CN207609447U - Rock mass energy flow monitor - Google Patents
Rock mass energy flow monitor Download PDFInfo
- Publication number
- CN207609447U CN207609447U CN201721768231.2U CN201721768231U CN207609447U CN 207609447 U CN207609447 U CN 207609447U CN 201721768231 U CN201721768231 U CN 201721768231U CN 207609447 U CN207609447 U CN 207609447U
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- China
- Prior art keywords
- ultrasonic wave
- rock mass
- wave transmitting
- probe
- receiving transducer
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Abstract
The utility model provides rock mass energy flow monitor, belongs to strain of rock mass monitoring technical field.The monitor includes guide head, metallic rod, ultrasonic wave transmitting probe, latch plate, ultrasonic wave transmitting probe position-limiting drum, spring, plastic hole, sealing rubber ring, epoxy resin cylinder, type of dynamic strain sensor, ultrasonic wave receiving transducer, probe mounting bracket, extraction-type ultrasonic wave receiving transducer position-limiting drum and dynamic collecting instrument, guide head is located at monitor front end, guide head is welded by metallic rod and ultrasonic wave transmitting probe position-limiting drum, ultrasonic wave transmitting probe is connect by latch plate with probe mounting bracket, ultrasonic wave transmitting probe limits tube rear end and is welded by spring and temperature self-compensating strain transducer skeleton, mounting bracket of popping one's head in tail portion connects dynamic collecting instrument.The utility model is designed by rational modular construction, while ensureing rock mass velocity measurement accuracy, substantially reduces the overall dimensions of equipment.
Description
Technical field
The utility model is related to strain of rock mass monitoring technical fields, particularly relate to a kind of rock mass energy flow monitor.
Background technology
In underground engineering, rock mass energy variation measuring, monitoring, to the excavation of underground engineering, design, analysis of stability
Analysis influences notable.
Currently, can disposably obtain the strain of underground three-dimensional, principal stress method, only hollow inclusion strain gauge method.But work
Process is irregular, mostly uses long conducting wire greatly and draws measuring signal, signal conductor resistance in transmission process seriously affects survey
Accuracy of measurement.The peaks Cai Mei teaching inventive double earth wire circuit improvements hollow inclusion method measurement accuracy；Australian environmental system and clothes
Digitlization hollow inclusion strain gauge in situ has been invented by business company, and eliminating long conductor resistance influences, and analog signal is become digital letter
After number data are drawn using 4 core conducting wires.Whether the improvement in double earth wire circuit or digitized realization in situ, it is also necessary to survey
Drilling machine is passed through to export live signal using conducting wire in amount.It is cumbersome, and measure traverse line leads to the public drilling machine of cooling water is measured
Road interacts, and the accident that conducting wire is broken when drilling by card can be caused to occur.On June 22nd, 2016, application was special for this seminar
Profit is entitled：Digitlization type three-dimensional hole wall strain gauge in situ based on complete technique for temperature compensation, application number：
201610456789.0 effectively improving geostress survey precision.In geostress survey, static strain is carried out to rock mass deformation and is adopted
Collection, and in rock vibration energy monitoring, it needs to obtain Three-Dimensional Dynamic strain data.Therefore it in rock mass energy monitoring, needs to tie
Close geostress survey analysis method and dynamic strain original position digital collection technology.Due to being monitored using the indirect method of measurement,
It needs to obtain rock mass modulus parameter synchronous with strain in measurement.The Test in Situ dynamic modulus of elasticity is tested the speed skill using ultrasonic wave
Art, but the prior art is both needed to use couplant coupling measurement both at home and abroad, cannot achieve the long term monitoring at scene.
The utility model is intended to obtain the effective unificationization and rock mass energy variation of rock mass important physical parameter acquiring means
Short-term, long term monitoring.
Rock material is different from artificial material, in addition to other than different material characteristics, going back related with its environmental effect.Rock mass is answered
Force environment, with the increase of buried depth, by being leading with gravity, it is leading, stress shape to arrive with horizontal stress even tectonic stress
State is complicated.Hand excavation's activity, has upset initial rock stress field, and then increase the complication of rock mass environmental awareness.Therefore, in situ
Measuring rock mass energy variation is particularly important, to the excavation of underground engineering, design, stability analysis, great reference value.
But currently, there has been no with the way of contact of ultrasonic probe and working face dry-cured meat, and can be combined in small size working space
Dynamic strain accurately measures, the equipment for carrying out rock mass energy variation monitoring.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of rock mass energy flow monitors.
The rock mass energy flow monitor includes agent structure, high-accuracy self-compensation strain transducer, complete temperature-compensating
Measuring circuit and digitlization dynamic acquisition integrated circuit board in situ；High-accuracy self-compensation strain transducer, complete temperature-compensating are surveyed
Circuit is measured to be arranged in temperature self-compensating strain transducer agent structure；Digitlization dynamic acquisition integrated circuit board setting in situ exists
After the probe mounting bracket of monitor.
The monitor specifically includes guide head, metallic rod, ultrasonic wave transmitting probe, latch plate one, latch plate two, ultrasonic wave
Transmitting probe position-limiting drum, spring, plastic hole, sealing rubber ring, epoxy resin cylinder, type of dynamic strain sensor, ultrasonic wave receiving transducer,
Probe mounting bracket one, probe mounting bracket two, extraction-type ultrasonic wave receiving transducer position-limiting drum and dynamic collecting instrument, guide head position
In the monitor front end, guide head is welded by metallic rod and ultrasonic wave transmitting probe position-limiting drum, and ultrasonic wave transmitting probe passes through
Latch plate one is connect with probe mounting bracket one, and ultrasonic wave transmitting probe limit tube rear end passes through spring and temperature self-compensating strain
Sensor framework welds, one circle plastic hole of temperature self-compensating strain transducer skeleton front end setting, temperature self-compensating strain sensing
Device skeleton front-end and back-end are each provided with sealing rubber ring, outsourcing epoxy resin cylinder in the middle part of temperature self-compensating strain transducer skeleton,
Type of dynamic strain sensor is posted outside epoxy resin cylinder；Temperature self-compensating strain transducer skeleton rear end and probe mounting bracket two
Welding, ultrasonic wave receiving transducer are welded by latch plate two and probe mounting bracket two, and pumping is provided with outside ultrasonic wave receiving transducer
Modus ponens ultrasonic wave receiving transducer position-limiting drum, two tail portion of probe mounting bracket connect dynamic collecting instrument, and dynamic collecting instrument includes in situ
Digitize dynamic acquisition integrated circuit board and accumulator.
Wherein, ultrasonic wave transmitting probe is limited to one reduced overall of latch plate in ultrasonic wave transmitting probe position-limiting drum.
Ultrasonic wave receiving transducer is limited to two reduced overall of latch plate in extraction-type ultrasonic wave receiving transducer position-limiting drum.
The way of contact of ultrasonic wave transmitting probe, ultrasonic wave receiving transducer and working face is all dry-cured meat, which exists
In same axial direction, it is disposed with two groups of ultrasonic wave transmitting probes and ultrasonic wave receiving transducer.
The monitor reserves wifi, bluetooth, very low frequency and communicates wireless transmission interface thoroughly, and data acquisition and charging use nothing
Line or wired mode, reserve there are many be wirelessly connected pattern and wireless charging interface, it can be achieved that by measuring point to control room data
Real-time Transmission.
Monitor uses the real time temperature self compensation technology of dynamic strain, using strain-rock as the equalized temperature of one
System carries out manufacture calibration, is monitored using temperature self-compensating strain transducer and acquires plate circuit temperature calibration as a result, carrying out hardware-
The two temperature amendment of algorithm is corrected measurement data by calibrating parameters, is eliminated in long term monitoring in real time in dynamic strain monitoring
Temperature influence.
Carrying out rock mass energy monitoring using the rock mass energy flow monitor includes：
When the rock mass energy flow monitor works, drill on tunnel, tunnel or side slope palisades, the rock mass energy stream
Dynamic monitor is mounted in drilling.By promoting, since ultrasonic wave transmitting probe limits tube rear end spring-compressed so that guide head
Integrally backward indent with ultrasonic wave transmitting probe position-limiting drum, ultrasonic wave transmitting probe is before ultrasonic wave transmitting probe position-limiting drum at this time
Palisades are close in end pop-up, while by promoting injecting glue, keeping rock mass energy flow monitor type of dynamic strain sensor and hole wall close
It is cementing, extraction-type ultrasonic wave receiving transducer position-limiting drum is then taken out, palisades are close in ultrasonic wave receiving transducer pop-up at this time.It monitored
According to relationship between velocity of wave and mechanics parameter in journey, dynamic modulus of elasticity size can be extrapolated, and then combines dynamic strain data, move
State Poisson's ratio extrapolates rock mass energy variation according to strain energy theory.
The above-mentioned technical proposal of the utility model has the beneficial effect that：
The utility model is not necessarily to power supply in the standby state, eliminates the influence of transient current；Using ultrasonic wave transmitting probe,
Ultrasonic wave receiving transducer and the way of contact of drilling palisades dry-cured meat measure rock mass velocity, and measurement is effectively reduced from measurement method
Data error provides effective foundation for the acquisition of rock mass energy variation.In measuring rock mass velocity, conventional ultrasonic wave tests the speed
Autonomous device of the device as one, overall dimensions are big, can not be suitble to the smaller working space that drills.The utility model is by closing
The modular construction of reason designs, and ultrasonic wave transmitting probe, ultrasonic wave receiving transducer are able to be separately mounted to temperature self-compensating strain biography
The forward and backward side of sensor skeleton substantially reduces the overall dimensions of equipment while ensureing rock mass velocity measurement accuracy.To make
Rock mass velocity and the effective integrated, miniaturization of dynamic strain measurement equipment are obtained, by short-term, the long term monitoring work of rock mass energy variation
Make, realizes the working space in small size.Meanwhile the rock mass energy flow monitor shares two groups of ultrasonic wave transmitting probes, surpasses
Acoustic receiver probe apparatus, and then increase the reliability of rock mass velocity measurement data.
Description of the drawings
Fig. 1 is the structural schematic diagram under the non-working condition of rock mass energy flow monitor of the utility model；
Fig. 2 is the structural schematic diagram under the rock mass energy flow monitor working condition of the utility model；
Fig. 3 is the type of dynamic strain sensor mounting arrangements schematic diagram of the utility model, wherein (a) illustrates for placement model
Figure (b) is position schematic diagram.
Wherein：1- guide heads；2- metallic rods；3- ultrasonic wave transmitting probes；4- latch plates one；5- ultrasonic wave transmitting probes limit
Position cylinder；6- springs；The plastic holes 7-；8- sealing rubber rings；9- epoxy resin cylinders；10- type of dynamic strain sensor；11- ultrasonic waves receive
Probe；12- probe mounting brackets one；13- extraction-type ultrasonic wave receiving transducer position-limiting drums；14- dynamic collecting instruments；15- latch plates
Two；16- probe mounting brackets two.
Specific implementation mode
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
The utility model provides a kind of rock mass energy flow monitor.
As shown in Figure 1 and Figure 2, which is guide head 1, and 1 rear end of guide head passes through metallic rod
2 weld with ultrasonic wave transmitting probe position-limiting drum 5, and ultrasonic wave transmitting probe 3 is connected by latch plate 1 and probe mounting bracket 1
It connects.Ultrasonic wave transmitting probe 3 is limited to one 4 reduced overall of latch plate in ultrasonic wave transmitting probe position-limiting drum 5.Ultrasonic wave emits
Probe 5 rear end of position-limiting drum passes through spring 6 and cylindrical temperature self-compensating strain transducer skeleton welds.Temperature self-compensating strain passes
One circle plastic hole 7 of sensor skeleton front end setting, and front and back ends are each provided with sealing rubber ring 8, temperature self-compensating strain transducer bone
Outsourcing epoxy resin cylinder 9 in the middle part of frame posts type of dynamic strain sensor 10 outside epoxy resin cylinder 9.Temperature self-compensating strain senses
Device skeleton rear end is welded with probe mounting bracket 2 16, and ultrasonic wave receiving transducer 11 passes through latch plate 2 15 and probe mounting bracket
2 16 connections.It is provided with extraction-type ultrasonic wave receiving transducer position-limiting drum 13, ultrasonic wave receiving transducer outside ultrasonic wave receiving transducer 11
11 are limited to 2 15 reduced overall of latch plate in extraction-type ultrasonic wave receiving transducer position-limiting drum 13.Probe 2 16 tail of mounting bracket
Portion connects dynamic collecting instrument 14.
As shown in figure 3, type of dynamic strain sensor 10 is high-accuracy self-compensation strain transducer, high-accuracy self-compensation strain
On 9 wall of epoxy resin cylinder that circumferentially spaced-apart 120 ° of sensor is arranged in 1.5mm thickness.
When rock mass energy monitoring, high-accuracy self-compensation strain transducer, temperature calibration goes out in rock mass energy flow monitor
It tests and completes when factory.Dynamic strain and the rock mass velocity variation of different moments are measured, rock mass can be obtained in cooperation relative theory analysis
Energy variation situation, rock mass energy flow monitor can carry out rock mass energy monitoring under non-releasing state, and reading mode is optional
It selects manually to measure and transmits both of which with automatic collection, the specific steps are：
1. the aperture of a diameter of 42mm of drilling, drilling depth reach monitoring location；
2. discharging ultrasonic wave transmitting probe, ultrasonic wave receiving transducer, rock mass energy flow monitor and palisades are bonded, and
Access power supply (according to manually acquisition mode, being then not required to access power supply)；
3. acquisition interval is arranged, the time started is acquired.(if artificial acquisition, being then not necessarily to this step)；
4. according to the rock mass velocity data of in-site measurement, the dynamic modulus of elasticity of rock mass is first extrapolated, and then combine dynamic
Strain data calculates to obtain real-time rock mass energy variation according to strain energy formulation.
Ultrasonic wave transmitting probe, ultrasonic wave receiving transducer are not required to using dry-cured meat contact probe head before measuring rock mass velocity
Couplant is added between rock mass and probe, reduces measurement error, significant effect from measurement method, while reducing job step
Suddenly, the working time is saved in simple operation.Ultrasonic wave transmitting probe, ultrasonic wave receiving transducer are arranged in temperature self-compensation and answer
Become the forward and backward side of sensor framework.Homonymy is popped one's head in, and two are arranged symmetrically in the vertically plane of probe mounting bracket axis, so
The rock mass energy flow monitor shares two groups of ultrasonic wave transmitting probes, ultrasonic wave receiving transducer device, and then increases rock mass wave
The reliability of fast test data.Digitlization dynamic acquisition integrated circuit board in situ, using digital circuit integrated technology in equipment cavity
The digitlization conversion for completing signal in vivo, eliminates the measurement error of long conducting wire in other measurement methods, while can realize acquisition number
According to storage, transmission.Digitlization dynamic acquisition integrated circuit board in situ provides artificial power-off continuous and adopts and automatically continuously acquire two kinds
Acquisition mode, four kinds of continuous work, timing working, micro- stand-by operation and stand-by operation operating modes can once mounting realization brills
Short-term, the long term monitoring of hole hole wall three dimensional strain and rock mass velocity.
During concrete application, detailed process is as follows：
1. the aperture of a diameter of 42mm of drilling, drilling depth reach monitoring location；
2. extemporaneous preparation cures colloid, and pours into the sky of the temperature self-compensating strain transducer of rock mass energy flow monitor
In chamber.It is installed with profession installation equipment, control installation speed, propulsive force size, rock mass energy flow monitor are in hole
Orientation so that ultrasonic wave transmitting probe pop up, control colloid squeeze out advance distance.Finally, extraction-type ultrasonic wave is taken out to connect
Receive probe position-limiting drum so that ultrasonic wave receiving transducer pops up.After installation, it is arranged between acquisition stand-by time and acquisition with handheld terminal
Every.Work light lights in peep hole, indicates that rock mass energy flow monitor is working properly；
3. after installation, colloid solidification 24 hours (24 hours under the conditions of 25 °, if less than 10 ° setting times of temperature need it is 48 small
When)；
4. rock mass energy flow monitor plant-grid connection field circuit is ensured long-term power supply, after power failure when battery-operated
Between be more than 1 week, according to manually acquisition mode, then be not required to access power supply；
5. acquisition interval is arranged, the time started is acquired.It is using bluetooth or wired mode that gathered data access aperture is whole
End, and pass through intelligent acess underground looped network (if artificial acquisition, being then not necessarily to this step)；
6. according to the rock mass velocity value monitored in real time, according to relationship between velocity of wave and mechanics parameter, dynamic elasticity is extrapolated
Modulus, and then dynamic strain data, dynamic Poisson's ratio are combined, extrapolate real-time rock mass energy quantitative change according to strain energy correlation theory
Change.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, under the premise of not departing from principle described in the utility model, several improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (5)
1. a kind of rock mass energy flow monitor, it is characterised in that：It is visited including guide head (1), metallic rod (2), ultrasonic wave transmitting
Head (3), latch plate one (4), latch plate two (15), ultrasonic wave transmitting probe position-limiting drum (5), spring (6), plastic hole (7), sealing
Cushion rubber (8), epoxy resin cylinder (9), type of dynamic strain sensor (10), ultrasonic wave receiving transducer (11), probe mounting bracket one
(12), probe mounting bracket two (16), extraction-type ultrasonic wave receiving transducer position-limiting drum (13) and dynamic collecting instrument (14), guide head
(1) it is located at the monitor front end, guide head (1) is welded by metallic rod (2) and ultrasonic wave transmitting probe position-limiting drum (5), ultrasound
Wave transmitting probe (3) is connect by latch plate one (4) with probe mounting bracket one (12), ultrasonic wave transmitting probe position-limiting drum (5)
Rear end is welded by spring (6) and temperature self-compensating strain transducer skeleton, and temperature self-compensating strain transducer skeleton front end is set
A circle plastic hole (7) is set, temperature self-compensating strain transducer skeleton front-end and back-end are each provided with sealing rubber ring (8), and temperature is certainly
Outsourcing epoxy resin cylinder (9) in the middle part of strain transducer skeleton is compensated, type of dynamic strain sensor is posted outside epoxy resin cylinder (9)
(10)；Temperature self-compensating strain transducer skeleton rear end is welded with probe mounting bracket two (16), ultrasonic wave receiving transducer (11)
It is welded by latch plate two (15) and probe mounting bracket two (16), extraction-type ultrasound is provided with outside ultrasonic wave receiving transducer (11)
Wave receiving transducer position-limiting drum (13), probe mounting bracket two (16) tail portion connection dynamic collecting instrument (14).
2. rock mass energy flow monitor according to claim 1, it is characterised in that：The ultrasonic wave transmitting probe (3)
It is limited in ultrasonic wave transmitting probe position-limiting drum (5) with latch plate one (4) reduced overall.
3. rock mass energy flow monitor according to claim 1, it is characterised in that：The ultrasonic wave receiving transducer (11)
It is limited in extraction-type ultrasonic wave receiving transducer position-limiting drum (13) with latch plate two (15) reduced overall.
4. rock mass energy flow monitor according to claim 1, it is characterised in that：The ultrasonic wave transmitting probe (3),
Ultrasonic wave receiving transducer (11) and the way of contact of working face are all dry-cured meat, which is disposed with two in same axial direction
Group ultrasonic wave transmitting probe (3) and ultrasonic wave receiving transducer (11).
5. rock mass energy flow monitor according to claim 1, it is characterised in that：The monitor reserve wifi, bluetooth,
Very low frequency communicates wireless transmission interface thoroughly, and data acquisition and charging are using wirelessly or non-wirelessly mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721768231.2U CN207609447U (en) | 2017-12-18 | 2017-12-18 | Rock mass energy flow monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721768231.2U CN207609447U (en) | 2017-12-18 | 2017-12-18 | Rock mass energy flow monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207609447U true CN207609447U (en) | 2018-07-13 |
Family
ID=62798898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721768231.2U Expired - Fee Related CN207609447U (en) | 2017-12-18 | 2017-12-18 | Rock mass energy flow monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207609447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989652A (en) * | 2017-12-18 | 2018-05-04 | 北京科技大学 | Rock mass energy flow monitor |
-
2017
- 2017-12-18 CN CN201721768231.2U patent/CN207609447U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989652A (en) * | 2017-12-18 | 2018-05-04 | 北京科技大学 | Rock mass energy flow monitor |
| CN107989652B (en) * | 2017-12-18 | 2024-02-23 | 北京科技大学 | Rock energy flow monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 Termination date: 20201218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |