CN105021662B - Adopt workplace regimen real-time dynamic monitoring test unit and test method - Google Patents
Adopt workplace regimen real-time dynamic monitoring test unit and test method Download PDFInfo
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Abstract
The invention discloses one and adopt workplace regimen real-time dynamic monitoring test unit, comprise square transparent vessel, the corresponding inner side edge of described container is vertically arranged with symmetrical separate slot, inserted in separate slot by different baffle plates and form a closed interval after combination, the similar operation face rock mass prepared by analog material is filled with in closed interval, pre-buried intact rubber bag, some electrodes and some strain gauges in the rock mass of similar operation face, rubber bag connects the tracheae extending to rock mass outside; Some electrodes are connected to cable by wire, and cable is connected with the electrical instrument of rock mass outside, similar operation face; Some strain gauges are connected through the display device of wire with rock mass outside, similar operation face; Described DC electrical method instrument is all connected with prior-warning device with display device.The invention also discloses the test method utilizing this test unit.The present invention can realize adopting workplace equivalent material simulating, can realize again the Real-Time Monitoring of regimen dynamic change in workplace mining active process.
Description
Technical field
The present invention relates to one and belong to workplace Equivalent Materials Testing device field, relate to and adopt workplace regimen real-time dynamic monitoring similarity model test device and test method.
Background technology
In recent years, the two large water damage problems that North China type coalfield faces in recovery process: one is take southwest in Shandong Province as water from sandstone roof under the large span of representative, large mining depth condition, water from sandstone roof has skewness and is difficult to the feature transferred, and advanced leting speeper is the gordian technique solving water from sandstone roof; Two is take Feicheng Coalfield as the old mining area of representative, through the exploitation of over half a century, mining depth enters deep, workplace is deeply by the danger of water-bearing with high pressure, especially the threat of aquifer in Ordovician limestone, be commonly referred to " grey gushing water difficult to understand ", slurry injection technique solves the important channel that high artesian is mined.No matter water from sandstone roof is visited in advance and released is floor grouting technology, how to realize the real-time dynamic monitoring of workplace regimen, become the important topic that can workplace safely, efficiently mine.
At present, in-situ measurement method and lab simulation method are mainly contained to the research of top, base plate regimen.Wherein in situ method comprises and drilling and geophysical prospecting method, the rich regimen condition of the exposure underground water that the method for drilling can be actual, but quantities is large, inefficiency; Geophysical prospecting can detect the rich regimen condition of underground regimen, but due to the multi-solution of geophysical prospecting method and the impact of down-hole complex environment, the advantage of restriction geophysical prospecting method.Lab simulation method comprises numerical simulation and equivalent material simulating, and wherein numerical simulation can only be simulated for a certain workplace, can not carry out large-area popularization; If carry out work on the spot face regimen real-time dynamic monitoring, need to drop into a large amount of funds and man power and material, most instrument and equipment can not reclaim, waste of manpower and resource, and workplace is more single, can not represent universal law, therefore, site test is infeasible.
Chinese patent application 201210038167 adopts transient electromagnetic apparatus as a part for workplace measuring point network, and transient electromagnetic apparatus advantage is responsive to post non of low resistance body, and detection accuracy rate is high; But its shortcoming be large by the impact of surrounding environment, interference is many, especially in exploitation process by the impact of " low-resistance interfering bodies ", data reliability has problems, and not only monitoring is inaccurate, easily causes spurious anomaly, affects the normal back production of workplace; This patent carries out emphasis monitoring to workplace key area in addition, just speaks of in general terms in key area, does not relate to the key area that in mining active process, rock pressure [in mine is formed formation damage.
Chinese patent application 201310728093 is gushed mainly for the anti-sealing sand body of coal mining under water-bodies is prominent, improves the seam mining upper limit and the test design of carrying out, belongs to a kind of special circumstances of roof water inrush, do not possess the universal significance of the real-time dynamic monitoring of workplace regimen.
Chinese patent application 201410529007,201410529019,201510134024, above three patents are mainly for research work face plate destructing depth in mining active process, although the occurrence status of plate destructing depth to base plate regimen has certain influence effect, but plate destructing depth and workplace regimen are two distinct concepts, therefore, plate destructing depth monitoring can not be considered as the Real-Time Monitoring of workplace regimen.Disclosed workplace water regime monitoring, the method technical scheme more complicated, execute-in-place cost is large, and utilize the regimen change of transient electromagnetic monitoring face, image data is with a low credibility, and monitoring effect is poor.This patent just realizes the monitoring of water burst in face hydrogeological condition, for the occurrence status of regimen in workplace mining active process and migration rule helpless.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, one is provided to adopt workplace regimen real-time dynamic monitoring test unit, can realize adopting workplace equivalent material simulating, can realize again in workplace mining active process based on the regimen dynamic change Real-Time Monitoring that rock pressure [in mine affects workplace, not only can realize the dynamic monitoring of top board regimen, also can realize the dynamic monitoring of base plate regimen, this test unit structure is simple, scientific in principle, Monitoring Data are accurate, convenient operation.
For achieving the above object, the present invention adopts following technical proposals:
One adopts workplace regimen real-time dynamic monitoring test unit, comprise square transparent vessel, the corresponding inner side edge of described container is vertically arranged with symmetrical separate slot, inserted in separate slot by different baffle plates and form a closed interval after combination, the similar operation face rock mass prepared by analog material is filled with in closed interval, pre-buried intact rubber bag, some electrodes and some strain gauges in the rock mass of similar operation face, rubber bag connects the tracheae extending to rock mass outside; Some electrodes are connected to cable by wire, and cable is connected with the electrical instrument of rock mass outside, similar operation face; Some strain gauges are connected through the display device of wire with rock mass outside, similar operation face; Described electrical instrument is all connected with prior-warning device with display device.
Described baffle plate leaves the hollow gap corresponding with " coal seam " space in similar operation face, adopting when carrying out top board test on hollow gap is 0.6m, the lower mode for 0.4m; When carrying out backplane testing, being inverted by dividing plate, changing into as 0.4m, the lower mode for 0.6m, with the demand of satisfied test.
Also being embedded with in the rock mass of described similar operation face can the water pipe of water outlet, and water pipe communicates with the water source of workplace rock mass outside, and the water pipe of workplace rock mass outside is provided with hydraulic pressure pressure regulator, water flowmeter and penstock.
Test unit also comprises adopts device and suspension device, described adopt device comprise for from rock mass both sides to the simulation little cleek that excavates of coal seam and little iron Chinese catalpa, described suspension device comprises the wooden unit that length equals similar operation face plagioclase, highly follows coal seam identical.
Described baffle plate is fixed on transparent vessel by hold-down nut.
Described rubber bag adopts gastight bicycle tube.
The pouring weight be added with for improving similar operation face rock mass volume-weighted average is established at described workplace rock mass top.
Described some electrodes are evenly parallel on cable by wire.
Rock mass top, described similar operation face is provided with the second cover electrode of snakelike layout in addition, and the second cover electrode is evenly in parallel with on the second cable by wire, and the second cable is connected with the electrical instrument of rock mass outside, similar operation face.
Adopt a test method for workplace regimen real-time dynamic monitoring test unit, comprising:
1) make square transparent vessel and baffle plate, and baffle combination is formed default closed interval;
2) in closed interval, make similar operation face rock mass, pre-buried electrode, cable, water pipe, strain gauge, rubber bag in the rock mass of similar operation face, and corresponding connection electrical instrument, water source, display device and tracheae, DC electrical method instrument is connected with prior-warning device respectively with display device; Some pouring weights are added at the rock mass top, similar operation face completed;
3) to first weighting in the recovery process of similar operation face, periodic weighting until the workplace stage of having adopted carry out the real-time dynamic monitoring of pressure, regimen.
Described step 3) in real-time dynamic monitoring comprise:
Before a workplace is adopted, first the test of front formation resistivity is once adopted to analog operation face, observe the stress value of Cai Qian rock stratum, rock stratum, resistivity and diverse location, then with plank, supporting is carried out to working seam place, little iron Chinese catalpa and little cleek is utilized to adopt coal seam, in mining active process, when the stress value situation of change of strain gauge and main roof caving, regimen Changing Pattern in situation and rock stratum is destroyed to floor strata during emphasis observation first weighting, record the real-time change data of resistivity in corresponding period;
After b has observed first weighting, to the real-time change situation of the destruction situation of floor strata, regimen situation of change and resistivity when observation cycle presses through STRESS VARIATION situation, main roof caving in journey successively, until workplace has been adopted; In mining active process, in the rubber bag of burying work beforehand face, inject a certain amount of air, by the expansion of gas, the change of simulation tectonic stress, the data situation of record stress and regimen; Meanwhile, utilize hydraulic pressure pressure regulator according to certain pressure or water yield water filling in workplace rock stratum, according to the change of the water yield or hydraulic pressure, analog operation face gushing water process, resistivity data in Real-time Collection gushing water process;
C is by resistivity Real-Time Monitoring module, the data such as stress, lithology, rock stratum in mining active process are transferred to prior-warning device, the each factor in rock stratum is analyzed to resistivity effects by prior-warning device, the emphasis determination property of water-bearing is to resistivity effects, PSO-SVR (particle group optimizing support vector regression) non-linear tool is utilized to set up gushing water model change threshold in workplace mining active process, when the data collected are less than this threshold value, make gushing water early warning, remind people to make water control measures.
Equivalent material simulating can accurate simulation down-hole coal excavation situation (especially top board " three band " development height), though the change of workplace regimen can not directly be observed out, but indirectly can carry out real-time dynamic monitoring to workplace regimen by change in resistance, the regimen Changing Pattern of summing up in test is applied in actual production, Instructing manufacture.
The present invention designs one and can realize adopting workplace equivalent material simulating, can realize again the experimental provision of regimen dynamic change Real-Time Monitoring in workplace mining active process.This device is in tempered glass container module, various sizes workplace can be freely realized according to the separate slot designed and baffle plate, utilize analog material module and adopt dynamic model block and realize adopting of similar operation face and coal seam, the control of the water yield and hydraulic pressure in similar operation face is realized by pressure regulation water supply module, utilization is adopted dynamic model block and is realized the back production of similar operation face, pre-buried electrode in similar operation face, realize resistivity data sampling and processing, according to change in resistance rule, analyze similar operation face at first weighting, regimen real-time change in the processes such as periodic weighting, the real-time dynamic monitoring of regimen in workplace mining active process is realized by real-time dynamic monitoring module, this experimental provision and test method principle simple, convenient operation.
Compared with the present invention operates with full size field test, its structure is simple, easy to operate, instrument and equipment expense is low, experimental enviroment good, the Real-Time Monitoring of regimen in workplace mining active process can be realized, can save a large amount of manpower and materials again, for workplace safety coal extraction provides test figure, guide field is produced.
Accompanying drawing explanation
Fig. 1 is tempered glass container figure of the present invention.
Fig. 2 is long baffle arrangement schematic diagram;
Fig. 3 is short shutter structural representation;
Fig. 4 lays electrode and strain gauge connection floor map in workplace rock stratum;
Fig. 5 is workplace top electrodes and cable plane schematic diagram;
Wherein, 1. tempered glass container, 2. separate slot, 3. long baffle plate, 4. short shutter, 5. hollow gap, 6. stress display device, 7. electrode, 8. strain gauge, 9. DC electrical method instrument, 10. pipe inlet.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
The present invention includes tempered glass container module, equivalent material simulating module, real-time dynamic monitoring module, adopt dynamic model block, pressure regulation water supply module, warning module six part.
(1) tempered glass container module
Wherein tempered glass container module comprises tempered glass container 1 and separate slot 2, long span plate 3 and the device such as short plate washer 4 and baffle plate fixed screw.
First make tempered glass container 1 (container is long is 3.5m, and wide is 2.5m, and height is 1.1m) according to Fig. 1, be respectively equipped with separate slot 2 at places such as LL ', KK ', II ', JJ ', EE ', FF ', GG ', HH '.Select two pieces, the long baffle plate 3 (shown in Fig. 2) that length is 3.5m, height is 1.1m, be placed on separate slot 2 position at JJ ', KK ' place respectively, and be fixed on container with the just long baffle plate of the hold-down nut of baffle plate.Selecting wide is 1.5m, the high short shutter 4 (shown in Fig. 3) two pieces for 1.1m, be placed on separate slot 2 position at EE ', HH ' place respectively, and with the hold-down nut of baffle plate just short shutter 4 be fixed on container, realize one long for 2.5m, wide is 1.5m, height is the workplace container of 1.1m, and in this container, realize ratio of similitude is 1:100 similar material simulation experiment.
As shown in Figure 2 and Figure 3, leave certain hollow gap 5 in the middle of baffle plate, fundamental purpose is to reserve similar operation face in mining active process for long baffle plate 3 and short shutter 4 structural design " coal seam " space, adopting of convenient " coal seam ".Adopting when carrying out top board water regime monitoring on hollow gap is 0.6m, the lower mode for 0.4m; When carrying out the examination of base plate water regime monitoring, being inverted by dividing plate, changing into as 0.4m, the lower mode for 0.6m, with the demand of satisfied test.
The workplace of the object arranging separate slot 2 and baffle plate independent assortment different length and width according to demand carries out equivalent material simulating.
(2) equivalent material simulating module
Equivalent material simulating module mainly comprises the materials such as sand, cement, gypsum and water, and the proportioning of equivalent material simulating module and preparation method are known technologies, do not repeat them here.
According to the needs of test, when carrying out top board simulation, be mixed and made into the feature rock mass changed for main coal seam top board mantlerock with sandstone and mud stone; When carrying out base plate equivalent material simulating, make based on the rock stratum body of the base plate rock signature of limestone and mud stone, when carrying out lithologic body and making, add certain saline solution in right amount, strengthen the electric conductivity of rock mass.
When making rock stratum, similar operation face, in rock mass, the intact rubber bag (bicycle tube) of pre-buried certain volume, connects tracheae in rubber bag, picked out outside rock mass, in mining active process, rubber bag is inflated, the tectonic stress change of workplace in simulation mining active process.Behind the rock stratum, similar operation face that completes, add some pouring weights at workplace top, increase the gravity of covering layer, improve similar operation face rock mass volume-weighted average.
(3) real-time dynamic monitoring module
Real-time dynamic monitoring module comprises specific resistance monitoring device, stress detection device and prior-warning device.
Specific resistance monitoring device comprises high-density electric instrument 9, electrode converter, thin copper wire electrode 7 (many), high-density electric private cable (many), cable and Electrode connection wire (many).Be embedded in by copper wire electrode 7 in the rock mass of similar operation face, pre-buried 66 electrodes 7 (electrode and cable being coupled together with wire), connect electrical instrument 9 and cable, carry out resistivity data collection.
Stress detection device is made up of strain gauge 8, stress display device 6 and connection wire.Strain gauge 8 is embedded in rock mass, and connecting line is accessed stress display device 6, in mining active process at the bottom of Real-Time Monitoring workplace, the change of roof Stress.
Prior-warning device comprises data analysis and control system and warning device.This device is by data analysis and control system, by collect stress, in lithology and rock stratum the property of water-bearing to the data analysis of resistivity effects, PSO-SVR (particle group optimizing support vector regression) non-linear tool is utilized to set up gushing water model change in resistance threshold value in workplace mining active process, when the data collected are less than this gushing water threshold value, make gushing water early warning, remind people to make water control measures.
(4) dynamic model block is adopted
Adopt dynamic model block to comprise and adopt device and suspension device, adopt device and comprise little cleek and little iron Chinese catalpa, utilize little iron Chinese catalpa and little cleek to excavate from rock mass both sides to simulation coal seam, the first weighting in analog operation face, periodic weighting are until similar operation face is just complete; In order to prevent in similar operation face rock mass roof completely failing in mining active process, supporting must be carried out to the rock stratum in similar operation face, therefore position is adopted in similar operation face, length is used to equal stope width, highly carrying out supporting with the wooden unit that coal seam is identical to adopting position, along with the movement of position is adopted in similar operation face, suspension device also moves thereupon.
(5) pressure regulation water supply module
Pressure regulation water supply module comprises the devices such as hydraulic pressure pressure regulator (0-8Mpa), water flowmeter, water pipe, penstock.When making similar operation face rock mass, the pipe inlet 10 that water passes pipe tempered glass container side is embedded in rock mass, in mining active process, according to testing requirements according to certain hydraulic pressure or the water yield, open water valve in advance or in mining active process to water filling in rock mass, the change procedure of analog operation face underground water, the Real-Time Monitoring module simultaneously utilizing pre-plugged good realizes the Real-Time Monitoring to workplace regimen.
(6) surface vessel of finishing the work combination, fixing after, carry out the making of rock stratum, similar operation face.When making rock stratum, similar operation face, following operation be completed:
A at certain depth place, rock stratum, similar operation face according to a determining deviation pre-buried 66, good electrode (little copper wire) figure (4), copper wire there is the long lead connected, long lead is connected to outside rock stratum, similar operation face, wire is connected with the cable interface of electrical instrument, realizes electrical instrument to Electrode connection.In order to ensure to prevent rock stratum, similar operation face to be caving in mining active process, affect the collecting work of resistivity data, need after making rock stratum, similar operation face completes, by top, workplace rock stratum according to shown in certain indirect laying electrode figure (5), and wire is picked out, and be connected with high-density acquisition cable, make other a set of data acquisition module.Carry out data acquisition by above two sets of data acquisition systems, not only prevent from rock stratum to be caving causing the termination of data acquisition, above two sets of data can also be carried out the contrast of effect.
Water pipe (diameter is 5mm), by the penstock of tempered glass container, is embedded in rock stratum, arranges hydraulic pressure pressure regulator and water control valve, control the hydraulic pressure in rock stratum, similar operation face and the water yield outside container by b.
C strain gauge is embedded in rock stratum shown in a determining deviation (Fig. 4), and by connecting wire sensor, sensor is linked together, by sensor display device, data acquisition is shown, utilize strain gauge to monitor similar operation face STRESS VARIATION value in mining active process.
The intact rubber bag (bicycle tube) of d pre-buried certain volume in rock mass, connects connection wireway, is picked out outside workplace rock stratum in rubber bag.In mining active process, rubber bag is inflated, the tectonic stress change of workplace in simulation mining active process.
Behind the rock stratum, similar operation face that completes, add some pouring weights at top, rock stratum, increase the gravity of covering layer, improve rock mass volume-weighted average.
(7) after completing above operation, to first weighting in the recovery process of similar operation face, periodic weighting until the workplace stage such as to have adopted carry out the real-time dynamic monitoring of stress, regimen.
Before a workplace is adopted, first the test of front formation resistivity is once adopted to analog operation face, observe the stress value of Cai Qian rock stratum, rock stratum, resistivity and diverse location, then from workplace EE ' plank, supporting is carried out to working seam place, little iron Chinese catalpa and little cleek is utilized to adopt coal seam, in mining active process, when the stress value situation of change of strain gauge and main roof caving, regimen Changing Pattern in situation and rock stratum is destroyed to floor strata during emphasis observation first weighting, record the real-time change data of resistivity in corresponding period.
After b has observed first weighting, to the real-time change situation of the destruction situation of floor strata, regimen situation of change and resistivity when observation cycle presses through STRESS VARIATION situation, main roof caving in journey successively, until workplace has been adopted.In mining active process, a certain amount of air can be injected in the rubber bag of burying work beforehand face, by the expansion of gas, the change of simulation tectonic stress, the data situation of record stress and regimen; Simultaneously, utilize pressure regulation water supply module in workplace rock stratum according to certain pressure or (water yield) water filling, according to the change of the water yield (or hydraulic pressure), analog operation face gushing water process, affects the data of change in resistance in Real-time Collection gushing water process.
C is by resistivity Real-Time Monitoring module, the data such as stress, lithology, rock stratum in mining active process are transferred to prior-warning device, the each factor in rock stratum is analyzed to resistivity effects by prior-warning device, the emphasis determination property of water-bearing is to resistivity effects, PSO-SVR (particle group optimizing support vector regression) non-linear tool is utilized to set up gushing water model change threshold in workplace mining active process, when the data collected are less than this threshold value, make gushing water early warning, remind people to make water control measures.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (8)
1. adopt workplace regimen real-time dynamic monitoring test unit for one kind, it is characterized in that, comprise square transparent vessel, the corresponding inner side edge of described container is vertically arranged with symmetrical separate slot, inserted in separate slot by different baffle plates and form a closed interval after combination, be filled with the similar operation face rock mass prepared by analog material in closed interval, pre-buried intact rubber bag, some electrodes and some strain gauges in the rock mass of similar operation face, rubber bag connects the tracheae extending to rock mass outside; Some electrodes are connected to cable by wire, and cable is connected with the electrical instrument of rock mass outside, similar operation face; Some strain gauges are connected through the display device of wire with rock mass outside, similar operation face; Described electrical instrument is all connected with prior-warning device with display device;
Described baffle plate leaves the hollow gap corresponding with " coal seam " space in similar operation face, adopting when carrying out top board test on hollow gap is 0.6m, the lower mode for 0.4m; When carrying out backplane testing, being inverted by dividing plate, changing into as 0.4m, the lower mode for 0.6m, with the demand of satisfied test;
Described baffle plate is fixed on transparent vessel by hold-down nut.
2. adopt workplace regimen real-time dynamic monitoring test unit as claimed in claim 1, it is characterized in that, also being embedded with in the rock mass of described similar operation face can the water pipe of water outlet, water pipe communicates with the water source of workplace rock mass outside, and the water pipe of workplace rock mass outside is provided with hydraulic pressure pressure regulator, water flowmeter and penstock.
3. adopt workplace regimen real-time dynamic monitoring test unit as claimed in claim 1, it is characterized in that, described test unit also comprises adopts device and suspension device, described adopt device comprise for from rock mass both sides to the simulation little cleek that excavates of coal seam and little iron Chinese catalpa, described suspension device comprises the wooden unit that length equals similar operation face plagioclase, highly follows coal seam identical.
4. adopt workplace regimen real-time dynamic monitoring test unit as claimed in claim 1, it is characterized in that, described rubber bag adopts gastight bicycle tube.
5. adopt workplace regimen real-time dynamic monitoring test unit as claimed in claim 1, it is characterized in that, the pouring weight be added with for improving similar operation face rock mass volume-weighted average is established at described workplace rock mass top.
6. adopt workplace regimen real-time dynamic monitoring test unit as claimed in claim 1, it is characterized in that, rock mass top, described similar operation face is provided with the second cover electrode of snakelike layout in addition, second cover electrode is evenly in parallel with on the second cable by wire, and the second cable is connected with the electrical instrument of rock mass outside, similar operation face.
7. utilize a test method of adopting workplace regimen real-time dynamic monitoring test unit described in claim 1, it is characterized in that, comprising:
1) make square transparent vessel and baffle plate, and baffle combination is formed default closed interval;
2) in closed interval, make similar operation face rock mass, pre-buried electrode, cable, water pipe, strain gauge and rubber bag in the rock mass of similar operation face, and corresponding connection electrical instrument, water source, display device and tracheae, electrical instrument is connected with prior-warning device respectively with display device; Some pouring weights are added at the rock mass top, similar operation face completed;
3) to first weighting in the recovery process of similar operation face, periodic weighting until the workplace stage of having adopted carry out the real-time dynamic monitoring of stress, regimen.
8. test method as claimed in claim 7, is characterized in that, described step 3) in real-time dynamic monitoring comprise:
Before a workplace is adopted, first the test of front formation resistivity is once adopted to analog operation face, observe the stress value of Cai Qian rock stratum, rock stratum, resistivity and diverse location, then with plank, supporting is carried out to working seam place, little iron Chinese catalpa and little cleek is utilized to adopt coal seam, in mining active process, when the stress value situation of change of strain gauge and main roof caving, regimen Changing Pattern in situation and rock stratum is destroyed to floor strata during emphasis observation first weighting, record the real-time change data of each influence factor in corresponding period;
After b has observed first weighting, to the real-time change situation of the destruction situation of floor strata, regimen situation of change and resistivity when observation cycle presses through STRESS VARIATION situation, main roof caving in journey successively, until workplace has been adopted; In mining active process, a certain amount of air can be injected in the rubber bag of burying work beforehand face, by the expansion of gas, the change of simulation tectonic stress, the data situation of record stress and regimen; Meanwhile, utilize pressure regulation water supply module according to certain pressure or water yield water filling in workplace rock stratum, according to the change of the water yield or hydraulic pressure, analog operation face gushing water process, affects the data of change in resistance in Real-time Collection gushing water process;
C is by resistivity Real-Time Monitoring module, the data such as stress, lithology, rock stratum in mining active process are transferred to prior-warning device, the each factor in rock stratum is analyzed to resistivity effects by prior-warning device, the emphasis determination property of water-bearing is to resistivity effects, PSO-SVR non-linear tool is utilized to set up gushing water model change threshold in workplace mining active process, when the data collected are less than this threshold value, make gushing water early warning, remind people to make water control measures.
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| CN105259046A (en) * | 2015-11-05 | 2016-01-20 | 安徽理工大学 | Analog simulation testing device for simulating automatic mining of underwater coal |
| CN105388266A (en) * | 2015-11-05 | 2016-03-09 | 刘柳平 | Simulation test device of pressure-bearing underwater coal mining and application method of simulation test device |
| CN107340318B (en) * | 2017-07-28 | 2019-12-31 | 太原理工大学 | Structural testing device and method for underground water and coal sample in pressurizing process |
| CN110793672B (en) * | 2019-11-13 | 2021-08-03 | 晋能控股煤业集团有限公司 | Ultra-thick coal seam fully mechanized caving mining device based on bottom plate deformation monitoring system |
| CN111123365B (en) * | 2019-12-17 | 2021-04-16 | 山西石泉煤业有限责任公司 | Goaf lagging water inrush early warning system based on natural potential method and application method thereof |
| CN113654817A (en) * | 2021-07-20 | 2021-11-16 | 中国矿业大学 | Multifunctional three-dimensional similar material simulation test system |
| CN114061814B (en) * | 2021-11-22 | 2023-06-20 | 西安科技大学 | Real-time dynamic monitoring test device for water conditions of roof of coal mine mining working face |
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