CN115598325A - Rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis - Google Patents

Rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis Download PDF

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CN115598325A
CN115598325A CN202211505923.3A CN202211505923A CN115598325A CN 115598325 A CN115598325 A CN 115598325A CN 202211505923 A CN202211505923 A CN 202211505923A CN 115598325 A CN115598325 A CN 115598325A
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landslide
seepage
device based
test device
coupling analysis
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CN115598325B (en
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胡云鹏
冯文凯
柳侃
叶龙珍
黄瑛瑛
吴钟腾
唐雪峰
李双权
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Fujian Geological Engineering Investigation Institute
Chengdu Univeristy of Technology
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Fujian Geological Engineering Investigation Institute
Chengdu Univeristy of Technology
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather

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Abstract

The embodiment of the application provides a rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis, and relates to the field of landslide instability. Rainfall type landslide instability test device based on seepage flow macroscopic damage coupling analysis includes: the swivelling chute that the landslide platform bottom was seted up downwards, the inner chamber of its swivelling chute is provided with the conveyer belt, be provided with conveying motor in the positive one side of landslide platform simultaneously, and the bottom surface of landslide platform is provided with the dust catcher that can be to conveyer belt surface dust absorption, the back that the landslide platform includes controller and conveyer belt is provided with the signal wheel, and the back of signal wheel is provided with hall formula tachometric sensor, the signal of hall formula tachometric sensor discernment is carried to the controller at the landslide platform back, can realize the seepage flow landslide through conveyer belt and dust catcher after experimental, carry out repetition test many times.

Description

Rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis
Technical Field
The application relates to the technical field of landslide instability, in particular to a rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis.
Background
The soil landslide refers to a natural phenomenon that soil on a slope slides downwards along the slope integrally or dispersedly along a certain weak surface or a weak zone under the action of gravity under the influence of factors such as river scouring, underground water activity, rainwater immersion, earthquake, artificial slope cutting and the like. The inducing effect of rainfall on landslide is complex, and landslide is related to rainfall in a general way and is not exact enough. Part of the atmospheric precipitation is drained from the ground, and part of the atmospheric precipitation penetrates into the ground. And (3) part of the water enters the underground part, part of the water flows away, and part of the water is stored in the soil body, so that the underground water level in the soil body is gradually increased. When the underground water level rises to a certain height, the soil body loses stability and is induced to be a landslide. Mountain villages are distributed on two sides of the highway along the line. The investigation and the treatment of the hidden danger points of the soil landslide are related to the safety of people's life and property.
In the prior art (the patent application with the application number of CN202210819199.5 and the patent name of the rainfall type landslide instability test device based on seepage and macroscopic damage coupling analysis), the rainfall type landslide instability test device flows to the bottom of a soil landslide through a cavity in an unsaturated water layer box under the influence of gravity, namely an underground water system in a gentle mountain area, and the flow change of the underground water system of the soil landslide is simulated in a middle period. When the redundant water filling flow exceeds the gravity, underground water falls and is drained, redundant water flows to the bottom of the sample ridging through the gap of the unsaturated water layer box, the redundant water is continuously filled upwards, the physical structure of a surface soil layer is changed, soil landslide instability is caused, scientific research personnel can carry out accurate modeling test analysis on the soil rainfall type landslide according to the change of the underground water system seepage, the mountain soil landslide hidden danger points are pertinently investigated and managed, and the safety of people life and property is protected. In the process of implementing the technical scheme, at least the following problems are found in the prior art.
In the patent, the landslide instability test is completed through the landslide frame, however, after the test sample soil on the surface of the landslide frame passes through the seepage landslide, the friction coefficient between the surface of the landslide frame and the test sample soil is reduced due to the residue of the aqueous solution, so when the test verification needs to be performed again, the operation is inconvenient, and repeated tests cannot be provided for many times.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, the rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis is provided, and repeated tests can be carried out for a plurality of times after a seepage landslide test can be realized through a conveying belt and a dust collector.
According to this application embodiment's rainfall type landslide unstability test device based on seepage flow macroscopic damage coupling analysis is provided with the landslide platform including base and base top, is provided with landslide sample soil in the top of landslide platform simultaneously, includes:
the rotary groove is formed in the bottom surface of the landslide table in a downward mode, a conveying belt is arranged in an inner cavity of the rotary groove, a conveying motor is arranged on one side of the front surface of the landslide table, and a dust collector capable of collecting dust on the surface of the conveying belt is arranged on the bottom surface of the landslide table.
Further, the landslide table comprises a controller and a conveying belt, a signal wheel is arranged on the back of the conveying belt, a Hall type rotating speed sensor is arranged on the back of the signal wheel, and a signal identified by the Hall type rotating speed sensor is conveyed to the controller on the back of the landslide table.
Furthermore, the bottom surface of the landslide table penetrates through the inner cavity of the rotary groove and is provided with a bottom hole, a branch guide box is arranged at an opening at the upper end of the bottom hole, a dust collector is arranged on the bottom surface of the branch guide box, and an air drying bin and a dust collecting bin are respectively and inwards arranged on two sides of the upper end of the branch guide box.
Furthermore, a dust suction pipe is arranged on one side of the outer surface of the dust collector, an opening of the dust suction pipe is communicated with an inner cavity of the dust suction bin, an exhaust pipe is arranged on one side of the outer surface of the dust collector, and a first guide pipe is arranged on one side of the outer surface of the exhaust pipe.
Furthermore, an opening at one end of the exhaust pipe is connected with a sub-control box, a second flow guide pipe is arranged on the other side of the outer surface of the sub-control box, and an opening at one end of the second flow guide pipe is connected with the inner cavity wall of the rotary tank.
Furthermore, an air bin is arranged in the inner cavity of the rotary groove, a first expansion film is hermetically covered at the opening of the air bin, and an air pipe is arranged between the bottom surface of the air bin and the opening of the second flow guide pipe.
Furthermore, the inner cavity of the branch control box is arranged in a hollow structure, one side of the outer surface of the branch control box is provided with an air hole in a penetrating mode, a pair of connecting pipes are fixedly arranged at the opening of the air hole, one pair of connecting pipes are vertically arranged in an opposite mode, and a second expansion membrane is connected between the pair of connecting pipes in a sealing mode.
Furthermore, the upper end of the branch control box is fixedly provided with a telescopic box, the top of the telescopic box is fixedly provided with an electric push rod, the output end of the electric push rod is provided with a telescopic rod, and the tail end of the telescopic rod is fixedly provided with a partition plate capable of selectively separating the connecting pipes.
Furthermore, first exhaust holes are formed in the surface of the partition plate opposite to the second flow guide pipe, the first exhaust holes are of a U-shaped structure and stretch over the top wall of the branch control box, second exhaust holes are formed in one side of the outer surface of the telescopic box, and one end opening of each exhaust pipe is provided with a one-way valve.
Furthermore, one end top of the landslide table is provided with a water seepage tank, a water seepage hole is formed in the surface of the water seepage tank and runs through the water seepage tank to the surface of the landslide table, a turnover frame with a turnover angle is arranged above the landslide table, water pipes are uniformly distributed between the inner side walls of the turnover frame, and rainfall sprayers are uniformly distributed at the bottoms of the water pipes.
The beneficial effect of this application is: after landslide sample soil on the surface of the landslide table landslides, the conveying motor can be operated at the moment, then landslide sample soil on the surface of the conveying belt can be conveyed and transferred, meanwhile, the dry surface of the bottom surface of the conveying belt can be conveniently close to a previous group of test conditions, after the landslide sample soil on the bottom surface of the landslide table is tested, the surface of the landslide table is prevented from slipping and reducing the friction coefficient, and further the test accuracy is influenced.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic perspective view of an entire rainfall type landslide instability test apparatus based on seepage macroscopic damage coupling analysis according to an embodiment of the present application;
FIG. 2 is a schematic view of a disassembled structure of a landslide table and a base according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a landslide station explosion configuration according to an embodiment of the present application;
FIG. 4 is a schematic bottom view of a ramp according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a right side plan view of a ramp according to an embodiment of the application;
FIG. 6 isbase:Sub>A schematic view ofbase:Sub>A cross-sectional view taken along A-A according to an embodiment of the present application;
FIG. 7 is a schematic cross-sectional view of a distributor box according to an embodiment of the present application;
FIG. 8 is an enlarged schematic view at A in FIG. 6 according to an embodiment of the application;
FIG. 9 is a schematic diagram of a structure at B in FIG. 7 according to an embodiment of the present application;
FIG. 10 is a schematic cross-sectional view of a control box according to an embodiment of the present application;
fig. 11 is a schematic diagram of the structure at C in fig. 7 according to an embodiment of the present application.
An icon: 1-a base; 11-a first groove; 12-a motor; 13-a threaded rod; 14-a moving bar; 15-a push rod; 16-a second groove; 17-a filter plate; 18-a drain hole; 2-a landslide table; 21-a rotating trough; 211-gas cabin; 212-trachea; 213-a first expanded membrane; 22-a conveyor belt; 23-a conveying motor; 24-a signal wheel; 241-Hall type rotating speed sensor; 25-bottom hole; 26-a branch box; 261-air drying warehouse; 262-dust collection bin; 263-extension stage; 264-telescopic groove; 265-a wiping station; 266-ram; 267-a telescoping tube; 268-a first telescoping pole; 269-spring; 3-turning over the frame; 31-a water pipe; 32-a rain sprinkler; 4-landslide sample soil; 5-a water seepage tank; 6-water seepage hole; 7-a controller; 8, a dust collector; 81-exhaust pipe; 811-one-way valve; 82-a first draft tube; 83-a dust suction pipe; 84-a branch control box; 841-expansion box; 842-second vent; 843-air holes; 844-connecting pipe; 845-a second intumescent film; 85-a second draft tube; 86-an electric push rod; 861-a second telescopic rod; 862-divider plates; 863-first vent.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The following describes a rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis according to an embodiment of the present application with reference to the drawings.
As shown in fig. 1 and fig. 3, a rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis according to an embodiment of the present application includes: the landslide sample soil seepage device comprises a base 1, a landslide table 2, landslide sample soil 4, a seepage box 5 and seepage holes 6. The base 1 is used for supporting test smoothness, the upper end of the base 1 is provided with a landslide table 2 with an angle capable of being turned and adjusted, one side end of the bottom surface of the landslide table 2 is hinged to the upper end surface of the base 1, landslide sample soil 4 with a certain gradient is accumulated on the surface of the landslide part of the landslide table 2, landslide sample soil 4 can be conveniently tested for landslide instability on the surface of the landslide sample soil through the landslide table 2, the water seepage box 5 is arranged at the top of one end slope of the landslide table 2, a seepage hole 6 capable of supplying water solution seepage is formed in the surface of the water seepage box 5 to the surface of the landslide table 2 in a penetrating mode, the water solution can seep into the landslide sample soil 4 through the seepage hole 6, and seepage landslide can be tested.
The turnover frame 3 with a turnover angle is arranged above the landslide platform 2, water pipes 31 are uniformly distributed between the inner side walls of the turnover frame 3, and a plurality of rainfall sprayers 32 are uniformly distributed at the bottoms of the water pipes 31, so that a rainfall landslide scene can be simulated through the rainfall sprayers 32 when a seepage landslide test is carried out.
As shown in fig. 2, a first groove 11 is formed downward on the surface of the base 1 opposite to the bottom surface of the landslide table 2, a motor 12 is arranged on one side of the bottom surface of an inner cavity of the first groove 11, a rotatable threaded rod 13 is arranged at an output end of the motor 12, a moving rod 14 is connected to an outer surface of the threaded rod 13 in a threaded manner, the landslide table 2 can be adjusted in angle by a push rod 15 between an upper end of the moving rod 14 and the bottom surface of the landslide table 2, and two ends of the push rod 15 are respectively hinged to the moving rod 14 and the landslide table 2, so that when the landslide table 2 needs to be adjusted in angle, the motor 12 can be operated, the moving rod 14 can be moved transversely by the threaded rod 13 after the motor 12 is operated, and then the landslide table 2 can be rotated by taking one side end of the bottom surface as an axis by the push rod 15 after the moving rod 14 is moved, and further the landslide table 2 can be adjusted in angle. A second groove 16 is arranged on one side of the upper end of the base 1 close to the slope bottom of one side of the landslide table 2, a filter plate 17 capable of filtering the water solution of the landslide sample soil 4 is arranged at the opening of the upper end of the second groove 16, a drain hole 18 communicated with the inner cavity of the second groove 16 is arranged at one end of the base 1, and the water solution filtered by the inner cavity of the second groove 16 can be discharged through the drain hole 18.
As shown in fig. 3, a rotary groove 21 is formed downward on the bottom surface of the landslide table 2, a conveyor belt 22 is disposed in an inner cavity of the rotary groove 21, a conveyor motor 23 capable of driving the conveyor belt 22 to rotate is disposed on one side of the front surface of the landslide table 2, a signal wheel 24 is disposed on the back surface of the conveyor belt 22, a hall-type rotation speed sensor 241 is disposed on the back surface of the signal wheel 24, and the hall-type rotation speed sensor 241 can recognize and detect the rotation of the signal wheel 24. The signal recognized by the hall-type rotation speed sensor 241 is transmitted to the controller 7 on the back side of the landslide table 2. After the landslide sample soil 4 on the bottom surface of the landslide table 2 is subjected to landslide instability tests, when a plurality of landslide tests are required for proving stability, after the landslide sample soil 4 on the surface of the landslide table 2 is landslide, the conveying motor 23 can be operated at the moment, and after the conveying motor 23 is operated, the conveying belt 22 can be driven to rotate, so that after the conveying belt 22 rotates, the landslide sample soil 4 on the surface of the conveying belt 22 can be conveyed and transferred, meanwhile, the dry surface of the bottom surface of the conveying belt 22 can be conveniently close to the previous group of test conditions, and the surface of the landslide table 2 is prevented from being wet and slippery to reduce the friction coefficient after the landslide sample soil 4 on the bottom surface of the landslide table 2 is tested, so that the test accuracy is influenced.
As shown in fig. 4-7, a bottom hole 25 is formed through the bottom surface of the landslide table 2 to the inner cavity of the rotary groove 21, a branch guide box 26 is arranged at an opening at the upper end of the bottom hole 25, a dust collector 8 capable of collecting dust is fixedly arranged on one side of the bottom surface of the branch guide box 26, an air drying bin 261 and a dust collecting bin 262 are respectively and inwardly arranged at two sides of the upper end of the branch guide box 26, the openings at the upper ends of the air drying bin 261 and the dust collecting bin 262 are attached to the bottom surface of the conveyer belt 22, an opening of a dust collecting pipe 83 arranged on one side of the outer surface of the dust collector 8 is communicated with the inner cavity of the dust collecting bin 262, after the landslide sample soil 4 at the upper end of the conveyer belt 22 is subjected to landslide test, the landslide sample soil 4 adhered to the surface of the conveyer belt 22 can be adsorbed by the dust collecting pipe 83 of the dust collector 8, and the dust collecting bin 262 is attached to the surface of the conveyer belt 22.
An exhaust pipe 81 is arranged on one side of the outer surface of the dust collector 8 opposite to the dust collection pipe 83, a first guide pipe 82 is arranged in the cavity of the air drying bin 261, and one side of the outer surface of the exhaust pipe 81 extends to the inner side of the air drying bin 261, so that after impurities on the bottom surface of the conveying belt 22 are adsorbed by the dust collection pipe 83, tail gas discharged by the operation of the dust collector 8 can be discharged through the exhaust pipe 81, partial gas in the exhaust pipe 81 can be blown to the inner cavity of the air drying bin 261 through the first guide pipe 82, and then airflow can be blown to the surface of the conveying belt 22, so that the surface of the conveying belt can be dried, and the landslide test can be conveniently carried out again.
As shown in fig. 4, 6, and 8-10, a branch control box 84 is connected to an opening at one end of the exhaust pipe 81, a second guide pipe 85 is disposed on the other side of the outer surface of the branch control box 84 opposite to the exhaust pipe 81, and an opening at one end of the second guide pipe 85 is connected to the inner cavity wall of the rotary tub 21. The inner cavity wall of the rotating groove 21 at the slope bottom of the slipway 2 is provided with an air chamber 211, the opening of the air chamber 211 is hermetically covered with a first expansion film 213, and the first expansion film 213 can be attached to the surface of the conveying belt 22 in an expandable manner. An air pipe 212 is disposed between the bottom of the air chamber 211 and the opening of the second flow guiding pipe 85, and the air pipe 212 can allow air to enter the air chamber 211, so as to expand the first expansion film 213.
The inner cavity of the sub-control box 84 is arranged in a hollow structure, an air hole 843 is formed in one side of the outer surface of the sub-control box 84 in a penetrating mode, a pair of connecting pipes 844 are fixedly arranged at the opening of the air hole 843 communicated with the exhaust pipe 81, the pair of connecting pipes 844 are vertically arranged oppositely, a second expansion film 845 is connected between the pair of connecting pipes 844 in a sealing mode, and therefore the second expansion film 845 can expand. The upper end of the branch control box 84 is fixedly provided with a telescopic box 841, the top of the telescopic box 841 is fixedly provided with an electric push rod 86, the electric push rod 86 can be controlled by the controller 7 to operate, the output end of the electric push rod 86 is provided with a second telescopic rod 861 which can stretch and move, the tail end of the second telescopic rod 861 is fixedly provided with a partition plate 862 which can selectively block the connecting pipe 844, meanwhile, the surface of the partition plate 862 opposite to the second flow guide pipe 85 is provided with a first exhaust hole 863, the first exhaust hole 863 is in a U-shaped structure and stretches across the top wall of the branch control box 84, one side of the outer surface of the telescopic box 841 is provided with a second exhaust hole 842, and an opening at one end of the exhaust pipe 81 is provided with a one-way valve 811 which can enable air flow in a one-way. When the landslide sample soil 4 at the upper end of the conveying belt 22 needs to be transferred and conveyed, at this time, the conveying belt 22 can rotate, the conveying belt 22 rotates to enable the signal wheel 24 to rotate together, the signal wheel 24 is identified and detected by the hall-type rotating speed sensor 241 after rotating, then the controller 7 controls the electric push rod 86 to operate, the electric push rod 86 operates to enable the divider 862 to move downwards, the divider 862 can block the opening at one end of the connecting pipe 844, the opening at one end of the first exhaust hole 863 moves into the division box 84, then the expanded gas in the inner cavity of the gas cabin 211 can be exhausted through the first exhaust hole 863, further the first expansion film 213 is not attached to the surface of the conveying belt 22, meanwhile, when the conveying belt 22 rotates, the dust collector 8 operates, a part of the gas flow exhausted by the dust collector 8 dries the surface of the conveying belt 22, the other part of the gas flow enters the second expansion film 845 through the one-way valve 811, since one end of the connecting pipe 844 is blocked, then the second expansion film 845 begins to expand to store the gas, after the rotation of the conveying belt 22 stops, then the controller 7 controls the second expansion film 845 to move upwards, further the gas flow enters the second expansion film 8612, and then the water solution enters the first expansion test slide film 213, and the first expansion film 213 can be prevented from the first expansion test baffle 213, and the second expansion test slide test baffle 213 can stop attaching to stop, and the second expansion film 213, and the second expansion test slide test runner 862.
As shown in fig. 8 and 9, when the dust collection bin 262 adsorbs impurities on the bottom surface of the conveyor belt 22, the dust collection bin 262 on the bottom surface of the conveyor belt 22 cannot be cleaned while collecting dust, an extension table 263 is disposed on one side of the upper end of the dust collection bin 262, a telescopic groove 264 is downwardly disposed at the top end of the extension table 263, a wiping table 265 capable of moving in a telescopic manner is disposed inside the telescopic groove 264, a push rod 266 is downwardly extended from the bottom surface of the wiping table 265, a telescopic tube 267 is disposed on one side of an inner cavity wall of the dust collection bin 262, the telescopic tube 267 is vertically disposed below the push rod 266, a first telescopic rod 268 is disposed inside the telescopic tube 267, a spring 269 is disposed between one end of the first telescopic rod 268 and the inner cavity wall of the telescopic tube 267, when the dust collection bin 262 adsorbs the surface of the conveyor belt 22, a negative pressure is formed inside the dust collection bin 262 at this time, then the first telescopic rod 268 inside the telescopic tube 267 can be extended, after the first telescopic rod 268 is extended, the push rod 266 can push the push rod 266, and the wiping table 265 can clean the surface of the conveyor belt 22 better.
Specifically, the operating principle of the rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis is as follows: after the landslide sample soil 4 on the bottom surface of the landslide table 2 is subjected to landslide instability test, when a plurality of landslide tests are required for proving stability, after the landslide sample soil 4 on the surface of the landslide table 2 is landslide, the conveying motor 23 can be operated at the moment, and after the conveying motor 23 is operated, the conveying belt 22 can be driven to rotate, so that after the conveying belt 22 rotates, the landslide sample soil 4 on the surface of the conveying belt 22 can be conveyed and transferred, meanwhile, the dry surface of the bottom surface of the conveying belt 22 can be conveniently close to the previous group of test conditions, after the landslide sample soil 4 on the bottom surface of the landslide table 2 is tested, the surface of the landslide table 2 is prevented from slipping to reduce the friction coefficient, so that the test accuracy is influenced, meanwhile, after the landslide sample soil 4 on the conveying belt 22 is subjected to landslide test, when the landslide sample soil 4 is conveyed through the conveying belt 22, the landslide sample soil 4 adhered to the surface of the conveying belt 22 can be subjected to wet slipping through the dust suction pipe 83 of the dust collector 8, tail gas adsorbed by the operation of the dust collector 8 can be discharged through the exhaust pipe 81, and the exhaust pipe 81 can be blown to the inner cavity of the first draft pipe 261, so that the air flow can be dried again, and then can be dried through the inner cavity 82 of the guide pipe 22.
When the landslide sample soil 4 at the upper end of the conveying belt 22 needs to be transferred and conveyed, at this time, the conveying belt 22 can rotate, the conveying belt 22 rotates to enable the signal wheel 24 to rotate together, the signal wheel 24 is identified and detected by the hall-type rotating speed sensor 241 after rotating, then the controller 7 controls the electric push rod 86 to operate, the electric push rod 86 operates to enable the divider 862 to move downwards, the divider 862 can block the opening at one end of the connecting pipe 844, the opening at one end of the first exhaust hole 863 moves into the division box 84, then the expanded gas in the inner cavity of the gas cabin 211 can be exhausted through the first exhaust hole 863, further the first expansion film 213 is not attached to the surface of the conveying belt 22, meanwhile, when the conveying belt 22 rotates, the dust collector 8 operates, a part of the gas flow exhausted by the dust collector 8 dries the surface of the conveying belt 22, the other part of the gas flow enters the second expansion film 845 through the one-way valve 811, since one end of the connecting pipe 844 is blocked, then the second expansion film 845 begins to expand to store the gas, after the rotation of the conveying belt 22 stops, then the controller 7 controls the second expansion film 845 to move upwards, further the gas flow enters the second expansion film 8612, and then the water solution enters the first expansion test slide film 213, and the first expansion film 213 can be prevented from the first expansion test baffle 213, and the second expansion test slide test baffle 213 can stop attaching to stop, and the second expansion film 213, and the second expansion test slide test runner 862.
When the dust collection bin 262 adsorbs the surface of the conveyor belt 22, negative pressure is formed inside the dust collection bin 262 at this time, then the first telescopic rod 268 inside the telescopic tube 267 can extend out, after the first telescopic rod 268 extends out, the first telescopic rod 268 can push the push rod 266, and after the push rod 266 moves, the wiping table 265 at the upper end of the push rod 266 can wipe the surface of the conveyor belt 22 after adsorption, so that the cleaning effect is better.
It should be noted that the specific model specifications of the signal wheel 24, the hall-type rotation speed sensor 241, the electric push rod 86 and the controller 7 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art, so detailed burdens are not needed.
The power supply of the signal wheel 24, the hall-type rotation speed sensor 241, the electric push rod 86 and the controller 7 and the principle thereof will be clear to those skilled in the art and will not be described in detail herein.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. Rainfall type landslide instability test device based on seepage flow macroscopic damage coupling analysis is provided with landslide platform (2) including base (1) and base (1) top, is provided with landslide appearance soil (4) in the top of landslide platform (2) simultaneously, its characterized in that includes:
a rotary groove (21) is formed downwards on the bottom surface of the landslide table (2), a conveying belt (22) is arranged in an inner cavity of the rotary groove (21), a conveying motor (23) is arranged on one side of the front surface of the landslide table (2), and a dust collector (8) capable of collecting dust on the surface of the conveying belt (22) is arranged on the bottom surface of the landslide table (2).
2. A rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis as in claim 1, wherein the landslide table (2) comprises a controller (7) and a conveyor belt (22), and a signal wheel (24) is arranged on the back of the conveyor belt (22), and a hall type rotation speed sensor (241) is arranged on the back of the signal wheel (24), and a signal identified by the hall type rotation speed sensor (241) is transmitted to the controller (7) on the back of the landslide table (2).
3. The rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis of claim 2, wherein the bottom surface of the landslide table (2) penetrates to the inner cavity of the rotary groove (21) to form a bottom hole (25), meanwhile, a branch guide box (26) is arranged at an opening at the upper end of the bottom hole (25), the dust collector (8) is arranged on the bottom surface of the branch guide box (26), and an air drying bin (261) and a dust collecting bin (262) are respectively and inwardly arranged on two sides of the upper end of the branch guide box (26).
4. The rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis as claimed in claim 3, wherein a dust suction pipe (83) is arranged on one side of the outer surface of the dust collector (8), the opening of the dust suction pipe (83) is communicated with the inner cavity of the dust suction bin (262), an exhaust pipe (81) is arranged on one side of the outer surface of the dust collector (8), and a first guide pipe (82) is arranged on one side of the outer surface of the exhaust pipe (81).
5. The rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis as claimed in claim 4, wherein an opening at one end of the exhaust pipe (81) is connected with a sub-control box (84), a second draft tube (85) is arranged on the other side of the outer surface of the sub-control box (84), and an opening at one end of the second draft tube (85) is connected with the inner cavity wall of the rotary tank (21).
6. The rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis as claimed in claim 5, wherein the inner cavity of the rotating tank (21) is provided with an air chamber (211), an opening of the air chamber (211) is hermetically covered with a first expansion film (213), and an air pipe (212) is arranged between the bottom surface of the air chamber (211) and the opening of the second flow guide pipe (85).
7. The rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis as claimed in claim 6, wherein the inner cavity of the branch control box (84) is arranged in a hollow structure, an air hole (843) penetrates through one side of the outer surface of the branch control box (84), a pair of connecting pipes (844) are fixedly arranged at the opening of the air hole (843), the pair of connecting pipes (844) are vertically arranged in an opposite manner, and a second expansion membrane (845) is hermetically connected between the pair of connecting pipes (844).
8. A rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis as in claim 7, wherein the upper end of the sub-control box (84) is fixedly provided with a telescopic box (841), the top of the telescopic box (841) is fixedly provided with an electric push rod (86), the output end of the electric push rod (86) is provided with a second telescopic rod (861), and the tail end of the second telescopic rod (861) is fixedly provided with a separation plate (862) capable of selectively separating the connection pipe (844).
9. The rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis as claimed in claim 8, wherein a first exhaust hole (863) is formed in a surface of the partition plate (862) opposite to the second draft tube (85), the first exhaust hole (863) is in a U-shaped structure and stretches across a top wall of the branch control box (84), a second exhaust hole (842) is formed in one side of an outer surface of the telescopic box (841), and a one-way valve (811) is arranged at an opening at one end of the exhaust pipe (81).
10. The rainfall type landslide instability test device based on seepage macroscopic damage coupling analysis according to claim 1, wherein a water seepage box (5) is arranged at the top of one end of the landslide table (2), a water seepage hole (6) is formed between the surface of the water seepage box (5) and the surface of the landslide table (2) in a penetrating mode, a turnover frame (3) with a turnover angle can be turned over is arranged above the landslide table (2), water pipes (31) are uniformly distributed between the inner side walls of the turnover frame (3), and rainfall spray heads (32) are uniformly distributed at the bottom of the water pipes (31).
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