CN113447634A

CN113447634A - Karst analogue means that sinks

Info

Publication number: CN113447634A
Application number: CN202110506137.4A
Authority: CN
Inventors: 盛建龙; 乔宇; 俞栋华; 姜维; 王平
Original assignee: Wuhan University of Science and Engineering WUSE
Current assignee: Wuhan University of Science and Engineering WUSE; Wuhan University of Science and Technology WHUST
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-09-28

Abstract

The invention relates to the technical field of karst collapse simulation, and discloses a karst collapse similar simulation device which comprises a water passing pipeline, a collapse simulation box, a rainfall simulator, a water level controller and a karst opening, wherein valve bodies are fixed at two ends of the water passing pipeline, the karst opening is fixed on the outer surface of the water passing pipeline through a tee joint, and the collapse simulation box is arranged above the water passing pipeline; the rainfall simulator is arranged above the collapse simulation box, so that the influence of subsidence of karst can be considered, the influence of subsidence of rainfall or extreme rainfall weather on the karst can be researched, the ring can be connected with the top thread of the karst opening in an experiment, the rings with different inner diameters can be replaced in the experiment process, the device errors caused by the different rings can be better reduced by the thread structure, and the influence of subsidence of the karst opening size on the karst can be researched by the rings with different inner diameters.

Description

Karst analogue means that sinks

Technical Field

The invention relates to the technical field of karst collapse simulation, in particular to a karst collapse simulation device.

Background

The karst collapse is one of main geological disasters of a karst area in China, the development process is a comprehensive system which is substantially formed by rock and soil bodies above karst holes and water and gas existing in karst caves, the instability effect generated under the action of certain power is a process for developing from an unbalanced state to a balanced state, the development of the karst is concealed, the karst collapse is bursty, the development mechanism of the karst collapse is researched, the karst collapse simulation device can help to predict the karst environment possibly existing in actual engineering and prevent and treat the karst collapse, and on the basis, the karst collapse simulation device is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a karst collapse simulation device, which solves the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a karst analogue means that sinks, includes the sewer pipe, sinks simulation case, rainfall simulator, water level controller and karst opening, the both ends of sewer pipe all are fixed with the valve body, just the surface of sewer pipe is fixed with through the tee bend the karst opening, the top of sewer pipe is equipped with the simulation case that sinks, the bottom center department of simulation case that sinks with karst open-ended top fixed connection, karst open-ended top extends to the simulation to that sinks to inside, the top of simulation case that sinks is equipped with the rainfall simulator, the surface of sewer pipe is located the right side of simulation case that sinks is fixed with the water level controller, the surface bottom mounting of water temperature controller has the hose.

Preferably, the simulation case that collapses is the organic glass material, just the simulation case that collapses is open-top's hollow cuboid structure.

Preferably, the length, width and height of the collapse simulation box are 1m, 1m and 0.5m, respectively, and the side wall thickness of the collapse simulation box is 15mm and the bottom thickness is 20 mm.

Preferably, the top of the outer wall of the karst opening is positioned in the inner thread of the collapse simulation box and is connected with a circular ring.

(III) advantageous effects

The invention provides a karst collapse similar simulation device, which has the following beneficial effects:

(1) the rainfall simulator is arranged above the collapse simulation box, so that the influence on the collapse of the karst when the earth surface rains can be considered, and meanwhile, the influence on the collapse of the karst caused by rainfall or extreme rainfall weather can be researched.

(2) According to the invention, the top of the karst opening is in threaded connection with the ring, so that the rings with different inner diameters can be replaced in the experiment process, the threaded structure can well reduce the device errors caused by replacing different rings, and the rings with different inner diameters can be used for researching the influence of the karst opening size on karst collapse.

(3) According to the invention, the water level controller is fixed on the water passing pipeline, and the water level height in the collapse simulation box can be controlled through the water level controller, so that the simulated underground water level can be controlled. The water level controller is cylindrical and is used for reducing the error of the soil amount collected after erosion and scouring in the test process.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention.

In the figure: 1. a valve body; 2. a water passing pipeline; 3. a collapse simulation box; 4. a rainfall simulator; 5. a water level controller; 6. a hose; 7. opening a karst; 8. a circular ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, the present invention provides a technical solution: a karst collapse similar simulation device comprises a water passing pipeline 2, a collapse simulation box 3, a rainfall simulator 4, a water level controller 5 and a karst opening 7, wherein valve bodies 1 are fixed at two ends of the water passing pipeline 2, the karst opening 7 is fixed on the outer surface of the water passing pipeline 2 through a tee joint, the collapse simulation box 3 is arranged above the water passing pipeline 2, the center of the bottom of the collapse simulation box 3 is fixedly connected with the top of the karst opening 7, the top end of the karst opening 7 extends into the collapse simulation box 3, the rainfall simulator 4 is arranged above the collapse simulation box 3, the water level controller 5 is fixed on the right side of the collapse simulation box 3 on the outer surface of the water passing pipeline 2, a hose 6 is fixed at the bottom of the outer surface of the water temperature controller 5, when the device is used, soil bodies of an actual engineering environment to be simulated are filled into the collapse simulation box 3, then the valve bodies 1 at two ends are opened, the water enters the water passing pipeline 2 and enters the collapse simulation box 3 through the karst opening 7, after erosion and scouring for a period of time, the water is mixed with soil body of the actual engineering environment to be simulated and is discharged, the discharged soil body is collected and can be used for researching the development 1 condition of a soil cave, and in the using process, water can be discharged through the hose 6, so that the water level in the collapse simulation box 3 can be adjusted, the water level required by simulation is reached, in addition, the rainfall simulator 4 can be opened, the influence of surface rainfall on the karst can be simulated, the influence of rainfall or extreme rainfall weather on the collapse of the karst can be researched, and the rainfall simulator 4 is similar to an agricultural sprinkler.

Further, simulation case 3 that sinks is the organic glass material, and simulation case 3 that sinks is open-top's cavity cuboid structure, conveniently puts into the soil body that needs the actual engineering environment of simulation to make things convenient for the experimenter to watch the condition of inside.

Further, the length, width and height of the collapse simulation box 3 are respectively 1m, 1m and 0.5m, the thickness of the side wall of the collapse simulation box 3 is 15mm, and the thickness of the bottom of the collapse simulation box 3 is 20mm, so that the collapse simulation box 3 has certain strength and is used for containing soil bodies of the actual engineering environment to be simulated.

Further, the inside threaded connection that the outer wall top of karst opening 7 is located the simulation case 3 that collapses has ring 8, can change the ring 8 of different internal diameters size on karst opening 7 at the in-process of experiment to can study the influence of the karst opening size of collapsing to the karst.

In conclusion, the working process of the invention is as follows: when the device is used, soil of an actual engineering environment to be simulated is loaded into the collapse simulation box 3, then the valve bodies 1 at two ends are opened, water enters the water passing pipeline 2 and enters the collapse simulation box 3 through the karst opening 7, after erosion and scouring for a period of time, the water is mixed with the soil of the actual engineering environment to be simulated and is discharged, the discharged soil is collected and can be used for researching the development 1 condition of a soil cave, water can be discharged in the using process through the hose 6, the water level in the collapse simulation box 3 can be adjusted, the water level required by simulation is reached, in addition, the rainfall simulator 4 can be opened, the influence of surface rainfall on the karst can be simulated, and the influence of rainfall or extreme rainfall weather on the collapse of the karst can be researched.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a karst similar analogue means that collapses which characterized in that: comprises a water passing pipeline (2), a collapse simulation box (3), a rainfall simulator (4), a water level controller (5) and a karst opening (7), wherein valve bodies (1) are fixed at both ends of the water passing pipeline (2), the outer surface of the water passing pipeline (2) is fixed with the karst opening (7) through a tee joint, the collapse simulation box (3) is arranged above the water passing pipeline (2), the center of the bottom of the collapse simulation box (3) is fixedly connected with the top of the karst opening (7), the top end of the karst opening (7) extends to the inner part of the collapse simulation chamber (3), the rainfall simulator (4) is arranged above the collapse simulation box (3), the water level controller (5) is fixed on the outer surface of the water passing pipeline (2) on the right side of the collapse simulation box (3), and a hose (6) is fixed at the bottom of the outer surface of the water temperature controller (5).

2. A karst collapse simulation apparatus according to claim 1, wherein: the collapse simulation box (3) is made of organic glass materials, and the collapse simulation box (3) is of a hollow cuboid structure with an open top.

3. A karst collapse simulation apparatus according to claim 1, wherein: the length, the width and the height of the collapse simulation box (3) are respectively 1m, 1m and 0.5m, the thickness of the side wall of the collapse simulation box (3) is 15mm, and the thickness of the bottom of the collapse simulation box is 20 mm.

4. A karst collapse simulation apparatus according to claim 1, wherein: the top of the outer wall of the karst opening (7) is positioned on the inner thread of the collapse simulation box (3) and is connected with a circular ring (8).