CN203669927U - Gob-side entry retaining mine ground pressure monitoring system - Google Patents
Gob-side entry retaining mine ground pressure monitoring system Download PDFInfo
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- CN203669927U CN203669927U CN201320439411.1U CN201320439411U CN203669927U CN 203669927 U CN203669927 U CN 203669927U CN 201320439411 U CN201320439411 U CN 201320439411U CN 203669927 U CN203669927 U CN 203669927U
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- pressure monitoring
- entry retaining
- side entry
- steel cylinder
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Abstract
The utility model provides a gob-side entry retaining mine ground pressure monitoring system which is mainly composed of a ground signal receiving system and an underground data collecting system. The ground signal receiving system comprises a computer and a data receiver and is connected with the underground data collecting system through a telephone wire. The underground data collecting system comprises an underground communication master station arranged outside a roadway and communication substations evenly arranged in the direction of the roadway. Roof separation values, deformation amount, loads and internal temperature of beside-roadway filling bodies and goaf side gas content and other parameters collected by monitoring instruments in the beside-roadway filling bodies are connected to the communication substations through wireless transmission, and the communication substations are connected with an underground communication master station through telephone wires. The utility model relates to a coal-pillar-free mine-exploiting pressure monitoring system, real-time monitoring and synchronous transmission of data are effectively achieved, and accuracy and reliability of gob-side entry retaining mine ground pressure monitoring data are guaranteed. System design is elaborate and reasonable, and the system is suitable for gob-side entry retaining mine ground pressure monitoring.
Description
Technical field
The present invention relates to a kind of rock pressure monitoring system, especially a kind of without coal pillar mining gob side entry retaining rock pressure monitoring system, under coal mine without coal pillar mining roadside support monitoring technology.
Background technology
Gob side entry retaining, as a main development direction without coal pillar mining, will become the main arrangement form of China's coal-mine stope drift active workings.At present both at home and abroad launch a large amount of work place study for gob side entry retaining from support technology and construction technology, and obtained certain achievement.But affected by various factors, for a long time, gob side entry retaining tunnel lacks improves reliable rock pressure monitoring system, directly cause gob side entry retaining mine pressure observation shortage of data or error excessive, seriously restrict summary and the grasp of gob side entry retaining strata behaviors rule, affected the process of theoretical research.The on-the-spot traditional single mine pressure monitoring technology generally using is not due to pointed and cannot obtain the required total data of gob side entry retaining.Limited by gob side entry retaining construction technology, the data such as roadside packing body top roof delamination, roadside packing body load and roadside packing body deformability that existing observation technology obtains by indirect mode obviously do not conform to the actual conditions, and cannot reflect really strata behaviors and surrouding rock deformation rule in the whole life cycle of gob side entry retaining.In addition, also can not get effective monitoring near parameters such as other pernicious gas content, roadside packing body internal temperature such as goaf side gas, and these data are direct and essential sign foundations of gob side entry retaining effect always.
Summary of the invention
Technical problem: the object of this invention is to provide one and can effectively monitor gob side entry retaining roadside packing body roof delamination, roadside packing body deformability, roadside packing body internal temperature, roadside packing body load, the isoparametric rock pressure monitoring system of goaf side gas bearing capacity, realize the real-time Transmission of ground and Underground pressure observation data.
Technical scheme: gob side entry retaining rock pressure monitoring system of the present invention, comprises ground signal receiving system and downhole data acquisition system.Described ground signal receiving system is made up of computer and data sink, and both connect by telephone wire.Described downhole data acquisition system is made up of the monitor that is arranged in the downhole communication master station in tunnel outside and move towards the communication substation of setting along tunnel and be installed in roadside packing body inside.Downhole communication master station is connected with intrinsic safety type power supply, is connected to each communication substation by down-hole telephone wire.The monitor that is installed in adjacent roadside packing body inside is delivered to corresponding communication substation by wireless transmission by the data-signal collecting.Described monitor is made up of inside and outside steel cylinder; be not subject to damage in filling work progress by outer steel cylinder monitoring for protection instrument; outer steel cylinder ensures that by the A-frame being installed on base monitor is not affected by external force in roadside packing process and occurs tilting or suffer other extraneous destructions, ensures Stability Analysis of Structures.Interior steel cylinder top connecting electronic roof separation indicator, before setting up monitor, electronics roof separation indicator is arranged in the wall rock drill-hole of roadside packing body top, and roof delamination value delivers to through being arranged in the optical fiber transmission of interior steel cylinder the roof delamination data cable concentrator that is arranged on inside and outside steel cylinder middle part; Electronics multiple position extensometer is installed in the outer steel cylinder at monitor middle part, outer steel cylinder is provided with sleeve that can be flexible at two ends, can change outer steel cylinder length according to the width adjustment sleeve stroke of actual roadside packing body, electronics multiple position extensometer is stored in multi-point displacement data cable concentrator by wireless transmission by data-signal; The outer steel cylinder of installing electronics multiple position extensometer leaves open slot near goaf side termination, and firedamp sensor is installed in inside, by wireless transmission, data-signal is directly transferred to the communication substation that is positioned at inner side, tunnel; Flat jack produces in deformation process and collects data-signal at interior steel cylinder pressurized, and data-signal is delivered to the pressure data cable concentrator that is positioned at inside and outside steel cylinder middle part by optical fiber transmission; Roof delamination data cable concentrator, multi-point displacement data cable concentrator, pressure data cable concentrator are all encapsulated in total data box.The data that total data box is collected are sent to corresponding communication substation by wireless signal.
Beneficial effect: the present invention is applied under coal mine in non chain pillar entryprotection mine pressure monitoring technology, specifically be applied in the gob side entry retaining mine pressure monitoring system of Gai Hu lane technology, can effectively realize the one step collection of the required mine pressure data of gob side entry retaining by gob side entry retaining rock pressure monitoring system, and realize ground and downhole data signal real-time Transmission, effectively avoid the error of indirect measurement and the manual read mistake occurring in process of fetching data.In addition, by integrated the monitoring parameters such as roadside packing body top roof delamination, roadside packing body deformability, roadside packing body load, roadside packing body internal temperature and goaf gas concentration, contribute to improve reliability and the globality of gob side entry retaining mine pressure observation data.Monitoring roadside packing body internal temperature selects for scientific and reasonable filler and the control of colliery spontaneous fire has important directive significance.The firedamp sensor that goaf side is arranged has effectively been filled up for a long time gob side entry retaining roadside packing body near the blank of goaf side gas-monitoring; realize goaf gas Real-Time Monitoring during whole gob side entry retaining, eliminated the goaf gas hidden danger that normal stope drift active workings are worked the mischief that transfinites.
Gob side entry retaining rock pressure monitoring system compact conformation, deft design is reasonable, simple to operate, under coal mine, there is practicality widely without coal pillar mining gob side entry retaining mine pressure monitoring technical elements, gob side entry retaining mine pressure monitoring technology is simplified, ensured the true and reliable of all measured datas.
Brief description of the drawings
Fig. 1 is the structural representation of gob side entry retaining rock pressure monitoring system of the present invention
Fig. 2 is the monitor installation site schematic diagram of gob side entry retaining rock pressure monitoring system of the present invention
Fig. 3 is the monitor internal construction schematic diagram of gob side entry retaining rock pressure monitoring system of the present invention
In figure: 1-computer, 2-data sink, 3-downhole communication master station, 4-intrinsic safety type power supply, 5-communication substation, 6-telephone wire, 7-monitor, 8-roadside packing body, 9-tunnel, 10-goaf, 11-electronics roof separation indicator, 12-optical fiber, 13-roof delamination data cable concentrator, 14-multi-point displacement data cable concentrator, 15-protects box, 16-firedamp sensor, 17-electronics multiple position extensometer, 18-pressure data cable concentrator, 19-flat jack, 20-base, 21-A-frame, 22-sleeve, 23-temperature pick up, the outer steel cylinder of 24-, 25-total data box, steel cylinder in 26-
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Shown in Fig. 1, gob side entry retaining rock pressure monitoring system of the present invention, comprise ground signal receiving system and downhole data acquisition system, computer (1) is connected with downhole communication master station (3) by telephone wire (6) with data sink (2), communication master station (3) is connected with intrinsic safety type power supply (4), along tunnel, (9) trend is evenly arranged communication substation (5), is connected with downhole communication master station (3) by telephone wire (6).Roadside packing body (8) inside that is arranged in goaf (10) outside is provided with monitor (7), the signal that monitor (7) gathers by wireless transmission be connected to communication substation (5).
Shown in Fig. 2, the monitor of gob side entry retaining rock pressure monitoring system of the present invention (7) is arranged on the inside of two roadside packing bodies (8), and the data-signal of collection is wirelessly transmitted to communication substation (5).
Shown in Fig. 3, the monitor of gob side entry retaining rock pressure monitoring system of the present invention (7) is made up of electronics roof separation indicator (11), firedamp sensor (16), temperature pick up (23) and flat jack (19).Electronics roof separation indicator (11) is arranged in the roof strata of roadside packing body (8) top, and the data-signal of collection is transferred to the roof delamination data cable concentrator (13) being positioned between outer steel cylinder (24) and steel cylinder (26) by optical fiber (12); Firedamp sensor (16) is arranged on the termination of outer steel cylinder (24) near goaf (10) side, by protection box (15) and external environment isolation, the data-signal of collection is directly wirelessly transmitted to communication substation (5); By being installed in the lateral deformation of electronics multiple position extensometer (17) the monitoring roadside packing body (8) in interior steel cylinder (26), electronics multiple position extensometer (17) two ends are fixed, when roadside packing body (8) deforms, electronics multiple position extensometer (17) produces deformation, and data-signal is transferred to multi-point displacement data cable concentrator (14); The outer steel cylinder termination that electronics multiple position extensometer (17) is installed is installed on telescopic sleeve (22), can adjust according to the width of roadside packing body (8), at the inner mounting temperature sensor of sleeve (22) (23), the temperature signal that temperature pick up (23) gathers is directly wirelessly transmitted to communication substation (5); Interior steel cylinder (26) end, top, contacts with the roof and floor of tunnel (9) respectively, tunnel (9) the other obturation of process inter-road (8) of crushing occurs that pressure manifests, change by flat jack (19) monitoring pressure that is installed in interior steel cylinder (26) middle part, flat jack (19) is transferred to pressure data cable concentrator (18) by optical fiber (12) by pressure data; Pressure data cable concentrator (18), roof delamination data cable concentrator (13) and multi-point displacement data cable concentrator (14) are encapsulated in the medium position composition total data box (25) of interior steel cylinder (26) and outer steel cylinder (24) jointly, allly in total data box (25) collect to such an extent that data are connected with communication substation (5) by wireless transmission.Whole monitor (7) keeps stable by the three-legged support (21) being fixed on base (20).
Claims (4)
1. gob side entry retaining rock pressure monitoring system, can realize the mensuration of obturation top roof delamination, obturation distortion and goaf side gas bearing capacity; It is characterized in that: the monitor that is installed in roadside packing body inside is made up of inside and outside steel cylinder, interior steel cylinder top connecting electronic roof separation indicator, installs electronics multiple position extensometer in outer steel cylinder, and outer steel cylinder is installed firedamp sensor near the termination of goaf side.
2. gob side entry retaining rock pressure monitoring system according to claim 1, it is characterized in that: the described electronics roof separation indicator (11) that is connected to interior steel cylinder (26) top, setting up monitor (7) before, be arranged in the wall rock drill-hole of roadside packing body (8) top.
3. gob side entry retaining rock pressure monitoring system according to claim 1, is characterized in that: the data-signal that described electronics multiple position extensometer (17) gathers is transferred to the roof delamination data cable concentrator (13) being positioned between outer steel cylinder (24) and steel cylinder (26) by optical fiber (12).
4. gob side entry retaining rock pressure monitoring system according to claim 1, is characterized in that: the data-signal that described firedamp sensor (16) gathers is directly wirelessly transmitted to the communication substation (5) that is positioned at inner side, tunnel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320439411.1U CN203669927U (en) | 2013-07-23 | 2013-07-23 | Gob-side entry retaining mine ground pressure monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320439411.1U CN203669927U (en) | 2013-07-23 | 2013-07-23 | Gob-side entry retaining mine ground pressure monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203669927U true CN203669927U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320439411.1U Expired - Fee Related CN203669927U (en) | 2013-07-23 | 2013-07-23 | Gob-side entry retaining mine ground pressure monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203669927U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781523A (en) * | 2016-03-02 | 2016-07-20 | 重庆大学 | Method for measuring swelling capacity of coal seam through ground drilling |
| CN110017169A (en) * | 2019-03-25 | 2019-07-16 | 淮北矿业股份有限公司 | A kind of monitoring system of ore faces roof pressure and gas drainage |
-
2013
- 2013-07-23 CN CN201320439411.1U patent/CN203669927U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781523A (en) * | 2016-03-02 | 2016-07-20 | 重庆大学 | Method for measuring swelling capacity of coal seam through ground drilling |
| CN110017169A (en) * | 2019-03-25 | 2019-07-16 | 淮北矿业股份有限公司 | A kind of monitoring system of ore faces roof pressure and gas drainage |
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| Date | Code | Title | Description |
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| 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: 20140625 Termination date: 20170723 |