CN117030485A - Pressurized rock-soil bearing capacity test board and test method thereof - Google Patents

Pressurized rock-soil bearing capacity test board and test method thereof Download PDF

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Publication number
CN117030485A
CN117030485A CN202311095745.6A CN202311095745A CN117030485A CN 117030485 A CN117030485 A CN 117030485A CN 202311095745 A CN202311095745 A CN 202311095745A CN 117030485 A CN117030485 A CN 117030485A
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China
Prior art keywords
cylinder
rock
soil
pressure
hydraulic cylinder
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CN202311095745.6A
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Chinese (zh)
Inventor
王增军
周炳楠
余弦
王根伟
陈小燕
韦柳成
王善烨
王静
罗倩
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Guangxi Natural Resources Vocational And Technical College
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Guangxi Natural Resources Vocational And Technical College
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Application filed by Guangxi Natural Resources Vocational And Technical College filed Critical Guangxi Natural Resources Vocational And Technical College
Priority to CN202311095745.6A priority Critical patent/CN117030485A/en
Publication of CN117030485A publication Critical patent/CN117030485A/en
Pending legal-status Critical Current

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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
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • 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
    • G01N3/02—Details
    • 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
    • G01N3/02—Details
    • G01N3/04—Chucks
    • 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
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • 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
    • G01N2203/003—Generation of the force
    • G01N2203/0042—Pneumatic or hydraulic means
    • G01N2203/0048—Hydraulic means

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention discloses a pressurized rock-soil bearing capacity test board and a test method thereof.A slide rail is arranged at the left side and the right side of the upper end of a base, and a bearing seat for a detachable bearing limit cylinder is connected on the slide rail in a sliding manner; the front side of the inside of the base is provided with an accommodating groove for accommodating the clamping mechanism, and the first hydraulic cylinder is used for driving the clamping mechanism to upwards turn out of the accommodating groove and clamping the limiting cylinder in a positioning seat at the upper end of the rear part of the base; the second hydraulic cylinder is used for driving the pressure head to descend and extend into the limiting cylinder and pressurizing rock and soil in the limiting cylinder; the limiting cylinder and the bearing seat are detachably arranged, so that the use is convenient; the pressure value I and the pressure value II are displayed in real time through the display screen, and particularly the pressure value I is displayed, so that the pressure borne by the rock and soil can be displayed in real time; the clamping and fixing of the limiting cylinder can be realized through the clamping mechanism, so that the phenomenon that the pressure head cannot press down the rock and soil in the limiting cylinder due to position deviation is prevented.

Description

Pressurized rock-soil bearing capacity test board and test method thereof
Technical Field
The invention belongs to the technical field of rock-soil bearing capacity test, and particularly relates to a pressurized rock-soil bearing capacity test board and a test method thereof.
Background
The rock-soil bearing capacity test is an important step before civil engineering construction, and the main purpose of the rock-soil bearing capacity test is to obtain the mechanical properties of the detected ground rock-soil layer, so that the rock-soil bearing capacity test is used as a parameter basis for related building design and a safety guarantee that the building can maintain the mechanical balance state in the engineering construction process and after the construction is finished.
The bearing capacity is an important representation of the performance of the rock and soil, the bearing capacity is measured by adopting a load test, the rock and soil placed on the pressure gauge is extruded by using a hydraulic cylinder, so that the purpose of testing the bearing capacity of the rock and soil is achieved by observing the reading of the pressure gauge when the rock and soil is broken, at present, the rock and soil is placed in a limiting cylinder, the limiting cylinder is required to be clamped and fixed when the rock and soil is extruded, so that the limiting cylinder is positioned under the hydraulic cylinder, and a common clamping mechanism is generally arranged on a table top, so that the operation of other equipment on the table top can be interfered, and therefore, the pressurized rock and soil bearing capacity test table and a test method thereof are provided for solving the problems in the background art.
Disclosure of Invention
The invention aims to provide a pressurized rock-soil bearing capacity test board and a test method thereof, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the pressurized rock-soil bearing capacity test table comprises a pressure detector, a pressure detection module, a base and a controller, wherein slide rails are arranged on the left side and the right side of the upper end of the base, and a bearing seat for detachably bearing a limiting cylinder is connected to the slide rails in a sliding manner;
the front side of the inside of the base is provided with a containing groove for containing the clamping mechanism, and a first hydraulic cylinder is arranged in the containing groove and used for driving the clamping mechanism to upwards turn out of the containing groove and clamping the limiting cylinder in a positioning seat at the upper end of the rear part of the base;
the upper end of the base is provided with a second hydraulic cylinder through a bracket, and the second hydraulic cylinder is used for driving the pressure head to descend and extend into the limiting cylinder to pressurize rock and soil in the limiting cylinder;
the controller is used for controlling the work of the first hydraulic cylinder and the second hydraulic cylinder through the first pressure control valve and the second pressure control valve respectively;
the pressure detector is used for detecting a pressure value I applied to rock soil by the pressure head, the pressure detection module is used for detecting a pressure value II applied to the limiting cylinder by the clamping mechanism, the pressure value I and the pressure value II are transmitted to the data processing module through the data acquisition module and displayed through the display screen, and the output end of the data processing module is connected to the input end of the controller.
The invention also provides a test method of the pressurized rock-soil bearing capacity test board, which comprises the following steps:
s1, installing a limit cylinder at the upper end of a bearing seat, placing rock and soil into the limit cylinder, and then pushing the bearing seat backwards to enable the bearing seat to slide backwards along a sliding rail until the limit cylinder is close to a positioning seat;
s2, controlling the first pressure control valve to be opened through the controller, enabling the output end of the first hydraulic cylinder to extend out, enabling the rotating plate to rotate clockwise by taking the first pin shaft as the circle center until the clamping block compresses the limiting cylinder, and clamping the limiting cylinder in the positioning seat at the upper end of the rear part of the base;
s3, simultaneously, the pressure detection module detects a pressure value II applied to the limiting cylinder by the clamping block, the pressure value II is transmitted to the data processing module through the data acquisition module and displayed through the display screen, and when the pressure value II is detected to be the same as the pressure applied to the limiting cylinder by a preset clamping mechanism in the data processing module, the first hydraulic cylinder is controlled by the controller to stop working;
s4, controlling a second pressure control valve to be opened through a controller, enabling a pressure head at the output end of the second hydraulic cylinder to descend and extend into the limiting cylinder, and pressurizing rock and soil in the limiting cylinder;
s5, simultaneously, the pressure detector detects a pressure value I applied by the pressure head to the rock and soil, and the pressure value I is transmitted to the data processing module through the data acquisition module and displayed through the display screen;
s6, after the side view is finished, the controller controls the second pressure control valve to be opened, so that a pressure head at the output end of the second hydraulic cylinder rises and leaves the limiting cylinder, and the controller controls the second hydraulic cylinder to stop working;
then, the first pressure control valve is controlled to be opened through the controller, the output end of the first hydraulic cylinder is retracted, the rotating plate is enabled to rotate anticlockwise by taking the first pin shaft as the circle center until the rotating plate and the clamping block retract into the accommodating groove, the rotating plate is in a horizontal state and is supported at the upper end of the supporting table, and finally the controller controls the first hydraulic cylinder to stop working.
Compared with the prior art, the invention has the beneficial effects that: according to the pressurized rock-soil bearing capacity test board and the test method thereof, the bottom of the limiting cylinder is provided with the plug-in column which is inserted into the preset positioning hole at the upper end of the bearing seat, so that the detachable installation of the limiting cylinder and the bearing seat is realized, and the use is convenient;
the pressure value I and the pressure value II are displayed in real time through the display screen, and particularly the pressure value I is displayed, so that the pressure borne by the rock and soil can be displayed in real time;
the rock soil is placed in the limiting cylinder, and when the pressure head presses down the rock soil, rock soil slag and dust can be effectively prevented from scattering randomly, and the cleanliness of a working environment is maintained.
Before the pressure head presses down the rock soil, the limiting cylinder is clamped by the clamping mechanism, the first hydraulic cylinder drives the clamping mechanism to upwards overturn out of the accommodating groove, and the limiting cylinder is clamped in the positioning seat at the upper end of the rear part of the base, so that the clamping and fixing of the limiting cylinder can be realized, and the phenomenon that the pressure head cannot press down the rock soil in the limiting cylinder due to position deviation is prevented;
meanwhile, the pressure detection module detects a pressure value II applied by the clamping block to the limiting cylinder, the pressure value II is transmitted to the data processing module through the data acquisition module and displayed through the display screen, and when the pressure value II is detected to be the same as a pressure vertical III applied by a preset clamping mechanism to the limiting cylinder in the data processing module, the controller controls the first hydraulic cylinder to stop working, so that the clamping mechanism can be prevented from excessively pressing and clamping the limiting cylinder, and deformation of the limiting cylinder is prevented;
the output end of the first hydraulic cylinder is retracted, so that the rotating plate rotates anticlockwise by taking the first pin shaft as a circle center until the rotating plate and the clamping blocks retract into the accommodating groove, the rotating plate is in a horizontal state and is supported at the upper end of the supporting table, and finally the controller controls the first hydraulic cylinder to stop working, so that the clamping mechanism can be turned down and retract into the accommodating groove, the space is not occupied, and the limiting cylinder cannot be influenced to slide along the sliding rail after being mounted at the upper end of the bearing seat.
Drawings
FIG. 1 is a schematic diagram of an exploded structure of a spacing cylinder and a bearing seat of the present invention;
FIG. 2 is a schematic view of the relative positions of the sliding rail, the positioning seat and the receiving groove according to the present invention;
FIG. 3 is a schematic view of the clamping mechanism of the present invention retracted within the receiving slot;
FIG. 4 is a schematic view of the structure of the clamping mechanism of the present invention when the clamping mechanism is flipped over out of the receiving slot and clamps the limiting cylinder;
fig. 5 is a schematic diagram of an electrical connection structure of the controller, the pressure detector, the data acquisition module, the data processing module, the pressure detection module and the like according to the present invention.
In the figure: 1. a base; 2. a support leg; 3. a slide rail; 4. clamping blocks; 5. a receiving groove; 6. a positioning seat; 7. a second hydraulic cylinder; 8. an auxiliary sleeve; 9. a pressure head; 10. a bracket; 11. a piston rod; 12. a cross plate; 13. diagonal bracing; 14. a bearing seat; 15. a limiting cylinder; 16. a mounting frame; 17. a first hydraulic cylinder; 18. a connecting plate; 19. a rotating plate; 20. a support table; 21. a slide; 22. an inner groove; 23. a controller; 24. a first pressure control valve; 25. a second pressure control valve; 26. a pressure detector; 27. a data acquisition module; 28. a data processing module; 29. a display screen; 30. and a pressure detection module.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, 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.
The invention provides a pressurized rock-soil bearing capacity test board as shown in fig. 1-5, which comprises a pressure detector 26, a pressure detection module 30, a base 1 and a controller 23, wherein the bottom of the base 1 is provided with a supporting leg 2, the left side and the right side of the upper end of the base 1 are provided with sliding rails 3, and a bearing seat 14 for detachably bearing a limit cylinder 15 is connected on the sliding rails; two groups of slide seats 21 which are bilaterally symmetrical are arranged at the bottom of the bearing seat 14, and the slide seats 21 are connected to the corresponding slide rails 3 in a sliding manner.
The bottom of the limiting cylinder 15 is provided with a plug-in column which is inserted into a preset positioning hole at the upper end of the bearing seat 14, so that the installation of the limiting cylinder 15 and the bearing seat 14 is realized, and the outer diameters of the limiting cylinder 15 and the bearing seat 14 are the same. The limiting cylinder 15 is made of transparent materials, so that the rock and soil fracture can be observed conveniently.
The front side of the inside of the base 1 is provided with an accommodating groove 5 for accommodating the clamping mechanism, and a first hydraulic cylinder 17 is arranged in the accommodating groove 5 and used for driving the clamping mechanism to upwards overturn out of the accommodating groove 5 and clamping a limit cylinder 15 in a positioning seat 6 at the upper end of the rear part of the base 1;
the upper end opening of the accommodating groove 5 is positioned in the middle between the left and right groups of sliding rails 3, and the clamping mechanism comprises a rotating plate 19, a clamping block 4 and a connecting plate 18, wherein the right end of the rotating plate 19 is movably connected with the accommodating groove 5 through a first pin shaft, the clamping block 4 is arranged on the upper side of the left end of the rotating plate 19, and the connecting plate 18 is arranged on the lower side of the right end of the rotating plate 19;
the rotating plate 19, the clamping blocks 4 and the connecting plate 18 are integrally formed, and a supporting table 20 is arranged on the front side of the bottom of the accommodating groove 5 and is used for supporting the rotating plate 19 in a horizontal state.
The output end of the first hydraulic cylinder 17 is connected with the connecting plate 18 through a second pin shaft, and the right end of the first hydraulic cylinder 17 is movably connected with the mounting frame 16 through a third pin shaft; the bottom rear side of the accommodation groove 5 is provided with an inner groove 22, and the bottom of the mounting frame 16 is fixed in the inner groove 22.
The upper end of the base 1 is provided with a second hydraulic cylinder 7 through a bracket 10, and the second hydraulic cylinder is used for driving a pressure head 9 to descend and extend into a limit cylinder 15 to pressurize rock and soil in the limit cylinder 15;
the piston rod 11 of second pneumatic cylinder 7 output runs through support 10 back and connects in the upper end middle part of pressure head 9, and has cup jointed auxiliary sleeve 8 on the piston rod 11, and the left and right sides both ends of auxiliary sleeve 8 are fixed at the support 10 inner wall through diaphragm 12, and diaphragm 12 upper end is connected in support 10 inner wall through bracing 13.
Through the setting of auxiliary sleeve 8, when piston rod 11 reciprocates, play its restriction effect, prevent that piston rod 11 from shifting when reciprocating, improve piston rod 11's life.
The controller 23 is used for controlling the operation of the first hydraulic cylinder 17 and the second hydraulic cylinder 7 through a first pressure control valve 24 and a second pressure control valve 25 respectively;
the pressure detector 26 is used for detecting a pressure value I applied to the rock soil by the pressure head 9, the pressure detection module 30 is used for detecting a pressure value II applied to the limiting cylinder 15 by the clamping mechanism, the pressure value I and the pressure value II are transmitted to the data processing module 28 through the data acquisition module 27 and displayed through the display screen 29, and the output end of the data processing module 28 is connected to the input end of the controller 23.
The pressure detection module 30 is embedded into one surface of the clamping block 4, which is contacted with the surface of the limit cylinder 15.
The invention also provides a test method of the pressurized rock-soil bearing capacity test board, which comprises the following steps:
s1, installing a limit cylinder 15 at the upper end of a bearing seat 14, putting rock and soil into the limit cylinder 15, and then pushing the bearing seat 14 backwards to enable the bearing seat 14 to slide backwards along a sliding rail 3 until the limit cylinder 15 is close to a positioning seat 6;
s2, controlling a first pressure control valve 24 to be opened through a controller 23, enabling the output end of a first hydraulic cylinder 17 to extend out, enabling a rotating plate 19 to rotate clockwise by taking a first pin shaft as a circle center until a clamping block 4 compresses a limiting cylinder 15, and clamping the limiting cylinder 15 in a positioning seat 6 at the upper end of the rear part of a base 1;
s3, simultaneously, the pressure detection module 30 detects a pressure value II applied to the limiting cylinder 15 by the clamping block 4, the pressure value II is transmitted to the data processing module 28 through the data acquisition module 27 and displayed through the display screen 29, and when the pressure value II is detected to be the same as a vertical pressure III applied to the limiting cylinder 15 by a preset clamping mechanism in the data processing module 28, the controller 23 controls the first hydraulic cylinder 17 to stop working;
s4, controlling the second pressure control valve 25 to be opened through the controller 23, so that the pressure head 9 at the output end of the second hydraulic cylinder 7 descends and stretches into the limiting cylinder 15 to pressurize the rock and soil in the limiting cylinder 15;
s5, simultaneously, the pressure detector 26 detects a pressure value I applied to the rock and soil by the pressure head 9, and the pressure value I is transmitted to the data processing module 28 through the data acquisition module 27 and displayed through the display screen 29;
s6, after the side view is finished, the controller 23 controls the second pressure control valve 25 to be opened, so that the pressure head 9 at the output end of the second hydraulic cylinder 7 rises and leaves the limiting cylinder 15, and the controller 23 controls the second hydraulic cylinder 7 to stop working;
then, the controller 23 controls the first pressure control valve 24 to be opened, so that the output end of the first hydraulic cylinder 17 is retracted, the rotating plate 19 rotates anticlockwise by taking the first pin shaft as the circle center until the rotating plate 19 and the clamping block 4 retract into the accommodating groove 5, the rotating plate 19 is in a horizontal state and is supported at the upper end of the supporting table 20, and finally the controller 23 controls the first hydraulic cylinder 17 to stop working.
In summary, compared with the prior art, the bottom of the limiting cylinder 15 is provided with the inserting column which is inserted into the preset positioning hole at the upper end of the bearing seat 14, so that the detachable installation of the limiting cylinder 15 and the bearing seat 14 is realized, and the use is convenient;
the pressure value I and the pressure value II are displayed in real time through the display screen 29, and particularly the pressure value I is displayed, so that the pressure borne by the rock and soil can be displayed in real time;
the rock soil is placed in the limiting cylinder 15, and when the pressure head 9 presses down the rock soil, the rock soil slag and dust can be effectively prevented from scattering randomly, and the cleanliness of the working environment is maintained.
Before the pressure head 9 presses down the rock and soil, the limiting cylinder 15 is clamped by adopting the clamping mechanism, the first hydraulic cylinder 17 drives the clamping mechanism to upwards turn over to be out of the accommodating groove 5, and the limiting cylinder 15 is clamped in the positioning seat 6 at the upper end of the rear part of the base 1, so that the clamping and fixing of the limiting cylinder 15 can be realized, and the phenomenon that the pressure head 9 cannot press down the rock and soil in the limiting cylinder 15 due to position deviation is prevented;
meanwhile, the pressure detection module 30 detects a pressure value II applied to the limiting cylinder 15 by the clamping block 4, the pressure value II is transmitted to the data processing module 28 through the data acquisition module 27 and displayed through the display screen 29, and when the pressure value II is detected to be the same as a vertical III applied to the limiting cylinder 15 by a preset clamping mechanism in the data processing module 28, the controller 23 controls the first hydraulic cylinder 17 to stop working, so that the clamping mechanism can be prevented from excessively pressing and clamping the limiting cylinder 15, and the limiting cylinder 15 is prevented from deforming;
the output end of the first hydraulic cylinder 17 is retracted, so that the rotating plate 19 rotates anticlockwise by taking the first pin shaft as the center of a circle until the rotating plate 19 and the clamping blocks 4 retract into the accommodating groove 5, the rotating plate 19 is in a horizontal state and is supported at the upper end of the supporting table 20, and finally the controller 23 controls the first hydraulic cylinder 17 to stop working, so that the clamping mechanism can be turned down and retracted into the accommodating groove 5, space is not occupied, and the limiting cylinder 15 cannot be influenced to slide along the sliding rail 3 after being mounted at the upper end of the bearing seat 14.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.

Claims (7)

1. The utility model provides a pressurized rock and soil bearing capacity testboard, includes pressure detector (26), pressure detection module (30), base (1), controller (23), its characterized in that: slide rails (3) are arranged on the left side and the right side of the upper end of the base (1), and a bearing seat (14) for detachably bearing a limit cylinder (15) is connected to the slide rails in a sliding manner;
the front side of the inside of the base (1) is provided with an accommodating groove (5) for accommodating the clamping mechanism, the accommodating groove (5) is internally provided with a first hydraulic cylinder (17) for driving the clamping mechanism to upwards overturn out of the accommodating groove (5), and the limiting cylinder (15) is clamped in a positioning seat (6) at the upper end of the rear part of the base (1);
the upper end of the base (1) is provided with a second hydraulic cylinder (7) through a bracket (10), and the second hydraulic cylinder is used for driving the pressure head (9) to descend and extend into the limiting cylinder (15) to pressurize rock and soil in the limiting cylinder (15);
the controller (23) is used for controlling the operation of the first hydraulic cylinder (17) and the second hydraulic cylinder (7) through a first pressure control valve (24) and a second pressure control valve (25) respectively;
the pressure detector (26) is used for detecting a pressure value I applied to rock soil by the pressure head (9), the pressure detection module (30) is used for detecting a pressure value II applied to the limiting cylinder (15) by the clamping mechanism, the pressure value I and the pressure value II are transmitted to the data processing module (28) through the data acquisition module (27) and displayed through the display screen (29), and the output end of the data processing module (28) is connected to the input end of the controller (23).
2. The pressurized rock-soil bearing capacity test stand of claim 1, wherein: the bottom of the base (1) is provided with supporting legs (2), the bottom of the bearing seat (14) is provided with two groups of sliding seats (21) which are bilaterally symmetrical, and the sliding seats (21) are connected to the corresponding sliding rails (3) in a sliding way.
3. The pressurized rock and soil bearing capacity test stand of claim 2, wherein: the clamping mechanism comprises a rotating plate (19) with the right end movably connected with the accommodating groove (5) through a first pin shaft, a clamping block (4) arranged on the upper side of the left end of the rotating plate (19) and a connecting plate (18) arranged on the lower side of the right end of the rotating plate (19);
the output end of the first hydraulic cylinder (17) is connected with the connecting plate (18) through a second pin shaft, and the right end of the first hydraulic cylinder (17) is movably connected with the mounting frame (16) through a third pin shaft;
an inner groove (22) is formed in the rear side of the bottom of the accommodating groove (5), and the bottom of the mounting frame (16) is fixed to the inner groove (22).
4. A pressurized rock and soil bearing capacity test stand as defined in claim 3, wherein: the rotary plate (19), the clamping blocks (4) and the connecting plates (18) are integrally formed, and a supporting table (20) is arranged on the front side of the bottom of the accommodating groove (5) and used for supporting the rotary plate (19) in a horizontal state.
5. The pressurized rock-soil bearing capacity test stand of claim 4, wherein: the pressure detection module (30) is embedded into one surface of the clamping block (4) contacted with the surface of the limit cylinder (15).
6. The pressurized rock-soil bearing capacity test stand of claim 1, wherein: the bottom of the limiting cylinder (15) is provided with an inserting column which is inserted into a preset positioning hole at the upper end of the bearing seat (14), so that the limiting cylinder (15) and the bearing seat (14) are mounted, and the outer diameters of the limiting cylinder (15) and the bearing seat (14) are the same.
7. A test method of a pressurized rock-soil bearing capacity test bench is characterized by comprising the following steps of: the method specifically comprises the following steps:
s1, installing a limit cylinder (15) at the upper end of a bearing seat (14), putting rock and soil into the limit cylinder (15), and then pushing the bearing seat (14) backwards to enable the bearing seat (14) to slide backwards along a sliding rail (3) until the limit cylinder (15) is close to a positioning seat (6);
s2, controlling a first pressure control valve (24) to be opened through a controller (23) so that the output end of a first hydraulic cylinder (17) extends out, enabling a rotating plate (19) to rotate clockwise by taking a first pin shaft as a circle center until a clamping block (4) presses a limit cylinder (15), and clamping the limit cylinder (15) in a positioning seat (6) at the upper end of the rear part of a base (1);
s3, simultaneously, a pressure detection module (30) detects a pressure value II applied by a clamping block (4) to a limiting cylinder (15), the pressure value II is transmitted to a data processing module (28) through a data acquisition module (27), and is displayed through a display screen (29), and when the pressure value II is detected to be the same as a vertical III applied by a preset clamping mechanism in the data processing module (28) to the limiting cylinder (15), a controller (23) controls a first hydraulic cylinder (17) to stop working;
s4, controlling a second pressure control valve (25) to be opened through a controller (23), enabling a pressure head (9) at the output end of the second hydraulic cylinder (7) to descend and extend into the limit cylinder (15), and pressurizing rock and soil in the limit cylinder (15);
s5, simultaneously, a pressure detector (26) detects a pressure value I applied to the rock and soil by the pressure head (9), and the pressure value I is transmitted to a data processing module (28) through a data acquisition module (27) and displayed through a display screen (29);
s6, after side view is completed, the controller (23) controls the second pressure control valve (25) to be opened, so that the pressure head (9) at the output end of the second hydraulic cylinder (7) rises and leaves the limit cylinder (15), and the controller (23) controls the second hydraulic cylinder (7) to stop working;
then, the first pressure control valve (24) is controlled to be opened through the controller (23), the output end of the first hydraulic cylinder (17) is retracted, the rotating plate (19) rotates anticlockwise by taking the first pin shaft as the circle center until the rotating plate (19) and the clamping block (4) retract into the accommodating groove (5), the rotating plate (19) is in a horizontal state and is supported at the upper end of the supporting table (20), and finally the controller (23) controls the first hydraulic cylinder (17) to stop working.
CN202311095745.6A 2023-08-29 2023-08-29 Pressurized rock-soil bearing capacity test board and test method thereof Pending CN117030485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311095745.6A CN117030485A (en) 2023-08-29 2023-08-29 Pressurized rock-soil bearing capacity test board and test method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311095745.6A CN117030485A (en) 2023-08-29 2023-08-29 Pressurized rock-soil bearing capacity test board and test method thereof

Publications (1)

Publication Number Publication Date
CN117030485A true CN117030485A (en) 2023-11-10

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Application Number Title Priority Date Filing Date
CN202311095745.6A Pending CN117030485A (en) 2023-08-29 2023-08-29 Pressurized rock-soil bearing capacity test board and test method thereof

Country Status (1)

Country Link
CN (1) CN117030485A (en)

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