CN113203834B - Landslide surge simulation device - Google Patents
Landslide surge simulation device Download PDFInfo
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- CN113203834B CN113203834B CN202110463582.7A CN202110463582A CN113203834B CN 113203834 B CN113203834 B CN 113203834B CN 202110463582 A CN202110463582 A CN 202110463582A CN 113203834 B CN113203834 B CN 113203834B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a landslide surge simulation device which comprises a slide way, wherein the slide way is formed by splicing a plurality of sections of on-way slide ways, wave height meters are arranged between every two adjacent sections of on-way slide ways, a water inlet device is arranged at the upstream of the slide way, a water outlet device is arranged at the downstream of the slide way, a landslide simulation system is fixed at one side of the upstream of the slide way, a simulated landslide body is placed on the landslide simulation system, the landslide simulation system comprises a height adjusting system, the top of the height adjusting system is connected with a plurality of conveyor belts, the roughness of the surface of each conveyor belt is different, the conveyor belts are connected with a control system, the simulated landslide body comprises a flexible box, a plurality of small balls are arranged in the flexible box, and a signal transmitter is arranged in each small ball. The device can accurately control the inclination angle of the sliding surface, the water entering speed of the sliding body and the sliding sequence of the sliding body, accurately measure the surge height and the propagation distance caused by the landslide, and has the advantages of simple and easy operation, low cost, high test efficiency and high precision.
Description
Technical Field
The invention relates to a simulation device, in particular to a landslide surge simulation device.
Background
The analysis of the movement mechanism of the landslide of the accumulation body is always an important problem to be solved urgently at home and abroad. After the slip zone soil is unsteady and slides along the slip surface, various secondary and derivative disasters can be caused, such as: surge, damming and the like seriously threaten the safety and stability of engineering, and cause greater economic loss. Therefore, the analysis on the movement mechanism of the landslide strip has important significance on engineering safety and disaster prediction and early warning. Generally, the main methods for studying landslide mechanisms include theoretical analysis, model tests, numerical simulation and the like, and physical model tests are one of the most direct research means.
At present, the following defects exist in the existing physical model for simulating the landslide sliding mechanism:
(1) the slope is single, the slope height is fixed, and the slope can not adapt to different types of landslides;
(2) the method of changing the water entering speed of the sliding body by changing the slope angle cannot accurately control the movement form, the sliding sequence and the water entering speed of the sliding body in the sliding process;
(3) the sliding body slides down by the sliding force generated by the dead weight, and when the friction coefficient of the sliding surface is too large, the sliding body often has the problems of non-sliding or incomplete sliding and the like.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a landslide surge simulation device which can accurately control the inclination angle of a sliding surface, the water entering speed of a sliding body and the sliding sequence of the sliding body and accurately measure the surge climbing height and the propagation distance of the landslide.
The technical scheme is as follows: the landslide simulation system comprises a slideway, wherein a water inlet device is arranged at the upstream of the slideway, a water outlet device is arranged at the downstream of the slideway, a landslide simulation system is fixed at one side of the upstream of the slideway, a simulation slide body is placed on the landslide simulation system, the landslide simulation system comprises a height adjusting system, the top of the height adjusting system is connected with a plurality of conveying belts, the roughness of the surface of each conveying belt is different, and the conveying belts are all connected with a control system.
The simulation gliding mass include the flexbile box, the flexbile box in be equipped with a plurality of bobbles, the bobble in be equipped with signal transmitter, the flexbile box adopt hydrophilic resin material to make, this resin material meets water can take place to soften and dissolves in water to the phenomenon that the gliding mass breaks, scatters after the aquatic of sliding into has been simulated.
The slideway is formed by splicing a plurality of sections of on-way slideways, and wave height instruments are arranged between every two adjacent sections of on-way slideways.
The on-way slide is made of organic glass, a height adjusting system is arranged at the bottom of the on-way slide, and the relative positions and slope angles of different slopes are adjusted by the height adjusting system.
The surface of the on-way slide way is provided with a geological slope, and the slope can be obtained by reducing the slope in equal proportion and printing and cementing the slope by adopting a 3D printing technology according to the characteristics of actual geological landform.
The water inlet device and the water outlet device are connected with a return pipe, a water outlet is formed between the water outlet device and the slide way, and the water flows back through the return pipe, so that the requirement of an experimental site is reduced, and the test fluid can be recycled.
And the tail end of the slideway is provided with a pressure sensor and a wave height instrument.
And wave height instruments are arranged at the joint of the slide way and the landslide simulation system and on the slide way of the opposite surface of the landslide simulation system and are used for measuring the first wave height and the climbing height of surge.
The surface of the conveying belt is provided with a plurality of speed sensors, the sliding speed of the sliding body is controlled by changing the rotating speed of the conveying belt, and meanwhile, the local sliding sequence of different positions of the sliding body is controlled by adjusting the sequential rotating sequence of different time periods of the conveying belts, so that the requirements of landslide forms such as a pushing type landslide form and a traction type landslide form are met, and the accurate control of the water inlet speed of the sliding body is ensured.
The height adjusting system comprises a plurality of jacks which are in transmission connection, and the height of the jacks is changed to control the angle and the relative position of the slope surface so as to adapt to landslides with different slide surface types.
Has the advantages that: the device can accurately control the inclination angle of the sliding surface, the water entering speed of the sliding body and the sliding sequence of the sliding body, accurately measure the surge height and the propagation distance caused by the landslide, and has the advantages of simple and easy operation, low cost, high test efficiency and high precision.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a landslide simulation system of the present invention;
FIG. 3 is a schematic representation of the on-the-way slide of the present invention;
FIG. 4 is a schematic illustration of a geological slope according to the present invention;
FIG. 5 is a schematic view of a simulated slider according to the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 5, the landslide simulation system comprises a slide way 3, a water inlet device 2 is arranged at the upstream of the slide way 3, a water outlet device 4 is arranged at the downstream of the slide way 3, a water outlet 41 is arranged between the water outlet device 4 and the slide way 3, a landslide simulation system 1 is fixed at one side of the upstream of the slide way 3, and a simulated landslide body is arranged on the landslide simulation system 1. A return pipe 5 is connected between the water inlet device 2 and the water outlet device 4, the test fluid is pumped and pressurized through a water pump, and then flows back through the return pipe 5, so that the requirement of an experimental site is reduced, and the test fluid can be recycled. Meanwhile, a coloring agent is added into the test fluid, so that the surge height in the surge process can be conveniently measured.
As shown in fig. 2, the landslide simulation system 1 includes a height adjustment system 14, the height adjustment system 14 is formed by connecting a plurality of jacks in a transmission manner, and the height of the jacks is changed to control the angle and the relative position of the slope surface so as to adapt to landslides with different landslide surface types. The top of the height adjusting system 14 is connected with a plurality of conveyor belts 12, the roughness of the surface of each conveyor belt 12 is different, the roughness of the sliding surface is adjusted by adopting conveyor belt surfaces with different roughness, and the problems that the slope of a landslide model is single, the slope height is fixed, the adjustment and the change cannot be performed and the like are solved. Each conveyor belt 12 is connected with a control system, the rotation of each conveyor belt 12 is relatively independent, the sliding speed of the sliding body is controlled by changing the rotation speed of the conveyor belts 12, and meanwhile, the sequence of rotation of each conveyor belt 12 in different time periods is adjusted to control the local sliding sequence of different positions of the sliding body, so that the requirements of landslide forms such as a pushing type landslide form and a traction type landslide form are met, and the accurate control of the water inlet speed of the sliding body is guaranteed.
The landslide simulation system 1 has a simulated gliding mass placed on the surface thereof, as shown in fig. 5, the simulated gliding mass comprises a flexible box 7, a plurality of small balls 8 are placed in the flexible box 7, the small balls 8 are small balls with the same diameter and rough surfaces made of different materials (distinguished in color) and manufactured according to the relevant parameter data of actual slippery zone soil (block), and the small balls can be cemented with one another and placed in the flexible boxes 7 with different sizes to simulate gliding masses with different sizes. Flexible case 7 adopts hydrophilic resin material to obtain through 3D printing technique, and this resin material meets water and can take place to soften and dissolve in water to the phenomenon that the gliding mass breaks, scatters after the gliding into water has been simulated. Each small ball 8 is internally provided with a signal emitter 121, the signal emitter 121 is connected with a signal receiver 122, a positioning chip is placed in each small ball 8, and the position of each small ball 8 is positioned in real time through signal propagation in the sliding process, so that the accurate control of the water entering form and the sliding track of the sliding body is ensured.
The slideway 3 is formed by splicing a plurality of sections of on-way slideways, the wave height instrument 10 is arranged between every two adjacent sections of on-way slideways, each section of on-way slideway is made of organic glass, and the on-way slideway can be spliced and fixed by fixing bolts according to different river channel types. And a height adjusting system 14 is arranged at the bottom of the slide way along the way, and as shown in fig. 3, the height adjusting system 14 is adopted to adjust the relative positions and slope angles of different slopes. And a geological slope surface 6 is arranged on the surface of the on-way slide way, as shown in fig. 4, the geological slope surface 6 is obtained by printing the slope surface in an isometric scale reduction manner by adopting a 3D printing technology according to the characteristics of actual geological landform and gluing.
As shown in fig. 1, a plurality of speed sensors 9 are distributed on the surface of the conveyor belt 12 to record the speed of each part of the slide body in real time, and wave height meters 10 are arranged at the joints of the slide ways 3 and the landslide simulation system 1 and on the slide ways 3 on the opposite surfaces of the landslide simulation system 1 and used for measuring the first wave height and the climbing height of the surge. A plurality of cameras 11 are further arranged along the slide way 3, and a pressure sensor 13 and a wave height instrument 10 are arranged at the tail end of the slide way 3 and used for measuring the dam front height of surge.
The using method of the invention comprises the following steps:
(1) determining the slope forms of the simulated slope and the on-way slide by controlling the height adjusting system;
(2) covering the geological slope 6 on an on-way slide way;
(3) installing a conveyor belt 12, loading the small balls 8 into the flexible box 7 and stacking the small balls on the conveyor belt 12;
(4) arranging speed sensors 9 at different positions of a conveyor belt 12, recording the speed of each part of the sliding body in real time, and starting a camera 11;
(5) a wave height instrument 10 is arranged between adjacent on-way slideways, and a pressure sensor 13 is arranged at the bottom of the slideway;
(6) the water inlet device 2 is opened, so that the slide way 3 is filled with stable water with a certain depth;
(7) the control system is started, and the rotating speed of the conveyor belt 12 is controlled by controlling different currents so as to control different water inlet speeds of the sliding body;
(8) and recording data in each measuring instrument in real time in the whole landslide and surge process.
Claims (9)
1. The landslide surge simulation device is characterized by comprising a slide way (3), wherein a water inlet device (2) is arranged at the upstream of the slide way (3), a water outlet device (4) is arranged at the downstream, a landslide simulation system (1) is fixed at one side of the upstream of the slide way (3), a simulated landslide body is placed on the landslide simulation system (1), the landslide simulation system (1) comprises a height adjusting system (14), the top of the height adjusting system (14) is connected with a plurality of conveyor belts (12), the roughness of the surface of each conveyor belt (12) is different, and the conveyor belts (12) are all connected with a control system; the simulation sliding body comprises a flexible box (7), a plurality of small balls (8) are arranged in the flexible box (7), signal transmitters (121) are arranged in the small balls (8), and the flexible box (7) is made of hydrophilic resin materials.
2. The landslide surge simulation device of claim 1, wherein the slide (3) is formed by splicing a plurality of sections of on-way slides, and wave height meters (10) are arranged between every two adjacent sections of on-way slides.
3. The landslide surge simulation device of claim 2 wherein the on-way slide is made of plexiglass and a height adjustment system (14) is provided at the bottom of the on-way slide.
4. A landslide swell simulation apparatus according to claim 2 or 3, wherein a geological slope (6) is provided along the surface of the slide.
5. The landslide surge simulation device of claim 1, wherein a return pipe (5) is connected between the water inlet device (2) and the water outlet device (4), and a water outlet (41) is arranged between the water outlet device (4) and the slide way (3).
6. The landslide surge simulation device of claim 1 wherein the end of the slide (3) is provided with a pressure sensor (13) and a wave height gauge (10).
7. The landslide surge simulation device according to claim 1 or 6, wherein the junction of the slide (3) and the landslide simulation system (1) and the slide (3) on the opposite side of the landslide simulation system (1) are provided with wave height meters (10).
8. The landslide surge simulation device of claim 1 wherein a plurality of speed sensors (9) are deployed on the surface of the conveyor belt (12).
9. The landslide surge simulation device of claim 1 wherein the height adjustment system (14) comprises a plurality of jacks, the plurality of jacks being in driving connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110463582.7A CN113203834B (en) | 2021-04-26 | 2021-04-26 | Landslide surge simulation device |
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| CN202110463582.7A CN113203834B (en) | 2021-04-26 | 2021-04-26 | Landslide surge simulation device |
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| CN113203834A CN113203834A (en) | 2021-08-03 |
| CN113203834B true CN113203834B (en) | 2021-12-28 |
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| CN202110463582.7A Active CN113203834B (en) | 2021-04-26 | 2021-04-26 | Landslide surge simulation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114878130B (en) * | 2022-07-08 | 2022-10-11 | 西南交通大学 | Informatization ground disaster power protection comprehensive test platform |
| CN116908416B (en) * | 2023-09-13 | 2024-02-13 | 中山大学 | Multifunctional rainfall landslide simulation test system and method |
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| CN104496387A (en) * | 2014-12-16 | 2015-04-08 | 中山大学 | Similar material based on softening characteristics of soft rocks after encountering water and preparation method for similar material |
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| KR101413647B1 (en) * | 2013-04-29 | 2014-07-04 | 한국지질자원연구원 | Apparatus for soil box experiment making shape of landslides surface changeable |
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| CN104496387A (en) * | 2014-12-16 | 2015-04-08 | 中山大学 | Similar material based on softening characteristics of soft rocks after encountering water and preparation method for similar material |
| CN105510557A (en) * | 2016-01-28 | 2016-04-20 | 西南石油大学 | Debris flow simulation test device and test method capable of adjusting and controlling hazard-cause factors |
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