CN217561173U - Rock-soil mechanics analogue test device - Google Patents
Rock-soil mechanics analogue test device Download PDFInfo
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- CN217561173U CN217561173U CN202220105903.6U CN202220105903U CN217561173U CN 217561173 U CN217561173 U CN 217561173U CN 202220105903 U CN202220105903 U CN 202220105903U CN 217561173 U CN217561173 U CN 217561173U
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Abstract
A rock-soil mechanics simulation test device comprises a test box body, a support, a bottom bearing beam, a top bearing beam, a reaction frame mechanism and a stress loading mechanism, wherein the bottom bearing beam and the top bearing beam are respectively positioned at the bottom and the top of the test device; the test box body and the stress loading mechanism are arranged between the frame enclosed by the counter-force frame mechanism, the bottom bearing beam and the top bearing beam, the side surface of the bottom layer of the test box body is fixedly connected onto the support through bolts, the upper box body is fixedly connected onto main edges of four corners inside the box body through bolts, and the stress loading mechanism is located between the top of the test box body and the top bearing beam. The test device is simple and convenient to mount and dismount, and convenient for test model manufacturing, test monitoring and data acquisition, and is beneficial to improving the flexibility of the rock-soil mechanical simulation test and the accuracy and reliability of the test result.
Description
Technical Field
The utility model relates to a ground mechanics analogue test device belongs to physical model analogue test technical field.
Background
The method is an important method for researching rock-soil mechanics by establishing a test model and carrying out a simulation test, and the establishment of the model and the simulation test usually need to utilize a test device capable of carrying out stress loading.
The existing test device main body mainly adopts a welding mode to assemble the test box body, so that the whole test device is inconvenient to mount, dismount and move; in addition, during testing, stress loading is usually completed together by means of external components, so that the requirements on the layout and space of a laboratory are increased, the complexity and the risk of the test are increased, the flexibility and the operability of the test are greatly limited, and the accuracy and the reliability of the test result are not guaranteed.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a ground mechanics analogue test device, the device installation, dismantlement and removal are convenient, utilize structure itself can form the effect of reaction force when realizing the balanced stress loading from the restraint, improve ground mechanics analogue test's flexibility and maneuverability, guarantee the accuracy and the reliability of test result.
In order to achieve the purpose, the utility model provides a rock-soil mechanics simulation test device, which comprises a support, a bottom bearing beam, a top bearing beam and a counterforce frame mechanism, wherein the support comprises a pair of H-shaped steel I arranged in parallel, a bearing plate is arranged between the pair of H-shaped steel I, and two ends of the bearing plate are respectively and fixedly arranged on the H-shaped steel I at the end where the bearing plate is arranged;
the bottom bearing beam is positioned below the bearing plate and is a pair of H-shaped steels II which are arranged in parallel to the bearing plate, two ends of each H-shaped steel II respectively extend out of the end part of the bearing plate at the end where the H-shaped steel II is positioned, two ends of each H-shaped steel II are respectively provided with a through hole I, and the two through holes at the same end are arranged along the same axis; a first square pipe structure body is sleeved between the first through hole of each second H-shaped steel and the end part of the bearing plate at the end where the first through hole is located, the inner side of the first square pipe structure body is closely matched with the bearing plate at the end where the first square pipe structure body is located, the outer sides of the first square pipe structure bodies at the same end are clamped through a first fastening pin shaft, the first fastening pin shaft is matched with the first through hole at the end where the first fastening pin shaft is located, and the two ends of the first fastening pin shaft respectively extend out of the first through hole at the side and then are in full contact fit with the end face of the first square pipe structure body at the side where the first fastening pin shaft is located;
the top bearing beam is positioned at the top of the device and comprises a pair of H-shaped steel III arranged in parallel with the H-shaped steel II of the bottom bearing beam, the H-shaped steel III and the H-shaped steel II are arranged correspondingly, two ends of each H-shaped steel III are respectively provided with a through hole II corresponding to the through hole I on the same side, and the two through holes II on the same end are arranged coaxially; the two end parts of each H-shaped steel III and the square pipe structure I on the same side are correspondingly sleeved with a square pipe structure II, the outer side of the square pipe structure II on the same side is clamped through a fastening pin shaft II, the fastening pin shaft II is matched with the two through holes II on the end where the fastening pin shaft II is located, and the two ends of the fastening pin shaft II respectively extend out of the through holes II on the side and then are in full contact fit with the two end surfaces of the square pipe structure on the side where the fastening pin shaft II is located;
the square tube structure I and the square tube structure II on the same side are connected through a pair of connecting rods arranged in parallel, the upper ends of the connecting rods are fixedly connected with the lower end face of the square tube structure II, and the lower ends of the connecting rods are fixedly connected with the upper end face of the square tube structure I to form a counterforce frame mechanism;
a test box body mechanism and a stress loading mechanism are arranged among frames enclosed by the reaction frame mechanism, the bottom bearing beam and the top bearing beam; the test box body mechanism comprises a plurality of longitudinally arranged connecting plates and a plurality of box bodies which are sequentially stacked from top to bottom along the connecting plates, each box body is a hollow structure body which is run through from top to bottom, each side surface of the box body is split, and a reserved hole is formed in the box body side of the middle layer; the connecting plates are arranged on the inner main edges formed by the adjacent side surfaces of the box bodies, and the side surfaces of each box body are fixedly connected with the connecting plates on the main edges through bolts; the bottom layer box body is fixedly connected with the upper end face of the bearing plate; the upper end of the top-layer box body is provided with a top cover plate, and the top cover plate is in sliding fit with the inner wall of the box body;
the stress loading mechanism is arranged between the top cover plate and the three lower end faces of each H-shaped steel.
Furthermore, the stress loading mechanism is a hydraulic jack, a cylinder barrel fixing part of the stress loading mechanism is fixedly connected to the top cover plate, and a rod part of the stress loading mechanism faces to the three lower end faces of the H-shaped steel.
Furthermore, top bearing beam supports are arranged between two sides of two ends of the top layer box body and the H-shaped steel III on two sides of the end where the top layer box body is located.
Furthermore, the connecting rod is round steel, and the upper end and the lower end of the connecting rod are respectively connected with the square tube structure II and the square tube structure I through bolts; the box is the cuboid, and the connecting plate is equilateral angle steel, passes through bolted connection between box and the connecting plate.
Furthermore, four end faces of the first square tube structure body and the second square tube structure body are steel plates, a welding mode of beveling and full welding is adopted at the joint of the end faces, and equilateral reinforcing angle steels are welded on the outer sides of four corners; and the center of the upper end surface of the first square pipe structure body and the center of the lower end surface of the second square pipe structure body are respectively provided with a connecting hole for penetrating a connecting rod.
The square tube structure body I square tube structure body II the middle part of each side of box adopts transparent material of the same size to replace according to the experimental needs.
Furthermore, the bearing plate and the box body are made of channel steel.
The utility model discloses a set up test box body mechanism, support, bottom bearing beam, top bearing beam and counter-force frame mechanism, wherein bottom bearing beam and top bearing beam are located the bottom and the top of whole test device respectively, as bottom bearing end and top bearing end of counter-force frame mechanism, counter-force frame mechanism symmetry sets up in the both ends of bottom bearing beam and top bearing beam to carry out the bolt rigid coupling through the longitudinal tie pole with the bottom bearing beam of homonymy, the tip of top bearing beam; a test box body mechanism and a stress loading mechanism are arranged among frames enclosed by the counterforce frame mechanism, the bottom bearing beam and the top bearing beam, a bottom box body of the test box body mechanism is fixedly connected on the support through bolts, upper box bodies are all connected on a connecting plate of a main edge arranged in the box body through bolts, and the increase or decrease of the number of the box bodies can be conveniently realized according to test requirements; the stress loading mechanism is positioned between the test box body mechanism and the top bearing beam; according to the different actual needs of testers to test model and experimental purpose, under the prerequisite that keeps each partial subassembly structure of device unchangeable and satisfy each subassembly bearing capacity safety, can change this test device installation to the size and the specification of each subassembly of box, it is simple and convenient to dismantle, test model preparation, test monitoring and data acquisition are convenient, the effect of reaction force when structure itself can form the self-restraint and realize balanced stress loading, need not with the help of external component, convenient operation, safety, the flexibility and the maneuverability of geotechnical mechanics analogue test have been improved, the accuracy and the reliability of test result have been guaranteed.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
fig. 2 is a side view of the structure of fig. 1.
In the figure: 1. the device comprises a support 101, H-shaped steel I, 102 and a bearing plate;
2. the device comprises a bottom bearing beam 201, H-shaped steel II 202, through holes I and 203, a square tube structure I and 204 and a fastening pin shaft I;
3. the top bearing beam comprises 301 parts of a top bearing beam, 302 parts of H-shaped steel, 303 parts of a through hole II, 304 parts of a square pipe structure II, 305 parts of a fastening pin shaft II and a top bearing beam support;
4. a reaction frame mechanism 401, a connecting rod;
5. the test box body mechanism comprises a test box body mechanism 501, a connecting plate 502, a box body 503, a reserved hole 504, a main edge 505 and a top cover plate;
6. a stress loading mechanism 601, a hydraulic jack; 7. equilateral angle steel for reinforcement.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, a rock-soil mechanics simulation test device comprises a support 1, a bottom bearing beam 2, a top bearing beam 3 and a reaction frame mechanism 4, wherein the support 1 comprises a pair of H-shaped steel I101 which are arranged in parallel, a bearing plate 102 is arranged between the pair of H-shaped steel I101, and two ends of the bearing plate 102 are respectively and fixedly arranged on the H-shaped steel I101 at the end where the bearing plate is arranged;
the bottom bearing beam 2 is positioned below the bearing plate 102 and is a pair of H-shaped steel II 201 arranged parallel to the bearing plate, two ends of the H-shaped steel II respectively extend out of the end part of the bearing plate 102 at the end where the H-shaped steel II is positioned, two ends of each H-shaped steel II 201 are respectively provided with a through hole I202, and the two through holes I202 at the same end are coaxially arranged; a square tube structure body I203 is sleeved between the through hole I202 of each H-shaped steel II 201 and the end part of the bearing plate 102 at the end where the H-shaped steel II is located, the inner side of the square tube structure body I203 is tightly matched with the bearing plate 102 at the end where the square tube structure body I is located, the outer sides of the square tube structure bodies I203 at the same end are clamped through a fastening pin shaft I204, the fastening pin shaft I204 is matched with the two through hole I202 at the end where the fastening pin shaft I is located, and the two ends of the fastening pin shaft I respectively extend out of the through hole I202 at the side where the fastening pin shaft I is located and then are in full contact fit with the end face of the square tube structure body I203 at the side where the fastening pin shaft I is located;
the top bearing beam 3 is positioned at the top of the device and comprises a pair of H-shaped steel third 301 arranged in parallel with the H-shaped steel second 201 of the bottom bearing beam, the H-shaped steel third 301 and the H-shaped steel second 201 are arranged correspondingly, two ends of each H-shaped steel third 301 are respectively provided with a through hole second 302 corresponding to the through hole first 202 on the same side, and the two through holes second 302 on the same end are arranged coaxially; the end parts of the two ends of each H-shaped steel III 301 and the square pipe structure I203 on the same side are correspondingly sleeved with a square pipe structure II 303, the outer sides of the square pipe structure II 303 on the same end are clamped through a fastening pin shaft II 304, the fastening pin shaft II 304 is matched with the two through holes II 302 on the end where the fastening pin shaft II is located, and the two ends of the fastening pin shaft II respectively extend out of the through holes II 302 on the side where the fastening pin shaft II is located and then are in full contact fit with the end surface of the square pipe structure II 303 on the side where the fastening pin shaft II is located;
the square tube structure I203 and the square tube structure II 303 on the same side are connected through a pair of connecting rods 401 arranged in parallel, the upper ends of the connecting rods 401 are fixedly connected with the lower end face of the square tube structure II 303, and the lower ends of the connecting rods are fixedly connected with the upper end face of the square tube structure I203 to form a reaction frame mechanism 4;
a test box body mechanism 5 and a stress loading mechanism 6 are arranged among frames enclosed by the reaction frame mechanism 4, the bottom bearing beam 2 and the top bearing beam 3; the test box body mechanism 5 comprises a plurality of longitudinally arranged connecting plates 501 and a plurality of box bodies 502 which are sequentially stacked from top to bottom along the connecting plates 501, each box body 502 is a hollow structure body which is run through from top to bottom, each side surface of the box body is split, and a preformed hole 503 is formed in the side surface of the box body in the middle layer; each connecting plate 501 is respectively arranged on an inner main ridge 504 formed by each adjacent side surface of the box body, and each side surface of each box body 502 is fixedly connected with the connecting plate 501 on the main ridge where the side surface is positioned through a bolt; the bottom layer box body is fixedly connected with the upper end surface of the bearing plate 102; the upper end of the top layer box body is provided with a top cover plate 505, and the top cover plate 505 is in sliding fit with the inner wall of the box body;
the stress loading mechanism 6 is arranged between the top cover plate 505 and the lower end surface of each H-shaped steel III 301.
In a preferred embodiment, the stress applying mechanism 6 is a hydraulic jack 601, the cylinder fixing part of which is fixedly connected to the top cover plate 505, and the rod part of which faces the lower end surface of the H-shaped steel three 301.
In order to further improve the stability of the top bearing beam 3, top bearing beam brackets 305 are arranged between two sides of the top layer of the test box and the H-shaped steel III 301 on two sides of the top layer of the test box.
As a preferred embodiment, the connecting rod 401 is a round steel, and the upper end and the lower end of the connecting rod are respectively connected with the second square pipe structural body 303 and the first square pipe structural body 203 through bolts; the box body 502 is a cuboid, the connecting plate 501 is equilateral angle steel, and the box body 502 is connected with the connecting plate 501 through bolts.
In order to further improve the strength of the first square tube structure 203 and the second square tube structure 303, the four end faces of the first square tube structure 203 and the second square tube structure 303 are all steel plates, the joints of the end faces adopt a beveling and full-welding mode, equilateral reinforcing angle steels 7 are welded on the outer sides of four corners, and the joints of the end faces adopt a full-welding mode; and the centers of the upper end surface of the first square pipe structure body 203 and the lower end surface of the second square pipe structure body 303 are respectively provided with a connecting hole for penetrating a bolt.
In order to facilitate monitoring of the test model inside the box body 502 during or after the test, the middle parts of the side surfaces of the box body 502 are replaced by transparent materials with the same size according to the test requirement.
In a preferred embodiment, the bearing plate 102 and the box body 502 are made of channel steel.
The first embodiment is as follows:
in this embodiment, the internal space of the case of the test apparatus is 1200mm × 900mm × 1000mm, and the test apparatus for simulating the vertical stress load by applying a stress to the upper side is taken as an example.
Installing a support, a test box body, a bottom bearing beam, square pipe structural bodies on two sides and fastening pin shafts of the test device in place, manufacturing a test model in the test box body with four layers according to test design requirements, and leading out wires or connecting wires of test components embedded in the model from reserved holes on two sides of the box body;
after the test model is manufactured, scientific maintenance is carried out until the test model meets the test conditions;
place top bearing beam on the support, the square tubular construction body and the mounting pin axle of both sides are installed and are targeted in place, connect the connecting rod between bottom bearing beam and top bearing beam, and reaction frame mechanism installs the connecting rod that targets in place and carries out stress loading to test device: after the top of the model is leveled, a steel plate with the thickness of 1100mm multiplied by 800mm and the thickness of 10mm is used as a top cover plate and is placed above the model, then four or six hydraulic jacks are symmetrically placed on the top cover plate in front, back, left and right directions, and when the hydraulic jacks work, hydraulic columns abut against the lower end surfaces of the three H-shaped steels, the hydraulic jacks are started and set as loading stress required by the test;
dismantling a test device: after the test is completed, firstly, the hydraulic jack is removed, secondly, the square pipes and the fastening pin shafts on two sides of the connecting rod and the top bearing beam are removed, and finally, four side faces of the box body are removed, so that the test model is completely exposed, the next test result observation record is carried out, finally, the model which has completed the test is cleared, and the rest of the test device parts can not be detached, so that the subsequent model test is convenient.
Claims (7)
1. A rock-soil mechanics simulation test device is characterized by comprising a support (1), a bottom bearing beam (2), a top bearing beam (3) and a reaction frame mechanism (4), wherein the support (1) comprises a pair of H-shaped steel I (101) which are arranged in parallel, a bearing plate (102) is arranged between the pair of H-shaped steel I (101), and two ends of the bearing plate (102) are respectively and fixedly arranged on the H-shaped steel I (101) at the end where the bearing plate is arranged;
the bottom bearing beam (2) is positioned below the bearing plate (102), is a pair of H-shaped steel II (201) arranged in parallel to the H-shaped steel I (101), two ends of the H-shaped steel II respectively extend out of the end part of the bearing plate (102) at the end where the H-shaped steel II is positioned, two ends of each H-shaped steel II (201) are respectively provided with a through hole I (202), and the two through holes I (202) at the same end are coaxially arranged; a first square pipe structure body (203) is sleeved between the first through hole (202) of each second H-shaped steel (201) and the end part of the bearing plate (102) at the end where the first through hole is located, the inner side of the first square pipe structure body (203) is tightly attached and matched with the bearing plate (102) at the end where the first through hole is located, the outer sides of the first square pipe structure bodies (203) at the same end are clamped through a first fastening pin shaft (204), the first fastening pin shaft (204) is matched with the first through hole (202) at the end where the first through hole is located, and the two ends of the first fastening pin shaft (204) extend out of the first through hole (202) at the side and then are in full contact and matching with the end surface of the first square pipe structure body (203) at the side where the first through hole is located;
the top bearing beam (3) is positioned at the top of the device and comprises a pair of H-shaped steel III (301) which is arranged in parallel with the H-shaped steel II (201) of the bottom bearing beam (2), the H-shaped steel III (301) and the H-shaped steel II (201) are correspondingly arranged, two ends of each H-shaped steel III (301) are respectively provided with a through hole II (302) corresponding to the through hole I (202) at the same side, and the two through holes II (302) at the same end are coaxially arranged; the end parts of the two ends of each H-shaped steel III (301) are sleeved with a square pipe structure II (303) correspondingly to the square pipe structure I (203) on the same side, the outer sides of the square pipe structure II (303) on the same end are clamped through a fastening pin shaft II (304), the fastening pin shaft II (304) is matched with the two through holes II (302) on the end where the fastening pin shaft II is located, and the two ends of the fastening pin shaft II (304) respectively extend out of the through holes II (302) on the side where the fastening pin shaft II is located and then are in full contact fit with the end face of the square pipe structure II (303) on the side where the fastening pin shaft II is located;
the square tube structure I (203) and the square tube structure II (303) on the same side are connected through a pair of connecting rods (401) arranged in parallel, the upper ends of the connecting rods (401) are fixedly connected with the lower end face of the square tube structure II (303), and the lower ends of the connecting rods are fixedly connected with the upper end face of the square tube structure I (203), so that a reaction frame mechanism (4) is formed;
a test box body mechanism (5) and a stress loading mechanism (6) are arranged among frames enclosed by the reaction frame mechanism (4), the bottom bearing beam (2) and the top bearing beam (3); the test box body mechanism (5) comprises a plurality of longitudinally arranged connecting plates (501) and a plurality of box bodies (502) which are sequentially stacked from top to bottom along the connecting plates (501), each box body (502) is a hollow structure body which is through up and down, each side surface of the box body is split, and a reserved hole (503) is formed in the side surface of the box body in the middle layer; the connecting plates (501) are arranged on internal main ridges (504) formed by adjacent side surfaces of the box bodies (502), and each side surface of each box body (502) is fixedly connected with the connecting plate (501) of the section where the box body is located through a bolt; the bottom layer box body is fixedly connected with the upper end surface of the bearing plate (102); the upper end of the top-layer box body is provided with a top cover plate (505), and the top cover plate (505) is in sliding fit with the inner wall of the box body;
the stress loading mechanism (6) is arranged between the top cover plate (505) and the lower end face of each H-shaped steel III (301).
2. The geotechnical simulation test device according to claim 1, wherein the stress loading mechanism (6) is a hydraulic jack (601), a cylinder barrel fixing part of the hydraulic jack is fixedly connected to the top cover plate (505), and a rod part of the hydraulic jack is towards the lower end face of the H-shaped steel III (301).
3. The geotechnical simulation test device according to claim 1 or 2, wherein top bearing beam supports (305) are arranged between two sides of two ends of the top box (502) and the H-shaped steel III (301) on two sides of the end where the top box is located.
4. The geotechnical mechanical simulation test device according to claim 3, wherein the connecting rod (401) is round steel, and the upper end and the lower end of the connecting rod are respectively connected with the second square tube structure (303) and the first square tube structure (203) through bolts; the box body (502) is a cuboid, the connecting plate (501) is equilateral angle steel, and the box body (502) is connected with the connecting plate (501) through bolts.
5. The geotechnical mechanical simulation test device according to claim 4, wherein four end faces of the first square tube structure (203) and the second square tube structure (303) are all steel plates, the joints of the end faces are welded in a beveling and full-welding mode, and equilateral reinforcing angle steels (7) are welded on the outer sides of four corners; the centers of the upper end face of the first square tube structural body (203) and the lower end face of the second square tube structural body (303) are respectively provided with a connecting hole for penetrating through the connecting rod (401).
6. The geotechnical simulation test device according to claim 5, wherein the middle of each side of the box (502) is replaced by transparent material with the same size according to test requirements.
7. The geotechnical simulation test device according to claim 6, wherein the bearing plate (102) and the box body (502) are made of channel steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220105903.6U CN217561173U (en) | 2022-01-14 | 2022-01-14 | Rock-soil mechanics analogue test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220105903.6U CN217561173U (en) | 2022-01-14 | 2022-01-14 | Rock-soil mechanics analogue test device |
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| CN217561173U true CN217561173U (en) | 2022-10-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115963012A (en) * | 2022-12-29 | 2023-04-14 | 湘潭大学 | Testing device for monitoring deformation rule model of overlying strata of variable-face long stope |
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- 2022-01-14 CN CN202220105903.6U patent/CN217561173U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115963012A (en) * | 2022-12-29 | 2023-04-14 | 湘潭大学 | Testing device for monitoring deformation rule model of overlying strata of variable-face long stope |
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