CN107993549A - Earthquake triggering underwater landslide disaster simulation test platform - Google Patents
Earthquake triggering underwater landslide disaster simulation test platform Download PDFInfo
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- CN107993549A CN107993549A CN201711455460.3A CN201711455460A CN107993549A CN 107993549 A CN107993549 A CN 107993549A CN 201711455460 A CN201711455460 A CN 201711455460A CN 107993549 A CN107993549 A CN 107993549A
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- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
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Abstract
The invention discloses a kind of Earthquake triggering underwater landslide disaster simulation test platform, it is made of shake table, sink, sedimentation basin, the vibration table of shake table and sink are connected as an entirety, in table vibration, sink will not vibrate therewith, landslide body Model only on vibration table vibrates therewith, then causes destruction.Because water does not transmit shearing force, shake table size only needs to meet test model size, saves space and cost, is more avoided that the influence that ripples are turned back to experimental phenomena and result of the test.And the test method of sink is placed on a vibration table, it is difficult to eliminate the water disturbance produced because of sink wall vibrations, the water body of disturbance can form ripples of turning back and act on the body Model of landslide, cause model to destroy.
Description
Technical field
The present invention relates to Marine Geology engineering field, and in particular to a kind of Earthquake triggering underwater landslide is formed and motion process
Analogue test platform.
Background technology
Submarine landslide is a kind of extremely strong marine geologic disasters of destructive power, with sliding speed is fast, coasting distance is remote, destroys
The characteristics of property is strong.Earthquake is one of most important triggering factors, and China marine site is in violent earthquake band, in China's marine oil and gas
Resource accelerates under the background of exploitation, and the research to Earthquake triggering submarine landslide is as the great of national marine engineering safety field
Strategic Demand.For ensure ocean engineering run smooth and the security of the lives and property, study and prevent the submarine landslide of Earthquake triggering
It is an important issue.The progress of problem needs to carry out physical experiments, is touched from qualitative and quantitative angle Study of Seismic
Send out the origin mechanism and migration rule of submarine landslide, it is therefore desirable to a kind of Earthquake triggering underwater landslide disaster simulation test platform.
Research on submarine landslide includes acoustic equipment detection, physical experiments and numerical experiments.At present, by
In the limitation of environmental condition and technical conditions, people are also difficult to observe directly the destructive process of submarine slope, meanwhile, Numerical-Mode
Intend experiment since field data finite sum boundary condition is difficult to determine so that the reliability of analog result need to be improved, therefore,
Physical experiments are still to study the main means of submarine landslide.Domestic and foreign scholars have done numerous studies work, explore and propose
Many beneficial methods and conclusion, such as early stage Mohrig use the glass wall sink of angle adjustable, and are respectively provided with soft, hard
The flowing of two kinds of bottom surface material simulation chip stream.The sand of low-density has been carried out similar flume test by Laval etc.,.Marr
Influence of the content of clay and water to mud flow behavior Deng ad hoc analysis.Elverhoi etc. uses for reference the flume test side of forefathers
Method, respectively to high (25%), in (15%), low (5%) three different brackets clay content mud analog result carried out pair
Than.Vendeville etc. using high porosity sand, clay and sticky silicon polymer simulation landslide soil layer, analysis pore pressure with
Trigger condition of the ramp angles to submarine landslide.Ilstad etc. has obtained consistent with reality on the basis of forefathers' testing program
Chip stream front portion " separating phenomenon ".Zakeri etc. simulates the chip stream of submarine landslide generation to submarine pipeline using flume test
Impact influence.The turbidity current fluid motion process by analysis of experiments such as Zhang Chunsheng.Yang Linqing is ground using large-scale drum centrifuge
Slip velocity and aqueous magnitude relation are studied carefully.In conclusion for physical experiments, drum centrifuge is ideal tester
Device, but test apparatus is expensive at present, and experiment process is costly, the country only one, and vibration limits are difficult to realize；For it
His physical experiments, scholars simulate landslide slip using mud is toppled over to Lentic environment mostly, belong to two dimensional model
Simulation, and it is unable to the forming process on simulated sea bottom landslide.Therefore need to set up a kind of BED-SOIL UNDER EARTHQUAKE ACTION bottom landslide simulation test
Platform, for the origin mechanism and migration rule of Study of Seismic triggering submarine landslide.
The content of the invention
The purpose of the present invention is overcome the shortcomings of conventional art, there is provided a kind of simulation examination of Earthquake triggering underwater landslide disaster
Test platform, solve that test platform at this stage is complicated, bulky, result differs larger problem with actual so that test
Phenomenon is more directly perceived, and test data is more accurate.
The present invention is made of shake table, sink, sedimentation basin, and the power-equipment of shake table includes oil pump station and accumulation of energy group.Oil
Pumping plant and accumulation of energy group are by oil pipe and pipeline and horizontal direction actuator and are connected vertically to actuator；Horizontal direction actuator and vertical
To actuator, it is installed on vertically to actuator on pedestal, pedestal is located in heatable adobe sleeping platform, and the vibration table of shake table passes through the water of sink
Slot bottom, the upper plane at sink bottom is concordant with the upper plane of vibration table, and the contact position of sink bottom and vibration table is connected with rubber
Material and the sealing of sealing rod band, ensure that shake table junction in vibration is waterproof；Being erect in sink has water level stake；Sedimentation basin position
In the side of sink；The madial wall of sink covers wave absorption material, and sink has sink bottom into/discharge outlet and flume wall into/draining
Mouthful, sink bottom is connected into/discharge outlet by drainage channel and row/water inlet pipe with sedimentation basin.
The wave absorption material is single or multiple lift interlaced arrangement.
The bottom of sink is equipped with one into/discharge outlet, sets one below the side wall of sink again into/discharge outlet, and water is the bottom of from
Portion is injected, rather than is toppled over above sink, and the material of sink needs to select organic glass or other materials, sink according to observation
Middle setting water level stake, sink surrounding placement wave absorption material.Sedimentation basin is arranged at into/discharge outlet lower section, for storing water source, recycling
Sand, water reuse, and prevent pollution environment.
The specific implementation process of the present invention：
1st, place is selected, center earth excavation 100cm × 100cm × 80cm is selected after leveling, foundation pit, which is used to place, to be vibrated
The horizontal direction actuator of platform, vertically to devices such as actuator, pedestals.At the length of side center of foundation pit side, along earth's surface to perpendicular to
The edge direction excavates the groove section of wide × a height of 15cm × 15cm, long for placing the oil circuit and cable of connection oil pump and accumulation of energy group
Degree is more than 150cm, and specific required design, will consider the waterproof of equipment, should be away from sink certain distance.
2nd, shake table is disposed, vibration table is connected with horizontal direction actuator and vertically to devices such as actuator, then it is solid
On pedestal, oil pipe and oil pump station, electric wire and accumulation of energy group are connected.
3rd, sink is built by laying, the upper surface of sink bottom surface and vibration table is in same level, sink edge and shake table
Edge, which stays, sets 3cm, for the free space of shake table vibration, sink bottom set diameter 5cm into/osculum, under flume wall
Portion set again diameter 5cm into/osculum.Sink is length of side 300cm, the cube of high 120cm.Pacify in inboard wall of cistern
Water level stake is put, being capable of clear observed stage scale.
4th, connection water channel and vibration table, are connected, junction use stops using stretchable compressible rubber connecting material
Water bar band waterproof.Elastomeric material is thin, crimp height is as far as possible small, so ensure elastomeric material stretching and compression process in it is not right
Water body produces disturbance.
5th, porous wave absorption material is placed in flume wall surrounding, is turned back using porous media wave absorption principle elimination ripples bad
Influence.Wave absorption material is long, high long, high consistent with sink, reflects influence of the ripples to experiment in order to prevent, flat corresponding to this experiment
Platform sink and shake table scale, wave absorption material optimal thickness are 30cm, and the about 30 layers of plastic ring that is staggered form, every layer of plastic ring
Spacing 1cm, plastics loop-shaped are major axis 2cm, short axle 1.5cm ellipse.
6th, sedimentation basin is repaiied beside sink, sedimentation basin scale is 200cm × 200cm × 150cm, in sedimentation basin bottom surface and four walls
Using brick and masonry of cement mortar, sink bottom is connected into/discharge outlet with sedimentation basin, discharge and precipitation for water in sink
The injection of water when there is regimen condition in pond, below flume wall into/discharge outlet be used for sedimentation basin anhydrous condition when water injection.Use water
Pump carries out water filling, and the injecting process is slow, prevents from damaging landslide body Model.
Advantages of the present invention and effect：
1st, three-dimensional landslide body Model is established on the shake table in test platform rather than topples over mud, can be used special
Sand rain device establish landslide body Model, real submarine soil depositional environment is simulated and before landslide occurs by acting by external hydrostatic pressure
Original state.Sink provides clear and intuitive slip mass from the process for starting to destroy to end is slided, and truly simulates
Formation and motion process of the underwater landslide under compressional wave and shear wave effect during earthquake.Meanwhile with reference to corresponding miniature penetrometer, hole
Gap water pressure probe, soil pressure sensor, wave pressure force snesor, survey shock sensors, viscosimeter, flow rate measuring device etc.,
The Study of Landslides body Mechanism of Deformation And Failure and migration rule that can be quantified.
2nd, vibration table and sink are connected as an entirety, sink will not vibrate therewith in table vibration, only platform
Landslide body Model on face vibrates therewith, then causes destruction.Because water does not transmit shearing force, shake table size only needs
Meet test model size, save space and cost, be more avoided that the shadow that ripples are turned back to experimental phenomena and result of the test
Ring.And the test method of sink is placed on a vibration table, it is difficult to eliminate the water disturbance produced because of sink wall vibrations, disturb
Water body can be formed ripples of turning back act on landslide body Model on, cause model to destroy.
3rd, rectangle sink is suitable for the experiment of simulating two-dimensional landslide, is tested for the modeling of three-dimensional slip mass, square
Shape sink more meets actual, more dominant.
4th, the configuration of the present invention is simple, small volume, will not occupy too large space, low cost.Sedimentation basin provides sharp again
Sand and water, will not cause the excess waste of material, not pollute the environment.Test operation is easy, and result of the test is relatively reliable.
Brief description of the drawings
Fig. 1 is the top view of the present invention.
Fig. 2 is the front view of the present invention.
Fig. 3 is the left view of the present invention.
Fig. 4 individual layer wave absorption material schematic diagrames.
Fig. 5 wave absorption material interlaced arrangement figures.
Wherein：1-sink；2-sink bottom；3-vibration table；4-rubber connecting material；5-sealing rod band；61-water
Slot bottom is into/discharge outlet；62-flume wall is into/discharge outlet；7-water level stake；8-vertically to actuator；9-horizontal direction actuator；
10-pedestal；11-oil pump station；12-accumulation of energy group；13-oil pipe；14-pipeline passway；15-heatable adobe sleeping platform；16-drainage channel；
17-row/water inlet pipe；18-sedimentation basin；19-wave absorption material；20-shake table.
Embodiment
Please refer to Fig.1, shown in Fig. 2 and Fig. 3, the present invention is made of shake table 20, sink 1, sedimentation basin 18, shake table 20
Power-equipment include oil pump station 11 and accumulation of energy group 12.Oil pump station 11 and accumulation of energy group 12 pass through oil pipe 13 and pipeline 14 and level
Connected to actuator 9 and vertically to actuator 8；Horizontal direction actuator 9 and vertically to actuator 8, is installed on to actuator 8 vertically
On pedestal 10, pedestal 10 is located in heatable adobe sleeping platform 15, and the vibration table 3 of shake table 20 passes through the sink bottom 2 of sink 1, sink bottom 2 it is upper
Plane is concordant with the upper plane of vibration table 3, and the contact position of sink bottom 2 and vibration table 3 is with rubber connecting material 4 and sealing rod
Band 5 seals, and ensures that the junction in vibration of shake table 20 is waterproof；Being erect in sink 1 has water level stake 7；Sedimentation basin 18 is located at water
The side of groove 1；The madial wall of sink 1 covers wave absorption material 19, and sink 1 has sink bottom into/discharge outlet 61 and flume wall into/row
The mouth of a river 62, sink bottom are connected into/discharge outlet 61 by drainage channel 16 and row/water inlet pipe 17 with sedimentation basin 18.
As shown in Figure 4 and Figure 5, the wave absorption material 19 is single or multiple lift interlaced arrangement.
The bottom of sink 1 is equipped with one into/discharge outlet 61, sets one below the side wall of sink 1 again into/discharge outlet 62,
Water is injected from bottom, rather than is toppled over above sink, and the material of sink 1 needs to select organic glass or other materials according to observation
Expect, water level stake 7, sink surrounding placement wave absorption material are set in sink 1.Sedimentation basin 18 is arranged at into/the lower section of discharge outlet 61, is used for
Water source is stored, recycling sand, water reuse, and prevent pollution environment.
The specific implementation process of the present invention：
1st, place is selected, center earth excavation 100cm × 100cm × 80cm is selected after leveling, foundation pit, which is used to place, to be vibrated
The horizontal direction actuator 9 of platform 20, vertically to devices such as actuator 8, pedestals 10.At the length of side center of foundation pit side, along earth's surface to
The groove section of wide × a height of 15cm × 15cm is excavated perpendicular to the edge direction, for placing the oil circuit and electricity of connection oil pump and accumulation of energy group
Cable, length are more than 150cm, and specific required design, will consider the waterproof of equipment, should be away from sink certain distance.
2nd, shake table 20 is disposed, vibration table 3 is connected with horizontal direction actuator 9 and vertically to the grade device of actuator 8,
It is fixed on again on pedestal 10, connects oil pipe and oil pump station 11, electric wire and accumulation of energy group 12.
3rd, sink 1 is built by laying, the upper surface of sink bottom surface 2 and vibration table 3 is in same level, and 1 edge of sink is with shaking
Dynamic 20 edge of platform, which stays, sets 3cm, for the free space of shake table vibration, sink bottom 2 set diameter 5cm into/osculum 61,
Flume wall lower part set again diameter 5cm into/osculum 62.Sink 1 is length of side 300cm, the cube of high 120cm.
1 inner wall of sink disposes water level stake 7, being capable of clear observed stage scale.
4th, connection water channel 1 and vibration table 3, are connected using stretchable compressible rubber connecting material 4, and junction uses
5 waterproof of sealing rod band.Elastomeric material is thin, crimp height is as far as possible small, and then ensures in elastomeric material stretching and compression process
Disturbance is not produced to water body.
5th, porous wave absorption material 19 is placed in 1 wall surrounding of sink, eliminates what ripples were turned back using porous media wave absorption principle
Harmful effect.Wave absorption material 19 is grown, is high long, high consistent with sink, influence of the ripples to experiment is reflected in order to prevent, corresponding to this
20 scale of test platform sink 1 and shake table, 19 optimal thickness of wave absorption material are 30cm, the about 30 layers of plastic ring group that is staggered
Into every layer of plastic ring spacing 1cm, plastics loop-shaped is major axis 2cm, short axle 1.5cm ellipse.
6th, sedimentation basin 18 is repaiied on the side of sink 1, and 18 scale of sedimentation basin is 200cm × 200cm × 150cm, at 18 bottom of sedimentation basin
Face and four walls use brick and masonry of cement mortar, 1 bottom of sink are connected into/discharge outlet 61 with sedimentation basin 18, in sink 1
The injection of water when the discharge of water and sedimentation basin 18 have regimen condition, below 1 wall of sink into/that discharge outlet 62 is used for sedimentation basin 18 is anhydrous
The injection of water during situation.Water filling is carried out using water pump, the injecting process is slow, prevents from damaging landslide body Model.
Claims (2)
- A kind of 1. Earthquake triggering underwater landslide disaster simulation test platform, it is characterised in that：Be by shake table (20), sink (1), Sedimentation basin (18) forms, and the power-equipment of shake table (20) includes oil pump station (11) and accumulation of energy group (12)；Oil pump station (11) and storage Energy group (12) is connected by oil pipe (13) and pipeline (14) with horizontal direction actuator (9) and vertically to actuator (8)；Horizontal direction is made Move device (9) and vertically to actuator (8), be installed on vertically to actuator (8) on pedestal (10), pedestal (10) is located at heatable adobe sleeping platform (15) Interior, the vibration table (3) of shake table (20) passes through the sink bottom 2 of sink (1), upper plane and the vibration table (3) at sink bottom 2 Upper plane is concordant, and sink bottom 2 and the contact position of vibration table (3) are sealed with rubber connecting material (4) and sealing rod band (5), are protected It is waterproof to demonstrate,prove shake table (20) junction in vibration；Being erect in sink (1) has water level stake 7；Sedimentation basin (18) is located at sink (1) Side；The madial wall of sink (1) covers wave absorption material (19), and sink (1) has sink bottom into/discharge outlet (61) and flume wall Into/discharge outlet (62), sink bottom passes through drainage channel (16) and row/water inlet pipe (17) and sedimentation basin (18) into/discharge outlet (61) Connection.
- A kind of 2. Earthquake triggering underwater landslide disaster simulation test platform according to claim 1, it is characterised in that：It is described Wave absorption material (19) be single or multiple lift interlaced arrangement.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108731894A (en) * | 2018-06-20 | 2018-11-02 | 天津大学 | A kind of structure for eliminating underwater shake table waterproof perturbation wave |
| CN109813512A (en) * | 2018-12-19 | 2019-05-28 | 国网江苏省电力有限公司经济技术研究院 | A kind of wave absorber for centrifuge modelling test case |
| CN109990966A (en) * | 2019-04-28 | 2019-07-09 | 北京博科测试系统股份有限公司 | A kind of Underwater Parallel shake table |
| CN110634374A (en) * | 2019-08-27 | 2019-12-31 | 中国地质大学（武汉） | Physical model experiment device for simulating deformation and damage process of building on landslide |
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| CN203561633U (en) * | 2013-11-29 | 2014-04-23 | 三峡大学 | Three-dimensional artificial rainfall reservoir type physical slide model test equipment |
| CN104751725A (en) * | 2015-04-21 | 2015-07-01 | 河海大学 | Side slope landslide teaching demonstration device and experiment method |
| CN208256156U (en) * | 2017-12-28 | 2018-12-18 | 吉林大学 | Earthquake triggering underwater landslide disaster simulation test platform |
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| CN203250463U (en) * | 2013-05-27 | 2013-10-23 | 苏州创捷传媒展览股份有限公司 | Experience device for simulating earthquake |
| CN203561633U (en) * | 2013-11-29 | 2014-04-23 | 三峡大学 | Three-dimensional artificial rainfall reservoir type physical slide model test equipment |
| CN104751725A (en) * | 2015-04-21 | 2015-07-01 | 河海大学 | Side slope landslide teaching demonstration device and experiment method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731894A (en) * | 2018-06-20 | 2018-11-02 | 天津大学 | A kind of structure for eliminating underwater shake table waterproof perturbation wave |
| CN108731894B (en) * | 2018-06-20 | 2024-03-05 | 天津大学 | Eliminate structure of waterproof disturbance wave of vibrating table under water |
| CN109813512A (en) * | 2018-12-19 | 2019-05-28 | 国网江苏省电力有限公司经济技术研究院 | A kind of wave absorber for centrifuge modelling test case |
| CN109813512B (en) * | 2018-12-19 | 2020-11-20 | 国网江苏省电力有限公司经济技术研究院 | Wave absorbing device for centrifuge model box |
| CN109990966A (en) * | 2019-04-28 | 2019-07-09 | 北京博科测试系统股份有限公司 | A kind of Underwater Parallel shake table |
| CN110634374A (en) * | 2019-08-27 | 2019-12-31 | 中国地质大学（武汉） | Physical model experiment device for simulating deformation and damage process of building on landslide |
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Application publication date: 20180504 |
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