CN202073560U - Pressure stress monitoring pressure cushion and monitoring device for flexible mine - Google Patents
Pressure stress monitoring pressure cushion and monitoring device for flexible mine Download PDFInfo
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- CN202073560U CN202073560U CN2011200367417U CN201120036741U CN202073560U CN 202073560 U CN202073560 U CN 202073560U CN 2011200367417 U CN2011200367417 U CN 2011200367417U CN 201120036741 U CN201120036741 U CN 201120036741U CN 202073560 U CN202073560 U CN 202073560U
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- compressive stress
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Abstract
The utility model discloses a pressure stress monitoring pressure cushion and a monitoring device for a flexible mine. Mainly the flexible pressure cushion is used for replacing the traditional rigid pressure cushion and is tightly contacted with the hole wall after being pressurized, and the pressure stress can be captured as along as pressure applies on a rock body slightly when the pressure stress of a coal rock mass is monitored, so that the problems that the reading is inaccurate and can be lost, and the pressure cushion is not sensible can be solved, so that the drilling pressure stress can be monitored more accurately and timely, and more accurate pressure parameters are provided for scientific research as well as safe production and management.
Description
Technical field
The utility model belongs to the monitoring device in mining and rock mass engineering project field.
Background technology
Underground mining stope space coal and rock often is in the effect of changeable strongly compressive stress field, and the variation of stope pressure from surrounding rock directly has influence on the effect quality of supporting method and the safety of personnel and equipment.Along with the continuing to increase of the coal mining degree of depth, dynamics and scale, have the problem of two aspects will seem more and more serious in recent years: the one, the compressive stress of the coal and rock of mining roadway increases; The 2nd, have the mine of generation bump tendency and have the quantity and the occurrence frequency of the mine of coal and gas outburst risk to increase year by year.Usually need in the engineering to quantize monitoring, so the stress of primary rock, country rock compressive stress, stope pressure distribution, obtaining for scientific research and production safety management of coal column abutment pressure equal pressure parameter all have very important effect to bringing out the compressive stress that digging space coal and rock destroys.Above-mentioned parameter mainly relies on and uses the monitoring equipment to obtain.
Monitoring device mainly is to be connected to form by high-pressure rubber pipe by pressure cushion, priming device and pressure-detecting device at present.Wherein above-mentioned parameter mainly relies on working pressure to rest the head on to obtain.Present pressure cushion adopts two block plate shapings to be welded.Because the steel plate rigidity is big, be not easy distortion, so sensitivity is low.Owing to need be installed in the coal and rock, need on the coal petrography wall, play several or tens borings, then pressure cushion is pushed and put into boring, it is strict to put into angle, and installation steps are loaded down with trivial details, so pressure cushion is put the error rate height, and pressure cushion has certain interval in the hole, makes to monitor the initial pressure value early, causes the data transformation mistake easily, or the monitoring failure, thereby can't satisfy scientific research and production safety management demand.Given this plant situation, need a kind of simple to operation, resolution ratio and highly sensitive, the monitored data compressive stress monitoring device of holing accurately.
Summary of the invention
The purpose of this utility model is to provide a kind of flexible mine compressive stress monitoring pressure pillow for the monitoring of mine compressive stress, and the monitoring device of making by this pressure cushion and the monitoring method of enforcement, the resolution ratio that exists with solution and sensitivity is low and the problem of difficult installation.
For achieving the above object, the technical scheme that the utility model pressure cushion adopts is: it comprises a flexible shell, the sealing of flexible shell one end, and the other end is provided with socket, by the guiding liquid injection pipe of a hard of socket insertion, the socket of guiding liquid injection pipe and housing will be realized pressure-resistant seal.
Described flexible shell carrying compressive stress is more preferably greater than 15Mpa.
Described flexible shell generally adopts nitrile rubber class material to make;
Described hard guiding liquid injection pipe generally adopts nylon rod to make, and its effect one is a guiding, makes flexible shell put into boring easily; The 2nd, oiling or emulsion are used for pressure detecting in flexible shell.
With the guiding liquid injection pipe of the utility model pressure cushion and pressure survey read apparatus is connected monitoring device, on pressure survey read apparatus, be provided with the fluid injection by-pass valve control.
The monitoring method of the utility model monitoring device is:
The first step: pressure cushion is put into the boring of coal petrography wall, by-pass valve control is connected with priming device, utilizes priming device to fill withstand voltage oil or emulsion by the guiding liquid injection pipe to pressure cushion inside, getting up until the pressure cushion blow-up closely contacts with the boring inwall, valve-off takes off priming device then;
Second step: survey read apparatus by pressure and read an initial value, when the boring compressive deformation, pressure is surveyed on the read apparatus a new reading will occur, front and back pressure reduction is instant force value, every then interval certain hour reading and recording one secondary data, draw the coal rock layer pressure history, analyze the coal rock layer pressure changing according to pressure history.Because pressure cushion is flexible, sensitivity is very high, and very little compressive stress changes and can both be captured by it.
The beneficial effects of the utility model are, pressure cushion is simple in structure, and is easy for installation, and shell adopts flexible material, makes pressure cushion need not note the direction of putting when putting into boring, directly push to put into to get final product.Closely contact with hole wall after the pressurising,, just can pounce on and grasp as long as rock mass has pressure a little, read untrue and loss situation have been solved, and the insensitive problem of pressure cushion, monitoring boring compressive stress that can be more accurately and timely is for scientific research and production safety management provide pressure parameter more accurately.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the constructional drawing of pressure cushion among the utility model embodiment.
Fig. 2 is the schematic diagram of the utility model embodiment one.
Fig. 3 is the schematic diagram of the utility model embodiment two.
Among the figure: 1-boring, 2-pressure cushion, 3-high-pressure rubber pipe, 4-coal petrography wall, 5a-oil pump, 5b-fluid injection gun, 6-pressure meter, 7-digital display meter, 8-by-pass valve control, 9-linker, 10-flexible shell, the 11-liquid injection pipe that leads.
The specific embodiment
As can be seen from Figure 1, pressure cushion 2 of the present utility model comprises a flexible shell 10, the sealing of flexible shell 10 1 ends, and the other end is provided with socket, insert a hard guiding liquid injection pipe 11 by socket, guiding liquid injection pipe 11 is realized pressure-resistant seal with the socket of flexible shell 10.
Embodiment of monitoring device that Fig. 2 is made up of the utility model pressure cushion, as can be seen from the figure, the guiding liquid injection pipe 11 of pressure cushion 2 is surveyed read apparatus by high-pressure rubber pipe 3 with linker 9 and the pressure of being made up of pressure meter 6 and digital display meter 7 and is connected, on pressure survey read apparatus, be provided with by-pass valve control 8, be connected with oil pump 5a by by-pass valve control 8.
In embodiment shown in Figure 3 two, structure is basic identical with embodiment one, and different is mainly is to substitute oil pump 5a with fluid injection gun 5b, is not described in detail at this.
Hard guiding liquid injection pipe 1 among the embodiment adopts the nylon rod material to make.
Claims (7)
1. a flexible mine compressive stress monitoring pressure pillow is characterized in that it comprises a flexible shell, the sealing of flexible shell one end, the other end is provided with socket, and by the guiding liquid injection pipe of a hard of socket insertion, the socket of guiding liquid injection pipe and housing will be realized pressure-resistant seal.
2. flexible mine as claimed in claim 1 compressive stress monitoring pressure pillow is characterized in that, described flexible shell carrying compressive stress is greater than 15Mpa.
3. flexible mine as claimed in claim 1 or 2 compressive stress monitoring pressure pillow is characterized in that, described flexible shell adopts nitrile rubber class material to make.
4. flexible mine as claimed in claim 1 or 2 compressive stress monitoring pressure pillow is characterized in that, described hard guiding liquid injection pipe adopts nylon rod to make.
5. flexible mine compressive stress monitoring device, it comprises pressure cushion and pressure survey read apparatus, it is characterized in that, described pressure cushion structure is: comprise a flexible shell, the sealing of flexible shell one end, the other end is provided with socket, and by the guiding liquid injection pipe of a hard of socket insertion, the socket of guiding liquid injection pipe and housing is realized pressure-resistant seal; On pressure survey read apparatus, be provided with the fluid injection by-pass valve control.
6. monitoring device as claimed in claim 5 is characterized in that, it is pressure meter and/or digital display meter that described pressure is surveyed read apparatus.
7. monitoring device as claimed in claim 5 is characterized in that, it is to have the regularly digital display manometer of stored record function that described pressure is surveyed read apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200367417U CN202073560U (en) | 2011-01-30 | 2011-01-30 | Pressure stress monitoring pressure cushion and monitoring device for flexible mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200367417U CN202073560U (en) | 2011-01-30 | 2011-01-30 | Pressure stress monitoring pressure cushion and monitoring device for flexible mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073560U true CN202073560U (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200367417U Expired - Fee Related CN202073560U (en) | 2011-01-30 | 2011-01-30 | Pressure stress monitoring pressure cushion and monitoring device for flexible mine |
Country Status (1)
| Country | Link |
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| CN (1) | CN202073560U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242630A (en) * | 2011-01-30 | 2011-11-16 | 山东科技大学 | Pressure stress monitoring pressure cushion and monitoring device for flexible mines as well as monitoring method of monitoring device |
| CN106014402A (en) * | 2016-07-25 | 2016-10-12 | 西南石油大学 | Packing medium measuring instrument for well wall deformation detection |
-
2011
- 2011-01-30 CN CN2011200367417U patent/CN202073560U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242630A (en) * | 2011-01-30 | 2011-11-16 | 山东科技大学 | Pressure stress monitoring pressure cushion and monitoring device for flexible mines as well as monitoring method of monitoring device |
| CN102242630B (en) * | 2011-01-30 | 2017-05-31 | 山东科技大学 | Flexible mine compression monitoring device and its monitoring method |
| CN106014402A (en) * | 2016-07-25 | 2016-10-12 | 西南石油大学 | Packing medium measuring instrument for well wall deformation detection |
| CN106014402B (en) * | 2016-07-25 | 2019-12-17 | 西南石油大学 | Filling medium measuring instrument for borehole wall deformation detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20130130 |