CN203241177U - Monitoring system of goaf rock coverage stability - Google Patents
Monitoring system of goaf rock coverage stability Download PDFInfo
- Publication number
- CN203241177U CN203241177U CN 201320242255 CN201320242255U CN203241177U CN 203241177 U CN203241177 U CN 203241177U CN 201320242255 CN201320242255 CN 201320242255 CN 201320242255 U CN201320242255 U CN 201320242255U CN 203241177 U CN203241177 U CN 203241177U
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- goaf
- steel tube
- monitoring system
- sleeving
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Abstract
The utility model discloses a monitoring system of goaf rock coverage stability. The monitoring system comprises a monitor disposed at a goaf and a peripheral base station within a working face roadway. The monitor is a movable sleeving formed by sleeving an upper seamless steel tube with a lower seamless steel tube; steel tube trays are fixed at the top end and the bottom end of the sleeving; a high-strength spring is disposed inside the sleeving, and a pressure sensor is disposed at the bottom part of the steel tubes; the top end of the high-strength spring is abutted to the tray at the top part of the sleeving, and the bottom end of the high-strength spring is abutted against the pressure sensor; a displacement sensor is welded on the lower steel tube tray; and the pressure sensor and the displacement sensor are connected with the peripheral base station by data lines. The monitoring system enables a real-time record of pressure and sedimentation value of a rock coverage stratum of a goaf, and state and time of the rock coverage stratum stability of the goaf can be obtained by a curve between pressure and time as well as a curve between displacement and time, and then state and time of the rock coverage stratum stability of the stope can be deduced in a reverse manner, so that a new idea for monitoring and determining the rock coverage stratum stability is provided.
Description
Technical field
The utility model relates to a kind of colliery stope overlying strata Stability Monitoring System, in particular for the stope overlying strata Stability Monitoring System of monitoring coal mine gob overburden pressure and sedimentation value.
Technical background
Press at present the monitoring field in the China's coal-mine ore deposit, monitoring for the workplace superincumbent stratum has had fairly perfect system, for example, the individual prop measuring cell that extensively adopt now in the colliery, fully mechanized mining supporter pressure prison continuous recording instrument etc., can both effectively observe the pressure of workplace superincumbent stratum, but at present actually rare for the system that can monitor simultaneously goaf overburden pressure and sedimentation value, especially especially rare to the monitoring of goaf superincumbent stratum sedimentation value, when therefore adopting monitoring goaf pressure and sedimentation value to change to predict stope overlying strata stability, still lack at present reliably monitoring instrument.
Summary of the invention
In order to monitor simultaneously goaf overburden pressure and sedimentation value, the utility model provides a kind of stope overlying strata Stability Monitoring System, can realize the Real-Time Monitoring of goaf stability of overlying rock strata, thereby anti-stable action time of stope overlying strata and the process released provides Data support when using without technology such as coal pillar mining for Coal Exploitation.
For achieving the above object, the technical solution of the utility model is:
A kind of stope overlying strata Stability Monitoring System, it comprises the monitor that is arranged on the goaf and is placed in the interior peripheral base stations of return airway; Described monitor is by two movable sleeve pipes that weldless steel tube connects together and forms up and down; Top and bottom at sleeve pipe all are fixed with steel pipe trays; In sleeve pipe, be provided with high strong spring, be provided with pressure transducer in lower steel pipe bottom; The upper end of high strong spring withstands on the pallet at sleeve pipe top, and the lower end of high strong spring withstands on the pressure transducer; Be welded with displacement transducer in lower steel pipe trays; Pressure transducer is connected with peripheral base stations by data line with displacement transducer.
When monitor was subject to the goaf overburden pressure, spring stress can produce compression, and this moment, pressure transducer can record pressure value, and displacement transducer can record sedimentation value, can obtain thus stress and the deflection of goaf superincumbent stratum.
Effect of the present utility model is: real time record pressure and the sedimentation value of goaf superincumbent stratum, can obtain by pressure and time curve and displacement and time curve state and the time of goaf stability of overlying rock strata, and then can instead push to adopt the state that interior overlying strata are stable and time, this provides a kind of new approaches for stope overlying strata stable monitoring and differentiation, simultaneously can the rational digging time provide decision-making foundation when determining the colliery without coal pillar mining.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the structural drawing of the utility model embodiment.
Fig. 2 is the use constitutional diagram of the utility model embodiment.
Among the figure: the upper weldless steel tube of 1-, weldless steel tube under the 2-, the high strong spring of 3-, 4-pressure transducer, 5-displacement transducer, steel pipe trays under the 6-, the upper steel pipe trays of 7-, 8-data line, 9-base station.
Embodiment
Fig. 1 is structural representation of the present utility model, and as can be seen from the figure, its main body is a sleeve pipe that is connected together and formed by upper weldless steel tube 1 and lower weldless steel tube 2, and sleeve pipe is fixed with respectively steel pipe trays 7 and lower steel pipe trays 6 in two ends up and down; Be provided with high strong spring 3 at inside pipe casing, be provided with pressure transducer 4 in lower weldless steel tube 2 bottoms, high strong spring 3 tops withstand on steel pipe trays 7 upper and lower parts and withstand on the pressure transducer 4; Be fixed with displacement transducer 5 in lower steel pipe trays 6, pressure transducer 4 is connected with peripheral base stations 9 by data line 8 with displacement transducer 5.
Fig. 2 is the use constitutional diagram of embodiment, as can be seen from the figure, and the upper weldless steel tube 1 effect down sliding that is stressed, the fit portion size increases, high strong spring 3 is compressed, and pressure transducer 4 and displacement transducer 5 readings change, and by data line 8 data are reached peripheral base stations 9.Variation by pressure and displacement readings, can clearly record goaf overburden pressure and change in displacement, and then state and the time that can draw the goaf stability of overlying rock strata, also can utilize thus " transmission rock beam " ore deposit to press the theoretical anti-stope overlying strata kinetic stability of releasing.
Upper weldless steel tube 1 is inner tube among the embodiment, and lower weldless steel tube 2 is outer tube, and weldless steel tube 1 is enclosed within the lower weldless steel tube 2.Must be inner tube but do not represent steel pipe, in practice, upper weldless steel tube 1 can be outer tube, and lower weldless steel tube 2 is inner tube, and weldless steel tube 1 is enclosed within outside the lower weldless steel tube 2.
Each parts optimum technology parameter is as follows among the utility model embodiment:
Upper weldless steel tube 1 length is 500mm, and internal diameter is 180mm, wall thickness 2mm:
Lower weldless steel tube 2 length are 500mm, internal diameter 182mm, wall thickness 2mm;
Lower steel pipe trays 6 and upper steel pipe trays 7 diameters are 220mm, and thickness is 10mm.
Claims (1)
1. an overburden of the goaf Stability Monitoring System is characterized in that, it comprises the monitor that is arranged on the goaf and is placed in the interior peripheral base stations of return airway; Described monitor is by two movable sleeve pipes that weldless steel tube connects together and forms up and down; Top and bottom at sleeve pipe all are fixed with steel pipe trays; In sleeve pipe, be provided with high strong spring, be provided with pressure transducer in lower steel pipe bottom; The upper end of high strong spring withstands on the pallet at sleeve pipe top, and the lower end of high strong spring withstands on the pressure transducer; Be welded with displacement transducer in lower steel pipe trays; Pressure transducer is connected with peripheral base stations by data line with displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320242255 CN203241177U (en) | 2013-05-07 | 2013-05-07 | Monitoring system of goaf rock coverage stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320242255 CN203241177U (en) | 2013-05-07 | 2013-05-07 | Monitoring system of goaf rock coverage stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203241177U true CN203241177U (en) | 2013-10-16 |
Family
ID=49318462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320242255 Expired - Fee Related CN203241177U (en) | 2013-05-07 | 2013-05-07 | Monitoring system of goaf rock coverage stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203241177U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248410A (en) * | 2016-07-14 | 2016-12-21 | 中国矿业大学 | A kind of simulation goaf water storage dam stability test device and method |
| CN108590766A (en) * | 2018-04-20 | 2018-09-28 | 程刚 | A kind of depression of coal mine gob overlying warp damage rock stratum monitors system |
| CN110332960A (en) * | 2019-08-06 | 2019-10-15 | 中信国安建工集团有限公司 | A kind of formwork safety monitoring assembly and monitoring method |
-
2013
- 2013-05-07 CN CN 201320242255 patent/CN203241177U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248410A (en) * | 2016-07-14 | 2016-12-21 | 中国矿业大学 | A kind of simulation goaf water storage dam stability test device and method |
| CN108590766A (en) * | 2018-04-20 | 2018-09-28 | 程刚 | A kind of depression of coal mine gob overlying warp damage rock stratum monitors system |
| CN110332960A (en) * | 2019-08-06 | 2019-10-15 | 中信国安建工集团有限公司 | A kind of formwork safety monitoring assembly and monitoring method |
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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 |
Granted publication date: 20131016 Termination date: 20150507 |
|
| EXPY | Termination of patent right or utility model |