CN207946207U - A kind of experimental rig of buried tank liquefaction uplifting - Google Patents
A kind of experimental rig of buried tank liquefaction uplifting Download PDFInfo
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- CN207946207U CN207946207U CN201820077292.2U CN201820077292U CN207946207U CN 207946207 U CN207946207 U CN 207946207U CN 201820077292 U CN201820077292 U CN 201820077292U CN 207946207 U CN207946207 U CN 207946207U
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- Prior art keywords
- oil tank
- tank
- model casing
- buried tank
- buried
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model discloses a kind of experimental rigs of buried tank liquefaction uplifting, it solves the problems, such as that buried tank liquefaction uplifting test efficiency is relatively low in the prior art, buried tank liquefaction uplifting displacement and the relationship of trapped fuel amount are still not clear, the floating of buried tank can effectively be responded Study of Seismic liquefaction, the relationship of the displacement of buried tank floating and trapped fuel amount can be obtained, the floating displacement of the excess pore water pressure and buried tank in saturation soil layer can be monitored in real time；Its technical solution is：Including visual model casing, saturated sand is filled in the inside of model casing, and oil tank is arranged in saturated sand；The bottom of model casing is equipped with vertical loading system, and the both sides of model casing are equipped with horizontal addload system, and from loading system Controlling model case to horizontal, vertical direction vibration, the floating to simulate oil tank under different effect of vibration responds.
Description
Technical field
The utility model is related to a kind of experiment of underground engineering seismic resistance field more particularly to buried tank liquefaction uplifting dresses
It sets.
Background technology
China has a vast territory, and geological conditions is various, widely distributed liquable saturated sand and saturation silt place.
The phenomenon that saturated sand and saturation silt can occur earthquake liquefaction, emit water with sandblasting in seismic process, while can cause ground
The depression of table and the floating of underground structure.Buried tank is a kind of typical underground structure, if oil tank is in liquefiable soil layer
Interior, when an earthquake occurs, oil tank can be floated due to the buoyancy of saturation soil layer, will certainly cause crude oil leakage, explosion and fire
Etc. disasters.
《Seismic design provision in building code》Sentencing for liquefaction soil layers is all defined in many countries such as GB50011 and professional standard
Other method, it was also proposed that the method for many Liquefaction Grounds processing.Have much for the research method of earthquake liquefaction at present, there is experience
The methods of laws for criterion, model testing method and numerical analysis, but still have the following problems：
(1) mechanism that earthquake liquefaction causes buried tank to float is still not clear；
(2) the liquefaction uplifting model test apparatus of buried tank is considerably less；
(3) buried tank liquefaction uplifting displacement and the relationship of oil tank trapped fuel amount are still not clear.
In conclusion in the prior art for how to carry out the problem of buried tank liquefaction uplifting is tested, still lack effective
Solution.
Utility model content
A kind of experiment dress of in order to overcome the deficiencies of the prior art, the utility model provides buried tank liquefaction uplifting
It sets, can effectively the floating of buried tank be responded Study of Seismic liquefaction, the displacement of buried tank floating and trapped fuel can be obtained
The relationship of amount can monitor the floating displacement of the excess pore water pressure and buried tank in saturation soil layer in real time.
The utility model uses following technical proposals：
The inside filling of a kind of experimental rig of buried tank liquefaction uplifting, including visual model casing, model casing is full
And sand, oil tank is set in saturated sand；The bottom of model casing is equipped with vertical loading system, and the both sides of model casing are equipped with horizontal add
Loading system, from loading system Controlling model case to horizontal, vertical direction vibration, the floating for simulating oil tank under different effect of vibration is rung
It answers；
The top of the oil tank is equipped with water injection pipe, and water injection pipe extends to the outside of saturated sand；By water injection pipe to oil tank
The water of middle injection different volumes simulates the operating mode of different trapped fuel amounts.
Further, there is water level sensor in the oil tank, the trapped fuel amount of oil tank can be measured in real time.
Further, the oil tank is made of organic glass, and water injection pipe is equipped with valve.
Further, the model casing is positioned over the top of shake table, and the bottom of shake table connects vertical loading system, shakes
The both sides of dynamic platform connect horizontal addload system；The side bottom of model casing is equipped with water outlet.
Further, multiple sensor for pore water pressure are set in the saturated sand, acceleration transducer is arranged in the top of oil tank,
The both sides of oil tank are equipped with displacement sensor.
Further, the sensor for pore water pressure, acceleration transducer and displacement sensor connect data by data line and adopt
Collecting system is used for real-time monitoring test data.
The test method of the experimental rig of buried tank liquefaction uplifting, includes the following steps：
Step (1) washing moulding case and oil tank are debugged, demarcate each sensor and data collecting system, get out level side
To the seismic wave acceleration information with vertical direction；
Model casing is fixed on shake table top by step (2), and by displacement sensor, water level sensor and acceleration sensing
Device is fixed on oil tank corresponding position；
Step (3) prepares liquable saturated sand, and sensor for pore water pressure is buried at set depth；Oil tank is put into mould
Molding box, it is d that the soil thickness that covers is filled out on oil tank top, be injected separately into oil tank 1/4,1/2,3/4 and full volume oil institute it is equivalent
The tap water of volume simulates different trapped fuel amount operating modes；
Step (4) connects acceleration transducer, sensor for pore water pressure, the data line of displacement sensor and data collecting system
It connects, and debugs for use；
Step (5) stands 24 hours；
Step (6) log-on data acquisition system and loading system, loading level or vertical seismic wave or loading level+
Vertical seismic wave carries out earthquake dynamic test；
Loading system and data collecting system are closed in step (7) off-test, preserve data；
Step (8) is discharged water by the water outlet of model casing, clears up testing ground；
Step (9) handles data.
Further, in the step (3), water is added first into model casing, allows the water surface to reach setting height, with sand rain method
Saturated sand soil layer is prepared, when reaching setting height, oil tank is put into model casing, continues to be sprinkled into sand and reaches scheduled height.
Compared with prior art, the utility model has the beneficial effects that：
(1) the utility model can realize buried tank under horizontal earthquake, vertical earthquake, level+vertical geological process
Floating response test, can carry out floating displacement and the relationship of trapped fuel amount is tested, and the design for buried tank in Liquefaction Ground carries
For test basis；And experimental rig is simple, convenient, improves test efficiency；
(2) oil tank of the utility model is equipped with water filling port, and the water of different volumes is added by water filling port, the body of water is added
Product is equivalent by trapped fuel volume, can simulate experiment when different trapped fuel amounts, and will not cause danger, will not pollute ring
Border；
(3) the utility model can input different seismic datas, obtain the upper of buried tank under different Degree of Liquefaction
Floating experiment；
(4) the utility model passes through the evolution of the super pore pressure of soil layer during sensor for pore water pressure record experiment, test soil
The liquefaction situation of layer；The acceleration responsive of buried tank and the acceleration responsive of soil layer are recorded by acceleration transducer；And
It is equipped with displacement sensor on buried tank, the floating displacement time-history curves of seismic process buried tank can be obtained.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
Fig. 1 is the main part structural schematic diagram of the utility model；
Fig. 2 is the vertical view of the utility model；
Wherein, 1- data collecting systems, 2- shake tables, 3- pedestals, 4- saturated sands, 5- oil tanks, 6- displacement sensors, 7-
Water filling port, 8- acceleration transducers, 9- water level sensors, 10- displacement sensors, 11- sensor for pore water pressure, 12- model casings, 13-
Vertical loading system, 14- horizontal addload systems, 15- hanging rings, 16- organic glasses, 17- data lines.
Specific implementation mode
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
As background technology is introduced, the device that exists in the prior art the experiment of buried tank liquefaction uplifting is less,
The deficiency that the relationship of lower oil tank liquefaction uplifting displacement and trapped fuel amount is still not clear, in order to solve technical problem as above, this Shen
It please propose a kind of experimental rig of buried tank liquefaction uplifting.
In a kind of typical embodiment of the application, as Figure 1-Figure 2, a kind of buried tank liquefaction uplifting is provided
Experimental rig, including model casing 12, oil tank 5, shake table 2, loading system 1 and data collecting system 1, model casing 12 be placed on
The top of shake table 2, shake table 2 connect loading system 1.
The model casing 12 is rectangular, the upper opening of model casing 12, and bottom is equipped with pedestal 3；The bottom of model casing 12 or
Water outlet is arranged in side upper position；Hanging ring 15 is respectively set on four angles of the model casing 12, facilitates lifting；The model
Case 12 is made of organic glass.
The shake table 2 is set to the top of testing stand, the both sides connection horizontal addload system 14 of shake table 2；Shake table 2
Bottom connects vertical loading system 13.
The horizontal addload system 14 and vertical loading system 13 are existing vibration loading system, and details are not described herein again.
Saturated sand 4 is filled in the inside of the model casing 12, and oil tank 5 is placed in saturated sand 4 to simulate buried tank work
Condition；Different depth is respectively equipped with sensor for pore water pressure 11 in saturated sand 4.
The oil tank 5 is rectangular, and inside is cavity, and the top of the oil tank 5 is equipped with water injection pipe, and water injection pipe extends to saturation
The outside of sand 4；Water injection pipe is equipped with valve, and the top of water injection pipe is water filling port 7；It is injected not into oil tank 5 by water filling port 7
The water of same volume is to simulate the operating mode of different trapped fuel amounts.
The oil tank 5 is made of organic glass.
There is water level sensor 9 in the oil tank 5, the trapped fuel amount of oil tank 5 can be measured in real time；The top of oil tank 5 has
The both ends of acceleration transducer 8,5 top of oil tank are respectively equipped with displacement sensor 10.
Pass through the evolution of the super pore pressure of soil layer during the record experiment of sensor for pore water pressure 11, the liquefaction feelings of test beds
Condition；The acceleration responsive of oil tank 5 and the acceleration responsive of soil layer are recorded by acceleration transducer 8；And it is equipped on oil tank 5
Displacement sensor 6 can obtain the floating displacement time-history curves of seismic process buried tank.
The sensor for pore water pressure 11, acceleration transducer 8 and displacement sensor 10 connect data acquisition by data line 17
System 1, each sensor is by collected real-time Data Transmission to data collecting system 1.
The test method of the experimental rig of buried tank liquefaction uplifting, includes the following steps：
Step (1) washing moulding case 12 and oil tank 5, debug, demarcate each sensor and data collecting system 1, get out water
Square to the seismic wave acceleration information with vertical direction；
Model casing 12 is fixed on 2 top of shake table by step (2), and by displacement sensor 10, water level sensor 9 and is accelerated
Degree sensor 8 is fixed on 5 corresponding position of oil tank；
Step (3) prepares liquable saturated sand 4, and sensor for pore water pressure 11 is buried at set depth；To model casing
Add water in 12, allows the water surface to reach setting height, prepare saturated sand soil layer with sand rain method, when reaching setting height, oil tank 5 is put into
In model casing 12, continues to be sprinkled into sand and reach scheduled height；
It is d that the soil thickness covered is filled out on 5 top of oil tank, since the density of oil is more than the density of water, is injected separately into oil tank 5
1/4,1/2,3/4 and full volume oily institute's equivalent volume tap water, simulate different trapped fuel amount operating modes；
Step (4) acquires acceleration transducer 8, sensor for pore water pressure 11, the data line of displacement sensor 10 and data
1 connection of system, and debug for use；
Step (5) stands 24 hours；
Step (6) log-on data acquisition system 1 and loading system 1, loading level seismic wave or seismic wave, or horizontal+
Vertical seismic wave carries out earthquake dynamic test；
Loading system 1 and data collecting system 1 are closed in step (7) off-test, preserve data；
Step (8) is discharged water by the water outlet of model casing 12, clears up testing ground；
Step (9) handles data.
The buried tank liquefaction uplifting model of the application, can realize horizontal earthquake, vertical earthquake or level+vertical earthquake
The floating response test of the lower buried tank of effect, can carry out floating displacement and the relationship of trapped fuel amount is tested, and be in Liquefaction Ground
The design of buried tank provides test basis.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (6)
1. a kind of experimental rig of buried tank liquefaction uplifting, which is characterized in that including visual model casing, model casing it is interior
Saturated sand is filled in portion, and oil tank is arranged in saturated sand；The bottom of model casing is equipped with vertical loading system, and the both sides of model casing are set
There is horizontal addload system；The top of the oil tank is equipped with water injection pipe, and water injection pipe extends to the outside of saturated sand.
2. a kind of experimental rig of buried tank liquefaction uplifting according to claim 1, which is characterized in that in the oil tank
With water level sensor, the trapped fuel amount of oil tank can be measured in real time.
3. a kind of experimental rig of buried tank liquefaction uplifting according to claim 1, which is characterized in that the oil tank is adopted
It is made of organic glass, water injection pipe is equipped with valve.
4. a kind of experimental rig of buried tank liquefaction uplifting according to claim 1, which is characterized in that the model casing
It is positioned over the top of shake table, the bottom of shake table connects vertical loading system, and the both sides of shake table connect horizontal addload system；
The side bottom of model casing is equipped with water outlet.
5. a kind of experimental rig of buried tank liquefaction uplifting according to claim 1, which is characterized in that the saturated sand
Multiple sensor for pore water pressure are set in soil, and acceleration transducer is arranged in the top of oil tank, and the both sides of oil tank are equipped with displacement sensor.
6. a kind of experimental rig of buried tank liquefaction uplifting according to claim 5, which is characterized in that the pore pressure passes
Sensor, acceleration transducer and displacement sensor connect data collecting system by data line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820077292.2U CN207946207U (en) | 2018-01-17 | 2018-01-17 | A kind of experimental rig of buried tank liquefaction uplifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820077292.2U CN207946207U (en) | 2018-01-17 | 2018-01-17 | A kind of experimental rig of buried tank liquefaction uplifting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207946207U true CN207946207U (en) | 2018-10-09 |
Family
ID=63702010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820077292.2U Expired - Fee Related CN207946207U (en) | 2018-01-17 | 2018-01-17 | A kind of experimental rig of buried tank liquefaction uplifting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207946207U (en) |
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2018
- 2018-01-17 CN CN201820077292.2U patent/CN207946207U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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Granted publication date: 20181009 Termination date: 20220117 |