CN207036381U - A kind of horizontal earthquake shearing wave analogue means for considering resistance to shear of soil - Google Patents
A kind of horizontal earthquake shearing wave analogue means for considering resistance to shear of soil Download PDFInfo
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- CN207036381U CN207036381U CN201720775720.4U CN201720775720U CN207036381U CN 207036381 U CN207036381 U CN 207036381U CN 201720775720 U CN201720775720 U CN 201720775720U CN 207036381 U CN207036381 U CN 207036381U
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- cutting box
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- soil
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Abstract
The utility model discloses a kind of horizontal earthquake shearing wave analogue means for considering resistance to shear of soil, including：Base systems, horizontal shear simulation system and vertical loading system；The horizontal shear simulation system is positioned on base systems, and is positioned over the three-back-shaped loading inframe that vertical loading system is formed together；The horizontal shear simulation system includes some U-shaped cutting box mutually drawn, and close-packed arrays, the U-shaped cutting box combine the placement model soil body in the space formed to direction of transfer of the U-shaped cutting box along shearing wave successively；Vertical load is uniformly applied to the model soil body by the vertical loading system；The U-shaped cutting box does serpentine locomotion, dummy level shearing wave in the horizontal direction under thrust caused by horizontal shear simulation system.Device of the present utility model can be used for the model investigation that simulation earthquake shearing wave soil under action body and underground structure destroy.
Description
Technical field
It the utility model is related to geotechnical model experimental technique, in particular to a kind of horizontal earthquake shearing for considering resistance to shear of soil
Wave simulation device, the soil body or underground structure are destroyed for dummy level earthquake shearing wave.
Background technology
In geotechnological seismic resistance field, horizontal earthquake shearing wave causes the soil body and underground structure destruction to be important research classes
Topic.Especially for the failure damage mechanism of the linear underground structure of this kind of length in tunnel, lack effective physical simulation experiment side
Method and experimental facilities.And investigation live after calamity is difficult to grasp geological conditions information and the perimeter strip of underground structure comprehensively
Part, it is more difficult to which pre-buried sensor carries out the monitoring of key parameter before coming earthquake.When for problem expansion scaled model
During experimental study, how to take into full account that resistance to shear of soil level turns into the key of Study on Problems to its dynamic characteristics.Therefore, such as
Effective simulation that earthquake shearing wave causes the soil body and underground structure to destroy where is realized in scale-model experiment, and is taken into full account
Influence of the resistance to shear of soil level to dynamic characteristics, turn into the technology emphasis of related geotechnological earthquake research.
Utility model content
The purpose of this utility model is the deficiency for overcoming prior art, there is provided a kind of horizontal earthquake for considering resistance to shear of soil
Shearing wave analogue means, the horizontal simulation of resistance to shear of soil can be realized, and earthquake shearing wave can be simulated to the soil body or underground structure
Thing failure by shear, takes into full account the stress level correlation properties of soil body dynamic response, and definite principle, constructs simple, experiment behaviour
It is easily achieved.
Technical scheme is used by the utility model solves its technical problem：
A kind of horizontal earthquake shearing wave analogue means for considering resistance to shear of soil, including base systems, horizontal shear simulation system
System and vertical loading system；The horizontal shear simulation system is positioned on base systems, and is positioned over vertical loading together
The three-back-shaped loading inframe that system is formed；The base systems include bottom ball assembly, side wall and zigzag base；The water
Straight snips, which cuts simulation system, to be included U-shaped cutting box, top trough of belt load bar part and excites oil cylinder；The vertical loading system includes top
Portion's I-shaped reaction beam, anchor pole, bottom I-shaped reaction beam, vertical oil cylinder, top zigzag load plate and top ball assembly；
Some U-shaped cutting box close-packed arrays successively, for placing the model soil body in the space that common combination is formed；Institute
State and excite oil cylinder pushing top U-shaped cutting box to do horizontal reciprocating movement along shearing wave direction of vibration, and by between pin and groove
Mutually traction drives adjacent U-shaped cutting box, causes U-shaped cutting box to do serpentine locomotion, dummy level shearing wave in the horizontal direction；Institute
State and be provided with bottom belt channel bar below U-shaped cutting box, the bottom ball assembly is located at the bottom belt channel bar and zigzag bottom
Between seat；The top trough of belt load bar part is removably positioned over above U-shaped cutting box；The side wall is along shearing wave transmission side
To being fixed on zigzag base both sides；The top I-shaped reaction beam, anchor pole and bottom I-shaped reaction beam collectively form counter-force system
System, the top I-shaped reaction beam, vertical oil cylinder, top zigzag load plate, top ball assembly and top trough of belt load bar
Part is from top to bottom set up successively, for the model soil body being transferred to vertical load in U-shaped cutting box；The top I-shaped counter-force
Beam is connected to fix vertical oil cylinder and provides vertical counter-force with the vertical oil cylinder；The top I-shaped reaction beam and bottom work
Word reaction beam is connected by anchor pole, forms Back Word type loading frame；The top zigzag load plate is connected with the vertical oil cylinder
Active force is concentrated for carrying vertical oil cylinder；The top ball assembly is located at top trough of belt load bar part and top zigzag adds
Between support plate；The bottom I-shaped reaction beam be arranged at be used to bearing below the base systems base systems transmission get off it is perpendicular
To load.
Preferably, the U-shaped cutting box is made up of long 500mm, high 300mm, thick 20mm aluminium flake, and both sides are provided with triangle
Support bar, for limiting the lateral deformation of U-shaped cutting box at elevated pressures.
Preferably, the bottom belt channel bar both sides of middle U-shaped cutting box are respectively equipped with rectangular recess and rectangular preiection latch；Begin
The bottom belt channel bar side of end U shape cutting box sets rectangular preiection latch opposite side to be not provided with rectangular recess and filled by connecting
Put and excite oil cylinder to connect, it is convex that the bottom belt channel bar side of end U-shaped cutting box sets rectangular recess opposite side to be not provided with rectangle
Play latch；The rectangular recess size is bigger than rectangular preiection latch size.
Preferably, all closed on the outside of top U-shaped cutting box and end U-shaped cutting box by metallic plate.
Preferably, the smooth upper bands zigzag slot in the zigzag base bottom, for limiting the rolling of bottom ball assembly
Dynamic direction；The bottom belt channel bar upper flat lower bands V-shaped groove, the bottom ball assembly are located at the bottom belt channel bar
Between the zigzag slot of V-shaped groove and zigzag base, for ensuring the relative movement between U-shaped cutting box and zigzag base,
And the frictional force being subject to during reduction level relative movement；It is stimulated in U-shaped cutting box and the mistake of serpentine locomotion is carried out under oil cylinder drives
Cheng Zhong, the zigzag base transfixion.
Preferably, the smooth upper bands V-shaped groove in top trough of belt load bar part bottom, for vertical load uniformly to be applied
In the model soil body in U shape cutting box；The top zigzag load plate upper flat lower bands zigzag slot, it is perpendicular for carrying
Active force is concentrated to oil cylinder, and power is evenly transferred to the soil body in each U-shaped cutting box, limiting lower section cutting box can only be
Horizontal direction moves；The top ball assembly is located at the V-shaped groove and top zigzag of the top trough of belt load bar part
Between the zigzag slot of load plate, for ensuring the relative movement between U-shaped cutting box and top zigzag load plate, and reduce
The frictional force being subject to during level relative movement；During serpentine locomotion is carried out under U-shaped cutting box is stimulated oil cylinder drive, institute
State top zigzag load plate transfixion.
Preferably, described side wall is by long 1640mm, and high 330mm, thick 50mm aluminium sheet form, along shearing wave direction of transfer
Zigzag base both sides are fixed on, longitudinal effect of contraction is played to the combination of whole cutting box.Between two side walls it is relative away from
From can adjust, and then adjust the gap between adjacent U-shaped cutting box.
Preferably, the contact surface of two adjacent U-shaped cutting box uses lubricious material, to reduce rubbing between adjacent cutouts frame
Wipe.
Preferably, the top trough of belt load bar part uses lubricious material with U-shaped cutting box contact surface, to ensure top
Trough of belt loading rod member friction free in U-shaped cutting box freely up and down moves.
Preferably, it is described to excite oil cylinder piston to carry out horizontal reciprocating movement, can the waveform such as input-to-state stabilization；It is described to swash
The piston of hair oil cylinder connects with top U-shaped cutting box, and excites the direction of oil cylinder applying power and U-shaped cutting box length direction to put down
OK.
Preferably, replaceable various sizes of rectangular preiection latch on the bottom belt channel bar of the U-shaped cutting box, for adjusting
Relative shift between whole adjacent rectangle projection latch and rectangular recess, and then adjust the phase between two adjacent U-shaped cutting box
To displacement.
Preferably, described bottom zigzag base reaches 20mm, thinnest part by long 1460mm, wide 1400mm, thickness
The 10mm high-strength aluminium sheet composition of zigzag.
Preferably, described top zigzag load plate reaches 20mm, thinnest part by long 1460mm, wide 460mm, thickness
The 10mm high-strength aluminium sheet composition of zigzag.
Preferably, described top and bottom I-shaped reaction beam is formed by high-strength manganese steel Member Welding, is connected by anchor pole, structure
Frame is loaded into " returning " font, two vertical oil cylinders are installed under the I-shaped reaction beam of top.
The utility model is described in further detail below in conjunction with drawings and Examples, but one kind of the present utility model is examined
The horizontal earthquake shearing wave analogue means for considering resistance to shear of soil is not limited to embodiment.
Brief description of the drawings
Fig. 1 is the schematic diagram of device described in the utility model；
Fig. 2 is the side cut away view of device described in the utility model；
Fig. 3 is U-shaped cutting box schematic diagram described in the utility model；
Fig. 4 is two side U-shaped cutting box schematic diagrames in the U-shaped cutting box shown in Fig. 3；
Fig. 5 partial schematic diagrams that " pin-groove " connects between the adjacent U-shaped cutting box shown in Fig. 3；
Fig. 6 be device described in the utility model ball assembly arrange profile, wherein a be zigzag base with it is U-shaped
Bottom ball assembly arrangement between cutting box, top ball sets of the b between zigzag load plate and top trough of belt load bar
Part is arranged.
Reference：1st, base systems, 2, horizontal shear simulation system, 3, vertical loading system, 11, bottom ball set
Part, 12, zigzag base, 13, side wall, 21, top U-shaped cutting box, 22, middle U-shaped cutting box, 221, triangular support struts,
222nd, bottom belt channel bar, 223, metallic plate, 224, rectangular preiection latch, 225, rectangular recess, 23, top trough of belt load bar part,
24th, oil cylinder is excited, 25, end U-shaped cutting box, 31, top I-shaped reaction beam, 32, anchor pole, 33, vertical oil cylinder, 34, top saw
Dentation load plate, 35, top ball assembly, 36, bottom I-shaped reaction beam.
Embodiment
Principle of the present utility model and feature are described further below in conjunction with accompanying drawing.
Technical problem to be solved in the utility model is that vertical seismic action shearing wave can only be simulated to soil by being different from tradition
Body crash simulation device, the utility model can provide a kind of horizontal earthquake shearing wave analogue means for considering resistance to shear of soil, can be with
Dummy level earthquake shearing wave is to soil body failure by shear.
Referring to shown in Fig. 1 to Fig. 6, a kind of horizontal earthquake shearing wave analogue means for considering resistance to shear of soil, including pedestal system
System 1, horizontal shear simulation system 2 and vertical loading system 3.The horizontal shear simulation system 2 by some U-shaped cutting box along
The direction of transfer of shearing wave close-packed arrays successively, combine the placement model soil body in the space of composition；The horizontal shear simulation system
System 2 is positioned on base systems 1, and is positioned over " returning " font loading inframe that vertical loading system 3 is formed together.
Specifically, the base systems 1 include bottom ball assembly 11, zigzag base 12 and side wall 13.The sawtooth
The smooth upper bands zigzag slot in the bottom of shape base 12, is fixed on bottom plate, and the bottom ball is neatly put in zigzag V-shaped groove
Component 11, limit the rotating direction of bottom ball assembly 11；The bottom ball assembly 11 is located at the bottom trough of belt of U-shaped cutting box
Between bar 222 and zigzag base 12, with the frictional force being subject to during reduction level relative movement；Side wall 13 is along shearing wave transmission side
To the both sides of zigzag base 12 are fixed on, the relative distance between two side walls 13 can be adjusted, and then adjusted adjacent U-shaped and cut
Cut the gap between frame.
Specifically, horizontal shear simulation system 2 includes U-shaped cutting box, top trough of belt load bar part 23 and excites oil cylinder 24.
The U-shaped cutting box both sides are provided with triangular support struts 221, for limiting the lateral deformation of U-shaped cutting box at elevated pressures； U
It is provided with removable top trough of belt load bar 23 at the top of shape cutting box, the smooth upper bands V-shaped groove in the bottom of top trough of belt load bar 23,
For vertical load to be uniformly applied into the model soil body in U-shaped cutting box, to ensure that top trough of belt load bar part 23 is cut in U shapes
Cut inframe friction free freely up and down to move, both contact surfaces use lubricious material；The U-shaped cutting box is divided into by arrangement position
Top U-shaped cutting box 21, middle U-shaped cutting box 22 and end U-shaped cutting box 25, wherein, middle U-shaped cutting box 22 has multiple.
The both sides of bottom belt channel bar 222 of the middle U-shaped cutting box 22 are respectively equipped with rectangular recess 225 and rectangular preiection latch 224；Begin
The side of bottom belt channel bar 222 of end U-shaped cutting box 21 sets the opposite side of rectangular preiection latch 224 to be not provided with rectangular recess 225 simultaneously
By attachment means with exciting oil cylinder 24 to be connected, the side of bottom belt channel bar 222 of end U-shaped cutting box 25 sets rectangular recess
225 opposite sides are not provided with rectangular preiection latch 224；The size of rectangular recess 225 is bigger than the size of rectangular preiection latch 224；Begin
End U-shaped cutting box 21 and end U-shaped cutting box 25 are closed by metallic plate 223；Oil cylinder 24 is excited to carry out horizontal reciprocating movement,
Piston connects with top U-shaped cutting box 21, and the direction and the length direction of top U-shaped cutting box 21 for exciting the applying power of oil cylinder 24 are put down
OK；The contact surface of two adjacent U-shaped cutting box uses lubricious material, to reduce the friction between adjacent cutouts frame, bottom trough of belt
Replaceable various sizes of rectangular preiection latch 224 on bar 222, for adjusting adjacent rectangle projection latch 224 and rectangular recess
Relative shift feasible value between 225, and then adjust the relative shift feasible value between two adjacent U shapes cutting box.
Specifically, the vertical loading system includes top I-shaped reaction beam 31, anchor pole 32, vertical oil cylinder 33, top saw
Dentation load plate 34, top ball assembly 35 and bottom I-shaped reaction beam 36.The top I-shaped reaction beam 31, vertical oil cylinder
33rd, top zigzag load plate 34, top ball assembly 35 and top trough of belt load bar 23 are from top to bottom set up successively, for inciting somebody to action
Load is transferred to the model soil body from top to bottom；Top I-shaped reaction beam 31 is used to fix vertical oil cylinder 33 and provides vertical counter-force；
Anchor pole 32 is used to connect top I-shaped reaction beam 31 and bottom I-shaped reaction beam 36, forms " returning " font loading frame；Vertical oil cylinder
33 are used to apply vertical load to the soil body in U-shaped cutting box；The upper flat lower bands zigzag slot of top zigzag load plate 34,
Active force is concentrated for carrying vertical oil cylinder 33, and power is evenly transferred to the soil body in each U-shaped cutting box；Top ball set
Part 35 is located between top trough of belt load bar part 23 and top zigzag load plate 34, is subject to when being relatively moved so that reduction is horizontal
Frictional force；Bottom I-shaped reaction beam 36 is used to bear the vertical load that base systems transmission is got off.
The experimental method that the utility model solves above-mentioned technical problem is as follows：
1st, base systems and bottom ball assembly are arranged, fixed all U-shaped cutting box, keeps relatively quiet with base systems
Only；
2nd, an open top rubber bag is placed in the space that U-shaped cutting box is formed, rubber bag uses flexible rubber
Prepared by the thin mould of glue, to being vacuumized between U-shaped cutting box and rubber bag, rubber bag is brought into close contact with U-shaped cutting box；
3rd, the layering compacting model soil body or placement underground structure model in rubber bag；
4th, model soil body top surface puts a series of top trough of belt load bars successively, and load bar is covered with whole model soil body top
Face；
5th, top ball assembly and top zigzag load plate are sequentially arranged, drives vertical oil cylinder, the model soil body is applied
Predetermined vertical load；
6th, the horizontal displacement constraint of all U-shaped cutting box is cancelled；
7th, driving excites oil cylinder, sets target waveform signal, drives all U-shaped cutting box to carry out earthquake shearing wave simulation；
8th, experiment is completed, the model soil body or underground structure model are destroyed and are observed.
Above-described embodiment is intended merely to illustrate the utility model, and is not used as to restriction of the present utility model.As long as
According to the technical essence of the utility model, above-described embodiment is changed, modification etc. will all fall in right of the present utility model
In the range of it is required that.
Claims (11)
1. a kind of horizontal earthquake shearing wave analogue means for considering resistance to shear of soil, it is characterised in that cut including base systems, level
Cut simulation system and vertical loading system；The horizontal shear simulation system is positioned on base systems, and is positioned over together
The three-back-shaped loading inframe that vertical loading system is formed；The base systems include bottom ball assembly, side wall and zigzag bottom
Seat；The horizontal shear simulation system includes U-shaped cutting box, top trough of belt load bar part and excites oil cylinder, and some U-shapeds are cut
Frame close-packed arrays successively are cut, are used to place the model soil body in the space that common combination is formed；The vertical loading system includes top
Portion's I-shaped reaction beam, anchor pole, bottom I-shaped reaction beam, vertical oil cylinder, top zigzag load plate and top ball assembly；
It is described to excite oil cylinder pushing top U-shaped cutting box to do horizontal reciprocating movement along shearing wave direction of vibration, and pass through pin and groove
Between mutual traction drive adjacent U-shaped cutting box, cause U-shaped cutting box to do serpentine locomotion, simulation water straight snips in the horizontal direction
Cut ripple；Bottom belt channel bar is provided with below the U-shaped cutting box, the bottom ball assembly is located at the bottom belt channel bar and saw
Between serrated base；The top trough of belt load bar part is removably positioned over above U-shaped cutting box；The side wall is along shearing wave
Direction of transfer is fixed on zigzag base both sides；The top I-shaped reaction beam, vertical oil cylinder, top zigzag load plate, top
Portion's ball assembly and top trough of belt load bar part are from top to bottom set up successively；The top I-shaped reaction beam and the vertical oil cylinder
It is connected to fix vertical oil cylinder and vertical counter-force is provided；The top I-shaped reaction beam passes through anchor pole with bottom I-shaped reaction beam
It is connected, forms Back Word type loading frame；The top zigzag load plate is connected to carry vertical oil cylinder with the vertical oil cylinder
Concentrate active force；The top ball assembly is located between top trough of belt load bar part and top zigzag load plate；The bottom
Portion's I-shaped reaction beam, which is arranged at below the base systems, to be used to bear the vertical load that base systems transmission is got off.
2. the horizontal earthquake shearing wave analogue means according to claim 1 for considering resistance to shear of soil, it is characterised in that：It is described
U-shaped cutting box both sides are provided with triangular support struts.
3. the horizontal earthquake shearing wave analogue means according to claim 1 for considering resistance to shear of soil, it is characterised in that middle
The bottom belt channel bar both sides of U-shaped cutting box are respectively equipped with rectangular recess and rectangular preiection latch；The bottom belt of top U-shaped cutting box
Channel bar side sets rectangular preiection latch opposite side to be not provided with rectangular recess and by attachment means with exciting oil cylinder to be connected, end
The bottom belt channel bar side of U-shaped cutting box sets rectangular recess opposite side to be not provided with rectangular preiection latch；The rectangular recess chi
It is very little bigger than rectangular preiection latch size.
4. the horizontal earthquake shearing wave analogue means according to claim 1 for considering resistance to shear of soil, it is characterised in that top
All closed on the outside of U-shaped cutting box and end U-shaped cutting box by metallic plate.
5. the horizontal earthquake shearing wave analogue means according to claim 1 for considering resistance to shear of soil, it is characterised in that：It is described
The smooth upper bands zigzag slot in zigzag base bottom, the bottom belt channel bar upper flat lower bands V-shaped groove, the bottom rolling
Pearl component is between the V-shaped groove of the bottom belt channel bar and the zigzag slot of zigzag base.
6. the horizontal earthquake shearing wave analogue means according to claim 1 for considering resistance to shear of soil, it is characterised in that：It is described
The smooth upper bands V-shaped groove in top trough of belt load bar part bottom, the top zigzag load plate upper flat lower bands zigzag
Groove, the top ball assembly are located at the V-shaped groove of the top trough of belt load bar part and the zigzag of top zigzag load plate
Between groove.
7. the horizontal earthquake shearing wave analogue means according to claim 1 for considering resistance to shear of soil, it is characterised in that：Two
Relative distance between side wall can be adjusted, and then adjust the gap between adjacent U-shaped cutting box.
8. the horizontal earthquake shearing wave analogue means according to claim 1 for considering resistance to shear of soil, it is characterised in that：Two-phase
The contact surface of adjacent U-shaped cutting box uses lubricious material.
9. the horizontal earthquake shearing wave analogue means according to claim 1 for considering resistance to shear of soil, it is characterised in that：It is described
Top trough of belt load bar part uses lubricious material with U-shaped cutting box contact surface.
10. the horizontal earthquake shearing wave analogue means according to claim 1 for considering resistance to shear of soil, it is characterised in that：Institute
State and excite the piston of oil cylinder to connect with top U-shaped cutting box, and excite direction and the U-shaped cutting box length direction of oil cylinder applying power
It is parallel.
11. the horizontal earthquake shearing wave analogue means according to claim 2 for considering resistance to shear of soil, it is characterised in that：Institute
Replaceable various sizes of rectangular preiection latch on the bottom belt channel bar of U-shaped cutting box is stated, adjacent rectangle is raised to insert for adjusting
Relative shift between pin and rectangular recess, and then adjust the relative shift between two adjacent U-shaped cutting box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720775720.4U CN207036381U (en) | 2017-06-29 | 2017-06-29 | A kind of horizontal earthquake shearing wave analogue means for considering resistance to shear of soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720775720.4U CN207036381U (en) | 2017-06-29 | 2017-06-29 | A kind of horizontal earthquake shearing wave analogue means for considering resistance to shear of soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207036381U true CN207036381U (en) | 2018-02-23 |
Family
ID=61466405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720775720.4U Withdrawn - After Issue CN207036381U (en) | 2017-06-29 | 2017-06-29 | A kind of horizontal earthquake shearing wave analogue means for considering resistance to shear of soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207036381U (en) |
-
2017
- 2017-06-29 CN CN201720775720.4U patent/CN207036381U/en not_active Withdrawn - After Issue
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180223 Effective date of abandoning: 20230505 |
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| AV01 | Patent right actively abandoned |
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