CN106680459A - Experimental device for simulating liquefaction of tailings - Google Patents
Experimental device for simulating liquefaction of tailings Download PDFInfo
- Publication number
- CN106680459A CN106680459A CN201611096073.0A CN201611096073A CN106680459A CN 106680459 A CN106680459 A CN 106680459A CN 201611096073 A CN201611096073 A CN 201611096073A CN 106680459 A CN106680459 A CN 106680459A
- Authority
- CN
- China
- Prior art keywords
- vibration table
- sliding block
- mine tailing
- liquefied
- table surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to an experimental device for simulating the liquefaction of tailings and belongs to the field of mine geotechnical engineering. The experimental device comprises a rubber cushion, a bearing platform, limiting devices, a sliding block, a guide rail, a vibration table tabletop, a mold box, sponge, a rigid fixed shaft coupler, a servo hydraulic machine, a frequency regulator, an amplitude regulator, an acceleration sensor and a pore pressure sensor. The rubber cushion is arranged at the lower part of the bearing platform and is used for reliving vibration; transparent organic glass is arranged on a side wall of the mold box and the sponge is stuck on an inner wall of the organic glass so as to absorb lateral boundary reflection waves; the vibration table tabletop is a steel plate; the steel plate is connected with the servo hydraulic machine through the rigid fixed shaft coupler; the bearing platform is provided with the limiting devices; the guide rail is fixed between the limiting devices; the sliding block is fixed at the bottom of the vibration table tabletop; the sliding block slides horizontally on the guide rail; the acceleration sensor is arranged on the vibration table tabletop and is used for recording input vibration; the acceleration sensor and the pore pressure sensor are further arranged in a burying way into different depths in the mold box. The experimental device provided by the invention can repeatedly reappear a liquefaction process of the tailings and record a super-static pore water pressure and acceleration change principle of the tailings in the different depths in the liquefaction process.
Description
Technical field
The present invention relates to mine Geotechnical Engineering field, more particularly to a kind of simulation liquefied experimental provision of mine tailing is main to use
To simulate the thixotropy process of mine tailing indoors.
Background technology
Mine tailing is grinde ore and chooses the material discharged after useful constituent, and tailing dam is in order to by the orderly storage of mine tailing
Deposit and dam body that heap builds up.China is the country of earthquake more than, and seismic region is widely distributed, earthquake frequently, and tailings particles compared with
Carefully, proportion is larger, and hydrophily is weak, and the loose mine tailing of saturation has very sensitive unstable structure, the intensity under the conditions of dynamic load
Low, cyclic shear stress ratio excursion is small, be more easy to during earthquake occur liquefaction phenomenon, cause tailing dam produce lake Liuhuahu, cause compared with
Big casualties and environmental disaster.The total stress that mine tailing is born includes pore water pressure and effective stress two parts, mine tailing
Liquefied process is exactly that mine tailing Pore Pressure is continuously increased, the ever-reduced process of effective stress.In view of tailing dam liquefies
The seriousness of harm to the liquefaction mechanism and destructive process of mine tailing under effect of vibration, it is necessary to further investigate, and take measures
Reduce the possibility that liquefaction occurs.The general principle of simulated experiment is the rule according to physical phenomenon, is simulated with model experiment
The real work situation of prototype structure, the result further according to model test comes counter some characteristics for pushing away prototype structure, simulated experiment
Every field is widely used to as the important means of learning prototype architectural feature.The present invention is that a simulation mine tailing is liquefied
Experimental provision, the device can reproduce the process of mine tailing thixotropy, record the excess pore water pressure in liquefaction process and shake
The situation of change of dynamic acceleration.
The content of the invention
The present invention is used as a kind of analogue experiment installation, it is therefore intended that obtain the acceleration responsive of tailing dam under geological process,
Super quiet pore pressure accumulation and dissipation and the regularity cognition of soil body settling characteristics, are the thixotropy mechanism for disclosing tailing dam, are carried
Go out anti-liquefaction measure and experimental basis are provided.
The purpose of the present invention can be achieved through the following technical solutions：
One kind simulation liquefied experimental provision of mine tailing, including rubber blanket, cushion cap, stopping means, sliding block, guide rail, vibration table surface,
Model casing, sponge rigidly fixes shaft coupling, servo hydraulic machine, frequency regulator, amplitude modulator, acceleration transducer and hole
Pressure sensor.
The rubber blanket is placed in cushion cap bottom, and cushion cap and rubber blanket are fixed on into mattess by setscrew, with
Reduce impact of the cushion cap vibration to ground.
The side-wall material of the model casing is transparent organic glass, by strength glue sticking between lucite, model casing
Inwall epoxy resin pastes sponge to absorb lateral boundaries back wave, and model casing bottom epoxy resin pastes geotextiles to increase
Plus the frictional force with mine tailing in case.
The vibration table surface is steel plate, and steel plate border exceeds model casing bottom 100mm, and vibration table surface is solid by rigidity
Determine shaft coupling to be coupled with servo hydraulic machine.
The vibration table surface is in same level with shaft coupling, servo hydraulic machine is rigidly fixed, to ensure that input is shaken
Power does not produce moment of flexure.
Totally two, the guide rail, guide rail is fixed with stopping means, and two guide rails are in same level and are parallel to each other.
The stopping means is bloom, totally four, is fixed by bolt between bloom and cushion cap.
The sliding block is bloom, and sliding block is bolted on vibration table surface bottom, and slider bottom is groove shapes, recessed
Groove groove face scribbles lubricant simultaneously and guide rail contact, and sliding block is slided in flat the coming and going of the enterprising water-filling of guide rail.
There is one to be fixed on vibration table surface in the acceleration transducer, be used to record inputted vibration acceleration, remaining
Acceleration transducer is embedded in different depth in model casing.
The sensor for pore water pressure is embedded in model casing on same vertical plane at different depth.
The servo hydraulic machine is bolted on cushion cap table top, and frequency regulator and amplitude modulator pass through wire
With servo hydraulic machine connection, the vibration frequency and amplitude of servo hydraulic machine are controlled respectively.
Brief description of the drawings
Fig. 1 is generalized section of the invention.
Fig. 2 is schematic top plan view of the invention.
In figure：1 rubber blanket, 2 cushion caps, 3 stopping means, 4 sliding blocks, 5 guide rails, 6 vibration table surfaces, 7 model casings, 8 sponges, 9
Shaft coupling is rigidly fixed, 10 servo hydraulic machines, 11 frequency regulators, 12 amplitude modulators, 13 acceleration transducers, 14 pore pressures are passed
Sensor.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples, but should not be construed above-mentioned theme of the invention
Scope is only limitted to following embodiments, without departing from the idea case in the present invention described above, is known according to ordinary skill
Know and customary means, make various replacements and change, all should include within the scope of the present invention.
It is a kind of as shown in Figure 1 and Figure 2 to simulate the liquefied experimental provision of mine tailing, including 1 rubber blanket, 2 cushion caps, 3 stopping means, 4
Sliding block, 5 guide rails, 6 vibration table surfaces, 7 model casings, 8 sponges, 9 rigidly fix shaft coupling, 10 servo hydraulic machines, the regulation of 11 frequencies
Device, 12 amplitude modulators, 13 acceleration transducers and 14 sensor for pore water pressure.
The model casing 7 is the open container in a upper end, and the side wall of model casing 7 is transparent organic glass, lucite
Between bonded by seccotine.Vibration table surface 6 is steel plate, and steel plate border exceeds the bottom 100mm of model casing 7, model casing 7
Punched between vibration table surface 6 and be fixed together with screw rod, sealed with waterproof gasket cement at gap.In model casing 7
Inwall epoxy resin paste the thick sponges 8 of 50mm to absorb lateral boundaries back wave, in the bottom asphalt mixtures modified by epoxy resin of model casing 7
Fat pastes geotextiles to increase the frictional force of mine tailing and the bottom of model casing 7.
The rubber blanket 1 is located at the bottom of cushion cap 2, and cushion cap 2 and rubber blanket 1 are fixed on into concrete ground by setscrew
Face, to reach the purpose of slowing down vibration impact.
The two ends of guide rail 5 are first welded to the same area of stopping means 3, after stopping means 3 is consolidated by bolt
Due on the table top of cushion cap 2, to ensure that two guide rails 5 are coplanar and are parallel to each other.
The sliding block 4 is bloom, and bloom is bolted on the bottom of vibration table surface 6, and the bottom of sliding block 4 is groove type
Shape, smears lubricant and is placed on guide rail 5 in groove groove face, sliding block 4 is slided in flat the coming and going of the enterprising water-filling of guide rail 5.
Be fixed on its base on the table top of cushion cap 2 with bolt when being installed by the servo hydraulic machine 10, and makes to watch
The power output shaft and vibration table surface 6 for taking hydraulic press 10 are in same level, to ensure that effect of vibration in the horizontal direction, is watched
Take and be coupled with rigidly fixing shaft coupling 9 between hydraulic press 10 and vibration table surface 6.The frequency regulator 11 and amplitude modulator
12 are connected by wire with servo hydraulic machine 10, and the vibration frequency and amplitude of servo hydraulic machine 10 are controlled respectively.
There is one to be fixed on vibration table surface 6 in the acceleration transducer 13, be used to record inputted vibration acceleration, its
Remaining acceleration transducer 13 is embedded in different depth in model casing 7.The sensor for pore water pressure 14 is embedded in same in model casing 7 hanging down
The different depth faced directly.
Saturation mine tailing need to be prepared before experiment in model casing 7, a certain amount of pure water is first injected in model casing, then by tail
Ore deposit is equably freely trickled down from the top of model casing 7, if uneven situation occurs in mine tailing top layer, in time with scraper plate to mine tailing layer surface
Carry out smooth, each operational control water surface after the completion of sample preparation, enters again in mine tailing surface above 100mm or so after standing 24 hours
Row vibration.
Claims (8)
1. it is a kind of to simulate the liquefied experimental provision of mine tailing, it is characterised in that including rubber blanket, cushion cap, stopping means, sliding block is led
Rail, vibration table surface, model casing, sponge rigidly fixes shaft coupling, servo hydraulic machine, frequency regulator, amplitude modulator, plus
Velocity sensor and sensor for pore water pressure；Rubber blanket is placed in cushion cap bottom, and model casing side-wall material is transparent organic glass, organic glass
Bonded by seccotine between glass, model chamber interior wall pastes sponge to absorb lateral boundaries back wave, and vibration table surface is by firm
Property closed coupling be coupled with servo hydraulic machine, stopping means is provided with cushion cap, guide rail is fixed between stopping means, vibrate
Platform table top bottom is fixed with sliding block, and sliding block level on guide rail is slided, and an acceleration transducer, mould are fixed on vibration table surface
Also acceleration transducer and sensor for pore water pressure are buried in molding box at different depth.
2. the one kind described in claim 1 simulates the liquefied experimental provision of mine tailing, it is characterised in that the rubber blanket cushion caps bottom
Portion, mattess is fixed on by setscrew by cushion cap and rubber blanket.
3. one kind according to claim 1 simulates the liquefied experimental provision of mine tailing, it is characterised in that model casing side wall
Inner side is pasted with sponge, and model casing bottom is pasted with geotextiles, and alite paste is epoxy resin.
4. a kind of simulation liquefied experimental provision of mine tailing according to claim 1, it is characterised in that the guide rail totally two
Bar, two guide rails are in same level and are parallel to each other.
5. one kind according to claim 1 simulates the liquefied experimental provision of mine tailing, it is characterised in that the vibration table surface
Be steel plate, and vibration table surface exceeds model casing bottom 100mm, vibration table surface with rigidly fix shaft coupling, servo hydraulic machine
In same level.
6. one kind according to claim 1 simulates the liquefied experimental provision of mine tailing, it is characterised in that the sliding block is steel
Block, sliding block is bolted on vibration table surface bottom, and sliding block bottom is groove shapes, groove and guide rail contact.
7. a kind of simulation liquefied experimental provision of mine tailing according to claim 1, it is characterised in that the stopping means is
Bloom, bloom is fixed with cushion cap and track simultaneously.
8. one kind according to claim 1 simulates the liquefied experimental provision of mine tailing, it is characterised in that the acceleration sensing
In device, there is one to be fixed on vibration table surface, remaining acceleration transducer is embedded in different depth in model casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611096073.0A CN106680459A (en) | 2016-12-02 | 2016-12-02 | Experimental device for simulating liquefaction of tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611096073.0A CN106680459A (en) | 2016-12-02 | 2016-12-02 | Experimental device for simulating liquefaction of tailings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106680459A true CN106680459A (en) | 2017-05-17 |
Family
ID=58867136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611096073.0A Pending CN106680459A (en) | 2016-12-02 | 2016-12-02 | Experimental device for simulating liquefaction of tailings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106680459A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107190A (en) * | 2018-01-29 | 2018-06-01 | 铜陵学院 | A kind of full water and soil body local vibration liquefaction test apparatus and method |
| CN111024346A (en) * | 2019-12-16 | 2020-04-17 | 北京科技大学 | A analogue test device for tailing storehouse vibration unstability analysis |
| CN111650120A (en) * | 2020-07-09 | 2020-09-11 | 青岛理工大学 | Sand water bottom sediment dynamic response test system |
| CN115407047A (en) * | 2022-08-08 | 2022-11-29 | 河海大学 | Experimental device and experimental method for indoor simulation of soil liquefaction |
| CN118604312A (en) * | 2024-08-07 | 2024-09-06 | 同济大学浙江学院 | Spatial displacement measuring device and method based on force-displacement conversion |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987960A (en) * | 2006-12-14 | 2007-06-27 | 浙江大学 | Saturated sand vibration liquefication demonstrator |
| CN102024370A (en) * | 2009-09-22 | 2011-04-20 | 同济大学 | Model test system for sandy soil liquefaction and flowing |
| CN203551243U (en) * | 2013-10-11 | 2014-04-16 | 浙江大学 | Double-hydraulic-motor driving type large-displacement earthquake simulation vibrating device |
| 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 |
| CN203688552U (en) * | 2014-02-05 | 2014-07-02 | 程钰翔 | Sand liquefaction model testing device |
-
2016
- 2016-12-02 CN CN201611096073.0A patent/CN106680459A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987960A (en) * | 2006-12-14 | 2007-06-27 | 浙江大学 | Saturated sand vibration liquefication demonstrator |
| CN102024370A (en) * | 2009-09-22 | 2011-04-20 | 同济大学 | Model test system for sandy soil liquefaction and flowing |
| CN203551243U (en) * | 2013-10-11 | 2014-04-16 | 浙江大学 | Double-hydraulic-motor driving type large-displacement earthquake simulation vibrating device |
| CN203688552U (en) * | 2014-02-05 | 2014-07-02 | 程钰翔 | Sand liquefaction model testing device |
| 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 |
Non-Patent Citations (4)
| Title |
|---|
| 杜艳强等: "循环荷载下尾矿粉土的孔隙水压力特性 ", 《东北大学学报(自然科学版)》 * |
| 赵瑞秀: ""基于振动台试验对不同桩体加固的液化土横向动力特性研究"", 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技II辑》 * |
| 金佳旭: ""地震荷载作用下上游式尾矿库动力特性研究"", 《万方数据知识服务平台》 * |
| 马宇艇: ""振动对尾矿坝安全影响的室内试验研究"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107190A (en) * | 2018-01-29 | 2018-06-01 | 铜陵学院 | A kind of full water and soil body local vibration liquefaction test apparatus and method |
| CN111024346A (en) * | 2019-12-16 | 2020-04-17 | 北京科技大学 | A analogue test device for tailing storehouse vibration unstability analysis |
| CN111024346B (en) * | 2019-12-16 | 2021-11-12 | 北京科技大学 | A analogue test device for tailing storehouse vibration unstability analysis |
| CN111650120A (en) * | 2020-07-09 | 2020-09-11 | 青岛理工大学 | Sand water bottom sediment dynamic response test system |
| CN115407047A (en) * | 2022-08-08 | 2022-11-29 | 河海大学 | Experimental device and experimental method for indoor simulation of soil liquefaction |
| CN118604312A (en) * | 2024-08-07 | 2024-09-06 | 同济大学浙江学院 | Spatial displacement measuring device and method based on force-displacement conversion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106680459A (en) | Experimental device for simulating liquefaction of tailings | |
| CN203025185U (en) | Foundation pit model test device | |
| CN202292965U (en) | Hydraulic type vibrating compacting and demolding device | |
| CN103147420B (en) | Test device and method for researching sea wall engineering piping phenomenon | |
| CN205786610U (en) | High ferro pile Reinforced subgrade two-way soil arch coupling effect physical model test device | |
| CN104099953A (en) | Centrifugal model testing device for simulating pressure water head change and stability of foundation pit | |
| CN103969012A (en) | Shake table test real-time loading device for simulating different burial depths of rock tunnel | |
| CN104977151A (en) | Method of designing dam-reservoir water coupled dynamic model test on vibration table | |
| CN104931360B (en) | Large geotechnical staight scissors test device under a kind of dynamic loading | |
| CN206362801U (en) | A kind of sand liquefaction tests shake table | |
| CN107525727A (en) | A kind of Blade fence, which moves in circles, acts on load testing machine and method | |
| CN103162927A (en) | Vibration disturbance simulator used for geotechnical slope and using method thereof | |
| CN110231115A (en) | Simulate the device and method of plastic zone of surrounding rock development and liquid liner structure mechanical response under different supporting power | |
| CN104988956A (en) | Device for testing stress condition of pile group under asymmetric edge loads | |
| CN102735594B (en) | Testing apparatus and method for simulating liquefied particle motion characteristics | |
| CN111636361A (en) | Model test device and method for karez foundation collapse under action of train load | |
| CN204269464U (en) | The automation equipment of indoor test bedding value | |
| CN106018242A (en) | Saturated soft soil centrifugal infiltration device | |
| CN205808884U (en) | A kind of saturated soft soil is centrifuged seepage flow cylinder | |
| CN105784446A (en) | Preparation facilities of cohesive soil layer of simulation static pressure stake pile sinking process | |
| CN115435992B (en) | Earthquake motion simulation device for high and steep rock slope and test method thereof | |
| CN209620126U (en) | A kind of transparent native experimental rig for clump of piles effect of driving pile | |
| CN110907621A (en) | Visual foundation load experimental apparatus | |
| CN108362456A (en) | A kind of small-sized high frequency soil dynamic load experimental provision | |
| CN212379398U (en) | Monitoring and early warning experimental device for simulating soil liquefaction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |