CN110411821A - A kind of experimental rig of simulation earthquake subinverse Surface rupture of faults deformation - Google Patents
A kind of experimental rig of simulation earthquake subinverse Surface rupture of faults deformation Download PDFInfo
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- CN110411821A CN110411821A CN201910827960.8A CN201910827960A CN110411821A CN 110411821 A CN110411821 A CN 110411821A CN 201910827960 A CN201910827960 A CN 201910827960A CN 110411821 A CN110411821 A CN 110411821A
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- 238000004088 simulation Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 65
- 239000010959 steel Substances 0.000 claims abstract description 65
- 239000002689 soil Substances 0.000 claims abstract description 42
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
The invention discloses a kind of experimental rigs of simulation earthquake subinverse Surface rupture of faults deformation, comprising: soil body case, structural steel frame, limits device and actuator；Soil body case is fixed on structural steel frame, and the bottom plate of soil body case is divided into movable steel plate and fixation steel plate two parts；The surrounding of movable steel plate is movable.The middle section of contact activity lower surface of steel plate at the top of actuator；Movable steel plate plays the role of accepting the soil body under the promotion of actuator and pushes the soil body.A limits device is respectively set in movable steel plate two sides, when limits device rises top by actuator for constraining movable steel plate, is lifted at a certain angle with track, the lifting of the disk soil body on reversed fault in earthquake is simulated with this.The invention has the advantages that: error is within controlled range.Experimental phenomena is obvious, can operate repeatable strong, experimental result and previous research and experience is practical is consistent, can avoid to the building in earthquake rupture area and Resisting fractre design and construction provide foundation, reduction casualties and property loss.
Description
Technical field
The present invention relates to earthquake simulation test technical field, in particular to a kind of simulation earthquake subinverse Surface rupture of faults becomes
The experimental rig of shape.
Background technique
Ground Rupture of Strong Earthquakes effect is that the zone of fracture propagates to earth's surface under earthquake fault changing of the relative positions effect, and to earth's surface and near
The phenomenon that building structure damages or even collapses.Fault movement can cause overburden layer to deform, the deformation gesture of soil layer
It must threaten to the stability for the foundation for building buildings or structures thereon in, building need to be avoided or be resisted to this
Fracture design.Therefore, it carries out fault movement and causes overburden layer rupture development and near Faults building foundation failure mechanism
Research just has important engineering real value and scientific meaning.Wherein model test is a kind of important research means.
Currently, the experimental rig of common simulation fault movement exists mainly using Miniature servo-motors as loading device
Respective technological deficiency: (1) the loading device load power of analog unit bottom is smaller, can not preferably complete large scale, big
The tomography of scale is tested；(2) be difficult technically implementation model cabinet balance during loading, the uniform changing of the relative positions, thus
It is lower to will cause stringency of test；(3) more test simulation cabinet is small size, can not preferably reproduce fault movement
The upper true rupture event of earthing body down.
Summary of the invention
The present invention in view of the drawbacks of the prior art, provides a kind of test of simulation earthquake subinverse Surface rupture of faults deformation
Device solves defect existing in the prior art.
In order to realize the above goal of the invention, the technical solution adopted by the present invention is as follows:
A kind of experimental rig of simulation earthquake subinverse Surface rupture of faults deformation, comprising: counter-force floor, soil body case, fashioned iron
Frame, limits device and actuator；
Soil body case is cuboid container, for filling soil；Soil body case is fixed on structural steel frame, and structural steel frame bottom is fixed on
On counter-force floor；
The bottom plate of soil body case is divided into movable steel plate and fixation steel plate two parts；The surrounding of movable steel plate is movable, and
It is flexible coupling close to side clearance with canvas with surrounding, avoids native in loading procedure fall.
Actuator is arranged in structural steel frame, and under soil body case, actuator bottom is fixed on counter-force floor, and top contact is lived
The middle section of dynamic lower surface of steel plate；Movable steel plate plays the role of accepting the soil body under the promotion of actuator and pushes the soil body.
A limits device is respectively set in movable steel plate two sides, and limits device rises top by actuator for constraining movable steel plate
When, it is lifted at a certain angle with track, the lifting of the disk soil body on reversed fault in earthquake is simulated with this.
Further, limits device is made of angular adjustment apparatus and guiding device, and angular adjustment apparatus is weldingly fixed on
On structural steel frame, position is located at movable steel plate down either side, and guiding device is bolted with angular adjustment apparatus by two.
Angular adjustment apparatus is the square steel plate of thickness 30mm, and two of angular adjustment apparatus are diagonally respectively equipped with one group of spiral shell
Hole determines that the principle of straight line carries out angle control by different two o'clock screw holes.
The guiding device is by a block-shaped steel cylinder for hollow, rectangular body and the cunning of steel material that can be slided in steel cylinder
Block composition.Steel cylinder side is set there are two screw hole, is fixedly connected on the screw hole of angular adjustment apparatus with two bolt pins, sliding block
Upper end hingedly fixed with movable lower surface of steel plate, steel cylinder constrains movable steel plate for making sliding block form upward track
It is lifted angle and track.
Compared with the prior art, the advantages of the present invention are as follows:
Movable steel plate level of synchronization can rise at a certain angle under the constraint of guiding device, and error is in controlled range
Within.Experimental phenomena is obvious, can operate it is repeatable strong, experimental result with studied in the past and experience is practical is consistent.Utilize the present apparatus
The test and data analysis for carrying out a large amount of operating conditions, can be to the breakoff phenomenon and machine of the especially building of soil deformation near reversed fault
Reason has certain in-depth study, can avoid to the building in earthquake rupture area and Resisting fractre design and construction provide foundation, reduce people
Member's injures and deaths and property loss.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of experimental rig of the embodiment of the present invention；
Fig. 2 is the top view of soil body case of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of limits device of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of angular adjustment apparatus of the embodiment of the present invention；
Fig. 5 is the main view of steel cylinder of the embodiment of the present invention；
Fig. 6 is the top view of steel cylinder of the embodiment of the present invention.
Description of symbols: 1 is soil body case, and 2 be structural steel frame, and 3 be limits device, and 4 be actuator, and 5 be movable steel
Plate, 6 be fixation steel plate, and 7 be angular adjustment apparatus, and 8 be guiding device, and 9 be steel cylinder, and 10 be sliding block.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below according to attached drawing and embodiment is enumerated,
The present invention is described in further details.
As shown in Figure 1, 2, a kind of experimental rig of simulation earthquake subinverse Surface rupture of faults deformation, comprising: counter-force floor,
Soil body case 1, structural steel frame 2, limits device 3 and actuator 4 form,
Soil body case 1 is cuboid container, for filling soil；Soil body case 1 is fixed on structural steel frame 2, and 2 bottom of structural steel frame is solid
It is scheduled on counter-force floor；
The bottom plate of soil body case 1 is divided into 6 two parts of movable steel plate 5 and fixation steel plate；The surrounding of movable steel plate 5 is activity
, and be flexible coupling close to side clearance with canvas with surrounding, avoid native in loading procedure fall.
Actuator 4 is arranged in structural steel frame 2, and under soil body case 1,4 bottom of actuator is fixed on counter-force floor, and top connects
The middle section of 5 lower surface of touching activity steel plate；Movable steel plate 5 plays under the promotion of actuator 4 accepts the soil body and the promotion soil body
Effect.
Movable 5 two sides of steel plate are respectively set a limits device 3, and limits device 3 is for constraining movable steel plate 5 by actuator
4 fix position lifting at a certain angle.The lifting of the disk soil body on reversed fault in earthquake is simulated with this.
1 two sides of soil body case are the steel plates of 15mm thickness, face side be 12mm thickness the double-deck organic glass and 8mm thickness
The support of 80mm square steel tube.
As shown in figure 3, limits device 3 is made of angular adjustment apparatus 7 and guiding device 8, the welding of angular adjustment apparatus 7 is solid
It is scheduled on structural steel frame 2, position is located at 5 down either side of movable steel plate, and guiding device 8 and angular adjustment apparatus 7 pass through two spiral shells
It tethers and connects.
As shown in figure 4, angular adjustment apparatus 7 is the square steel plate of thickness 30mm, two of angular adjustment apparatus 7 are diagonal to be divided
Not She You one group of screw hole, by different two o'clock screw holes determine straight line principle carry out angle control, one group of the present embodiment
There are four screw hole, 30 °, 45 °, 60 °, 75 ° of angle change are realized.
As shown in Figure 5,6, the guiding device 8 can be slided by a block-shaped steel cylinder 9 for hollow, rectangular body and in steel cylinder 9
The sliding block 10 of dynamic steel material forms.9 side of steel cylinder is set there are two screw hole, is fixedly connected on angle adjustment with two bolt pins
On the screw hole of device 7, the upper end of sliding block 10 is hingedly fixed with 5 lower surface of movable steel plate, and steel cylinder 9 is for forming sliding block 10 upwards
Track, constrain lifting angle and the track of movable steel plate 5.
The experiment process of experimental rig of the present invention is as follows:
Layering is packed into clay, and compaction in layers in soil body case 3, and according to set testing program, different location is embedded in soil
Earth pressure gauge, the sensors such as accelerometer；And displacement sensor etc. can be placed in soil body overhead surface.Adjust actuator 4 and examination
It is identical and be consistent to test required angle.By control actuator 4 to set rate jacking when on-test, actuator 4 is jacked
Movable steel plate 5, movable steel plate 5 set rate under the constraint of guiding device 8 and raise soil layer.It is recorded and is pushed up with data collection system
The delta data of each sensor during rising；And observation analysis is carried out to experimental phenomena.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair
Bright implementation method, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.Ability
The those of ordinary skill in domain disclosed the technical disclosures can make its various for not departing from essence of the invention according to the present invention
Its various specific variations and combinations, these variations and combinations are still within the scope of the present invention.
Claims (2)
1. a kind of experimental rig of simulation earthquake subinverse Surface rupture of faults deformation characterized by comprising counter-force floor, soil
Body case, structural steel frame, limits device and actuator；
Soil body case is cuboid container, for filling soil；Soil body case is fixed on structural steel frame, and structural steel frame bottom is fixed on counter-force
On floor；
The bottom plate of soil body case is divided into movable steel plate and fixation steel plate two parts；The surrounding of movable steel plate is movable, and with four
Week is flexible coupling close to side clearance with canvas, avoids native in loading procedure fall；
Actuator is arranged in structural steel frame, and under soil body case, actuator bottom is fixed on counter-force floor, and top contacts movable steel
The middle section of plate lower surface；Movable steel plate plays the role of accepting the soil body under the promotion of actuator and pushes the soil body；
A limits device is respectively set in movable steel plate two sides, when limits device rises top by actuator for constraining movable steel plate,
It is lifted at a certain angle with track, the lifting of the disk soil body on reversed fault in earthquake is simulated with this.
2. a kind of experimental rig of simulation earthquake subinverse Surface rupture of faults deformation according to claim 1, feature exist
In: limits device is made of angular adjustment apparatus and guiding device, and angular adjustment apparatus is weldingly fixed on structural steel frame, position
Positioned at movable steel plate down either side, guiding device is bolted with angular adjustment apparatus by two；
Angular adjustment apparatus is the square steel plate of thickness 30mm, and two of angular adjustment apparatus are diagonally respectively equipped with one group of screw hole,
Determine that the principle of straight line carries out angle control by different two o'clock screw holes；
The guiding device is by a block-shaped steel cylinder for hollow, rectangular body and the sliding block group of steel material that can be slided in steel cylinder
At；Steel cylinder side is set there are two screw hole, is fixedly connected on the screw hole of angular adjustment apparatus with two bolt pins, upper end of slide block
It is hingedly fixed with movable lower surface of steel plate, steel cylinder constrains the lifting angle of movable steel plate for making sliding block form upward track
Degree and track.
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| CN201910827960.8A CN110411821B (en) | 2019-09-03 | 2019-09-03 | Test device for simulating reverse fault ground surface fracture deformation under earthquake |
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| CN201910827960.8A CN110411821B (en) | 2019-09-03 | 2019-09-03 | Test device for simulating reverse fault ground surface fracture deformation under earthquake |
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| CN110411821B CN110411821B (en) | 2024-03-19 |
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| CN111521364A (en) * | 2020-06-05 | 2020-08-11 | 防灾科技学院 | Bridge damage and damage simulation device under action of near fault seismic motion and simulation method thereof |
| CN113092047A (en) * | 2021-05-14 | 2021-07-09 | 北京工业大学 | Prefabricated assembled continuum model box for simulating underground structure under combined action of fault and seismic motion |
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| CN111521364A (en) * | 2020-06-05 | 2020-08-11 | 防灾科技学院 | Bridge damage and damage simulation device under action of near fault seismic motion and simulation method thereof |
| CN111473934B (en) * | 2020-06-05 | 2024-05-07 | 防灾科技学院 | Building avoiding distance simulation device and simulation method for fractured zone close to strong earthquake ground surface |
| CN111521364B (en) * | 2020-06-05 | 2024-05-10 | 防灾科技学院 | Bridge damage and destruction simulation device under near-fault earthquake action and simulation method thereof |
| CN113092047A (en) * | 2021-05-14 | 2021-07-09 | 北京工业大学 | Prefabricated assembled continuum model box for simulating underground structure under combined action of fault and seismic motion |
| CN113092047B (en) * | 2021-05-14 | 2022-10-11 | 北京工业大学 | Prefabricated assembled continuum model box for simulating underground structure under combined action of fault and seismic motion |
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| CN110411821B (en) | 2024-03-19 |
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