CN108801816B - Large-equivalent underground shallow-buried explosion effect simulation device - Google Patents
Large-equivalent underground shallow-buried explosion effect simulation device Download PDFInfo
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- CN108801816B CN108801816B CN201710295225.8A CN201710295225A CN108801816B CN 108801816 B CN108801816 B CN 108801816B CN 201710295225 A CN201710295225 A CN 201710295225A CN 108801816 B CN108801816 B CN 108801816B
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/313—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by explosives
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/023—Pressure
- G01N2203/0234—Low pressure; Vacuum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
- G01N2203/0647—Image analysis
Abstract
The invention discloses a large-equivalent underground shallow-buried explosion effect simulation device, which comprises a base, a container tank, a first vacuumizing device and an explosion source device, wherein the explosion source device comprises a glass cover, a detonating cord, a steel pipe, a sealing plug, an electric detonator, an exploder and an air pressure regulating device; the base is used as a supporting component of the whole simulation device and is arranged at the bottommost end of the whole device; the container tank is arranged at one end of the base; the first vacuumizing device is connected with the container tank through a pipeline; the glass cover and the electric detonator are both positioned in the container, the bottom end of the glass cover is sealed by a sealing plug, and the detonating cord is positioned in the glass cover; the detonating cord penetrates out of the sealing plug through the steel tube and is connected with the conical end of the electric detonator; the other end of the electric detonator is connected with an initiator outside the container; the bottom end of the glass cover is connected with the air pressure regulating device; the simulation device can repeatedly develop the simulation test of the large-specific-scale throwing explosion effect under different parameter conditions, and has simple operation and low cost.
Description
Technical Field
The invention belongs to the field of underground protection engineering construction and protection technology and engineering blasting research, and particularly relates to a large-equivalent underground shallow-buried explosion effect simulation device.
Background
With the successful application of various blasting technologies in the fields of traffic, hydraulic and hydroelectric engineering construction, energy and mineral resource investigation and development, disaster prevention and disaster reduction of geological disasters and the like, the scale of engineering blasting is continuously expanded. The current many engineering blasting schemes, in particular complex charging configuration schemes are mostly based on geometric similarity empirical formulas, and a large number of blasting practices show that when the underground explosion scale is increased, the action of gravity in the process of forming a throwing pit must be considered, so that a simulation optimizing device for large-equivalent engineering blasting is developed, the blasting parameters can be optimally designed, the blasting efficiency is improved, and the effect and effect of the engineering blasting can be scientifically predicted and forecasted, thereby having important scientific significance and engineering application value.
For the natural rock mass for underground explosion research, due to the complex structural and constructional characteristics, the movement, deformation and destruction of the rock under the action of explosion have uncoordinated and incompatible characteristics, the physical process is complex, and the influence factors are numerous. At present, great difficulties exist in theoretical analysis, and numerical simulation is difficult to accurately perform. The on-site test can be researched aiming at specific conditions, but has long research period, consumes a large amount of manpower and material resources, has huge test risk and poor repeatability, and is difficult to develop system research.
The method adopting the similar physical simulation test can truly and intuitively reflect the spatial relationship between the geological structure and the charge configuration, can accurately simulate the influence of various influencing factors on the formation of the pits and the bulges in the large-equivalent underground shallow explosion process, enables people to more easily and comprehensively grasp the movement, deformation and damage characteristics of the rock mass in the explosion process, and is an effective method for researching the underground explosion problem, in particular the underground nuclear explosion problem.
Currently, the main underground explosion physical model test devices at home and abroad mainly comprise a centrifuge explosion simulation device and a vacuum chamber explosion simulation device. Yue Songlin et al in the literature (Yue Songlin, yanyu, wang Derong, etc.) model test methods and comparative analysis (J) of the effects of explosion in rock. Programming and engineering report, 2014, 33 (9): 1925-1932) indicate that geotechnical explosion centrifuges are limited in analog scale due to the limitation of the acceleration of the centrifuges and the size of the basket model box, are only suitable for small equivalent and small proportion of buried throwing explosion, and the vacuum chamber explosion model test device is high in controllability and simulation is applicableThe method has wide range and obvious advantages in simulation of large-equivalent large-burial-depth underground explosion pit formation. The earliest foreign explosion vacuum simulation device is reported by M.A. Sadovski and V.V. Adushkin and other scholars of the Soviet-Engineers of geophysical institute, and the application requirement of Soviet-Union for large-scale engineering explosion in the 70 th century is 20, and the vacuum chamber underground explosion simulation device is manufactured, and has the diameter of 2.3m, the height of 3m and the volume of 12m 3 The analog scale is from 1:100 to 1:1000, one to ten explosion sources can be placed in the vacuum chamber, necessary delayed explosion can be simultaneously initiated or implemented, the explosion source device is made of a thin-wall rubber air bag arranged in a spherical nickel-chromium wire metal grid, and the purpose of releasing compressed gas is achieved by heating the nickel-chromium wire through low-voltage current to burn the rubber ball. However, the detonation mode of the device is not controllable in heating time of the nichrome wires, accurate detonation control cannot be achieved for delayed detonation of a plurality of groups of detonation sources, and the rubber air bag is likely to randomly open a crack from a certain position to cause non-uniform gas ejection, is inconsistent with the physical process of underground throwing explosion pit formation, and affects test simulation results.
In conclusion, no related report of a large-equivalent underground explosion effect vacuum chamber model test device exists in China, and the existing geotechnical explosion centrifuge has obvious advantages in the aspects of small-equivalent and shallow-buried deep explosion simulation, but has high manufacturing cost and high test cost, and is not suitable for large-scale engineering explosion simulation. Although the foreign vacuum chamber explosion simulation device starts early, the whole device configuration is old, the automation degree and the measurement technology are lagged, and the accurate initiation control of the explosion source device is still to be upgraded and improved. The large equivalent (0.1-100 kilotons) underground explosion effect simulation test device can fill the blank of the device in China.
Disclosure of Invention
The invention aims to provide a large-equivalent underground shallow-buried explosion effect simulation device so as to solve the problem that the current domestic geotechnical explosion centrifuge cannot simulate the phenomenon of large-equivalent underground throwing explosion.
The technical solution for realizing the purpose of the invention is as follows:
the large-equivalent underground shallow-buried explosion effect simulation device comprises a base, a container, a first vacuumizing device and an explosion source device, wherein the explosion source device comprises a glass cover, an explosion fuse, a steel pipe, a sealing plug, an electric detonator, an exploder and an air pressure adjusting device;
the base is used as a supporting component of the whole simulation device and is arranged at the bottommost end of the whole device; the container tank is arranged at one end of the base; the first vacuumizing device is connected with the container tank through a pipeline; the glass cover and the electric detonator are both positioned in the container tank, the bottom end of the glass cover is sealed by the sealing plug, the detonating cord is positioned in the glass cover, the detonating cord penetrates out of the sealing plug by the steel pipe, and the bottom end of the steel pipe is sealed; the detonating cord is connected with the conical end of the electric detonator through a first connecting piece; the other end of the electric detonator is connected with an exploder outside the gas accommodating tank; the bottom end of the glass cover is connected with an air pressure regulating device.
Compared with the prior art, the invention has the remarkable advantages that:
(1) The wedge type clamp connection structure is adopted to realize the opening and airtight connection of the flange plate and the container tank, so that the pressure-bearing airtight performance is good, the operation is convenient, and the degree of automation is high.
(2) The flexible detonating cord is adopted to transfer detonation of the glass breaking housing, so that accurate detonation of the detonation source is realized, the blasting effect is good, safety and controllability are realized, and the authenticity and applicability of the simulated detonation source are improved.
(3) The device has the advantages of adjustable and controllable test parameters such as vacuum degree and glass cover pressure value, wide simulation range, no need of providing extra acceleration like a geotechnical centrifuge, and obvious advantages in simulating large-scale underground shallow explosion pit formation.
(4) The universality is strong: the device can simulate the underground shallow chemical explosion throwing phenomenon under the conditions of spherical charge and cylindrical charge, simulate the throwing explosion phenomenon in multi-layer medium under different geological and topographic conditions, and has a measuring function.
(5) Compared with the existing simulation device which adopts a centrifugal machine for a few tens of millions to hundreds of millions, the device has low manufacturing cost, and the related test results can be widely applied to the prediction and forecast of pit forming damage mechanisms of earth boring nuclear weapons and large engineering blasting effects.
The invention is described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the simulation device of the present invention.
Fig. 2 is a front view of the vacuum vessel.
Fig. 3 is a right side view of the vacuum vessel.
Fig. 4 is a schematic diagram of the structure of the explosion source apparatus.
Fig. 5 (a-h) are pictures taken by the camera of the explosion process of the explosion simulation test change.
FIG. 6 is a photograph of the result of an explosion pit simulation test.
Description of the embodiments
1-4, the large-equivalent underground shallow-buried explosion effect simulation device comprises a base 1-1, a container 1, a first vacuumizing device 3 and an explosion source device 2; the explosion source device 2 comprises a glass cover 2-1, an explosion wire 2-2, a steel pipe 2-3, a sealing plug 2-4, an electric detonator 2-6, an exploder 2-9 and an air pressure regulating device;
the base 1-1 is used as a supporting component of the whole simulation device and is arranged at the bottommost end of the whole device; the container tank 1 is arranged at one end of the base 1-1; the first vacuumizing device is connected with the container tank 1 through a pipeline and is used for vacuumizing the container tank 1 so as to enable the pressure in the container tank 1 to reach the pressure required by simulation work; the glass cover 2-1 and the electric detonator 2-6 are both positioned in the container tank 1, the bottom end of the glass cover 2-1 is sealed by the sealing plug 2-4, the detonating cord 2-2 is positioned in the glass cover 2-1, the detonating cord 2-2 penetrates out of the sealing plug 2-4 by the steel pipe 2-3, and the bottom end of the steel pipe 2-3 is sealed; the detonating cord 2-2 is connected with the conical end of the electric detonator 2-6 through the first connecting piece 2-7 so as to ensure the stability of connection; the other end of the electric detonator 2-6 is connected with an initiator 2-9 outside the container tank 1; the bottom end of the glass cover 2-1 is connected with an air pressure adjusting device, and the air pressure adjusting device is used for adjusting the air pressure in the glass cover 2-1 to meet the requirements of experiments;
as a further improvement of the above embodiment, one end of the detonating cord 2-2 located in the glass cover 2-1 is screwed into a spiral shape, so as to increase the length of the detonating cord 2-2 at the center of the glass cover 2-1, and ensure the spherical explosion effect of the detonating cord 2-2 spreading the shock wave around the center of the glass cover 2-1.
Further, the air pressure regulating device comprises an air needle 2-5, a second connecting piece 2-10, an electromagnetic valve 2-11, a battery 2-12, a switch 2-13, a pressure buffer 2-15, a ball valve 2-16, a pressure gauge 2-17, a second vacuum gauge 2-18, a pressure relief safety valve 2-19, a second air compressor 2-20 and a second vacuum pump 2-21; the air needle 2-5 penetrates through the sealing plug 2-4 and is connected with the glass cover 2-1, the air needle 2-5 is connected with the electromagnetic valve 2-11 through the second connecting piece 2-10, and the other end of the electromagnetic valve 2-11 is connected with the pressure buffer 2-15; the second air compressor 2-20, the second vacuum pump 2-21, the pressure gauge 2-17 and the second vacuum gauge 2-18 are connected with the pressure buffer 2-15 through ball valves 2-16, and a pressure relief safety valve 2-19 is also arranged on the pressure buffer 2-15; the ball valve 2-16 is used for controlling the connection or disconnection of the air compressor 2-20 or the second vacuum pump 2-21 and the pressure buffer 2-15; when the pressure buffer 2-15 is connected with the second air compressor 2-20, the pressure gauge 2-17 is used for measuring the pressure in the pressure buffer 2-15, namely the pressure in the glass cover 2-1; when the pressure buffer 2-15 is communicated with the second vacuum pump 2-21, the second vacuum gauge 2-18 is used for measuring the vacuum degree in the pressure buffer 2-15, namely, the vacuum degree in the glass cover 2-1; the battery 2-12 is connected with the electromagnetic valve 2-11 through the switch 2-13, and the battery 2-12 is used for powering on and off the electromagnetic valve 2-11 through the switch 2-13 so as to control the opening and closing of the electromagnetic valve 2-11.
According to the test requirement, when the gas pressure in the glass cover 2-1 exceeds the atmospheric pressure, the corresponding ball valves 2-16 on the second vacuum pump 2-21 and the second vacuum gauge 2-18 are closed, the second air compressor 2-20, the pressure gauge 2-17 and the opening switch 2-13 are opened, the pressure buffer 2-15 is inflated, when the required pressure is reached, the inflation is stopped, the opening switch 2-13 is opened, at the moment, a certain amount of gas is filled in the glass cover 2-1, the electric detonator 2-6 is detonated by the detonator 2-9, the detonating cord 2-2 is detonated, and the wave generated by the detonating cord 2-2 detonates to break the glass cover 2-1, so that the purpose of releasing the compressed gas is achieved. When the gas pressure in the glass cover 2-1 is lower than the atmospheric pressure, the corresponding ball valves 2-16 on the second air compressor 2-20 and the pressure gauge 2-17 are closed, the corresponding ball valves 2-16 on the second vacuum pump 2-21 and the second vacuum gauge 2-18 are opened, the pressure buffer 2-15 is pumped, when the required vacuum degree is reached, the pumping is stopped, the switch 2-13 is closed, at the moment, the inside of the glass cover 2-1 reaches a certain pressure, the electric detonator 2-6 is detonated by the detonating device 2-9, the detonating cord 2-2 is detonated, and the shock waves generated by the detonating cord 2-2 break the glass cover 2-1, so that the purpose of releasing gas is achieved.
As a further improvement of the above embodiment, the electric detonator 2-6 and the first connecting piece 2-7 are installed in the protecting cover 2-8, so as to avoid the damage of the explosion shock wave to the surrounding environment.
In some embodiments, the glass cover 2-1 may be a spherical, cylindrical, polygonal, or other shaped cavity structure.
Further, the first vacuumizing device comprises a first vacuum pump 3 and a first vacuum gauge 10; the first vacuum pump and the first vacuum gauge 3 are connected with the container tank 1 uniformly and are respectively used for vacuumizing the container tank 1 and displaying the vacuum degree. The vacuum pump 3 is a multistage pump consisting of a sliding vane pump and a Roots pump.
As a preferred embodiment, the container tank 1 has a cylindrical cavity structure and adopts a horizontal type; in some embodiments, the container 1 may also be a cubic cavity structure, a circular cavity structure, a polygonal or other cavity structure, and be vertical; the container 1 is internally provided with a box body 6 for filling the embedded filler 9 required by the explosion simulation of quartz sand, soil mass and the like.
In some embodiments, the main body of the container tank 1 is made of clad steel plate (stainless steel+container plate), an external wound sound insulation material layer and a glass fiber reinforced plastic layer.
Further, a first flange connecting pipe 1-7, a second flange connecting pipe 1-9 and a third flange pipe 1-12 are arranged on the container tank 1 and are used for connecting various pipelines; one end of the container tank 1 is provided with a flange plate 1-13 as a sealing door;
as a further improvement to the above embodiment, the entire simulation apparatus further includes an automatic closing means for automatically screwing or unscrewing the flanges 1 to 13 with the container 1 to alleviate manual operations; the automatic sealing device comprises a rotary clamp 1-4, a pneumatic telescopic rod 1-15 and a first air compressor 11; two ends of the outer circle of the rotary clamp 1-4 are hinged with the pneumatic telescopic rod 1-15 respectively, and the other ends of the pneumatic telescopic rod 1-15 are fixed on the base 1-1 and are connected with the first air compressor 11 through an air pipe; wedge blocks 1-16 are uniformly arranged on the inner circumference of the clamp 1-4 and the outer circumference of the flange plate 1-3 at intervals, and the inclination directions of the wedge blocks 1-16 on the rotary clamp 1-4 and the wedge blocks 1-16 on the flange plate 1-3 are opposite; when the device works, the rotary clamp 1-4 is driven to rotate by the extension of the pneumatic telescopic rod 1-15 at one end and the shortening of the pneumatic telescopic rod 1-15 at the other end, the wedge block 1-16 on the clamp 1-4 is tightly combined with or separated from the wedge block 1-16 on the flange plate 1-3, and the flange plate 1-13 is screwed or unscrewed from the container tank 1;
further, the rotating angle of the rotary clamp 1-4 is controlled by the position of a magnetic switch arranged on the pneumatic telescopic rod 1-15, and the telescopic stroke of the pneumatic telescopic rod 1-15 can be controlled.
In other embodiments, the automatic sealing device may also use a hydraulic telescopic rod, and the flanges 1-13 and the container tank 1 are screwed or unscrewed by hydraulically controlling the telescopic action of the hydraulic telescopic rod.
As a further improvement to the above embodiment, the whole simulation device also comprises a quick-opening door moving device, which can realize quick removal or alignment of the sealing door of the container tank 1; the quick door opening moving device comprises a moving trolley 1-3, a guide rail 1-5 and a motor 1-11; the guide rail 1-5 is fixed on the base 1-1; the movable trolley 1-3 is arranged on the guide rail 1-5, the motor 1-11 is arranged on the trolley 1-3, the movable trolley 1-3 can do linear motion on the guide rail 1-5 under the drive of the motor 1-11, and the motion direction is parallel to the installation direction of the sealing door, namely parallel to the axial direction of the flange plate 1-13; the top end of the movable trolley 1-3 is connected with the flange plate 1-13.
As a further improvement to the above embodiment, the quick door opening moving device further comprises a guard bar 1-10, wherein the guard bar 1-10 is fixed on the base 1-1 and is arranged around the moving trolley 1-3, so as to protect the moving trolley from being injured by an operator during movement.
As a further improvement to the above embodiment, the whole simulation device further comprises an image acquisition device, which can realize image acquisition in the whole explosion test process, and the image acquisition device comprises a high-speed camera 4, a computer 5 and an LED lamp 7; the high-speed camera 4 is arranged at the outer end of the container tank 1 and is connected with the computer 5, and the computer 5 stores images shot by the high-speed camera 4; the container tank 1 is provided with an observation window for shooting by the high-speed camera 4; the number of the LED lamps 7 is set at different positions in the container can 1 as needed. Further, the observation window may be installed on the sealing door of the container 1, or may be disposed at different positions on the cavity of the container 1, so as to perform shooting observation at different positions.
Further, a control cabinet 8 is arranged outside the whole simulation device and is mainly used for controlling power supply of all devices, opening and closing of the quick-opening door moving trolley 1-3, locking and releasing of the rotary clamp 1-4, starting and closing of the vacuum pump set 3, opening and closing of the air compressor 11, opening and closing of the LED projection lamp 7 and the like.
When in operation, the explosion source device 2 is placed in the box body 6, the box body 6 is filled with the filler 9 of quartz sand or soil body, and the glass cover 2-1 is covered; starting a control cabinet to supply power for each device, starting a first air compressor 11, and preparing for locking the rotary clamp 1-4; starting a mobile trolley 1-3, moving a flange plate 1-13 to a port of a container tank 1, locking the flange plate 1-13 by using a rotary clamp 1-4, starting an LED lamp 7, and installing a high-speed camera 4 in place; starting a first vacuum pump 3 to vacuumize the container tank 2, starting a second air compressor 2-20 or a second vacuum pump 2-21 to charge or pump air to the glass cover 2-1 when the required vacuum degree is reached, and closing an electromagnetic valve 2-11 when the specified pressure value is reached; simultaneously starting the detonators 2-9 and the high-speed camera 4, and recording the experimental process; after the experiment is finished, a first vacuum pump air release valve is opened, when the internal and external air pressures of the container tank 1 are balanced, the container tank 1 is opened, and explosion experiment results such as pit forming radius, volume and the like are recorded. Meanwhile, the length of the spiral flexible explosion wire 2-2 in the glass cover 2-1 can be adjusted according to test requirements.
Fig. 5 (a-h) and fig. 6 are respectively a picture obtained by a camera in an explosion simulation process after filling quartz sand and a picture of an explosion pit simulation test result, and it can be seen that the explosion effect simulation device of the invention can effectively record the phenomenon in the explosion process, and can simulate the phenomena of underground nuclear explosion pit formation and loosening bulge in the range of 0.1-100 kilotons and the burial depth of 20-400 m by adjusting the pressure in the glass cover 2-1 and the vacuum degree in the container tank 1, and can be used for experimental study of engineering explosion effect and prediction and other scientific problems.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art to which the invention pertains will appreciate that numerous modifications, combinations, and adaptations of the invention can be made without departing from its spirit and scope. Accordingly, the scope of the invention is defined by the appended claims.
Claims (8)
1. The large-equivalent underground shallow-buried explosion effect simulation device comprises a base (1-1), a container tank (1), a first vacuumizing device and an explosion source device (2), and is characterized in that the explosion source device (2) comprises a glass cover (2-1), an explosion fuse (2-2), a steel pipe (2-3), a sealing plug (2-4), an electric detonator (2-6), an exploder (2-9) and an air pressure adjusting device;
the base (1-1) is used as a supporting component of the whole simulation device and is arranged at the bottommost end of the whole device; the container tank (1) is arranged at one end of the base (1-1); the first vacuumizing device is connected with the container tank (1) through a pipeline; the glass cover (2-1) and the electric detonator (2-6) are both positioned in the container tank (1), the bottom end of the glass cover (2-1) is sealed by the sealing plug (2-4), the detonating cord (2-2) is positioned in the glass cover (2-1), the detonating cord (2-2) penetrates out of the sealing plug (2-4) by the steel tube (2-3), and the bottom end of the steel tube (2-3) is sealed; the detonating cord (2-2) is connected with the conical end of the electric detonator (2-6) through a first connecting piece (2-7); the other end of the electric detonator (2-6) is connected with an exploder (2-9) outside the container tank (1); the bottom end of the glass cover (2-1) is connected with an air pressure regulating device;
the air pressure regulating device comprises an air needle (2-5), a second connecting piece (2-10), an electromagnetic valve (2-11), a battery (2-12), a switch (2-13), a pressure buffer (2-15), a ball valve (2-16), a pressure gauge (2-17), a second vacuum gauge (2-18), a pressure relief safety valve (2-19), a second air compressor (2-20) and a second vacuum pump (2-21); the air needle (2-5) penetrates through the sealing plug (2-4) to be connected with the glass cover (2-1), the air needle (2-5) is connected with the electromagnetic valve (2-11) through the second connecting piece (2-10), and the other end of the electromagnetic valve (2-11) is connected with the pressure buffer (2-15); the second air compressor (2-20), the second vacuum pump (2-21), the pressure gauge (2-17) and the second vacuum gauge (2-18) are connected with the pressure buffer (2-15) through ball valves (2-16), and a pressure release safety valve (2-19) is further arranged on the pressure buffer (2-15); the battery (2-12) is connected with the electromagnetic valve (2-11) through the switch (2-13), and the battery (2-12) is used for powering on and powering off the electromagnetic valve (2-11) through the switch (2-13);
the first vacuumizing device comprises a first vacuum pump (3) and a first vacuum gauge (10); the first vacuum pump and the first vacuum gauge (10) are connected with the container tank (1).
2. The large-equivalent subsurface shallow explosion effect simulation device according to claim 1, wherein the electric detonator (2-6) and the first connecting piece (2-7) are installed in the protective cover (2-8).
3. The large-equivalent underground shallow explosion effect simulation device according to claim 1, wherein one end of the detonating cord (2-2) positioned in the glass cover (2-1) is screwed into a spiral shape.
4. The large-equivalent underground shallow explosion effect simulation device according to claim 1, further comprising an automatic sealing device, wherein the automatic sealing device comprises a rotary clamp (1-4) and a telescopic rod; two ends of the outer circle of the rotary clamp (1-4) are respectively connected with a telescopic rod, and the other ends of the telescopic rods are fixed on the base (1-1); wedge blocks (1-16) are uniformly arranged on the inner circumference of the rotary clamp (1-4) and the outer circumference of the flange plate (1-13) at intervals, and the inclination directions of the wedge blocks (1-16) on the rotary clamp (1-4) are opposite to those of the wedge blocks (1-16) on the flange plate (1-13).
5. The high equivalent weight subsurface blast effect simulation device according to claim 4, wherein said telescopic rod is a hydraulic telescopic rod or a pneumatic telescopic rod.
6. The large-equivalent underground shallow explosion effect simulation device according to claim 1, further comprising a quick door opening moving device, wherein the quick door opening moving device comprises a moving trolley (1-3), a guide rail (1-5) and a motor (1-11); the guide rail (1-5) is fixed on the base (1-1); the movable trolley (1-3) is arranged on the guide rail (1-5), the motor (1-11) is arranged on the movable trolley (1-3), and the movable trolley (1-3) moves linearly on the guide rail (1-5) under the drive of the motor (1-11), and the movement direction is parallel to the axial direction of the flange plate 1-13; the top end of the movable trolley (1-3) is connected with the flange plate (1-13).
7. The large-equivalent subsurface shallow explosion effect simulation device according to claim 1, further comprising an image acquisition device, wherein the image acquisition device comprises a high-speed camera (4), a computer (5) and an LED lamp (7); the LED lamp (7) is positioned in the container tank (1), the high-speed camera (4) is arranged at the outer end of the container tank (1) and is connected with the computer (5), and the computer (5) stores images shot by the high-speed camera (4); the container tank (1) is provided with an observation window.
8. The high equivalent weight subsurface blast effect simulation device as set forth in claim 1, wherein said glass cover (2-1) is a spherical, cylindrical, polygonal or other shaped cavity structure.
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