Joint topography anisotropy and size effect integrated measuring device and method

Abstract

A joint topography anisotropy and size effect integrated measuring device, including frame system, slide rail system, drawing system, bearing system, drawing paper expansion system, chassis driven transmission system, square bottom plate with round hole bearing and fixed plate, the fixed plate is located in the frame system, the square bottom plate with round hole bearing is located in the frame system, the bearing system is located on the square bottom plate with round hole bearing, the slide rail system is located on the frame system, the drawing system is connected with the slide rail system and is located above the bearing system, the drawing paper expansion system is located on the right side of the drawing system, the chassis driven transmission system is located in the frame system and is connected with the bearing system, the drawing paper expansion system and the fixed plate, and a joint topography anisotropy and size effect integrated measuring method is provided.The device can realize full-range measurement of joint surface relief topography, and can also realize surface relief topography measurement of joint series continuous size, and is simple to operate, short in cycle and low in cost.

Description

Technical Field

[0001] This invention relates to an integrated device and method for measuring joint morphology anisotropy and size effect, mainly used for measuring the surface undulation morphology of joints, and applicable to geotechnical engineering and related fields. Background Technology

[0002] Roughness is a crucial factor affecting the shear strength of joints. To obtain joint morphology parameters, it is necessary to measure the surface undulations of the joints. Commonly used devices for measuring the surface undulations of rock mass joints include: a profile curve instrument (CN92226138.5), a rock mass joint surface profile mapping instrument (CN201520404878.1), and a portable rock mass structural surface roughness profile measuring instrument (CN202011514550.7). However, these devices can only measure the surface undulations in a single direction and cannot measure the surface undulations of joints from all directions. They fail to reflect the anisotropic characteristics of joints, and existing devices cannot achieve continuous measurement of a series of dimensions, nor can they reflect the size effect characteristics of joints.

[0003] Therefore, the main shortcomings of existing devices are: 1) They can only measure the surface undulation morphology of joints in a single direction, and cannot achieve omnidirectional measurement of surface undulation morphology, nor can they obtain the anisotropic characteristics of joints; 2) The measurement size is limited, and it is impossible to achieve a series of continuous size measurements, thus failing to obtain the size effect characteristics of joints; 3) Existing devices cannot guarantee the perpendicularity of the drawing system, resulting in low measurement accuracy. Therefore, in order to achieve omnidirectional and continuous size measurements of the surface undulation morphology of joints, it is urgent to invent an integrated device for measuring the anisotropy and size effect of joint morphology. Summary of the Invention

[0004] To overcome the shortcomings of existing devices that cannot measure the undulation morphology of joint surfaces from all angles or measure the undulation morphology of joint surfaces of continuous dimensions, this invention provides an integrated device and method for measuring the anisotropy and size effect of joint morphology. It can effectively solve the shortcomings of existing measuring devices and operating methods. It can not only measure the undulation morphology of joint surfaces from all angles, but also measure the surface undulation morphology of joint surfaces of continuous dimensions. Moreover, it is simple to operate, has a short cycle time, and is inexpensive.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] An integrated measuring device for joint morphology anisotropy and size effect includes a frame system, a slide rail system, a drawing system, a load-bearing system, a drawing expansion system, a chassis driven transmission system, a square base plate with a circular hole bearing, and a fixing plate. The fixing plate is located within the frame system, the square base plate with the circular hole bearing is located within the frame system, the load-bearing system is located on the square base plate with the circular hole bearing, the slide rail system is located on the frame system, the drawing system is connected to the slide rail system and is located above the load-bearing system, the drawing expansion system is located to the right of the drawing system, and the chassis driven transmission system is located within the frame system and is connected to the load-bearing system, the drawing expansion system, and the fixing plate.

[0007] Furthermore, the slide rail system includes a slide rail end, a slide rail connector, and a straight rail, wherein the slide rail end is connected to the straight rail through the slide rail connector.

[0008] Furthermore, the drawing system includes a guide block, a housing, a return spring, a connecting mechanism, a connecting mechanism support, a contact, a drawing pen, a fixing spring, a horizontal drawing pen fixing component, and a vertical drawing pen fixing component. The guide block is fixed to the top of the housing. The connecting mechanism support and the return spring are installed inside the housing. The contact is installed below the connecting mechanism. The horizontal drawing pen fixing component, the vertical drawing pen fixing component, and the fixing spring are installed inside the connecting mechanism. The drawing pen is installed inside the connecting mechanism via the horizontal drawing pen fixing component and the vertical drawing pen fixing component. The connecting mechanism is installed inside the housing via the connecting mechanism support.

[0009] Furthermore, the load-bearing system includes a circular load-bearing component, a sector-shaped assembly component, and a sector ring assembly component. The circular load-bearing component is mounted on a square base plate with a circular bearing via a circular shaft. The sector-shaped assembly component is assembled around the circular load-bearing component, and the sector ring assembly component is assembled around the sector-shaped assembly component.

[0010] Furthermore, the drawing expansion system includes a paper-carrying disk, a paper-carrying disk expansion component, and a fan-ring expansion component. The paper-carrying disk is located on the right side of the drawing system. The paper-carrying disk expansion component is assembled around the paper-carrying disk, and the fan-ring expansion component is assembled around the paper-carrying disk expansion component.

[0011] Furthermore, the chassis driven transmission system includes a transverse transmission belt, a vertical transmission belt, a rocker arm, a transverse conical turntable, a vertical conical turntable, a transverse transmission shaft, a vertical transmission shaft, and a transverse conical turntable fixing column. The transverse transmission belt is mounted on the vertical transmission shaft and connected to the circular shaft. The vertical transmission belt is mounted on the transverse transmission shaft and connected to the shaft rod. The transverse conical turntable is mounted on the fixing column. The vertical conical turntable is connected to the rocker arm. The vertical transmission shaft is mounted on the transverse conical turntable. The transverse transmission shaft is mounted on the vertical conical turntable.

[0012] Furthermore, the frame system includes a three-way corner column, a threaded sleeve connector, a threaded straight rod, a connecting rod, and a lightweight fixing rod. The three-way corner column is connected to the threaded straight rod through the threaded sleeve connector. The connecting rod is located on the threaded straight rod and is connected to a bearing-equipped shaft fixing member through the lightweight fixing rod.

[0013] The measuring device also includes a round shaft, which is mounted on a square base plate with a round hole bearing. The square base plate with the round hole bearing is located directly below the drawing system. The round bearing component in the bearing system is connected to the round shaft, which is mounted on the square base plate with the round hole bearing.

[0014] The measuring device also includes a bearing-loaded shaft fixing component, a connecting component between the bearing-loaded shaft fixing component and the fixing plate, a bearing, and a shaft. The bearing-loaded shaft fixing component is mounted on the fixing plate through the connecting component between the bearing-loaded shaft fixing component and the fixing plate. The bearing-loaded shaft fixing component has a built-in bearing, and the shaft is mounted in the bearing-loaded shaft fixing component through the bearing, and is connected to the drawing expansion system.

[0015] A method for measuring joint morphology anisotropy and size effect using an integrated measuring device, the method comprising the following steps:

[0016] 1) Select the joint with the smallest size as the initial measurement sample according to the order of the measured joint size from smallest to largest;

[0017] 2) Determine the external dimensions of the device based on the dimensions of the selected joint to be measured;

[0018] 3) Install an integrated measuring device for joint morphology anisotropy and size effect. The measuring device includes a frame system, a slide rail system, a drawing system, a load-bearing system, a drawing expansion system, a chassis driven transmission system, a square base plate with round hole bearings, and a fixing plate. The fixing plate is located inside the frame system. The square base plate with round hole bearings is located inside the frame system. The load-bearing system is located on the square base plate with round hole bearings. The slide rail system is located on the frame system. The drawing system is connected to the slide rail system and is located above the load-bearing system. The drawing expansion system is located to the right of the drawing system. The chassis driven transmission system is located inside the frame system and is connected to the load-bearing system, the drawing expansion system, and the fixing plate.

[0019] 4) According to the engineering requirements, measure the surface undulation morphology of the joint to be measured at the initial measurement orientation;

[0020] 5) Adjust the joint to be measured to any specified measurement orientation required by the project;

[0021] 6) By repeating steps 4) and 5) cyclic measurements at different measurement orientations, the surface undulation morphology of the joint to be measured can be measured at any specified orientation.

[0022] 7) Replace the drawings and the sample to be tested, and select the joint with the middle size as the sample for the second measurement, according to the order of the measured joint size from small to large.

[0023] 8) Redetermine the external dimensions of the device based on the dimensions of the selected joint to be measured, and expand the dimensions through the assembly of the device;

[0024] 9) Repeat steps 4) and 5) to complete the second measurement of the surface undulation morphology of the sample;

[0025] 10) Replace the drawings and the sample to be tested, and select the joint with the largest size as the third measurement sample according to the order of the measured joint size from small to large;

[0026] 11) Determine the external dimensions of the device again based on the dimensions of the selected joint to be measured, and expand the dimensions by reassembling the device;

[0027] 12) Repeat steps 4) and 5) to complete the third measurement of the surface undulation morphology of the sample;

[0028] 13) After completing the test, remove the drawings and dismantle the device.

[0029] Furthermore, the determination method also includes the following steps:

[0030] 14) By comparing the surface morphology curves of the measured joints in multiple orientations with the typical two-dimensional profiles in the empirical value method, the morphology parameter values ​​of the measured joints are obtained, and the anisotropic rose diagram of the morphology parameters of the joints is drawn.

[0031] 15) By comparing the surface morphology curves of the measured joints at different sizes with the typical two-dimensional profiles in the empirical value method, the joint morphology parameter values ​​of the measured joints are obtained, and the size effect rose diagram of the joint morphology parameters is drawn.

[0032] 16) Determine the stability and strength parameter thresholds of the rock mass in each direction based on the anisotropic rose diagram and size effect rose diagram of the measured joint morphology parameters.

[0033] The beneficial effects of this invention are mainly reflected in:

[0034] (1) It can draw the surface undulations of joints from all directions (0° to 360°) and obtain the anisotropic properties of joints;

[0035] (2) It can draw a series of continuous dimensions and obtain the joint size effect characteristics;

[0036] (3) It can ensure the verticality of the drawing system, which can improve the accuracy of measurement. Attached Figure Description

[0037] Figure 1 This is a front view of an integrated measuring device for joint morphology anisotropy and size effect.

[0038] Figure 2 This is a top view of an integrated measuring device for joint morphology anisotropy and size effect.

[0039] Figure 3 This is a left view of the integrated measuring device for joint morphology anisotropy and size effect.

[0040] Figure 4 This is a structural diagram of the slide rail system.

[0041] Figure 5 This is a schematic diagram of the system, where (a) is a sectional view and (b) is a side view.

[0042] Figure 6 This is a schematic diagram of the load-bearing system, where (a) is the front view, (b) is the disassembly and assembly view, and (c) is the assembly view.

[0043] Figure 7 This is a schematic diagram of the drawing expansion system, where (a) is the front view and (b) is the split view.

[0044] Figure 8 This is a schematic diagram of the chassis driven transmission system, where (a) is the front view and (b) is the left view.

[0045] The system comprises: 1. Frame system: 1-1. Three-way corner post; 1-2. Threaded sleeve connector; 1-3. Threaded straight rod; 1-4. Connecting rod; 1-5. Lightweight fixing rod; 2. Slide rail system: 2-1. Slide rail end; 2-2. Slide rail connector; 2-3. Straight rail; 3. Drawing system: 3-1. Guide block; 3-2. Housing; 3-3. Return spring; 3-4. Connecting mechanism; 3-5. Connecting mechanism support; 3-6. Contact; 3-7. Drawing pen; 3-8. Fixing spring; 3-9. Horizontal fixing component for drawing pen; 3-10. Vertical fixing component for drawing pen; 4. Bearing system: 4-1. Circular bearing component; 4-2. Sector-shaped... 4-3. Fan ring assembly; 5. Drawing expansion system, 5-1. Paper-carrying disc; 5-2. Paper-carrying disc expansion component; 5-3. Fan ring expansion component; 6. Chassis driven transmission system, 6-1. Horizontal transmission belt; 6-2. Vertical transmission belt; 6-3. Rocker arm; 6-4. Horizontal conical turntable; 6-5. Vertical conical turntable; 6-6. Horizontal transmission shaft; 6-7. Vertical transmission shaft; 6-8. Horizontal conical turntable fixing column; 7. Square base plate with round hole bearing; 8. Round shaft; 9. Shaft fixing component with bearing; 10. Connecting component between shaft fixing component with bearing and fixing plate; 11. Bearing; 12. Shaft; 13. Fixing plate. Detailed Implementation

[0046] The present invention will now be further described with reference to the accompanying drawings.

[0047] Reference Figures 1 to 8 An integrated measuring device for joint morphology anisotropy and size effect includes a frame system 1, a slide rail system 2, a drawing system 3, a load-bearing system 4, a drawing expansion system 5, a chassis driven transmission system 6, a square base plate 7 with a circular hole bearing, and a fixing plate 13. The fixing plate 13 is located within the frame system 1. The square base plate 7 with the circular hole bearing is located within the frame system 1. The load-bearing system 4 is located on the square base plate 7 with the circular hole bearing. The slide rail system 2 is located on the frame system 1. The drawing system 3 is connected to the slide rail system 2 and is located above the load-bearing system 4. The drawing expansion system 5 is located to the right of the drawing system 3. The chassis driven transmission system 6 is located within the frame system 1 and is connected to the load-bearing system 4, the drawing expansion system 5, and the fixing plate 13.

[0048] Furthermore, the slide rail system 2 includes a slide rail end 2-1, a slide rail connector 2-2, and a straight rail 2-3, wherein the slide rail end is connected to the straight rail through the slide rail connector.

[0049] Furthermore, the drawing system 3 includes a guide block 3-1, a housing 3-2, a return spring 3-3, a connecting mechanism 3-4, a connecting mechanism support 3-5, a contact 3-6, a drawing pen 3-7, a fixing spring 3-8, a horizontal drawing pen fixing component 3-9, and a vertical drawing pen fixing component 3-10. The guide block is fixed to the top of the housing. The connecting mechanism support and the return spring are installed inside the housing. The contact is installed below the connecting mechanism. The horizontal drawing pen fixing component, the vertical drawing pen fixing component, and the fixing spring are installed inside the connecting mechanism. The drawing pen is installed inside the connecting mechanism through the horizontal drawing pen fixing component and the vertical drawing pen fixing component. The connecting mechanism is installed inside the housing through the connecting mechanism support.

[0050] Furthermore, the bearing system 4 includes a circular bearing component 4-1, a fan-shaped assembly component 4-2, and a fan ring assembly component 4-3. The circular bearing component is mounted on a square base plate with a circular bearing hole via a circular shaft. The fan-shaped assembly component is assembled around the circular bearing component, and the fan ring assembly component is assembled around the fan-shaped assembly component.

[0051] Furthermore, the drawing expansion system 5 includes a paper-carrying disk 5-1, a paper-carrying disk expansion component 5-2, and a fan-ring expansion component 5-3. The paper-carrying disk is located on the right side of the drawing system. The paper-carrying disk expansion component is assembled around the paper-carrying disk, and the fan-ring expansion component is assembled around the paper-carrying disk expansion component.

[0052] Furthermore, the chassis driven transmission system 6 includes a transverse transmission belt 6-1, a vertical transmission belt 6-2, a rocker arm 6-3, a transverse conical turntable 6-4, a vertical conical turntable 6-5, a transverse transmission shaft 6-6, a vertical transmission shaft 6-7, and a transverse conical turntable fixing post 6-8. The transverse transmission belt is mounted on the vertical transmission shaft and connected to the round shaft. The vertical transmission belt is mounted on the transverse transmission shaft and connected to the shaft rod. The transverse conical turntable is mounted on the fixing post. The vertical conical turntable is connected to the rocker arm. The vertical transmission shaft is mounted on the transverse conical turntable. The transverse transmission shaft is mounted on the vertical conical turntable.

[0053] Furthermore, the frame system 1 includes a three-way angle column 1-1, a threaded sleeve connector 1-2, a threaded straight rod 1-3, a connecting rod 1-4, and a lightweight fixing rod 1-5. The three-way angle column is connected to the threaded straight rod through the threaded sleeve connector. The connecting rod is located on the threaded straight rod and is connected to the bearing-bearing shaft fixing member through the lightweight fixing rod.

[0054] The measuring device also includes a circular shaft 8, which is mounted on a square base plate 7 with a circular bearing. The square base plate 7 with the circular bearing is positioned directly below the drawing system 3. The circular bearing 4-1 in the bearing system 4 is connected to the circular shaft 8, which is mounted on the square base plate 7 with the circular bearing.

[0055] The measuring device also includes a bearing-loaded shaft fixing component 9, a bearing-loaded shaft fixing component and a fixing plate connecting component 10, a bearing 11, and a shaft. The bearing-loaded shaft fixing component is mounted on the fixing plate through the bearing-loaded shaft fixing component and the fixing plate connecting component. The bearing-loaded shaft fixing component has a built-in bearing, and the shaft is mounted in the bearing-loaded shaft fixing component through the bearing, and is connected to the drawing expansion system.

[0056] A method for measuring joint morphology anisotropy and size effect using an integrated measuring device, the method comprising the following steps:

[0057] 1) Select the joint with the smallest size as the initial measurement sample according to the order of the measured joint size from smallest to largest;

[0058] 2) Determine the external dimensions of the device based on the dimensions of the selected joint to be measured;

[0059] 3) Install an integrated measuring device for joint morphology anisotropy and size effect, which includes a frame system 1, a slide rail system 2, a drawing system 3, a load-bearing system 4, a drawing expansion system 5, a chassis driven transmission system 6, a square base plate 7 with round hole bearings, and a fixing plate 13. The fixing plate 13 is located inside the frame system 1, the square base plate 7 with round hole bearings is located inside the frame system 1, the load-bearing system 4 is located on the square base plate 7 with round hole bearings, the slide rail system 2 is located on the frame system 1, the drawing system 3 is connected to the slide rail system 2 and is located above the load-bearing system 4, the drawing expansion system 5 is located to the right of the drawing system 3, and the chassis driven transmission system 6 is located inside the frame system 1 and is connected to the load-bearing system 4, the drawing expansion system 5, and the fixing plate 13.

[0060] 4) According to the engineering requirements, measure the surface undulation morphology of the joint to be measured at the initial measurement orientation;

[0061] 5) Adjust the joint to be measured to any specified measurement orientation required by the project;

[0062] 6) By repeating steps 4) and 5) cyclic measurements at different measurement orientations, the surface undulation morphology of the joint to be measured can be measured at any specified orientation.

[0063] 7) Replace the drawings and the sample to be tested, and select the joint with the middle size as the sample for the second measurement, according to the order of the measured joint size from small to large.

[0064] 8) Redetermine the external dimensions of the device based on the dimensions of the selected joint to be measured, and expand the dimensions through the assembly of the device;

[0065] 9) Repeat steps 4) and 5) to complete the second measurement of the surface undulation morphology of the sample;

[0066] 10) Replace the drawings and the sample to be tested, and select the joint with the largest size as the third measurement sample according to the order of the measured joint size from small to large;

[0067] 11) Determine the external dimensions of the device again based on the dimensions of the selected joint to be measured, and expand the dimensions by reassembling the device;

[0068] 12) Repeat steps 4) and 5) to complete the third measurement of the surface undulation morphology of the sample;

[0069] 13) After completing the test, remove the drawings and dismantle the device;

[0070] 14) By comparing the surface morphology curves of the measured joints in multiple orientations with the typical two-dimensional profiles in the empirical value method, the morphology parameter values ​​of the measured joints are obtained, and the anisotropic rose diagram of the morphology parameters of the joints is drawn.

[0071] 15) By comparing the surface morphology curves of the measured joints at different sizes with the typical two-dimensional profiles in the empirical value method, the joint morphology parameter values ​​of the measured joints are obtained, and the size effect rose diagram of the joint morphology parameters is drawn.

[0072] 16) Determine the stability and strength parameter thresholds of the rock mass in each direction based on the anisotropic rose diagram and size effect rose diagram of the measured joint morphology parameters. In a certain project, the degree of joint undulation in the rock mass varies significantly in different directions and sizes. The anisotropy and size effect of the joint morphology are important factors affecting the shear strength of the jointed rock mass. Therefore, in order to evaluate the stability of the rock mass in this project, it is necessary to use the integrated joint morphology anisotropy and size effect measuring device provided by this invention to measure the surface undulation morphology of the joints.

[0073] In this embodiment, the joint samples are selected based on the degree of undulation and size variation of the joint surface morphology. According to the above requirements, the planar dimensions of joint A are selected as 20cm × 18cm, joint B as 45cm × 45cm, and joint C as 98cm × 100cm. The anisotropy of the surface undulation morphology of joints A, B, and C is measured according to project requirements. The selected angles for joint A are 0°, 28°, 92°, 166°, 222°, and 354°; for joint B, 10°, 32°, 90°, 155°, 200°, and 330°; and for joint C, 0°, 60°, 100°, 166°, 230°, and 344°.

[0074] The implementation scheme of the present invention is as follows:

[0075] 1) Select the joint with the smallest size as the initial measurement sample, according to the order of the measured joint size from smallest to largest.

[0076] 2) Determine the external dimensions of frame system 1 based on the dimensions of the selected joint A to be tested. The dimensions of the selected joint A are 20cm × 18cm, so the external dimensions of frame system 1 are selected as 50cm in length, 50cm in width, and 80cm in height. The internal dimensions of frame system 1 used to place joint A are 30cm × 30cm.

[0077] 3) Assemble the triaxial corner post 1-1, threaded sleeve connector 1-2, and straight rod 1-3 into frame system 1. Connect the triaxial corner post 1-1 located on the upper left side to the threaded straight rod 1-3 via the threaded sleeve connector 1-2. The threaded straight rod 1-3 is also connected to another threaded straight rod 1-3 via the threaded sleeve connector 1-2. Then assemble the remaining components in the azimuth angle according to the above connection method. A total of eight triaxial corner posts 1-1, thirty-eight threaded sleeve connectors 1-2, and twenty-six threaded straight rods 1-3 are assembled into frame system 1.

[0078] 4) Assemble the slide rail end 2-1, slide rail connector 2-2, and straight rail 2-3 to form slide rail system 2. Connect the slide rail end 2-1 on the left side to the straight rail 2-3 through the slide rail connector 2-2. The two straight rails are also connected through the slide rail connector 2-2. Then assemble the right side components according to the above connection method. A total of four slide rail ends 2-1, six slide rail connectors 2-2, and four straight rails 2-3 are assembled to form slide rail system 2.

[0079] 5) Install the slide rail end 2-1 of the assembled slide rail system 2 onto the frame system 1 through the threaded sleeve connector 1-2.

[0080] 6) Assemble the outer shell 3-2, connecting mechanism 3-5, contact 3-6, and drawing pen 3-7 into drawing system 3. Fix guide block 3-1 to the top of outer shell 3-2, install connecting mechanism support 3-5 and return spring 3-3 inside outer shell 3-2, then install contact 3-6 under connecting mechanism 3-4, install drawing pen horizontal fixing part 3-9, drawing pen vertical fixing part 3-10, and fixing spring 3-8 inside connecting mechanism 3-4, then install drawing pen 3-7 inside connecting mechanism 3-4 through drawing pen horizontal fixing part 3-9 and drawing pen vertical fixing part 3-10, and finally install connecting mechanism 3-4 inside outer shell 3-2 through connecting mechanism support 3-5.

[0081] 7) Install the assembled drawing system 3 into the straight rail 2-3 of the slide rail system 2 through the outer casing 3-2.

[0082] 8) Assemble the transverse conical turntable 6-4 and the vertical conical turntable 6-5 into a chassis driven transmission system 6. Place the transverse conveyor belt 6-1 on the vertical drive shaft 6-7, and the vertical conveyor belt 6-2 on the transverse drive shaft 6-6. Then, install the transverse conical turntable 6-4 on the fixed short column 6-8, and connect the vertical conical turntable 6-5 to the rocker arm 6-3. Finally, install the vertical drive shaft 6-7 on the transverse conical turntable 6-4, and the transverse drive shaft 6-6 on the vertical conical turntable 6-5.

[0083] 9) Install the chassis driven transmission system 6 into the frame system 1 using the transverse conical turntable fixing column 6-8 and the fixing plate 12. Install the fixing plate 12 into the frame system 1, then install the transverse conical turntable fixing column 6-8 of the chassis driven transmission system 6 next to the fixing plate 12, and finally install the vertical conical turntable 6-5 of the chassis driven transmission system 6 onto the fixing plate 12.

[0084] 10) The bearing system 4 is installed below the contact 3-6 in the drawing system 3 via the circular bearing 4-1. First, the circular shaft 8 is installed on the square base plate 7 with the circular bearing, then the square base plate 7 with the circular bearing is placed directly below the drawing system 3, and finally the circular bearing 4-1 in the bearing system 4 is connected to the circular shaft 8 and installed on the square base plate 7 with the circular bearing.

[0085] 11) Install the drawing expansion system 5 to the right of the drawing pen 3-7 in the drawing system 3 via the paper carrier disk 5-1. Install the shaft 12 in the bearing-supported shaft fixing member 9 via the bearing 11. Connect the fixing plate 12 to the bearing-supported shaft fixing member 9 via the connecting member 10 between the bearing-supported shaft fixing member and the fixing plate. Then install the connecting rod 1-4 on the two threaded straight rods 1-3 and connect it to the bearing-supported shaft fixing member 9 via the lightweight fixing rod 1-5. Finally, fix the paper carrier disk 5-1 and the shaft 12 in the drawing expansion system 5 to the bearing-supported shaft fixing member 9.

[0086] 12) Place joint A on the support system 4, then attach the drawing to the drawing expansion system 5, and then measure joint A at the 0° orientation. Place joint A and the drawing on the circular support 4-1 in the support system 4 and the paper disk 5-1 in the drawing expansion system 5, respectively. Select the initial orientation as 0°, then make the contact 3-6 in the drawing system 3 into close contact with the joint surface, and then push the guide block 3-1 to measure the morphology of joint A at the 0° orientation.

[0087] 13) The orientation of joint A is adjusted by the chassis driven transmission system 6 to measure the surface undulation of joint A in six directions. The measurement orientation is adjusted by the rocker arm 6-3 in the chassis driven transmission system 6, and then the morphology in that orientation is measured by the drawing system 3. This process is repeated to complete the surface undulation measurement of six orientations (0°, 28°, 92°, 166°, 222°, 354°) or any other specified orientation.

[0088] 14) Remove the measured joint A and the drawn drawing from the bearing system 4 and the drawing expansion system 5 respectively, and complete the measurement of the surface undulation morphology of joint A in six directions.

[0089] 15) Select joint B with the middle size as the second measurement sample according to the order of the measured joint size from small to large.

[0090] 16) Based on the dimensions of the selected joint B to be measured, the external dimensions of the frame system 1 are re-determined. The dimensions of the selected joint B are 45cm × 45cm, so the external dimensions of the frame system 1 are selected as length, width, and height as 100cm, 100cm, and 80cm, respectively. The internal dimensions of the frame system 1 used to place the joint B are 70cm × 70cm.

[0091] 17) Assemble the frame system 1, the load-bearing system 4, and the drawing expansion system 5 respectively, ensuring their dimensions meet the requirements of the joint B to be measured. Install the sixteen threaded straight rods 1-3 onto the existing frame system 1 using a threaded sleeve connector 1-2. Then assemble the eight sector-shaped assembly parts 4-2 of the load-bearing system 4 around the circular load-bearing part 4-1. Finally, assemble the eight paper-carrying disk expansion parts 5-2 of the drawing expansion system 5 around the paper-carrying disk 5-1.

[0092] 18) Repeat steps 12) and 13) above to complete the installation of joint B and the measurement of the surface undulation morphology in six directions (10°, 32°, 90°, 155°, 200°, 330°) or any other specified direction.

[0093] 19) Remove the measured joint B and the drawn drawing from the bearing system 4 and the drawing expansion system 5 respectively, and complete the measurement of the surface undulation morphology of joint B in six directions.

[0094] 20) Select the joint C with the largest size as the third measurement sample, according to the order of the measured joint size from smallest to largest.

[0095] 21) The external dimensions of the frame system 1 are re-determined based on the dimensions of the selected joint C to be tested. The dimensions of the selected joint C are 98cm × 100cm, so the external dimensions of the frame system 1 are 150cm in length, 150cm in width, and 80cm in height. The internal dimensions of the frame system 1 used to place the joint C are 110cm × 110cm.

[0096] 22) Assemble the frame system 1, the load-bearing system 4, and the drawing expansion system 5 separately to ensure their dimensions meet the requirements of the joint C to be measured. Install sixteen threaded straight rods 1-3 onto the existing frame system 1 using a threaded sleeve connector 1-2. Then assemble the eight fan-shaped ring assemblies 4-3 of the load-bearing system 4 around the fan-shaped assembly 4-2, and assemble the eight fan-shaped ring expansion pieces 5-3 of the drawing expansion system 5 around the paper-carrying disc expansion piece 5-2.

[0097] 23) Repeat steps 12) and 13) above to complete the installation of joint C and the measurement of surface undulations at six directions (0°, 60°, 100°, 166°, 230°, 344°) or any other specified direction.

[0098] 24) Remove the measured joint C and the drawn drawing from the bearing system 4 and the drawing expansion system 5 respectively, and complete the measurement of the surface undulation morphology of joint C in six directions.

[0099] 25) After completing the test, dismantle the device in the following order: chassis driven transmission system 6, load-bearing system 4, drawing system 3, slide rail system 2, drawing expansion system 5, and frame system 1. First, dismantle the chassis driven transmission system 6 and load-bearing system 4, then dismantle the drawing system 3 and slide rail system 2, then dismantle the drawing expansion system 5, and finally dismantle the frame system 1 and the remaining components. 26) Obtain the morphological parameter values ​​of the measured joints by comparing the surface morphology curves of the measured joints from multiple orientations with typical two-dimensional profiles obtained through the empirical value method, and draw anisotropic rose diagrams of the joint morphological parameters for joints A, B, and C. The morphological curves of joint A at six orientations (0°, 28°, 92°, 166°, 222°, 354°) were compared with typical two-dimensional profiles using an empirical value method to obtain the six joint morphological parameter values ​​of joint A. Then, an anisotropic rose diagram of the joint morphological parameters of joint A was drawn based on the obtained joint morphological parameter values. This process was repeated to draw anisotropic rose diagrams of the joint morphological parameters of joint B at 10°, 32°, 90°, 155°, 200°, 330° and joint C at 0°, 60°, 100°, 166°, 230°, 344°.

[0100] 27) By comparing the surface morphology curves of the measured joints at different sizes with typical two-dimensional profiles obtained from the empirical method, the joint morphology parameter values ​​of the measured joints are obtained, and size effect rose diagrams of joint morphology parameters for joints A, B, and C are plotted. Various concentric circular sampling windows of different sizes, ranging from 10cm*10cm to 100cm*100cm, are used, increasing at fixed intervals of 10cm, to sample the morphology curves of joint A in six directions. Then, according to the empirical method, the joint morphology parameter values ​​of joint A at different sizes are obtained by comparing with typical two-dimensional profiles. The size effect rose diagram of joint morphology parameters for joint A is then plotted based on the obtained joint morphology parameter values. This process is repeated to plot the size effect rose diagrams of joint morphology parameters for joints B and C. 28) Based on the anisotropic rose diagram and size effect rose diagram of the measured joint morphology parameters, the stability and strength parameter thresholds of the rock mass in each direction of the project are determined. The Barton-Bandis model, which empirically estimates the shear strength of rock mass structural planes, is used to input the joint morphology parameter values ​​of joints A, B, and C in the joint morphology parameter anisotropic rose diagram and the joint morphology parameter size effect rose diagram into the shear strength estimation formula of the Barton-Bandis model to obtain the corresponding shear strength. Then, the stability and strength parameter thresholds of the rock mass in each direction of the project are determined.

[0101] The embodiments described in this specification are merely examples of implementations of the inventive concept and are for illustrative purposes only. The scope of protection of this invention should not be considered limited to the specific forms described in these embodiments; rather, it extends to equivalent technical means conceived by those skilled in the art based on the inventive concept.

Claims

1. An integrated measuring device for joint morphology anisotropy and size effect, characterized in that, The measuring device includes a frame system, a slide rail system, a drawing system, a load-bearing system, a drawing expansion system, a chassis driven transmission system, a square base plate with round hole bearings, and a fixing plate. The fixing plate is located inside the frame system, the square base plate with round hole bearings is located inside the frame system, the load-bearing system is located on the square base plate with round hole bearings, the slide rail system is located on the frame system, the drawing system is connected to the slide rail system and is located above the load-bearing system, the drawing expansion system is located to the right of the drawing system, and the chassis driven transmission system is located inside the frame system and is connected to the load-bearing system, the drawing expansion system, and the fixing plate. The load-bearing system includes a circular load-bearing component, a sector-shaped assembly component, and a sector ring assembly component. The circular load-bearing component is mounted on a square base plate with a circular bearing via a circular shaft. The sector-shaped assembly component is assembled around the circular load-bearing component, and the sector ring assembly component is assembled around the sector-shaped assembly component. The drawing expansion system includes a paper-carrying disk, a paper-carrying disk expansion component, and a fan-ring expansion component. The paper-carrying disk is located on the right side of the drawing system. The paper-carrying disk expansion component is assembled around the paper-carrying disk, and the fan-ring expansion component is assembled around the paper-carrying disk expansion component. The chassis driven transmission system includes a transverse transmission belt, a vertical transmission belt, a rocker arm, a transverse conical turntable, a vertical conical turntable, a transverse transmission shaft, a vertical transmission shaft, and a transverse conical turntable fixing post. The transverse transmission belt is mounted on the vertical transmission shaft and connected to a circular shaft. The vertical transmission belt is mounted on the transverse transmission shaft and connected to a shaft. The transverse conical turntable is mounted on the transverse conical turntable fixing post. The vertical conical turntable is connected to the rocker arm. The vertical transmission shaft is mounted on the transverse conical turntable. The transverse transmission shaft is mounted on the vertical conical turntable. The frame system includes a three-way corner column, a threaded sleeve connector, a threaded straight rod, a connecting rod, and a lightweight fixing rod. The three-way corner column is connected to the threaded straight rod through the threaded sleeve connector. The connecting rod is located on the threaded straight rod and is connected to a bearing-equipped shaft fixing member through the lightweight fixing rod. The drawing system includes a guide block, a housing, a return spring, a connecting mechanism, a connecting mechanism support, a contact, a drawing pen, a fixing spring, a horizontal drawing pen fixing component, and a vertical drawing pen fixing component. The guide block is fixed to the top of the housing. The connecting mechanism support and the return spring are installed inside the housing. The contact is installed below the connecting mechanism. The horizontal drawing pen fixing component, the vertical drawing pen fixing component, and the fixing spring are installed inside the connecting mechanism. The drawing pen is installed inside the connecting mechanism via the horizontal drawing pen fixing component and the vertical drawing pen fixing component. The connecting mechanism is installed inside the housing via the connecting mechanism support. The measuring device also includes a round shaft, which is mounted on a square base plate with a round hole bearing. The square base plate with the round hole bearing is located directly below the drawing system. The round bearing component in the bearing system is connected to the round shaft and mounted on the square base plate with the round hole bearing. The measuring device also includes a bearing-loaded shaft fixing component, a connecting component between the bearing-loaded shaft fixing component and the fixing plate, a bearing, and a shaft. The bearing-loaded shaft fixing component is mounted on the fixing plate through the connecting component between the bearing-loaded shaft fixing component and the fixing plate. The bearing-loaded shaft fixing component has a built-in bearing, and the shaft is mounted in the bearing-loaded shaft fixing component through the bearing, and is connected to the drawing expansion system.

2. The integrated measuring device for joint morphology anisotropy and size effect as described in claim 1, characterized in that, The slide rail system includes a slide rail end, a slide rail connector, and a straight rail. The slide rail end is connected to the straight rail through the slide rail connector.

3. A method for measuring the joint morphology anisotropy and size effect integrated measuring device as described in claim 1, characterized in that, The determination method includes the following steps: 1) Select the joint with the smallest size as the initial measurement sample, according to the order of the measured joint size from smallest to largest; 2) Determine the external dimensions of the device based on the dimensions of the selected joint to be measured; 3) Install an integrated measuring device for joint morphology anisotropy and size effect. The measuring device includes a frame system, a slide rail system, a drawing system, a load-bearing system, a drawing expansion system, a chassis driven transmission system, a square base plate with round hole bearings, and a fixing plate. The fixing plate is located inside the frame system. The square base plate with round hole bearings is located inside the frame system. The load-bearing system is located on the square base plate with round hole bearings. The slide rail system is located on the frame system. The drawing system is connected to the slide rail system and is located above the load-bearing system. The drawing expansion system is located to the right of the drawing system. The chassis driven transmission system is located inside the frame system and is connected to the load-bearing system, the drawing expansion system, and the fixing plate. 4) According to the engineering requirements, measure the surface undulation morphology of the joint to be measured at the initial measurement orientation; 5) Adjust the joint to be measured to any specified measurement orientation required by the project; 6) By repeating steps 4) and 5) cyclic measurements at different measurement orientations, the surface undulation morphology of the joint to be measured can be measured at any specified orientation. 7) Replace the drawings and the sample to be tested, and select the joint with the middle size as the sample for the second measurement, according to the order of the measured joint size from small to large. 8) Redetermine the external dimensions of the device based on the dimensions of the selected joint to be measured, and expand the dimensions through the assembly of the device; 9) Repeat steps 4) and 5) to complete the second measurement of the surface undulation morphology of the sample; 10) Replace the drawings and the sample to be tested, and select the joint with the largest size as the third measurement sample according to the order of the measured joint size from small to large; 11) Determine the external dimensions of the device again based on the dimensions of the selected joint to be measured, and expand the dimensions by reassembling the device; 12) Repeat steps 4) and 5) to complete the third measurement of the surface undulation morphology of the sample; 13) After completing the test, remove the drawings and dismantle the device; 14) By comparing the surface morphology curves of the measured joints in multiple orientations with the typical two-dimensional profiles in the empirical value method, the morphology parameter values ​​of the measured joints are obtained, and the anisotropic rose diagram of the morphology parameters of the joints is drawn. 15) By comparing the surface morphology curves of the measured joints at different sizes with the typical two-dimensional profiles in the empirical value method, the joint morphology parameter values ​​of the measured joints are obtained, and the size effect rose diagram of the joint morphology parameters is drawn. 16) Determine the stability and strength parameter thresholds of the joint morphology in each direction of the engineering rock mass based on the anisotropic rose diagram and size effect rose diagram of the measured joint morphology parameters.

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