CN109459292A - A kind of the seabed Soft Soil Layer preparation facilities and method of large scale physical experiments - Google Patents
A kind of the seabed Soft Soil Layer preparation facilities and method of large scale physical experiments Download PDFInfo
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- CN109459292A CN109459292A CN201910004070.7A CN201910004070A CN109459292A CN 109459292 A CN109459292 A CN 109459292A CN 201910004070 A CN201910004070 A CN 201910004070A CN 109459292 A CN109459292 A CN 109459292A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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Abstract
A kind of the seabed Soft Soil Layer preparation facilities and method of large scale physical experiments belong to geotechnical engineering experimental technique field, including consolidation sample-preparing system, Monitoring and control system, counter-force loading system.Consolidation sample-preparing system pressurizes through top under certain head condition, soil sample is consolidated under two-sided drainage situation, and tests out the density of soil sample.Monitoring and control system can monitor the state change of soil sample in real time, obtain the various physical and mechanical parameters of soil sample, comprising: water content, soil pressure, pore water pressure, void ratio etc. by the way that the sensor of soil sample consolidation zone Yu top loading zone is arranged in.Counter-force loading system can apply steady and uniform consolidation pressure to soil sample consolidation zone, and can reduce or even eliminate the influence of bias.Three digest journals cooperate, and realize in real time mutually feedback, when reaching required sample preparation standard, sample preparation terminates.The device strong applicability；Connection is easy, easy to operate；Sample preparation good integrity, uniformity；It is equally applicable to seabed weak soil and the ultra-soft preparation of soil sample.
Description
Technical field
The invention belongs to geotechnical engineering experimental technique field, be related in geotechnical model test and single test saturated soft soil with
The preparation of ultra-soft soil sample, especially for the large scale physical experiments seabed ultra-soft soil sample for needing to carry out different scales
Preparation.
Background technique
Indoor geotechnical engineering test includes that conventional geotechnological single test, Chang Chongli physical experiments and hypergravity are centrifuged
Physical experiments etc..The expansion of these geotechnical engineerings test is this material with complex physics of the understanding soil body and mechanical characteristic
The basis of premise and the verifying of all kinds of geotechnical engineering test equipments, calibration and detection even more solves all kinds of complicated ground in reality
The key of engineering problem.The operation object of geotechnical engineering test is exactly soil sample to be measured.Therefore, the effective of geotechnical engineering test opens
Exhibition be unable to do without the preparation of geotechnical sample.Accuracy, uniformity, batch repeatability of soil sample etc. are to guarantee geotechnical engineering test
Successful precondition.However, in actual operation, which is often ignored by researchers, cause to occur all kinds of different
Normal test result.In addition, sample preparation is even more difficulty for being difficult to for molding weak soil, ultra-soft soil or even mudflow.
In order to solve increasingly complex geotechnical engineering problems, it is often necessary to carry out systematically qualitative and quantitative and probes into, this
Inevitably need to carry out a large amount of repeatability test, comprising: different set operating condition, different tests environment, different confining pressures
Condition etc..For flowing the rating test of penetrometer entirely, Quan Liudong penetrometer needs to be measured with different penetrating speed insertions
(reach different shear rates) in soil sample, and require the point column pitch of injection twice from being greater than certain value, it is previous to eliminate
Influence of the secondary injection to a rear injection, will more carry out the correlation tests such as different instruments such as cross plate shearing instrument, static penetrometer
(these test is also required to be greater than certain distance) are mutually authenticated, this requires prepare extensive (space requirement for meeting test)
And uniformity (physical characteristic and mechanical characteristic) consistent soil sample.In addition, being particularly in depth for seabed weak soil and ultra-soft soil
The soil sample in sea area, their formation environment are difficult to simulate, and prepare this low-intensity, high-moisture, high sensitivity, strong structure at present
The deep-sea weak soil of property is even more extremely difficult.
Summary of the invention
In order to solve the deficiency of saturated soft soil and the preparation of ultra-soft soil sample in current geotechnical engineering test, a kind of energy system is provided
Standby scale is big, uniformity is good, the sample preparation device of high reliablity seabed weak soil physical experiments, there is preparation to meet different
The function of test requirements document, and elaborate its application method, to meet all kinds of geotechnical engineerings tests include geotechnological single test,
The needs of Chang Chongli physical experiments and hypergravity centrifugal model test.
In order to achieve the above object, the technical solution of the present invention is as follows:
A kind of seabed Soft Soil Layer preparation facilities of large scale physical experiments, including consolidation sample-preparing system, monitoring and control
System processed, counter-force loading system.Sample-preparing system is consolidated under certain head condition, is pressurizeed through top, under two-sided drainage situation
Soil sample is consolidated, and tests out the density of soil sample.Monitoring and control system can be loaded by setting in soil sample consolidation zone and top
The sensor in area monitors the state change of soil sample in real time, obtains the various physical and mechanical parameters of soil sample, comprising: water content, soil pressure
Power, pore water pressure, void ratio etc..Counter-force loading system can apply steady and uniform consolidation pressure to soil sample consolidation zone, and
The influence of bias can be reduced or even eliminated.Three digest journals cooperate, and realize in real time mutually feedback, when reaching required sample preparation standard,
Sample preparation terminates.
The consolidation sample-preparing system includes adjustable support column 1, the double-deck lucite spacer 2 with a scale, band rolling
The self-balancing drain bar 3 of wheel, soil sample consolidation zone 4, fixed drain bar 5, overlying water layer 6, it is scalable with the discharge outlet 7 moved, lead
Flowing plate 8, diversion pipe 9, catch basin 10, water tank 11.Four adjustable support columns 1 are vertical at the quadrangle of device,
Have the function of leveling and stabilising arrangement；The double-deck lucite spacer 2 with a scale of described four is vertical set on adjustable support
Between column 1, the double-deck lucite spacer 2 forms the rectangular parallelepiped structure of upper and lower opening with adjustable support column 1；One of them is double
The inner glass of layer lucite spacer 2 is spliced by multiple pieces of glass plate, and the inside poly (methyl methacrylate) plate itself is by adjusting it
There is the discharge outlet 7 of different size and shapes in the combination for splicing glass plate, realizes the scalable function with movement of discharge outlet 7；And
It is equipped with deflector 8 above internal, the fixed drain bar 5 of the side bilayer lucite spacer 2, deflector 8 passes through diversion pipe 9 and water storage
Case 11 is connected, wherein diversion pipe 9 passes through the through-hole that 2 bottom of the double-deck lucite spacer opens up, and is connected to deflector 8 and water tank
11.The self-balancing drain bar 3 with idler wheel be it is rectangular, set on the inner space that four double-deck lucite spacers 2 surround
It is interior, it is made of from top to bottom drain bar with holes, geotextiles and filter paper, wherein filter paper is certainly flat alternatively at permeable stone and filter paper
Weighing apparatus drain bar 3 is surrounded by idler wheel, can effectively reduce or even ignore and make with the friction of the double-deck lucite spacer 2 with a scale
With.The soil sample consolidation zone 4 is the region for placing soil sample or high-moisture mudflow, is located at 3 lower section of self-balancing drain bar, fixed
5 top of drain bar.The fixation drain bar 5 is set to 2 bottom of the double-deck lucite spacer, from top to bottom by filter paper, geotextiles
It is formed with drain bar with holes, wherein drain bar with holes can be replaced filter paper and permeable stone.The overlying water layer 6 is covered on soil
On sample consolidation zone 4, so that there is certain head above soil sample, it is in a saturated state always in guarantee soil sample consolidation process,
And the water being discharged in soil sample consolidation process by the self-balancing drain bar 3 of upper belt idler wheel is collected, extra water in overlying water layer 6
It can enter in water tank 11 through the scalable 7 automatic stream deflector 8 of discharge outlet with movement, then through diversion pipe 9.Described catchments
Slot 10 is set to below fixed drain bar 5, the water being discharged in collection soil sample consolidation process by fixed drain bar 5, in catch basin 10
Water enters in water tank 11 through diversion pipe 9.
The Monitoring and control system includes mechanical characteristic sensor 12, physical property sensor 13, displacement and pressure
Sensor 14, data line 15, microcomputer 16.The mechanical characteristic sensor 12 is buried with physical property sensor 13
In soil sample consolidation zone 4, the type, quantity and position of sensor can be set according to the actual situation, and through data line 15
It is transferred in microcomputer 16, monitors the state of soil sample in soil sample consolidation zone 4 in real time, the adjustment of counter-force loading system is and guided to add
The process of load realizes mutually feedback, guarantees that soil sample reaches sets requirement.The displacement and pressure sensor 14 is set to fixed drain bar
It on 5, is transferred in microcomputer 16 through data line 15, monitors the compression of the load being applied in soil sample and soil sample in real time
Situation.The mechanical characteristic sensor includes sensor for pore water pressure, soil pressure sensor etc., the physical property sensor:
Temperature sensor, water content sensor, resistivity sensor etc..
The counter-force loading system is set to above soil sample, including reaction frame frame 17, hydraulic system 18, scalable power transmission
Bar 19, ring 20 of measuring one's own ability, force transmission shaft 21, force transmitting board 22, the steady power frame 23 of balance.The setting of reaction frame frame 17 is made in consolidation
Sample system peripherals, including horizontal and vertical frame structure, horizontal frame are combined with hydraulic system 18, form counter-force source,
In, the working condition of hydraulic system 18 is controlled by displacement and pressure sensor 14, to maintain the load of setting；Described can
Flexible 19 both ends of transmission rod are connect with hydraulic system 18, ring 20 of measuring one's own ability respectively, and ring 20 of measuring one's own ability is set to 21 top of force transmission shaft, power transmission
Cushion block 21 is located on force transmitting board 22；22 edge of force transmitting board, which is equipped with, balances steady power frame 23, the steady power frame 23 of the balance by
Quadrangle cushion block is formed with the rigid thin rod for connecting quadrangle cushion block, and purpose decreases or even eliminates bias, to reach power uniform and stable
Be applied on soil sample.In the system, counter-force source is applied at ring 20 of measuring one's own ability by scalable transmission rod 19, through displacement and pressure
After force snesor 14 records, power is distributed to force transmission shaft 21, power is distributed on the steady power frame 23 of balance by force transmission shaft 21 again, most
After be applied to soil sample.
A kind of seabed Soft Soil Layer preparation method of large scale physical experiments, using above-mentioned apparatus the following steps are included:
Firstly, fixed drain bar 5 is cleaned out, it is scalable to be placed on designated position with mobile discharge outlet 7, and check
Deflector 8, diversion pipe 9, catch basin 10 and water tank 11；By relevant mechanical characteristic sensor 12, physical property sensor 13,
Displacement is laid in specified region with pressure sensor 14, then is connected through data line 15 with microcomputer 16.
Secondly, by air free water is filled in soil sample consolidation zone 4, then again by the saturation soil sample through being stirred under vacuum kettle mixing,
(if preparation multilayer/layering soil sample can in batches slowly slide into) is slowly slid into soil sample consolidation zone 4 under air free water environment；Cover band rolling
The self-balancing drain bar 3 of wheel, then by reaction frame frame 17, hydraulic system 18, scalable transmission rod 19, measure one's own ability ring 20, washer
Block 21, force transmitting board 22 are successively put well with steady power frame 23 is balanced；Displacement is transferred to pressure sensor 14 through data line 15
Microcomputer 16, starting microcomputer 16 and hydraulic system 18, start the preparation of soil sample.
Finally, accurately monitoring the minor change in soil sample consolidation zone 4 in soil sample consolidation process by the device, and then pass through
Data line 15 is fed back into hydraulic system 18, realizes in real time mutually feedback, changes displacement and load that hydraulic system 18 applies, when
When reaching set sample preparation standard, relevant apparatus is powered off and removed, terminates sample preparation.The consolidation sample-preparing system can be according to band
The double-deck lucite spacer 2 of scale calculates the volume of soil sample consolidation zone 4, according to the quality for sliding into earth material in soil sample consolidation zone 4
With the air free water quality sum stored in original soil sample consolidation zone 4, then the quality that water tank 11 collects waste water is subtracted, it is solid to obtain soil sample
The net quality of soil sample in interface 4, and then obtain the density of soil sample in soil sample consolidation zone 4.It is special according to the mechanics in soil sample consolidation zone 4
Property sensor 12 and physical property sensor 13 be connected to the data of microcomputer 16 and obtained in conjunction with calculated density of soil sample
To parameters such as the void ratio of soil sample, water content, density, resistivity, pore pressure, earth pressures.
The invention has the advantages that: the unit scale is huge, can prepare soil sample needed for large-scale experiment, strong applicability；
Connection is relatively easy to, easy to operate；Sample preparation good integrity, uniformity, saturation degree are high；For seabed weak soil and ultra-soft soil sample system
It is standby equally applicable, and analog has the preparation of soil sample of certain head；It can also Real-time Feedback sample internal physical and mechanical characteristic
Situation of change, with loading system realize mutually feedback control, sample preparation effect is more preferably.
Detailed description of the invention
Fig. 1 is the overall schematic of device；
Fig. 2 is the consolidation sample-preparing system schematic diagram of device；
Fig. 3 is the Monitoring and control system schematic diagram of device；
Fig. 4 is the counter-force loading system schematic diagram of device；
In figure: 1 adjustable support column；The 2 double-deck lucite spacers with a scale；The 3 self-balancing drain bars with idler wheel；
4 soil sample consolidation zones；5 fixed drain bars；6 overlying water layers；7 discharge outlet；8 deflectors；9 diversion pipes；10 catch basins；11 water tanks；
12 mechanical characteristic sensors；13 physical property sensors；14 displacements and pressure sensor；15 data lines；16 miniature calculating
Machine；17 reaction frame frames；18 hydraulic systems；19 scalable transmission rods；20 measure one's own ability ring；21 force transmission shafts；22 force transmitting boards；23 balances
Steady power frame.
Specific embodiment
A specific embodiment of the invention is described in detail below in conjunction with technical solution (and attached drawing).
A kind of seabed Soft Soil Layer preparation facilities includes consolidation sample-preparing system, Monitoring and control system, counter-force loading system.
The consolidation sample-preparing system: four adjustable support columns 1 are vertical at the quadrangle of device, and four with a scale
The double-deck lucite spacer 2 is set between adjustable support column 1；The inner glass of one of bilayer lucite spacer 2
It is spliced by multiple pieces of glass plate, which splices the combination of glass plate by adjusting it, and different sizes are arranged
With the discharge outlet 7 of shape, realize that discharge outlet 7 is scalable and locomotive function；And the side bilayer lucite spacer 2 is internal, fixed
Deflector 8 is equipped with above drain bar 5, deflector 8 is connected by diversion pipe 9 with water tank 11.Self-balancing drain bar 3 with idler wheel
In the inner space that four double-deck lucite spacers 2 surround.Soil sample consolidation zone 4 is to place soil sample or high-moisture mudflow
Region, be located at the lower section of self-balancing drain bar 3, fixed 5 top of drain bar.Fixed drain bar 5 is set to the double-deck lucite spacer 2
Bottom.Overlying water layer 6, which is covered on soil sample consolidation zone 4, forms the sample preparation environment with certain head, extra in overlying water layer 6
Water through 7 automatic stream deflector 8 of discharge outlet, then through diversion pipe 9 enter water tank 11 in.Catch basin 10 is set to fixed drain bar
5 lower sections, collect the water that the discharge of drain bar 5 is fixed in soil sample consolidation process, enter in water tank 11 through another diversion pipe 9.
The Monitoring and control system includes microcomputer 16, and passes through the mechanics that data line 15 is connect with it
Property sensor 12, physical property sensor 13, displacement and pressure sensor 14.The mechanical characteristic sensor 12 and physics
Property sensor 13 is embedded in soil sample consolidation zone 4.
The counter-force loading system is set to above soil sample: the setting of reaction frame frame 17 is peripheral in consolidation sample-preparing system, with
Hydraulic system 18 combines, and forms counter-force source；Scalable 19 both ends of transmission rod are connect with hydraulic system 18, ring 20 of measuring one's own ability respectively,
Ring 20 of measuring one's own ability is set to 21 top of force transmission shaft, and force transmission shaft 21 is located on force transmitting board 22；22 edge of force transmitting board, which is equipped with, balances steady power
Frame 23.
Consolidating adjustable support column 1 in sample-preparing system can be according to practical feelings with the double-deck lucite spacer 2 with a scale
Condition adjusts size and specification, and adjustable support column 1 suggests selection steel.One in the double-deck lucite spacer 2 with a scale
The scalable discharge outlet 7 with movement is placed on the inside of a partition, scalable and mobile discharge outlet 7 can be in the double-deck lucite spacer
It arbitrarily moves and splices in 2.The double-deck lucite spacer 2 with a scale can calculate soil sample with the volume of scale according to area
Volume.The saturation soil sample gross mass of the air free water and vacuum stirring kettle mixing pre-installed in soil sample consolidation zone 4 subtracts in water tank 11
The quality of water, the quality for the soil sample that can be prepared.The close of soil sample can be obtained in the ratio between quality and the volume of soil sample of soil sample
Degree.Relevant mechanical characteristic sensor 12, physical property sensor 13 and displacement and pressure sensor in Monitoring and control system
14 type, quantity and position, can flexible arrangement according to actual needs, to obtain the various physics of soil sample in soil sample consolidation zone 4
The dynamic changes of mechanics parameter provide true and reliable data supporting to terminate sample making course.In counter-force loading system
Reaction frame frame 17, hydraulic system 18, scalable transmission rod 19, ring 20 of measuring one's own ability, force transmission shaft 21, force transmitting board 22 and the steady power of balance
Frame 23 selects suitable economic specification and size according to the needs of practical sample preparation situation, and material suggestion is that compressibility is smaller, resistance to
The good steel of corrosivity.Microcomputer 16 passes mechanical characteristic sensor 12, physical property sensor 13 and displacement with pressure
The data that sensor 14 transmits are handled, and to control the working condition of hydraulic system 18, realize mutual infeed mechanism.
When using the device, device each section is cleaned up first, combination is placed intact；Again by relevant mechanical characteristic
Sensor 12, physical property sensor 13 and displacement are laid in specified region through data line with pressure sensor 14, then pass through
Data line 15 is connected with microcomputer 16；It (can also be the salting liquid without gas that air free water will be filled in soil sample consolidation zone 4
Deng other liquid), the saturation soil sample through being stirred under vacuum kettle mixing is slowly then slid into soil sample consolidation under air free water environment again
It (can slowly be slid into batches to preparation multilayer/layering soil sample) in area 4；Cover the self-balancing drain bar 3 with idler wheel, then by counter-force
Frame frame 17, hydraulic system 18, scalable transmission rod 19, ring 20 of measuring one's own ability, force transmission shaft 21, force transmitting board 22 and the steady power frame 23 of balance
It successively puts well, starting microcomputer 16 and hydraulic system 18 start the preparation of soil sample, in the process according to microcomputer 16
As a result power and displacement that hydraulic system 18 applies constantly are adjusted；Finally, the result satisfaction when 16 Real-time Feedback of microcomputer is wanted
When asking, terminate sample preparation test, power-off arranges, and removes relevant apparatus.
Embodiment described above only expresses embodiments of the present invention, and but it cannot be understood as to the invention patent
Range limitation, it is noted that for those skilled in the art, without departing from the inventive concept of the premise, also
Several modifications and improvements can be made, these are all belonged to the scope of protection of the present invention.
Claims (7)
1. a kind of seabed Soft Soil Layer preparation facilities of large scale physical experiments, which is characterized in that the seabed Soft Soil Layer
Preparation facilities includes consolidation sample-preparing system, Monitoring and control system, counter-force loading system；Three digest journals cooperate, and realize real
When mutually present: consolidation sample-preparing system under certain head condition, pressurize through top, soil sample consolidated under two-sided drainage situation, and survey
Try out the density of soil sample；Monitoring and control system passes through the sensor that soil sample consolidation zone Yu top loading zone is arranged in, and supervises in real time
The state change for controlling soil sample, obtains the various physical and mechanical parameters of soil sample；Counter-force loading system applies soil sample consolidation zone steady
And uniform consolidation pressure, reduce or even eliminate bias influence；
The consolidation sample-preparing system includes adjustable support column (1), the double-deck lucite spacer (2) with a scale, band rolling
The self-balancing drain bar (3) of wheel, soil sample consolidation zone (4), fixed drain bar (5), overlying water layer (6), discharge outlet (7), deflector
(8), diversion pipe (9), water tank (11)；The adjustable support column (1) is vertical at the quadrangle of device, and four with a scale
The double-deck lucite spacer (2) be set to adjustable support column (1) between；One of bilayer lucite spacer (2)
Inner glass is spliced by multiple pieces of glass plate, which splices the combination of glass plate, setting by adjusting it
The discharge outlet (7) of different size and shapes realizes that discharge outlet (7) scalable and locomotive function；And the side bilayer organic glass every
Plate (2) is internal, fixed drain bar (5) top is equipped with deflector (8), and deflector (8) passes through diversion pipe (9) and water tank (11) phase
Even；The self-balancing drain bar (3) with idler wheel is set in the inner space that four double-deck lucite spacers (2) surround；
The soil sample consolidation zone (4) is the region for placing soil sample or high-moisture mudflow, is located at below self-balancing drain bar (3), Gu
Determine above drain bar (5)；The fixation drain bar (5) is set to double-deck lucite spacer (2) bottom；The overlying water layer
(6) it is covered on the sample preparation environment for being formed on soil sample consolidation zone (4) and there is certain head, guarantees to locate always in soil sample consolidation process
In water extra in saturation state, overlying water layer (6) through discharge outlet (7) automatic stream deflector (8), then through diversion pipe (9) into
Enter in water tank (11)；
The Monitoring and control system includes microcomputer (16), and passes through the mechanics that data line (15) are connect with it
Property sensor (12), is displaced and pressure sensor (14) physical property sensor (13)；The mechanical characteristic sensor
(12) it is embedded in physical property sensor (13) in soil sample consolidation zone (4), monitors the shape of soil sample consolidation zone (4) interior soil sample in real time
State and guides counter-force loading system to adjust loading procedure；The displacement and pressure sensor (14) real time monitoring are applied to soil
Load and soil sample on sample compress situation；
The counter-force loading system is set to above soil sample, including reaction frame frame (17), hydraulic system (18), scalable power transmission
Bar (19), ring of measuring one's own ability (20), force transmission shaft (21), force transmitting board (22), the steady power frame (23) of balance；The reaction frame frame (17)
Setting consolidation sample-preparing system periphery, with hydraulic system (18) combine, form counter-force source, hydraulic system (18) by displacement with
Pressure sensor (14) control, maintains the load of setting；Described scalable transmission rod (19) both ends respectively with hydraulic system
(18), it measures one's own ability ring (20) connection, ring of measuring one's own ability (20) is set to above force transmission shaft (21), and force transmission shaft (21) is located at force transmitting board (22)
On；Force transmitting board (22) edge, which is equipped with, balances steady power frame (23)；In the system, scalable transmission rod (19) is by counter-force source
It is applied at ring of measuring one's own ability (20), is displaced with after pressure sensor (14) record, power is distributed to force transmission shaft (21), washer
Power is distributed on the steady power frame (23) of balance by block (21) again, is finally applied to soil sample.
2. a kind of seabed Soft Soil Layer preparation facilities of large scale physical experiments according to claim 1, feature exist
In, the consolidation sample-preparing system further includes catch basin (10), and the catch basin (10) is set to below fixed drain bar (5),
The water for fixing drain bar (5) discharge in soil sample consolidation process is collected, is entered in water tank (11) through another diversion pipe (9).
3. a kind of seabed Soft Soil Layer preparation facilities of large scale physical experiments according to claim 1, feature exist
In the self-balancing drain bar (3) is made of drain bar with holes, geotextiles and filter paper from top to bottom, wherein filter paper is replaceable
At permeable stone and filter paper；Self-balancing drain bar (3) is surrounded by idler wheel, for reduce its with the double-deck organic glass with a scale every
The rubbing action of plate (2).
4. a kind of seabed Soft Soil Layer preparation facilities of large scale physical experiments according to claim 1, feature exist
In the fixation drain bar (5) is made of filter paper, geotextiles and drain bar with holes from top to bottom, wherein drain bar with holes can
Replace with filter paper and permeable stone.
5. a kind of seabed Soft Soil Layer preparation facilities of large scale physical experiments according to claim 1, feature exist
In the mechanical characteristic sensor (12) includes sensor for pore water pressure, soil pressure sensor, the physical property sensor
It (13) include temperature sensor, water content sensor, resistivity sensor.
6. a kind of seabed Soft Soil Layer preparation facilities of large scale physical experiments according to claim 1, feature exist
In the steady power frame (23) of the balance is made of quadrangle cushion block with the rigid thin rod for connecting quadrangle cushion block, for reducing or even disappearing
Except bias, by being applied on soil sample for power uniform and stable.
7. a kind of seabed Soft Soil Layer preparation method of large scale physical experiments, it is characterised in that following steps:
Firstly, fixed drain bar (5) are cleaned out, it is scalable to be placed on designated position with mobile discharge outlet (7), and check
Deflector (8), diversion pipe (9), catch basin (10) and water tank (11)；Relevant mechanical characteristic sensor (12), physics is special
Property sensor (13) is laid in specified region, then is connected through data line (15) with microcomputer (16)；
Secondly, by air free water is filled in soil sample consolidation zone (4), by the saturation soil sample through being stirred under vacuum kettle mixing, in air free water ring
It is slowly slid under border in soil sample consolidation zone (4)；It covers self-balancing drain bar (3), then each component of counter-force loading system is successively put
It is good；It will be displaced and be transferred to microcomputer (16) through data line (15) with pressure sensor (14), and start microcomputer
(16) with hydraulic system (18), start to prepare soil sample；
Finally, accurately monitoring the minor change in soil sample consolidation zone (4) interior soil sample consolidation process, and then pass through data line
(15) feedback changes displacement and load that hydraulic system (18) apply to mutually feedback in hydraulic system (18), is realized in real time, when reaching
When set sample preparation standard, relevant apparatus is powered off and is removed, terminates sample preparation, and obtain related data:
According to slide into soil sample consolidation zone (4) interior earth material quality and original soil sample consolidation zone (4) in store air free water quality sum,
The quality that water tank (11) collect waste water is subtracted again, obtains the net quality of soil sample consolidation zone (4) interior soil sample, and then it is solid to obtain soil sample
The density of interface (4) interior soil sample；
Miniature calculating is connected to physical property sensor (13) according to the mechanical characteristic sensor (12) in soil sample consolidation zone (4)
The data of machine (16) obtain soil sample physical and mechanical parameter in conjunction with calculated density of soil sample.
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| CN111122348A (en) * | 2019-11-25 | 2020-05-08 | 温州大学 | Computing method for predicting rheological strength of ultra-soft soil with sea area |
| CN111238862A (en) * | 2020-01-11 | 2020-06-05 | 广东顺水工程建设监理有限公司 | Soil sampling and measuring device for engineering supervision |
| CN111879633A (en) * | 2020-06-19 | 2020-11-03 | 东南大学 | Indoor model device for free-fall dynamic sounding test |
| CN112362452A (en) * | 2020-11-18 | 2021-02-12 | 中国科学院力学研究所 | Experimental device and method for simulating axial pipe walking of submarine pipeline on shallow layer of soft clay seabed |
| CN112504785A (en) * | 2020-12-02 | 2021-03-16 | 温州大学 | Test device for preparing ultra-soft soil sample and implementation method thereof |
| CN115950724A (en) * | 2023-03-13 | 2023-04-11 | 中国土木工程集团有限公司 | Preparation method of soft clay for constant-temperature high-salinity test |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915718A (en) * | 2010-08-20 | 2010-12-15 | 中国科学院武汉岩土力学研究所 | Multifunctional soil consolidation and penetration test device and test method thereof |
| CN102175585A (en) * | 2011-01-27 | 2011-09-07 | 河海大学 | Method for testing permeability stability of sand gravel material |
| CN203069580U (en) * | 2013-02-06 | 2013-07-17 | 西南交通大学 | Mechanical calibration device for output load of lever type consolidometer |
| CN104792627A (en) * | 2015-01-31 | 2015-07-22 | 海南大学 | Large frozen soil direct shear device |
| CN104897876A (en) * | 2015-06-12 | 2015-09-09 | 华北水利水电大学 | Expansive soil two-dimensional dilatometer |
| CN108845108A (en) * | 2018-06-22 | 2018-11-20 | 长安大学 | The simulator and measuring method of a kind of Compacted Loess seepage flow and settlement after construction |
| CN209416803U (en) * | 2019-01-03 | 2019-09-20 | 大连理工大学 | A kind of seabed Soft Soil Layer preparation facilities of large scale physical experiments |
-
2019
- 2019-01-03 CN CN201910004070.7A patent/CN109459292A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915718A (en) * | 2010-08-20 | 2010-12-15 | 中国科学院武汉岩土力学研究所 | Multifunctional soil consolidation and penetration test device and test method thereof |
| CN102175585A (en) * | 2011-01-27 | 2011-09-07 | 河海大学 | Method for testing permeability stability of sand gravel material |
| CN203069580U (en) * | 2013-02-06 | 2013-07-17 | 西南交通大学 | Mechanical calibration device for output load of lever type consolidometer |
| CN104792627A (en) * | 2015-01-31 | 2015-07-22 | 海南大学 | Large frozen soil direct shear device |
| CN104897876A (en) * | 2015-06-12 | 2015-09-09 | 华北水利水电大学 | Expansive soil two-dimensional dilatometer |
| CN108845108A (en) * | 2018-06-22 | 2018-11-20 | 长安大学 | The simulator and measuring method of a kind of Compacted Loess seepage flow and settlement after construction |
| CN209416803U (en) * | 2019-01-03 | 2019-09-20 | 大连理工大学 | A kind of seabed Soft Soil Layer preparation facilities of large scale physical experiments |
Non-Patent Citations (1)
| Title |
|---|
| 王芳: "《土工试验专用仪器校验方法指南》", vol. 2018, 河海大学出版社, pages: 81 - 82 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285998A (en) * | 2019-08-09 | 2019-09-27 | 浙江知瑞科技集团有限公司 | A kind of deepwater regions sludge sampler for environment measuring |
| CN110285998B (en) * | 2019-08-09 | 2020-01-21 | 曹麟丰 | Deep water area sludge sampler for environment detection |
| CN111122348A (en) * | 2019-11-25 | 2020-05-08 | 温州大学 | Computing method for predicting rheological strength of ultra-soft soil with sea area |
| CN111122348B (en) * | 2019-11-25 | 2022-09-06 | 温州大学 | Calculation method for predicting rheological strength of ultra-soft soil in marine accumulation |
| CN111238862A (en) * | 2020-01-11 | 2020-06-05 | 广东顺水工程建设监理有限公司 | Soil sampling and measuring device for engineering supervision |
| CN111879633A (en) * | 2020-06-19 | 2020-11-03 | 东南大学 | Indoor model device for free-fall dynamic sounding test |
| CN112362452A (en) * | 2020-11-18 | 2021-02-12 | 中国科学院力学研究所 | Experimental device and method for simulating axial pipe walking of submarine pipeline on shallow layer of soft clay seabed |
| CN112504785A (en) * | 2020-12-02 | 2021-03-16 | 温州大学 | Test device for preparing ultra-soft soil sample and implementation method thereof |
| CN115950724A (en) * | 2023-03-13 | 2023-04-11 | 中国土木工程集团有限公司 | Preparation method of soft clay for constant-temperature high-salinity test |
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