3, which is characterized in that the fixed device also wraps
Include the auxiliary fixing member longitudinally disposed along the protection sleeve pipe, the both ends of the auxiliary fixing member respectively with the adjacent protection
Casing is fixedly connected, the laser range finder by only can along the longitudinally opposed sliding of the auxiliary fixing member in a manner of with it is described auxiliary
Fixing piece is helped to connect.
5. a kind of country rock linear displacement measuring device according to claim 1, which is characterized in that each laser ranging
Instrument and the telescoping tube correspond.
6. a kind of country rock linear displacement measuring device according to claim 1, which is characterized in that each laser ranging
The setting position of instrument is mutually staggered along the cross-sectional direction of the protection sleeve pipe.
7. a kind of country rock linear displacement measuring device according to claim 1, which is characterized in that the bottom of the protection sleeve pipe
End is equipped with the rotary table pipe of inner sealing, and the reflective mirror is laid on the bottom face of the rotary table pipe.
8. a kind of country rock linear displacement measuring device according to claim 1, which is characterized in that the country rock linear displacement
Measuring device further includes control system, and the control system is carried out by wiredly and/or wirelessly mode and the laser range finder
Communication connection.
9. a kind of country rock linear displacement measurement method, which comprises the following steps:
Step 1: setting measurement drilling in front of tunnel heading；
Step 2: country rock linear displacement measuring device is put into the measurement drilling；
Step 3: passing through each laser after slurry consolidation to slip casting between measurement drilling and the hole of protection sleeve pipe
The distance between rangefinder and the reflecting mirror monitor value measure the surrounding rock displacement value in the drilling.
10. a kind of country rock linear displacement measurement method according to claim 9, which is characterized in that in the step 3, to
Cement mortar is injected between the measurement drilling and the hole of protection sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271039.XA CN110030939B (en) | 2019-04-04 | 2019-04-04 | Device and method for measuring linear displacement of surrounding rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271039.XA CN110030939B (en) | 2019-04-04 | 2019-04-04 | Device and method for measuring linear displacement of surrounding rock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110030939A true CN110030939A (en) | 2019-07-19 |
| CN110030939B CN110030939B (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910271039.XA Active CN110030939B (en) | 2019-04-04 | 2019-04-04 | Device and method for measuring linear displacement of surrounding rock |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242287A (en) * | 2019-07-22 | 2019-09-17 | 四川华芯项目管理有限公司 | A kind of Tunneling by mining method perforation hole size scalability detection device and application method |
| CN111551121A (en) * | 2020-06-25 | 2020-08-18 | 安徽理工大学 | Device and method for monitoring displacement of surrounding rock roof of roadway |
| WO2021017871A1 (en) * | 2019-07-31 | 2021-02-04 | 青岛理工大学 | Micro steel pipe pile body displacement monitoring device and method |
| CN114910004A (en) * | 2022-05-26 | 2022-08-16 | 中国矿业大学 | Telescopic multipoint displacement meter based on laser ranging and application method thereof |
| CN116399247A (en) * | 2023-02-13 | 2023-07-07 | 长江水利委员会长江科学院 | Large-range laser displacement measuring instrument suitable for surrounding rock large deformation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110242287A (en) * | 2019-07-22 | 2019-09-17 | 四川华芯项目管理有限公司 | A kind of Tunneling by mining method perforation hole size scalability detection device and application method |
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| CN116399247A (en) * | 2023-02-13 | 2023-07-07 | 长江水利委员会长江科学院 | Large-range laser displacement measuring instrument suitable for surrounding rock large deformation |
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