CN109470501A - A kind of similar reconstruction model experimental provision and method based on three-dimensional geological exploration - Google Patents

A kind of similar reconstruction model experimental provision and method based on three-dimensional geological exploration Download PDF

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CN109470501A
CN109470501A CN201811245032.2A CN201811245032A CN109470501A CN 109470501 A CN109470501 A CN 109470501A CN 201811245032 A CN201811245032 A CN 201811245032A CN 109470501 A CN109470501 A CN 109470501A
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printing
dimensional
dimensional geological
data
geological
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滕腾
刘飞
倪晓燕
龚鹏
冯宇
雷鸣
郭瑞
张磊
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China University of Mining and Technology Beijing CUMTB
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China University of Mining and Technology Beijing CUMTB
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/007Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing

Abstract

The invention discloses a kind of similar reconstruction model experimental provisions and method based on three-dimensional geological exploration, the three-dimensional geological information of survey region is verified using three-dimensional geological detection device, then by three-dimensional geological information, input three-dimensional data reconfiguration system, it is reconstructed into three-dimensional data information, inputs 3D printing device;It determines the corresponding analog material of different geological structures and proportion, then determines survey region three-dimensional formation section geological information according to by the three-dimensional data information;3D printing coal petrography, and the installation data monitoring device in 3D printing coal petrography are printed in model support according to geometric similarity ratio and the bulk density likelihood ratio by 3D printing device;Start hydraulic loaded unit, applies load;The corresponding practical ground activity condition in scene, carries out analogue simulation, and in the active procedure, acquires the data in data monitoring device, to accurately reflect subterranean strata truth and rock stratum activity, while realizing stress, more time-varying monitorings of displacement and analysis.

Description

A kind of similar reconstruction model experimental provision and method based on three-dimensional geological exploration
Technical field
The present invention relates to a kind of similar reconstruction model experimental provisions and method based on three-dimensional geological exploration, belong to underground rock Lapicide's journey physical simulation experiment field.
Background technique
In mine resources recovery process, " under three " exploit overlying strata subsidence control and ecology of mining areas reparation has become coal row The great demand of industry and country.It is accurate to predict stope sand coated iron mold feature and migration due to geology occurrence condition complicated and changeable Rule, rock mass fracture growth situation, ground settlement feature, mine pressure and its shows and drastically influence Surface structure, traffic And the safety in overlying rock water-bearing layer and surface water body.
In underground engineering field, analog simulation test has become grind at present due to simple and effective, clear intuitive feature Study carefully the important means of geotechnical model internal modification destructive characteristics and stress Evolution under sound load action.However, at present by The reasons such as, monitoring device opaque in analog material and means are backward, cause in experimentation, can not be whole to entire model Stress, the monitoring of more time-varying of displacement and analysis.Geotechnical model internal modification destructive characteristics and multiple under sound load action at present The missing of miscellaneous stress Evolution key parameter, which drastically influences, exploits overlying strata subsidence control and ecology of mining areas reparation " under three ".
Moreover, it due to physical simulation experiment since size limits, is laid with and needs to adjust not according to drilling situation Simulation material with rock stratum matches, and after then stirring, is manually laid on physical simulation experiment frame, is laid with low precision, it is difficult to anti- Reflect truth.
Therefore, there is an urgent need to research and develop a kind of sound load mutative scale similarity model test and more Dynamic Changes Analysis systems System realizes that stress, more time-varying of displacement monitor and analysis, including at the monitoring of multinode dynamic response, whole audience vector quantization data Reason.
Summary of the invention
The object of the present invention is to provide it is a kind of based on three-dimensional geological exploration similar reconstruction model experimental provision and method, with Subterranean strata truth and rock stratum activity are accurately reflected, while realizing stress, more time-varying monitorings of displacement and analysis.
To achieve the above object, a kind of similar reconstruction model experiment dress based on three-dimensional geological exploration that the present invention uses Set, including three-dimensional geological exploration system, three-dimensional data reconfiguration system, 3D printing device, 3D printing component, system for monitoring displacement, Stress monitoring system, model support, hydraulic loading system;
The three-dimensional geological exploration system includes three-dimensional geological detection device and visits for receiving three-dimensional geological detection device The three-dimensional data reception device for the data measured;
The three-dimensional geological signal reconstruct that the three-dimensional data reconfiguration system detects three-dimensional geological exploration system is at three dimensions It is believed that breath, then by the three-dimensional data information input to the 3D printing device;
The 3D printing component includes 3D printing coal rock layer, and 3D printing coal rock layer is by the 3D printing device according to three dimensions It is believed that ceasing geometric similarity ratio, stress similitude ratio and the corresponding 3D of bulk density likelihood ratio parameter selection for determining every layer of rock stratum and coal seam Printed material proportion prints;
The hydraulic loading system includes hydraulic loaded unit and the hydraulic loaded unit being arranged in above the model support The hydraulic control system of connection;
The system for monitoring displacement system includes the displacement measuring points that 3D printing coal petrography layer surface is arranged in, is placed in 3D printing coal Digital camera in front of rock stratum;
The stress monitoring system includes stress collector and the stress that is attached thereto and is embedded in 3D printing coal rock layer Measurement sensor.
Further, further include temperature and humidity control system, temperature and humidity control system include temperature sampler and It multiple temperature sensors being embedded in in 3D printing coal rock layer for being attached thereto, humidity collector and is attached thereto multiple The humidity sensor being embedded in in 3D printing coal rock layer.
Further, the hydraulic loaded unit is fixed on the crossbeam above the model support, and the two of model support Side is equipped with hydraulic column, and the both ends of crossbeam are separately fixed on the hydraulic column of two sides.
Further, the 3D printing component further includes model support, and model support is by PROE software design scale model frame shape Shape and size import 3D printing device and print.
A kind of similar reconstruction model experimental method based on three-dimensional geological exploration that the present invention uses, includes the following steps:
A. the three-dimensional geological information of survey region is verified using three-dimensional geological detection device, which at least wraps Include formation lithology, geological structure, rock stratum physico-mechanical properties, rock mass fracture growth situation, body of groundwater occurrence condition;
B. three-dimensional geological information derived from three-dimensional data reception device acquisition three-dimensional geological detection device, inputs three-dimensional data Reconfiguration system, and by three-dimensional data reconfiguration system by three-dimensional geological signal reconstruct at three-dimensional data information, then by three dimension According to information input 3D printing device;
C. the corresponding analog material of different geological structures and proportion are determined, is then determined according to by the three-dimensional data information Survey region three-dimensional formation section geological information;
D. 3D printing coal is printed according to geometric similarity ratio and the bulk density likelihood ratio in model support by 3D printing device Rock, and the installation data monitoring device in 3D printing coal petrography, and be attached thereto equipped with data acquisition device;
E. start hydraulic loaded unit, load is applied to 3D printing coal rock layer according to data of the stress similitude than by weight of;
F. the corresponding practical ground activity condition in scene, is imitated according to geometric similarity ratio in 3D printing coal rock layer corresponding position True simulation, and in the active procedure, acquire the data in data monitoring device.
Further, the data monitoring device in the step d includes temperature sensor, humidity sensor and pressure sensing Device, data acquisition device include respectively temperature sampler corresponding with temperature sensor, humidity sensor and pressure sensor, Humidity collector and pressure acquisition devices.
Further, the intensity of 3D printing coal rock layer is obtained with temperature, the relationship of humidity, and in the step according to experiment In f, when temperature and humidity makes the intensity of 3D printing coal rock layer reach similar parameter, analogue simulation is then carried out.
Further, the model support in the step d is printed by 3D printing device.
Further, in the step f, pass through the stress inside stress monitoring system real-time monitoring 3D printing coal rock layer point Cloth rule, deformation-failure character and energy evolution rule.
The present invention proposes a kind of similar reconstruction model experimental provision and method based on three-dimensional geological exploration, is suitable for underground Geotechnical engineering physical simulation experiment.Survey region geologic aspects can be verified by three-dimensional geological, press one by 3D printing Geometric similarity is determined than coal rock layer more similar than the printing plane of survey region with stress similitude, and the scale model after printing is carried out Geotechnical engineering movable analogue simulation in underground can prejudge ground settlement deformation rule, ground caused by underground excavation in advance Body deformation-failure character, Rock And Soil pressure manifestation, seepage action of ground water rule etc. mention for the design and construction of underground geotechnical engineering For reliable scientific basis.
The physics mould of arbitrary section inside the geotechnical engineering of survey region underground under complex geological condition may be implemented in the present invention Quasi- test, the activity of simulation rock stratum is accurate and reliable, has important practical study guiding value.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the similar reconstruction model experimental provision based on three-dimensional geological exploration of the present invention;
Fig. 2 is a kind of schematic illustration of the similar reconstruction model experimental method based on three-dimensional geological exploration of the present invention;
In figure: 11. first hydraulic control systems, 12. hydraulic loaded units, 13. crossbeams, 14. hydraulic columns, 141. second liquid Pressure control system;2. model support, 3.3D prints coal rock layer, 41. temperature sensors, 411. temperature samplers, 42. humidity sensors Device, 421. humidity collectors, 43. displacement measuring points, 431. digital cameras, 44. stress monitoring sensors, 441. stress collectors; 51. three-dimensional geological detection device, 52. three-dimensional data reception devices, 53. three-dimensional data reconfiguration systems;6. stratigraphic section.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Subterranean strata is accumulated from level to level by the rock stratum of multilayer different configuration, the lithology of every layer of rock stratum, thickness, physics Mechanical property is different, and in very long Geologic Time, by different geological movements, forms such as crack, solution cavity, underground The different geological structure such as water;In underground mine recovery process, these geological structures are very big to exploitation work influence, and mesh In preceding layer during similar model test, mostly it is that experimenter depicts two-dimensional bottom section situation according to drilling situation, then adjusts The ratio of section simulation material simulates each layer of rock stratum or coal seam respectively, is then laid on model support, and this experiment method is difficult With accurate reproduction on-site actual situations.
As shown in Figure 1, a kind of similar reconstruction model experimental provision based on three-dimensional geological exploration of the present invention, including dimensionally Matter exploration system, three-dimensional data reconfiguration system, 3D printing device, 3D printing component, system for monitoring displacement, stress monitoring system, Model support, hydraulic loading system;
Three-dimensional geological exploration system includes three-dimensional geological detection device and goes out for receiving three-dimensional geological detection Data three-dimensional data reception device;Three-dimensional geological detection device by physical prospecting, probing and change visit device combined application and At.Physical prospecting application three-dimensional geological radar, the principle is as follows: electromagnetic wave can generate on the different dielectric interface of dielectric constant Reflection emits electromagnetic wave using an antenna, another antenna receives the back wave from underground medium interface, according to reception To the two way travel time of wave, amplitude and waveform information etc., the distribution situation of underground medium is inferred;Probing is taken using deep drilling machine The section on stratum is live, by inspection instrument for borehole, Borehole Electromagnetic Wave Techniques tomography CT technology, to verify the reality of underground medium Border distribution situation;Change the preservation characteristic and movement visited and further verify underground water according to isotope analysis, trace element analysis Rule.By three-dimensional geological detection device come Underground rock stratum situation, including formation lithology, geological structure, rock stratum physical force The conditions such as property, rock mass fracture growth situation, body of groundwater occurrence condition are learned, and reflect each geological structure situation in detail Position, shape and size;
Three-dimensional data reconfiguration system believes the three-dimensional geological signal reconstruct that three-dimensional geological exploration system detects at three-dimensional data Breath, then by the three-dimensional data information input to 3D printing device;The three-dimensional data information includes to be able to reflect different rock stratum Other geology such as thickness, crack spatial distribution and geometric dimension in rock stratum, the spatial distribution of body of groundwater and geometric dimension The spatial distribution of construction and the STL data of geometric dimension;
3D printing component includes 3D printing coal rock layer, 3D printing coal rock layer by 3D printing device according to three-dimensional data information, Determine the geometric similarity ratio, stress similitude ratio and the corresponding 3D printing material of bulk density likelihood ratio parameter selection of every layer of rock stratum and coal seam Material proportion prints;For the layer during similar model test of this field, wherein geometric similarity ratio, stress similitude ratio are similar with bulk density It can determine that this place is repeated no more according to different experimental conditions than those skilled in the art;Before experiment, it should pass through Experiment or referring to previous experimental conditions is configured to the phase of varying strength and bulk density to select different similar material mixtures Like material, the analog material that 3D printing device uses generally chooses the materials such as gypsum, sand, talcum powder, water, can between rock stratum To be separated using mica powder;
Hydraulic loading system includes the liquid that hydraulic loaded unit above model support is arranged in, connect with hydraulic loaded unit Pressure control system;Hydraulic loaded unit can be multiple hydraulic loaded cylinders, and load plate is installed in hydraulic loaded cylinder lower end;It is hydraulic to add Carrier unit can be controlled by the first hydraulic control system;Since the size of model support is limited, when simulating deeper rock stratum, Superposed rock stratum can not be printed, the rock stratum of lower part is only printed, is corresponding pressure by the gravity reduction of top rock stratum Power is applied on 3D printing coal rock layer by hydraulic loaded unit;
System for monitoring displacement system includes the displacement measuring points that 3D printing coal petrography layer surface is arranged in, is placed in 3D printing coal rock layer The digital camera in front;The situation of change that displacement measuring points can be recorded by digital camera handles analysis displacement by software Monitoring result;
Stress monitoring system includes stress collector and the stress measurement that is attached thereto and is embedded in 3D printing coal rock layer Sensor.
Since analog material is in different temperature and humidities, intensity can change, in order to guarantee 3D printing coal The intensity of each section is exactly setting value in rock stratum, so that simulation layer during similar model test result is more accurate, further, also Including temperature and humidity control system, temperature and humidity control system include temperature sampler and are attached thereto multiple pre-buried Temperature sensor, humidity collector in 3D printing coal rock layer and what is be attached thereto multiple be embedded in 3D printing coal rock layer In in humidity sensor;Temperature sensor and humidity sensor monitor the temperature and humidity in 3D printing coal rock layer.
When hydraulic loaded unit is located above model, it is easy to interfere 3D printer work, further, hydraulic loaded list Member is fixed on the crossbeam above model support, and the two sides of model support are equipped with hydraulic column, and the both ends of crossbeam are separately fixed at two On the hydraulic column of side;Hydraulic column can be controlled by the second hydraulic control system, so as to raise-lower hydraulic loading unit;Together When the height of 3D printing coal rock layer is lower or higher, hydraulic loaded unit can be used.
Further, 3D printing component further includes model support, model support by PROE software design scale model frame shape and Size imports 3D printing device and prints.Model support is printed by 3D printing device, can be integrally formed, in experimentation In, it is compared with conventional model frame, eliminates the workload much loaded and unloaded, greatly reduce the set-up time.
A kind of similar reconstruction model experimental method based on three-dimensional geological exploration that the present invention uses, includes the following steps:
A. the three-dimensional geological information of survey region is verified using three-dimensional geological detection device, which at least wraps Include formation lithology, geological structure, rock stratum physico-mechanical properties, rock mass fracture growth situation, body of groundwater occurrence condition;
B. three-dimensional geological information derived from three-dimensional data reception device acquisition three-dimensional geological detection device, inputs three-dimensional data Reconfiguration system, and by three-dimensional data reconfiguration system by three-dimensional geological signal reconstruct at three-dimensional data information, then by three dimension According to information input 3D printing device;
C. the corresponding analog material of different geological structures and proportion are determined, is then determined according to by the three-dimensional data information Survey region three-dimensional formation section geological information;
D. 3D printing coal is printed according to geometric similarity ratio and the bulk density likelihood ratio in model support by 3D printing device Rock, and the installation data monitoring device in 3D printing coal petrography, and be attached thereto equipped with data acquisition device;
E. start hydraulic loaded unit, load is applied to 3D printing coal rock layer according to data of the stress similitude than by weight of;
F. the corresponding practical ground activity condition in scene, it is all in the progress of 3D printing coal rock layer corresponding position according to geometric similarity ratio Such as exploitation, supporting analogue simulation, and in the active procedure, acquire the data in data monitoring device.
Further, the data monitoring device in step d includes temperature sensor, humidity sensor and pressure sensor, Data acquisition device includes temperature sampler corresponding with temperature sensor, humidity sensor and pressure sensor, humidity respectively Collector and pressure acquisition devices.
Further, the intensity of 3D printing coal rock layer is obtained with temperature, the relationship of humidity according to experiment, and in step f, When temperature and humidity makes the intensity of 3D printing coal rock layer reach similar parameter, analogue simulation is then carried out.
Further, the model support in step d is printed by 3D printing device.
Further, it in step f, is advised by the stress distribution inside stress monitoring system real-time monitoring 3D printing coal rock layer Rule, deformation-failure character and energy evolution rule.
The present invention proposes a kind of similar reconstruction model experimental provision and method based on three-dimensional geological exploration, is suitable for underground Geotechnical engineering physical simulation experiment.Survey region geologic aspects can be verified by three-dimensional geological, press one by 3D printing Geometric similarity is determined than coal rock layer more similar than the printing plane of survey region with stress similitude, and the scale model after printing is carried out Geotechnical engineering movable analogue simulation in underground can prejudge ground settlement deformation rule, ground caused by underground excavation in advance Body deformation-failure character, Rock And Soil pressure manifestation, seepage action of ground water rule etc. mention for the design and construction of underground geotechnical engineering For reliable scientific basis.
The physics mould of arbitrary section inside the geotechnical engineering of survey region underground under complex geological condition may be implemented in the present invention Quasi- test, the activity of simulation rock stratum is accurate and reliable, has important practical study guiding value.

Claims (9)

1. a kind of similar reconstruction model experimental provision based on three-dimensional geological exploration, it is characterised in that: explored including three-dimensional geological System, three-dimensional data reconfiguration system, 3D printing device, 3D printing component, system for monitoring displacement, stress monitoring system, model support, Hydraulic loading system;
The three-dimensional geological exploration system includes three-dimensional geological detection device and goes out for receiving three-dimensional geological detection Data three-dimensional data reception device;
The three-dimensional data reconfiguration system believes the three-dimensional geological signal reconstruct that three-dimensional geological exploration system detects at three-dimensional data Breath, then by the three-dimensional data information input to the 3D printing device;
The 3D printing component includes 3D printing coal rock layer, and 3D printing coal rock layer is believed by the 3D printing device according to three-dimensional data Cease geometric similarity ratio, stress similitude ratio and the corresponding 3D printing material of bulk density likelihood ratio parameter selection for determining every layer of rock stratum and coal seam Material proportion prints;
The hydraulic loading system includes that hydraulic loaded unit above the model support is arranged in, connect with hydraulic loaded unit Hydraulic control system;
The system for monitoring displacement system includes the displacement measuring points that 3D printing coal petrography layer surface is arranged in, is placed in 3D printing coal rock layer The digital camera in front;
The stress monitoring system includes stress collector and the stress measurement that is attached thereto and is embedded in 3D printing coal rock layer Sensor.
2. a kind of similar reconstruction model experimental provision based on three-dimensional geological exploration according to claim 1, feature exist In: it further include temperature and humidity control system, temperature and humidity control system include temperature sampler and be attached thereto multiple The temperature sensor that is embedded in in 3D printing coal rock layer, humidity collector and what is be attached thereto multiple be embedded in 3D printing coal petrography Humidity sensor in layer.
3. a kind of similar reconstruction model experimental provision based on three-dimensional geological exploration according to claim 2, feature exist In: the hydraulic loaded unit is fixed on the crossbeam above the model support, and the two sides of model support are equipped with hydraulic column, horizontal The both ends of beam are separately fixed on the hydraulic column of two sides.
4. a kind of similar reconstruction model experimental provision based on three-dimensional geological exploration according to claim 3, feature exist In: the 3D printing component further includes model support, and model support imports 3D by PROE software design scale model frame shape and size Printing equipment prints.
5. a kind of similar reconstruction model experimental method based on three-dimensional geological exploration, characterized by the following steps:
A. the three-dimensional geological information of survey region is verified using three-dimensional geological detection device, which includes at least ground Layer lithology, geological structure, rock stratum physico-mechanical properties, rock mass fracture growth situation, body of groundwater occurrence condition;
B. three-dimensional geological information derived from three-dimensional data reception device acquisition three-dimensional geological detection device, input three-dimensional data reconstruct System, and by three-dimensional data reconfiguration system by three-dimensional geological signal reconstruct at three-dimensional data information, then the three-dimensional data is believed Breath input 3D printing device;
C. the corresponding analog material of different geological structures and proportion are determined, then determines research according to by the three-dimensional data information Area three-dimensional stratigraphic section geological information;
D. 3D printing coal petrography is printed according to geometric similarity ratio and the bulk density likelihood ratio in model support by 3D printing device, and The installation data monitoring device in 3D printing coal petrography, and be attached thereto equipped with data acquisition device;
E. start hydraulic loaded unit, load is applied to 3D printing coal rock layer according to data of the stress similitude than by weight of;
F. the corresponding practical ground activity condition in scene, carries out emulation mould in 3D printing coal rock layer corresponding position according to geometric similarity ratio It is quasi-, and in the active procedure, acquire the data in data monitoring device.
6. a kind of similar reconstruction model experimental method based on three-dimensional geological exploration according to claim 5, feature exist In: the data monitoring device in the step d includes temperature sensor, humidity sensor and pressure sensor, data acquisition dress It sets including temperature sampler corresponding with temperature sensor, humidity sensor and pressure sensor, humidity collector and pressure respectively Power collector.
7. a kind of similar reconstruction model experimental method based on three-dimensional geological exploration according to claim 6, feature exist In: the intensity of 3D printing coal rock layer is obtained with temperature, the relationship of humidity according to experiment, and in the step f, when temperature and wet When degree makes the intensity of 3D printing coal rock layer reach similar parameter, analogue simulation is then carried out.
8. a kind of similar reconstruction model experimental method based on three-dimensional geological exploration according to claim 7, feature exist In: the model support in the step d is printed by 3D printing device.
9. a kind of similar reconstruction model experimental method based on three-dimensional geological exploration according to claim 8, feature exist In: it is broken by the stress distribution law inside stress monitoring system real-time monitoring 3D printing coal rock layer, deformation in the step f Bad feature and energy evolution rule.
CN201811245032.2A 2018-10-24 2018-10-24 A kind of similar reconstruction model experimental provision and method based on three-dimensional geological exploration Pending CN109470501A (en)

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Application publication date: 20190315