CN105974087A - Water-preserved mining solid-liquid coupling similarity simulation test apparatus suitable for near coal seams - Google Patents
Water-preserved mining solid-liquid coupling similarity simulation test apparatus suitable for near coal seams Download PDFInfo
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- CN105974087A CN105974087A CN201610284690.7A CN201610284690A CN105974087A CN 105974087 A CN105974087 A CN 105974087A CN 201610284690 A CN201610284690 A CN 201610284690A CN 105974087 A CN105974087 A CN 105974087A
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- 239000003245 coal Substances 0.000 title claims abstract description 36
- 238000004088 simulation Methods 0.000 title claims abstract description 36
- 238000005065 mining Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 title claims abstract description 20
- 238000010168 coupling process Methods 0.000 title claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000006073 displacement reaction Methods 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 238000012545 processing Methods 0.000 claims description 24
- 238000005259 measurement Methods 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 230000001133 acceleration Effects 0.000 claims description 7
- 238000003556 assay Methods 0.000 claims description 6
- 230000002706 hydrostatic effect Effects 0.000 claims description 6
- 230000037452 priming Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract 3
- 239000010410 layer Substances 0.000 description 39
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention discloses a water-preserved mining solid-liquid coupling similarity simulation test apparatus suitable for near coal seams. The bottom of a shell is provided with a water separation layer, and a humidity sensor is arranged in the water separation layer; the upper end of the water separation layer is provided with a water-bearing layer, the upper end of the waterproof layer is provided with a separator plate, the upper end of the separator plate is provided with a lower coal seam, the upper end of the lower coal layer is provided with a pressurizing device, and the pressurizing device is provided with a pressure sensor; the upper end of the pressurizing device is provided with a working surface wind duct, the upper end of the working surface wind duct is provided with a horizontal well, the upper end of the horizontal well is provided with an upper coal seam, a displacement sensor is arranged in the upper coal seam, and the upper end of the upper coal seam is provided with a rock layer; and the external of the shell is provided with a controller, the controller is provided with a display device, and the signal output ends of the displacement sensor, the pressure sensor and the humidity sensor are respectively connected with the controller. The apparatus can effectively simulate the water and rock stratum coexistence state in the water-bearing layer before mining of the near coal seams, and provides accurate data for water-preserved mining.
Description
Technical field
The invention belongs to assay device technical field, particularly relate to one and be applicable to close-in seams water protection mining admittedly
Liquid coupling analog simulation assay device.
Background technology
The large scale mining of coal can cause water-bearing layer to destroy, the significant wastage of surface water and groundwater resource,
Water damage causes serious economic loss and casualties to the exploitation of coal resources simultaneously.Due to practically
The complexity of lower on-the-spot stope mantlerock change and Unpredictability, utilize simulator stand to be simulated experiment,
It it is the effective way of research close-in seams water protection mining Overburden Rock Failure movement law.
Utilize simulation test device to carry out the research of complicated seam exploitation, already have relevant device, particularly
In the physical simulation test of research water protection mining, still concentrate on the thing in terms of two-dimentional, single-phase or solid-liquid
Reason analog simulation, and only with water pipe spray or simulate water-bearing layer with water bag；Such mode is difficult to mould
Intend water and rock mass are formed in water-bearing layer the structure overall variation under by mining influence, also cannot accurate mould
Intend owing to coal seam excavation overlying strata water producing fractures grows the water-bearing layer water level situation of change caused.
To this end, invent a kind of new analog, with solve prior art cannot be for close-in seams water protection mining
The defect of relatively accurate information is provided.
Summary of the invention
It is an object of the invention to provide one and be applicable to the examination of close-in seams water protection mining solid-liquid coupling analog simulation
Experiment device, it is intended to solve prior art and the defect of relatively accurate information cannot be provided for close-in seams water protection mining
Problem.
The present invention is achieved in that this is applicable to the test of close-in seams water protection mining solid-liquid coupling analog simulation
Device includes shell, and the bottom of shell is equipped with water barrier, is provided with humidity sensor in water barrier；Water proof
The upper end of layer is equipped with water-bearing layer, and the upper end in water-bearing layer is provided with dividing plate, and the upper end of dividing plate is equipped with lower coal seam,
The upper end in lower coal seam is provided with pressue device, and pressue device is provided with pressure transducer；Pressue device upper
End is provided with work surface air channel, and the upper end in work surface air channel is provided with horizontal well, and the upper end of horizontal well is provided with
Upper coal seam, is provided with displacement transducer in upper coal seam, the upper end in upper coal seam is equipped with lithosphere；Outside shell
Portion is provided with controller, and controller is provided with display, and displacement transducer, pressure transducer, humidity pass
The signal output part of sensor is connected with controller respectively, and the signal output part of controller is connected with display.
The present invention also takes following technical measures:
Described lower coal seam includes at least three rows and is respectively facing the simulation exploitation pipe that the similar coal column of both sides extends
Group；
Three rows simulate exploitation pipe group stacked combination together；
Often row's simulation exploitation pipe group is made up of a plurality of simulation exploitation pipe, and adjacent two rows simulate in exploitation pipe group
Simulation exploitation pipe be crisscross arranged.
Described controller includes the peripheral circuit of control chip and control chip, wherein, outside control chip
Enclose circuit to include:
First resistance, one end of the first resistance is connected with the outfan of pressure transducer, another of the first resistance
End ground connection；
First diode, the first diode and the first resistor coupled in parallel, the plus earth of the first diode, first
The negative electrode of diode and one end of the first resistance are connected；
Second diode, the second diode and the first Diode series, the anode of the second diode and the one or two
The negative electrode of pole pipe is connected, and the negative electrode of the second diode is connected with default power supply；
Series connection the first electric capacity and the second resistance, one end ground connection of the first electric capacity, the other end of the first electric capacity with
One end of control chip and the second resistance is respectively connected with, the other end of the second resistance and one end phase of the first resistance
Even.
Described control chip includes signal processing module, signal processing module and displacement transducer, pressure sensing
The signal that device, humidity sensor gather connects, and displacement transducer, pressure transducer, humidity sensor are each
All including multiple passage, the amount multiple to be collected of the plurality of passage corresponding equipment to be collected respectively, at signal
The signal processing method of reason module comprises the following steps:
1) harvester table is set up according to the address of each sensor at the lane database of data collecting system, described
Harvester table comprises the address information of all the sensors；
2) according to harvester table, scanning sensor obtains channel address and the channel number of each passage, according to
The channel address arrived and channel number, the most each sensor generates channel table, and described channel table all comprises phase
Channel address on induction sensor and channel number information；
3) according to all channel tables, data collecting system initializes a total acquisition tables, described total collection
Table is with amount to be collected as variable, and each amount to be collected is all corresponding with the channel address of respective channel and channel number；
4) XML format variable files is generated according to channel table, and by under each XML format variable files
Being dealt into the sensor of correspondence, each sensor is loaded into corresponding XML format variable files, described XML lattice
Formula variable files comprises channel address and the channel number information of passage；
5) each sensor is according to the information of corresponding XML format variable files, is gathered by respective channel
The data of equipment to be collected, sensor generates a point acquisition tables respectively according to collection value, in described point of acquisition tables
Each collection value is all corresponding with the channel address of respective channel and channel number；
6) it is dealt into data collecting system by unified for all points of acquisition tables, according to the channel address of each passage and logical
Taoist monastic name, inserts total acquisition tables by collection value；
7) timing scan passage obtains collection value, updates each point of acquisition tables, and then unification is dealt into data acquisition
System, updates total acquisition tables.
Described data collecting system is NI data collecting system, and described point of acquisition tables and total tableau format that gathers are
CVT form, described data collecting system is provided with and resides permanently process, reads total acquisition tables according to the time of setting, and
It is stored to the SQL SERVER value table of correspondence.
Described displacement transducer includes: tubulose displacement detector, resistive displacement measurement apparatus, static(al) water
Quasi-instrument, acceleration measurement device, vibration data processing means, temperature sensor, data acquisition unit, wireless
Mixed-media network modules mixed-media, data processing station, database server；
Tubulose displacement detector, resistive displacement measurement apparatus, hydrostatic level, acceleration measurement device,
Vibration data processing means, temperature sensor, data acquisition unit are by wireless module with data processing station even
Connecing, data processing station is connected with data server by wireless module.
Described tubulose displacement detector includes priming device, communicating pipe and sensor, the two ends of communicating pipe
Being connected with priming device, sensor fixed point was arranged on communicating pipe, and sensor is connected with data acquisition unit；
Tubulose displacement detector is provided with two monitoring criteria points, and datum mark is arranged on bank point or bridge
Dun Chu；
Resistive displacement measurement apparatus includes base and resistance scale, and base is arranged on bridge pier to be measured, resistance
Chi is arranged on base；
Displacement measuring device also includes solar panel, and solar panel is each structure of displacement measuring device
Device is become to power.
Described humidity sensor includes:
Flexible base board, uses flexible PCB material and PI material to make；
LC metal level, is arranged on the top of flexible base board, uses copper metal material to make；
Wet sensitive dielectric layer, is arranged on the top of LC metal level；
Paraffin-protected layer, is arranged on the top of wet sensitive dielectric layer, is used for being dielectrically separated from.
The length of described flexible base board, width and thickness are respectively 46.5 × 31.5 × 0.35mm；
The a length of 38.2mm of LC metal level, width is 23mm；
In LC metal level, the thickness of copper metal is 0.02mm, and interdigital capacitor C is 18 groups, interdigital a length of
20.9mm, interdigital width is 0.5mm, and interdigital spacing is 0.1mm, a length of 23mm of interdigital capacitor group,
Width is 13.2mm；
The a length of 7.6mm of Meander line inductor inner edge, a length of 23mm in outside, coil width is 0.5mm, coil
Spacing is 0.1mm, and the spacing of interdigital capacitor group and Meander line inductor is 2mm；
Wet sensitive dielectric layer is the thin film that wet sensitive PI material is made, and even application interdigital electricity in LC metal level
Between the copper metal layer of appearance group, the thickness of wet sensitive dielectric layer is 0.001mm；
Paraffin-protected layer is completely covered on the Meander line inductor part on LC metal level, and thickness is 0.1mm；
The dielectric constant of wet sensitive dielectric layer is 3.6.
Described horizontal well includes:
At least two mouthfuls of U-shaped wells, each U-shaped well includes straight well section and coordinates straight well, high-land residing for straight well section
In coordinating physical features residing for straight well；
At least a bite multi-branched horizontal well, every mouthful of multi-branched horizontal well is arranged in correspondence with at adjacent two mouthfuls of U-shaped wells
Between, every mouthful of multi-branched horizontal well include straight well section, the main borehole being connected with straight well section and with main borehole phase
The branch well hole connected and downwardly extend；
The branch well hole of every mouthful of multi-branched horizontal well extends to the U-shaped well being adjacent respectively, and with corresponding
U-shaped well directly connects or permeates connection.
The present invention has the advantage that with good effect: this is applicable to close-in seams water protection mining solid-liquid coupling phase
Like simulation test device, it is possible to effective simulation close-in seams exploits water and rock stratum coexisting state in front water-bearing layer,
Accurate data are provided for water-retaining production.
The present invention will have been made into automatic management, interpolation by manual edit variable name originally, and the system that decreases is set up
With the cost safeguarded；Originally the system closed has been made applicable any instrument into and frame that language can access
Structure, it is adaptable to build large-scale data collecting system, or and integration of information system；The data acquisition of the present invention
Mode set ratio when variable is more than 1000 uses shared variable mode, and collecting efficiency can be high more than 20 times.
Accompanying drawing explanation
Fig. 1 is that the close-in seams water protection mining solid-liquid coupling analog simulation that is applicable to that the embodiment of the present invention provides tries
The structural representation of experiment device；
Fig. 2 is the structural representation of the displacement transducer that the embodiment of the present invention provides；
Fig. 3 is the structural representation of the humidity sensor that the embodiment of the present invention provides；
Fig. 4 is the illustraton of model of the humidity sensor circuit that the embodiment of the present invention provides；
In figure: 1, shell；2, displacement transducer；2-1, tubulose displacement detector；2-2, resistive displacement
Measurement apparatus；2-3, hydrostatic level；2-4, acceleration measurement device；2-5, vibration data processing means；
2-6, temperature sensor；2-7, data acquisition unit；2-8, wireless network module；2-9, data processing station；
2-10, database server；3, pressure transducer；4, humidity sensor；4-1, flexible base board；4-2、
LC metal level；4-3, interdigital capacitor group；4-4, Meander line inductor；4-5, wet sensitive dielectric layer；4-6, stone
Wax protective layer；5, lithosphere；6, upper coal seam；7, horizontal well；8, work surface air channel；9, pressue device；
10, lower coal seam；11, dividing plate；12, water-bearing layer；13, water barrier；14, controller；15, display.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment,
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to
Explain the present invention, be not intended to limit the present invention.
Below in conjunction with the accompanying drawings 1 to 4 and specific embodiment the application principle of the present invention is further described.
This is applicable to close-in seams water protection mining solid-liquid coupling analog simulation assay device and includes shell 1, shell 1
Bottom be equipped with water barrier 13, humidity sensor 4 is installed in water barrier 13；The upper end of water barrier 13
Being equipped with water-bearing layer 12, the upper end in water-bearing layer 12 is provided with dividing plate 11, and the upper end of dividing plate 11 is equipped with lower coal
Layer 10, the upper end in lower coal seam 10 is provided with pressue device 9, and pressue device 9 is provided with pressure transducer 3；
The upper end of pressue device 9 is provided with work surface air channel 8, and the upper end in work surface air channel 8 is provided with horizontal well 7,
The upper end of horizontal well 7 is provided with coal seam 6, is provided with displacement transducer 2 in upper coal seam 6, upper coal seam 6
Upper end is equipped with lithosphere 5；The outside of shell 1 is provided with controller 14, and controller 14 is provided with display
Device 15, displacement transducer 2, pressure transducer 3, humidity sensor 4 signal output part respectively with controller
14 are connected, and the signal output part of controller 14 is connected with display 15.
Described lower coal seam 10 includes at least three rows and is respectively facing the simulation exploitation that the similar coal column of both sides extends
Pipe group；
Three rows simulate exploitation pipe group stacked combination together；
Often row's simulation exploitation pipe group is made up of a plurality of simulation exploitation pipe, and adjacent two rows simulate in exploitation pipe group
Simulation exploitation pipe be crisscross arranged.
Described controller 14 includes the peripheral circuit of control chip and control chip, wherein, control chip
Peripheral circuit includes:
First resistance, one end of the first resistance is connected with the outfan of pressure transducer 3, the first resistance another
One end ground connection；
First diode, the first diode and the first resistor coupled in parallel, the plus earth of the first diode, first
The negative electrode of diode and one end of the first resistance are connected；
Second diode, the second diode and the first Diode series, the anode of the second diode and the one or two
The negative electrode of pole pipe is connected, and the negative electrode of the second diode is connected with default power supply；
Series connection the first electric capacity and the second resistance, one end ground connection of the first electric capacity, the other end of the first electric capacity with
One end of control chip and the second resistance is respectively connected with, the other end of the second resistance and one end phase of the first resistance
Even.
Described control chip includes signal processing module, signal processing module and displacement transducer, pressure sensing
The signal that device, humidity sensor gather connects, and displacement transducer, pressure transducer, humidity sensor are each
All including multiple passage, the amount multiple to be collected of the plurality of passage corresponding equipment to be collected respectively, at signal
The signal processing method of reason module comprises the following steps:
1) harvester table is set up according to the address of each sensor at the lane database of data collecting system, described
Harvester table comprises the address information of all the sensors；
2) according to harvester table, scanning sensor obtains channel address and the channel number of each passage, according to
The channel address arrived and channel number, the most each sensor generates channel table, and described channel table all comprises phase
Channel address on induction sensor and channel number information；
3) according to all channel tables, data collecting system initializes a total acquisition tables, described total collection
Table is with amount to be collected as variable, and each amount to be collected is all corresponding with the channel address of respective channel and channel number；
4) XML format variable files is generated according to channel table, and by under each XML format variable files
Being dealt into the sensor of correspondence, each sensor is loaded into corresponding XML format variable files, described XML lattice
Formula variable files comprises channel address and the channel number information of passage；
5) each sensor is according to the information of corresponding XML format variable files, is gathered by respective channel
The data of equipment to be collected, sensor generates a point acquisition tables respectively according to collection value, in described point of acquisition tables
Each collection value is all corresponding with the channel address of respective channel and channel number；
6) it is dealt into data collecting system by unified for all points of acquisition tables, according to the channel address of each passage and logical
Taoist monastic name, inserts total acquisition tables by collection value；
7) timing scan passage obtains collection value, updates each point of acquisition tables, and then unification is dealt into data acquisition
System, updates total acquisition tables.
Described data collecting system is NI data collecting system, and described point of acquisition tables and total tableau format that gathers are
CVT form, described data collecting system is provided with and resides permanently process, reads total acquisition tables according to the time of setting, and
It is stored to the SQL SERVER value table of correspondence.
Described displacement transducer 2 includes: tubulose displacement detector 2-1, resistive displacement measurement apparatus 2-2,
Hydrostatic level 2-3, acceleration measurement device 2-4, vibration data processing means 2-5, temperature sensor 2-6,
Data acquisition unit 2-7, wireless network module 2-8, data processing station 2-9, database server 2-10；
Tubulose displacement detector 2-1, resistive displacement measurement apparatus 2-2, hydrostatic level 2-3, acceleration are surveyed
Amount device 2-4, vibration data processing means 2-5, temperature sensor 2-6, data acquisition unit 2-7 are by wireless
Module is connected with data processing station 2-9, and data processing station 2-9 is by wireless module with data server even
Connect.
Described tubulose displacement detector 2-1 includes priming device, communicating pipe and sensor, the two of communicating pipe
End is connected with priming device, and sensor fixed point was arranged on communicating pipe, and sensor is connected with data acquisition unit 2-7；
Tubulose displacement detector 2-1 is provided with two monitoring criteria points, datum mark be arranged on bank point or
At bridge pier；
Resistive displacement measurement apparatus 2-2 includes base and resistance scale, and base is arranged on bridge pier to be measured, electricity
Resistance chi is arranged on base；
Displacement measuring device also includes solar panel, and solar panel is each structure of displacement measuring device
Device is become to power.
Being detected by tubulose displacement detector 2-1, the deformation of width is by resistive displacement measurement apparatus
2-2 detects, and construction is easy, low cost, uses and organizes sensor more, it is possible to is acquired each data respectively,
Dispersion situation can be carried out the most real-time, comprehensive monitoring, use modern network communication communication technology, automatization
Degree is high, saves substantial amounts of manpower financial capacity, can set up large-scale monitoring network.
Described humidity sensor 4 includes:
Flexible base board 4-1, uses flexible PCB material and PI material to make；
LC metal level 4-2, is arranged on the top of flexible base board 4-1, uses copper metal material to make；
Wet sensitive dielectric layer 4-5, is arranged on the top of LC metal level 4-2；
Paraffin-protected layer 4-6, is arranged on the top of wet sensitive dielectric layer 4-5, is used for being dielectrically separated from.
The described length of flexible base board 4-1, width and thickness are respectively 46.5 × 31.5 × 0.35mm；
The a length of 38.2mm of LC metal level 4-2, width is 23mm；
In LC metal level 4-2, the thickness of copper metal is 0.02mm, and interdigital capacitor C is 18 groups, interdigital a length of
20.9mm, interdigital width is 0.5mm, and interdigital spacing is 0.1mm, interdigital capacitor group 4-3 a length of
23mm, width is 13.2mm；
The a length of 7.6mm of Meander line inductor 4-4 inner edge, a length of 23mm in outside, coil width is 0.5mm,
Coil-span is 0.1mm, and the spacing of interdigital capacitor group 4-3 and Meander line inductor 4-4 is 2mm；
Wet sensitive dielectric layer 4-5 is the thin film that wet sensitive PI material is made, and even application is at LC metal level 4-2
Between the copper metal layer of middle interdigital capacitor group 4-3, the thickness of wet sensitive dielectric layer 4-5 is 0.001mm；
Paraffin-protected layer 4-6 is completely covered on the Meander line inductor 4-4 part on LC metal level 4-2, thick
Degree is 0.1mm；
The dielectric constant of wet sensitive dielectric layer 4-5 is 3.6.
Ground floor is flexible base board 4-1, and the second layer is LC metal level 4-2, and third layer is wet sensitive dielectric layer 4-5,
4th layer is that paraffin-protected layer 4-6, flexible base board 4-1 use flexible PCB material and PI material to make, LC
Metal level 4-2 is arranged on the top of flexible base board 4-1, uses copper metal material to make, wet sensitive dielectric layer 4-5
Being arranged on the top of LC metal level 4-2, paraffin-protected layer 4-6 is arranged on the top of wet sensitive dielectric layer 4-5,
For being dielectrically separated from；The employing of flexible base board 4-1 simplifies the preparation technology flow process of humidity sensor 4,
Reduce production cost, and widen the applied environment of humidity sensor 4.
Described horizontal well 7 includes: at least two mouthfuls of U-shaped wells, and each U-shaped well includes straight well section and coordinates straight
Well, physical features residing for straight well section is higher than coordinating physical features residing for straight well；
At least a bite multi-branched horizontal well 7, every mouthful of multi-branched horizontal well 7 be arranged in correspondence with adjacent two mouthfuls U-shaped
Between well, every mouthful of multi-branched horizontal well 7 includes straight well section, the main borehole being connected with straight well section and and main shaft
The branch well hole that eye is connected and downwardly extends；
The branch well hole of every mouthful of multi-branched horizontal well 7 extends to the U-shaped well that is adjacent respectively, and with accordingly
U-shaped well directly connect or permeate connection.
Pressue device 9 carries out pressure testing to lower coal seam 10, is detected in water-bearing layer 12 by humidity sensor 4
Can moisture enter through water barrier.Simultaneously by deformation and the displacement in the upper coal seam 6 of displacement transducer 2 detection
Situation, is transferred to controller 14 by testing result, is shown by display 15.Effectively simulate low coverage
In the front water-bearing layer of seam mining 12, water and rock stratum coexisting state, provide accurate data for water-retaining production.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (10)
1. one kind is applicable to close-in seams water protection mining solid-liquid coupling analog simulation assay device, it is characterised in that
This is applicable to close-in seams water protection mining solid-liquid coupling analog simulation assay device and includes shell, the bottom of shell
It is equipped with water barrier, humidity sensor is installed in water barrier；The upper end of water barrier is equipped with water-bearing layer, contains
The upper end of water layer is provided with dividing plate, and the upper end of dividing plate is equipped with lower coal seam, and the upper end in lower coal seam is provided with pressurization
Device, pressue device is provided with pressure transducer；The upper end of pressue device is provided with work surface air channel, work
The upper end making air channel, face is provided with horizontal well, and the upper end of horizontal well is provided with coal seam, is provided with in upper coal seam
Displacement transducer, the upper end in upper coal seam is equipped with lithosphere；The outside of shell is provided with controller, controller
On display is installed, displacement transducer, pressure transducer, humidity sensor signal output part respectively with
Controller is connected, and the signal output part of controller is connected with display.
It is applicable to close-in seams water protection mining solid-liquid coupling analog simulation test dress the most as claimed in claim 1
Put, it is characterised in that described lower coal seam includes at least three rows and is respectively facing the similar coal column extension of both sides
Simulation exploitation pipe group；
Three rows simulate exploitation pipe group stacked combination together；
Often row's simulation exploitation pipe group is made up of a plurality of simulation exploitation pipe, and adjacent two rows simulate in exploitation pipe group
Simulation exploitation pipe be crisscross arranged.
It is applicable to close-in seams water protection mining solid-liquid coupling analog simulation test dress the most as claimed in claim 1
Put, it is characterised in that described controller includes the peripheral circuit of control chip and control chip, wherein,
The peripheral circuit of control chip includes:
First resistance, one end of the first resistance is connected with the outfan of pressure transducer, another of the first resistance
End ground connection；
First diode, the first diode and the first resistor coupled in parallel, the plus earth of the first diode, first
The negative electrode of diode and one end of the first resistance are connected；
Second diode, the second diode and the first Diode series, the anode of the second diode and the one or two
The negative electrode of pole pipe is connected, and the negative electrode of the second diode is connected with default power supply；
Series connection the first electric capacity and the second resistance, one end ground connection of the first electric capacity, the other end of the first electric capacity with
One end of control chip and the second resistance is respectively connected with, the other end of the second resistance and one end phase of the first resistance
Even.
It is applicable to close-in seams water protection mining solid-liquid coupling analog simulation test dress the most as claimed in claim 3
Put, it is characterised in that described control chip includes signal processing module, signal processing module and displacement sensing
The signal that device, pressure transducer, humidity sensor gather connects, displacement transducer, pressure transducer, wet
Degree sensor each includes multiple passage, and multiple the treating of the most corresponding equipment to be collected of the plurality of passage is adopted
Collection amount, the signal processing method of signal processing module comprises the following steps:
1) harvester table is set up according to the address of each sensor at the lane database of data collecting system, described
Harvester table comprises the address information of all the sensors；
2) according to harvester table, scanning sensor obtains channel address and the channel number of each passage, according to
The channel address arrived and channel number, the most each sensor generates channel table, and described channel table all comprises phase
Channel address on induction sensor and channel number information；
3) according to all channel tables, data collecting system initializes a total acquisition tables, described total collection
Table is with amount to be collected as variable, and each amount to be collected is all corresponding with the channel address of respective channel and channel number；
4) XML format variable files is generated according to channel table, and by under each XML format variable files
Being dealt into the sensor of correspondence, each sensor is loaded into corresponding XML format variable files, described XML lattice
Formula variable files comprises channel address and the channel number information of passage；
5) each sensor is according to the information of corresponding XML format variable files, is gathered by respective channel
The data of equipment to be collected, sensor generates a point acquisition tables respectively according to collection value, in described point of acquisition tables
Each collection value is all corresponding with the channel address of respective channel and channel number；
6) it is dealt into data collecting system by unified for all points of acquisition tables, according to the channel address of each passage and logical
Taoist monastic name, inserts total acquisition tables by collection value；
7) timing scan passage obtains collection value, updates each point of acquisition tables, and then unification is dealt into data acquisition
System, updates total acquisition tables.
It is applicable to close-in seams water protection mining solid-liquid coupling analog simulation test dress the most as claimed in claim 4
Put, it is characterised in that described data collecting system is NI data collecting system, described point of acquisition tables and always adopting
Integrate tableau format to be provided with reside permanently process as CVT form, described data collecting system, read according to the time of setting
Take total acquisition tables, and be stored to the SQL SERVER value table of correspondence.
It is applicable to close-in seams water protection mining solid-liquid coupling analog simulation test dress the most as claimed in claim 1
Put, it is characterised in that described displacement transducer includes: tubulose displacement detector, resistive displacement are measured
Device, hydrostatic level, acceleration measurement device, vibration data processing means, temperature sensor, data
Harvester, wireless network module, data processing station, database server；
Tubulose displacement detector, resistive displacement measurement apparatus, hydrostatic level, acceleration measurement device,
Vibration data processing means, temperature sensor, data acquisition unit are by wireless module with data processing station even
Connecing, data processing station is connected with data server by wireless module.
It is applicable to close-in seams water protection mining solid-liquid coupling analog simulation test dress the most as claimed in claim 6
Put, it is characterised in that described tubulose displacement detector includes priming device, communicating pipe and sensor,
The two ends of communicating pipe are connected with priming device, and sensor fixed point was arranged on communicating pipe, sensor and data acquisition
Storage connects；
Tubulose displacement detector is provided with two monitoring criteria points, and datum mark is arranged on bank point or bridge
Dun Chu；
Resistive displacement measurement apparatus includes base and resistance scale, and base is arranged on bridge pier to be measured, resistance
Chi is arranged on base；
Displacement measuring device also includes solar panel, and solar panel is each structure of displacement measuring device
Device is become to power.
It is applicable to close-in seams water protection mining solid-liquid coupling analog simulation test dress the most as claimed in claim 1
Put, it is characterised in that described humidity sensor includes:
Flexible base board, uses flexible PCB material and PI material to make；
LC metal level, is arranged on the top of flexible base board, uses copper metal material to make；
Wet sensitive dielectric layer, is arranged on the top of LC metal level；
Paraffin-protected layer, is arranged on the top of wet sensitive dielectric layer, is used for being dielectrically separated from.
It is applicable to close-in seams water protection mining solid-liquid coupling analog simulation test dress the most as claimed in claim 8
To put, it is characterised in that the length of described flexible base board, width and thickness is respectively 46.5 × 31.5 ×
0.35mm；
The a length of 38.2mm of LC metal level, width is 23mm；
In LC metal level, the thickness of copper metal is 0.02mm, and interdigital capacitor C is 18 groups, interdigital a length of
20.9mm, interdigital width is 0.5mm, and interdigital spacing is 0.1mm, a length of 23mm of interdigital capacitor group,
Width is 13.2mm；
The a length of 7.6mm of Meander line inductor inner edge, a length of 23mm in outside, coil width is 0.5mm, coil
Spacing is 0.1mm, and the spacing of interdigital capacitor group and Meander line inductor is 2mm；
Wet sensitive dielectric layer is the thin film that wet sensitive PI material is made, and even application interdigital electricity in LC metal level
Between the copper metal layer of appearance group, the thickness of wet sensitive dielectric layer is 0.001mm；
Paraffin-protected layer is completely covered on the Meander line inductor part on LC metal level, and thickness is 0.1mm；
The dielectric constant of wet sensitive dielectric layer is 3.6.
It is applicable to the test of close-in seams water protection mining solid-liquid coupling analog simulation the most as claimed in claim 1
Device, it is characterised in that described horizontal well includes:
At least two mouthfuls of U-shaped wells, each U-shaped well includes straight well section and coordinates straight well, high-land residing for straight well section
In coordinating physical features residing for straight well；
At least a bite multi-branched horizontal well, every mouthful of multi-branched horizontal well is arranged in correspondence with at adjacent two mouthfuls of U-shaped wells
Between, every mouthful of multi-branched horizontal well include straight well section, the main borehole being connected with straight well section and with main borehole phase
The branch well hole connected and downwardly extend；
The branch well hole of every mouthful of multi-branched horizontal well extends to the U-shaped well being adjacent respectively, and with corresponding
U-shaped well directly connects or permeates connection.
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| CN105974087B (en) | 2017-11-28 |
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