CN201486546U - Mining stress monitoring system - Google Patents
Mining stress monitoring system Download PDFInfo
- Publication number
- CN201486546U CN201486546U CN2009202224730U CN200920222473U CN201486546U CN 201486546 U CN201486546 U CN 201486546U CN 2009202224730 U CN2009202224730 U CN 2009202224730U CN 200920222473 U CN200920222473 U CN 200920222473U CN 201486546 U CN201486546 U CN 201486546U
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Abstract
The utility model provides a mining stress monitoring system which comprises a host, a mining system interface and at least one mining pressure monitoring substation, wherein the host is connected with the mining system interface and connected with all the mining pressure monitoring substations through transmission cables; the host is used for inspecting all the mining pressure monitoring substations and collecting the data of all the substations; the mining system interface is a conversion interface of the system; the mining pressure monitoring substations are monitoring nodes on the monitoring system; at least one one-hole and multi-point borehole stressmeter is connected with each mining pressure monitoring substation; and the mining pressure monitoring substations collect the data of the one-hole and multi-point borehole stressmeters and upload the collected data to the host. The mining stress monitoring system comprehensively collects the stress data of the front part of the whole working surface by using the one-hole and multi-point borehole stressmeters to generate an isoline cloud picture of the stress change of a coal-rock body finally.
Description
Technical field
The utility model relates to a kind of mine monitoring stress system, arrange strain gauge by the stope in mining process, the variation of monitoring stope the place ahead coal and rock stress and the variation of mining induced stress field, thereby the effect of square bearing pressure, predicting rock burst belongs to the Coalmine's Monitoring and Controlling System field in face of the realization monitoring.
Background technology
Dig the tunnel under the coal mine and carry out exploitation work and be called adopting coal or country rock, after adopting generation, destroyed the balancing of stresses state of in situ rock mass, cause the stress redistribution of rock mass inside, when the stress of redistribution surpasses the ultimate strength of coal, rock, tunnel or coal-face coal, rock on every side destroyed, and move, up to forming new balancing of stresses state to adopting the space.Act on when adopting in the country rock and the supporting thing on power be called mining induced stress.Adopt may cause the coal seam roof and floor to collapse disconnected losing with destruction, support, general mine pressure phenomenons such as wall caving roof fall, pucking, big mine power phenomenon such as may cause also that bump, top board large tracts of land are pressed, rock burst, ore deposit shake, coal are given prominence to gas, the face of land subsides suddenly.
The corresponding stress of primary rock of stress of primary rock field, the part of adopting the space after adopting, is closed in the corresponding mining induced stress of mining induced stress field in the stress of primary rock field, and the stress state of each point all will change, and comprise the ratio of size, direction and vertical stress and horizontal stress etc.The mining induced stress field is dynamic, as a to change field, if can accurately find out the temporal and spatial evolution of mining induced stress field in the coal and rock recovery process, to estimating and predicting that mine pressure phenomenon, mine power phenomenon all have crucial meaning.Therefore must realize continuous monitoring truly.
Yet present monitoring technology is confined to the routine monitoring to work plane the place ahead mine pressure, the monitoring of promptly leading bearing pressure, and leading bearing pressure is meant that work plane the place ahead increases part along the stress of advance of the face direction.Generally be the boring of in the tunnel, beating different depth to rib one side, the Installation Stress sensor, the monitoring result by strain gauge obtains leading bearing pressure.In addition, because leading bearing pressure is a progressive formation, continuous monitoring is seldom carried out in such monitoring.Owing to be subjected to the restriction that a boring has only a measuring point, can only reflect a STRESS VARIATION on the line to the monitoring of leading bearing pressure, can't obtain the STRESS VARIATION of the face in work plane the place ahead, variation that also can't the corresponding field of force is comprehensively analyzed.
In view of above-mentioned problems of the prior art, we are necessary to design a kind of mine monitoring stress system that is used to monitor colliery coal and rock stress, with realization work plane the place ahead stress field are comprehensively analyzed.
Summary of the invention
Main purpose of the present utility model is to solve problems of the prior art, a kind of mine monitoring stress system is provided, arrange strain gauge by the stope in mining process, the variation of monitoring stope the place ahead coal and rock stress and the variation of mining induced stress field, thus realize the monitoring effect of square bearing pressure, predicting rock burst in front.
The purpose of this utility model is achieved by following technical proposals:
Be used to monitor the mine monitoring stress system of colliery coal and rock stress, it is characterized in that: comprising: main frame, mining system interface and at least one mining pressure monitoring substation; Described main frame and mining system interface join, and are connected by the mining pressure monitoring substation of transmission cable and each;
Described main frame is the core of this mine monitoring stress system, in order to described each mining pressure monitoring substation is patrolled and examined, gathers the data of each substation;
Described mining system interface is the translation interface of system;
Described mining pressure monitoring substation is the monitoring node on this monitoring system; At least be connected with one one hole multiple spot borehole stressmeter on each the is mining pressure monitoring substation; This is mining, and the pressure monitoring substation is gathered the data of each hole multiple spot borehole stressmeter, and with its data upload of gathering to main frame.
A described hole multiple spot borehole stressmeter comprises a total petroleum pipeline; On this total petroleum pipeline, be connected with some tee junctions respectively; Be connected with a stress monitoring terminal on each tee junction respectively;
Each stress monitoring terminal includes hydraulic jack, pressure sensor; Described hydraulic jack vertically is provided with; At the responsive end of the pressure signal of connection of the lower end of hydraulic jack one side and cut-in pressure sensor one end; This pressure sensor other end is connected with the signal output pin; Be connected with the one way valve of oil transportation in hydraulic jack at the lower end of hydraulic jack opposite side; This one way valve is connected with petroleum pipeline, and links to each other with described tee junction by this petroleum pipeline.
Described pressure sensor adopts pressure resistance type or capacitance pressure transducer.
Have at least a described mining pressure monitoring substation to be connected with a plurality of hole multiple spot borehole stressmeters and a plurality of single-point borehole stressmeter.
Also include guest machine; This guest machine is in parallel with described main frame, as the backup of main frame.
Also include the UPS back-up source; This UPS back-up source is a kind of uninterrupted power source, with thinking that whole mine monitoring stress system provides continual power supply.
Also include arrester; This arrester is arranged on the transmission cable circuit between described mining system interface and the mining pressure monitoring substation, prevents thunderbolt with the protection control signal.
The beneficial effects of the utility model are: this mine monitoring stress system that is used to monitor colliery coal and rock stress is to realize comprehensive stress data acquisition is carried out in entire working surface the place ahead by using a hole multiple spot borehole stressmeter, thereby realize the STRESS VARIATION in entire working surface the place ahead is carried out analysis-by-synthesis, and the sampled data between each monitoring point carried out association, generate the isopleth cloud atlas of coal and rock STRESS VARIATION.
Description of drawings
Fig. 1 is the structural representation of mine monitoring stress system;
Fig. 2 is the structural representation of a hole multiple spot borehole stressmeter;
Fig. 3 arranges schematic diagram for sampled point;
Fig. 4 is the isopleth cloud atlas schematic diagram of coal and rock STRESS VARIATION.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is used to monitor the structural representation of the mine monitoring stress system of colliery coal and rock stress for this.As shown in the figure, this mine monitoring stress system comprises: main frame 1, mining system interface 2 and at least one mining pressure monitoring substation 3.Described main frame 1 joins with mining system interface 2, and is connected by the mining pressure monitoring substation 3 of transmission cable and each.
Described main frame 1 is the core of this mine monitoring stress system, and it is patrolled and examined the mining pressure monitoring substation that articulates in the system after special-purpose software is installed, and gathers the data of each substation and sorts out, stores and draw analysis report.
Described mining system interface 2 is translation interfaces of system.In general, what the communications protocol of underground monitoring system adopted is CAN bus communication agreement, thus system to be connected to ground signal be the CAN bus signals, need be the RS232 signal that main frame 1 can be discerned by the transitions of mining system interface 2.Certainly, according to the actual design needs of monitoring system the communications protocol that can adopt be not limited in CAN bus communication agreement, so the scope that this patent is protected should not only limit to above-mentioned concrete transition form yet.
Described mining pressure monitoring substation 3 mainly is as the monitoring node on this monitoring system.As shown in the figure, be connected with one one hole multiple spot borehole stressmeter 4 at least on each mining pressure monitoring substation 3.The data that this is mining pressure monitoring substation 3 is gathered each hole multiple spot borehole stressmeters 4, and when main frame 1 is patrolled and examined this substation with its data upload of gathering to main frame 1.
It has focused on adopting a hole multiple spot borehole stressmeter 4 to substitute traditional single-point borehole stressmeter carrying out stress monitoring to should be pointed out that the designed mine monitoring stress system of this patent.By using a hole multiple spot borehole stressmeter to can be implemented in the STRESS VARIATION of monitoring a plurality of monitoring points in the boring simultaneously.So just can be arranged in entire working surface the place ahead (referring to Fig. 3) to the sampled point of monitoring system, but not be merely able to monitor the STRESS VARIATION that is distributed in the some monitoring points on the line as prior art.So just can carry out analysis-by-synthesis to the STRESS VARIATION in entire working surface the place ahead, and the sampled data between each monitoring point is carried out association by main frame.Thereby can obtain the isopleth cloud atlas of work plane the place ahead coal and rock STRESS VARIATION as shown in Figure 4.We can be clear that STRESS VARIATION where is the most obvious by such cloud atlas, thereby impact ground pressure is made prediction accurately.Obviously, it is more more clear, directly perceived than data that prior art obtains to monitor resulting isopleth cloud atlas by native system.
Fig. 2 is the structural representation of a described hole multiple spot borehole stressmeter.As shown in the figure, this hole multiple spot borehole stressmeter comprises total petroleum pipeline 21 of a rigidity.On total petroleum pipeline 21, be connected with some tee junctions 22 respectively.Be connected with a stress monitoring terminal 23 on each tee junction 22 respectively.Each stress monitoring terminal 23 includes hydraulic jack 24, pressure sensor 25.This pressure sensor 25 is generally selected pressure resistance type or capacitance pressure transducer, for use.Described hydraulic jack 24 vertically is provided with, at the responsive end 26 of the pressure signal of connection of the lower end of hydraulic jack 24 side and cut-in pressure sensor 25 1 ends; These pressure sensor 25 other ends are connected with signal output pin 27.Be connected with the one way valve 28 of oil transportation in hydraulic jack at the lower end of hydraulic jack 24 opposite side.This one way valve 28 is connected with petroleum pipeline 29, and links to each other with aforementioned tee junction 22 by this petroleum pipeline 29.
Hole multiple spot borehole stressmeter by the said structure design has solved the problem that existing single-point borehole stressmeter can't carry out multimetering.
In addition, the designed mine monitoring stress system of this patent also is provided with some in order to playing the parts of guaranteeing role, specific as follows except design has above-mentioned basic structure:
This mine monitoring stress system also includes guest machine 5.This guest machine 5 is in parallel with main frame 1, as the backup of described main frame 1.When main frame 1 broke down, guest machine 5 can replace main frame 1 to monitor.
This mine monitoring stress system also includes UPS back-up source 6.This UPS back-up source 6 is a kind of uninterrupted power source, mainly with thinking that whole mine monitoring stress system provides continual power supply, to ensure the safe operation of whole system.
This mine monitoring stress system also includes arrester 7.This arrester 7 is arranged on the transmission cable circuit between described mining system interface 2 and the mining pressure monitoring substation 3, prevents thunderbolt with the protection control signal.
Though should be pointed out that this patent is design focal point to have adopted the alternative traditional single-point borehole stressmeter of a hole multiple spot borehole stressmeter to carry out stress monitoring.But this does not illustrate the traditional single-point borehole stressmeter of monitoring system repulsion use that this patent is designed.In fact, aforementioned mining pressure monitoring substation 3 can be connected with a plurality of hole multiple spot borehole stressmeters and a plurality of single-point borehole stressmeter 8 simultaneously, forms two kinds of borehole stressmeters and mixes the form of implementing, and does not also influence the final result of use of this system.Therefore, this form with two kinds of borehole stressmeter mixing enforcements also should be within the protection domain of this patent.
In sum, the mine monitoring stress system that this patent is designed is used to monitor colliery coal and rock stress is to realize comprehensive stress data acquisition is carried out in entire working surface the place ahead by using a hole multiple spot borehole stressmeter, thereby realize the STRESS VARIATION in entire working surface the place ahead is carried out analysis-by-synthesis, and the sampled data between each monitoring point is carried out association.Persons skilled in the art are under this design philosophy, and any not creative transformation of being done all should be considered as within protection domain of the present utility model.
Claims (7)
1. mine monitoring stress system is characterized in that: comprising: main frame, mining system interface and at least one mining pressure monitoring substation; Described main frame and mining system interface join, and are connected by the mining pressure monitoring substation of transmission cable and each;
Described main frame is the core of this mine monitoring stress system, in order to described each mining pressure monitoring substation is patrolled and examined, gathers the data of each substation;
Described mining system interface is the translation interface of system;
Described mining pressure monitoring substation is the monitoring node on this monitoring system; At least be connected with one one hole multiple spot borehole stressmeter on each the is mining pressure monitoring substation; This is mining, and the pressure monitoring substation is gathered the data of each hole multiple spot borehole stressmeter, and with its data upload of gathering to main frame.
2. mine monitoring stress system as claimed in claim 1 is characterized in that: a described hole multiple spot borehole stressmeter comprises a total petroleum pipeline; On this total petroleum pipeline, be connected with some tee junctions respectively; Be connected with a stress monitoring terminal on each tee junction respectively;
Each stress monitoring terminal includes hydraulic jack, pressure sensor; Described hydraulic jack vertically is provided with; At the responsive end of the pressure signal of connection of the lower end of hydraulic jack one side and cut-in pressure sensor one end; This pressure sensor other end is connected with the signal output pin; Be connected with the one way valve of oil transportation in hydraulic jack at the lower end of hydraulic jack opposite side; This one way valve is connected with petroleum pipeline, and links to each other with described tee junction by this petroleum pipeline.
3. mine monitoring stress system as claimed in claim 2 is characterized in that: described pressure sensor adopts pressure resistance type or capacitance pressure transducer.
4. mine monitoring stress system as claimed in claim 1 or 2 is characterized in that: have at least a described mining pressure monitoring substation to be connected with a plurality of hole multiple spot borehole stressmeters and a plurality of single-point borehole stressmeter.
5. mine monitoring stress system as claimed in claim 1 is characterized in that: also include guest machine; This guest machine is in parallel with described main frame, as the backup of main frame.
6. mine monitoring stress system as claimed in claim 1 is characterized in that: also include the UPS back-up source; This UPS back-up source is a kind of uninterrupted power source, with thinking that whole mine monitoring stress system provides continual power supply.
7. mine monitoring stress system as claimed in claim 1 is characterized in that: also include arrester; This arrester is arranged on the transmission cable circuit between described mining system interface and the mining pressure monitoring substation, prevents thunderbolt with the protection control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202224730U CN201486546U (en) | 2009-09-07 | 2009-09-07 | Mining stress monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202224730U CN201486546U (en) | 2009-09-07 | 2009-09-07 | Mining stress monitoring system |
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| CN201486546U true CN201486546U (en) | 2010-05-26 |
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| CN2009202224730U Expired - Fee Related CN201486546U (en) | 2009-09-07 | 2009-09-07 | Mining stress monitoring system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628373A (en) * | 2012-04-27 | 2012-08-08 | 天地科技股份有限公司 | Impact ground pressure split source comprehensive early-warning method of coal mine |
| CN102998030A (en) * | 2012-11-29 | 2013-03-27 | 山西潞安环保能源开发股份有限公司 | Rock mass stress monitoring device |
| CN103473425A (en) * | 2013-09-23 | 2013-12-25 | 安徽理工大学 | Distinguishing method for mining-induced stress acting working surface coal dilatation based on binary discrete model |
| CN104265364A (en) * | 2014-07-31 | 2015-01-07 | 天地科技股份有限公司 | Monitoring determining method for working face goaf lateral coal plastic area width |
| CN104653226A (en) * | 2014-12-26 | 2015-05-27 | 中国矿业大学 | Stress-gradient-based method for dividing coal impact ground pressure danger area |
| CN107304681A (en) * | 2016-04-22 | 2017-10-31 | 天地科技股份有限公司 | Coal petrography gas composite power disaster is with position monitoring and pre-alarming method |
| CN109538297A (en) * | 2018-10-25 | 2019-03-29 | 大同煤矿集团有限责任公司 | A kind of Seam Mining stress one monitoring device |
| CN110174463A (en) * | 2018-10-09 | 2019-08-27 | 天地科技股份有限公司 | A kind of nondestructive quantitative measuring method of working face three-dimensional mining stress field |
| CN111337971A (en) * | 2020-04-21 | 2020-06-26 | 天地科技股份有限公司 | Coal body stress detection device based on controllable seismic source |
-
2009
- 2009-09-07 CN CN2009202224730U patent/CN201486546U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628373B (en) * | 2012-04-27 | 2014-04-23 | 天地科技股份有限公司 | Impact ground pressure split source comprehensive early-warning method of coal mine |
| CN102628373A (en) * | 2012-04-27 | 2012-08-08 | 天地科技股份有限公司 | Impact ground pressure split source comprehensive early-warning method of coal mine |
| CN102998030A (en) * | 2012-11-29 | 2013-03-27 | 山西潞安环保能源开发股份有限公司 | Rock mass stress monitoring device |
| CN102998030B (en) * | 2012-11-29 | 2014-12-24 | 山西潞安环保能源开发股份有限公司 | Rock mass stress monitoring device |
| CN103473425B (en) * | 2013-09-23 | 2016-08-24 | 安徽理工大学 | Based on Discrete-time Model with Two Neurons mining induced stress effect work surface coal dilatation method of discrimination |
| CN103473425A (en) * | 2013-09-23 | 2013-12-25 | 安徽理工大学 | Distinguishing method for mining-induced stress acting working surface coal dilatation based on binary discrete model |
| CN104265364A (en) * | 2014-07-31 | 2015-01-07 | 天地科技股份有限公司 | Monitoring determining method for working face goaf lateral coal plastic area width |
| CN104653226A (en) * | 2014-12-26 | 2015-05-27 | 中国矿业大学 | Stress-gradient-based method for dividing coal impact ground pressure danger area |
| CN107304681A (en) * | 2016-04-22 | 2017-10-31 | 天地科技股份有限公司 | Coal petrography gas composite power disaster is with position monitoring and pre-alarming method |
| CN110174463A (en) * | 2018-10-09 | 2019-08-27 | 天地科技股份有限公司 | A kind of nondestructive quantitative measuring method of working face three-dimensional mining stress field |
| CN110174463B (en) * | 2018-10-09 | 2021-06-04 | 天地科技股份有限公司 | Nondestructive quantitative testing method for three-dimensional mining stress field of working face |
| CN109538297A (en) * | 2018-10-25 | 2019-03-29 | 大同煤矿集团有限责任公司 | A kind of Seam Mining stress one monitoring device |
| CN111337971A (en) * | 2020-04-21 | 2020-06-26 | 天地科技股份有限公司 | Coal body stress detection device based on controllable seismic source |
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Granted publication date: 20100526 Termination date: 20150907 |
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