CN209459864U - A kind of experimental provision for simulating landslide and mud-rock flow applied to geotechnical centrifuge - Google Patents
A kind of experimental provision for simulating landslide and mud-rock flow applied to geotechnical centrifuge Download PDFInfo
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- CN209459864U CN209459864U CN201920482761.3U CN201920482761U CN209459864U CN 209459864 U CN209459864 U CN 209459864U CN 201920482761 U CN201920482761 U CN 201920482761U CN 209459864 U CN209459864 U CN 209459864U
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Abstract
The utility model discloses a kind of experimental provisions for simulating landslide and mud-rock flow applied to geotechnical centrifuge, the driving device of tilt angle including Laboratory Module and for controlling movable sliding, Laboratory Module includes fixed chute, the movable sliding for keeping and discharging landslide and mudstone flow model, and fixed chute and movable sliding are docked.Laboratory Module in the prior art has been divided into fixed chute and movable sliding by the utility model, real-time dynamic regulation can be carried out to the tilt angle of movable sliding by the effect of driving device, convenient for the rule that progress and the grasp landslide of experiment occur, the efficiency of experiment is improved.
Description
Technical field
The utility model belongs to geotechnical centrifuge experimental provision technical field, and in particular to one kind is applied to geotechnique's centrifugation
The simulation landslide of machine and the experimental provision of mud-rock flow.
Background technique
In the natural environment, massif or artificial dam body are influenced to go out by water erosion, geological movement and mankind's activity
Now collapse, slip-stream phenomena such as, to cause the geological disasters such as landslide, mud-rock flow.If such geological disaster occurs in remote districts,
It will cause the transition of natural environment；If occurring in population collections such as engineering construction scene, cities and towns and villages, to will lead to great people
Member and property loss.The machine that the disaster occurs is needed in order to reduce landslide and the loss of mud-stone flow disaster bring, researcher
Reason, process etc. are studied, to improve accuracy, the corresponding prevention of research and the treatment measures of hazard forecasting.Due to real generation
In boundary, slip mass and mud-rock flow bulky are directly carried out for research in kind takes a long time, experimental expenses is huge, dangerous
Property is larger, uncontrollable factor is more.Therefore, in Practical Project field, researcher usually by geotechnical model be mounted on geotechnique from
In scheming, the scale effect generated using geotechnical centrifuge high speed rotation simulates large landslide with the geotechnical model of small volume
The prototype feature of body and mud-rock flow.
In order to construct the landslide body Model and mudstone flow model that meet scale effect, implementation model is on geotechnical centrifuge
Installation, and the corresponding sensor of arrangement carry out data test, and researcher needs to develop (or the experiment of corresponding experimental provision
Cabin).Currently, domestic and international related research institutes, which are based on mold box configuration, has developed debris flows simulation device and landslide simulator,
Such device can be run under 150g centrifuge acceleration, and structure is usually as shown in Figure 1.Slopes model 21 is shown in Fig. 1；
Funnel 22；Model casing tank wall 23；Inclined plate 24；Mudstone flow model 25, the front of model casing is using organic glass (convenient for observing and taking the photograph
Picture), lap is manufactured using light alloy, and inclined plate is installed in cabinet to construct the slope of different angle.When carrying out landslide simulation
When experiment, again by model casing integral installation on geotechnical centrifuge after soil model is fixed on model casing inner swash plate, it can study
(test sensor is mounted on model tank wall or inclined plate to the mechanism that different side slope angles, slopes shape and material etc. come down
On)；When carrying out debris flows simulation experiment, the funnel for installing self-carrying mixing at the top of model casing is needed (to prevent model from existing
Centrifuge speed deposits when not up to requiring), when centrifuge speed reaches requirement of experiment, open hopper valve, release
Mudstone flow model can study its flow behavior etc. in different slopes.
The inclined plate of analog ramp requires just to install before the test (otherwise model can not be installed) in device, and entire
The tilt angle on slope can not be changed during test.Thus, during single test, the difficulty that make slopes come down
It is larger, it generally requires that influence of the ramp angles to specific slip mass, the inefficiency of experiment could be grasped by many experiments.
We has developed a kind of applied to the simulation landslide of geotechnical centrifuge and mud-rock flow in order to solve problem above
Experimental provision.
Summary of the invention
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of mould applied to geotechnical centrifuge
The experimental provision of quasi- landslide and mud-rock flow.
The utility model achieves the above object through the following technical schemes:
A kind of experimental provision for simulating landslide and mud-rock flow applied to geotechnical centrifuge, comprising:
Laboratory Module；Laboratory Module includes fixed chute, the movable sliding for keeping and discharging landslide and mudstone flow model, Gu
Determine sliding slot and movable sliding docking；
For controlling the driving device of the tilt angle of movable sliding.
The utility model has the beneficial effects that:
A kind of simulation applied to geotechnical centrifuge of the utility model is come down and the experimental provision of mud-rock flow, by existing skill
Laboratory Module in art has been divided into fixed chute and movable sliding, can be to the inclination angle of movable sliding by the effect of driving device
Degree (landslide slope angle) carries out real-time dynamic regulation, convenient for the rule of progress and grasp the landslide generation of experiment, improves the effect of experiment
Rate.
Detailed description of the invention
Fig. 1 be in the prior art landslide, debris flows simulation experimental provision structural schematic diagram；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the detail drawing of hydraulic control unit in the utility model；
Fig. 4 is the structural schematic diagram of Laboratory Module in the utility model；
Fig. 5 is the structural schematic diagram of landslide experimental part in the utility model；
Fig. 6 is the structural schematic diagram of mud-rock flow experimental part in the utility model.
In figure: 1- Laboratory Module；2- elevating control oil circuit；3- rotary joint；4- hydraulic control unit；5- water supply pipe；6-
Gate controls oil circuit；7- mixing control oil circuit；8- water supplying unit；9- movable sliding；10- hydraulic cylinder；11- hydraulic cylinder connecting shaft；
12- pin shaft；13- pedestal；14- fixed chute；15- spray equipment；16- baffle；17- hydraulic expanding cover；18- hydraulic motor；19- electricity
Magnet；20- blender；21- slopes model；22- funnel；23- model casing tank wall；24- inclined plate；25- mudstone flow model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
Embodiment 1, as shown in Figure 2 and Figure 4；
A kind of experimental provision for simulating landslide and mud-rock flow applied to geotechnical centrifuge, comprising:
Laboratory Module 1；Laboratory Module 1 is sliding including fixed chute 14, the activity for keeping and discharging landslide and mudstone flow model
Slot 9, fixed chute 14 and movable sliding 9 are docked；
For controlling the driving device of the tilt angle of movable sliding 9.
Driving device in the present embodiment can be electric system, hydraulic system, pneumatic system etc.；Driving device is generally adopted
With the flexible to rise or drag down one end of movable sliding 9 of certain component is controlled, to reach the inclination to movable sliding 9
Angle (landslide slope angle) carries out the purpose of real-time dynamic regulation；
By the combination of fixed chute 14 and movable sliding 9 to form a complete experiment ramp；
Laboratory Module 1 is mounted in the hanging basket of geotechnical centrifuge, certain a part of driving device is also mounted in hanging basket；
Embodiment 2, as shown in Figure 2, Figure 3 and Figure 4；
The present embodiment the difference from embodiment 1 is that: driving device is hydraulic cylinder 10, the piston rod of hydraulic cylinder 10 and activity
One end on sliding slot 9 far from fixed chute 14 is rotatably connected.
In the present embodiment, hydraulic control unit 4, elevating control oil circuit 2 and rotary joint 3, hydraulic control list are also used
Member 4 is mainly made of that (this part is the prior art, is not done herein fuel tank, hydraulic pump, reversal valve, flow control valve, flow divider etc.
Apply and state), hydraulic control unit 4 is connected to hydraulic cylinder 10 through the rotary joint 3 on centrifuge principal axis by elevating control oil circuit 2；
In the present embodiment, hydraulic cylinder connecting shaft 11, pin shaft 12, pedestal 13 are also used, pedestal 13 is mounted on geotechnological centrifugation
In the hanging basket of machine, pedestal 13 is formed as the shape of the mounting height of the cooperation fixed chute 14 of first end protrusion, fixed chute 14
It is mounted on the first end of pedestal 13, free bearing is installed in the second end of pedestal 13, is also installed in 9 bottom of movable sliding hinged
Seat, the cylinder base of hydraulic cylinder 10 are may be rotatably mounted at by trunnion on the free bearing of pedestal 13, and the piston rod of hydraulic cylinder 10 passes through
Pin shaft 12 is rotatably connected with the free bearing in movable sliding 9；
It is preferred that using two hydraulic cylinders 10；It extends and shortens to change activity by two synchronizing for 10 piston rod of hydraulic cylinder
The tilt angle of sliding slot 9, to realize the dynamic regulation of slip mass slope angle；Using twin-tub and the scheme that pushes away, be in order to guarantee from
Stationarity, the anti-centrifugal load ability of raising moved under psychological field, hydraulic cylinder 10 use fiber reinforcement formula plunger case (i.e. in cylinder body
Side is high-strength alloy, and outside is enhanced by composite materials such as carbon fibers), to reduce construction weight, improve piston rod
Rigidity (clamping stagnation due to piston rod deforms under preventing centrifugal force from acting on).
Embodiment 3, as shown in Figure 2 and Figure 4；
The present embodiment the difference from embodiment 1 is that: fixed chute 14 is mounted in the hanging basket of geotechnical centrifuge；
The bottom of fixed chute 14 includes the tilting section being obliquely installed and horizontally disposed horizontal segment, the high bit of tilting section
Rest against nearly movable sliding 9；
The side setting of fixed chute 14 is jagged, and movable sliding 9 protrudes into fixed chute 14 from indentation, there；
The side of fixed chute 14 is made of transparent material.
The side of fixed chute 14 preferably uses transparent organic glass, remaining is manufactured using light-high-strength alloy；
Fixed chute 14 is preferably connected by a pin shaft with movable sliding 9, to guarantee that movable sliding 9 can freely turn
It is dynamic, it also avoids movable sliding 9 and biggish moving range occurs, such as do not use this structure herein, the application can also work, still
It is not to realize that fixed chute 14 is protruded into the lower end of movable sliding 9 always by the centre-of gravity shift of movable sliding 9 in such cases, but not
Can avoid may be because of too fast the case where causing movable sliding 9 to be detached from fixed chute 14 generation of driving speed of driving device.
Preferably, fixed chute 14 is with the contact position setting sealing structure of movable sliding 9 to prevent model from leaking.
Embodiment 4, as shown in Figure 2 and Figure 4；
The present embodiment and the difference of embodiment 3 are: the tilting section width of fixed chute 14 is greater than the width of movable sliding 9
Degree；The horizontal segment width of fixed chute 14 is greater than the tilting section width of fixed chute 14.
The present embodiment solves problem of the prior art: making simulation test device using model casing, width is equal up and down for slopes
Be it is wide, cabinet wall surface can hinder the transverse movement of slip mass, and when actually occurring landslide or mud-rock flow, under slip mass
It swims usually more wider than upstream.Thus, traditional experiment device can not real simulation landslide and mud-rock flow occur after motion conditions,
And then the extent of injury and coverage can not be assessed；
And in the present embodiment come down and mud-rock flow occur after movement simulation process not by or lack by 1 space of Laboratory Module
Constraint reduces the influence to landslide and mud-rock flow flowing, reaches Study of Landslides and mud-rock flow movement rule and grasps and transports downstream
The purpose of dynamic form, has more really reproduced the motion process of landslide and mud-rock flow；
Embodiment 5, as shown in Figure 5；
The difference of the present embodiment and any one of embodiment 1-4 is: when carrying out landslide simulation experimental, movable sliding 9 is wrapped
Include major trough body and landslide experimental part；
Three side seals of major trough body close, side is provided with opening, major trough body be provided with opening one end and fixed chute 14 it is right
It connects, the side of major trough body is made of transparent material；
Landslide experimental part includes the spray equipment 15 for being mounted at the top of major trough body and acting on Landslide Model in major trough body,
Water supplying unit 8 supplies water to spray equipment 15.
Specifically, water supplying unit 8 mainly forms (this part is the prior art, does not do to apply herein and state) by water tank, water pump etc.,
Water supplying unit 8 is by being connected to spray equipment 15 after the included rotary joint 3 of water supply pipe 5, centrifuge, to realize to rainfall
Simulation can also spray the size of water mist by adjusting flow control, to reach the shadow of research rainfall change Slope Stability
Loud purpose；
Preferably, movable sliding 9 is whole is manufactured using light-high-strength alloy, one side use transparent organic glass with
Facilitate observation；
Embodiment 6, as shown in Figure 6；
The difference of the present embodiment and any one of embodiment 1-4 is: when carrying out debris flows simulation experiment, movable sliding 9
Including major trough body and mud-rock flow experimental part；
Three side seals of major trough body close, side is provided with opening, major trough body be provided with opening one end and fixed chute 14 it is right
It connects, the side of major trough body is made of transparent material；
Mud-rock flow experimental part includes blender 20 for being stirred to mudstone flow model in major trough body, for master
The gate that mudstone flow model is kept and discharged in groove body.
Mudstone flow model is directly placed in movable sliding 9 and is discharged compared with traditional funnel, it, more can be true closer to reality
Real reaction actual conditions.
Embodiment 7, as shown in Figure 6；
The present embodiment and the difference of embodiment 6 are: blender 20 is driven by hydraulic motor 18.
Preferably, hydraulic motor 18 is mounted on outside movable sliding 9, and blender 20 is laterally rotatably mounted on movable cunning
Inside slot 9, shaft one end of blender 20 is fixedly connected with the output revolving shaft of hydraulic motor 18.
Hydraulic motor 18 drives blender 20 to be rotated and (can protected by the shape and installation site that change blender 20
The interference to model flow is reduced while demonstrate,proving mixing effect) to guarantee that mudstone flow model will not occur under the influence of centrifugal force
Deposition.
Hydraulic control unit 4 is by mixing control oil circuit 7 through 18 reality of rotary joint 3 and hydraulic motor on centrifuge principal axis
Now control connection.
The present embodiment solves problem of the prior art: when debris flows simulation, needing to be separately configured a funnel, on funnel
Install individual propeller and motor etc. additional.Before centrifuge speed is not up to test requirements document revolving speed, the propeller on funnel needs continuous
It stirs mud (preventing mud from depositing)；When on-test, model is discharged on inclined plate by the valve on funnel, then mud from
It flows to realize the simulation to mud-rock flow along slope under psychological field.And in practice, mud-rock flow is usually whole along motion on a slope, should
Kind analog form greatly differs from each other with actual conditions, and validity is inadequate.
Embodiment 8, as shown in Figure 6；
The present embodiment and the difference of embodiment 6 are: gate include shaft and with the matched baffle of major trough body inside dimension
16, baffle 16 is fixedly connected with the side wall of shaft, and the mounting base rotatably mounted for shaft is provided at the top of major trough body,
One end of shaft is set with a hydraulic expanding cover 17 for shaft whether fixed, and hydraulic expanding cover 17 is fixed on major trough body.
Preferably, sealing joint strip is installed in the contact position of 16 surrounding of baffle and major trough body, to prevent mud-rock flow model from letting out
Leakage；
Specifically, guarantee that centrifugal force effect tail gates will not by the frictional force that shaft of the hydraulic expanding cover 17 to gate applies
It opens by mistake, leak；This is first of release guard of gate；Hydraulic control unit 4 controls oil circuit 6 through centrifuge by gate
Rotary joint 3 and hydraulic expanding cover 17 on main shaft realize control connection.
Embodiment 9, as shown in Figure 6；
The present embodiment and the difference of embodiment 8 are: electromagnet 19 are additionally provided on major trough body, baffle 16 is by ferromagnetism
Material is made；In 16 block mudstone flow model of baffle, electromagnet 19 is for sucking baffle 16.
Baffle 16 guarantees that it is closed in place by the suction-operated of electromagnet 19, is the second release guard of gate；
Two release guards, it is ensured that mudstone flow model can not leak off field in 300G centrifugal acceleration, not deposit, and protect
The authenticity of model is demonstrate,proved.
After hydraulic expanding cover 17 discharges hydraulic oil, electromagnet 19 powers off, gate is automatically turned on and is released under the action of the centrifugal force
Put mudstone flow model.
The structure design of landslide experimental part, mud-rock flow experimental part ensures that landslide, debris flows simulation are real in the application
Experiment device can be used safely off field in 300G centrifugal acceleration.Solves traditional landslide, debris flows simulation experimental rig is base
Improved in model casing, ramp (i.e. inclined plate) is using two fixed so that device bearing capacity is limited, can not be suitable for from
The problem of heart acceleration higher test.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope
It is defined by appending claims and equivalents.
Claims (9)
1. a kind of simulation applied to geotechnical centrifuge is come down and the experimental provision of mud-rock flow characterized by comprising
Laboratory Module；Laboratory Module includes fixed chute, the movable sliding for keeping and discharging landslide and mudstone flow model, fixed cunning
Slot and movable sliding docking；
For controlling the driving device of the tilt angle of movable sliding.
2. a kind of simulation applied to geotechnical centrifuge according to claim 1 is come down and the experimental provision of mud-rock flow,
Be characterized in that: driving device is hydraulic cylinder, and one end far from fixed chute can be rotated on the piston rod and movable sliding of hydraulic cylinder
Connection.
3. a kind of simulation applied to geotechnical centrifuge according to claim 1 is come down and the experimental provision of mud-rock flow,
It is characterized in that:
Fixed chute is mounted in the hanging basket of geotechnical centrifuge；
The bottom of fixed chute includes the tilting section being obliquely installed and horizontally disposed horizontal segment, and the higher position of tilting section is close
Movable sliding；
The side setting of fixed chute is jagged, and movable sliding protrudes into fixed chute from indentation, there；
The side of fixed chute is made of transparent material.
4. a kind of simulation applied to geotechnical centrifuge according to claim 3 is come down and the experimental provision of mud-rock flow,
Be characterized in that: the tilting section width of fixed chute is greater than the width of movable sliding；The horizontal segment width of fixed chute, which is greater than, to be fixed
The tilting section width of sliding slot.
5. a kind of simulation applied to geotechnical centrifuge according to claim 1-4 is come down and the experiment of mud-rock flow
Device, it is characterised in that:
When carrying out landslide simulation experimental, movable sliding includes major trough body and landslide experimental part；
Three side seals of major trough body close, side is provided with opening, and one end that major trough body is provided with opening is docked with fixed chute, major trough
The side of body is made of transparent material；
Landslide experimental part includes the spray equipment for being mounted at the top of major trough body and acting on Landslide Model in major trough body, is supplied water single
Member supplies water to spray equipment.
6. a kind of simulation applied to geotechnical centrifuge according to claim 1-4 is come down and the experiment of mud-rock flow
Device, it is characterised in that:
When carrying out debris flows simulation experiment, movable sliding includes major trough body and mud-rock flow experimental part；
Three side seals of major trough body close, side is provided with opening, and one end that major trough body is provided with opening is docked with fixed chute, major trough
The side of body is made of transparent material；
Mud-rock flow experimental part include for the blender that mudstone flow model is stirred in major trough body, for in major trough body
The gate that mudstone flow model is kept and discharged.
7. a kind of simulation applied to geotechnical centrifuge according to claim 6 is come down and the experimental provision of mud-rock flow,
Be characterized in that: blender is driven by hydraulic motor.
8. a kind of simulation applied to geotechnical centrifuge according to claim 6 is come down and the experimental provision of mud-rock flow,
Be characterized in that: gate include shaft and with the matched baffle of major trough body inside dimension, baffle is fixedly connected with the side wall of shaft,
Be provided with the mounting base rotatably mounted for shaft at the top of major trough body, one end of shaft be set with one for shaft it is fixed with
No hydraulic expanding cover, hydraulic expanding cover are fixed on major trough body.
9. a kind of simulation applied to geotechnical centrifuge according to claim 8 is come down and the experimental provision of mud-rock flow,
It is characterized in that: being additionally provided with electromagnet on major trough body, baffle is made of ferrimagnet；In baffle block mudstone flow model
When, electromagnet is for sucking baffle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920482761.3U CN209459864U (en) | 2019-04-11 | 2019-04-11 | A kind of experimental provision for simulating landslide and mud-rock flow applied to geotechnical centrifuge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827749A (en) * | 2019-04-11 | 2019-05-31 | 中国工程物理研究院总体工程研究所 | A kind of experimental provision for simulating landslide and mud-rock flow applied to geotechnical centrifuge |
| CN111337646A (en) * | 2020-02-24 | 2020-06-26 | 同济大学 | Dam break type mudstone flow dynamics evolution overall process simulation test system |
-
2019
- 2019-04-11 CN CN201920482761.3U patent/CN209459864U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827749A (en) * | 2019-04-11 | 2019-05-31 | 中国工程物理研究院总体工程研究所 | A kind of experimental provision for simulating landslide and mud-rock flow applied to geotechnical centrifuge |
| CN111337646A (en) * | 2020-02-24 | 2020-06-26 | 同济大学 | Dam break type mudstone flow dynamics evolution overall process simulation test system |
| CN111337646B (en) * | 2020-02-24 | 2021-10-08 | 同济大学 | Dam break type mudstone flow dynamics evolution overall process simulation test system |
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