Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of analogue means of the different displacement gradient deformation fields based on seismic prospecting, the Extensional setting that its object is to based on different displacement gradient deformation field is simulated, gradient displacement deformation basin three-dimensional structure after the match can be simulated develop, and then displacement maximal value can be carried out be positioned at displacement gradient distortion petroliferous basin simulation in the middle part of experiment body.
According to a first aspect of the present invention, provide a kind of analogue means of the different displacement gradient deformation fields based on seismic prospecting, it is characterized in that, it comprises model module, driver module and control module; Model module is for placing silica sand 11 and the silica gel material 10 of simulation Basin Tectonic; Silica sand 11 is for simulating the supracrustal rock of fragility, and silica gel material 10 is for being evenly distributed to whole model by deformation field, and the thickness of silica gel material determines the intensity of deformation field distribution; What driver module was used for applying the crimp in x-axis direction or the sliding deformation in y-axis direction or z-axis direction to the basin model placed draws distortion; Wherein, two pieces of baffle plates 601,602 of x-axis drive the traction acetate film 801,802 on experiment table that model is stretched along x-axis, two parts that the track 401,402,403,404 of y-axis enables model separate in the middle part of experiment table changing of the relative positions and not separated along the y-axis direction, the z-axis cylinder 501,502 of experiment table bottom pulls traction acetate film 801,802 to move downward along z-axis, makes model produce compressional movement; Control module controls to make cylinder 501,502 produce displacement by computing machine 9 pairs of stepper motors 205,206, total deformation displacement is dispensed to strike slip component, extrude component or stretch three axial components such as component, gives corresponding speed respectively to three axial components; Wherein extrude component and stretch component and do not coexist, the same time only can provide in extruding or stretching, extension; When extruding with walk sliding to synthesize pressure twisting strain, stretch and walk and slidingly synthesize a twisting strain, the bulk deformation direction of model determines by pressing the resultant direction of twisting strain and a twisting strain, and the structure grain of first depositing that model is arranged has different angle from deformation direction.
Further, model module comprises separate type experiment table 1, support 301,302,303, track 401,402,403,404, baffle plate 601,602, silica gel material 10 and dry silica sand 11; Wherein separate type experiment table 1 is the sheet metal of two block length 1m rice, wide 0.8m, and being respectively the first sheet metal 101 and the second sheet metal 102, first sheet metal 101 and the second sheet metal 102 lower surface has two grooves respectively; Totally four, track, metal material, length are 2m, are divided into the first track 401, second track 402, the 3rd track 403 and the 4th track 404; Two grooves of the lower surface of the first sheet metal engage with the first track 401 and the second track 402, two articles of grooves of the lower surface of the second sheet metal engage with the 3rd track 403 and the 4th track 404, apply oil lubricates, and the first sheet metal and the second sheet metal are placed side by side, and edges close engages; Use six stepper motors altogether, be respectively the first stepper motor 201, second stepper motor the 202, three stepper motor the 203, four stepper motor the 204, five stepper motor the 205, six stepper motor 206; The first stepper motor 201 and the second stepper motor 202 the first sheet metal 101 and the second sheet metal 102 being implemented to control is respectively arranged with in the end of first group of track 401 and 402 and second group of track 403 and 404.
Preferably, the first stepper motor 201 promotes or pulls the first sheet metal 101 to slide to horizontal direction y-axis along the first track 401 and the second track 402; Or second stepper motor 202 promote or pull the second sheet metal 102 to slide to horizontal direction y-axis along the 3rd track 403 and the 4th track 404; First sheet metal 101 and the second sheet metal 102 independently slide, only can along track 401 in sliding process, and slide in 402,403,404 directions, in sliding process, two pieces of sheet metal 101,102 edges remain tight joint.
More preferably, totally three groups, experiment table support, is made up of metal mainstay and crossbeam, high 0.8m, the pillar of support is vertical, crossbeam level, be divided into the first support 301, second support 302 and the 3rd support 303, the crossbeam of support 301,302,303 all with track 401,402,403,404 vertically put, common support track 401,402,403,404, for the transmission upwards of following model in the vertical direction z-axis provides space.
More preferably, in x-axis horizontal direction on separate type experiment table 1, and place the first baffle plate 601 and second baffle 602 perpendicular to orbital direction is upwards vertical respectively, first baffle plate 601 and second baffle 602 are metal material, length 0.8m, height 0.2m, the first baffle plate 601 and second baffle 602 bottom outside have the fixture of fixed traction acetate film 8, and the first plate washer 601 is connected with the 3rd stepper motor 203 by head rod 701.
Further, second plate washer 602 is connected with the 4th stepper motor 204 by the second connecting link 702, first plate washer 601 is connected with the first acetate film 801 by the fixture of bottom, same second baffle 602 is connected with the second acetate film 802 by the fixture of bottom, first plate washer and second baffle in the horizontal direction x-axis are moved in opposite directions or dorsad, make the first acetate film 801 and the second acetate film 802 in the horizontal direction x-axis move in opposite directions or dorsad.
In addition, silica gel material viscosity is 1*10
4pa*s, for making the sand body on top, silica gel material distributed areas produce homogeneous deformation, dry quartz sand size 20-50 order, angle of internal friction 30 °-31 °, for simulating the brittle deformation of upper crust rock.
Additionally, driver module comprises the first stepper motor 201, second stepper motor 202,3rd stepper motor 203,4th stepper motor the 204, five stepper motor the 205, six stepper motor 206, first cylinder 501, second tin roller 502, head rod 701, the second connecting link 702, first acetate film 801, second acetate film 802; Wherein stepper motor 201,202,203,204,205, the 206 size impacts can not stressed according to pulse radio speed responsive output displacement.
Preferably, connecting link 701,702 two is metal material, length 0.6m, traction acetate film 801,802 thickness 1mm, width 0.8m, nonelastic; First cylinder 501 and second tin roller 502 are metal material, diameter 0.1m, length 1m, first cylinder 501 and second tin roller 502 are connected with the 5th stepper motor 205 and the 6th stepper motor 206 respectively, the 5th stepper motor 205 and the 6th stepper motor 206 is used to drive, first snap close 121 is set between first cylinder 501 and the 5th stepper motor 205, the connection of the first cylinder 501 and the 5th stepper motor 205 can be untied; 3rd stepper motor 203 is fixed on the middle of the first sheet metal 101 horizontal direction x-axis remote edge, the first plate washer 601 is connected by head rod 701,3rd snap close 123 is set between the 3rd stepper motor 203 and head rod 701, the connection between the 3rd stepper motor 203 and head rod 701 can be untied; 4th stepper motor 204 is fixed on the middle of the second sheet metal 102 horizontal direction x-axis remote edge, the second plate washer 602 is connected by the second connecting link 702,4th snap close 124 is set between the 4th stepper motor 204 and the second connecting link 702, the connection between the 4th stepper motor 204 and the second connecting link 702 can be untied; Stepper motor 203 and 204 pulls baffle plate 601 and 602 to move respectively to the first sheet metal 101 and the second sheet metal 102 edge direction respectively; Rectangle acetate film totally two pieces, be respectively the first film 801 and the second film 802, the first film 801 one end is through the first baffle plate 601 bottom, be connected and fixed with the first baffle plate 601 outside the first plate washer 601, one end, through the seam the first sheet metal 101 and the second sheet metal 102, is connected with the first cylinder 501 of the first sheet metal 101 bottom.
More preferably, control module comprises computing machine 9, computing machine 9 is by the component of trigonometric function computing velocity, connected by USB interface and control the first stepper motor 201, second stepper motor the 202, three stepper motor 203,4th stepper motor 204, the motion of the 5th stepper motor the 205, six stepper motor 206, thus the distortion of Controlling model.
According to a second aspect of the present invention, provide the method for the analogue means using the above-mentioned different displacement gradient deformation fields based on seismic prospecting, it comprises the following steps:
The first step, prepared by model, according to the scale in actual basin, according to 1:10
5scale smaller, draw the size of experiment body, experiment table and baffle plate are moved to relevant position, according to scope and the gradient of default deformation field, experiment table is laid the silica gel material of respective range, lays the dry silica sand of respective thickness at silica gel material and bench top;
Second step, sense of displacement and rate calculations, experimentally, utilize trigonometric function to calculate the rate of displacement component of x, y, z three axle, if carrying out stretching or opening turns round experiment, then z-axis is deformed into 0, unties the snap close of z-axis cylinder, buckles the snap close of x-axis baffle plate; If carrying out extruding or pressing turns round experiment, then x-axis is deformed into 0, unties the snap close of x-axis baffle plate, buckles the snap close of z-axis cylinder;
3rd step, experiment is carried out, use second step to calculate the displacement component of gained, input computing machine respectively, control each group of stepper motor and run, basin model is made to produce distortion, in deformation process, get final product the structural evolution of observing and nursing, after experiment terminates, use watering can to spray water to model sand body, model is shaped, the structure of inside, basin can be observed model slice.
Use analogue means and the using method thereof of the different displacement gradient deformation fields based on seismic prospecting of the present invention, not only automaticity is high, and deformation field and the graded thereof of controllable direction can be realized, carry out the structural evolution simulation of petroliferous basin, for the deep development of Petroliferous Basin Analysis provides condition.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Additionally, protection scope of the present invention only should be limited to following concrete structure or parts or design parameter.
The present invention is based on the analogue means of the different displacement gradient deformation fields of seismic prospecting, it is the basin modelling device of the different displacement gradient deformation field of simulation, its based on principle of work be: stepper motor, moving stop, traction acetate film and cylinder are connected to become Bidirectional power device, by x-axis to left and right two parts form separate type test table top; By stepper motor, the moving stop making it connect is along x-axis to reverse movement, and interlock traction acetate film forms Extensional stress field, or drives traction acetate film by Rolling motor, and moving stop is moved along x-axis to subtend.Form extrusion stress field; Separate type experiment table by experiment platform support, y-axis, to moving track and step motor control, realizes left and right two parts along y-axis to cracking, sliding individually or simultaneously, is formed and walks sliding stress field.During experiment, first silica gel uniform spreading is put in traction acetate film on, repave put dry silica sand, mud composition alternating layers columnar structure analog sample between two moving stops; Propulsion system connect computing machine, and the x-axis being controlled baffle plate/cylinder by computing machine, to the y-axis of translational speed and separate type experiment table to translational speed, realizes the basin modelling of the tension/extrusion and displacement gradient deformation field of different resultant direction.In experimentation, carry out the deformation evolutionary process of middle experimental subjects by end face and side observation experiment; After experiment terminates, medication water retting experimental subjects makes it consolidation, to its section with the observation carrying out horizontal cross-section and longitudinal profile.
Further, described analogue means realizes based on following principle: pass through driving stepper motor, control separate type experiment table top carries out y-axis and drives traction acetate film to carry out x-axis to motion to motion and baffle plate/cylinder, the quantification jointly realizing direction of extension is controlled, by laying in experiment sand body bottom the gradient changes in distribution that silica gel realizes stretching displacement.Experiment table support, track and stepper motor play and support and the effect of fixing experiment table top, and make experiment table can only along y-axis to slip, the sliding speed of About Stepping Motor Control Experiment platform and distance; Separate type experiment table top is divided into left and right two halves, cracks along the y-axis direction in centre, and two pieces of experiment table tops also can slide along y-axis to sliding separately simultaneously; Baffle plate, perpendicular to experiment table, is placed on experiment table, is connected to another group stepper motor on experiment table, can moves along the x-axis direction; Two traction acetate film are fixed on the bottom of moving stop in one end respectively, and the other end is connected on cylinder through cracking of table top of experiment, and cylinder is by computer-controlled driving stepper motor; Experiment material is divided into two-layer, and bottom is silica gel, and upper strata is dry silica sand, silica gel has certain mobility, the silica sand deformation field be directly placed on traction acetate film is 0, and in experiment table, seam place deformation field is maximal value, and therefore the deformation field on silica gel top exists graded.When only experiment table moves, deformation field be y-axis to, when only baffle plate moves, deformation field be x-axis to, namely therefore experiment table and baffle plate are simultaneously mobile achieves oblique deformation field, deformation field angle [alpha]=arctany/x.Can carry out situation from end face and side observation experiment in experimentation, experiment terminates rear available liquid medicine dipping sand body makes it consolidation, sand body section is carried out to the observation in horizontal cross-section and longitudinal profile.Automaticity of the present invention is high, can realize deformation field and the graded thereof of controllable direction, carries out the structural evolution simulation of petroliferous basin, for the deep development of Petroliferous Basin Analysis provides condition.
Shown in figure 1, 1-separate type experiment table, 101-the first sheet metal, 102-the second sheet metal, 201-the first stepper motor, 202-the second stepper motor, 203-the three stepper motor, 204-the four stepper motor, 205-the five stepper motor, 206-the six stepper motor, 301-the first support, 302-the second support, 303-the three support, 401-the first track, 402-the second track, 403-the three track, 404-the four track, 501-the first cylinder, 502-second tin roller, 601-the first baffle plate, 602-second baffle, 701-head rod, 702-the second connecting link, 801-the first acetate film, 802-the second acetate film, 9-computing machine, 10-silica gel material, 11-dry silica sand, 121-the first snap close, 122-the second snap close, 123-the three snap close, 124-the four snap close.
The analogue means that the present invention is based on the different displacement gradient deformation fields of seismic prospecting comprises model module, driver module and control module.Model module is for placing silica sand 11 and the silica gel material 10 of simulation Basin Tectonic.Wherein, silica sand 11 is for simulating the supracrustal rock of fragility, and silica gel material 10 is for being evenly distributed to whole model by deformation field, and the thickness of silica gel material 10 determines the intensity of deformation field distribution.Driver module is used for the crimp basin model placed being applied to x-axis direction, the sliding deformation of horizontal direction y-axis, vertical direction z-axis draw distortion.Wherein, two pieces of baffle plates 601,602 of horizontal direction x-axis drive the traction acetate film 801,802 on experiment table that model is stretched along x-axis, two parts sheet metal 101,102 that the track 401,402,403,404 of y-axis makes model separate in the middle part of experiment table can the changing of the relative positions and not separated along the y-axis direction, the z-axis cylinder 501,502 of experiment table bottom pulls traction acetate film 801,802 to move downward along z-axis, makes model produce compressional movement.Control module uses computing machine 9 to connect stepper motor 201,202,203,204,205,206 and controls its generation displacement, according to experimental design, total deformation displacement is dispensed to three axis, give corresponding speed respectively, the displacement of empirical model can be analyzed to and strikes slip component, extruding component or stretching, extension component, wherein extrude component and stretch component and do not coexist, the same time only can provide in extruding or stretching, extension.Pressure twisting strain is synthesized when extruding and walking to slide, stretch and walk to slide and synthesize a twisting strain, the bulk deformation direction of model is determined by both resultant directions, and the structure grain of first depositing that model is arranged has different angle from deformation direction, simulates accordingly to basin-mountain frame work.
Further, the analogue means of the different displacement gradient deformation fields based on seismic prospecting of the present invention comprises separate type experiment table 1, first sheet metal 101, second sheet metal 102, first stepper motor 201, second stepper motor 202, 3rd stepper motor 203, 4th stepper motor 204, 5th stepper motor 205, 6th stepper motor 206, first support 301, second support 302, 3rd support 303, first track 401, second track 402, 3rd track 403, 4th track 404, first cylinder 501, second tin roller 502, first baffle plate 601, second baffle 602, head rod 701, second connecting link 702, first acetate film 801, second acetate film 802, computing machine 9, silica gel material 10, dry silica sand 11, first snap close 121, second snap close 122, 3rd snap close 123, 4th snap close 124.Wherein drawing acetate film 801,802 drives the silica gel material 10 on top and dry silica sand 11 to move, stretching, extension displacement in the middle part of separate type experiment table 1 is maximum, and drawing position that acetate film 801,802 directly contacts with dry silica sand 11, to stretch displacement be 0, deformation field forms gradient distribution on silica gel material 10 top, thus the basin-mountain frame work on research top, gradient deformation field.Wherein separate type experiment table 1 is the experiment table top sheet metal 101,102 of a flat dimidiation, bottom is connected with track 401,402,403,404 with experiment table support 301,302,303, sheet metal 101,102 can carry out y-axis to slip along track 401,402,403,404, uses stepper motor 201,202 to drive.Separate type experiment table 1 top arranges two parallel baffle plates 601, 602, by connecting link 701, 702 use stepper motor 203, 204 drive, baffle plate 601, 602 can carry out x-axis to movement, baffle plate 601, 602 connect traction acetate film 801, 802 are positioned on separate type experiment table 1, from two halves experiment table top sheet metal 101, pass through to separate type experiment table 1 bottom between 102 and connect cylinder 501, 502, cylinder 501, 502 connect stepper motor 205 respectively, 206, cylinder 501, 502 and baffle plate 601, 602 provide pulling force, drive traction acetate film 801 respectively, 802 move to x-axis both direction.The displacement of traction acetate film 801,802 is propagated into by silica gel material 10 in the dry silica sand 11 of experiment body, empirical model is deformed, it is consistent that distribution and the silica gel material 10 of deformation field lay scope, deformation field in the middle part of separate type experiment table 1 is maximum, deformation field reduces to two end-stopping plate directions, without the region that silica gel material 10 distributes, dry silica sand 11 directly contacts traction acetate film, and stretching displacement is 0.In experimentation, computing machine 9 is used to control speed and the displacement of all stepper motors 201,202,203,204,205,206.
In more detail, the analogue means that the present invention is based on the different displacement gradient deformation fields of seismic prospecting comprises model module, driver module and control module.Model module comprises separate type experiment table 1, support 301,302,303, track 401,402,403,404, baffle plate 601,602, silica gel material 10 and dry silica sand 11.Wherein separate type experiment table 1 is the sheet metal of two block length 1m, wide 0.8m, be respectively the first sheet metal 101 and the second sheet metal 102, first sheet metal 101 and the second sheet metal 102 lower surface have two grooves respectively, totally four, track, metal material, length are 2m, are divided into the first track 401, second track 402, the 3rd track 403 and the 4th track 404, two grooves of the lower surface of the first sheet metal 101 engage with the first track 401 and the second track 402, two articles of grooves of the lower surface of the second sheet metal 102 engage with the 3rd track 403 and the 4th track 404, apply oil lubricates, first sheet metal 101 and the second sheet metal 102 are placed side by side, edges close engages, use six stepper motors altogether, be respectively the first stepper motor 201, second stepper motor 202, 3rd stepper motor 203, 4th stepper motor 204, 5th stepper motor 205, 6th stepper motor 206, the first stepper motor 201 and the second stepper motor 202 the first sheet metal 101 and the second sheet metal 102 being implemented to control is respectively arranged with in the end of first group of track 401 and 402 and second group of track 403 and 404.
First stepper motor 201 promotes or pulls the first sheet metal 101 to slide to horizontal direction y-axis along the first track 401 and the second track 402, in like manner, second stepper motor 202 promotes or pulls the second sheet metal 102 to slide to horizontal direction y-axis along the 3rd track 403 and the 4th track 404, first sheet metal 101 and the second sheet metal 102 independently slide, only can along track 401 in sliding process, 402,403, slide in 404 directions, in sliding process, two pieces of sheet metal 101,102 edges remain tight joint.Totally three groups, experiment table support 3, is made up of metal mainstay and crossbeam, high 0.8m, the pillar of support is vertical, and crossbeam level, is divided into the first support 301, second support 302 and the 3rd support 303, the crossbeam of support 301,302,303 all with track 401,402,403,404 vertically put, common support track 401,402,403,404, for the transmission upwards of following model in the vertical direction z-axis provides space.In x-axis horizontal direction on separate type experiment table 1, and place the first baffle plate 601 and second baffle 602 perpendicular to orbital direction is upwards vertical respectively, first baffle plate 601 and second baffle 602 are metal material, length 0.8m, height 0.2m, first baffle plate 601 and second baffle 602 bottom outside have the fixture of fixed traction acetate film 8, first plate washer 601 is connected with the 3rd stepper motor 203 by head rod 701, in like manner, second plate washer 602 is connected with the 4th stepper motor 204 by the second connecting link 702, first plate washer 601 is connected with the first acetate film 801 by the fixture of bottom, same second baffle 602 is connected with the second acetate film 802 by the fixture of bottom, first plate washer 601 and second baffle 602 in the horizontal direction x-axis are moved in opposite directions or dorsad, make the first acetate film 801 and the second acetate film 802 in the horizontal direction x-axis move in opposite directions or dorsad.Silica gel material 10 viscosity is 1*10
4pa*s, for making the sand body on top, silica gel material 10 distributed areas produce homogeneous deformation, dry silica sand 11 granularity 20-50 order, angle of internal friction 30 °-31 °, for simulating the brittle deformation of upper crust rock.
Driver module comprises the first stepper motor 201, second stepper motor the 202, three stepper motor the 203, four stepper motor 204,5th stepper motor 205,6th stepper motor 206, first cylinder 501, second tin roller 502, head rod 701, second connecting link 702, first acetate film 801, second acetate film 802.Wherein stepper motor 201,202,203,204,205, the 206 size impacts can not stressed according to pulse radio speed responsive output displacement, connecting link 701,702 two is metal material, length 0.6m, acetate film 801, and 802 thickness 1mm, width 0.8m are nonelastic, cylinder 501,502 is metal material, diameter 0.1m, length 1m, first cylinder 501 and second tin roller 502 are connected with the 5th stepper motor 205 and the 6th stepper motor 206 respectively, the 5th stepper motor 205 and the 6th stepper motor 206 is used to drive, first snap close 121 is set between first cylinder 501 and the 5th stepper motor 205, the connection of the first cylinder 501 and the 5th stepper motor 205 can be untied, in like manner, second snap close 122 is set between second tin roller 502 and the 6th stepper motor 206, the connection of second tin roller 502 and the 6th stepper motor 206 can be untied, 3rd stepper motor 203 is fixed on the middle of the first sheet metal 101 horizontal direction x-axis remote edge, the first plate washer 601 is connected by head rod 701,3rd snap close 123 is set between the 3rd stepper motor 203 and head rod 701, the connection between the 3rd stepper motor 203 and head rod 701 can be untied, 4th stepper motor 204 is fixed on the middle of the second sheet metal 102 horizontal direction x-axis remote edge, the second plate washer 602 is connected by the second connecting link 702,4th snap close 124 is set between the 4th stepper motor 204 and the second connecting link 702, the connection between the 4th stepper motor 204 and the second connecting link 702 can be untied, stepper motor 203 and 204 pulls baffle plate 601 and 602 to move respectively to the first sheet metal 101 and the second sheet metal 102 edge direction respectively, rectangle acetate film totally two pieces, be respectively the first acetate film 801 and the second acetate film 802, first acetate film 801 one end is through the first baffle plate 601 bottom, be connected and fixed with the first baffle plate 601 outside the first plate washer 601, one end is through the seam the first sheet metal 101 and the second sheet metal 102, be connected with the first cylinder 501 of the first sheet metal 101 bottom, similarly, second acetate film 802 one end is through second baffle 602 bottom, be connected and fixed with second baffle 602 outside the second plate washer 602, one end is through the seam the first sheet metal 101 and the second sheet metal 102, be connected with the second tin roller 502 of the second sheet metal 102 bottom, if carry out stretching, extension experiment, just untie the first snap close 121 and the second snap close 122, lock the 3rd snap close 123 and the 4th snap close 124, the 3rd stepper motor 203 and the 4th stepper motor 204 is used to control the first plate washer 601 respectively and the second plate washer 602 pulls acetate film 801 outside this instrument, 802, if carry out extrusion experiment, just untie the 3rd snap close 123 and the 4th snap close 124, lock the first snap close 121 and the second snap close 122, the 5th stepper motor 205 and the 6th stepper motor 206 is used to drive the first cylinder 501 and second tin roller 502 to pull acetate film 801 downwards along the z-axis direction, 802, first stepper motor 201 pushes away, and when the second stepper motor 202 draws, left-handed wrench deformation simulated by instrument, and the first stepper motor 201 draws, when the second stepper motor 202 pushes away, and instrument simulation dextrorotation wrench deformation.
Control module comprises computing machine 9, computing machine 9 is by the component of trigonometric function computing velocity, connected by USB interface and control the first stepper motor 201, second stepper motor 202,3rd stepper motor the 203, four stepper motor the 204, five stepper motor 205, the motion of the 6th stepper motor 206, thus the distortion of Controlling model.
In another embodiment of the invention, a kind of basin modelling device of simulating different displacement gradient deformation field, mainly solves in prior art and does not have device can carry out the problem of the basin modelling device of different displacement gradient deformation field.It is characterized in that: described experimental provision comprises with lower component, be respectively separate type experiment table 1, stepper motor 201,202,203,204,205,206, experiment table support 301,302,303, track 401,402,403,404, cylinder 501,502, baffle plate 601,602, connecting link 701,702, traction acetate film 801,802, computing machine 9, silica gel material 10 and dry silica sand 11, computer-controlled stepper motor 201,202,203,204,205,206 and cylinder 501,502 export controlled stabilized speed, stepper motor 201,202,203,204,205,206 by connecting link 701,702 and track 401,402,403,404 control respectively baffle plate 601,602 and separate type experiment table 1 carry out x-axis to y-axis to movement, cylinder 501,502 by traction acetate film 801,802 along z-axis to transmission, pull baffle plate 601,602 to move in opposite directions, according to the specific requirement of simulated experiment, can by controlling and baffle plate 601, 602 stepper motors 203 be connected, 204 realize x-axis to stretching action, with cylinder 501, 502 be connected 205, 206 realize x-axis to squeezing action, by stepper motor 201, 202 control sheet metal 101, 102 realize y-axis to strike slippin$, by computing machine control lower x-axis to y-axis to moving velocity vector superpose, any direction distortion can be realized, silica gel material 10 by the maximum displacement in the middle part of experiment table the silica gel material 10 be distributed in whole experiment body lay scope, the Basin Evolution process of different displacement gradient deformation field is simulated with this.
In above-mentioned concrete enforcement, according to actual basin size, according to 1:10
5scale smaller draws the size of experiment body, extensional quantity maximum is positioned over the middle part of separate type experiment table 1, silica gel material 10 is laid within the scope of preset displacement gradient deformation field, speed is stretched according to direction of extension and the angle calcu-lation experiment table gliding cable structure and baffle plate first depositing structure, afterwards by dry silica sand 11 particle diameter 20-50 order simulation brittle formation, according to the basin fill zone thickness of reality and form, silica sand 11 and silica gel material 10 are laid into lab space, use computing machine 9 control step motor to drive experiment table and baffle plate to move.Can continue between deformation phases to experiment body in add stratum simulation deposition, or remove a part of stratum simulation degrade; Experiment to be carried out in process at regular intervals or certain push-and-pull distance Taking Pictures recording, and experiment terminates rear medication water retting experiment body makes it consolidation, and cutting experiment body observes internal cross section, carries out experimental record and summary, draws experimental result.
In addition, utilize the step of the analogue means of the different displacement gradient deformation fields based on seismic prospecting of the present invention as follows:
The first step, prepared by model, according to the scale in actual basin, according to 1:10
5scale smaller, draw the size of experiment body, experiment table and baffle plate are moved to relevant position, according to scope and the gradient of default deformation field, experiment table is laid the silica gel material of respective range, lays the dry silica sand of respective thickness at silica gel material and bench top.
Second step, sense of displacement and rate calculations, experimentally, utilize trigonometric function to calculate the rate of displacement component of x, y, z three axle, if carrying out stretching or opening turns round experiment, then z-axis is deformed into 0, unties the snap close of z-axis cylinder, buckles the snap close of x-axis baffle plate; If carrying out extruding or pressing turns round experiment, then x-axis is deformed into 0, unties the snap close of x-axis baffle plate, buckles the snap close of z-axis cylinder.
3rd step, experiment is carried out, use second step to calculate the displacement component of gained, input computing machine respectively, control each group of stepper motor and run, basin model is made to produce distortion, in deformation process, get final product the structural evolution of observing and nursing, after experiment terminates, use watering can to spray water to model sand body, model is shaped, the structure of inside, basin can be observed model slice.
The invention has the beneficial effects as follows: provide the x-axis that can simultaneously freely arrange to and y-axis to moving direction and speed, achieve the continuous experiment of multi-direction different displacement gradient deformation field, the structural evolution simulated experiment in dissimilar basin can be adapted to.By the basin modelling device required function set of different stress field environment, different stress direction on this experimental provision, form multifunctional in-situ continually varying deformation field analogue experiment installation, according to specific experiment requirement, without the need to redesigning experimental provision, control stepper motor and the cylinder of diverse location by means of only computing machine, the basin modelling experiment of multi-direction polymorphic type deformation field can be carried out.By the application of this experimental provision, drastically increase conventional efficient, significantly reduce experimental cost.Propulsion system on different directions can control its moving direction and speed separately through computing machine, simple to operate, without the need to carrying out disassembly and assembly to experimental provision, reduce the cost of single experiment, there is economy and the diversified feature of model, compensate for stress direction immobilization in prior art, stretch the shortcomings such as extruding can not coexist, strike slippin$ can not superpose.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.This area those skilled in the art are appreciated that when not deviating from the spirit and scope of the present invention of claims definition, can make various amendment in form and details.