CN207894454U - Device that is a kind of while measuring hydraulic pressure, temperature, mining induced stress - Google Patents
Device that is a kind of while measuring hydraulic pressure, temperature, mining induced stress Download PDFInfo
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- CN207894454U CN207894454U CN201820338463.2U CN201820338463U CN207894454U CN 207894454 U CN207894454 U CN 207894454U CN 201820338463 U CN201820338463 U CN 201820338463U CN 207894454 U CN207894454 U CN 207894454U
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- hydraulic pressure
- temperature
- hole wall
- strain transducer
- induced stress
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Abstract
The utility model provides device that is a kind of while measuring hydraulic pressure, temperature, mining induced stress, belongs to rock mass underground water and stress monitoring technical field.The device includes hydraulic pressure sensor (including piezoelectric pressure indicator, temperature sensor) and three-dimensional hole wall strain transducer, hydraulic pressure sensor end is equipped with permeable stone, piezoelectric pressure indicator is installed after permeable stone, permeable stone and piezoelectric pressure indicator are surrounded by fluorubber " o " type sealing ring, the mounting temperature sensor inside the device, hydraulic pressure sensor is mounted on the plastic squeeze of three-dimensional hole wall strain transducer end face beyond the Great Wall, three-dimensional hole wall strain transducer end is equipped with glue storehouse, and there are three strain rosettes for the installation of three-dimensional hole wall strain transducer inside.The utility model can accomplish wireless transmission and in real time monitoring, break away from dependence of the adverse circumstances to signal wire, and real-time is high, stability is strong, maintains at low cost, convenient practicality, can read data information in time, the precautionary measures are carried out, accident is prevented, it is highly practical.
Description
Technical field
The utility model is related to rock mass underground water and stress monitoring technical field, particularly relate to it is a kind of and meanwhile measure hydraulic pressure,
The device of temperature, mining induced stress.
Background technology
Underground water and rock mining stress are the important factor in order for influencing geotechnical engineering safety, carry out water pressure and rock mass
Stress monitoring is to ensure geotechnical engineering especially underground mining indispensable monitoring content safely.
Water pressure gauge type currently on the market is more, is largely type vibration wire hydraulic gage and vapour-pressure type hydraulic gage, vibratory string
Formula hydraulic gage principle is water in ground by the permeable stone mounted in probe distal end, is acted on pressure film, pressure film by
Power generates deflection deformation, causes the string wire deformation on film, causes the change of the vibratory string natural frequency of vibration therewith, measured with frequency
The size for determining frequency variation, by converting up to water pressure, you can measure the pressure value of water lotus.It is former as vapour-pressure type hydraulic gage
Reason, currently used is air pressure balance water pressure gauge, and operation principle is：Water passes through mounted in the permeable of probe distal end in ground
Stone acts on film, and film is upwardly-deformed to be contacted with contact button, and circuit is connected, and light bulb is bright (or being indicated with potentiometer), then
It is passed through compressed air from air inlet, the hydraulic pressure dynamic balance of the pressure and soil on film, light bulb is made to extinguish, pressure gauge instruction at this time
After pressure is multiplied by related calibration coefficient, as water pressure.
In terms of water pressure monitoring, Zhong Jiayu, Zheng Yong come (2010) and exist《Laboratory research and exploration》" water pressure biography is delivered
The repacking of sensor designs ", it repacks miniature soil pressure sensor into water pressure sensor, is used for Sandy Seabed under Waves water
The measurement of pressure is successful, shortcoming be repacking after hydraulic gage accuracy and sensitivity it is not high, can not accomplish reality
When monitor and wireless transmission.Tang Zhaoguang, Wang Yongzhi etc. (2017) exist《China Water Resources ＆ Hydropower Science Research Institute's journal》Deliver " three
Kind of ventage piezometer measures performance comparison pre-test ", the comparative analysis static(al) of tri- kinds of sensors of Druck, Keller and Kulite
With Dynamic response characteristic, the results showed that, three kinds of sensor results in steady-error coefficient are relatively uniform, and have on dynamic response aobvious
It writes lag and therefore amplitude difference could be improved in terms of flowing pressure measurement.
In terms of mining induced stress monitoring, Fu Dongbo, neat celebrating is new to wait (2009) to exist《Coal mining》" the mining induced stress prison delivered
The design of examining system " has developed KMJ30 mine monitoring stress systems, can monitor working face under the conditions of mining influence
The stress variation of front coal and rock.Cui Zhongming (2014) exists《Coal》" the mine mining induced stress prison based on MSP430F149 is delivered
Examining system designs ", devise the mine mine monitoring stress system based on MSP430F149.The system is supervised using pressure sensor
Coal petrography stressor layer is surveyed, can monitor the variation of underground coal terrane stress.But these measurements are difficult to disposably obtain rock mass
Triaxiality.
To sum up, since there are respective limitations for hydraulic gage and pressure sensor, and cannot meet a hole and meanwhile measure
It is required that meet the requirement that in-site measurement is convenient, real-time and wireless, researchs and develops high-precision and water can be monitored in real time simultaneously
The device of the information such as pressure, temperature, mining induced stress is significant.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of while measuring the device of hydraulic pressure, temperature, mining induced stress,
To overcome traditional measurement apparatus measures inaccurate, cannot a hole measure the defect of hydraulic pressure, temperature and mining induced stress simultaneously.The device
Using high-precision piezoelectric pressure indicator, and with temperature sensor and three-dimensional hole wall strain transducer, can supervise simultaneously
Seepage flow hydraulic pressure, temperature and mining induced stress information, and included storage and signal wireless transmitting function are surveyed, using module is automatically stored
It with high-power signal emitter, can be automatically stored and transmitting data in real time, accomplish to monitor in real time.
The device includes hydraulic pressure sensor and three-dimensional hole wall strain transducer and digital collection storage and high-power nothing
The circuit board of line emitting module, wherein hydraulic pressure sensor includes piezoelectric pressure indicator and temperature sensor, hydraulic pressure sensor
Face, hydraulic pressure sensor end are equipped with permeable stone, pacify after permeable stone beyond the Great Wall for plastic squeeze mounted on three-dimensional hole wall strain transducer end
Piezoelectric pressure indicator is filled, temperature sensor is mounted on inside whole device, and three-dimensional hole wall strain transducer end is set
Two stainless steel strips one are equipped with, hydraulic pressure sensor front end is equipped with two stainless steel strips two, and glue storehouse is arranged in two stainless steel strips
Between two, glue storehouse end set plastic squeeze plug, hydraulic pressure sensor kalamein shell, piezoelectric pressure indicator and temperature sensing
Device is separately mounted in the piezoelectric pressure indicator card slot and temperature sensor card slot on plastic mould, piezoelectric pressure sensing
The reserved line of device conducting wire, temperature sensor lead and three-dimensional hole wall strain transducer conducting wire among three-dimensional hole wall strain transducer
It is pierced by hole, permeable seat, which is arranged on whole device end, permeable seat, is arranged permeable stone card slot, and plastic squeeze is equipped with plastic squeeze hole beyond the Great Wall.
Wherein, permeable stone and piezoelectric pressure indicator are surrounded by fluorubber " o " type sealing ring.
The device when mounted, piles epoxide-resin glue in glue storehouse.
There are three strain rosettes for installation inside three-dimensional hole wall strain transducer.
Permeable stone is mounted in the permeable stone card slot above permeable seat.
Piezoelectric pressure indicator conducting wire, temperature sensor lead and three-dimensional hole wall strain transducer conducting wire are connected to the dress
It sets on external high-power wireless emitter, wireless launcher is mounted in waterproof mounting box.
Reserved string holes both ends seal with elastometic washer.
Stainless steel strip one and stainless steel strip two withstand on petrosal foramen end when installing.
High-power wireless transmitting module includes that GPRS communications component, cdma communication transmission assembly, 3G or 4G communications pass
Defeated component, bluetooth module, the one of which of wifi module or arbitrary combination.It is suitble to complicated geological environment, it can be smooth by signal
Launch, and at interval of certain time, just emit a data, ensure to measure seepage flow hydraulic pressure, temperature, mining induced stress
Variation accurately obtains hydraulic pressure, temperature, the data of mining induced stress to hold its variation range and changing rule, meanwhile, water
Pressure, temperature, the dynamic change of mining induced stress, are transmitted to ground level control room in real time.Monitoring hydraulic pressure, temperature, mining induced stress in real time
Variation reduces engineering because of accidents such as gushing water, Instability of Rock Body to greatest extent to predict the generation of the accidents such as gushing water, Instability of Rock Body
Caused by economic loss and casualties.
The sheathing material of whole device uses high-strength aluminum alloy or stainless steel, surface to be heat-treated, prevent from corroding,
Since probe internal structure is simple, parts are few, and element size is small, so shell sizes, can accomplish to minimize, facilitate peace
It fills and fixed, is suitble to installing and using for various particular surroundings.
The measurement of three-dimensional hole wall strain transducer will be bonded in foot of hole according to design requirement by epoxide-resin glue, and three
Tie up the gap epoxide-resin glue dense packing effect between hole wall strain transducer and drilling, it is ensured that three-dimensional hole wall strain transducer energy
It is enough secured firmly in petrosal foramen, rock mass deformation caused by accurate perception is adopted, top plastic squeeze is equipped with stainless steel strip beyond the Great Wall, tightly
Foot of hole is withstood, when mounted, hydraulic pressure sensor end gauze wrapped sand makees filter layer, meanwhile, outside hydraulic pressure sensor
Shell front end is there are two stainless steel strips, propulsion device when for installing, and device is entirely promoted into hole with instrument together, to brill
When the bottom of hole, crust of the device front end there are two stainless steel strips withstand nose end at first, with continuing to promote, plastic squeeze enters storage
Jiao Cang slowly squeezes out epoxide-resin glue, and epoxide-resin glue is filled in the gap between instrument and hole wall, is fixedly secured entire instrument
Device, until the stainless steel strip of plastic squeeze beyond the Great Wall is withstood on nose end, sealing exit orifice, installation is complete for instrument.
Package unit power supply can access municipal electric system power supply, solar cell for supplying power, storage battery power supply wherein one
Kind.Convenient, safety, is suitable for various working environments.
The above-mentioned technical proposal of the utility model has the beneficial effect that：
First, the utility model uses the method that each component is installed separately, hydraulic pressure sensor (to be sensed comprising piezoelectric pressure
Device and temperature sensor) and three-dimensional hole wall strain transducer, it is mounted in hole, acquires information, and memory module and nothing are installed
The circuit board and power supply facilities of line transmitting module are then mounted on outside hole, greatly reduce the requirement to aperture, probe can be accomplished
Miniaturization, the interior each parts of probe are connected using plug, facilitate the maintenance, repair of equipment, increase making for complete equipment significantly
Use the service life.Again, the utility model can obtain the much informations such as water pressure, temperature, mining induced stress simultaneously, can accomplish primary
Installation, while much information is measured, convenience and high-efficiency.Finally, the utility model can accomplish wireless transmission and in real time monitoring, break away from
Dependences of the adverse circumstances to signal wire, real-time is high, and stability is strong, and maintains at low cost, convenient practicality, at the same again can and
When read data information, carry out the precautionary measures, prevent accident, practicability stronger.
Description of the drawings
Hydraulic pressure, temperature, the apparatus structure schematic diagram of mining induced stress are measured while Fig. 1 is the utility model.
Wherein：1- stainless steel strips one；2- permeable stones；3- metal shells；4- plastic moulds；The permeable seats of 5-；6- fluorubber " o "
Type sealing ring；7- permeable stone card slots；8- piezoelectric pressure indicator card slots；9- piezoelectric pressure indicators；10- temperature sensing
Device；11- plastic squeeze plugs；12- temperature sensor leads；13- piezoelectric pressure indicator conducting wires；14- glue storehouses；15- strain rosettes；
16- reserves string holes；17- stainless steel strips two；18- temperature sensor card slots；19- three-dimensional hole wall strain transducer conducting wires；20- plastic squeezes
Hole.
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 device that is a kind of while measuring hydraulic pressure, temperature, mining induced stress.
As shown in Figure 1, in the device, hydraulic pressure sensor is mounted on the plastic squeeze plug 11 of three-dimensional hole wall strain transducer end
Face, hydraulic pressure sensor end are equipped with permeable stone 2, piezoelectric pressure indicator 9 are installed after permeable stone 2, and temperature sensor 10 is installed
Inside whole device, three-dimensional hole wall strain transducer end is provided with stainless steel strip 1 and stainless steel strip 2 17, stores up glue
Storehouse 14 is arranged between two stainless steel strips 2 17,14 end set plastic squeeze plug 11 of glue storehouse, outside hydraulic pressure sensor kalamein
Shell 3, piezoelectric pressure indicator 9 and temperature sensor 10 are separately mounted to the piezoelectric pressure indicator card on plastic mould 4
In slot 8 and temperature sensor card slot 18, piezoelectric pressure indicator conducting wire 13, temperature sensor lead 12 and three-dimensional hole wall strain
Sensor conductor 19 is pierced by the reserved string holes 16 among three-dimensional hole wall strain transducer, and permeable seat 5 is arranged in whole device
End, setting permeable stone card slot 7 on permeable seat 5, plastic squeeze plug 11 is equipped with plastic squeeze hole 20.
Permeable stone 2 and piezoelectric pressure indicator 9 are surrounded by fluorubber " o " type sealing ring 6.
The device when mounted, epoxide-resin glue is piled in glue storehouse 14.
There are three strain rosettes 15 for installation inside three-dimensional hole wall strain transducer.
Permeable stone 2 is mounted in the permeable stone card slot 7 above permeable seat 5.
Piezoelectric pressure indicator conducting wire 13, temperature sensor lead 12 and three-dimensional hole wall strain transducer conducting wire 19 connect
On the wireless launcher outside the device, wireless launcher is mounted in waterproof mounting box.
In actual use, stainless steel strip 1 is mounted on three-dimensional hole wall strain transducer case nose, hydraulic pressure sensor peace
In cavity between stainless steel strip 1, the permeable stone 2 of hydraulic pressure sensor is mounted on the permeable stone card slot 7 above permeable seat 5
In, permeable stone surrounding lays fluorubber " o " type sealing ring 6, and piezoelectric pressure indicator 9 and temperature sensor 10 are installed respectively
In piezoelectric pressure indicator card slot 8 and temperature sensor card slot 18 on plastic mould 4, piezoelectric pressure indicator conducting wire
13 and temperature sensor lead 12 be pierced by the reserved string holes 16 among three-dimensional hole wall strain transducer, guide to outside hole, entirely
Hydraulic pressure sensor is made in 11 front end of plastic squeeze plug, and 3 front end of hydraulic pressure sensor metal shell is equipped with two stainless steel strips 2 17, installation
When stainless steel strip withstand at first drilling bottom end, as instrument is promoted into hole, hydraulic gage is pushed into three-dimensional apertures by stainless steel strip 2 17
In the glue storehouse 14 of wall strain transducer, the glue storehouse 14 of three-dimensional hole wall strain transducer is full of epoxide-resin glue, and hydraulic gage will
Epoxide-resin glue is squeezed out from the glue storehouse 14 of three-dimensional hole wall strain transducer by plastic squeeze hole 20, full of between instrument and hole wall
Gap, be fixedly secured entire instrument, the strain rosette 15 in three-dimensional hole wall strain transducer measures the mining induced stress numerical value of rock mass,
The memory module outside hole is stored it in, and signal is carried out wireless transmission by the wireless transmitter module outside through hole.
The device concrete operating principle (operating procedure) is:
1, piezoelectric pressure indicator is mounted on above plastic mould as shown in Figure 1；
2, temperature sensor is mounted on above plastic mould；
3, plastic mould is inserted into hydraulic pressure sensor shell, fluorubber " o " type sealing ring and permeable stone is installed in end,
Ensure that water cannot enter inside hydraulic pressure sensor；
4, by the signal wire of hydraulic pressure sensor and three-dimensional hole wall strain transducer, power cord from three-dimensional hole wall strain transducer
The reserved string holes in centre is pierced by, meanwhile, waterproof measure is carried out at sealing string holes both ends；
5, hydraulic pressure sensor is fixed in the glue storehouse among the stainless steel strip of three-dimensional hole wall strain transducer end, with
Three-dimensional hole wall strain transducer is installed together；
When 6, using power supply is installed outside hole, powers on line；
7, circuit board of the installation with storage device and high-power wireless transmitting device outside hole, connection hydraulic pressure sensor,
Three-dimensional hole wall strain transducer signal wire, it is ensured that the real-time radio of data transmits, meanwhile, it can be bad to avoid wireless transmission signal
When, the artificial data obtained measured by hydraulic pressure sensor and three-dimensional hole wall strain transducer.
The utility model devises a kind of device that can measure water pressure, mining induced stress and temperature in real time.Hydraulic pressure senses
Device uses piezoelectric pressure indicator, can be sensitiveer more accurate, using the permeable stone of high water-permeability, has preferable filtering to make
With, meanwhile, and can ensure that water can penetrate into permeable stone in time, hydraulic pressure is acted on piezoelectric pressure indicator, in hydraulic gage
Portion designs plastic mould, and all parts are inserted on plastic mould, facilitates repair and changes, in hydraulic pressure sensor trailing wire hole
Carry out seal operation, it is ensured that do not have water entrance, while using high-sensitivity temperature sensor, measure water pressure sensor institute
The temperature of the environment at place, and water pressure and temperature and mining induced stress information are sent out in time, the storage being stored in outside hole
On device, and by high-power wireless emitter, data transmission is gone out in real time, accomplishes real-time dynamic monitoring.
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 (8)
1. device that is a kind of while measuring hydraulic pressure, temperature, mining induced stress, it is characterised in that：Including hydraulic pressure sensor and three-dimensional apertures
Wall strain transducer, hydraulic pressure sensor include piezoelectric pressure indicator and temperature sensor, and hydraulic pressure sensor is mounted on three-dimensional
Above, hydraulic pressure sensor end is equipped with permeable stone (2) to the plastic squeeze plug (11) of hole wall strain transducer end, and permeable stone (2) is pacified afterwards
Piezoelectric pressure indicator (9) is filled, temperature sensor (10) is mounted on inside whole device, three-dimensional hole wall strain transducer end
Equipped with two stainless steel strips one (1) are provided with, hydraulic pressure sensor front end is equipped with two stainless steel strips two (17), and glue storehouse (14) is set
It sets between two stainless steel strips two (17), glue storehouse (14) end set plastic squeeze plug (11), outside hydraulic pressure sensor kalamein
Shell (3), piezoelectric pressure indicator (9) and temperature sensor (10) are separately mounted to the piezoelectric pressure on plastic mould (4)
In sensor card slot (8) and temperature sensor card slot (18), piezoelectric pressure indicator conducting wire (13), temperature sensor lead
(12) and in reserved string holes (16) of the three-dimensional hole wall strain transducer conducting wire (19) among three-dimensional hole wall strain transducer it is pierced by,
Permeable seat (5), which is arranged on whole device end, permeable seat (5), is arranged permeable stone card slot (7), and plastic squeeze plug (11) is equipped with plastic squeeze
Hole (20).
2. device that is according to claim 1 while measuring hydraulic pressure, temperature, mining induced stress, it is characterised in that：It is described permeable
Stone (2) and piezoelectric pressure indicator (9) are surrounded by fluorubber " o " type sealing ring (6).
3. device that is according to claim 1 while measuring hydraulic pressure, temperature, mining induced stress, it is characterised in that：The device exists
When installation, epoxide-resin glue is piled in glue storehouse (14).
4. device that is according to claim 1 while measuring hydraulic pressure, temperature, mining induced stress, it is characterised in that：The three-dimensional
There are three strain rosettes (15) for installation inside hole wall strain transducer.
5. device that is according to claim 1 while measuring hydraulic pressure, temperature, mining induced stress, it is characterised in that：It is described permeable
Stone (2) is mounted in the permeable stone card slot (7) of permeable seat (5) above.
6. device that is according to claim 1 while measuring hydraulic pressure, temperature, mining induced stress, it is characterised in that：The piezoelectricity
Formula pressure sensor conducting wire (13), temperature sensor lead (12) and three-dimensional hole wall strain transducer conducting wire (19) are connected to the dress
It sets on external wireless launcher, wireless launcher is mounted in waterproof mounting box.
7. device that is according to claim 1 while measuring hydraulic pressure, temperature, mining induced stress, it is characterised in that：It is described reserved
String holes (16) both ends seal with elastometic washer.
8. device that is according to claim 1 while measuring hydraulic pressure, temperature, mining induced stress, it is characterised in that：It is described stainless
Steel bar one (1) and stainless steel strip two (17) withstand on petrosal foramen end when installing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338463.2U CN207894454U (en) | 2018-03-13 | 2018-03-13 | Device that is a kind of while measuring hydraulic pressure, temperature, mining induced stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338463.2U CN207894454U (en) | 2018-03-13 | 2018-03-13 | Device that is a kind of while measuring hydraulic pressure, temperature, mining induced stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207894454U true CN207894454U (en) | 2018-09-21 |
Family
ID=63541638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820338463.2U Withdrawn - After Issue CN207894454U (en) | 2018-03-13 | 2018-03-13 | Device that is a kind of while measuring hydraulic pressure, temperature, mining induced stress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207894454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168621A (en) * | 2018-03-13 | 2018-06-15 | 北京科技大学 | Device that is a kind of while measuring hydraulic pressure, temperature, mining induced stress |
| CN115420251A (en) * | 2022-11-02 | 2022-12-02 | 煤炭科学研究总院有限公司 | Twelve-component small-aperture hole bottom strain gauge |
-
2018
- 2018-03-13 CN CN201820338463.2U patent/CN207894454U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168621A (en) * | 2018-03-13 | 2018-06-15 | 北京科技大学 | Device that is a kind of while measuring hydraulic pressure, temperature, mining induced stress |
| CN115420251A (en) * | 2022-11-02 | 2022-12-02 | 煤炭科学研究总院有限公司 | Twelve-component small-aperture hole bottom strain gauge |
| CN115420251B (en) * | 2022-11-02 | 2023-01-31 | 煤炭科学研究总院有限公司 | Twelve-component small-aperture hole bottom strain gauge |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180921 Effective date of abandoning: 20221103 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180921 Effective date of abandoning: 20221103 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |