CN106442209A - Fractured rock mass water inrush and sand inrush simulation experiment device capable of continuously supplying water and sand - Google Patents
Fractured rock mass water inrush and sand inrush simulation experiment device capable of continuously supplying water and sand Download PDFInfo
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- CN106442209A CN106442209A CN201610967688.XA CN201610967688A CN106442209A CN 106442209 A CN106442209 A CN 106442209A CN 201610967688 A CN201610967688 A CN 201610967688A CN 106442209 A CN106442209 A CN 106442209A
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- 239000004576 sand Substances 0.000 title claims abstract description 210
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 239000011435 rock Substances 0.000 title claims abstract description 95
- 238000004088 simulation Methods 0.000 title abstract description 5
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 238000011049 filling Methods 0.000 claims description 56
- 230000008595 infiltration Effects 0.000 claims description 52
- 238000001764 infiltration Methods 0.000 claims description 52
- 238000002474 experimental method Methods 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 19
- 239000008400 supply water Substances 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- 239000012466 permeate Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 239000012530 fluid Substances 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 description 14
- 239000003245 coal Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000000476 body water Anatomy 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000003756 stirring Methods 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
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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Abstract
The invention relates to a fractured rock mass water inrush and sand inrush simulation experiment device capable of continuously supplying water and sand. The device is characterized in that water is quantitatively added from a top base by virtue of a water flow supplying and measuring device, sand is continuously supplied by virtue of two sand injection pipes at the side part above a permeation main cylinder, the water and the sand are mixed, then enter fractured rock mass via a porous water permeable plate, then enter a piston and then are discharged, collected and measured, the porous water permeable plate, a pressure bearing circular ring and the top base are arranged above the fractured rock mass, the piston is arranged below the fractured rock mass, equipment is mounted on a press, under the action of the press, the piston moves, and the fractured rock mass can be compressed to designated porosity (described in the specification) or a specified axial force can be applied to the fractured rock mass. The device provided by the invention can continuously supply sand during a test, can simulate the condition of seepage of a water-sand mixed fluid formed by a large number of sand grains under the action of water flow in the fractured rock mass and can improve test accuracy and test effect.
Description
Technical field
The sand calamity the present invention relates to a kind of gushing water running into for western part of China shallow overburden, thin bedrock, thick drift-sand mining area is burst
The experiment simulator of evil problem, the husky fragmented rock body gushing water routed sand analogue experiment installation of especially a kind of sustainable supply water,
It is applied to the research of the solid two-phase flow body Seepage problems of stream.
Background technology
With gradually decreasing of east China coal resource, Coal Resource Development center of gravity is progressively turned by country to western
Move, the extensive reasonable development of western coal resource be ensure China's long-term energy supply in the urgent need to.China is western mostly
It is the water resources shortage area of arid and semi-arid, in below 400mm, mankind's activity is easily suffered in ecological environment to average annual precipitation
Destruction.And, mine of western coal seam on sand coated iron mold, totally have that coal seam buried depth is shallow, basement rock than relatively thin, overlying thick aeolian accumulation
The feature of sand, in underground mining mineral resources, crack or craven fault turn on rich water and because the reasons such as air slaking lose shear resistance
Sand（Husky）Body, sand（Husky）The original balance of body is broken, and under gravity, water sand drift accelerates under access wall, until flooding well, that is, sends out
The routed sand of life face roof gushing water, the routed sand disaster of the gushing water frequently occurring, have a strong impact on safety of coal mines, destroyed environment, made
Become huge economic loss.
The feature adopting the gushing water sand inrush disaster of fragmented rock body is as follows：（1）Adopt fragmented rock body and there is larger porosity,
Seepage coefficient is larger；（2）Adopt fragmented rock body and there is spatial networks hole framework, pore shape is complicated, different sizes；（3）Broken
In detritus body, the seepage characteristic of monophasic fluid is relevant with fragmented rock body porosity, and when the grains of sand are migrated wherein, is tied by hole
The impact of structure is larger；（4）When the only grains of sand are in the case of without water, the grains of sand almost cannot pass through fragmented rock body.（5）
When water sand fluid-mixing is migrated in fragmented rock body, water is to think to pass through fragmented rock body completely, yet with fragmented rock body endoporus
Gap structure is spatial network pore structure, has certain filtration, iris action to the grains of sand, flows out the grains of sand quality of fragmented rock body
Will be generally less than the grains of sand quality flowing into fragmented rock body.
Carry out in this context adopting fragmented rock body non linear fluid flow through porous medium and water sand two phase flow Seepage Experiment research, analysis is adopted
The Penetration Signature of fragmented rock body, the gushing water routed sand formation mechenism of passage and the dynamic characteristic of non linear fluid flow through porous medium, provide seepage flow
INSTABILITY CRITERION, is preventing and treating mine of western high tension coal mining gushing water sand inrush disaster and protection is provided fundamental basis.
It is as follows that the technical problem of existing correlation test device, method and its presence is not enough：
1. a kind of fragmented rock body water sand seepage flow experiment system disclosed in Chinese patent CN201610335382.2, including：Water is husky mixed
Attach together put, fragmented rock body experimental provision, rock mass charging assembly data harvester；This simple system is reasonable, assembling user
Just, good seal performance, can reflect fragmented rock body gushing water burst sand in the case of water sand mixture seepage discharge.
2. the routed sand of a kind of gushing water disclosed in Chinese patent CN201610483297.0 analogue experiment installation.This device includes reality
Tryoff, the first steel plate, the first motion steel plate and the first controlling organization；Realize controlling by the quantity of motion controlling the first motion steel plate
Seepage channel processed completely closes to the unlatching size fully opening arbitrarily regulation seepage channel in the range of this；This device facilitates
Laboratory technician is simulated to different size of seepage flow feelings.
Although above-mentioned two patent all solves specific problem, still there is limitation.They are all by the grains of sand
It is preset in the inner core of fixed volume or the cavity of proof box, is limited by the intrinsic size of cavity volume, the quantity of the grains of sand is limited
System, cannot persistently give husky it is difficult to simulate the husky fluid-mixing of water that a large amount of grains of sand are formed under flow action in kata-rocks in test
The situation of seepage flow in body.
Disclosed in particularly CN201610335382.2, a kind of fragmented rock body water sand seepage flow experiment system, supplies from system side
The husky fluid-mixing of feedwater.Water filling port area distributions are excessive, irregular with the geometry of fluid issuing line, perpendicular to equivalent stream
It is not equal everywhere to area of section, flow velocity differs it is difficult to be solved percolation path everywhere.And when water conservancy diversion bore is too small
When, the penetrating fluid capacity of flow-guiding mouth is less than fragmented rock body.Surveyed data can not reflect fragmented rock body seepage characteristic again, at this moment affects
Final permeability be no longer fragmented rock body Penetration Signature, research direction is just substantial to become crack rock, leads to
Test failure.
Secondly, water sand is to enter rock mass from the sidepiece of cylinder to carry out seepage tests, according to the gushing water adopting fragmented rock body
The feature of sand inrush disaster and top-down water sand flow event are visible, and husky cannot the simulation from sidepiece entrance of water really crushes
Penetration Signature, the formation mechenism of gushing water routed sand passage and the non linear fluid flow through porous medium of adopting fragmented rock body when rock mass gushing water bursts husky
Dynamic characteristic；Above-mentioned 2 points of unreasonable parts all will lead to test failure.
Furthermore, a kind of routed sand analogue experiment installation of gushing water disclosed in CN201610483297.0, is by upper and lower flow-guiding mouth
Staggered size obtaining different water（Husky）Flow, to there is shortcoming identical with CN201610335382.2 patent, when leading
When head piece footpath is too small, the penetrating fluid capacity of flow-guiding mouth is less than fragmented rock body.Surveyed data can not reflect that fragmented rock body seepage flow is special again
Property.At this moment affect final permeability is no longer the Penetration Signature of fragmented rock body, and research direction just split by substantial becoming
Gap rock mass, leads to test failure.
3. a kind of test dress for fractured rock water sand two phase fluid flow disclosed in Chinese patent CN201610203660.9
Put, it includes sustainable multipath sanding device, sustainable multipath sanding device includes one plus sand main line, a plurality of sand that adds are propped up
Road and multiple plus sand mouth；A plurality of plus sand branch circuit parallel connection simultaneously converges at plus sand main line, plus sand main line near permeameter part with
Permeameter connects, plus sand main line is provided with the 4th stop valve away from the part of permeameter, and every adds sand branch road and is provided with one
Plus sand stop valve, every is added sand branch road and is respectively connected with one plus sand mouth；Above-mentioned plus sand branch road include first plus sand branch road, second plus
Sand branch road and Acanthopanan trifoliatus (L.) Merr. sand branch road, plus sand mouth includes first plus sand mouth and second plus sand mouth；First adds sand mouth is arranged at automatic adding
On sand device and on first plus sand branch road, automatic sand feeding device is the first vibrosieve；Second adds sand branch road and Acanthopanan trifoliatus (L.) Merr. sand
Branch road is all connected with second plus sand mouth.
Above-mentioned sustainable multipath sanding device is hydraulic control, complex structure, and fault rate is high, and maintenance cost is high, sand
Enter permeameter with water respectively from above and below, Combination difference is it is difficult to obtain uniform water sand fluid, concentration estimation error is relatively
Greatly, simulation validity is not good, and test effect is poor.
Content of the invention
Husky in order to overcome the shortcomings of that existing equipment can not persistently supply, the present invention provides a kind of sustainable supply water husky crushing
Rock mass gushing water routed sand analogue experiment installation, this experimental provision in test persistently gives sand, can simulate a large amount of grains of sand and make in current
With the situation of water sand fluid-mixing seepage flow in fragmented rock body of lower formation, experimental accuracy and test effect can be improved.
The present invention solves its technical problem and employed technical scheme comprise that：A kind of husky fragmented rock body gushing water of sustainable supply water
Routed sand analogue experiment installation, is mainly made up of footstock, infiltration master cylinder cylinder and piston, and infiltration master cylinder cylinder is annular sleeve, footstock
It is located at the upper and lower ends of infiltration master cylinder cylinder with piston respectively, infiltration master cylinder cylinder is connected on footstock, and piston is arranged on infiltration master cylinder
There is inside the internal described footstock in the lower end of cylinder the passage that adds water, the water inlet of the passage that adds water is located at footstock outside and connects water
For giving measurement apparatus, the outlet of the passage that adds water is located at the centre of footstock and Open Side Down leads to infiltration master cylinder cylinder for stream；
From top to bottom it is respectively equipped with pressure-bearing annulus, porous permeable plate and fragmented rock body inside described infiltration master cylinder cylinder, pressure-bearing annulus, many
Hole porous disc is connected up and down with fragmented rock body and all against permeating main inner wall of cylinder setting, fragmented rock body is connected with piston downwards again
Touch, infiltration master cylinder cylinder has two sand filling tube roads near the position of upper port, and two sand filling tube roads are symmetrical in outlet both sides cloth
Put, sand filling tube road along infiltration master cylinder cylinder be inserted radially into and stretch near infiltration master cylinder cylinder center position, sand filling tube road go out sand
Downwards, the sand inlet in sand filling tube road is being externally connected to controllable direct current push rod motor, controllable direct current push rod motor for mouth bending
The note sand push pedal connecting is close to sand filling tube road inwall and is installed, in infiltration master cylinder between controllable direct current push rod motor and sand outlet
Cylinder is outside to be provided with sand filling tube road valve；Described porous permeable plate is the permeable plectane of porous, and the aperture in hole is far longer than thereon
The mean diameter of drift-sand, is slightly less than the particle diameter of the fragmented rock body of test simultaneously；The top of described piston is machined with multiple holes
Hole, the aperture of hole is far longer than the mean diameter of drift-sand, is slightly less than the particle diameter of the fragmented rock body of test simultaneously, and piston has
There is hollow cavity, piston is offering the husky outlet of several water on the outer wall of bottom.
Compared to existing technology, the husky fragmented rock body gushing water routed sand simulation experiment dress of a kind of sustainable supply water of the present invention
Put, its footstock from top adds water toward in infiltration master cylinder cylinder, and above the infiltration master cylinder cylinder below footstock, sidepiece passes through sand filling tube
Road note is husky, and water and sand are all introduced in the cavity of pressure-bearing annulus and mix, the filling direction of water and sand in vertical space and
Horizontal space is all interspersed, water sand good mixing effect, because water inlet connects current for giving measurement apparatus, can measure added
The flow velocity of water and consumption, and sand filling tube road can be controlled by controllable direct current push rod motor injection sand addition and
Injection rate, thus can simulate different water sand ratios and the routed sand situation of flow velocity, and fragmented rock body is positioned over infiltration master cylinder cylinder simultaneously
Middle and lower part, is between porous permeable plate and piston, fragmented rock body is compressed under the direct effect of porous permeable plate and piston
To specific porosity, thus simulating the fragmented rock body of different conditions；Particularly, in experiment in addition to sand outlet, note is husky
Everywhere the closing elsewhere of pipeline, sand outlet bending in sand filling tube road downwards, makes the current will not by the effect of air pressure and gravity
It is back to sand filling tube road from sand outlet, sand filling tube road has two, can use in turn, that used by not sand filling tube road is not permissible
Closed using sand filling tube road valve, then this sand filling tube road carries out the grains of sand and is refilled by, simultaneously another sand filling tube
Start working in road, two sand filling tube roads use in turn, to ensure, for husky seriality, to simulate a large amount of grains of sand in flow action
The situation of water sand fluid-mixing seepage flow in fragmented rock body of lower formation, substantially increases experimental accuracy and test effect；Connect
, water sand mixture enters fragmented rock body through porous permeable plate from pressure-bearing annulus, then discharges collection through piston, thus may be used
With the quality of experiment with measuring Hou Shui and Sha respectively, compared by the quality husky with above injecting water, draw and stay damaged rock
In body, the husky quality of water, finally reaches a conclusion, and is the prediction of mine of western high tension coal mining gushing water sand inrush disaster and protection offer reason
By basis；Multiple holes on porous permeable plate therein and piston, because the diameter of hole and hole is far longer than drift-sand
Mean diameter, simultaneously be slightly less than test fragmented rock body particle diameter, it is possible to only permeable sand and do not allow fragmented rock body pass through,
Water sand mixture can also be made more uniform, ensured the true, efficient, accurate of experiment.
Brief description
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of one embodiment of the invention.
In figure, 1, add water passage, 2, bolt, 3, water inlet, 4, current for giving measurement apparatus, 5, sand filling tube road, 6, note
Husky push pedal, 7, sand filling tube road valve, 8, pressure-bearing annulus, 9, A space, 10, B space, 11, porous permeable plate, 12, infiltration master cylinder
Cylinder, 13, hollow cavity, 14, the husky outlet of water, 15, groove, 16, water sand collection tray, 17, water collection port, 18, flange, 19, live
Plug, 20, hole, 21, fragmented rock body, 22, hole, 23, impeller bracket, 24, impeller, 25, sand outlet, 26, controllable direct current push rod
Motor, 27, outlet, 28, footstock.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of not making creative work, broadly falls into protection scope of the present invention.
Fig. 1 shows the structural representation of one preferred embodiment of the present invention, and one of figure sustainable supply water is husky
Fragmented rock body gushing water burst sand analogue experiment installation, mainly by footstock 28, infiltration master cylinder cylinder 12 and piston 19 constitute, permeate master cylinder
Cylinder 12 is annular sleeve, and footstock 28 and piston 19 are located at the upper and lower ends of infiltration master cylinder cylinder 12 respectively, and infiltration master cylinder cylinder 12 is solid
It is connected on footstock 28, the fixing mechanism between infiltration master cylinder cylinder 12 and footstock 28 can be for example in described infiltration master cylinder cylinder 12
Upper end is provided with connection boss, connects boss and footstock 28 is all evenly equipped with several connecting holes, by bolt 2 on relevant position
Master cylinder cylinder 12 will be permeated in connection hole to be connected with footstock 28, piston 19 is arranged on inside the lower end of infiltration master cylinder cylinder 12, in order to
Improve the required obturation effect of infiltration Master cylinder body experiment, can on the footstock 28 of described footstock 28 and infiltration master cylinder junction also
It is machined with toroidal cavity, wherein put into O-shaped rubber ring, sealed by O-shaped rubber ring between footstock 28 and infiltration master cylinder cylinder 12
Connect.
There is inside footstock 28 described in the present embodiment the passage 1 that adds water, the water inlet 3 of the passage 1 that adds water is located at footstock
28 outsides simultaneously connect current for giving measurement apparatus 4, and the outlet 27 of the passage 1 that adds water is located at centre the opening of footstock 28
Lead down to permeate master cylinder cylinder 12；Current generally include pump machine, effusion meter and pressure transducer for giving measurement apparatus 4, use
Pump machine provides the current with certain pressure, measures the usage amount of water outlet and the big of pressure by effusion meter and pressure transducer
Little.Preferably, the outlet 27 of the described passage 1 that adds water is multiple, and outlet 27 is outwards uniformly right by the centre of footstock 28
Claim arrangement, outlet 27 is located at the top of sand inlet, the line of outlet 27 and sand inlet line vertical interlaced.When outlet 27
When quantity is more, advantageously reduce the loss of hydraulic pressure, but the quantity of outlet 27 of the passage 1 that adds water and particular location interval are permissible
Set according to practical situation choosing.
From top to bottom it is respectively equipped with pressure-bearing annulus 8, porous permeable plate 11 inside infiltration master cylinder cylinder 12 in embodiment and break
Detritus body 21, pressure-bearing annulus 8, porous permeable plate 11 are connected about 21 with fragmented rock body and all set against infiltration master cylinder cylinder 12 inwall
Put, fragmented rock body 21 is contacted with piston 19 downwards again, infiltration master cylinder cylinder 12 has two sand filling tubes near the position of upper port
Road 5, two sand filling tube roads 5 are symmetrical in outlet 27 both sides arrangement, and sand filling tube road 5 is inserted radially into and stretches to along infiltration master cylinder cylinder 12
Near the position at infiltration master cylinder cylinder 12 center, the sand outlet 25 in sand filling tube road 5 bends downwards, and the sand inlet in sand filling tube road 5 is outside
Portion is connected with controllable direct current push rod motor 26, and sand filling tube road 5 is close in the note sand push pedal 6 that controllable direct current push rod motor 26 connects
Inwall is installed, and is provided with sand filling tube road between controllable direct current push rod motor 26 and sand outlet 25 outside infiltration master cylinder cylinder 12
Valve 7；Control amount and the speed of injection sand by controllable direct current push rod motor 26, and two sand filling tube roads 5 are respectively
Use, after a sand filling tube road 5 completes note sand, can be immediately husky by another sand filling tube road 5 note, so it is achieved that continuous note
Sand, makes experiment can be carried out continuously, and sand filling tube road 5 is not carry out noting husky not use state, closing note using process
Then husky for note push pedal 6 side is disassembled, fills out sand from this port to the inside by husky pipeline valve 7, fill out sand finish controllable is straight
Stream push-rod electric machine 26 and the husky push pedal 6 of note are arranged on sand inlet, and sand is stored in the pipe between sand filling tube road valve and the husky push pedal 6 of note
In road, the length for storing this section of pipeline of sand can make according to actual needs, needs note Sha Shizai to open sand filling tube
Road valve 7, drives the husky push pedal 6 of note that by sand outlet 25, the grains of sand are injected infiltration master cylinder cylinder by controllable direct current push rod motor 26
12；It can be seen that, in experiment in addition to sand outlet 25, everywhere closing elsewhere of sand filling tube road 5, in the husky experiment of note, note husky
The air pressure of pipeline 5 can be more than the air pressure of infiltration master cylinder cylinder 12 always, so the water in infiltration master cylinder cylinder 12 will not be back to note
Sand tube road 5, even if in not use state, closing also first can be tightened sand filling tube road valve 7 in sand filling tube road 5, so sand filling tube road 5
The air pressure of the inside still can be more than the air pressure of infiltration master cylinder cylinder 12, and same water also will not flow back, so the work in air pressure and gravity
With under, current will not be back to sand filling tube road 5 from sand outlet 25, has ensured high-quality effectively carrying out of experiment well.
Porous permeable plate described in embodiment 11 is the permeable plectane of porous, and the aperture in hole 22 is far longer than drift-sand thereon
Mean diameter, simultaneously be slightly less than test fragmented rock body 21 particle diameter；The aperture design of porous permeable plate 11 ensure that
Porous permeable plate 11 can freely penetrating current and the grains of sand, and fragmented rock body 21 can not be made to pass through；And porous permeable plate 11
Design can also make the husky fluid-mixing of water become more uniform after flowing through porous permeable plate 11；Above porous permeable plate 11
Connect pressure-bearing annulus 8, connect fragmented rock body 21 below, so porous permeable plate 11 also undertakes, and axle power is passed to fragmented rock body 21
Task.
The top of piston 19 is machined with multiple holes 20, and the aperture of hole 20 is far longer than the mean diameter of drift-sand, with
When be slightly less than test fragmented rock body 21 particle diameter, piston 19 has hollow cavity 13, and piston 19 is in the outer wall positioned at bottom
On offer the husky outlet 14 of several water.Hole 20 passes through for water sand, and limits passing through of fragmented rock body 21, and water is husky to pass through hole
Hole 20 enters hollow cavity 13, then again through the husky outlet of water 14 discharge, carries out follow-up collection and measurement, the husky outlet 14 of water
Quantity, position and shape do not limit, and can be arbitrary shapes, for example, can be rectangle, and the preferably husky outlet 14 of water is distributed on piston
Arrange on 19 outer wall, husky beneficial to uniformly and quickly discharging water；Piston 19 is located at infiltration master cylinder cylinder 12 bottom, in the work of forcing press
With under, piston 19 is mobile, fragmented rock body 21 can be compressed to the porosity specified（, in formula：,mFor fragmented rock body
21 quality,ρFor fragmented rock body 21 density,rFor permeating master cylinder cylinder 12 radius,hFor fragmented rock body 21 cavity height）Or to broken
Rock mass 21 applies to specify the axle power of size, and piston 19 is designed as hollow cavity 13 structure, can reduce the weight of equipment in a large number, side
Just the carrying out tested.
Preferably, described porous permeable plate 11 is the permeable plectane of even porous, and the top of described piston 19 is also machined with
Uniform multiple holes 20.Make the using effect of porous permeable plate 11 and piston 19 more preferably.
As a kind of further optimization design of the present embodiment, pressure-bearing annulus 8 also includes an impeller 24, and impeller 24 passes through
Impeller bracket 23 is arranged on pressure-bearing annulus 8 inside and is located on pressure-bearing annulus 8 central axis, and impeller 24 towards outlet 27 and goes out
Husky mouth 25 is arranged, the cavity of pressure-bearing annulus is divided into A space 9 and B space 10 by impeller 24.Current and the grains of sand pass through various leading to
Road injects in the A space 9 of pressure-bearing annulus 8, is tentatively mixed to form " preliminary fluid-mixing ", " preliminary fluid-mixing " flows to pressure-bearing again
Impeller in annulus 8, forms " more uniform fluid-mixing " through the stirring of impeller 24, so can increase test accuracy, A
Space 9 " more uniform fluid-mixing " slowly enters fragmented rock body 21 through porous permeable plate 11 after falling into B space 10 again.Its
In the concrete structure of impeller bracket 23 be not construed as limiting, can be able to be for example several using conventional various versions
Rod member connects composition, can also be exactly a rod member, generally arranges an impeller axle at the center of impeller bracket 23；Impeller 24 exists
Need to set certain angle according to actual effect during installation, best results free to rotate under flow action, and no
Need extra power, the service life of impeller 24 is also long.
Broken rock sample by certain mass（Or rock mass）Put in infiltration master cylinder cylinder 12, installation upper piston 19, porous are saturating
Water plate 11 and pressure-bearing annulus 8 and footstock 28, and experimental provision is placed on forcing press, because infiltration master cylinder cylinder is two about 12
End is respectively footstock 28 and piston 19, applies the axle power of particular size by forcing press, and piston 19 moves in the presence of axle power,
Pressure is produced to fragmented rock body 21, such that it is able to test the rheological behavior of fragmented rock body 21.
Water inlet 3 in footstock 28 connects current for giving measurement apparatus 4, and current are for giving measurement apparatus 4 by water with certain
One hydraulic pressure is pressed into footstock 28 and can measure flow velocity and the consumption of water, and the outlet 27 from footstock 28 flows out footstock 28, Ran Houjin
Enter the cavity of pressure-bearing annulus 8, in sand filling tube road 5, deposit the grains of sand of certain mass simultaneously, because drift-sand has preferable flowing
Property, in the presence of controllable direct current push rod motor 26, the grains of sand are with certain speed（Grams Per Second）It is pressed into the chamber of pressure-bearing annulus 8
In body, the grains of sand and current preliminarily form fluid-mixing, if the flows per unit time of footstock 28 water inlet 3 isQ（Liter/the second）, note sand
Speed isv（Grams Per Second）, then the concentration of " preliminary fluid-mixing " be：
n=Q/v
In formula：nFor water sand mixture concentration, unit be g/l.
Water is husky can be collected to it after outflow from piston 19, and measures the husky discharge of water, and collects and measure
Apparatus do not limit, conventional instrument and equipment all enables, and as a kind of feasible scheme is, referring to Fig. 1, described kata-rocks
Piston 19 lower surface of body gushing water routed sand analogue experiment installation is placed in a water sand collection tray 16, and the bottom of piston 19 exists
Periphery is formed with flange 18, has, in the middle part of water sand collection tray 16, the groove 15 matching with flange 18, piston 19 passes through convex
Edge 18, groove 15 are connected with water sand collection tray 16, and the bottom of water sand collection tray 16 has a water collection port 17, receives in water
It is provided with sand drainage screen at collection mouth 17, outside water collection port 17, connect a collection water container.Water sand mixture passes through fragmented rock body 21
Enter piston 19 with porous permeable plate 11, subsequently into water sand collection tray 16, water can be by the husky outlet of water 14 collection, sand
Stay in water sand collection tray 16, when closing water collection port 17, the husky mixing of water can also be obtained in water sand collection tray 16
Thing.The quality after water sand mixture oozed fragmented rock body 21 so can be measured it is also possible to respectively obtain water and husky quality, this
Sample is reached a conclusion by the ratio of in front and back's quality.
As testing equipment main body container, the shape permeating master cylinder cylinder 12 is typically set to circle, matched footstock 28,
Porous permeable plate 11 and piston 19 also have consistent profile, the installation easy to process of this spline structure, and cooperation is compact, but is not limited to
This, permeate master cylinder cylinder 12 and footstock 28, porous permeable plate 11, the shape of piston 19 can also be square, polygon, ellipse
Deng.
As the further distressed structure of the present embodiment, can also be infiltration master cylinder cylinder 12 near the position of upper port
Sand filling tube road 5 is set to multiple, and multiple sand filling tube roads 5 are symmetrical in outlet 27 both sides arrangement, and when outlet 27 is multiple, note is husky
Pipeline 5 is divided into two groups of distributions with the line of outlet 27 for axis of symmetry, and each sand filling tube road 5 is still along infiltration master cylinder cylinder 12 radially
Insert and stretch to the position near infiltration master cylinder cylinder 12 center, the sand outlet 25 in sand filling tube road 5 bends downwards, sand filling tube road 5
Sand inlet is being externally connected to controllable direct current push rod motor 26, and the note sand push pedal 6 that controllable direct current push rod motor 26 connects is tight
Patch sand filling tube road 5 inwall is installed, and pacifies between controllable direct current push rod motor 26 and sand outlet 25 outside infiltration master cylinder cylinder 12
Equipped with sand filling tube road valve 7；By the different sand filling tube road 5 of regulation and control（Keep at least one sand filling tube road 5 in operation）Operation suitable
Sequence is husky to realize continuous confession.
The above, be only presently preferred embodiments of the present invention, and not the present invention is done with any pro forma restriction, every according to
According to the technical spirit of the present invention, to simple modification any done by above example and equal change, each fall within the guarantor of the present invention
Within the scope of shield.
Claims (7)
1. the husky fragmented rock body gushing water of a kind of sustainable supply water routed sand analogue experiment installation, mainly by footstock（28）, infiltration master
Cylinder barrel（12）And piston（19）Constitute, permeate master cylinder cylinder（12）For annular sleeve, footstock（28）With piston（19）It is located at respectively
Infiltration master cylinder cylinder（12）Upper and lower ends, permeate master cylinder cylinder（12）It is connected in footstock（28）On, piston（19）It is arranged on infiltration master
Cylinder barrel（12）Lower end inside, it is characterized in that：
Described footstock（28）Inside has the passage that adds water（1）, add water passage（1）Water inlet（3）Positioned at footstock（28）Outward
Portion simultaneously connects current for giving measurement apparatus（4）, add water passage（1）Outlet（27）Positioned at footstock（28）Centre simultaneously
Open Side Down leads to infiltration master cylinder cylinder（12）；
In described infiltration master cylinder cylinder（12）Inside is from top to bottom respectively equipped with pressure-bearing annulus（8）, porous permeable plate（11）With broken
Rock mass（21）, pressure-bearing annulus（8）, porous permeable plate（11）And fragmented rock body（21）It is connected up and down and all against infiltration master cylinder cylinder
（12）Inwall is arranged, fragmented rock body（21）Downwards again and piston（19）Contact, permeate master cylinder cylinder（12）Position near upper port
Put and there are two sand filling tube roads（5）, two sand filling tube roads（5）It is symmetrical in outlet（27）Both sides are arranged, sand filling tube road（5）Edge is oozed
Master cylinder cylinder thoroughly（12）It is inserted radially into and stretches near infiltration master cylinder cylinder（12）The position at center, sand filling tube road（5）Sand outlet
（25）Bending is downward, sand filling tube road（5）Sand inlet be externally connected to controllable direct current push rod motor（26）, controllable direct current
Push-rod electric machine（26）The note sand push pedal connecting（6）It is close to sand filling tube road（5）Inwall is installed, in controllable direct current push rod motor（26）
And sand outlet（25）Between in infiltration master cylinder cylinder（12）Outside is provided with sand filling tube road valve（7）；Described porous permeable plate（11）
For the permeable plectane of porous, hole thereon（22）Aperture be far longer than the mean diameter of drift-sand, be slightly less than test simultaneously
Fragmented rock body（21）Particle diameter；
Described piston（19）Top be machined with multiple holes（20）, hole（20）Aperture be far longer than the average grain of drift-sand
Footpath, is slightly less than the fragmented rock body of test simultaneously（21）Particle diameter, piston（19）There is hollow cavity（13）, piston（19）In place
The husky outlet of several water is offered on the outer wall of bottom（14）.
2. the husky fragmented rock body gushing water routed sand analogue experiment installation of a kind of sustainable supply water according to claim 1, its
Feature is：Described pressure-bearing annulus（8）Also include an impeller（24）, impeller（24）By impeller bracket（23）It is arranged on pressure-bearing circle
Ring（8）Inside is simultaneously located at pressure-bearing annulus（8）On central axis, impeller（24）Towards outlet（27）And sand outlet（25）Arrangement,
Impeller（24）By pressure-bearing annulus（8）Cavity be divided into A space（9）With B space（10）.
3. the husky fragmented rock body gushing water routed sand analogue experiment installation of a kind of sustainable supply water according to claim 1 and 2,
It is characterized in that：The piston of described fragmented rock body gushing water routed sand analogue experiment installation（19）Lower surface is placed on husky collection of a water and holds in the palm
Disk（16）In, piston（19）Bottom be formed with flange in periphery（18）, in water sand collection tray（16）Middle part has and flange
（18）The groove matching（15）, piston（19）By flange（18）, groove（15）With water sand collection tray（16）It is connected, water is husky
Collection tray（16）Bottom there is a water collection port（17）, in water collection port（17）Place is provided with sand drainage screen, and water is collected
Mouthful（17）One collection water container of outer company.
4. the husky fragmented rock body gushing water routed sand analogue experiment installation of a kind of sustainable supply water according to claim 3, its
Feature is：The described passage that adds water（1）Outlet（27）For multiple, outlet（27）By footstock（28）Centre outwards equal
Even symmetry arrangement, outlet（27）Positioned at the top of sand inlet, outlet（27）Line and sand inlet line vertical interlaced.
5. the husky fragmented rock body gushing water routed sand analogue experiment installation of a kind of sustainable supply water according to claim 3, its
Feature is：Described porous permeable plate（11）For the permeable plectane of even porous, described piston（19）Top be also machined with uniformly
Multiple holes（20）.
6. the husky fragmented rock body gushing water routed sand analogue experiment installation of a kind of sustainable supply water according to claim 1 and 2,
It is characterized in that：Described infiltration master cylinder cylinder（12）Upper end be provided with connection boss, connect boss and footstock（28）In relevant position
On be all evenly equipped with several connecting holes, by bolt（2）Master cylinder cylinder will be permeated in connection hole（12）With footstock（28）It is connected.
7. the husky fragmented rock body gushing water routed sand analogue experiment installation of a kind of sustainable supply water according to claim 1 and 2,
It is characterized in that：In described footstock（28）Footstock with infiltration master cylinder junction（28）On be also machined with toroidal cavity, wherein put
Enter O-shaped rubber ring, footstock（28）With infiltration master cylinder cylinder（12）Between be tightly connected by O-shaped rubber ring.
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| CN107356510A (en) * | 2017-08-11 | 2017-11-17 | 山东科技大学 | Simulate face surrounding rock water inrush channel extension evolution pilot system |
| CN109030782A (en) * | 2018-08-20 | 2018-12-18 | 临沂大学 | A kind of water sand is prominent to gush pilot system and monitoring method |
| CN109596497A (en) * | 2018-12-19 | 2019-04-09 | 河南理工大学 | Simulate the experimental provision and method of sand body liquefaction intrusion trigger mechanism and forming process |
| CN110160938A (en) * | 2019-06-24 | 2019-08-23 | 辽宁工程技术大学 | A kind of frequency conversion permeability apparatus for fragmented rock body water sand two phase fluid flow |
| CN110940610A (en) * | 2019-11-27 | 2020-03-31 | 山东科技大学 | Broken rock nonlinear seepage test system and method |
| CN113804553A (en) * | 2021-09-10 | 2021-12-17 | 太原理工大学 | Visual experimental device and method for fault activation in three-dimensional stress state |
| CN114646748A (en) * | 2022-03-16 | 2022-06-21 | 山东科技大学 | Coal mine stope sand bursting similar simulation test device and test method |
| CN115343202A (en) * | 2022-06-24 | 2022-11-15 | 中国矿业大学(北京) | Water-inrush and sand-bursting test device under triaxial seepage of broken rock mass |
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| CN107356510A (en) * | 2017-08-11 | 2017-11-17 | 山东科技大学 | Simulate face surrounding rock water inrush channel extension evolution pilot system |
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| CN109596497B (en) * | 2018-12-19 | 2021-06-25 | 河南理工大学 | Experimental device and method for simulating sand liquefaction invasion triggering mechanism and formation process |
| CN110160938A (en) * | 2019-06-24 | 2019-08-23 | 辽宁工程技术大学 | A kind of frequency conversion permeability apparatus for fragmented rock body water sand two phase fluid flow |
| CN110160938B (en) * | 2019-06-24 | 2024-05-03 | 辽宁工程技术大学 | Variable-frequency infiltration device for breaking rock mass water-sand two-phase seepage |
| CN110940610A (en) * | 2019-11-27 | 2020-03-31 | 山东科技大学 | Broken rock nonlinear seepage test system and method |
| CN113804553A (en) * | 2021-09-10 | 2021-12-17 | 太原理工大学 | Visual experimental device and method for fault activation in three-dimensional stress state |
| CN113804553B (en) * | 2021-09-10 | 2024-02-13 | 太原理工大学 | Visual experimental device and method for fault activation under three-dimensional stress state |
| CN114646748A (en) * | 2022-03-16 | 2022-06-21 | 山东科技大学 | Coal mine stope sand bursting similar simulation test device and test method |
| CN114646748B (en) * | 2022-03-16 | 2023-10-10 | 山东科技大学 | Simulation test device and test method for sand burst of coal mine stope |
| CN115343202A (en) * | 2022-06-24 | 2022-11-15 | 中国矿业大学(北京) | Water-inrush and sand-bursting test device under triaxial seepage of broken rock mass |
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Application publication date: 20170222 |