CN109285436A - Strike-slip fault zone physical simulation experiment device and experimental method for Elevated Gravity - Google Patents

Strike-slip fault zone physical simulation experiment device and experimental method for Elevated Gravity Download PDF

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Publication number
CN109285436A
CN109285436A CN201811323852.9A CN201811323852A CN109285436A CN 109285436 A CN109285436 A CN 109285436A CN 201811323852 A CN201811323852 A CN 201811323852A CN 109285436 A CN109285436 A CN 109285436A
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China
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experimental
experimental box
plate
centrifuge
power
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CN201811323852.9A
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Chinese (zh)
Inventor
贾东
吴晓俊
杨树锋
励音骐
陈汉林
陈竹新
尹宏伟
李泉
李一泉
袁剑英
吴武军
王彦君
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Nanjing University
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Nanjing University
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/40Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for geology

Abstract

The invention discloses a kind of strike-slip fault zone physical simulation experiment devices and experimental method for Elevated Gravity, experimental provision includes experimental box and power device, experimental box includes experimental box fixed baffle and two pieces of experimental box bottom plates, every piece of experimental box bottom plate two sides set moving stop and mobile driving plate, the moving stop of two sides and mobile driving plate dislocation arrangement, experimental box bottom base plate are installed on experimental box base plate rail by experimental box bottom plate sliding block;Under the action of power device, every piece of experimental box bottom plate drives the power drive plate respectively connected and moving stop to move respectively, and the experimental material in experimental box is able to dislocation deformation.The experimental provision completes the arrangement to experimental material in experimental box under normal gravity condition;Under the conditions of centrifugal force, the power device of simulation experiment of tectonics physics case two sides is carried out automatically controlling, so that simulation experiment of tectonics physics case completes deep layer strike-slip fault zone physical simulation experiment, provides instant geological structure evolutionary process model for researcher.

Description

Strike-slip fault zone physical simulation experiment device and experimental method for Elevated Gravity
Technical field
The present invention relates to a kind of experimental provision and experimental methods more particularly to a kind of for walking sliding structure under Elevated Gravity Make physical simulation experiment device and experimental method.
Background technique
Architectonic physical analogy has 200 years of researches history.The research in this field is until eighties of last century 30 (Hubbert, 1937 just obtain substantive development, and eventually become Modeling of Geological Structural Deformation rule for the foundation of age similarity theory Rule, the main means of forming process and study of genetic mechanism.For a long time, people utilize normal gravity tectonics physical simulating device There is comprehensive research to geological structure process spread, and greatly advanced the research and the level of understanding of structural geology.
At home and abroad structural geology research field achieves remarkable effect to structural deformation physical simulating method, and domestic and international one A little prominent universities and research institute establish respective laboratory one after another, for example, Stanford Univ USA, Rice University, English London University of state, Bern, SUI university etc..At home, Nanjing University, The Chinese Geology Univ. (Beijing), Chengdu University of Technology, The colleges and universities such as Chinese Petroleum Univ. establish simulation experiment of tectonics physics room in succession, are mainly used for simulating structural deformation physics The experimental study of simulation.However, most of simulation experiment of tectonics physics be under the conditions of normal gravity sandbox experiment in complete 's.Normal gravity tectonics physical simulation experiment (is gushed, asthenosphere convection current, lower crust stream on such as mantle plume being related to rock flow deformation Dynamic and magma and gypsum-salt bed diapir) the problems such as infrastructure process physical simulation aspect there are great limitation, Chang Chongli Simulation experiment of tectonics physics can simulate structural deformation form true to nature, but experiment lacked the stress influence of structural deformation because Element.
Ground knowledge for being related to gravity is inscribed, and centrifuge has irreplaceable role.Using centrifuge, may be implemented just Chang Chongli hundred times, even 1000 times or more of Elevated Gravity, therefore practical geologic body can be dwindled into a geological model, It is studied under lab.For the rock in the earth's crust, gravity is to control its principal element destroyed and deformed, and is used It is inevitable choice that centrifuge, which carries out related physical simulation experiment,.The laboratory Sweden Uppsala university Ramberg takes the lead in carrying out Based on centrifuge Elevated Gravity PHYSICAL MODELING OF IN (Ramberg, 1967, then Canada's Queens University and Italian Buddhist This respect work has also been carried out in the modelling structural experiments rooms such as Lauren Sa university in succession, foreign scholar also delivered corresponding research at Fruit (Harris&Koyi (2003, JSG), Acocella (2008, EPSL), Noble&Dixon (2011, JSG), Corti& Dooley (2015, Tectonophysics), Dietl&Koyi (2011, JSG) etc..
The simulated experiment carried out under centrifuge Elevated Gravity is to solve the problems, such as that normal gravity tectonics physical simulation experiment exists Effective way, however since structure is complicated that cost is high for long-armed super-magnum centrifuge, the physics mould of centrifuge super gravity field environment Quasi- most lower, lesser drum centrifuges of size using cost.Although these drum centrifuge geology structural models fill The highest acceleration of gravity set is up to 1000g or more, but the size of experimental model is minimum (more than ten centimetres maximum, it is difficult to fine mould Intend practical geological structure phenomenon, and due to Laboratory Module narrow space, no image of Buddha Chang Chongli experimental provision is equipped with force section like that Part and real-time observation instrument, it is difficult to precision control rate of deformation and synchronous recording whole deformation process.Currently, being directed to centrifuge environment Under architectonic simulation experiment study example it is also considerably less, the experiment of most centrifuge modellings is mainly used in ground work The research of the stress-deformation characteristic and Penetration Signature of journey structure.As China Water Resources & Hydropower Science Research Institute's civil engineering laboratory is gathered around There is large geotechnical centrifugal model test machine, the relevant device for being applied to modelling structural experiment under centrifuge environment does not almost have then at present Have.
Summary of the invention
Goal of the invention: the first object of the present invention is that Elevated Gravity geological structure evolution process mould is provided for researcher The strike-slip fault zone physical simulation experiment device of type;The second object of the present invention is to provide the experimental method using the experimental provision.
Technical solution: the present invention is used for the strike-slip fault zone physical simulation experiment device of Elevated Gravity, including is located at experiment To arrange that the experimental box and power device of experimental material, the experimental box include that the experimental box positioned at front and rear sides is fixed in cabin Baffle and two pieces of experimental box bottom plates between the experimental box fixed baffle, every piece of experimental box bottom plate two sides set moving stop With mobile driving plate, the moving stop of two sides and mobile driving plate dislocation arrangement, the experimental box bottom base plate pass through experimental box Bottom plate sliding block is installed on experimental box base plate rail;Under the action of power device, every piece of experimental box bottom plate drives respectively respectively The power drive plate and moving stop of connection move, and the experimental material in experimental box is able to dislocation deformation.
The invention also includes the movable support frame being located at the top of moving stop and mobile driving plate, the fixed gears of the experimental box Weight support sliding rail is equipped at the top of plate, the movable support frame two sides are sliding in weight support sliding rail by weight support sliding block It is dynamic.
The preferred power device includes the hydraulic cylinder connecting with mobile driving plate, which is fixed by hydraulic cylinder Pedestal is installed on experiment Ceiling.
Laboratory Module when for preventing mobile is equipped between moving stop and mobile driving plate on the outside of the experimental box The experimental box Mobility Center baffle of material leakage.
Further, spatial digitizer is installed, which passes through spatial digitizer bracket at the top of the Laboratory Module It is installed on the top of Laboratory Module.
The Laboratory Module is set in the centrifugal basket of centrifuge, is additionally provided with motion control apparatus on the centrifuge, should Motion control apparatus is connect by wired or wireless way with the computer outside centrifuge, while the motion control apparatus passes through conduction Line connects the experimental provision in hanging basket with signal wire.
The motion control apparatus is power control cabinet, which passes through outside wired or wireless way and centrifuge Computer connection, while the power control cabinet by conducting slip ring connect centrifuge outside rotation center hydraulic station and hydraulic control Cabinet, hydraulic station and hydraulic control cabinet respectively on centrifuge pivoted arm underground and conductor wire and signal wire connect, hydraulic line Road and conductor wire and signal wire are connect by slip ring with Laboratory Module.
Experimental method of the present invention for the strike-slip fault zone physical simulation experiment device of Elevated Gravity, including walk as follows It is rapid:
(1) before centrifuge operating, under normal gravity environment, it is laid with experimental material in experimental box and is installed to centrifuge and hangs In Laboratory Module in basket, related route is connected;
(2) it presets the revolving speed of centrifuge or directly sets gravity value, starting centrifuge waits for that its operating reaches setting gravity value When, power device drives power drive plate and the moving stop movement of experimental box bottom plate connection, the experimental material in experimental box It is able to dislocation deformation;
(3) deformation data of material in experimental box is recorded;
(4) structural deformation terminates, centrifuge stop motion, takes out experimental box and is studied.
The utility model has the advantages that compared with prior art, experimental provision of the invention is completed under normal gravity condition to infrastructure The arrangement of experimental material in physical simulation experiment case;Under the conditions of centrifugal force, simulation experiment of tectonics physics case two sides are moved Power device carries out automatically controlling, so that simulation experiment of tectonics physics case completes deep layer strike-slip fault zone physical simulation experiment, experimental box Interior strike-slip fault zone deforms physical simulation experiment process study, provides instant geological structure evolutionary process model for researcher.
Detailed description of the invention
Fig. 1 is the top view of strike-slip fault zone physical simulation experiment device of the present invention;
Fig. 2 is the A of strike-slip fault zone physical simulation experiment device of the present invention to side view;
Fig. 3 is the B in strike-slip fault zone physical simulation experiment of the present invention cabin to side view;
Fig. 4 is the structural schematic diagram of strike-slip fault zone physical simulation experiment device of the present invention under centrifuge Elevated Gravity.
Specific embodiment
Technical solution of the present invention is described further with reference to the accompanying drawing.
Simulation experiment of tectonics physics based on long-armed super-magnum centrifuge can not only highlight the stream of rock under Elevated Gravity Dynamic deformation effect, analog large scale infrastructure evolutionary process can be to be related to the infrastructure process simulation of LITHOSPHERIC SCALE There is provided maximally efficient research means, it is expected to as the important innovations research hand for solving the problems, such as the great basic theory of geoscience Section.But realize that power drive experimental box is inherently difficult under centrifuge environment, in 160g hypergravity ring below Border can be tested with motor driven, but the Elevated Gravity of 160-300g, motor cisco unity malfunction, and applicant attempts to use liquid Cylinder pressure driving.
The design that large scale simulation experiment of tectonics physics needs are much innovated is carried out under centrifuge environment, because of experimental box All parts all bear itself hundred times gravity influence, movable plate can due to big frictional force deformed damaged because from The load-bearing of scheming hanging basket is restricted, cannot infinitely thicken the thickness (increasing weight) of maneuvering board, the present invention not only solves this Problem can also realize the experiment simulation of deep layer strike-slip fault zone.
As shown in Figure 1-3, experimental provision of the invention includes the experimental box being located in Laboratory Module 3 and the power being attached thereto Device;Wherein, experimental box include positioned at front and rear sides experimental box fixed baffle 19 and be located at the experimental box fixed baffle 19 it Between two pieces of experimental box bottom plates 21, every piece of 21 two sides of experimental box bottom plate set moving stop 25 and mobile driving plate 24, two sides Moving stop 25 and the mobile dislocation of driving plate 24 arrangement, i.e., the left and right sides of one piece experimental box bottom plate 21 is respectively moving stop 25 With mobile driving plate 24, the left and right sides of another piece of experimental box bottom plate 21 is respectively mobile driving plate 24 and moving stop 25;It is real 21 bottom of tryoff bottom plate is installed on experimental box base plate rail 14 by experimental box bottom plate sliding block 20, and experiment material is laid in experimental box Material;Movable support frame 16 is located at 24 top of moving stop 25 and mobile driving plate, is equipped with weight at the top of experimental box fixed baffle 19 Sliding rail 17 is supported, 16 two sides of movable support frame are slided in weight support sliding rail 17 by weight support sliding block 18.Experimental box moves Dynamic center baffle 15 is vertically fixedly mounted between the moving stop 25 on the outside of experimental box and mobile driving plate 24, is moved for preventing Laboratory Module material leaks when dynamic.Power device includes the hydraulic cylinder 12 connecting with mobile driving plate 24, which passes through hydraulic Cylinder firm banking 13 is installed on 3 bottom plate of Laboratory Module.Under the action of power device, every piece of experimental box bottom plate 21 drives respectively respectively It is moved from the power drive plate 24 and moving stop 25 of connection, the experimental material in experimental box is able to dislocation deformation.Laboratory Module 3 pushes up Spatial digitizer 22 is installed in portion, which is installed on the top of Laboratory Module 3 by spatial digitizer bracket 23.
As shown in figure 4, Laboratory Module 3 is set in the centrifugal basket 2 of centrifuge 1, movement control is additionally provided on the centrifuge 1 Control equipment, which is connect by wired or wireless way with the computer 8 outside centrifuge 1, while the motion control Equipment connects the experimental provision in hanging basket by conductor wire and signal wire 9.
In specific implementation, motion control apparatus is power control cabinet 4, which passes through wired or wireless way It is connect with the computer 8 outside centrifuge 1, while the power control cabinet 4 connects the outer rotation center of centrifuge 1 by conducting slip ring 6 Hydraulic station 5 and hydraulic control cabinet 7, hydraulic station 5 and hydraulic control cabinet 7 respectively with the underground 10 on 1 pivoted arm of centrifuge and lead Electric wire and signal wire 9 connect, underground 10 and conductor wire and signal wire 9 by slip ring 11 with it is multiple hydraulic in Laboratory Module 3 Cylinder 12 connects, and Laboratory Module 3 is started to work after centrifuge runs to certain acceleration of gravity.
Experimental method:
(1) before the operating of centrifuge 1, under normal gravity environment, it is laid with experimental material in experimental box and is installed to centrifuge In Laboratory Module 3 in hanging basket (2), related route is connected;
(2) it presets the revolving speed of centrifuge 1 or directly sets gravity value, start centrifuge 1 to its operating and reach setting gravity When value, the power drive plate 24 and moving stop 25 that hydraulic cylinder 12 drives experimental box bottom plate 21 to connect are moved, in experimental box Experimental material is able to dislocation deformation;
(3) spatial digitizer 22 records the deformation data of material in experimental box;
(4) structural deformation terminates, 1 stop motion of centrifuge, takes out experimental box, carries out slice research.

Claims (8)

1. a kind of strike-slip fault zone physical simulation experiment device for Elevated Gravity, it is characterised in that: including being located at Laboratory Module (3) to arrange the experimental box of experimental material and the power device being attached thereto in, the experimental box includes being located at front and rear sides Experimental box fixed baffle (19) and two pieces of experimental box bottom plates (21) between the experimental box fixed baffle (19), every piece of reality Tryoff bottom plate (21) two sides respectively set moving stop (25) and mobile driving plate (24), the moving stop (25) of two sides and mobile driving Plate (24) dislocation arrangement, experimental box bottom plate (21) bottom is installed on experimental box bottom plate by experimental box bottom plate sliding block (20) and leads On rail (14);Under the action of power device, every piece of experimental box bottom plate (21) drives the power drive plate respectively connected respectively (24) it is moved with moving stop (25), the experimental material in experimental box is able to dislocation deformation.
2. experimental provision according to claim 1, it is characterised in that: further include positioned at moving stop (25) and mobile driving Movable support frame (16) at the top of plate (24), experimental box fixed baffle (19) top are equipped with weight support sliding rail (17), institute State the sliding in weight support sliding rail (17) by weight support sliding block (18) of movable support frame (16) two sides.
3. experimental provision according to claim 1, it is characterised in that: the power device includes and moves driving plate (24) The hydraulic cylinder (12) of connection, the hydraulic cylinder are installed on Laboratory Module (3) bottom plate by hydraulic cylinder firm banking (13).
4. experimental provision according to claim 1, it is characterised in that: the moving stop (25) on the outside of the experimental box The experimental box Mobility Center baffle (15) of Laboratory Module material leakage when for preventing mobile is equipped between mobile driving plate (24).
5. experimental provision according to claim 1, it is characterised in that: install spatial digitizer at the top of the Laboratory Module (3) (22), which is installed on the top of Laboratory Module (3) by spatial digitizer bracket (23).
6. experimental provision according to claim 1, it is characterised in that: the Laboratory Module (3) is set to the centrifugation of centrifuge (1) In machine hanging basket (2), it is additionally provided with motion control apparatus on the centrifuge (1), which passes through wired or wireless side Formula is connect with the computer (8) of centrifuge (1) outside, while the motion control apparatus connects hanging basket by conductor wire and signal wire (9) Interior experimental provision.
7. experimental provision according to claim 6, it is characterised in that: the motion control apparatus is power control cabinet (4), The power control cabinet (4) is connect by wired or wireless way with the computer (8) of centrifuge (1) outside, while the power control cabinet (4) hydraulic station (5) and hydraulic control cabinet (7) of centrifuge (1) outer rotation center, hydraulic station (5) are connected by conducting slip ring (6) With hydraulic control cabinet (7) respectively on centrifuge (1) pivoted arm underground (10) and conductor wire and signal wire (9) connect, liquid Crimping road (10) and conductor wire and signal wire (9) are connect by slip ring (11) with Laboratory Module (3).
8. a kind of experiment side using the strike-slip fault zone physical simulation experiment device for being used for Elevated Gravity described in claim 7 Method, it is characterised in that include the following steps:
(1) before centrifuge (1) operating, under normal gravity environment, it is laid with experimental material in experimental box and is installed to centrifuge and hangs In Laboratory Module (3) in basket (2), related route is connected;
(2) it presets the revolving speed of centrifuge (1) or directly sets gravity value, start centrifuge (1) to its operating and reach setting gravity When value, power device drives the power drive plate (24) and moving stop (25) movement of experimental box bottom plate (21) connection, experiment Experimental material in case is able to dislocation deformation;
(3) deformation data of material in experimental box is recorded;
(4) structural deformation terminates, centrifuge (1) stop motion, takes out experimental box and is studied.
CN201811323852.9A 2018-11-08 2018-11-08 Strike-slip fault zone physical simulation experiment device and experimental method for Elevated Gravity Pending CN109285436A (en)

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