CN206710271U - Rock fracture muddy water fluid neuron network device under sound load action - Google Patents
Rock fracture muddy water fluid neuron network device under sound load action Download PDFInfo
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- CN206710271U CN206710271U CN201720512746.XU CN201720512746U CN206710271U CN 206710271 U CN206710271 U CN 206710271U CN 201720512746 U CN201720512746 U CN 201720512746U CN 206710271 U CN206710271 U CN 206710271U
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Abstract
The utility model discloses rock fracture muddy water fluid neuron network device under a kind of sound load action, including specimen appliance, static pressure loading device, dynamic pressure loading device, side pressure loading device, sealing device, infiltration compression testing device, permeability hole duct device, pressure servo loading device and computer controller.The utility model applies static load by static pressure loading device to rock fracture, dynamic load is applied to rock fracture by dynamic pressure loading device, pass through the dynamic strain indicator for being pasted onto the dynamic strain piece of pressure head side and being connected with dynamic strain piece, obtain the time-history curves of incidence wave and back wave, the muddy water hydrodynamic osmotic pressure tested by piezoelectric pressure indicator at the hollow duct of each penetrating type changes, so as to obtain percolation law of the muddy water fluid of different moisture content under the wavy curve and sound load action of different parts dynamic osmotic pressure in rock fracture in rock fracture.
Description
Technical field
Engineering geology technical field is the utility model is related to, rock fracture muddy water under more particularly to a kind of sound load action
Fluid neuron network device.
Background technology
Crack rock is Hydraulic and Hydro-Power Engineering, mining engineering, railway and highway construction project, civil engineering, oil
The complex dielectrics frequently encountered in the various engineerings such as engineering, seafari and Development Engineering, the seepage characteristic of rock fracture is all the time
It is forward position and the heat subject of rock mechanics worker research.
Existing rock fracture seepage apparatus is used for studying the percolation law of water or gas mostly, such as:Rock aqueous vapor seepage flow-should
Couple of force closes air-water in experimental rig, the experimental study of the lower rock fracture water percolation flow physical properties rule of triaxiality effect, coal rock medium
Two phase fluid flow experimental study etc..Only study of rocks crevice water and gas flow are inadequate, in mountain area the mining in solution cavity area,
In Tunnel Engineering, mud mixture, percolation law of this mud mixture in rock fracture are often filled in wall-rock crack
HowSeldom research at present, report is had no for the seepage apparatus of muddy water fluid in rock fracture seepage flow.And existing rock splits
In gap seepage apparatus, the stress of application is static load, does not apply dynamic load, such as:Two-dimentional rock sample Fracture Networks seepage tests
Device, true triaxial stress rock fracture seepage tests deformation measuring device, the lower rock Single Fracture percolation law of two-dimensional stress effect
Experimental study, rock stress-seepage flow coupling true triaxial test system development and application etc..
Existing rock fracture seepage apparatus test is static infiltration coefficient and static seepage field, and this static seepage field is
As caused by hydraulic gradient, it can be described to a certain extent with Darcy's law.In the rock mechanics engineerings such as mining, explosion is moved
Force-disturbance can cause the osmotic pressure of rock fracture muddy water fluid to change, and dynamic seepage field can be produced in rock fracture,
This dynamic seepage field is due to that stress wave caused by dynamic load extrudes rock fracture, causes slurry infiltration pressure in rock fracture instantaneous
Increase severely, the dynamic seepage field is not as caused by mud hydraulic pressure gradient, can not be solved with traditional darcy flow theory.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of sound load simple in construction, reliable operation and made
With lower rock fracture muddy water fluid neuron network device.
The technical scheme that the utility model solves the above problems is:Rock fracture muddy water fluid under a kind of sound load action
Seepage apparatus, including specimen appliance, specimen appliance include upper disk sillar, lower wall sillar, and upper disk sillar, lower wall sillar are superimposed with each other
Rock fracture is formed, lower wall sillar internal vertical is in rock fracture face, along crack plane length and width side on lower wall sillar
To the hollow duct of multiple penetrating types is uniformly drilled through, hollow duct bottom is blocked with plug;Be arranged on above specimen appliance, for pair
Rock fracture applies the static pressure loading device of static load;It is arranged on above specimen appliance, is moved for applying dynamic load to rock fracture
Press loading device;It is arranged on the side pressure loading device of specimen appliance laterally, for applying side pressure to rock fracture;It is arranged on test specimen
Device sidepiece, the sealing device for preventing mud mixture from being flowed out from rock fracture;It is arranged in the hollow duct of penetrating type, uses
In the infiltration compression testing device for testing each hollow duct osmotic pressure;Be arranged on specimen appliance muddy water fluid gateway, for
Muddy water fluid provides the permeability hole duct device of infiltration lane;It is arranged on the entrance side of specimen appliance muddy water fluid, for making muddy water
Fluid permeability crosses the pressure servo loading device of rock fracture;And respectively with static pressure loading device, dynamic pressure loading device, infiltration
Compression testing device is connected, and for record data and draws the computer controller of response curve.
Rock fracture muddy water fluid neuron network device under above-mentioned sound load action, the side pressure loading device include loading oil
Cylinder, pressing plate I, pressing plate II and reaction frame, the left and right sides of the specimen appliance respectively as muddy water fluid gateway side, it is described
A projection is respectively provided with left and right sides of reaction frame, specimen appliance is placed on reaction frame, and is close to reaction frame on the right side of specimen appliance
Right side is raised, and the pressing plate I is close to install on the left of specimen appliance, load cylinder be arranged on reaction frame left hand projection and pressing plate I it
Between, pressure is applied by load cylinder and acts on reaction frame, side pressure is put on into specimen appliance left surface, before the specimen appliance
Both sides are provided with a block pressur plate II afterwards, and pressing plate II is fastened on reaction frame with bolt, and side pressure is put on into side before and after specimen appliance
Face.
Rock fracture muddy water fluid neuron network device under above-mentioned sound load action, the sealing device include rubber filler strip and
Rubber sheet gasket, the rubber filler strip include rubber filler strip I, rubber filler strip II, rubber filler strip III and rubber filler strip IV, rubber filler strip
I and rubber filler strip II be located at the right side of pressing plate I and in the pressing plate I, make rubber filler strip I and rubber by applying pressure to pressing plate I
Rubber cushion bar II is close to disk sillar, the left surface of lower wall sillar, and rubber filler strip III and rubber filler strip IV are located at convex on the right side of reaction frame
The left side risen simultaneously in projection, makes rubber filler strip III and rubber filler strip IV tight on the right side of the reaction frame by applying pressure to pressing plate I
Disk sillar, the right flank of lower wall sillar are sticked, the medial surface of the pressing plate II is provided with rubber sheet gasket, with bolt clam member II,
Pressing plate II applies pressure to rubber sheet gasket, and rubber sheet gasket is close to disk sillar, the front and back sides of lower wall sillar.
Rock fracture muddy water fluid neuron network device under above-mentioned sound load action, the permeability hole duct device enter including muddy water
Oral pore road, muddy water inlet slot, muddy water outlet slot, muddy water outlet duct, the length of muddy water inlet slot and the width phase of rock fracture
Deng and be connected with rock fracture, muddy water inlet channels are located in pressing plate I and one end communicates with muddy water inlet slot, muddy water inlet channels
The other end connect pressure servo loading device, the length of muddy water outlet slot it is equal with the width of rock fracture and with rock fracture phase
Even, muddy water outlet duct is located in raised on the right side of reaction frame and one end communicates with muddy water outlet slot, the muddy water outlet duct other end
Conduit is connect, the outlet of conduit is provided with beaker, and beaker is placed on electronic balance;The muddy water fluid of fixation pressure is through muddy water ingate
Road, muddy water inlet slot penetrate rock fracture, flow out through muddy water outlet slot, muddy water outlet duct, and flow via a conduit beaker
Interior, electronic balance measurement penetrates the mass change of the mud mixture of rock fracture, and is converted into the variable quantity of volume,
So as to calculate the static slurry infiltration rate of rock fracture.
Rock fracture muddy water fluid neuron network device under above-mentioned sound load action, the static pressure loading device include pressure head,
Hemi-spherical indenter is to, vertical ball-screw and loading crossbeam, and for hemi-spherical indenter to being placed on upper disk sillar, pressure head is placed in hemisphere
For shape pressure head to upper, dynamic strain piece is pasted in pressure head side, and pressure head both sides are provided with two vertical ball-screws, and the loading crossbeam is put
Among two vertical ball-screws, two vertical ball-screws drive loading crossbeam to move up and down, and apply static load to pressure head.
Rock fracture muddy water fluid neuron network device under above-mentioned sound load action, the dynamic pressure loading device include drop hammer,
Drop bar, drawstring, trapezoidal fixed steelframe and fixed pulley, the trapezoidal fixed steelframe are fixed on the crossbeam of laboratory, load crossbeam
Central and trapezoidal fixed steelframe bottom center is equipped with a circular open, and two circular opens are located at same perpendicular, and two
Vertical ball-screw and trapezoidal fixed steelframe bottom joggle, the drop bar upper end are fixed at the top of trapezoidal fixed steelframe, fallen
Bar lower end is fixed on pressure head through two circular opens, and described to drop hammer in cylinder, its external diameter is smaller than circular open, it is described fall
Hammer is enclosed in drop bar, and two fixed pulleys are arranged on trapezoidal fixed steelframe upper right side, and drawstring is connected with dropping hammer, and fixed sliding by two
Wheel lies in a certain bearing in ground;When applying dynamic pressure, loosen drawstring, drop hammer along drop bar freely falling body, and pass through two circles
Shape opening, dynamic load is applied to pressure head, by hemi-spherical indenter to dynamic load is passed into upper disk sillar, is finally applied to rock fracture
On.
Rock fracture muddy water fluid neuron network device under above-mentioned sound load action, the infiltration compression testing device include piezoelectricity
Formula pressure sensor and signal wire, piezoelectric pressure indicator are placed in the top in the hollow duct of lower wall sillar, and pass through signal
Line is connected with computer controller, and the quiet osmotic pressure of muddy water fluid and dynamic are oozed at each hollow duct under test sound load action
Pressure thoroughly.
Rock fracture muddy water fluid neuron network device under above-mentioned sound load action, the computer controller include computer and moved
State deformeter, piezoelectric pressure indicator are connected through signal wire and computer, the input and dynamic strain of the dynamic strain indicator
Piece is connected, and output end and the computer of dynamic strain indicator are connected.
Rock fracture muddy water fluid neuron network device under above-mentioned sound load action, the pressure servo loading device include pressure
Force servo loader and valve, pressure servo loader are connected through valve with muddy water inlet channels.
The beneficial effects of the utility model are:
1st, the utility model is provided with infiltration compression testing device, and the hollow duct of some penetrating types is drilled through inside lower wall sillar,
The piezoelectric pressure indicator of infiltration compression testing device is placed in the top in the hollow duct of lower wall sillar, and passes through signal wire and electricity
Brain controller is connected, and so as to test, the quiet osmotic pressure of muddy water fluid and dynamic are permeated at each hollow duct under sound load action
Pressure.
2nd, the utility model applies static load by static pressure loading device to rock fracture, by dynamic pressure loading device to rock
Crack applies dynamic load, by the dynamic strain indicator for being pasted onto the dynamic strain piece of pressure head side and being connected with dynamic strain piece, obtains
Obtain the time-history curves of incidence wave and back wave, the muddy water hydrodynamic tested by piezoelectric pressure indicator at each hollow duct
Osmotic pressure changes, so as to obtain in rock fracture under the wavy curve and sound load action of different parts dynamic osmotic pressure not
With percolation law of the muddy water fluid in rock fracture of water content.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model seepage apparatus.
Fig. 2 is Fig. 1 substructure schematic diagram.
Fig. 3 is Fig. 2 A-A sectional views.
Fig. 4 is the structural representation to be dropped hammer in Fig. 1.
Fig. 5 is the structural representation of Fig. 1 center platens I.
Fig. 6 is the structural representation that crossbeam is loaded in Fig. 1.
Fig. 7 is in the embodiment one of the utility model seepage apparatus test method, when applying dynamic load pressure head incidence wave with it is anti-
Dynamic osmotic pressure wavy curve figure in the timeamplitude map of ejected wave and hollow duct.
Fig. 8 is in the embodiment two of the utility model seepage apparatus test method, when applying dynamic load pressure head incidence wave with it is anti-
Dynamic osmotic pressure wavy curve figure in the timeamplitude map of ejected wave and hollow duct.
Fig. 9 is in the embodiment three of the utility model seepage apparatus test method, when applying dynamic load pressure head incidence wave with it is anti-
Dynamic osmotic pressure wavy curve figure in the timeamplitude map of ejected wave and hollow duct.
In figure:1st, upper disk sillar, 2, lower wall sillar, 3, rock fracture, 4, piezoelectric pressure indicator, 5, muddy water ingate
Road, 6, muddy water outlet duct, 7, computer, 8, hollow duct, 9, electronic balance, 10, rubber sheet gasket, 11, plug, 12, pressing plate I,
13rd, signal wire, 14, load cylinder, 15, loading crossbeam, 16, circular open, 17, vertical ball-screw pass device, 18, drop hammer,
19th, drop bar, 20, drawstring, 21, muddy water inlet slot, 22, muddy water outlet slot, 23, conduit, 24, beaker, 25, pressing plate II, 26, rubber
Rubber cushion bar I, 27, rubber filler strip II, 28, rubber filler strip III, 29, rubber filler strip IV, 30, bolt, 31, dynamic strain piece, 32, pressure
Head, 33, hemi-spherical indenter pair, 34, reaction frame, 35, pressure servo loader, 36, valve, 37, dynamic strain indicator, 38, trapezoidal
Fixed steelframe, 39, fixed pulley.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in figs 1 to 6, rock fracture muddy water fluid neuron network device under a kind of sound load action, including test specimen dress
To put, specimen appliance includes upper disk sillar 1, lower wall sillar 2, and upper disk sillar 1, lower wall sillar 2 are superimposed with each other to form rock fracture 3,
The internal vertical of lower wall sillar 2 is in rock fracture face, along the plane length of rock fracture 3 and width on lower wall sillar 2, every
5cm spacing drills through an a diameter of 1cm hollow duct 8 of penetrating type, and the hollow bottom plug 11 of duct 8 blocks;It is arranged on
Static pressure loading device above specimen appliance, for applying static load to rock fracture 3;Be arranged on above specimen appliance, for pair
Rock fracture 3 applies the dynamic pressure loading device of dynamic load;Be arranged on specimen appliance it is lateral, for applying side pressure to rock fracture 3
Side pressure loading device;It is arranged on specimen appliance sidepiece, the sealing device for preventing muddy water fluid from being flowed out from rock fracture 3;If
Put the infiltration compression testing device in hollow duct 8, for testing each hollow pipeline osmotic pressure;It is arranged on specimen appliance muddy water stream
The gateway of body, the permeability hole duct device for providing infiltration lane to muddy water fluid;It is arranged on specimen appliance muddy water fluid
Entrance side, for making muddy water fluid permeability cross the pressure servo loading device of rock fracture 3;And load fill with static pressure respectively
Put, dynamic pressure loading device, infiltration compression testing device are connected, for record data and draw the computer controller of response curve.
The side pressure loading device includes load cylinder 14, pressing plate I 12, pressing plate II 25 and reaction frame 34, the test specimen dress
Respectively as the gateway side of muddy water fluid, the left and right sides of reaction frame 34 is respectively provided with a projection, tried for the left and right sides put
Part device is placed on reaction frame 34, and is close to the right side of reaction frame 34 projection on the right side of specimen appliance, and the pressing plate I 12 is close to test specimen
Installed on the left of device, load cylinder 14 is arranged between the left hand projection of reaction frame 34 and pressing plate I 12, is applied by load cylinder 14
Pressure acts on reaction frame 34, side pressure is put on into specimen appliance left surface, the specimen appliance front and rear sides are provided with one piece of pressure
Plate II 25, pressing plate II 25 is fastened on reaction frame 34 with 4 bolts, side pressure is put on into specimen appliance front and back sides.
The sealing device includes rubber filler strip and rubber sheet gasket 10, and the rubber filler strip includes rubber filler strip I 26, rubber
Filler strip II 27, rubber filler strip III 28 and rubber filler strip IV 29, rubber filler strip I 26 and rubber filler strip II 27 are located at the right side of pressing plate I 12
Side is simultaneously embedded in pressing plate I 12, rubber filler strip I 26 and rubber filler strip II 27 is close to Shang Panyan by applying pressure to pressing plate I 12
The left surface of block 1, lower wall sillar 2, rubber filler strip III 28 and rubber filler strip IV 29 are located at the raised left side in the right side of reaction frame 34 simultaneously
In the projection of the right side of reaction frame 34, it is close to rubber filler strip III 28 and rubber filler strip IV 29 by applying pressure to pressing plate I 12
Upper disk sillar 1, the right flank of lower wall sillar 2, the medial surface of the pressing plate II 25 are provided with rubber sheet gasket 10, are fastened and pressed with bolt 30
Plate II 25, pressing plate II 25 apply pressure to rubber sheet gasket 10, and rubber sheet gasket 10 is close to the front and rear side of disk sillar 1, lower wall sillar 2
Face.
The permeability hole duct device includes muddy water inlet channels 5, muddy water inlet slot 21, muddy water outlet slot 22, muddy water outlet
Duct 6, the length of muddy water inlet slot 21 is equal with the width of rock fracture 3 and is connected with rock fracture 3, muddy water inlet channels 5
In pressing plate I 12 and one end communicates with muddy water inlet slot 21, the other end of muddy water inlet channels 5 connection pressure servo loading dress
Put, the length of muddy water outlet slot 22 is equal with the width of rock fracture 3 and is connected with rock fracture 3, and muddy water outlet duct 6 is located at
In the right side of reaction frame 34 is raised and one end communicates with muddy water outlet slot 22, another termination conduit 23 of muddy water outlet duct 6, conduit 23
Outlet be provided with beaker 24, beaker 24 is placed on electronic balance 9;The muddy water fluid of fixation pressure is through muddy water inlet channels 5, mud
Water inlet groove 21 penetrates rock fracture 3, is flowed out through muddy water outlet duct 6, muddy water outlet slot 22, and is flowed into and burnt by conduit 23
In cup 24, electronic balance 9 measures the mass change for the mud mixture for penetrating rock fracture 3, and is converted into volume
Variable quantity, so as to calculate the static slurry infiltration rate of rock fracture 3.
The static pressure loading device includes pressure head 32, hemi-spherical indenter to 33, vertical ball-screw 17 and loads crossbeam 15,
Hemi-spherical indenter is placed on to 33 on upper disk sillar 1, and pressure head 32 is placed in hemi-spherical indenter on 33, dynamic is pasted in the side of pressure head 32
Foil gauge 31, the both sides of pressure head 32 are provided with two vertical ball-screws 17, and the loading crossbeam 15 is placed in two vertical ball-screws
Among 17, two vertical ball-screws 17 drive loading crossbeam 15 to move up and down, and apply static load to pressure head 32, pass through hemi-spherical indenter
Static load is passed into upper disk sillar 1 to 33, is finally applied in rock fracture 3.
The dynamic pressure loading device includes drop hammer 18, drop bar 19, drawstring 20, trapezoidal fixed steelframe 38 and fixed pulley 39,
The trapezoidal fixed steelframe 38 is fixed on the crossbeam of laboratory, and the loading central and trapezoidal bottom center of fixed steelframe 38 of crossbeam 15 is equal
Provided with a circular open 16, two circular opens 16 are located at same perpendicular, two vertical ball-screws 17 and trapezoidal fixation
The bottom joggle of steelframe 38, the upper end of drop bar 19 are fixed on the trapezoidal top of fixed steelframe 38, and the lower end of drop bar 19 passes through two
Circular open 16 is fixed on pressure head 32, and described drop hammer 18 is in cylinder, and its external diameter is smaller than circular open 16, described to drop hammer 18 sets
In drop bar 19, two fixed pulleys 39 are arranged on the trapezoidal fixed upper right side of steelframe 38, and drawstring 20 18 is connected with dropping hammer, and passes through
Two fixed pulleys 39 lie in a certain bearing in ground;When applying dynamic pressure, loosen drawstring 20, drop hammer 18 freely falls along drop bar 19
Body, and two circular opens 16 are passed through, dynamic load is applied to pressure head 32, dynamic load is passed to by Shang Panyan to 33 by hemi-spherical indenter
Block 1, finally it is applied in rock fracture 3.
The infiltration compression testing device includes piezoelectric pressure indicator 4 and signal wire 13, and piezoelectric pressure indicator 4 is put
It is connected in the top in the hollow duct 8 of lower wall sillar 2, and by signal wire 13 with computer controller, tests sound load action
Under at each hollow duct 8 muddy water fluid quiet osmotic pressure and dynamic osmotic pressure.
The computer controller includes computer 7 and dynamic strain indicator 37, and piezoelectric pressure indicator 4 is through signal wire 13 and electricity
Brain 7 is connected, and the input of the dynamic strain indicator 37 is connected with dynamic strain piece 31, the output end and computer of dynamic strain indicator 37
7 connect.
The pressure servo loading device includes pressure servo loader 35 and valve 36, and pressure servo loader 35 is through valve
Door 36 is connected with muddy water inlet channels 5.
The test method of rock fracture muddy water fluid neuron network device, comprises the following steps under a kind of sound load action:
Embodiment 1:
(1) test specimen processing and installation;At the tunnel that prominent mud takes place frequently or tunnel scene, the upper and lower good rock that coincide is chosen
Crack, retrofit and polishing are carried out to each face of the upper and lower sillar of irregular rock fracture, it is polished into 400 ×
250 × 125mm (length × width × height) upper disk sillar 1 and lower wall sillar 2, and it is good to ensure that the rock fracture after polishing grinding is coincide
It is good, in the internal vertical of lower wall sillar 2 in rock fracture face, along the plane length and width of rock fracture 3, every 5cm's
Spacing drills through an a diameter of 1cm hollow duct 8 of penetrating type, and each hollow duct 8 is numbered;Lower wall sillar 2 it is each
The bottom in hollow duct 8 is blocked up with plug 11 by placing piezoelectric pressure indicator 4 at rock fracture 3 in the hollow top of duct 8
Firmly, piezoelectric pressure indicator 4 is connected with computer 7 by signal wire 13;
(2) installation and sealing of seepage apparatus;After each part installation of seepage apparatus, by upper disk sillar 1, lower wall sillar 2
It is placed in seepage apparatus, tightens 4 bolts 30, pressing plate II 25 applies pressure to rubber sheet gasket 10, sealed by rubber sheet gasket 10
The front-rear side walls of rock fracture 3, it is ensured that muddy water fluid will not be from the front-rear side walls seepage of rock fracture 3, in load cylinder 14
Apply 1MPa oil pressure, pressure is acted on pressing plate I 12 by reaction frame 41, make rubber filler strip I 26, rubber filler strip II 27,
Rubber filler strip III 28 and rubber filler strip IV 29 are close to disk sillar 1, the left and right sidewall of lower wall sillar 2, it is ensured that muddy water fluid is not
Can be from the flowing water stream socket seepage of specimen appliance;
(3) quiet osmotic pressure is tested;Drive loading crossbeam 15 to move by two vertical ball-screws 17, pressure head 32 is applied
Static load 20KN, and keep its static load 20KN constant, apply 0.5MPa's to muddy water inlet channels 5 by pressure servo loader 35
Muddy water fluid, the change by the muddy water hydrostatic osmotic pressure that piezoelectric pressure indicator 4 is tested at each hollow duct 8 with the time
Change, the mass M for the muddy water fluid for penetrating rock fracture 3 is tested by electronic balance 9, when being converted into volume V, and recorded
Between, the flow Q by rock fracture is obtained, so as to calculate the static infiltration coefficient of rock fracture.Calculation formula is:K is static infiltration coefficient in formula;ρ is muddy water fluid density;G is acceleration of gravity;Q is flow;L splits for rock
Gap face length;A is sample end face rock fracture area;Δ P is that sample end force is poor;
(4) dynamic osmotic pressure is tested;Continue to keep its static load 20KN constant, will drop hammer 18 is statically placed in away from ground along drop bar 19
Face 3m eminences, loosen drawstring 20, drop hammer 18 along the freely falling body of drop bar 19, and pass through the loading central and trapezoidal fixed steel of crossbeam 15
The circular open 16 of the bottom center of frame 38, dynamic load is applied to pressure head 32, produces stress wave, by hemi-spherical indenter to 33 by dynamic load
Pass to disk sillar 1, be finally applied in rock fracture 3, by be pasted onto the side of pressure head 32 dynamic strain piece 31 and with
The connected dynamic strain indicator 37 of dynamic strain piece 31, obtains the time-history curves of incidence wave and back wave, is passed by piezoelectric pressure
The muddy water hydrodynamic osmotic pressure change that sensor 4 is tested at each hollow duct 8, is moved so as to obtain different parts in rock fracture 3
The wavy curve of state osmotic pressure.
Fig. 7 be embodiment 1 test incidence wave in obtained 18 impact processes that drop hammer in pressure head 32 and back wave when
Journey curve, while Fig. 7 also list the wavy curve that numbering in hollow duct 8 is the dynamic osmotic pressure in K16 ducts.
Embodiment 2:Test procedure is with embodiment 1, and 18 height of drop of dropping hammer is changed into 4m, 18 punchings of dropping hammer for testing to obtain
The time-history curves and numbering of incidence wave and back wave during hitting in pressure head 32 are that K16 penetrates dynamic in the hollow duct of shape
The wavy curve of osmotic pressure, is shown in Fig. 8.
Embodiment 3:Test procedure is with embodiment 1, and 18 height of drop of dropping hammer is changed into 5m, 18 punchings of dropping hammer for testing to obtain
The time-history curves and numbering of incidence wave and back wave during hitting in pressure head 32 are that K16 penetrates dynamic in the hollow duct of shape
The wavy curve of osmotic pressure, is shown in Fig. 9.
By three embodiments, show that the experimental rig can be tested out under different Under Dynamic Loads, muddy water stream in rock fracture 3
The dynamic osmotic pressure of body.
Claims (9)
- A kind of 1. rock fracture muddy water fluid neuron network device under sound load action, it is characterised in that:Including specimen appliance, test specimen Device includes upper disk sillar, lower wall sillar, and upper disk sillar, lower wall sillar are superimposed with each other to form rock fracture, inside lower wall sillar Perpendicular to rock fracture face, multiple penetrating type hollow holes are uniformly drilled through along crack plane length and width on lower wall sillar Road, hollow duct bottom are blocked with plug;It is arranged on above specimen appliance, is loaded for applying the static pressure of static load to rock fracture Device;It is arranged on above specimen appliance, the dynamic pressure loading device for applying dynamic load to rock fracture;It is arranged on specimen appliance side To, for rock fracture apply side pressure side pressure loading device;Be arranged on specimen appliance sidepiece, for prevent muddy water fluid from The sealing device of rock fracture outflow;It is arranged in the hollow duct of penetrating type, the infiltration for testing each hollow duct osmotic pressure Compression testing device;It is arranged on the gateway of specimen appliance muddy water fluid, the permeability hole for providing infiltration lane to muddy water fluid Duct device;It is arranged on the entrance side of specimen appliance muddy water fluid, for making muddy water fluid permeability cross the pressure servo of rock fracture Loading device;And be connected respectively with static pressure loading device, dynamic pressure loading device, infiltration compression testing device, for record data And draw the computer controller of response curve.
- 2. rock fracture muddy water fluid neuron network device under sound load action according to claim 1, it is characterised in that:Institute Stating side pressure loading device includes load cylinder, pressing plate I, pressing plate II and reaction frame, and the left and right sides of the specimen appliance is made respectively For the gateway of muddy water fluid, the reaction frame left and right sides is respectively provided with a projection, and specimen appliance is placed on reaction frame, and It is close to projection on the right side of reaction frame on the right side of specimen appliance, the pressing plate I is close to install on the left of specimen appliance, and load cylinder is arranged on anti- Between power frame left hand projection and pressing plate I, pressure is applied by load cylinder and acts on reaction frame, side pressure is put on into specimen appliance Left surface, the specimen appliance front and rear sides are provided with a block pressur plate II, pressing plate II are fastened on reaction frame with bolt, by side pressure Put on specimen appliance front and back sides.
- 3. rock fracture muddy water fluid neuron network device under sound load action according to claim 2, it is characterised in that:Institute Stating sealing device includes rubber filler strip and rubber sheet gasket, and the rubber filler strip includes rubber filler strip I, rubber filler strip II, rubber blanket Bar III and rubber filler strip IV, rubber filler strip I and rubber filler strip II are located at the right side of pressing plate I and in pressing plates I, by pressing plate I application pressure makes rubber filler strip I and rubber filler strip II be close to disk sillar, the left surface of lower wall sillar, rubber filler strip III and rubber Rubber cushion bar IV is located at left side raised on the right side of reaction frame and on the right side of reaction frame in projection, is made by applying pressure to pressing plate I Rubber filler strip III and rubber filler strip IV are close to disk sillar, the right flank of lower wall sillar, and the medial surface of the pressing plate II is provided with rubber Glue gasket, with bolt clam member II, pressing plate II applies pressure to rubber sheet gasket, and rubber sheet gasket is close to disk sillar, lower wall rock The front and back sides of block.
- 4. rock fracture muddy water fluid neuron network device under sound load action according to claim 2, it is characterised in that:Institute Stating permeability hole duct device includes muddy water inlet channels, muddy water inlet slot, muddy water outlet slot, muddy water outlet duct, muddy water inlet slot Length it is equal with the width of rock fracture and be connected with rock fracture, muddy water inlet channels are located in pressing plate I and one end and mud Water inlet groove communicates, and muddy water inlet channels other end connection pressure servo loading device, length and the rock of muddy water outlet slot split The width of gap is equal and is connected with rock fracture, and muddy water outlet duct is located in raised on the right side of reaction frame and one end exports with muddy water Groove communicates, and another termination conduit of muddy water outlet duct, the outlet of conduit is provided with beaker, and beaker is placed on electronic balance;It is fixed The muddy water fluid of pressure penetrates rock fracture through muddy water inlet channels, muddy water inlet slot, through muddy water outlet slot, muddy water outlet opening Road flows out, and flows via a conduit in beaker, and electronic balance measurement penetrates the mass change of the mud mixture of rock fracture, And the variable quantity of volume is converted into, so as to calculate the static slurry infiltration rate of rock fracture.
- 5. rock fracture muddy water fluid neuron network device under sound load action according to claim 1, it is characterised in that:Institute Stating static pressure loading device includes pressure head, hemi-spherical indenter to, vertical ball-screw and loading crossbeam, and hemi-spherical indenter is to being placed on On upper disk sillar, pressure head is placed in hemi-spherical indenter to upper, and dynamic strain piece is pasted in pressure head side, and pressure head both sides are vertical provided with two Ball-screw, the loading crossbeam are placed among two vertical ball-screws, and two vertical ball-screws are driven above and below loading crossbeam Motion, static load is applied to pressure head.
- 6. rock fracture muddy water fluid neuron network device under sound load action according to claim 5, it is characterised in that:Institute State dynamic pressure loading device and include dropping hammer, drop bar, drawstring, trapezoidal fixed steelframe and fixed pulley, the trapezoidal fixed steelframe are fixed In on the crossbeam of laboratory, the loading central and trapezoidal fixed steelframe bottom center of crossbeam is equipped with a circular open, two circles Opening is located at same perpendicular, two vertical ball-screws and trapezoidal fixed steelframe bottom joggle, and the drop bar upper end is fixed At the top of trapezoidal fixed steelframe, drop bar lower end is fixed on pressure head through two circular opens, described to drop hammer in cylinder, its External diameter is smaller than circular open, and described drop hammer is enclosed in drop bar, and two fixed pulleys are arranged on trapezoidal fixed steelframe upper right side, drawstring It is connected with dropping hammer, and a certain bearing in ground is lain in by two fixed pulleys;When applying dynamic pressure, loosen drawstring, drop hammer along whereabouts Bar freely falling body, and two circular opens are passed through, dynamic load is applied to pressure head, by hemi-spherical indenter to dynamic load is passed into upper disk Sillar, finally it is applied in rock fracture.
- 7. rock fracture muddy water fluid neuron network device under sound load action according to claim 1, it is characterised in that:Institute Stating infiltration compression testing device includes piezoelectric pressure indicator and signal wire, and piezoelectric pressure indicator is placed in lower wall sillar The top in emptying aperture road, and be connected by signal wire with computer controller, muddy water at each hollow duct under test sound load action The quiet osmotic pressure and dynamic osmotic pressure of fluid.
- 8. rock fracture muddy water fluid neuron network device under sound load action according to claim 7, it is characterised in that:Institute Stating computer controller includes computer and dynamic strain indicator, and piezoelectric pressure indicator is connected through signal wire and computer, the dynamic The input of deformeter is connected with dynamic strain piece, and output end and the computer of dynamic strain indicator are connected.
- 9. rock fracture muddy water fluid neuron network device under sound load action according to claim 4, it is characterised in that:Institute Stating pressure servo loading device includes pressure servo loader and valve, and pressure servo loader is through valve and muddy water inlet channels Connection.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106932325A (en) * | 2017-05-09 | 2017-07-07 | 湖南科技大学 | Rock fracture muddy water fluid neuron network device and test method under sound load action |
CN112858018A (en) * | 2021-01-08 | 2021-05-28 | 青岛海洋地质研究所 | Device and method for testing lateral pressure creep of hydrate-containing sediment |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106932325A (en) * | 2017-05-09 | 2017-07-07 | 湖南科技大学 | Rock fracture muddy water fluid neuron network device and test method under sound load action |
CN106932325B (en) * | 2017-05-09 | 2024-02-09 | 湖南科技大学 | Device and test method for mud-water fluid seepage of rock fracture under action of dynamic and static loads |
CN112858018A (en) * | 2021-01-08 | 2021-05-28 | 青岛海洋地质研究所 | Device and method for testing lateral pressure creep of hydrate-containing sediment |
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