CN103437814A - 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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- CN103437814A CN103437814A CN2013103102394A CN201310310239A CN103437814A CN 103437814 A CN103437814 A CN 103437814A CN 2013103102394 A CN2013103102394 A CN 2013103102394A CN 201310310239 A CN201310310239 A CN 201310310239A CN 103437814 A CN103437814 A CN 103437814A
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- entry retaining
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Abstract
The invention relates to a gob-side entry retaining mine ground pressure monitoring system which mainly comprises a ground signal receiving system and a downhole data acquisition system. The ground signal receiving system comprises a computer and a data receiver, and is connected with the downhole data acquisition system through a telephone line. The downhole data acquisition system comprises a downhole communication general station which is arranged on the outer side of a roadway, and a communication branch station which is uniformly deployed along the direction of the roadway. The absciss layer value of a top plate of a filling body beside the roadway, deformation, load, internal temperature, content of gases on a goaf side and other parameters which are acquired by a monitoring instrument which is arranged in the filling body beside the roadway are transmitted wirelessly and connected with the communication branch station, and the communication branch station is connected with the downhole communication general station through the telephone line. The invention relates to a pressure monitoring system for exploiting mines without coal pillar, the real-time monitoring and synchronous transmission of a plurality of pieces of data are effectively realized, and the accuracy and reliability of gob-side entry retaining mine ground pressure observation data are ensured. The system design is exquisite and reasonable, and has general applicability in gob-side entry retaining mine 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 the 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 for gob side entry retaining, from support technology and construction technology, launched a large amount of work place study, and obtained certain achievement.But affected by various factors, for a long time, the 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.On-the-spot traditional single mine pressure monitoring technology of generally using is not due to pointed and can't obtain the required total data of gob side entry retaining.Limited by the 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 can't 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 purpose of this invention is to provide and a kind ofly 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 that ground and Underground press the real-time Transmission of 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 comprised of computer and data sink, and both connect by telephone wire.Described downhole data acquisition system is comprised of the downhole communication master station that is arranged in the tunnel outside and the monitor that move towards the communication substation of setting along tunnel and be installed in roadside packing body inside.Downhole communication master station is connected with the intrinsic safety type power supply, by the down-hole telephone wire, is connected to each communication substation.The monitor that is installed in adjacent roadside packing body inside is delivered to corresponding communication substation by wireless transmission by the data-signal collected.Described monitor is comprised of inside and outside steel cylinder; be not subject to damage in the filling work progress by outer steel cylinder monitoring for protection instrument; outer steel cylinder guarantees that by the A-frame be installed on base monitor is not affected by external force in the roadside packing process and occurs tilting or suffer other extraneous destructions, guarantees Stability Analysis of Structures.Interior steel cylinder top connecting electronic roof separation indicator, before setting up monitor, the electronics roof separation indicator is arranged in the wall rock drill-hole of roadside packing body top, and the roof delamination value is delivered to the roof delamination data cable concentrator that is arranged on inside and outside steel cylinder middle part through the optical fiber transmission that is arranged in interior steel cylinder; The 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, the 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 the electronics multiple position extensometer leaves open slot near the goaf side termination, and firedamp sensor is installed in inside, by wireless transmission, data-signal directly is transferred to the communication substation that is positioned at the inboard, 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 all are encapsulated in the total data box.The data that the 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 the gob side entry retaining rock pressure monitoring system, and realize ground and downhole data signal real-time Transmission, the mistake of effectively having avoided the error of indirect measurement and manual read to fetch data in process and occur.In addition, 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 are integrated, 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 the blank of the close goaf side gas-monitoring of gob side entry retaining roadside packing body for a long time; realize goaf gas Real-Time Monitoring during whole gob side entry retaining, eliminated the hidden danger that goaf gas transfinites normal stope drift active workings is worked the mischief.
Gob side entry retaining rock pressure monitoring system compact conformation, deft design is reasonable, simple to operate, there is practicality widely without coal pillar mining gob side entry retaining mine pressure monitoring technical elements under coal mine, gob side entry retaining mine pressure monitoring technology is simplified, guaranteed the true and reliable of all measured datas.
The accompanying drawing explanation
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: the 1-computer, the 2-data sink, 3-downhole communication master station, 4-intrinsic safety type power supply, 5-communication substation, the 6-telephone wire, the 7-monitor, 8-roadside packing body, the 9-tunnel, the 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, the 16-firedamp sensor, 17-electronics multiple position extensometer, 18-pressure data cable concentrator, the 19-flat jack, the 20-base, the 21-A-frame, the 22-sleeve, the 23-temperature pick up, the outer steel cylinder of 24-, 25-total data box, steel cylinder in 26-
The specific embodiment
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), by telephone wire (6), with downhole communication master station (3), is connected.Roadside packing body (8) inside that is arranged in goaf (10) outside is equipped with monitor (7), the signal that monitor (7) gathers by wireless transmission with to communication substation (5), be connected.
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 comprised of electronics roof separation indicator (11), firedamp sensor (16), temperature pick up (22) 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) be 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, and by the isolation of protection box (15) external environment, the data-signal of collection directly is 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, roadside packing body (8) is electronics multiple position extensometer (17) generation deformation while deforming, 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 be adjusted 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 directly is wirelessly transmitted to communication substation (5); The end, interior steel cylinder (26) top, contact 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, by flat jack (19) monitoring pressure that is installed in interior steel cylinder (26) middle part, change, flat jack (19) is transferred to pressure data cable concentrator (18) by optical fiber (12) by pressure data; The medium position that pressure data cable concentrator (18), roof delamination data cable concentrator (13) and multi-point displacement data cable concentrator (14) are encapsulated in interior steel cylinder (26) and outer steel cylinder (24) jointly forms total data box (25), allly in total data box (25) collects 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) be fixed on base (20).
Claims (5)
1. the gob side entry retaining rock pressure monitoring system, comprise ground signal receiving system and downhole data acquisition system; It is characterized in that: the monitor that is arranged in roadside packing body inside is delivered to corresponding communication substation by wireless transmission by the data-signal collected.
2. gob side entry retaining rock pressure monitoring system according to claim 1; it is characterized in that; described monitor (7) is installed in adjacent roadside packing body (8) inside, by outer steel cylinder (24) protection, is not subject to damage in the filling work progress.
3. gob side entry retaining rock pressure monitoring system according to claim 1 is characterized in that: described monitor (7) is connected with base (20) by three-legged support (21), the Stability Analysis of Structures of assurance monitor (7).
4. gob side entry retaining rock pressure monitoring system according to claim 1 is characterized in that: described monitor (7) is installed on can be according to the telescopic sleeve (22) of outer steel cylinder (24) length of width adjustment of roadside packing body (8).
5. gob side entry retaining rock pressure monitoring system according to claim 1; it is characterized in that: described monitor (7) is equipped with firedamp sensor (16) near goaf (10) side; there is protection box (15) in firedamp sensor (16) outside, and the signal that firedamp sensor (16) gathers directly is wirelessly transmitted to communication substation (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103102394A CN103437814A (en) | 2013-07-23 | 2013-07-23 | Gob-side entry retaining mine ground pressure monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103102394A CN103437814A (en) | 2013-07-23 | 2013-07-23 | Gob-side entry retaining mine ground pressure monitoring system |
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| CN103437814A true CN103437814A (en) | 2013-12-11 |
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| CN2013103102394A Pending CN103437814A (en) | 2013-07-23 | 2013-07-23 | Gob-side entry retaining mine ground pressure monitoring system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673982A (en) * | 2013-12-25 | 2014-03-26 | 山东科技大学 | On-line monitoring device and method of mining overburden stratum movement of shallow coal seam |
| CN104142187A (en) * | 2014-07-30 | 2014-11-12 | 冀中能源集团有限责任公司 | Gob-side entry retaining pasty filler on-line detection method |
| CN104897213A (en) * | 2015-06-16 | 2015-09-09 | 安徽理工大学 | Sensor for monitoring waste rock pressure and gas parameter in goaf |
| CN106643630A (en) * | 2016-11-17 | 2017-05-10 | 太原理工大学 | System and method of monitoring stability during gob-side entry retaining filling body stoping period |
| CN106705902A (en) * | 2016-11-17 | 2017-05-24 | 太原理工大学 | System and method for monitoring stability of filling strip |
| CN108051125A (en) * | 2017-12-06 | 2018-05-18 | 中国矿业大学(北京) | A kind of closed goaf caving zone stress field evolution measurement method |
| CN112360548A (en) * | 2020-11-24 | 2021-02-12 | 西安科技大学 | Roadside concrete filling body full-service period stability monitoring and early warning system and method |
| CN112761728A (en) * | 2021-01-06 | 2021-05-07 | 中国矿业大学 | System for monitoring heat source migration rule in filling body and working method thereof |
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| CN102654062A (en) * | 2012-06-05 | 2012-09-05 | 中国矿业大学 | Top plate dynamical monitoring method for comprehensive mechanical filling and mining gob |
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| FR2640784A1 (en) * | 1988-12-20 | 1990-06-22 | Charbonnages De France | Remote alarm for shafts |
| CN101519963A (en) * | 2009-03-28 | 2009-09-02 | 中国矿业大学 | Filling mining multi-information dynamic monitoring method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673982A (en) * | 2013-12-25 | 2014-03-26 | 山东科技大学 | On-line monitoring device and method of mining overburden stratum movement of shallow coal seam |
| CN103673982B (en) * | 2013-12-25 | 2018-08-17 | 山东科技大学 | A kind of shallow coal scam overlying strata movement on-Line Monitor Device and method |
| CN104142187A (en) * | 2014-07-30 | 2014-11-12 | 冀中能源集团有限责任公司 | Gob-side entry retaining pasty filler on-line detection method |
| CN104897213A (en) * | 2015-06-16 | 2015-09-09 | 安徽理工大学 | Sensor for monitoring waste rock pressure and gas parameter in goaf |
| CN106643630A (en) * | 2016-11-17 | 2017-05-10 | 太原理工大学 | System and method of monitoring stability during gob-side entry retaining filling body stoping period |
| CN106705902A (en) * | 2016-11-17 | 2017-05-24 | 太原理工大学 | System and method for monitoring stability of filling strip |
| CN108051125A (en) * | 2017-12-06 | 2018-05-18 | 中国矿业大学(北京) | A kind of closed goaf caving zone stress field evolution measurement method |
| CN112360548A (en) * | 2020-11-24 | 2021-02-12 | 西安科技大学 | Roadside concrete filling body full-service period stability monitoring and early warning system and method |
| CN112761728A (en) * | 2021-01-06 | 2021-05-07 | 中国矿业大学 | System for monitoring heat source migration rule in filling body and working method thereof |
| CN112761728B (en) * | 2021-01-06 | 2022-04-15 | 中国矿业大学 | System for monitoring heat source migration rule in filling body and working method thereof |
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Application publication date: 20131211 |