CN108051340A - A kind of debris flow slurry dynamic yield stress measuring device and its measuring method - Google Patents
A kind of debris flow slurry dynamic yield stress measuring device and its measuring method Download PDFInfo
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- CN108051340A CN108051340A CN201711007926.3A CN201711007926A CN108051340A CN 108051340 A CN108051340 A CN 108051340A CN 201711007926 A CN201711007926 A CN 201711007926A CN 108051340 A CN108051340 A CN 108051340A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000005259 measurement Methods 0.000 claims abstract description 39
- 239000011435 rock Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 33
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000002474 experimental method Methods 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000009184 walking Effects 0.000 claims description 46
- 230000007246 mechanism Effects 0.000 claims description 44
- 230000005611 electricity Effects 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 24
- 238000005183 dynamical system Methods 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 15
- 230000005389 magnetism Effects 0.000 claims description 7
- 238000013480 data collection Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
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- 229910000831 Steel Inorganic materials 0.000 claims description 3
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- 239000004615 ingredient Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
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Classifications
-
- 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
-
- 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
- G01N2011/0026—Investigating specific flow properties of non-Newtonian fluids
- G01N2011/0033—Yield stress; Residual stress at zero shear rate
Abstract
The present invention relates to a kind of debris flow slurry dynamic yield stress measuring device and its measuring methods, belong to mud-rock flow Control Engineering field.Mainly include：Work pedestal, material conveyor, agitating device, water supply installation, control panel, slurry conveying device, inclined-plane rheological device, yield stress measurement display device.The debris flow slurry that the material of certain particle size ingredient is configured to can be transported to the inclined-plane rheological device by the work pedestal, material conveyor, agitating device, water supply installation, slurry transporter, control panel and carry out rheological experiment, the yield stress measurement display device gather and handles in experiment back bevel rheological device Debris Flow Deposition volume data to calculate the yield stress of debris flow slurry, and then measures in yield stress and shown in display device.
Description
Technical field
The present invention relates to a kind of debris flow slurry dynamic yield stress measuring device and its measuring methods, belong to mud-rock flow
Control Engineering field.
Background technology
Mud-rock flow is one of common geological disaster in mountain area, serious to restrict the development of China's mountain area economy, therefore to mud-rock flow
Prevention is theoretical particularly urgent with the research of technology.Yield stress is the key that mud-rock flow rheological parameter, it is related to mud-rock flow stream
The calculating of the kinetic parameters such as speed, impact force, therefore be Prediction of debris flow disaster to the understanding and research of mud-rock flow yield stress
One of with the important step of engineering control.Mud-rock flow yield stress is mainly obtained by rheometer at present, but rheological experiment obtains
The parameter is taken to be primarily present two problems：
(1) rheological experiment obtains stress-shear rate gradient curve generally by traditional rheometer, then to song
The linear segment of line, which is returned, to obtain yield stress indirectly, and the yield stress is a recurrence stress, is not really to anticipate
Dynamic yield stress in justice, and the measuring instrument can not avoid the generation of Wall Slip Phenomenon during the experiment, therefore into
One step increases the error of measurement mud-rock flow yield stress.
(2) conventional rheological experiment be typically limited to fine grained (<2mm) debris flow slurry carries out yield stress test,
And be containing big particle in true debris flow slurry, then it can not be tested with conventional rheometer, though there are many domestic
Outer mud-rock flow expert voluntarily develop cone disk type (phillips and Davies, 1989), it is rotary (Coussot and Piau,
1995), flat (Wang Yuyi, 2002[4]) etc. various structures large-scale rheometer carry out rheological test, but these devices to behaviour
It is required higher, and the factors on test result such as settling in measurement process, uneven shearing is affected, therefore measurement result
It is less reproducible, precision needs further improve.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of debris flow slurry dynamic yield stress measuring device and its surveys
Amount method, for the above-mentioned prior art there are the problem of and deficiency, with the flowing of analogue simulation debris flow slurry and can accumulate
Journey, and can accurately calculate the yield stress of debris flow slurry.The dynamic yield stress measuring device is easy to operate, result is steady
It is fixed, it has abandoned traditional rheometer and has been returned by obtaining stress-shear rate gradient curve, then to the linear segment of curve
Carry out the shortcomings that obtaining yield stress indirectly, improve conventional rheological experiment be generally limited only to fine grained (<2mm) mud-rock flow
The present situation of slurry yield stress measurement.It can directly apply to the measurement of the yield stress of bulky grain mud-rock flow, be mud-rock flow
Hazard prediction and engineering control provide the foundation data.
The technical solution adopted by the present invention is：A kind of mud-rock flow yield stress measuring device, including workbench pedestal, material
Transporter, water supply installation, agitating device, control panel 1, slurry conveying device, inclined-plane rheological device, yield stress measurement are aobvious
Showing device；
The workbench pedestal includes beam column 2, L-type crossbeam 7, longeron 11, rectangular-shaped top plate 6, inclined ladder 8, rectangular flat 9；
Beam column 2 is four, and the L-type crossbeam 7 and longeron 11 are respectively two, and two L-type crossbeams, 7, two longerons 11 are put down respectively
Row is arranged on the middle and upper part of beam column 2, is fixedly connected with two adjacent beam column；Rectangular longitudinal beam 11 plays the work of firm beam column
With L-type crossbeam 7 is used to support rectangular flat 9, and the rectangular flat 9 is less than 7 length of L-type crossbeam, the tablet along its length
6 are supported by beam column 2, and every beam column 2 supports an angle of rectangular-shaped top plate 6, and rectangular flat 9 is fixed on 8 top of stair
On, lower part is fixed on ground；
The material conveyor includes lifting funnel 4, lifting motor 3, conveyer belt 5, fixed funnel 10；The lifting electricity
Machine 3 is fixed in rectangular-shaped top plate 6, and the lifting funnel 4 is connected with lifting motor 3, and passes through 3 rotating of lifting motor, can be incited somebody to action
Lifting funnel is promoted to and on conveyer belt 5, the fixed funnel 10 is by being fixed on the fixed pulley of rectangular-shaped top plate 6 and conveyer belt 5
End connects, and the material on the conveyer belt 5 is transported by fixed funnel 10 to agitating device；Lifting motor 3, conveyer belt 5 divide
It not being connected by electric wire with the independently-powered unit of control panel 1, the control panel 1 is fixed on the longeron 11, and its
There are several power supply units, each power supply unit works independently, is independent of each other；
The water supply installation includes water tank 13, water pipe 14, water pump 15, water valve 16；The water tank 13 is fixed on rectangle
On tablet 9, the water pipe 14 has 4 ports, and a port is connected with water tank 13, and second port is connected with water pump 15,
3rd port is connected with water valve 16, and the 4th port is connected with agitating device；The water pump 15 passes through electric wire and control panel 1
An independently-powered unit connection；
The agitating device includes hopper 17, mixer 12, and the hopper 17 is fixed on rectangular flat 9, mixer 12
Fixed and 17 bottom of hopper, the mixer 12 are connected by electric wire with a power supply unit of control plane 1；
The slurry conveying device include mud valve 18, slush pump 19, discharge nozzle 20, telescoping tube 21, semi-circular groove 22,
Hydraulic cylinder 23, feed pipe 24；The discharge nozzle 20 is there are four port, and port one to be connected with hopper 17, port two and mud valve
18 connections, port three are connected with slush pump 19, and port four is connected with the telescoping tube 21,21 other end of telescoping tube and charging
Pipe 24 connects, and the other end of feed pipe 24 is connected with inclined-plane rheological device, wherein the telescoping tube 21 is supported by hydraulic cylinder 23,
The hydraulic cylinder 23 and telescoping tube 21 and between be equipped with semi-circular groove 22；
The inclined-plane rheological device includes gate 25, gate lifting system, storage tank 26, flow-through grooves 27, transverse baffle
28th, air-bubble leveling ruler 29, bottom plate jacking system, bottom plate 32, data acquisition board 33, base platform, digital display inclinometer 36；
32 head of bottom plate is supported by two bottom plate jacking systems, and described two bottom plate jacking systems are arranged on bottom plate
Head on both sides can make inclined-plane rheological device reach target tilt angle i by jacking system, and each bottom plate jacking system includes liquid
Jack 30, circular pipe clamp 301, rubber washer 302, pipe 31 are pressed, described 31 one end of pipe is connected with 32 stem lateral margin of bottom plate,
The other end is supported by hydraulic jack 30, and circular pipe clamp 301, the circle are equipped between the hydraulic jack 30 and pipe 31
Pipe clamp 301 is internally provided with rubber washer 302；Air-bubble leveling ruler 29, the gas are provided between the both sides bottom plate jacking system
Soaked leveling ruler 29 is fixed on 32 head top edge of bottom plate, makes 29 bubble of air-bubble leveling ruler placed in the middle by adjusting both sides jacking system；
32 afterbody of bottom plate is supported by base platform, and the base platform includes air-bubble level 33, levelling foot 34, pedestal
35,32 afterbody of bottom plate is placed on pedestal 35, and the pedestal 35 is equipped with air-bubble level 33, by adjusting levelling foot 34
Length makes air-bubble level placed in the middle.
The storage tank 26 is arranged on 32 central axes of bottom plate, and 26 bottom plate of storage tank is fixed on 32 head of bottom plate, the storing
Case 26 is equipped with slurry outlet, and the gate 25 is arranged on slurry outlet, and 25 top of gate is equipped with gate lifting system, the lock
Door lifting system includes lift lever 251, cylinder 252；The cylinder 252 is connected by electric wire with control panel 1, the cylinder
252 are located at the top of gate 25, and are connected with one end of lift lever 251, and the other end and the gate 25 of the lift lever 251 connect
It connects；
The flow-through grooves 27 are connected with the slurry outlet of storage tank 26, and the flow-through grooves 27 are solid including bottom plate and respectively
It is scheduled on the side plate of bottom plate both sides, the side plate afterbody and 28 vertical connection of transverse baffle；The bottom plate of the flow-through grooves 27 is fixed
It on bottom plate 32, and is seamlessly connected with data acquisition board 33, the data acquisition board 33 is fixed on bottom plate 32；Flow-through grooves 27
The free material layer for changing 33 roughness of flow-through grooves 27 and data acquisition board is equipped with 33 upper surface of data acquisition board, it is described
Digital display horizontal inclinometer 36 is placed in 33 edge of data acquisition board, for measuring the angle of inclination i of inclined-plane rheological device；
The yield stress measurement display device includes：Running gear, infrared ambulator group, infrared ambulator folder
Tool, DATA REASONING display device 43；
The running gear includes concave beam column 37, guide rail 38, walking mechanism 39, lightweight pipe 40；The beam column 37 has
Four, every beam column 37 open up rectangle sliding slot along its length, and be respectively arranged at 33 4 corner points of data acquisition board, hang down
It is directly fixed on bottom plate 32, is connected along between adjacent two beam column 37 on 27 direction of flow-through grooves with guide rail 38, the guide rail 38
Both ends are arranged among 37 rectangle sliding slot of beam column, and magnetic material built in 38 both ends of guide rail, by being sleeved on embracing on beam column 37
The position for adjusting and fixing guide rail is bound round, makes the plane residing for two guide rails 38 parallel to data acquisition board 33；
There are two the walking mechanisms 39, is respectively mounted magnetic sensor, is respectively placed on two guide rails 38, can be on guide rail 38
Move back and forth, the walking mechanism 39 include dynamical system, dead electricity type electromagnet 391, spring 392, wheel 393, suspension 394,
Drive shaft 395, axle 396, battery pack 399；The suspension 394 is connected with axle 396, suspension 394 be internally provided with dynamical system,
Battery pack 399, the battery pack 399 are powered for dynamical system and dead electricity type electromagnet 391, and the dynamical system includes motor
397th, retarder 398, dynamical system are engaged by gear with the gear of the drive shaft 395 inside the axle 396, the wheel
393 are connected by drive shaft 395, and the dead electricity type electromagnet 391 is arranged at 394 lower section of suspension, and dead electricity type electromagnet 391 is with hanging
It is connected between frame 394 by spring 392, in energization, dead electricity type electromagnet 391 is without magnetism, during power-off, dead electricity type electricity
Magnet has magnetism, can hold guide rail rapidly, when avoiding the walking mechanism 39 from being stopped, glides under self gravitation effect；
It is connected between two walking mechanism 39 with lightweight pipe 40, the lightweight pipe 40 is used to multiply borne infrared ranging
Instrument group, the rangefinder group include infrared ambulator I 41 and infrared ambulator II 411, and infrared ambulator I 41 is fixed on
Above 33 central axes of data acquisition board, for measuring the distance h at infrared ambulator I 41 to 33 central axes of data acquisition board1,
Infrared ambulator II 411 is placed in the end of lightweight pipe, for measuring infrared ambulator II 411 to 33 side of data acquisition board
The distance h of edge2If in the case of there is no accumulation body at data acquisition board central axes, h1=h2；Otherwise, the difference of the two can be passed through
Thickness h=h of deposit at 33 central axes of data acquisition board can be calculated1-h2；Infrared ambulator group and lightweight pipe 40 it
Between be equipped with infrared ambulator fixture, the infrared wire holder includes circular card slot 421, is equipped with 423 and of anti-skid washer in card slot
The buckle-type stent 422 being fixed on circular card slot), circular card slot 421 is fixed on lightweight pipe 40, the buckle-type stent
The infrared ambulator group is placed on 422, infrared ambulator is rotated on lightweight pipe 40 by circular card slot 422
The infrared ray light velocity that group is sent is perpendicular to data acquisition board 33；
The DATA REASONING display device 43 includes control device 431, detection device 432, recording device 433, display dress
Put 434；The detection device 432 is connected with infrared ambulator group by data cable, for gathering and handling infrared distance measuring
The data h of instrument group1、h2；The recording device 433 is connected with detection device 432, for storing measurement data and to measurement data
Do time calibrating；The control device 431 respectively with detection device 432, recording device 433, display device 434, walking mechanism
39 connections, and control device 431 judges the data h for monitoring the measurement data in real time1、h2It is whether equal, and in h1
≠h2When, the recording device 432 is controlled to preserve the measurement data and does time calibrating；The walking mechanism 39 is filled in control
It puts under 431 control, can be along the at the uniform velocity front and rear walking of guide rail 38, and when walking mechanism 39 runs to 38 end of guide rail, guide rail 38
The magnetic material of end causes magnetic sensor in walking mechanism 39 to work, and magnetic sensor sends control to control device 431
Information, stopping battery pack 399 is powered after control device 431 receives information, then walking mechanism 39 is stopped, dead electricity type electromagnetism
Iron 391 embraces guide rail 38 at once, and walking mechanism 39 is avoided to glide under self gravitation effect.
8 top of stair is fixed in a welding manner on rectangular flat 9.
The lifting funnel 4 is connected by steel strand wires with lifting motor 3.
The hopper 17 is fixed on by large-scale screw on rectangular flat 9.
It is welded with 32 stem lateral margin of bottom plate described 31 one end of pipe.
A kind of measuring method of mud-rock flow yield stress detection device, includes the following steps：
Step 1, the levelling foot for adjusting base platform, make air-bubble level bubble placed in the middle, by pedestal modulation level；Adjust bottom
Plate jacking system makes the data acquisition board 33 on bottom plate 32 reach target tilt angle i, and keeps the bubble level on bottom plate 32
29 bubble of ruler is placed in the middle；
Step 2, the pressure value for setting water pump 15, it is quantitative to be pumped toward agitating device, while lift funnel 4 and lifting motor 3
Connection, and passes through 3 rotating of lifting motor, can will lifting funnel be promoted to on conveyer belt 5, conveyer belt 5 by material transportation extremely
Fixed funnel 10, then agitating device is transported to by fixed funnel 10；
Quantitative material and quantitative water are stirred into the debris flow slurry of experiment specified density by step 3, agitating device, so
The debris flow slurry after stirring is delivered in the storage tank 26 of inclined-plane rheological device by slurry conveying device afterwards, regulating gate
Lifting device lift gate 25 discharges debris flow slurry, and debris flow slurry is flowed to by flow-through grooves 27 in data acquisition board 33；
After slurry in step 4, pending data collection plate 33 stops flowing, control device 431 controls walking mechanism 39 from number
It is walked according to the afterbody of collection plate 33 along guide rail 38 with speed v, and monitors 432 measurement data of detection device in real time；
Step 5, control device 431 judge h1Whether h is equal to2, work as h1=h2When, step 4 is continued to execute, works as h1≠h2When,
Perform step 6；
Step 6, control device 431 control recording device 433 to store measurement data and do time calibrating to measurement data, i.e.,
Storage time t-h1(h2) curve, control device 431 is according to time t, v, h1、h2Can the place of calculating go out on range data collection plate 33
Deposit edge x at ulking thickness be h；
Dynamic yield stress τ is calculated according to x and h in step 7, control device 431y, will finally be bent by control device 431
Take the display screen display that stress value is transferred to display device 434.
Described is calculated dynamic yield stress τ according to x and hyCalculation formula be：
Wherein, ρ --- material density, unit kgm-3, g --- acceleration of gravity, unit N/kg, value takes
9.81N/kg；I is the angle of inclination of data acquisition board 33, and unit is degree.
Beneficial effects of the present invention are：
1. the present invention overcomes traditional rheometers by obtaining stress-shear rate gradient curve, then to the linear of curve
Part is returned the shortcomings that obtain yield stress indirectly.
2. present invention improves conventional rheological experiment be generally limited only to fine grained (<2mm) debris flow slurry is surrendered
The present situation of stress measurement.It can directly apply to the measurement of the yield stress containing bulky grain mud-rock flow, further to reality
The truth of border mud-rock flow provides the foundation data for Prediction of debris flow disaster and engineering control.
3. the present invention is provided with the water supply installation of mud-rock flow, by adjusting the size of water supply installation water-aspirator pressure, to control
Into the water for storing object pond, and then it can configure the debris flow slurry of specified density.
4. the present invention is provided with agitating device, traditional manual mixing material is avoided, that is, saves the time, in turn avoids hand
Work mixes non-uniform phenomenon, causes test error larger.
5. the present invention is provided with slush pump, be conducive to the emptying of mud in hopper；And when store object pool volume it is inadequate when, can be
After gate is opened, by adjusting pump speed, the mud in storage object pond is made to ensure in elemental height until reaching mud amount needed for experiment.
6. the present invention is equipped with flow-through grooves, the mud for being conducive to storage tank is slowly guided from fixed position by self gravitation
To data acquisition board, after gate can be avoided to open, mud is under the action of gravitional force, the slurry outlet directly from storage tank
It sprays, causes error of test data larger.
7. the present invention is provided with pave-load layer in the upper surface of flow-through grooves, data acquisition board, by the material for changing pave-load layer
Material, to simulate the roughness of real surface.
8. the present invention is provided with infrared ambulator group, obtained indirectly by the difference of two infrared ambulator data
The ulking thickness of debris flow slurry, it is easy to operate, experimental data is objective and accurate.
Description of the drawings
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is the principle of the present invention figure；
Fig. 3 is the L-type cross beam support rectangular flat figure of the present invention；
Fig. 4 is the inclined-plane rheological device top view of the present invention；
Fig. 5 is the telescoping tube of the present invention and semi-circular groove structure diagram；
Fig. 6 is the gate of the present invention and the assembling schematic diagram of gate lifting system；
Fig. 7 is the top view of Fig. 5 gates；
Fig. 8 is the circular card slot schematic diagram in the bottom plate jacking system of the present invention；
Fig. 9 is the structure diagram that the concave beam column of the running gear of the present invention is connected with guide rail；
Figure 10 is the top view of a concave beam column in Fig. 8；
Figure 11 is the internal structure schematic diagram of walking mechanism in running gear of the invention；
Figure 12 is the structure diagram of the infrared ambulator fixture of the present invention；
Figure 13 is the module connection diagram of DATA REASONING display device of the present invention；
Figure 14 is the infrared ambulator group measurement distance difference of the present invention and the correspondence figure of time of measuring.
In figure respectively marked as：1- control panels, 2- beam columns, 3- lifting motors, 4- lifting funnel, 5- conveyer belts, 6- squares
Shape top plate, 7-L types crossbeam, 8- stair, 9- rectangular flats, 10- fixed funnels, 11- longerons, 12- mixers, 13- water tanks,
14- water pipes, 15- water pumps, 16- water valves, 17- hoppers, 18- mud valves, 19- slush pumps, 20- discharge nozzles, 21- telescoping tubes, 22- half
Circular trough, 23- hydraulic cylinders, 24- feed pipes, 25- gates, 251- lift levers, 252- cylinders, 26- storage tanks, 27- circulations are recessed
Slot, 28- transverse baffles, 29- air-bubbles leveling ruler, 30- hydraulic jacks, 301- circles pipe clamp, 302- rubber washers, 31- pipes,
32- bottom plates, 33- data acquisition boards, 34- levelling foots, 35- pedestals, 36- digital display inclinometers, 37- concaves beam column, 38- guide rails, 39-
Walking mechanism, 391- dead electricity types electromagnet, 392- springs, 393- wheels, 394- suspensions, 395- drive shafts, 396- axles, 397-
Motor, 398- retarders, 399- battery packs, 40- lightweights pipe, 41- infrared ambulators I, 411- infrared ambulators II,
42- infrared ambulators fixture, 421- circles card slot, 422- buckle-types stent, 423- anti-skid washers, 43- DATA REASONINGs are shown
Equipment.
Specific embodiment
In the following with reference to the drawings and specific embodiments, technical scheme is further illustrated.
Embodiment 1：As represented in figures 1 through 14, mud-rock flow yield stress detection device, including workbench pedestal, material transportation
Device, water supply installation, agitating device, control panel 1, slurry conveying device, inclined-plane rheological device, yield stress measurement display dress
It puts；
The workbench pedestal includes beam column 2, L-type crossbeam 7, longeron 11, rectangular-shaped top plate 6, stair 8, rectangular flat 9；
Beam column 2 is four, and the L-type crossbeam 7 and longeron 11 are respectively two, and two L-type crossbeams, 7, two longerons 11 are put down respectively
Row is arranged on sub 2 middle and upper parts of beam column, is fixedly connected with two adjacent beam column；Rectangular longitudinal beam 11 plays the role of firm beam column, L
Type crossbeam 7 is used to support rectangular flat 9, and the rectangular flat 9 is less than 7 length of L-type crossbeam, the rectangular-shaped top plate along its length
6 are supported by beam column 2, and every beam column 2 supports an angle of rectangular-shaped top plate 6；8 top of stair is fixed in a welding manner
In in rectangular platform 9, lower part is fixed on ground, for the observation of debris flow body preparation process and the repair of instrument, the beam
Pillar 2, L-type crossbeam 7, longeron 11, rectangular platform 6, rectangular platform 9 are stainless steel material, and contact portion connection mode is
Welding；
The material conveyor includes lifting funnel 4, lifting motor 3, conveyer belt 5, fixed funnel 10；The lifting electricity
Machine is fixed in rectangular-shaped top plate 6, and the lifting funnel 4 is connected by steel strand wires with lifting motor 3, and passes through lifting motor 3 just
Lifting funnel can be promoted to and on conveyer belt 5, the fixed funnel 10 is by being fixed on the fixed pulley and biography of tablet 6 by reversion
5 end of band is sent to connect, the material on the conveyer belt 5 is transported by fixed funnel 10 to agitating device, the lifting motor 4,
Conveyer belt 5 is controlled respectively by an independently-powered unit of control panel 1, and the control panel 1 has several power supply units, can
Simultaneously several equipment is controlled to work at the same time, be independent of each other, then control panel 1 can control lifting motor 4 and conveyer belt 5 simultaneously
The material lifted in funnel is transported to conveyer belt 5 by work, lifting motor, conveyer belt 5 by material transportation to fixed funnel 10, then
Agitating device is transported to by fixed funnel 10.
The water supply installation includes water tank 13, water pipe 14, water pump 15, water valve 16；The water tank 13 is fixed on tablet 9
On, the water pipe 14 has 4 ports, and a port is connected with water tank 13, and second port is connected with water pump 15, the 3rd
Port is connected with water valve 16, and the 4th port is connected with agitating device；The water pump 15 is by control panel) one it is independently-powered
Unit controls；When water pump 15 is started to work, the relation of water-aspirator pressure and water flow is found by experiment first, then can control
Water-aspirator pressure conveys quantitative water into agitating device.
Control water method as follows：
It is started to work by control panel control water pump, sets a water-aspirator pressure value, pumped toward agitating device, it is assumed that water pump
Working time t, the water that agitating device is collected have V, then the water flow in the agitating device unit interval is Q=V/t.
The agitating device includes hopper 17, mixer 12, and the hopper 11 is fixed on by large-scale screw on tablet 9,
Mixer 12 is fixed to be controlled with hopper bottom, the mixer 12 by an independently-powered unit of control panel 1.When stirring fills
When putting work, quantitative material and quantitative water can be stirred into the debris flow slurry of experiment specified density.
The slurry conveying device includes mud valve 18, slush pump 19, discharge nozzle 20, telescoping tube 21, semi-circular groove 22, liquid
Compressing cylinder 23, feed pipe 24；There are four port, port one to be connected the discharge nozzle 20 with hopper 17, port two and mud valve 18
Connection, port three are connected with slush pump 19, and port four is connected with the telescoping tube 21,21 other end of telescoping tube and feed pipe
23 connections, the other end of feed pipe 23 is connected with inclined-plane rheological device, wherein the telescoping tube 21 is supported by hydraulic cylinder 23, institute
State hydraulic cylinder 23 and telescoping tube 21 and between be equipped with semi-circular groove 22；The slush pump 19 by control panel 1 an independence
Power supply unit controls, during mud pump work, can by the slurry of hopper 17 it is quantitative be delivered to storage tank 26；If slurry needed for experiment
More than the volume of storage tank, it can control slurry conveying speed after gate opening by adjusting pump speed, make the mud in storage tank
Slurry is always held at elemental height, and until having conveyed slurry volume needed for experiment, slush pump is just stopped.
Fig. 5 shows a kind of structure of telescoping tube 21 in mud-rock flow yield stress detection device, and telescoping tube 21 can be according to oblique
Face rheological device bottom plate heights carry out length change, and the telescoping tube 21 belongs to hose；I.e.：Regardless of the height of inclined plate, all
By the flexible of itself, debris flow slurry can be delivered to from discharge nozzle 20 in feed pipe 24.
The inclined-plane rheological device includes gate 25, gate lifting system, storage tank 26, flow-through grooves 27, transverse baffle
28th, air-bubble leveling ruler 29, bottom plate jacking system, bottom plate 32, data acquisition board 33, base platform, digital display inclinometer 36；
32 head of bottom plate is supported by bottom plate jacking system, and the bottom plate jacking system is arranged on backplane header both sides,
By jacking system inclined-plane rheological device can be made to reach target tilt angle i, each bottom plate jacking system includes hydraulic jack
30th, circular pipe clamp 301, rubber washer 302, pipe 31；The pipe 31 is solid iron pipe, and one end is welded with 32 stem lateral margin of bottom plate
It connects, the other end is supported by hydraulic jack 30, and circular pipe clamp 301 is equipped between the hydraulic jack 30 and pipe 31, described
Circular pipe clamp 301 is internally provided with rubber washer 302；Air-bubble leveling ruler 29, institute are provided between the both sides bottom plate jacking system
It states air-bubble leveling ruler 29 and is fixed on 32 head top edge of bottom plate, occupy 29 bubble of air-bubble leveling ruler by adjusting both sides jacking system
In；Before testing, inclined-plane rheological device is adjusted to target tilt angle i by raise-lower hydraulic jack 30, in the process of adjusting
In, while ensure that the bubble of the air-bubble leveling ruler 29 between bottom plate jacking system is placed in the middle.
Fig. 8 shows a kind of mud-rock flow yield stress detection device bottom plate jacking system structure, and circular pipe clamp 301 is adjusted
The screw of itself clamps pipe 31, in order to prevent in lifting process pipe slip, set between circular pipe clamp 301 and pipe 31
There is rubber washer 302, the lower section of circular pipe clamp 301 is supported by hydraulic jack 30；
32 afterbody of bottom plate is supported by base platform, and the base platform includes air-bubble level 33, levelling foot 34, pedestal
35,32 afterbody of bottom plate is placed on pedestal 35, and the pedestal 35 is equipped with air-bubble level 33, by adjusting levelling foot 34
Length makes air-bubble level placed in the middle.
Referring to shown in Fig. 1, Fig. 4, the storage tank 26 is arranged on 32 central axes of bottom plate, and 26 bottom plate of storage tank is fixed on bottom
Plate top, the storage tank 26 are equipped with slurry outlet, and slurry outlet is symmetrical arranged along bottom plate central axes；The mud of storage tank 26 goes out
Mouth is equipped with gate.
Fig. 6, Fig. 7 show gate lifting system schematic diagram and vertical view in a kind of mud-rock flow yield stress measuring device
Figure, 25 top of gate are equipped with gate lifting system, and the gate lifting system includes lift lever 251, cylinder 252；It is described
Cylinder 252 is controlled by a power supply unit of control panel 1, and the cylinder 252 is located at the top of gate 25, and and lift lever
251 one end connection, the other end of the lift lever are connected with gate 25；Control panel 1 is powered for cylinder 27, by 27 band of cylinder
The raising and lowering of dynamic lift lever 251, opens or closes to discharge and lay in debris flow slurry so as to regulating gate 25.
After gate is opened, mud in storage tank will under the action of gravitional force with faster speed from slurry outlet
It sprays, the slurry to avoid very fast flow velocity can flow out plate face, cause error of test data larger, and it is recessed that sludge outlet is equipped with circulation
Slot 27 can effectively slowly guide the mud of storage tank 26 to data acquisition board 33 from fixed position by self gravitation,
The flow-through grooves 27 include bottom plate and the side plate for being separately fixed at bottom plate both sides, and the side plate afterbody is vertical with transverse baffle 28
Connection；Transverse baffle 28 effectively prevents exit mud reverse flow, and the bottom plate of the flow-through grooves 27 is fixed on bottom plate 32
On, and be seamlessly connected with data acquisition board 33, the data acquisition board 33 is parallel to be fixed on bottom plate 32；27 sum number of flow-through grooves
Pave-load layer is equipped with according to 33 upper surface of collection plate, the pave-load layer is same material, is occurred for analogue simulation mud-rock flow
The roughness of ground surface on ground, the digital display horizontal inclinometer 36 are placed in data acquisition board 33, and the jacking system work of collaboration bottom plate makes
Inclined-plane rheological device reaches object of experiment angle of inclination i.
The yield stress measurement display device includes：Running gear, infrared ambulator group, infrared ambulator folder
Tool, DATA REASONING display device 43；
The running gear includes beam column 37, guide rail 38, walking mechanism 39, lightweight pipe 40；Referring to Fig. 4, Fig. 9, Figure 10
Shown, the beam column 37 has four, every beam column 37 opens up rectangle sliding slot, and be respectively arranged at data acquisition along its length
33 4 corner points of plate, are vertically fixed on bottom plate 32.Guide rail is used along between adjacent two beam column 37 on 27 direction of flow-through grooves
38 connections, 38 both ends of guide rail are arranged among 37 rectangle sliding slot of beam column, are adjusted by the anchor ear 371 being sleeved on beam column 37
With the position of fixed guide rail, make the plane residing for two guide rails 38 parallel to data acquisition board 33, and guide rail both ends are with the addition of magnetism
Material.
There are two the walking mechanisms 39, is respectively mounted magnetic sensor, and is respectively arranged on two guide rails 38, can be in guide rail
Move back and forth on 38.Figure 11 shows the walking mechanism schematic diagram in a kind of mud-rock flow yield stress measuring device, the walking
Mechanism 39 include dynamical system, dead electricity type electromagnet 391, spring 392, wheel 393, suspension 394, drive shaft 395, axle 396,
Battery pack 399；The suspension 394 is connected with axle 396, and suspension 394 is internally provided with dynamical system, battery pack 399, the battery
Group 399 is powered for dynamical system and dead electricity type electromagnet 391, and the dynamical system includes motor 397, retarder 398, power
System is engaged by gear with the gear of the drive shaft 395 inside the axle 396, and the wheel 393 is connected by drive shaft 395
It connects, the dead electricity type electromagnet 391 is arranged at 394 lower section of suspension, passes through spring between dead electricity type electromagnet 391 and suspension 394
392 connections；Under electric power thus supplied, dead electricity type battery iron 391 can be along guide rail under dynamical system driving without magnetism, walking mechanism
38 move back and forth；Under powering-off state, dynamical system is stopped, and dead electricity type electromagnet has very strong magnetism, holds rapidly
Guide rail makes walking mechanism 39 be fixed on guide rail, will not slide downward under gravity.
It is connected between two walking mechanism 39 with lightweight pipe 40, the lightweight pipe 40 is used to carry infrared distance measuring
Instrument group, the rangefinder group include infrared ambulator I 41 and infrared ambulator II 411；As shown in Figure 1 and Figure 2, mud-rock flow
Slurry is symmetrically accumulated after the outflow of L-type groove along 33 central axes of data acquisition board, accumulation form class parabolic type, data acquisition board
Edge is without deposit；Infrared ambulator I 41 is fixed on above 33 central axes of data acquisition board, in the traction of walking mechanism 39
Under, infrared light beam circuit 1 (central axes) constant speed along in data acquisition board is walked, and measurement infrared ambulator I 41 is adopted to data
Collect the distance h of 33 central axes of plate1；Infrared ambulator II 411 is fixed on data acquisition board end, and infrared light beam is adopted along data
Collect 2 constant speed of circuit walking on plate, measurement infrared ambulator II 411 arrives the distance h at 33 edge of data acquisition board2, circuit 2 selects
Object area is accumulated in no debris flow slurry, therefore mud-rock flow at 33 central axes of data acquisition board can then be calculated by the difference of the two
The thickness h of accumulation body.
Infrared ambulator fixture is equipped between infrared ambulator group and lightweight pipe 40, it is as shown in figure 12, described red
It is interior equipped with anti-skid washer 423 and the buckle-type stent being fixed on circular card slot that outer wire holder includes circular card slot 421, card slot
422, circular card slot 421 is fixed on lightweight pipe 40, and the infrared ambulator group is placed on the buckle-type stent 422,
Before walking mechanism start-up operation, the infrared ray that adjusts infrared ambulator group by rotating circular card slot 422 first and send
For speed perpendicular to data acquisition board 33, make that rangefinder group gathers is rangefinder to the vertical range to data acquisition board, reduction number
According to Acquisition Error.
As shown in Figure 13, Figure 14, the DATA REASONING display device 43 includes control device 431, detection device 432, note
Recording device 433, display device 434.The detection device 432 is connected with infrared ambulator group, infrared for gathering and handling
The data h of line rangefinder group1、h2；The recording device 433 is connected with detection device 432, for store measurement data and to survey
Amount data do time t calibration；The control device 431 respectively with detection device 432, recording device 433, display device 434, row
It walks mechanism 39 to connect, the data that monitoring detection device 432 gathers in real time of control device 431, judges the data h of acquisition1、h2Whether
It is equal, work as h1≠h2When, i.e. the light beam of infrared ambulator I 41 runs to accumulation body edge o points, control device control record dress
It puts 432 data for starting preservation and the acquisition of processing detection device 432 and does time t calibration.The walking mechanism 39 is filled in control
It puts under 431 controls, realizes that battery pack is powered and powered off to walking mechanism and controls 397 constant speed rotating of motor, thus it is controllable
Walking mechanism 39 processed along guide rail with the at the uniform velocity front and rear walkings of speed v, and when walking mechanism runs to rail end, rail end
Magnetic material causes magnetic sensor in walking mechanism 39 to work.Magnetic sensor sends control information to control device, control
Device, which receives, to be stopped after information battery-powered, then walking mechanism is stopped, and dead electricity type electromagnet embraces guide rail at once, keeps away
Exempt from walking mechanism to glide under self gravitation effect.
Referring to shown in Fig. 1, Fig. 2, a kind of measuring method of mud-rock flow yield stress detection device includes the following steps：
Step 1, the levelling foot for adjusting base platform, make air-bubble level bubble placed in the middle, by pedestal modulation level；Adjust bottom
Plate jacking system makes the data acquisition board 33 on bottom plate 32 reach target tilt angle i, and keeps the bubble level on bottom plate 32
29 bubble of ruler is placed in the middle；
Step 2, the pressure value for setting water pump 15, it is quantitative to be pumped toward agitating device, while lift funnel 4 and lifting motor 3
Connection, and passes through 3 rotating of lifting motor, can will lifting funnel be promoted to on conveyer belt 5, conveyer belt 5 by material transportation extremely
Fixed funnel 10, then agitating device is transported to by fixed funnel 10；
Quantitative material and quantitative water are stirred into the debris flow slurry of experiment specified density by step 3, agitating device, so
The debris flow slurry after stirring is delivered in the storage tank 26 of inclined-plane rheological device by slurry conveying device afterwards, regulating gate
Lifting device lift gate 25 discharges debris flow slurry, and debris flow slurry is flowed to by flow-through grooves 27 in data acquisition board 33；
After slurry in step 4, pending data collection plate 33 stops flowing, control device 431 controls walking mechanism 39 from number
It is walked according to the afterbody of collection plate 33 along guide rail 38 with speed v, and monitors 432 measurement data of detection device in real time；
Step 5, control device 431 judge h1Whether h is equal to2, work as h1=h2When, step 4 is continued to execute, works as h1≠h2When,
Perform step 6；
Step 6, control device 431 control recording device 433 to store measurement data and do time calibrating to measurement data, i.e.,
Storage time t-h1(h2) curve, control device 431 is according to time t, v, h1、h2Can the place of calculating go out on range data collection plate 33
Deposit edge x at ulking thickness be h；
Dynamic yield stress τ is calculated according to x and h in step 7, control device 431y, will finally be bent by control device 431
Take the display screen display that stress value is transferred to display device 434.
Described is calculated dynamic yield stress τ according to x and hyCalculation formula be:
Wherein, ρ --- material density, unit kgm-3, g --- acceleration of gravity, unit N/kg, value takes
9.81N/kg；I is the angle of inclination of data acquisition board 33, and unit is degree.
In view of the prior art is measuring the defects of mud-rock flow dynamic yield stress, it is to realize to starch big particle mud-rock flow
The test of body yield stress, and ensure the accuracy of measurement, present invention offer one kind is at low cost, measurement result is accurate, is easy to grasp
The mud-rock flow yield stress measuring device and method of work, data which can predict for mud-rock flow and prevention provides the foundation.
The specific embodiment of the present invention is explained in detail above in association with attached drawing, but the present invention is not limited to above-mentioned
Embodiment, within the knowledge of a person skilled in the art, can also be before present inventive concept not be departed from
Put that various changes can be made.
Claims (7)
1. a kind of mud-rock flow yield stress measuring device, it is characterised in that：Including workbench pedestal, material conveyor, water supply
Device, agitating device, control panel (1), slurry conveying device, inclined-plane rheological device, yield stress measurement display device；
The workbench pedestal includes beam column (2), L-type crossbeam (7), longeron (11), rectangular-shaped top plate (6), inclined ladder (8), rectangle
Tablet (9)；The beam column (2) is four, and the L-type crossbeam (7) and longeron (11) they are respectively two, two L-type crossbeams (7),
Two longerons (11) are arranged in parallel in the middle and upper part of beam column (2) respectively, are fixedly connected with two adjacent beam column；Rectangular longitudinal beam
(11) firm beam column is played the role of, L-type crossbeam (7) is used to support rectangular flat (9), and the rectangular flat (9) is along length side
To less than L-type crossbeam (7) length, the tablet (6) is supported by beam column (2), every beam column (2) support rectangular-shaped top plate (6)
An angle, stair (8) top is fixed on rectangular flat (9), and lower part is fixed on ground；
The material conveyor includes lifting funnel (4), lifting motor (3), conveyer belt (5), fixed funnel (10)；The liter
Drop motor (3) is fixed in rectangular-shaped top plate (6), and the lifting funnel (4) is connected with lifting motor (3), and passes through lifting motor
(3) rotating, can will lifting funnel be promoted to conveyer belt (5) on, the fixed funnel (10) is by being fixed on rectangular-shaped top plate
(6) fixed pulley is connected with conveyer belt (5) end, and the material on the conveyer belt (5) is transported by fixed funnel (10) to stirring
Mix device；Lifting motor (3), conveyer belt (5) are connected respectively by electric wire with the independently-powered unit of control panel (1), described
Control panel (1) is fixed on the longeron (11), and it has several power supply units, and each power supply unit works independently, mutually not
It influences；
The water supply installation includes water tank (13), water pipe (14), water pump (15), water valve (16)；The water tank (13) is fixed
In on rectangular flat (9), the water pipe (14) has 4 ports, and a port is connected with water tank (13), second port with
Water pump (15) connects, and the 3rd port is connected with water valve (16), and the 4th port is connected with agitating device；The water pump (15) is logical
Electric wire is crossed to be connected with an independently-powered unit of control panel (1)；
The agitating device includes hopper (17), mixer (12), and the hopper (17) is fixed on rectangular flat (9), stirs
Machine (12) is fixed with hopper (17) bottom, and the power supply unit that the mixer (12) passes through electric wire and control panel (1) connects
It connects；
The slurry conveying device includes mud valve (18), slush pump (19), discharge nozzle (20), telescoping tube (21), semicircle
Slot (22), hydraulic cylinder (23), feed pipe (24)；There are four port, port one to be connected the discharge nozzle (20) with hopper (17),
Port two is connected with mud valve (18), and port three is connected with slush pump (19), and port four is connected with the telescoping tube (21), described
Telescoping tube (21) other end is connected with feed pipe (24), and the other end of feed pipe (24) is connected with inclined-plane rheological device, wherein institute
It states telescoping tube (21) to be supported by hydraulic cylinder (23), semi-circular groove is equipped between the hydraulic cylinder (23) and telescoping tube (21)
(22)；
The inclined-plane rheological device includes gate (25), gate lifting system, storage tank (26), flow-through grooves (27), transverse gear
Plate (28), air-bubble leveling ruler (29), bottom plate jacking system, bottom plate (32), data acquisition board (33), base platform, digital display inclination angle
Instrument (36)；
Bottom plate (32) head is supported by two bottom plate jacking systems, and described two bottom plate jacking systems are arranged on bottom plate head
Portion both sides can make inclined-plane rheological device reach target tilt angle i by jacking system, and each bottom plate jacking system includes hydraulic pressure
Jack (30), circular pipe clamp (301), rubber washer (302), pipe (31), described pipe (31) one end are first with bottom plate (32)
Portion lateral margin connects, and the other end is supported by hydraulic jack (30), and circle is equipped between the hydraulic jack (30) and pipe (31)
Shape pipe clamp (301), the circle pipe clamp (301) are internally provided with rubber washer (302)；It is set between the both sides bottom plate jacking system
Air-bubble leveling ruler (29) is equipped with, the air-bubble leveling ruler (29) is fixed on bottom plate (32) head top edge, by adjusting both sides liter
Drop system makes air-bubble leveling ruler (29) bubble placed in the middle；
Bottom plate (32) afterbody is supported by base platform, and the base platform includes air-bubble level (33), levelling foot (34), pedestal
(35), bottom plate (32) afterbody is placed on pedestal (35), and the pedestal (35) is equipped with air-bubble level (33), passes through adjusting
The length of levelling foot (34) makes air-bubble level placed in the middle.
The storage tank (26) is arranged on bottom plate (32) central axes, and storage tank (26) bottom plate is fixed on bottom plate (32) head, described
Storage tank (26) is equipped with slurry outlet, and the gate (25) is arranged on slurry outlet, and gate is equipped with above gate (25) and is promoted
System, the gate lifting system include lift lever (251), cylinder (252)；The cylinder (252) passes through electric wire and control plane
Plate (1) connects, and the cylinder (252) is located at the top of gate (25), and is connected with one end of lift lever (251), the promotion
The other end of bar (251) is connected with gate (25)；
The flow-through grooves (27) connect with the slurry outlet of storage tank (26), and the flow-through grooves (27) include bottom plate and difference
It is fixed on the side plate of bottom plate both sides, the side plate afterbody and transverse baffle (28) vertical connection；The bottom of the flow-through grooves (27)
Plate is fixed on bottom plate (32), and is seamlessly connected with data acquisition board (33), and the data acquisition board (33) is fixed on bottom plate
(32) on；Flow-through grooves (27) and data acquisition board (33) upper surface, which are equipped with, changes flow-through grooves (27) and data acquisition board
(33) the free material layer of roughness, the digital display horizontal inclinometer (36) is placed in data acquisition board (33) edge, for measuring
The angle of inclination i of inclined-plane rheological device；
The yield stress measurement display device includes：Running gear, infrared ambulator group, infrared ambulator fixture, number
According to measurement display device (43)；
The running gear includes concave beam column (37), guide rail (38), walking mechanism (39), lightweight pipe (40)；The beam column
(37) there are four, every beam column (37) opens up rectangle sliding slot, and be respectively arranged at data acquisition board (33) four along its length
A corner point is vertically fixed on bottom plate (32), and guide rail is used along between adjacent two beam column (37) on flow-through grooves (27) direction
(38) connect, guide rail (38) both ends are arranged among beam column (37) rectangle sliding slot, and are magnetic built in guide rail (38) both ends
Material, the position for adjusting by being sleeved on the anchor ear on beam column (37) and fixing guide rail equal the plane residing for two guide rails (38)
Row is in data acquisition board (33)；
There are two the walking mechanisms (39), is respectively mounted magnetic sensor, is respectively placed on two guide rails (38), can be in guide rail (38)
On move back and forth, the walking mechanism (39) include dynamical system, dead electricity type electromagnet (391), spring (392), wheel
(393), suspension (394), drive shaft (395), axle (396), battery pack (399)；The suspension (394) connects with axle (396)
It connects, suspension (394) is internally provided with dynamical system, battery pack (399), and the battery pack (399) is dynamical system and dead electricity type electricity
Magnet (391) power, the dynamical system include motor (397), retarder (398), dynamical system by gear with it is described
The gear engagement of the internal drive shaft (395) of axle (396), the wheel (393) are connected by drive shaft (395), the mistake
Electric type electromagnet (391) is arranged at below suspension (394), passes through spring between dead electricity type electromagnet (391) and suspension (394)
(392) connect, in energization, dead electricity type electromagnet (391) is without magnetism, and during power-off, dead electricity type electromagnet has magnetism,
Guide rail can be held rapidly, when avoiding the walking mechanism (39) from being stopped, glided under self gravitation effect；
It is connected between two walking mechanism (39) with lightweight pipe (40), the lightweight pipe (40) is used to multiply borne infrared survey
Distance meter group, the rangefinder group include infrared ambulator I (41) and infrared ambulator II (411), infrared ambulator I
(41) it is fixed on above data acquisition board (33) central axes, for measuring infrared ambulator I (41) to data acquisition board (33)
Distance h at central axes1, infrared ambulator II (411) is placed in the end of lightweight pipe, for measuring infrared ambulator II
(411) the distance h at data acquisition board (33) edge is arrived2If in the case of there is no accumulation body at data acquisition board central axes, h1=
h2；Otherwise, thickness h=h of deposit at data acquisition board (33) central axes can be calculated by the difference of the two1-h2；It is red
Infrared ambulator fixture is equipped between outside line rangefinder group and lightweight pipe (40), the infrared wire holder includes circular card slot
(421), equipped with anti-skid washer (423) and the buckle-type stent (422) being fixed on circular card slot, circular card slot in card slot
(421) it is fixed on lightweight pipe (40), places the infrared ambulator group on the buckle-type stent (422), pass through circle
Shape card slot (422) rotates on lightweight pipe (40) so that the infrared ray light velocity that infrared ambulator group is sent is adopted perpendicular to data
Collect plate (33)；
The DATA REASONING display device (43) includes control device (431), detection device (432), recording device (433), shows
Showing device (434)；The detection device (432) is connected with infrared ambulator group by data cable, red for gathering and handling
The data h of outside line rangefinder group1、h2；The recording device (433) is connected with detection device (432), for storing measurement data
And time calibrating is done to measurement data；The control device (431) respectively with detection device (432), recording device (433), aobvious
Showing device (434), walking mechanism (39) connection, and control device (431) are used to monitor the measurement data in real time, described in judgement
Data h1、h2It is whether equal, and in h1≠h2When, the recording device (432) is controlled to preserve the measurement data and does time mark
It is fixed；The walking mechanism (39), can be along the at the uniform velocity front and rear walking of guide rail (38) under the control of control device (431), and works as walking
When mechanism (39) runs to guide rail (38) end, the magnetic material of guide rail (38) end causes magnetic transducing in walking mechanism (39)
Device works, and magnetic sensor sends control information to control device (431), and control device (431) stops electricity after receiving information
Pond group (399) is powered, then walking mechanism (39) is stopped, and dead electricity type electromagnet (391) embraces guide rail (38) at once, avoids going
Mechanism (39) is walked to glide under self gravitation effect.
2. a kind of mud-rock flow yield stress measuring device according to claim 1, it is characterised in that：The stair (8)
Top is fixed in a welding manner on rectangular flat (9).
3. a kind of mud-rock flow yield stress measuring device according to claim 1, it is characterised in that：The lifting funnel
(4) it is connected by steel strand wires with lifting motor (3).
4. a kind of mud-rock flow yield stress measuring device according to claim 1, it is characterised in that：The hopper (17)
It is fixed on by large-scale screw on rectangular flat (9).
5. a kind of mud-rock flow yield stress measuring device according to claim 1, it is characterised in that：The pipe (31)
It is welded with bottom plate (32) stem lateral margin one end.
6. a kind of measuring method of mud-rock flow yield stress detection device, it is characterised in that：Include the following steps：
Step 1, the levelling foot for adjusting base platform, make air-bubble level bubble placed in the middle, by pedestal modulation level；Regulating base board liter
Drop system makes the data acquisition board (33) on bottom plate (32) reach target tilt angle i, and keeps the air-bubble on bottom plate (32)
Leveling ruler (29) bubble is placed in the middle；
The pressure value of step 2, setting water pump (15), it is quantitative to be pumped toward agitating device, while lift funnel (4) and lifting motor
(3) connect, and pass through lifting motor (3) rotating, lifting funnel can be promoted to and on conveyer belt (5), conveyer belt (5) is by object
Material transport is transported to agitating device to fixed funnel (10), then by fixed funnel (10)；
Quantitative material and quantitative water are stirred into the debris flow slurry of experiment specified density, Ran Houtong by step 3, agitating device
It crosses slurry conveying device to be delivered to the debris flow slurry after stirring in the storage tank (26) of inclined-plane rheological device, regulating gate carries
It rises device lift gate (25) and discharges debris flow slurry, debris flow slurry flows to data acquisition board (33) by flow-through grooves (27)
On；
After slurry in step 4, pending data collection plate (33) stops flowing, control device (431) control walking mechanism (39) from
The afterbody of data acquisition board (33) is walked along guide rail (38) with speed v, and monitors detection device (432) measurement data in real time；
Step 5, control device (431) judge h1Whether h is equal to2, work as h1=h2When, step 4 is continued to execute, works as h1≠h2When, it holds
Row step 6；
Step 6, control device (431) control recording device (433) store measurement data and time t calibration are done to measurement data,
That is storage time t-h1(h2) curve, control device (431) is according to time t, v, h1、h2Can the place of calculating go out range data collection plate
(33) ulking thickness at deposit edge x on is h；
Dynamic yield stress τ is calculated according to x and h in step 7, control device (431)y, will finally be bent by control device (431)
Take the display screen display that stress value is transferred to display device (434).
7. a kind of measuring method of mud-rock flow yield stress detection device according to claim 6, it is characterised in that：
Described is calculated dynamic yield stress τ according to x and hyCalculation formula be:
Wherein, ρ --- material density, unit kgm-3, g --- acceleration of gravity, unit N/kg, value takes 9.81N/
kg；I is the angle of inclination of data acquisition board (33), and unit is degree.
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| CN109001437A (en) * | 2018-09-22 | 2018-12-14 | 浙江大学 | A kind of mud-rock flow experimental provision suitable for high Elevated Gravity |
| CN109297441A (en) * | 2018-11-29 | 2019-02-01 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of device and method thereof of dynamic measurement Debris Flow Deposition thickness |
| CN109991393A (en) * | 2019-04-29 | 2019-07-09 | 西南交通大学 | A kind of Pneumatic acceleration inclined plate experimental provision for high-speed shadowgraph technique simulation |
| CN113125306A (en) * | 2021-05-19 | 2021-07-16 | 安徽理工大学 | Paste filling material angle-variable self-sliding experimental device and using method thereof |
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| CN109991393A (en) * | 2019-04-29 | 2019-07-09 | 西南交通大学 | A kind of Pneumatic acceleration inclined plate experimental provision for high-speed shadowgraph technique simulation |
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| CN113125306A (en) * | 2021-05-19 | 2021-07-16 | 安徽理工大学 | Paste filling material angle-variable self-sliding experimental device and using method thereof |
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