CN109115982A - A kind of the coal seam excavating device and method of three-dimensional solid-liquid coupling analog simulation - Google Patents
A kind of the coal seam excavating device and method of three-dimensional solid-liquid coupling analog simulation Download PDFInfo
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- 238000009412 basement excavation Methods 0.000 claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 7
- 238000012806 monitoring device Methods 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 5
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- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000005065 mining Methods 0.000 claims description 4
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- 230000000717 retained effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 9
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 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
- G01N33/22—Fuels; Explosives
- G01N33/222—Solid fuels, e.g. coal
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Abstract
The present invention relates to the coal seam excavating devices and method of a kind of three-dimensional solid-liquid coupling analog simulation, belong to solid-liquid coupling analog simulation technical field, solves coal seam in existing simulation coal seam excavation method and excavate technical problem inaccurate, incomplete, complicated for operation or that simulator volume is big and at high cost.Including cabinet, water bag, water conduction hose；The box house is divided into overlying strata, simulation coal seam, lower stratum from top to bottom；The overlying strata and lower stratum are equipped with analog material, for simulating actual formation；The simulation coal seam is uniformly laid at least one described water bag, and the water outlet of the water bag is connected with described water conduction hose one end, and the water conduction hose other end is pierced by from the cabinet.The simulator and method simulate coal seam digging process Portable safety, economical rationality, while can guarantee that experimental result is accurate and reliable.
Description
Technical field
The present invention relates to solid-liquid coupling similarity simulation experiment technical field more particularly to a kind of similar moulds of three-dimensional solid-liquid coupling
Quasi- coal seam excavating device and method.
Background technique
Three-dimensional solid-liquid coupling similarity simulation experiment is by being laid with analog material in proportion in experimental box body, to practically
Layer structure carries out analogue simulation, and acquired results have researching value.
It is excavated in experiment in the coal seam of three-dimensional solid-liquid coupling analog simulation, it is the key point entirely tested that coal seam, which is excavated,.
In existing method, a kind of coal seam excavation method is artificially to be excavated to coal seam by device, but there are coal seams for this method
Excavate inaccurate, incomplete and complicated for operation problem.
It there are also a kind of coal seam excavation method is excavated using hydraulic device simulation coal seam, hydraulic device is placed on three-dimensional mould
In type.When simulating coal seam, hydraulic device is boosted；When simulating coal seam excavation, gradually by hydraulic device release.But it is this
Method that coal seam is excavated is simulated there are device, complicated for operation, the problems such as volume is big and at high cost.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of coal seam excavating device of three-dimensional solid-liquid coupling analog simulation and
Method excavates inaccurate, incomplete, complicated for operation or simulator to solve coal seam in existing simulation coal seam excavation method
The big and at high cost problem of volume.
The purpose of the present invention is mainly achieved through the following technical solutions:
On the one hand, a kind of coal seam excavating device of three-dimensional solid-liquid coupling analog simulation, including cabinet (1), water bag are provided
(2), water conduction hose (3)；The box house is divided into overlying strata (101), simulation coal seam (102), lower stratum from top to bottom
(103)；The overlying strata (101) and lower stratum (103) are equipped with analog material, for simulating actual formation；The simulation coal
Layer (102) is uniformly laid at least one described water bag (2), and the water outlet of the water bag is connected with the water conduction hose (3) one end,
Water conduction hose (3) other end is pierced by from the cabinet (1).
The present invention has the beneficial effect that: the device emulates coal seam digging process by using speciality water bag, easy to operate, just
Prompt safety, economical rationality, and can guarantee that experimental result is accurate and reliable.
On the basis of above scheme, the present invention has also done following improvement:
Further, water conduction hose (3) other end is connected with connection tube (4), is equipped with monitoring on the connection tube (4)
Equipment (5)；The monitoring device (5) is for monitoring water velocity.
Beneficial effect using above-mentioned further scheme is: observing the water flow stream of water bag outflow in real time by monitoring device
Amount, to obtain the coal seam a rate of advance information of simulation in real time；Monitoring device is arranged outside experimental box body simultaneously, convenient for experiment
Personnel check.
Further, it is also equipped on the connection tube flow control switch (6), for controlling water velocity.
Beneficial effect using above-mentioned further scheme is: adjusting water velocity by flow control switch, and then simulates
Different coal seam a rate of advance, it is convenient to operate, and controllability is strong, improves test accuracy；Flow control switch setting simultaneously exists
Outside experimental box body, it is easily installed and controls.
Further, the water bag (1), monitoring device (5), the quantity of flow control switch (6) are identical.
Beneficial effect using above-mentioned further scheme is: the coal seam sequence of excavation simulated as needed, is set by monitoring
Standby, flow control switch observation and the water velocity for controlling different water bags, are simulated.
Further, the water bag (2) is rectangular parallelepiped structure, and the specification of water bag (2) is according to similar proportion by practical coal-getter
Length, moon cyclic advance and the thickness in coal seam for making face determine that the quantity of water bag promotes length and the moon to recycle by real work face
Drilling depth determines.
Beneficial effect using above-mentioned further scheme is: water bag can save space using rectangular parallelepiped structure, facilitate water
Bag is paved with simulation coal seam.
Further, the cabinet (1) includes front panel, rear panel, left panel, right panel, the front panel, rear panel,
At least one in left panel, right panel uses glass steel material.
Beneficial effect using above-mentioned further scheme is: experimenter can be observed real to cabinet class by glass epoxy
It tests process and phenomenon is observed and recorded.
Further, the cabinet (1) further includes bottom panel, and each panel forms cuboid, and each panel junction pass through it is close
Strip of paper used for sealing is sealed.
Beneficial effect using above-mentioned further scheme is: the cabinet of different proportion can be mounted to according to experiment demand,
Simple to operation, realization recycles, while ensuring box sealing by sealing strip.
Further, the monitoring device (3) is built-in with flow sensor, obtains flow rate of liquid in real time, and by flow speed data
It is transferred to external data receiver.
Beneficial effect using above-mentioned further scheme is: facilitating testing crew accurately to obtain flow rate information in real time, keeps away
Bring error interference when having exempted from artificially to check flowmeter, improves test accuracy.
Further, the box house surrounding is provided with simulation coal column (104), retains in the process for simulating practical coal mining
The coal column to shield.
On the other hand, a kind of coal seam excavation method of three-dimensional solid-liquid coupling analog simulation is provided, comprising the following steps:
Step S1, according to similar proportion installation casing (1)；In cabinet (1), inside circumference is uniformly laid with equivalent material simulating
Coal column (104)；
Step S2, it chooses analog material and is laid with lower stratum (103), and keep the stratum being laid with straight；
Step S3, the water bag (2) for storing up full water is uniformly laid on to the top of lower stratum (3), for simulating coal seam (102),
And it is pierced by water conduction hose (3) by the hole on cabinet (1)；
Step S4, one end that water conduction hose (3) is pierced by cabinet is connected to connection tube (4)；And by connection tube (4), monitoring
Equipment (5) and flow control switch (6) connect, and flow control switch (6) is kept to close；
Step S5, according to the principle of similitude, it is laid with analog material above water bag (2), simulates overlying strata (101)；
Step S6, according to coal seam sequence of excavation, successively the water in water bag (2) is released using flow control switch (6), together
When observe monitoring device (5), using flow control switch (6) control flow, to simulate different coal seam a rate of advance.
The present invention has the beneficial effect that: this method emulates coal seam digging process by using speciality water bag, easy to operate, just
Prompt safety, economical rationality, and can guarantee that experimental result is accurate and reliable.
It in the present invention, can also be combined with each other between above-mentioned each technical solution, to realize more preferred assembled schemes.This
Other feature and advantage of invention will illustrate in the following description, also, certain advantages can become from specification it is aobvious and
It is clear to, or understand through the implementation of the invention.The objectives and other advantages of the invention can by specification, claims with
And it is achieved and obtained in specifically noted content in attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is the coal seam excavating device structure chart of three-dimensional solid-liquid coupling analog simulation described in the embodiment of the present invention；
Fig. 2 is the coal seam excavating device main view of three-dimensional solid-liquid coupling analog simulation described in the embodiment of the present invention；
Fig. 3 is the part of the coal seam excavating device main view of three-dimensional solid-liquid coupling analog simulation described in the embodiment of the present invention
Enlarged drawing；
Fig. 4 is the coal seam excavating device left view of three-dimensional solid-liquid coupling analog simulation described in the embodiment of the present invention；
Fig. 5 is the part of the coal seam excavating device left view of three-dimensional solid-liquid coupling analog simulation described in the embodiment of the present invention
Enlarged drawing；
Fig. 6 is the coal seam excavating device top view of three-dimensional solid-liquid coupling analog simulation described in the embodiment of the present invention；
Fig. 7 is the part of the coal seam excavating device top view of three-dimensional solid-liquid coupling analog simulation described in the embodiment of the present invention
Enlarged drawing；
Fig. 8 is water bag and monitoring device, flow control switch connection in coal seam excavating device described in the embodiment of the present invention
Relation schematic diagram；
Fig. 9 is the coal seam excavation method flow chart of three-dimensional solid-liquid coupling analog simulation described in the embodiment of the present invention.
Appended drawing reference:
Stratum, 104- simulate coal column, 2- water bag, 3- water guide under 1- cabinet, 101- overlying strata, 102- simulation coal seam, 103-
Hose, 4- connection tube, 5- monitoring device, 6- flow control switch.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention, it is not intended to limit the scope of the present invention.
Embodiment 1 discloses a kind of coal seam excavating device of three-dimensional solid-liquid coupling analog simulation, comprising: including cabinet 1,
Water bag 2, water conduction hose 3；Box house is divided into overlying strata 101, simulation coal seam 102, lower stratum 103 from top to bottom；Overlying strata 101
It is equipped with analog material with lower stratum 103, for simulating actual formation；Simulation coal seam is uniformly laid at least one described water bag,
The water outlet of the water bag is connected with described water conduction hose one end, and the water conduction hose other end is pierced by from the cabinet.
When implementation, it is laid with cabinet using analog material and water-filled water bag, practical coal seam and stratum is simulated, passes through water guide
Hose successively releases the water in water bag, simulates different coal seam sequence of excavation and speed.
Compared with prior art, the coal seam excavating device of three-dimensional solid-liquid coupling analog simulation provided in this embodiment, passes through
Coal seam digging process, easy to operate, Portable safety, economical rationality are emulated using speciality water bag, and can guarantee that experimental result is accurate
Reliably.
In order to preferably be monitored and controlled water velocity, test accuracy is improved, which further includes that connection tube 4, monitoring are set
Standby 5, flow control switch 6 (preferred, valve)；Monitoring device, flow control switch are installed on connection tube, water conduction hose
It is connected with connection tube.Valve is the control unit in liquid conveying system, has cut-off, adjusting, water conservancy diversion, prevents the function such as adverse current
Can, it is arranged outside experiment casing, precisely adjusts flow rate of liquid to realize, improve test accuracy；Flow velocity can also be selected to adjust
Device replaces valve, can reach identical effect.
It should be noted that portion outside the enclosure is arranged in monitoring device, controlled convenient for experimental implementation.It preferably, can be liquid
Flowmeter body；Fluid flowmeter is the instrument of real-time display flow rate of liquid, is divided into instrument board and piping connection part；Monitoring device
The flowmeter that built-in sensors element can also be selected, is mounted on liquid line, is shown by data sink real-time reception
Flow rate of liquid data, facilitate testing crew accurately to obtain flow rate information in real time, avoid and check that monitoring device bring is artificial
Error interference improves test accuracy and operation ease.
Cabinet includes: bottom panel, front panel, rear panel, left panel, right side version；It is rectangular that each panel removably surrounds one
Body structure, and each panel junction is sealed by sealing strip or glue spraying.
For the more true practical coal seam surrounding enviroment of simulation, it can also be close to each side panel at box house and be laid with
The simulation coal column 104 of certain thickness (preferred, with a thickness of 100mm), for simulating the protection retained during practical coal mining
The coal column of effect.
Cabinet can need to install top panel or installation hydraulic device, during the experiment, liquid according to specific experiments
Pressure device can apply pressure to water bag, so that the outflow that the water in water bag is full and uniform.
It is emphasized that being transferred to simulation ground for the ease of water flow discharge and water flow in water bag during observation experiment
Layer the case where, front panel, rear panel, left panel, the right side version at least one use glass steel material；Experimenter can pass through
Glass epoxy is observed and is recorded to experimentation in cabinet and phenomenon.Remaining panel selects steel plate, improves the resistance to compression of device
Ability.
In specific experiment, the specification of experimental box body can be selected according to similar proportion, is installed, it is preferred that cabinet
Inner length is 1800mm, and the inner width of cabinet is 1000mm.
Preferably, water bag chooses pressure-resistant water bag, and cuboid knot is made using materials such as rubber nylon cloth, high density polyethylene (HDPE)s
Structure.It being flowed out convenient for the water flow after compression of water bag, while rectangular parallelepiped structure can save space, Convenient water pocket is paved with simulation layer,
Preferably, it is laid with along cabinet length direction.The specification (length × width × height) of water bag is according to similar proportion by practical coal working face
Length, moon cyclic advance and the thickness in coal seam determine (trial scale that similar proportion is simulated formation structure), the number of water bag
Amount promotes length and moon cyclic advance to determine by real work face.
In view of the connectivity problem of the water conduction hose of connection tube and box house outside cabinet, in the side panel of cabinet
(preferred, front panel) is uniformly provided with several holes, so that water conduction hose is connected by hole with connection tube.Preferably, may be used
The hole that a row equidistantly arranges, the quantity and the quantity phase of water bag of hole is arranged in the water-bearing layer region exterior of side panel
Together.
In order to meet the needs of different simulated experiments, different water are observed and controlled by monitoring device and flow control switch
The water velocity of bag.Water bag, monitoring device, the quantity of flow control switch is identical, so as to realize successively to different water bags into
Row control.
Embodiment 2 discloses a kind of coal seam excavation method of three-dimensional solid-liquid coupling analog simulation, comprising the following steps:
Step S1, according to similar proportion installation casing 1；Equivalent material simulating coal column is uniformly laid in box house surrounding
104；
Step S2, it chooses analog material and is laid with lower stratum 103, and keep the stratum being laid with straight；
Step S3, the water bag for storing up full water is uniformly laid on to the top on lower stratum 3, for simulating coal seam 102, and makes water guide
Hose is pierced by by the hole on cabinet；
Step S4, one end that water conduction hose is pierced by cabinet is connected to connection tube；And it by connection tube 4, monitoring device 5 and flows
Amount control switch 6 connects, and flow control switch is kept to close；
Step S5, according to the principle of similitude, it is laid with analog material above water bag, simulates overlying strata 101；
Step S6, according to coal seam sequence of excavation, successively the water in water bag is released using flow control switch, is observed simultaneously
Monitoring device controls flow using flow control switch, to simulate different coal seam a rate of advance.
Compared with prior art, the coal seam excavation method of three-dimensional solid-liquid coupling analog simulation provided in this embodiment；Pass through
The analogue simulation that coal seam is excavated is completed using speciality water bag, and has easy to operate, economical rationality, experimental result reliably special
Point.
Specifically, in step sl, experimenter according to actual needs simulation formation parameter, according to similar proportion,
The volume of cabinet is calculated, and is assembled, while according to the principle of similitude, choosing analog material and being laid on cabinet surrounding, simulating
Coal column simulates the analog material of coal column, and barite, quartz sand and mica powder may be selected in aggregate, and lime may be selected in cement
Stone and gypsum, borax can be used as analog material coagulant；According to the lithologic character in practical coal seam, physical property (including pressure resistance
Degree, bulk density etc.) etc., aggregate and cement are mixed by certain proportion to simulate protection coal pillar；Preferably, coal column thickness
For 100mm.
It should be noted that similar material simulation experiment principle is using material similar with natural stratum physico-mechanical properties
Material, a kind of test method of corresponding purpose research is carried out by certain geometric similarity constant contraction at test model.Analog material
Including aggregate and cement two parts, aggregate: sand, iron powder, blanc fixe, aluminium powder, mica powder etc..Cement: cement, gypsum,
Lime, calcium carbonate (chalky soil can match silver), kaolin, paraffin, waterglass etc..In same similarity simulation experiment, can be used
The aggregate and cement chosen are simulated, only need to be according to rock (coal) based on the difference between rock stratum and rock stratum, rock stratum and coal seam
Lithologic character, the physical property (including compression strength, bulk density etc.) etc. of layer are simulated according to certain proportion mixing.
In step s 2, it according to strata condition below practical coal seam, chooses analog material and is laid with lower stratum, simulate lower stratum
Analog material, aggregate may be selected barite, quartz sand and mica powder, and lime stone and gypsum, borax may be selected in cement
It can be used as analog material coagulant；(including compression strength, held according to the lithologic character, physical property on stratum below practical coal seam
Again etc.) etc., aggregate and cement are mixed by certain proportion to simulate lower stratum, and keep the stratum being laid with straight.
In step s3, the water bag for storing up full water is laid on to the top on lower stratum along cabinet length direction, is paved with simulation coal
Layer, the specification (length × width × height) of water bag is according to similar proportion by the length in real work face, the thickness of moon cyclic advance and coal seam
Degree determines (trial scale that similar proportion is simulated formation structure) that the quantity of water bag is promoted length by real work face and followed the moon
Ring drilling depth determines.Water conduction hose is pierced by by the preset hole of cabinet, so as to the connection tube outside connecting box body.
In step s 4, connection tube is connected with one end that water conduction hose is pierced by cabinet, at the same connection tube, monitoring device,
Flow control switch three connection, flow control switch are in close state.
In step s 5, the stratum above coal seam simulated according to actual needs selects analog material, and is paved in water bag
The Shangdi layer region of top.The simulation material of Shangdi layer region can be identical as above-mentioned lower stratum, can also be different, with specific reference to
Strata condition (lithologic character, physical property etc.) is simulated up and down in practical coal seam, it is preferred that selection identical phase with lower stratum
It is simulated like material and identical proportion, is uniformly paved with Shangdi layer region, and keep the stratum being laid with straight.
In step s 6, the coal seam sequence of excavation that testing crew is simulated according to actual needs passes through control and different water bags
Water in corresponding water bag is released, at the same time, observes the data on flows of monitoring device by connected flow control switch, is adjusted
Flow control switch, to simulate different coal seam a rate of advance.
It is emphasized that the water flow release interval time of different water bags can be simulated according to the actual situation.Meanwhile also
It can recorde the time that water in water bag all flows out, converted by similar proportion, thus when simulating practical seam mining
Between.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of coal seam Excavation simulation device of three-dimensional solid-liquid coupling analog simulation, which is characterized in that including cabinet (1), water bag
(2), water conduction hose (3)；The box house is divided into overlying strata (101), simulation coal seam (102), lower stratum from top to bottom
(103)；The overlying strata (101) and lower stratum (103) are equipped with analog material, for simulating actual formation；The simulation coal
Layer (102) is uniformly laid at least one described water bag (2), and the water outlet of the water bag is connected with the water conduction hose (3) one end,
Water conduction hose (3) other end is pierced by from the cabinet (1).
2. the apparatus according to claim 1, which is characterized in that water conduction hose (3) other end and connection tube (4) phase
Even, monitoring device (5) are installed on the connection tube (4)；The monitoring device (5) is for monitoring water velocity.
3. the apparatus of claim 2, which is characterized in that be also equipped with flow control switch on the connection tube (4)
(6), for controlling water velocity.
4. device according to claim 3, which is characterized in that the water bag (1), monitoring device (5), flow control switch
(6) quantity is identical.
5. device according to claim 4, which is characterized in that the water bag (2) is rectangular parallelepiped structure, the rule of water bag (2)
Lattice determine according to similar proportion by the length of practical coal working face, moon cyclic advance and the thickness in coal seam, the quantity of water bag by
Real work face promotes length and moon cyclic advance to determine.
6. device according to claim 5, which is characterized in that the cabinet (1) include front panel, rear panel, left panel,
Right panel, the front panel, rear panel, left panel, at least one in right panel use glass steel material.
7. device according to claim 6, which is characterized in that the cabinet (1) further includes bottom panel, each panel group growth
Cube, and each panel junction is sealed by sealing strip.
8. device according to claim 7, which is characterized in that the monitoring device (3) is built-in with flow sensor, in real time
Flow rate of liquid is obtained, and flow speed data is transferred to external data receiver.
9. device according to claim 8, which is characterized in that the box house surrounding is provided with simulation coal column (104),
For simulating the coal column to shield retained during practical coal mining.
10. a kind of coal seam for carrying out three-dimensional solid-liquid coupling analog simulation using the described in any item devices of claim 3-9 is excavated
Method, which comprises the following steps:
Step S1, according to similar proportion installation casing (1)；In cabinet (1), inside circumference is uniformly laid with equivalent material simulating coal column
(104)；
Step S2, it chooses analog material and is laid with lower stratum (103), and keep the stratum being laid with straight；
Step S3, the water bag for storing up full water is uniformly laid on to the top of lower stratum (3), for simulating coal seam (102), and makes water guide
Hose (3) is pierced by by the hole on cabinet (1)；
Step S4, one end that water conduction hose (3) is pierced by cabinet (1) is connected to connection tube (4)；And connection tube (4), monitoring are set
Standby (5) and flow control switch (6) connect, and flow control switch (6) is kept to close；
Step S5, according to the principle of similitude, it is laid with analog material above water bag (2), simulates overlying strata (101)；
Step S6, according to coal seam sequence of excavation, successively the water in water bag (2) is released using flow control switch (6), is seen simultaneously
It surveys monitoring device (5), flow is controlled using flow control switch (6), to simulate different coal seam a rate of advance.
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