CN105738595B - A kind of soil body disintegration character and underwater information warfare joint test method and experimental rig - Google Patents
A kind of soil body disintegration character and underwater information warfare joint test method and experimental rig Download PDFInfo
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- CN105738595B CN105738595B CN201610087272.9A CN201610087272A CN105738595B CN 105738595 B CN105738595 B CN 105738595B CN 201610087272 A CN201610087272 A CN 201610087272A CN 105738595 B CN105738595 B CN 105738595B
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- 238000010998 test method Methods 0.000 title claims abstract description 14
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- 238000009825 accumulation Methods 0.000 claims abstract description 14
- 230000006641 stabilisation Effects 0.000 claims abstract description 5
- 238000011105 stabilization Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 22
- 238000010521 absorption reaction Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 210000000476 body water Anatomy 0.000 claims description 4
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 2
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- 238000013461 design Methods 0.000 description 3
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- HPNSNYBUADCFDR-UHFFFAOYSA-N chromafenozide Chemical compound CC1=CC(C)=CC(C(=O)N(NC(=O)C=2C(=C3CCCOC3=CC=2)C)C(C)(C)C)=C1 HPNSNYBUADCFDR-UHFFFAOYSA-N 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
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- 238000011160 research Methods 0.000 description 2
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- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
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- 239000010438 granite Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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Abstract
The invention discloses a kind of soil body disintegration character and underwater information warfare joint test method and experimental rig, including load sensor, horizontal strut, up and down screw, screw rod, fixed screw, chassis, padded base, transparent water tank, disk, gauge rod, funnel, circular web plate and sample.When the data stabilization that load sensor measures, it is designated as soil body disintegration and terminates, while record the scale value on gauge rod；Arrange data, draw disintegration curve of the disintegration amount with the time, be worth accumulation body height by iron high scale, and the underwater information warfare of the soil body is calculated by accumulation body height and disc radius.
Description
Technical field
The present invention relates to soil mass water rationality energy experimental technique field, specifically a kind of soil body disintegration character and underwater information warfare
Joint test method and experimental rig.
Background technology
The humidifying of soil is the phenomenon that the soil body is disintegrated in water, and soil body disintegrative refers to the soil body of certain volume in hydrostatic
The middle phenomenon that water suction occurs and disperses, break down into fragment and particle.The disintegrative of soil quantifies according to soil disintegration rate, disintegration rate
Lower, soil anti-scouribility is weaker.With developing rapidly for national economy, country increases the development dynamics of infrastructure.Native stone
Material makes the engineering properties of soil be improved under compaction.Wherein the erosion-resisting characteristics of the soil body is first closed closely with engineering safety, is collapsed
Solve characteristic to ensuring that engineering construction quality is significant, while be also engineering design, build personnel be concerned about key issue it
One.
Underwater information warfare is a key property of the soil body, studies underwater information warfare, and not only Bed Load Movement, bed ripples are transported
The research of dynamic scheduling theory problem play the role of it is important, and for erosion funnel, reservoir sedimentation form before reservoir sedimentation, reservoir dam
And the productivity such as bank stability of bank-protection works problem also has important practical significance.
Soil body disintegration is the heat subject studied in recent decades, and domestic and foreign scholars are not reached to the differential swelling of the soil body
Common recognition.Some scholars start with from temperature, humidity etc., probe into influence of the external environmental factor to disintegration, it was demonstrated that humidity changes to rock
The main reason for soil body disintegration influence is very big, and water content is disintegration, and influence very little of the temperature change to calving disaggregation.Some are learned
Person passes through these factors and water reacted soil body phenomenon point from soil body composition, mineralogical composition property, inside soil body structural analysis
Soil body differential swelling is analysed, they think that the failure mechanism of disintegration mainly has the compression of gas in hole or crack due to being closed
It result in the generation of tensile stress, tensile stress produced due to differential expansion or shear stress causes stress concentration, due to glue between particle
An important factor for knot thing meets water-soluble erosion and causes intensity decreases, and crack, piece reason isostructuralism defect are disintegrations.Also some scholar's pins
The species different to the soil body carries out indoor slaking test, using disintegration amount and disintegration rate as index, controls different influence factors
Summarize analysis, research object mainly includes siltstone, expansive rock, argillaceous soft rock, loess, granite residual soil etc., influences
Factor mainly includes water content, grain composition, granular size, matric suction etc., it is indicated that soil body disintegration rate is with water content
Increase and increase, disintegration amount increases with the increase of coarse granule content, and the good soil body of grading has significant anti-disintegrative, dehydration
The soil body afterwards is easier to be disintegrated, i.e. the stronger soil body of matric suction is more easy to be disintegrated.
Underwater information warfare is the sandy soil maximum that its natural domatic and horizontal plane is formed in accumulation under hydrostatic state
Inclination angle, it is closely related with the factor such as the shape, size, density of particle.Many scholars are carried by experiment, comprehensive all kinds of influence factors
Underwater information warfare calculation formula is gone out.In slaking test, the main measure for considering disintegration amount, the present invention can Accurate Determining disintegration
The change of amount, and the soil body can be disintegrated to the process presentation record of underwater loosely-packed by saturation.
Traditional slaking test method is described in the prior art and determines the test method at angle of repose.Specification provides humidifying
Test method is that the soil sample for having determined moisture content and density is placed in into web plate center, and web plate is hung under floating drum, then holds floating drum
Sample is promptly immersed in water drum and starts stopwatch by neck end, and the moment stabilization for surveying scale at the neat water surface of floating drum when note starts immediately is read
Number and time started.At regular intervals survey note the neat water surface of floating drum at scale reading and describe respectively this when sample disintegration feelings
Condition.
Traditional method, which relies on, arranges the volume of water to determine the disintegration amount of the soil body, using this can learn its defect as with
Disintegration is carried out, and floating drum, which fluctuates, is difficult to the stable accurate scale of reading, causes error in reading big；Soil sample has water imbibition and inside
There is space, the disintegration soil body at initial stage water suction, as disintegration is carried out, the effusion of internal voids gas, cause cubing inaccurate, accurately
Degree declines.
The test method for determining underwater information warfare is that the soil body is toppled over into sample along iron surrounding using small spoon, and small spoon is all the time
It is maintained at from specimen surface height 1cm or so, untill disk outer rim lid completely is full.Then slowly turning stopper, makes circle
Disk steadily rises, and untill chassis sample is left, then measures cone height H, is calculated according to formula and obtain stopping for the soil body
Angle.
The defects of conventional method is the method for being toppled over the soil body using small spoon, for soil body grain diameter difference it is larger when
Certain sorting can be produced during particles fall, therefore is only applicable to that grain diameter difference is little, i.e., the soil of narrow grading
Body；The soil body is entered in water by dry state during experiment, now not up to saturation state, with actual conditions difference, therefore pass
The more difficult accurate underwater information warfare for measuring the soil body of test method of system.
Comprehensive two test methods, by the improvement to conventional test methods defect, proposition accurately can be disintegrated to the soil body
Character and soil body underwater information warfare method of testing and experimental rig.
The content of the invention
Present invention aim to address in the prior art, disintegrating procedue arrange water volume measurement is inaccurate, accuracy declines,
The various soil bodys can not be widely used in, the problems such as disintegration amount and angle of repose can not be determined simultaneously.
To realize that the technical scheme that the object of the invention uses is such, a kind of soil body disintegration character and underwater information warfare
The experimental rig of joint test, it is characterised in that：Including load sensor, horizontal strut, two screw rods, chassis, padded base,
Transparent water tank, disk, gauge rod, funnel, circular web plate and sample.
The chassis is connected with horizontal strut by two screw supports.The chassis, horizontal strut and two screw rod structures
Rectangular framework.
The transparent water tank is placed on chassis.
The load sensor is suspended on horizontal strut.Hook is connected with the load sensor, the hook is logical
Cross some fiber suspension funnels.The mouth of pipe of the funnel is downward.The top end opening of the funnel is covered by circular web plate.It is described
Sample is placed on circular web plate.The funnel, circular web plate and sample are respectively positioned in transparent water tank, and are not had by water.
The padded base is located at the bottom surface of transparent water tank.The disk is arranged on above padded base.On the disk
It is provided with a through hole, the projected position of the position of the through hole with funnel bottom edge on disk is corresponding, on the through hole
Gauge rod is installed.
Further, the chassis is connected with the bottom of screw rod by fixed screw.The screw rod and horizontal strut pass through liter
Drop screw is connected.
Further, the center of the padded base and the circle centre position of disk are provided with screw, the padded base and disk
It is fixedly linked by screw.
Further, the material density of the padded base is more than water.
Further, projection of the disk on transparent water tank, projection of the padded base on transparent water tank is covered completely
Lid.
Further, the aperture of the circular web plate is more than the particle diameter of the largest particles of sample.
Invention additionally discloses a kind of method of testing on above-mentioned experimental rig, it is characterised in that comprises the following steps：
1) experimental rig is placed in ground grading.
2) position of up and down screw, load sensor and padded base is adjusted, makes load sensor center of gravity, circular web plate circle
On the same line, and gauge rod is close with the lower end mouth of pipe of funnel and does not contact for the heart, hopper centre and disc centre.
3) water filling into transparent water tank, water surface elevation are more than funnel top relative to the height of transparent water tank and the height of sample
Spend sum.
4) sample prepared is stably placed to the circle centre position of circular web plate, starts simultaneously at and is adopted by computer data
Collecting system is recorded, and observes and records the disintegration phenomenon of day part sample.
5) when the data stabilization that load sensor measures, it is designated as soil body disintegration and terminates, while record accumulation soil body summit
The corresponding scale value on gauge rod；
6) data are arranged, draw disintegration curve of the disintegration amount with the time, are worth accumulation body height by gauge rod high scale,
And the underwater information warfare of the soil body is calculated by accumulation body height and disc radius；
The disintegration curve is the curve of water absorption course when not considering to consider on-test；
7) repeat step 1)~3), the upper and lower ends of identical sample are clamped with permeable stone, examination is wrapped with rubber membrane
Sample and permeable stone, and with rubber band banding rubber membrane both ends, wrapped sample is steadily put into circular web plate, record sample with
The quality propagation process of time change；
8) step 6) and step 7) the data obtained are arranged, according to considering the disintegrating procedue quality of water absorption course=do not consider to inhale
The disintegrating procedue quality of water process-soil body water absorption course quality, obtain consider on-test when water absorption course disintegration curve.
What deserves to be explained is web plate aperture is relevant with sample maximum particle diameter, the more big then sample disintegration soil body in aperture is easier
Leak down completely from aperture, but when aperture is excessive then due to the stress concentration of hole, so as to influence the accuracy of disintegrating procedue.Institute
With, the selection of web plate pore size is particularly significant, it is proposed that：When radii of soil particles is smaller, it is 1cm2's to take hole area
Web plate is tested；When soil sample particle diameter is excessive, web plate aperture should be greater than the particle diameter of the largest particles, i.e. D >=dmax。
Measure that the disk diameter of underwater information warfare is bigger, and the result measured is more accurate, it is accurate for guarantee test achievement,
The lower limit of disk diameter should be depending on the upper limit of sample particle diameter, and the angle of repose that domestic general disk diameter is 10cm at present determines
Instrument, and provide to be applied to the cohesiveless soil that particle diameter is less than 2mm.But it is more than particle diameter can be run into suitable for the sample of the present invention
2mm cohesiveless soil, therefore it is proposed that, if sample particle diameter is more than 2mm, it is 20cm to take disk diameter.
The solution have the advantages that unquestionable, the present invention has advantages below：
1) present invention can determine disintegration amount and angle of repose simultaneously, avoid test of many times, saved the time and experiment into
This, improves test efficiency.
2) present invention, avoiding the volume that measurement arranges water, therefore the read untrue in disintegrating procedue, the soil body are avoided
Volume inaccuracy problem is measured caused by the problems such as inner air escapes.The present invention can be tried with Accurate Determining disintegration amount and angle of repose
Test.
3) present invention can determine the underwater information warfare of the saturation soil body, suitable for more soil bodys.
4) present invention is measured using sensor with signal acquiring system, can be disintegrated the soil body to underwater pine by saturation
Dissipate the mass change process accurate recording of accumulation.
5) present invention consider the soil body disintegration starting stage water absorption course, independent experiment determine after with soil body slaking test
Curve combines, and it is more accurate to calculate disintegration amount.
Brief description of the drawings
Fig. 1 is the structural representation of the disintegration of the measurement soil body and underwater information warfare combined unit；
Fig. 2 is the structural representation of circular web plate；
Fig. 3 is the structural representation of gauge rod and disk；
Fig. 4 is the structural representation of padded base；
Fig. 5 is sample grading curve；
Fig. 6 is the disintegrating procedue figure-of-merit curve for not considering water absorption course；
Fig. 7 is soil body water absorption course figure-of-merit curve；
Fig. 8 is the disintegrating procedue figure-of-merit curve for considering water absorption course.
In figure：Load sensor 1, horizontal strut 2, up and down screw 3, screw rod 4, fixed screw 5, chassis 6, padded base 7,
Transparent water tank 8, disk 9, gauge rod 10, funnel 11, circular web plate 12, sample 13.
Embodiment
With reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, all should be included within the scope of the present invention.
Embodiment 1：
A kind of experimental rig of soil body disintegration character and underwater information warfare joint test, it is characterised in that：Passed including loading
Sensor 1, horizontal strut 2, up and down screw 3, two screw rods 4, fixed screw 5, chassis 6, padded base 7, transparent water tank 8, disks
9th, gauge rod 10, funnel 11, circular web plate 12 and sample 13.
The bottom of screw rod 4 is connected by fixed screw 5 with chassis 6, and the top of screw rod 4 is propped up by up and down screw 3 with horizontal
Bar 2 is connected, and the horizontal strut 2 is parallel to chassis 6.
Wherein, fixed screw 5 is fixed on the bottom on chassis 6, and screw rod 4 and chassis 6 are fixed together by fixed screw 5；Rise
Drop screw 3 can be rotated so as to move up and down along the hand of spiral of screw rod 4, and the up and down screw 3 props up positioned at horizontal
Bar lower end, up and down screw 3 prop up horizontal strut 2,2 movements with moving up and down for up and down screw 3 of horizontal strut 2, so as to
Change position.
One end of the load sensor 1 is connected with the center of horizontal strut 2, and the other end passes through hook with funnel 11
It is connected, the hook passes through fiber suspension funnel 11, and the top disc of funnel 11 is parallel to horizontal strut 2.
The edge surrounding of the funnel 11 is provided with hole, and circular web plate 12 is arranged on to the top of funnel 11 by thin wire
The diameter of circular web plate 12 described in opening and the top cross-sectional diameter of funnel 11 are equal.Circle used in the present embodiment
The diameter D=20cm of web plate 12, aperture d=10mm.
The sample 13 is placed on the circle centre position of circular web plate 12, the center of gravity of load sensor 1, the central shaft of funnel 11,
The circular center of circle of web plate 12 and the center of gravity of sample 13 are on the same line.A diameter of 101mm of the sample 13, it is highly 100mm,
Particle maximum particle diameter 10mm in the sample 13.
The transparent water tank 8 is placed on the center on chassis 6, and the padded base 7 is placed on the centre bit of transparent water tank 8
Put, the padded center of base 7 is provided with screw.
The diameter D=20cm of the disk 9 circle centre position is provided with screw, the padded diameter 10cm of base 7, high 2cm with
Disk 9 is mutually fixed by screw.A through hole, institute are provided with the projected position of the bottom edge of the funnel 11 on the disk 9
State and gauge rod 10 range 5cm, scale division value 1mm are installed on through hole.
The gauge rod 10 can be arranged on the lead to the hole site of the circle centre position of disk 9, when gauge rod 10 is located at this position, it is easier to
When placing each part, its center is set to be aligned on straight line；It is to prevent from collapsing when gauge rod 10 is placed in hopper outlet edge
The soil body that solution falls hits gauge rod and changes sinking track, can more accurately measure underwater information warfare size.
The material of padded base 7 used in the present embodiment is preferably cast iron.Density of material is big, place water in be not easy by
There is a prefabricated screw at interference, center, and effect, which has, determines disc centre position, and fixed disc will not be fallen in particles fall
Soil disturbance.
Embodiment 2：
Using the experimental rig in embodiment 1, carry out soil body disintegration character and underwater information warfare joint test, its feature exist
In comprising the following steps：
1) experimental rig is placed in ground grading.
2) position of up and down screw 3, load sensor 1 and padded base 7 is adjusted, makes the center of gravity of load sensor 1, circular net
On the same line, and the lower end mouth of pipe of gauge rod 10 and funnel 11 is close and not for the center of circle of plate 12, the center of funnel 11 and the center of disk 9
Contact.
3) water filling into transparent water tank 8, water surface elevation are more than height and sample 13 of the funnel top relative to transparent water tank 8
Height sum.I.e. water surface elevation did not had the top surface of sample 13.
4) sample 13 is prepared：Mud stone particle is selected to be matched somebody with somebody as experiment earth material according to the grain composition (such as table 1) of design
Material, it is the compactive effort energy compaction test of standard, moisture content 10%, maximum dry density 2.165g/cm3.Fig. 1 is the present embodiment pilot scale
The grading curve of sample 13.
The Grading feature value table of table 1
The sample 13 prepared is stably placed to the circle centre position of circular web plate 12, starts simultaneously at and passes through computer data
Acquisition system is recorded, and observes and records the disintegration phenomenon of day part sample.
5) when the data stabilization that load sensor 1 measures, it is designated as soil body disintegration and terminates, while record accumulation soil body summit
The corresponding scale value on gauge rod 10.The avalanche soil body can tumble from full disk in disintegrating procedue, and will not deposit in circle
Plate edge.
6.1) data are arranged, draw disintegration curve of the disintegration amount with the time, wherein,
Disintegration amount calculation formula：
mtFor in the quality of the t soil body；m0For the initial mass of the soil body；At is the disintegration amount of the soil body.
Fig. 6 is that disintegrating procedue sample mass changes over time curve map.
As shown in fig. 6, when carrying out slaking test, if it is 13 larger to materials, test data display soil body quality has elder generation
The process reduced after increase, with slaking test difference in itself.This is due to that sample is immersed in the water and has a water absorption course,
And be disintegrated and not yet start completely, so growth occurs in quality.Therefore, submerging test is carried out to sample, measures soil sample and inhale in itself
The mass change of water process.
6.2) it is worth accumulation body to be highly 4.1cm by gauge rod high scale, and passes through accumulation body height and disc radius
Calculate the underwater information warfare of the soil body.
Measurement underwater information warfare calculation formula be：
Wherein, it is the underwater information warfare of the soil body；L is that the scale value on soil body vertex correspondence gage is accumulated on disk；R is circle
Disk radius.
In the present embodiment, accumulation body is highly 4.1cm,
The underwater information warfare：
Embodiment 3：
Using the experimental rig in embodiment 1, carry out soil body disintegration character and underwater information warfare joint test, its feature exist
In comprising the following steps：
1) experimental rig is placed in ground grading.
2) position of up and down screw 3, load sensor 1 and padded base 7 is adjusted, makes the center of gravity of load sensor 1, circular net
On the same line, and the lower end mouth of pipe of gauge rod 10 and funnel 11 is close and not for the center of circle of plate 12, the center of funnel 11 and the center of disk 9
Contact.
3) water filling into transparent water tank 8, water surface elevation are more than height and sample 13 of the funnel top relative to transparent water tank 8
Height sum.I.e. water surface elevation did not had the top surface of sample 13.
4) sample 13 is prepared：Mud stone particle is selected to be matched somebody with somebody as experiment earth material according to the grain composition (such as table 1) of design
Material, reality, moisture content 10%, maximum dry density 2.165g/cm can be hit by doing the compactive effort of standard3.Fig. 1 is sample 13 in the present embodiment
Grading curve.
The Grading feature value table of table 1
The upper and lower ends of sample 13 prepared are clamped with permeable stone, it is with rubber membrane that sample and permeable stone is fully wrapped around,
With rubber band banding rubber membrane both ends, now sample 13 will not be disintegrated；
The sample 13 wrapped is stably placed to the circle centre position of circular web plate 12, starts simultaneously at and passes through computer data
Acquisition system is acquired, the quality propagation process that record sample 13 changes over time.
Fig. 7 is the curve map that the quality of sample 13 changes over time.
When measuring soil body water absorption course, water quality calculation formula is：Δ m=mi-mi-1
Δ m is the of poor quality of two periods；miFor in the quality of the i moment soil bodys；mi-1For in the matter of the i-1 moment soil bodys
Amount.
5) according to：Consider disintegrating procedue quality-soil body of disintegrating procedue quality=the do not consider water absorption course of water absorption course
Water absorption course quality, the data in Fig. 6, Fig. 7 are calculated and drawn, obtain Fig. 8, that is, consider the disintegrating procedue of water absorption course
Quality.
Claims (7)
- A kind of 1. experimental rig of soil body disintegration character and underwater information warfare joint test, it is characterised in that：Sensed including loading Device (1), horizontal strut (2), two screw rods (4), chassis (6), padded base (7), transparent water tank (8), disk (9), gauge rod (10), funnel (11), circular web plate (12) and sample (13)；The bottom of two screw rods (4) is connected with chassis (6), and apical support plays horizontal strut (2)；The chassis (6), level Pole (2) and two screw rods (4) form rectangular frame；The transparent water tank (8) is placed on chassis (6)；The load sensor (1) is suspended on horizontal strut (2)；Hook, the extension are connected with the load sensor (1) Hook passes through some fiber suspension funnels (11)；The mouth of pipe of the funnel (11) is downward；The top end opening quilt of the funnel (11) Circular web plate (12) covering；The sample (13) is placed on circular web plate (12)；The funnel (11), circular web plate (12) and Sample (13) is respectively positioned in transparent water tank (8), and is not had by water；The padded base (7) is located at the bottom surface of transparent water tank (8)；The disk (9) is arranged on above padded base (7)；Institute State and a through hole is provided with disk (9), position and projected position of funnel (11) bottom edge on disk (9) of the through hole It is corresponding, gauge rod (10) is installed on the through hole.
- 2. the experimental rig of a kind of soil body disintegration character according to claim 1 and underwater information warfare joint test, it is special Sign is：The chassis (6) is connected with the bottom of screw rod (4) by fixed screw (5)；The screw rod (4) and horizontal strut (2) It is connected by up and down screw (3).
- 3. the experimental rig of a kind of soil body disintegration character according to claim 1 and underwater information warfare joint test, it is special Sign is：The center of the padded base (7) and the circle centre position of disk (9) are provided with screw, the padded base (7) and disk (9) it is fixedly linked by screw.
- 4. the experimental rig of a kind of soil body disintegration character according to claim 1 and underwater information warfare joint test, it is special Sign is：The material density of the padded base (7) is more than water.
- 5. the experimental rig of a kind of soil body disintegration character according to claim 1 and underwater information warfare joint test, it is special Sign is：Projection of the disk (9) on transparent water tank (8), projection of the padded base (7) on transparent water tank (8) is complete All standing.
- 6. the experimental rig of a kind of soil body disintegration character according to claim 1 and underwater information warfare joint test, it is special Sign is：The aperture of the circular web plate (12) is more than the particle diameter of the largest particles of sample (13).
- 7. a kind of method of testing on experimental rig described in claim 2, it is characterised in that comprise the following steps：1) experimental rig is placed in ground grading；2) position of up and down screw (3), load sensor (1) and padded base (7) is adjusted, makes load sensor (1) center of gravity, circle Shape web plate (12) center of circle, funnel (11) center and disk (9) center on the same line, and under gauge rod (10) and funnel (11) End pipe mouth is close and does not contact；3) to transparent water tank (8) interior water filling, water surface elevation is more than height and sample of the funnel top relative to transparent water tank (8) (13) height sum；4) sample prepared (13) is stably placed to the circle centre position of circular web plate (12), started simultaneously at by computer number Recorded according to acquisition system, and observe and record the disintegration phenomenon of day part sample；5) when the data stabilization that load sensor (1) measures, it is designated as soil body disintegration and terminates, while record accumulation soil body summit pair Should be in the scale value on gauge rod (10)；6) data are arranged, draw disintegration curve of the disintegration amount with the time, are worth accumulation body height by gauge rod (10) high scale, And the underwater information warfare of the soil body is calculated by accumulation body height and disc radius；The disintegration curve is the curve of water absorption course when not considering on-test；7) repeat step 1)~3), the upper and lower ends of identical sample (13) are clamped with permeable stone, examination is wrapped with rubber membrane Sample (13) and permeable stone, and with rubber band banding rubber membrane both ends, wrapped sample (13) is steadily put into circular web plate (12) the quality propagation process that, record sample changes over time；8) step 6) and step 7) the data obtained are arranged, according to considering the disintegrating procedue quality of water absorption course=do not consider to absorb water The disintegrating procedue quality of journey-soil body water absorption course quality, obtain consider on-test when water absorption course disintegration curve.
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| CN110082499A (en) * | 2019-04-10 | 2019-08-02 | 中铁第四勘察设计院集团有限公司 | A kind of soil body character test device and its test method |
| CN110632278A (en) * | 2019-10-25 | 2019-12-31 | 福州大学 | Experimental determination device and method for soil body disintegration characteristics under different flow velocity conditions |
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| CN102565305A (en) * | 2012-01-05 | 2012-07-11 | 西北农林科技大学 | Test method for measuring humidification, disintegration and dispersion of soil mass |
| CN103399140B (en) * | 2013-08-09 | 2014-12-17 | 中国科学院武汉岩土力学研究所 | Rock and soil disintegration test device as well as using method |
| CN103913111A (en) * | 2014-03-13 | 2014-07-09 | 河海大学 | Fine-particle sediment underwater repose angle measuring device and measuring method thereof |
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