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.
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.