CN203721109U - Special-purpose sandy-soil liquefaction experiment demonstration system - Google Patents
Special-purpose sandy-soil liquefaction experiment demonstration system Download PDFInfo
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- CN203721109U CN203721109U CN201420086799.6U CN201420086799U CN203721109U CN 203721109 U CN203721109 U CN 203721109U CN 201420086799 U CN201420086799 U CN 201420086799U CN 203721109 U CN203721109 U CN 203721109U
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- sandy
- sand
- liquefaction
- soil
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- 239000002689 soil Substances 0.000 title claims abstract description 20
- 238000002474 experimental method Methods 0.000 title abstract description 4
- 239000012780 transparent material Substances 0.000 claims abstract description 3
- 239000004576 sand Substances 0.000 claims description 45
- 239000000725 suspension Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a special-purpose sandy-soil liquefaction experiment demonstration system which includes a base vibration platform and sandy-soil chambers. The sandy-soil chambers are suspended over the base vibration platform through a hanging bracket. The lower parts of the sandy-soil chambers are provided with hoppers. The hanging bracket is fixed on the base vibration platform. The side walls of the sandy-soil chambers are made of a transparent material. Soil pressure sensors are arranged in the sandy-soil chambers. The base vibration platform is provided with a vibration motor. The vibration motor is provided with a variable-frequency governor. The sandy-soil chambers are provided with top-bottom vibration amplitude adjusting and locking devices and horizontal vibration amplitude adjusting and locking devices. The special-purpose sandy-soil liquefaction experiment demonstration system is capable of truly reflecting a sandy-soil liquefaction phenomenon of the nature world, low in man-made influence factor, stable in data and simple to operate.
Description
Technical field
The utility model relates to the experimental provision of sand liquefaction after a kind of earthquake, relates in particular to a kind of tailored version liquefaction of sand experimental demonstration system.
Background technology
At present, on the earth, still earthquake takes place frequently, and take Beijing as example, and Beijing area is located in the east of North China Plate, near Tan (a state in the Zhou Dynasty) hut major rupture, is subject to the impact of Pacific Plate subduction, is the active region of earthquake.Because Pekinese's building major part is built on ancient Yongdinghe River outfall fan, there are the material conditions of earthquake stonebrash liquefaction.After earthquake disaster occurs, be setting of ground and the house crack causing after sand liquefaction and collapse for the key element of the destructive power maximum of buildings.Urban construction has been accelerated in current capital and to surrounding area development, groups of building are to development in pluralism, and in some areas, skyscraper is built more and more, builds higher and higher, has increased the weight of the carrying burden in soil.Under the new situation, from environmental protection and the angle of preventing and reducing natural disasters, in planning and construction of the city, be necessary the distribution in Study of Seismic sand liquefaction district, for urban construction security provides reliable scientific basis.Earthquake is the power actuated performance of a kind of earth, and it causes instantaneous catastrophic event.When modern earthquake occurs, except showing as house collapse, destroy road, cause outside a series of disasters such as fire, also in sediment, cause modern sand liquefaction (being water-jet), ground cracking (ground fissure) etc.
Have the present age three class experts to be concerned about Seismic Problems:
1) seismologist's notice is concentrated dry earthquake prediction (long term, recent and imminent earthquake);
2) seismogeology scholar concentrates on notice in the structural setting of earthquake generation, for earthquake prediction provides detailed as far as possible geologic background data;
3) building scholar only notes the anti-seismic performance of constructure inner structure.
Only have ecoenvironmental geology man more to pay close attention to sandy soil under buildings mobile because liquefaction produces, cause the serious problems of building collapsing.Due in certain distance around earthquake epicenter, sediment very easily produces earthquake liquefaction, modern urban architecture facility is destroyed greatly, and liquefaction of sand problem be directly connected to people's life and property safety the same as earthquake intensity, should cause more and more people's concern.
The impact of liquefaction of sand on Beijing Urban Construction: ancient city of Beijing is built on the wetland of the numerous and ancient Yongdinghe River outfall fan in lake, the few tall and big house of buildings, and be mostly yoke structure complete be main Chinese courtyard house, shock resistance is extremely strong.But along with the development of after liberation urban construction, there is huge variation in ancient Beijing.Building is many, story height, the static pressure on ground has been increased to thousands of times.Because Beijing is located in meizoseismal area, once possess above-mentioned earthquake liquefaction of sand condition, will there is uneven subsidence in ground, and its ground skyscraper may even collapse in run-off the straight.
In existing art, be all that artifical influence factor is large, data stability is poor, can not play research effect by a part of phenomenon of artificial method demonstration earthquake stonebrash liquefaction.
Utility model content
The purpose of this utility model is to provide a kind of tailored version liquefaction of sand experimental demonstration system that can demonstrate earthquake stonebrash liquefaction.
The purpose of this utility model is achieved through the following technical solutions:
Tailored version liquefaction of sand experimental demonstration system of the present utility model, comprise base shaking table, sand chamber, described sand chamber is by hanger suspending above described base shaking table, and the bottom of described sand chamber is provided with funnel, and described suspension bracket is fixed on described base shaking table.
The technical scheme being provided by above-mentioned the utility model can be found out, the tailored version liquefaction of sand experimental demonstration system that the utility model embodiment provides, owing to comprising base shaking table, sand chamber, sand chamber by hanger suspending above base shaking table, the bottom of sand chamber is provided with funnel, and suspension bracket is fixed on base shaking table.Can truly reflect nature liquefaction of sand phenomenon, artifical influence factor is little, data stabilization.
Brief description of the drawings
The Facad structure schematic diagram of the tailored version liquefaction of sand experimental demonstration system that Fig. 1 provides for the utility model embodiment;
The side structure schematic diagram of the tailored version liquefaction of sand experimental demonstration system that Fig. 2 provides for the utility model embodiment;
The planar structure schematic diagram of the tailored version liquefaction of sand experimental demonstration system that Fig. 3 provides for the utility model embodiment.
In figure: 1, base shaking table, 2, funnel, 3, sand chamber, 4, suspension bracket.
Embodiment
To be described in further detail the utility model embodiment below.
Tailored version liquefaction of sand experimental demonstration system of the present utility model, its preferably embodiment be:
Comprise base shaking table, sand chamber, described sand chamber is by hanger suspending above described base shaking table, and the bottom of described sand chamber is provided with funnel, and described suspension bracket is fixed on described base shaking table.
The sidewall of described sand chamber is transparent material.
The indoor soil pressure case that is provided with of described sand.
Described base shaking table is provided with vibrating motor, and described vibrating motor is provided with variable-frequence governor.
Described sand chamber is provided with upper and lower amplitude adjusting and locking device and horizontal vibration amplitude and regulates and locking device.
When earthquake, because moment is subject to suddenly the strong effect of brisance hugely, interstitial water in sandy soil layer has little time to discharge, space is pressed suddenly and is raise, cause sandy soil layer to present suddenly liquid physical form, cause foundation bearing capacity greatly to decline, above ground structure is sunk in the drift sand forming, produce greatly and destroy.It is generally acknowledged that water-jet phenomenon when earthquake is to be also embedded in underground sandy soil layer to produce the result of liquefaction.Tailored version liquefaction of sand experimental demonstration system of the present utility model, can truly reflect nature liquefaction of sand phenomenon, can regulate vibration frequency by frequency control, produces a desired effect, and adopts soil pressure case to observe soil pressure front and back variable condition.Equipment integrated design makes construction more easily convenient.The design of plant capacity minimization significantly reduces use cost.Can regulate and locking level and upper and lower amplitude, make laboratory equipment significantly reduce noise.
In concrete application, electric supply installation can be the above 380V power electric of 10kW.
The utility model can not only clearly be shown the Nature Disasters, can also carry out various experiments, thereby understands the reason that liquefaction of sand produces, and can research and solve method.Can solve Traditional Man demonstration, directly show disaster in big-and-middle college teaching research and training organization, simple to operate, easy to utilize.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (5)
1. a tailored version liquefaction of sand experimental demonstration system, it is characterized in that, comprise base shaking table, sand chamber, described sand chamber by hanger suspending above described base shaking table, the bottom of described sand chamber is provided with funnel, and described suspension bracket is fixed on described base shaking table.
2. tailored version liquefaction of sand experimental demonstration system according to claim 1, is characterized in that, the sidewall of described sand chamber is transparent material.
3. tailored version liquefaction of sand experimental demonstration system according to claim 2, is characterized in that, the indoor soil pressure case that is provided with of described sand.
4. according to the tailored version liquefaction of sand experimental demonstration system described in claim 1,2 or 3, it is characterized in that, described base shaking table is provided with vibrating motor, and described vibrating motor is provided with variable-frequence governor.
5. tailored version liquefaction of sand experimental demonstration system according to claim 4, is characterized in that, described sand chamber is provided with upper and lower amplitude adjusting and locking device and horizontal vibration amplitude and regulates and locking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086799.6U CN203721109U (en) | 2014-02-27 | 2014-02-27 | Special-purpose sandy-soil liquefaction experiment demonstration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086799.6U CN203721109U (en) | 2014-02-27 | 2014-02-27 | Special-purpose sandy-soil liquefaction experiment demonstration system |
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| Publication Number | Publication Date |
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| CN203721109U true CN203721109U (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420086799.6U Expired - Lifetime CN203721109U (en) | 2014-02-27 | 2014-02-27 | Special-purpose sandy-soil liquefaction experiment demonstration system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778842A (en) * | 2014-02-27 | 2014-05-07 | 北京铁五院工程机械有限公司 | Special demonstration system of experiment of liquefaction of sand |
| CN110534005A (en) * | 2019-09-05 | 2019-12-03 | 山东建筑大学 | A kind of simulation demonstrating apparatus of soil liquefaction disaster |
-
2014
- 2014-02-27 CN CN201420086799.6U patent/CN203721109U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778842A (en) * | 2014-02-27 | 2014-05-07 | 北京铁五院工程机械有限公司 | Special demonstration system of experiment of liquefaction of sand |
| CN103778842B (en) * | 2014-02-27 | 2017-01-11 | 北京铁五院工程机械有限公司 | Special demonstration system of experiment of liquefaction of sand |
| CN110534005A (en) * | 2019-09-05 | 2019-12-03 | 山东建筑大学 | A kind of simulation demonstrating apparatus of soil liquefaction disaster |
| CN110534005B (en) * | 2019-09-05 | 2021-09-14 | 山东建筑大学 | Simulation demonstration device for soil liquefaction disasters |
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