CN208283248U - A kind of device of simulation landslide interface friction effect - Google Patents
A kind of device of simulation landslide interface friction effect Download PDFInfo
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- CN208283248U CN208283248U CN201821031515.8U CN201821031515U CN208283248U CN 208283248 U CN208283248 U CN 208283248U CN 201821031515 U CN201821031515 U CN 201821031515U CN 208283248 U CN208283248 U CN 208283248U
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- shell
- friction effect
- lower shell
- interface friction
- plate
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a kind of device of simulation landslide interface friction effect, it is related to side slope, landslide engineering analogue technique field, it includes lower shell and the upper shell that is stacked in above lower shell, one end that lower shell is contacted with upper shell is provided with ring groove, circle convex platform corresponding with ring groove is provided on upper shell, it is filled out in ring groove equipped with the first soil layer, the second soil layer is fixedly installed on the end face of circle convex platform.Upper shell is connected on force application apparatus by upper bed-plate, and upper bed-plate and force application apparatus contact position are provided with pressure sensor.Lower shell is rotated by motor driven, and torque sensor is connected between lower shell and motor.Solve the problems, such as that the simulation test device of Study of Landslides interface friction effect in the prior art is jejune.
Description
Technical field
The utility model relates to side slopes, landslide engineering analogue technique field, rub more particularly to a kind of simulation landslide interface
Wipe the device of effect.
Background technique
During major landslip, the friction effect between sliding surface has a direct impact the motion process of gliding mass.If sliding surface
Between frictional force it is big, then have larger inhibition to gliding mass, gliding mass skidding distance may be very short, and speed is small, and destructive power is also little；Instead
It, if frictional force is small between sliding surface, then gliding mass possible speed is larger, sliding distance is remote, and destructive power is also big.
Friction effect is influenced by factors between sliding surface, including method between rock soil mass types, soil body physico-mechanical properties, sliding surface
The factors such as Xiang Li, frictional force, hole water effect.There is complicated frictional interface effect between sliding surface.In order to understand between sliding surface
Complicated interface effect, most efficient method is model test at present.And at present about discussion major landslip interface friction effect
Test method and experimental rig are also immature, cannot effectively simulate normal force in sliding process between gliding mass and bedding and
The problems such as evolution process of sliding surface frictional force.
Utility model content
For the above problem in the prior art, the utility model provides a kind of dress of simulation landslide interface friction effect
It sets, solves the problems, such as that the simulation test device of Study of Landslides interface friction effect in the prior art is jejune.
In order to achieve the above object of the invention, the technical solution adopted in the utility model is as follows:
There is provided it is a kind of simulation landslide interface friction effect device comprising lower shell and be stacked in it is upper above lower shell
Cylinder is provided with ring groove in one end that lower shell is contacted with upper shell, is provided on upper shell corresponding with ring groove
Circle convex platform.Upper shell is connected on force application apparatus by upper bed-plate, and upper bed-plate and force application apparatus contact position are provided with pressure
Sensor.Lower shell is rotated by motor driven, and torque sensor is connected between lower shell and motor.
Further, it is filled out in ring groove equipped with the first soil layer, is fixedly installed second on the end face of circle convex platform
Soil layer.
Further, upper bed-plate is solid disk, is provided with through the several corresponding with force application apparatus of its thickness
Mounting hole.
Further, upper shell is connected on upper bed-plate by upper fixture, and upper fixture includes the upper method connecting with upper bed-plate
Blue disk and the upper bar blocks being fixed on upper flange plate are provided with perforative upper U-type groove along its length in upper bar blocks,
The top of upper shell is provided with the upper shell boss connecting with upper U-type groove interference.
Further, torque sensor one end is connect with motor coaxle, and the other end is connected to lower shell bottom by lower fixture
End.
Further, lower fixture includes the lower flange connecting with shaft coupling and the lower bar shaped be fixed on lower flange
Block is provided with perforative lower U-type groove along its length in lower bar blocks, and the bottom end of lower shell is provided with and lower U-type groove interference
The lower shell boss of connection.
Further, the model BF801M-B of pressure sensor.
Further, torque sensor is dynamic torque sensor.
The utility model has the following beneficial effects: by the way that the soil sample of two soil layers of acquisition is individually fixed in upper and lower cylinder
On, it is then simulated by the mutual rotation between upper and lower cylinder mutually sliding between soil layer in the case of coming down in nature
Dynamic process, structure is simple, processing and manufacturing is easy, and saves experimentation cost.
Normal pressure, torque and rotary speed information that the first soil layer is subject to are acquired by using existing sensors, thus
Achieve the purpose that the frictional force and coefficient of friction size of studying soil layer, the information of at low cost and technology maturation, acquisition are reliable.
It can be simulated between different soil under the conditions of different landslide sizes, different sliding speeds by the test of the present apparatus
Landslide interface friction effect, come reach research various soil mass occur Landslide Hazards feature, can also judge to slide
Damage effect distance and the extent of injury behind slope reduce the life and property loss of people so as to be preventive from possible trouble.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the device of simulation landslide interface friction effect.
Fig. 2 is the diagrammatic cross-section of upper shell and lower shell contact position in Fig. 1.
Wherein, 1, lower shell；11, ring groove；12, the first soil layer；14, lower fixture；141, lower flange；142, lower item
Shape block；143, lower U-type groove；15, lower shell boss；2, upper shell；21, circle convex platform；22, the second soil layer；23, upper bed-plate；24,
Upper fixture；241, upper flange plate；242, upper bar blocks；243, upper U-type groove；25, upper shell boss；3, pressure sensor；4, it turns round
Square sensor, 5, motor；6, shaft coupling.
Specific embodiment
Specific embodiment of the present utility model is described below, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all utilize the innovation and creation of the utility model design in the column of protection.
As shown in Figure 1 and Figure 2, the device of simulation landslide interface friction effect includes lower shell 1 and is stacked in lower shell 1
The upper shell 2 of top is provided with ring groove 11 in one end that lower shell 1 is contacted with upper shell 2, be provided on upper shell 2 with
The corresponding circle convex platform 21 of ring groove 11, is filled out in ring groove 11 equipped with the first soil layer 12, in the end face of circle convex platform 21
On be bonded with the second soil layer 22.
First soil layer 12 and the second soil layer 22 respectively correspond need test, be derived from easily occur slide strip lower layer and on
Layer soil sample.When upper shell 2 is Chong Die with lower shell 1, circle convex platform 21 is caught in ring groove 11, so that the second soil layer 22 and first
Soil layer is in close contact.
The top of upper shell 2 is provided with the upper shell boss 25 of a bar shaped, which is connected in folder
In the upper U-type groove 243 of tool 24, upper U-type groove 243 is set in bar blocks 242, and upper bar blocks 242 are embedded in upper flange plate 241
In and by being welded and fixed, be uniformly distributed with 4 bolts hole connecting with upper bed-plate 23 on upper flange plate 241 along the circumference.Upper bed-plate 23
For a solid disk, the center portion thereof position is fixed with the pressure sensor 3 of model BF801M-B.
Force application apparatus is pressure testing machine, and the pressure head of pressure testing machine is pressed on upper bed-plate 23, and pressure sensor 3 will measure
Pressure value be output to display equipment on for experimenter read.
The bottom end of lower shell 1 is provided with the lower shell boss 15 of a bar shaped, and 15 interference of lower shell boss is connected in lower fixture
In lower U-type groove 143 on 14, lower U-type groove 143 is set in lower bar blocks 142, and lower bar blocks 142 are embedded in lower flange 141
In and by being welded and fixed, be uniformly distributed with 4 bolts hole on lower flange 141 along the circumference.
Torque sensor 4 selects the flanged dynamic torque sensor of vertically-mounted list, model HCNJ-101.It should
The flange of 4 one end of torque sensor of model is bolted connection with lower flange 141, the other end by shaft coupling 6 with
The output shaft of motor 5 is coaxially connected.Torque sensor 4, which can either measure 5 output torque of motor also, can measure the output turn of motor 5
Speed, torque and rotary speed parameter are transferred in display equipment by signal output line and are shown.
The principle of friction effect between soil layer is tested by the present apparatus: pressure testing machine presses to upper shell 2, passes through pressure
The pressure value that sensor 3 measures is that soil sample is subject to just on the first soil layer 12 plus the self weight of upper shell 2 and its above equipment
Pressure；Upper shell 2 from it is static to steady turn during torque be equal to the mean kinetic friction force tested soil layer multiplied by
The mean radius of ring groove 11, the torque value measured by torque sensor 4 (i.e. torque) can acquire the first soil layer 12 and
Mean kinetic friction force between two soil layers 22；Since the mean kinetic friction force is equal to the product of dynamic friction coefficient and normal pressure, from
And acquire the dynamic friction coefficient of soil sample in test；It keeps the exerted a force size of pressure testing machine constant, changes the revolving speed of motor 5, from
And reach the size of change output torque to judge whether frictional force changes, to judge that the mutual movement between soil layer rubs to dynamic
Wipe the influence of force coefficient.
Mutual fortune of the corresponding test soil sample of mutual movement in process of landslides between first soil layer 12 and the second soil layer 22
It is dynamic.The power behavior and mechanism occurred by judging the property of soil sample come Study of Landslides geological disaster, to judge to come down
The possibility extent of injury afterwards.
Similarly, can also be by being deployed to soil sample, such as the soil body of configuration different water cut, to study different water cut
Under the conditions of friction effect between soil layer.It can mould by the rotation speed for changing lower shell or the normal pressure for changing pressure testing machine
Intend coming down under the conditions of different landslide sizes and different sliding speed the friction effect at interface.
Claims (8)
1. a kind of device of simulation landslide interface friction effect, which is characterized in that including lower shell (1) and be stacked in lower shell
(1) upper shell (2) above is provided with ring groove in one end that the lower shell (1) is contacted with the upper shell (2)
(11), circle convex platform (21) corresponding with the ring groove (11) is provided on the upper shell (2)；
The upper shell (2) is connected on force application apparatus by upper bed-plate (23), is connect in the upper bed-plate (23) with force application apparatus
Synapsis is provided with pressure sensor (3)；The lower shell (1) passes through motor (5) driving rotation, the lower shell (1) and motor
(5) torque sensor (4) are connected between.
2. the device of simulation landslide according to claim 1 interface friction effect, which is characterized in that in the ring groove
(11) it is filled out in equipped with the first soil layer (12), the second soil layer (22) is fixedly installed on the end face of the circle convex platform (21).
3. the device of simulation landslide according to claim 1 interface friction effect, which is characterized in that the upper bed-plate (23)
For solid disk, it is provided with the corresponding mounting hole of several and force application apparatus through its thickness.
4. the device of simulation landslide according to claim 3 interface friction effect, which is characterized in that the upper shell (2)
It is connected on the upper bed-plate (23) by upper fixture (24), the upper fixture (24) includes the upper method connecting with upper bed-plate (23)
Blue disk (241) and the upper bar blocks (242) being fixed on upper flange plate (241) are provided with edge on the upper bar blocks (242)
The perforative upper U-type groove (243) of its length direction, the top of the upper shell (2) are provided with and upper U-type groove (243) interference
The upper shell boss (25) of connection.
5. the device of simulation landslide according to claim 1 interface friction effect, which is characterized in that the torque sensor
(4) one end and motor (5) output shaft are coaxially connected, and the other end is connected to lower shell (1) bottom end by lower fixture (14).
6. the device of simulation landslide according to claim 5 interface friction effect, which is characterized in that the lower fixture (14)
Including the lower flange (141) being connect with shaft coupling (6) and the lower bar blocks (142) being fixed on lower flange (141), institute
It states and is provided with perforative lower U-type groove (143) along its length on lower bar blocks (142), the bottom end setting of the lower shell (1)
There is the lower shell boss (15) connecting with lower U-type groove (143) interference.
7. the device of simulation landslide according to claim 1 interface friction effect, which is characterized in that the pressure sensor
(3) model BF801M-B.
8. the device of simulation landslide according to claim 1 interface friction effect, which is characterized in that the torque sensor
It (4) is dynamic torque sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821031515.8U CN208283248U (en) | 2018-07-02 | 2018-07-02 | A kind of device of simulation landslide interface friction effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821031515.8U CN208283248U (en) | 2018-07-02 | 2018-07-02 | A kind of device of simulation landslide interface friction effect |
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| Publication Number | Publication Date |
|---|---|
| CN208283248U true CN208283248U (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821031515.8U Expired - Fee Related CN208283248U (en) | 2018-07-02 | 2018-07-02 | A kind of device of simulation landslide interface friction effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014309A (en) * | 2020-08-18 | 2020-12-01 | 中国地质大学（武汉） | Non-contact adjustment normal stress bottom friction test device for slope model test |
-
2018
- 2018-07-02 CN CN201821031515.8U patent/CN208283248U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014309A (en) * | 2020-08-18 | 2020-12-01 | 中国地质大学（武汉） | Non-contact adjustment normal stress bottom friction test device for slope model test |
| CN112014309B (en) * | 2020-08-18 | 2024-05-10 | 中国地质大学（武汉） | Be used for contactless regulation positive stress bottom friction test device of side slope model test |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181225 Termination date: 20200702 |