CN115903007B - Three-dimensional earthquake physical simulation data acquisition device - Google Patents
Three-dimensional earthquake physical simulation data acquisition device Download PDFInfo
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- CN115903007B CN115903007B CN202211687133.1A CN202211687133A CN115903007B CN 115903007 B CN115903007 B CN 115903007B CN 202211687133 A CN202211687133 A CN 202211687133A CN 115903007 B CN115903007 B CN 115903007B
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- 238000004088 simulation Methods 0.000 title claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 11
- 230000000670 limiting effect Effects 0.000 claims description 17
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 13
- 230000003139 buffering effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The embodiment of the invention discloses a three-dimensional earthquake physical simulation data acquisition device, which comprises acquisition equipment, a base for installing the acquisition equipment, and damping fixing equipment arranged in the base and deviating from one end of the acquisition equipment; the damping fixing equipment comprises a plurality of mounting upright posts connected to the base, and a swinging damping structure which is arranged in the mounting upright posts in a swinging manner; and the installation upright post is internally provided with a containing cavity, at least part of the containing cavity is outwards protruded to form a middle section with the diameter larger than that of the front section and/or the rear section, and the swing cushioning structure at least comprises a swing body capable of being located in the middle section in a swinging manner. Through the design, the problem that installation equipment for installing a three-dimensional earthquake physical simulation data acquisition device in the prior art easily shakes due to vibration, so that the conducted earthquake waves are buffered to a certain extent, and the accuracy of simulation data acquisition is poor is solved.
Description
Technical Field
The embodiment of the invention relates to the technical field of seismic data acquisition, in particular to a three-dimensional seismic physical simulation data acquisition device.
Background
The earthquake physical simulation technology is a forward modeling technology for simulating the propagation rule of earthquake waves in an actual stratum, and by manufacturing a physical model with simplified actual stratum in a laboratory, the model is excited and received by utilizing ultrasonic waves to study the propagation rule of an elastic wave field in a model medium. By the technology, the correctness of the elastic wave theory of various mediums can be checked, and the development of the elastic wave theory is promoted; the design of an observation system can be optimized, and better effect of field seismic exploration data is ensured.
At present, when the three-dimensional earthquake physical simulation data acquisition device simulates an earthquake, the bottom support used for the support device can shake together, so that the effect of transmitting and buffering earthquake waves is achieved, and the accuracy of earthquake simulation data acquisition is reduced.
Disclosure of Invention
Therefore, the embodiment of the invention provides a three-dimensional earthquake physical simulation data acquisition device, which aims to solve the problems that in the prior art, installation equipment for installing the three-dimensional earthquake physical simulation data acquisition device is easy to shake due to vibration, so that conducted earthquake waves are buffered to a certain extent, and the accuracy of simulation data acquisition is poor.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
in one aspect of the embodiment of the invention, a three-dimensional earthquake physical simulation data acquisition device is provided, which comprises acquisition equipment, a base for installing the acquisition equipment, and damping fixing equipment arranged in the base and away from one end of the acquisition equipment; wherein,
the damping fixing equipment comprises a plurality of mounting upright posts connected to the base and a swinging damping structure which is arranged in the mounting upright posts in a swinging manner; and, in addition, the method comprises the steps of,
the installation stand is internally provided with a containing cavity, the containing cavity is provided with a middle section, at least part of which protrudes outwards to form the middle section, the diameter of the middle section is larger than that of the front section and/or the rear section, and the swing buffering structure at least comprises a swinging body which is positioned in the middle section in a swinging manner.
As a preferred scheme of the invention, the mounting column comprises an upper support tube, a box body and a lower support tube which are sequentially connected and formed from being close to the base, the outer diameter of the box body is larger than that of the upper support tube and that of the lower support tube, the accommodating cavity comprises a front section, a middle section and a rear section which are sequentially arranged, the front section is positioned in the upper support tube, the middle section is positioned in the box body, and the rear section is positioned in the lower support tube.
As a preferable scheme of the invention, the swing damping structure comprises an elastic installation part positioned at the front section, a swing rope is connected to the elastic installation part in an extending way, and the swing body is connected to one end of the swing rope far away from the elastic installation part;
the elastic mounting part at least comprises a mounting column used for being connected with the swinging rope and an elastic reset element connected between the mounting column and the inner wall of the upper supporting tube.
As a preferable scheme of the invention, the elastic mounting part comprises an upper limit disc and a lower limit disc which are arranged in parallel with the section of the front section, the upper limit disc and the lower limit disc are sequentially arranged along the axial direction of the front section, the mounting column is positioned between the upper limit disc and the lower limit disc, a first opening with the diameter smaller than that of the mounting column is formed on the lower limit disc, and the swinging rope penetrates through the first opening;
the elastic reset elements are at least one group, and each group of elastic reset elements are symmetrically arranged on two sides of the mounting column along the radial direction of the front section;
and a buffer sleeve is sleeved on the outer surface of the mounting column.
As a preferable mode of the invention, an extrusion section is formed between the mounting column and the upper support tube, a through hole communicated with the outside is formed on the side wall of the upper support tube with the extrusion section, and a plurality of communicating bent tubes communicated with the extrusion section and the outside are communicated and connected on the upper limit plate;
the plurality of communicating elbows are arranged at intervals along the circumferential direction of the upper limit disc, and the communicating elbows are also provided with screens.
As a preferred aspect of the present invention, a plurality of elastic buffer assemblies are disposed in the case along the circumferential direction and toward the swinging body, and the elastic buffer assemblies are used for at least partially counteracting kinetic energy generated by the swinging of the swinging body.
As a preferred solution of the present invention, each elastic buffer assembly includes a mounting seat fixedly mounted on an inner wall of the box, a sliding barrel connected to the mounting seat and extending away from the box, a sliding block movably disposed on the sliding barrel along an extending direction of the sliding barrel, and a guide rod disposed in the sliding block and away from one end of the mounting seat, and a baffle plate disposed outside the sliding barrel is disposed at one end of the guide rod away from the mounting seat; wherein,
the sliding block is connected with the sliding cylinder through a spring.
As a preferred embodiment of the present invention, a conical head with an end formed as a tip is further connected to the bottom of the lower support tube.
As a preferable scheme of the invention, an annular limiting cushioning component is also arranged on the inner wall of the box body along the circumferential direction, and the limiting cushioning component is positioned below the elastic cushioning component; wherein,
the limiting and cushioning component at least comprises an annular limiting ring and a plurality of elastic impact blocks which are arranged on the inner wall of the limiting ring and extend towards the center of the box body.
As a preferable scheme of the invention, the elastic impact block comprises a connecting rod inserted in the limit ring and an impact body connected to the end part of the connecting rod, wherein the impact body is formed into a multi-layer buffer cushion block, and the area of the multi-layer buffer cushion block is gradually increased from one end close to the connecting rod to one end far away from the connecting rod.
Embodiments of the present invention have the following advantages:
1) Based on the arrangement of a plurality of mounting columns, the base and the acquisition equipment arranged on the base can be firmly arranged in a manner of burying the mounting columns into the ground, so that the accuracy of acquired simulation data can be improved by the vibration of the mounting columns along with the ground during the simulation of an earthquake;
2) Based on the setting of the inside swing bradyseism structure of installation stand, reduce effectively and simulate the earthquake in-process, the unnecessary hedging of installation stand rocks, reduces the cushioning effect of the vibrations of conduction to the base to improve holistic accuracy of the data of gathering better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.
FIG. 1 is a schematic structural diagram of a three-dimensional seismic physical simulation data acquisition device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another three-dimensional seismic physical simulation data acquisition device according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
FIG. 4 is an enlarged view of a portion B of FIG. 1;
FIG. 5 is a top view of a spacing cushioning assembly according to an embodiment of the present invention;
fig. 6 is a schematic partial structure of a limiting cushioning member according to an embodiment of the present invention.
In the figure:
1-a base; 2-upper support tube; 3-connecting bent pipes; 4-swinging ropes; 5-swinging body; 6, a box body; 7-a lower support tube; 8-screening; 9-through holes; 10-a first opening; 11-a lower limit plate; 12-a buffer sleeve; 13-an elastic return element; 14-a second opening; 15-mounting posts; 16-an upper limit plate; 17-a slider; 18-a guide rod; 19-a baffle; 20-extrusion section; 21-a spring; 22-slide cylinder; 23-limiting rings; 24-elastic impact block; 25-mounting seats; 26-cone head; 27-connecting rods; 28-striker.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 to 6, the present invention provides a three-dimensional seismic physical simulation data acquisition device, which comprises an acquisition device, wherein the acquisition device is installed on a base 1, and further comprises: a plurality of upper support pipes 2, wherein the top parts of the upper support pipes 2 are fixedly connected with the bottom surface of the base 1; the top of the cylindrical box body 6 is fixedly connected with the bottom of the upper supporting tube 2; the lower end of the lower supporting tube 7 is fixedly connected with the conical head 26, and the top of the lower supporting tube 7 is fixedly connected with the bottom of the box body 6; and the swing damping structure is fixedly arranged in the upper supporting tube 2. It should be noted that, the upper support tube 2, the box 6 and the lower support tube 7 may be formed as a unitary structure, so that the structure is relatively more stable, and a cavity may be formed therein.
The swing cushioning structure includes: the edge of the upper limit disc 16 is fixedly connected with the inner wall of the upper support tube 2; the edge of the lower limiting disc 11 is fixedly connected with the inner wall of the upper supporting tube 2, and a first opening 10 is formed in the center of the lower limiting disc 11; the mounting column 15 is positioned between the upper limit disc 16 and the lower limit disc 11; the swinging rope 4 (steel wire rope materials can be adopted), the upper end of the swinging rope 4 is positioned in the first opening 10, and the upper end of the swinging rope 4 is fixedly connected with the bottom of the mounting column 15; the swinging body 5 (can be in a sphere structure), the swinging body 5 is positioned in the box body 6, and the swinging body 5 is fixedly connected with the lower end of the swinging rope 4; the buffer sleeve 12 is fixedly sleeved on the mounting column 15; a plurality of elastic reset elements 13 (which can be of spring structures or elastic sheet structures), wherein the elastic reset elements 13 are circumferentially arranged along the buffer sleeve 12, one end of each elastic reset element 13 is fixedly connected with the buffer sleeve 12, and the other end of each elastic reset element 13 is fixedly connected with the inner wall of the upper supporting tube 2; the plurality of communicating bent pipes 3 are arranged along the circumferential direction of the upper limit disc 16, a plurality of second openings 14 are formed in the edge of the upper limit disc 16 along the circumferential direction of the upper limit disc 16, the lower ends of the communicating bent pipes 3 are fixedly connected with the second openings 14, and the upper ends of the communicating bent pipes 3 penetrate through the upper support tube 2 and extend to the outer side of the upper support tube 2; the through holes 9 are formed in the upper support tube 2 along the circumferential direction of the upper support tube 2, and the through holes 9 are positioned between the upper limit disc 16 and the lower limit disc 11; the screen 8, screen 8 sets firmly at the intercommunication return bend 3 top.
Working principle: burying the upper support tube 2, the box body 6 and the lower support tube 7 into the ground to enable the base 1 to be attached to the ground surface; when the upper support tube 2 and the lower support tube 7 shake, the swinging body 5 swings in the box 6 to reduce the shake amplitude of the upper support tube 2 and the lower support tube 7, for example, when the upper support tube 2 and the lower support tube 7 shake leftwards, the swinging body 5 swings rightwards, the swinging body 5 drives the mounting column 15 to slide rightwards through the swinging rope 4 to compress the elastic reset element 13 on the right side, so that the mounting column 15 applies a rightwards force to the upper support tube 2 to limit the shake of the upper support tube 2 and the lower support tube 7 leftwards, when the mounting column 15 slides between the upper limit disc 16 and the lower limit disc 11, the mounting column 15 pulls the elastic reset element 13 to play a buffering role, the mounting column 15 is prevented from compressing soil between the upper limit disc 16 and the lower limit disc 11 when the mounting column 15 slides, the soil is extruded to the outer side of the upper support tube 2 through the through hole 9, the external soil can further play a buffering effect, and the external soil can continuously enter the extrusion interval 20 between the upper limit disc 16 and the lower limit disc 11 through the communication elbow 3, so that the clearance loss caused by the soil extrusion between the upper limit disc 16 and the lower limit disc 11 is compensated.
Example 2
As shown in fig. 1 to 6, in the case where the other portions are the same as in embodiment 1, a further improvement of this embodiment compared with embodiment 1 is that: the inner wall of the box body 6 is provided with a plurality of elastic buffer components along the circumferential direction of the box body 6; the elastic buffer assembly includes: the mounting seat 25 is fixedly connected with the box body 6; the sliding cylinder 22, the sliding cylinder 22 is fixedly connected with the mounting seat 25; a slide block 17, the slide block 17 is slidingly connected in the slide cylinder 22; the spring 21, the spring 21 locates in slide tube 22, one end of the spring 21 is fixedly connected with slide block 17, another end of the spring 21 is fixedly connected with inner wall of slide tube 22; the guide rod 18, one end of the guide rod 18 is fixedly connected with the sliding block 17, and the other end of the guide rod 18 extends out of the sliding cylinder 22; and the baffle 19, and one end of the guide rod 18 extending to the outside of the slide cylinder 22 is fixedly connected with the baffle 19.
Working principle: when the swing amplitude of the swing body 5 is overlarge, the swing body 5 impacts the baffle plate 19, and the baffle plate 19 compresses the spring 21 through the guide rod 18 and the sliding block 17 to play a role in buffering and limiting.
Example 3
As shown in fig. 1 to 6, in the case where the other portions are the same as in embodiment 2, a further improvement of this embodiment compared with embodiment 2 is that: the inner wall of the box body 6 is also provided with an annular limiting cushioning component along the circumferential direction, and the limiting cushioning component is positioned below the elastic cushioning component. And the spacing and cushioning component comprises an annular spacing ring 23 and a plurality of elastic impact blocks 24 which are arranged on the inner wall of the spacing ring 23 and extend towards the center of the box body 6. The elastic impact block 24 comprises a connecting rod 27 embedded in the limit ring 23 and an impact body 28 connected to the end of the connecting rod 27, wherein the impact body 28 is formed into a multi-layer buffer cushion block, and the area of the multi-layer buffer cushion block gradually increases from one end close to the connecting rod 27 to one end far away from the connecting rod 27.
Working principle: when the swing amplitude of the swing body 5 is further increased, the swing body continuously collides with the baffle 19 and further compresses the spring 21, when the set compression amplitude is reached, the swing body 5 collides with the elastic impact block 24, the elastic impact block 24 can further provide reverse thrust, and the reduction of the service life of the whole elastic buffer assembly caused by the overlarge swing amplitude of the swing body 5 is avoided. Meanwhile, since the swing direction of the swing body 5 has a certain deviation and the like, the swing direction cannot be accurately controlled, the elastic impact block 24 is further arranged into a plurality of layers, and the area is gradually reduced, so that the stress of the elastic impact block can be gradually conducted to the center, the overlarge contact area of the outermost side of the elastic impact block 24 is avoided, the overlarge contact area is directly connected to the connecting rod 27, and the connecting rod 27 is easily broken when the stress is slightly deviated.
Example 4
In the actual use process, the method specifically comprises the following operation processes:
step one: burying the upper support tube 2, the box body 6 and the lower support tube 7 into the ground to enable the base 1 to be attached to the ground surface;
step two: when the upper support tube 2 and the lower support tube 7 shake, the swinging body 5 swings in the box body 6 so as to reduce the shake amplitude of the upper support tube 2 and the lower support tube 7;
step three: as the mounting post 15 slides between the upper limit plate 16 and the lower limit plate 11, the mounting post 15 pulls the elastic reset element 13 to buffer, and the mounting post 15 compresses the soil between the upper limit plate 16 and the lower limit plate 11, extrudes the soil through the through hole 9 to further buffer, and the external soil enters between the upper limit plate 16 and the lower limit plate 11 through the communicating elbow 3 to supplement the soil between the upper limit plate 16 and the lower limit plate 11.
Through the arrangement, the invention has the following beneficial effects:
1. according to the invention, the upper support tube 2, the box body 6 and the lower support tube 7 are buried underground, so that the upper support tube 2, the box body 6 and the lower support tube 7 can be effectively stabilized, the base 1 and acquisition equipment on the base 1 are further stabilized, the problem of seismic wave buffering caused by shaking the upper support tube 2, the box body 6 and the lower support tube 7 together during earthquake simulation is prevented, and the accuracy of earthquake simulation data acquisition is effectively improved.
2. The invention is innovatively provided with the swing cushioning structure which is arranged in the upper support tube 2, so that the swing of the upper support tube 2, the box body 6 and the lower support tube 7 can be further reduced.
3. According to the invention, the elastic buffer assembly is arranged, so that the limit and buffer effects on the swinging body 5 can be achieved when the swinging amplitude of the swinging body 5 is overlarge, and the box body 6 is prevented from being damaged by the swinging body 5.
4. The invention innovatively uses the soil for buffering the impact force generated when the mounting column 15 slides, prevents the elastic force and buffering effect of the elastic reset element 13 from being reduced due to the pressure bearing of the elastic reset element 13, and the mounting column 15 compresses the soil and extrudes the compressed soil, thereby improving the compactness of the soil around the upper support tube 2 and ensuring that the upper support tube 2 can be more firmly fixed under the ground.
5. The invention further introduces a limiting cushioning component to avoid irreversible damage to the elastic cushioning component caused by further increasing the swing amplitude of the swing body 5.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (6)
1. The three-dimensional earthquake physical simulation data acquisition device comprises acquisition equipment and is characterized by further comprising a base (1) for installing the acquisition equipment and damping fixing equipment arranged at one end, away from the acquisition equipment, of the base (1); wherein,
the damping fixing device comprises a plurality of mounting upright posts connected to the base (1), and a swinging damping structure which is arranged in the mounting upright posts in a swinging manner; and, in addition, the method comprises the steps of,
the installation upright post is internally provided with a containing cavity, at least one part of the containing cavity is outwards protruded to form a middle section with the diameter larger than that of the front section and/or the rear section, and the swing cushioning structure at least comprises a swing body (5) which is positioned in the middle section in a swinging way;
the mounting upright post comprises an upper support tube (2), a box body (6) and a lower support tube (7) which are sequentially connected and formed from being close to the base (1), the outer diameter of the box body (6) is larger than that of the upper support tube (2) and that of the lower support tube (7), the accommodating cavity comprises a front section, a middle section and a rear section which are sequentially arranged, the front section is positioned in the upper support tube (2), the middle section is positioned in the box body (6), and the rear section is positioned in the lower support tube (7);
a plurality of elastic buffer components facing the swinging body (5) are arranged in the box body (6) along the circumferential direction, and the elastic buffer components are used for at least partially counteracting the kinetic energy generated by the swinging of the swinging body (5);
an annular limiting cushioning component is arranged on the inner wall of the box body (6) along the circumferential direction, and the limiting cushioning component is positioned below the elastic cushioning component; wherein,
the limiting and cushioning component at least comprises an annular limiting ring (23) and a plurality of elastic impact blocks (24) which are arranged on the inner wall of the limiting ring (23) and extend towards the center of the box body (6);
the elastic impact block (24) comprises a connecting rod (27) which is inserted into the limit ring (23), and an impact body (28) which is connected to the end part of the connecting rod (27), wherein the impact body (28) is formed into a plurality of layers of buffer cushion blocks, and the areas of the buffer cushion blocks in the plurality of layers are gradually increased from one end which is close to the connecting rod (27) to one end which is far away from the connecting rod (27).
2. The three-dimensional earthquake physical simulation data acquisition device according to claim 1, wherein the swinging cushioning structure comprises an elastic installation part positioned at the front section, a swinging rope (4) is connected to the elastic installation part in an extending mode, and the swinging body (5) is connected to one end, far away from the elastic installation part, of the swinging rope (4);
the elastic mounting part at least comprises a mounting column (15) used for being connected with the swinging rope (4), and an elastic reset element (13) connected between the mounting column (15) and the inner wall of the upper supporting tube (2).
3. The three-dimensional seismic physical simulation data acquisition device according to claim 2, wherein the elastic mounting part comprises an upper limit disc (16) and a lower limit disc (11) which are arranged in parallel with the section of the front section, the upper limit disc (16) and the lower limit disc (11) are sequentially arranged along the axial direction of the front section, the mounting column (15) is positioned between the upper limit disc (16) and the lower limit disc (11), a first opening (10) with the diameter smaller than that of the mounting column (15) is formed on the lower limit disc (11), and the swinging rope (4) is arranged through the first opening (10);
the elastic reset elements (13) are at least one group, and each group of elastic reset elements (13) are symmetrically arranged on two sides of the mounting column (15) along the radial direction of the front section;
the outer surface of the mounting column (15) is also sleeved with a buffer sleeve (12).
4. A three-dimensional seismic physical simulation data acquisition device according to claim 3, wherein an extrusion section (20) is formed between the mounting column (15) and the upper support tube (2), a through hole (9) communicated with the outside is formed on the side wall of the upper support tube (2) with the extrusion section (20) formed thereon, and a plurality of communicating bent tubes (3) communicated with the extrusion section (20) and the outside are communicated with each other on the upper limit plate (16);
the plurality of communicating elbows (3) are arranged at intervals along the circumferential direction of the upper limit disc (16), and the communicating elbows (3) are also provided with a screen (8).
5. A three-dimensional seismic physical simulation data acquisition device according to claim 1, wherein each elastic buffer assembly comprises a mounting seat (25) fixedly mounted on the inner wall of the box body (6), a sliding barrel (22) connected to the mounting seat (25) and extending away from the box body (6), a sliding block (17) movably arranged on the sliding barrel (22) along the extending direction of the sliding barrel (22), and a guide rod (18) arranged at one end of the sliding block (17) away from the mounting seat (25), and a baffle (19) positioned outside the sliding barrel (22) is further arranged at one end of the guide rod (18) away from the mounting seat (25); wherein,
the sliding block (17) is connected with the sliding cylinder (22) through a spring (21).
6. A three-dimensional seismic physical simulation data acquisition apparatus according to any one of claims 1-4, wherein the bottom of the lower support tube (7) is further connected with a conical head (26) with an end formed as a tip.
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