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CN-122008542-A - Rock slope multifunctional simulation box and method for manufacturing slope model thereof

CN122008542ACN 122008542 ACN122008542 ACN 122008542ACN-122008542-A

Abstract

The invention belongs to the technical field of slope simulation tests, and discloses a multifunctional rock mass slope simulation box and a method for manufacturing a slope model thereof. The multifunctional rock slope simulation box comprises a model box body, an intelligent printing mechanism and a real-time monitoring mechanism, wherein a two-dimensional horizontal moving platform is arranged at the top of the model box body, the printing platform is arranged on the two-dimensional horizontal moving platform, the intelligent printing mechanism comprises a model framework printing mechanism and a model body printing mechanism which are arranged on the printing platform and are respectively used for printing a model framework and a slope model in the model box body, and the real-time monitoring mechanism is arranged in the model box body and is used for observing strain and damage of the slope model in real time and transmitting the strain and damage to an external control terminal in real time. The invention can realize the efficient and accurate manufacture of various slope models, and carry out real-time monitoring test on the dynamic response and damage evolution of the slope, thereby improving the accuracy, diversity and intelligence of the rock slope simulation.

Inventors

  • WANG WEI
  • WANG FENGXIAN
  • MA LIYAN
  • LI ZHIAO
  • ZHANG WEIYI
  • WANG BINGTAO
  • ZHOU PENGXIANG
  • YAN JUN
  • QIN CHANGAN
  • ZHOU JIAJUN
  • PI JIN
  • DOU PENGFEI
  • MA JUNXUE
  • MA YIDING
  • ZHAO LEI

Assignees

  • 中国水利水电科学研究院

Dates

Publication Date
20260512
Application Date
20260415

Claims (19)

  1. 1. Rock mass side slope multifunctional simulation case, its characterized in that includes: the printing device comprises a model box (1), wherein a two-dimensional horizontal moving platform (2) is arranged at the top of the model box (1), and a printing platform (105) is arranged on the two-dimensional horizontal moving platform (2); the intelligent printing mechanism comprises a model framework printing mechanism (6) and a model body printing mechanism (7), wherein the model framework printing mechanism (6) and the model body printing mechanism (7) are arranged on the printing platform (105), the model framework printing mechanism (6) is used for printing a model framework (8) in the model box (1), and the model body printing mechanism (7) is used for printing a slope model (4); The real-time monitoring mechanism (3), the real-time monitoring mechanism (3) is arranged inside the model box (1), and the real-time monitoring mechanism (3) is used for observing the strain and damage of the slope model (4) in the simulation test process in real time and transmitting the strain and damage to an external control terminal in real time.
  2. 2. The rock slope multifunctional simulation box according to claim 1, characterized in that the model skeleton printing mechanism (6) comprises: a skeleton printing device connecting plate (601) fixedly connected with the printing platform (105); The model skeleton printing device (602) comprises a skeleton printing platform (602 c) and a skeleton bin (602 g) arranged on the skeleton printing platform (602 c), wherein a skeleton nozzle (602 h) is arranged at the bottom of the skeleton bin (602 g) and is used for printing the model skeleton (8); The framework printing lifting motor (606) is fixed on the framework printing device connecting plate (601), the output end of the framework printing lifting motor (606) is vertically downwards arranged and connected with the framework printing platform (602 c), and the framework printing lifting motor (606) is configured to drive the framework printing platform (602 c) to move in a lifting mode.
  3. 3. The rock slope multifunctional simulation box of claim 2, wherein the model skeleton printing device (602) further comprises: The framework motor platform (602 d), the framework motor platform (602 d) is fixed above the framework printing platform (602 c) through a plurality of vertical rods (602 i), the framework bin (602 g) is arranged between the framework motor platform (602 d) and the framework printing platform (602 c), and the framework spray heads (602 h) penetrate through the framework printing platform (602 c); Skeleton motor (602 e) is fixed on skeleton motor platform (602 d), skeleton feed bin (602 g) internally mounted has skeleton compression screw (602 f), the output of skeleton motor (602 e) is connected the top of skeleton compression screw (602 f) is in order to drive skeleton compression screw (602 f) rotates.
  4. 4. The rock slope multifunctional simulation box according to claim 2, wherein a skeleton material feeding hole (602 j) is formed in the side wall of the skeleton material bin (602 g), the skeleton material feeding hole (602 j) is connected with a skeleton material pump (13) through a skeleton material pipe (14), and a material overflow preventing device (602 k) is arranged on the skeleton material pipe (14).
  5. 5. The rock slope multifunctional simulation box of claim 4, wherein the model skeleton printing device (602) further comprises a skeleton heating device (602 b), the skeleton heating device (602 b) is connected with the skeleton printing platform (602 c) through a skeleton heating device connecting rod (602 a), and the skeleton heating device (602 b) is used for heating the skeleton shower nozzle (602 h).
  6. 6. The rock slope multifunctional simulation box according to claim 4, characterized in that the model skeleton printing device (602) comprises at least a side skeleton printing device (603), a crack or hole skeleton printing device (604) and a layer skeleton printing device (605) for printing a side skeleton (801), a crack or hole skeleton (802) and a layer skeleton (803) of the model skeleton (8), respectively; The framework material pump (13) at least comprises a side framework material pump (131), a crack or hole framework material pump (132) and a layer framework material pump (133), wherein the side framework printing device (603), the crack or hole framework printing device (604) and the layer framework printing device (605) are respectively connected with the side framework material pump (131), the crack or hole framework material pump (132) and the layer framework material pump (133) in a one-to-one correspondence manner through respective framework material pipes (14).
  7. 7. The rock slope multifunctional simulation box of claim 6, wherein the side skeleton material pump (131), the crack or hole skeleton material pump (132) and the layer skeleton material pump (133) are respectively filled with side skeleton material, crack or hole skeleton material and layer skeleton material, the crack or hole skeleton material is water-soluble 3D printing material, and the layer skeleton material is ultraviolet-degradable 3D printing material.
  8. 8. A rock slope multifunctional simulation box according to claim 1, characterized in that the model body printing mechanism (7) comprises: The rock mass printing device (701), the rock mass printing device (701) is connected with the printing platform (105) through a rock mass printing device connecting plate (705), the rock mass printing device (701) is connected with a rock mass material pump (9) through a rock mass material pipe (10), a rock mass printing lifting motor (703) is fixed on the rock mass printing device connecting plate (705), the rock mass printing lifting motor (703) is connected with the rock mass printing device (701) through a rock mass lifting screw (704), and the rock mass printing device (701) is used for printing the rock stratum of the slope model (4); The device comprises a layer spraying device (702), wherein the layer spraying device (702) is connected with the printing platform (105) through a layer spraying device connecting plate (706), the layer spraying device (702) is connected with a liquid pump (11) through a liquid material pipe (12), a layer printing lifting motor (707) is fixed on the layer spraying device connecting plate (706), the layer printing lifting motor (707) is connected with the layer spraying device (702) through a layer printing lifting screw (708), and the layer spraying device (702) is used for printing an adhesive layer on a rock stratum.
  9. 9. The rock mass slope multifunctional simulation box of claim 8, wherein the layer injection device (702) comprises: a deck jet platform (702 d) connected to the output of the deck print lift motor (707); The adhesive bin (702 j), the bottom of the adhesive bin (702 j) is fixed on the layer spraying platform (702 d), the top of the adhesive bin (702 j) is fixedly provided with a pressurizing device connecting platform (702 b), the side wall of the adhesive bin (702 j) is provided with an adhesive feeding hole (702 k), the bottom of the adhesive bin (702 j) is provided with a layer nozzle (702 l), the adhesive bin (702 j) is internally provided with a pressurizing piston (702 i), and the pressurizing piston (702 i) can push the adhesive in the adhesive bin (702 j) to the layer nozzle (702 l); A pressurizing motor (702 e) fixed to the pressurizing device connection platform (702 b), the pressurizing motor (702 e) configured to drive the pressurizing piston (702 i) to reciprocate; And the adhesive heating device (702 c) is connected with the layer spraying platform (702 d) through an adhesive heating device connecting rod (702 a), and the adhesive heating device (702 c) is arranged close to the layer spraying head (702 l).
  10. 10. The rock slope multifunctional simulation box according to claim 9, wherein the pressurizing motor (702 e) is fixed below the pressurizing device connecting platform (702 b) and the output end of the pressurizing motor (702 e) is vertically and upwards arranged, the output end of the pressurizing motor (702 e) is coaxially provided with a layer pressurizing screw (702 f) and can drive the layer pressurizing screw (702 f) to rotate, the output end of the layer pressurizing screw (702 f) is rotatably provided with a pressurizing head (702 g), a transmission rod (702 h) is fixedly arranged on the pressurizing head (702 g), and the transmission rod (702 h) is fixedly connected with the pressurizing piston (702 i).
  11. 11. The rock mass slope multifunctional simulation box according to claim 1, wherein the model box (1) further comprises a frame (108), a connecting plate (107) is arranged at the bottom of the frame (108), transparent glass plates (110) are arranged around the frame (108), and the two-dimensional horizontal moving platform (2) is arranged at the top end of the frame (108).
  12. 12. The rock mass slope multifunctional simulation box according to claim 11, wherein the two-dimensional horizontal moving platform (2) comprises a transverse rail (101) arranged at the top end of the frame (108), a transverse rail sliding block (102) is slidably arranged on the transverse rail (101), a vertical rail (103) is connected to the transverse rail sliding block (102), a vertical rail sliding block (104) is slidably arranged on the vertical rail (103), the printing platform (105) is arranged on the vertical rail sliding block (104), an ultraviolet lamp (111) is arranged at the bottom of the printing platform (105), the printing mechanism (6) of the model skeleton and the printing mechanism (7) of the model body are arranged on two sides of the printing platform (105) along the sliding direction of the transverse rail sliding block (102), and the transverse rail (101) and the vertical rail (103) are arranged along the horizontal direction and are mutually perpendicular.
  13. 13. The rock mass slope multifunctional simulation box according to claim 1, wherein the slope model (4) comprises a lamellar slope model with different roughness, a fissure slope model with intermittent or continuous fissures, a hole slope model with holes of different shapes, a soft and hard interbedded rock mass slope model, a hard contact slope model between rock formations, and lamellar + fissure slope model, hole + fissure slope model and lamellar + fissure + hole slope model.
  14. 14. The rock slope multifunctional simulation box according to claim 1, characterized in that the real-time monitoring mechanism (3) comprises: A high-speed camera for capturing an image sequence of the slope model (4) at a high frame rate; The image processing unit is in communication connection with the high-speed camera and is used for processing the image sequence in real time, extracting characteristic points of the slope model (4) and calculating strain and model damage of the characteristic points; and the data transmission module is in communication connection with the image processing unit and is used for transmitting the calculated data to an external control terminal in real time.
  15. 15. The rock mass slope multifunctional simulation box according to claim 14, characterized in that the image processing unit comprises a feature point extraction module and a strain calculation module, the feature point extraction module identifying feature points of the surface of the slope model (4) in successive image frames, the strain calculation module calculating strain according to the position change of the feature points; Characteristic point strain of the surface of the slope model (4) Expressed as: Wherein, the For the strain of the ith feature point, N (i) is the neighbor set of the ith feature point, In order to adjust the parameters of the device, For the feature point and neighborhood point distances, The displacement increment of the neighborhood point j in the x direction relative to the feature point i, The displacement increment of the neighborhood point j in the y direction relative to the feature point i, For the position difference between the jth neighborhood point and the feature point i in the x direction, The position difference between the jth neighborhood point and the characteristic point i in the y direction is obtained; Drawing a strain cloud chart according to the strain of each characteristic point, reflecting the strain through the change of color, and realizing the dynamic update damage visualization and real-time tracking of damage development in a real-time monitoring system through a visualization library in Python; The control terminal evaluates the damage of the slope model (4) in real time through the size and the distribution of the strain, judges whether the damage of the slope model (4) meets the expected result, if the result meets the expected result, the test is continued, and if the result does not meet the expected result, the control terminal immediately stops the test.
  16. 16. A method for manufacturing a slope model, characterized in that the method for manufacturing the slope model by using the rock mass slope multifunctional simulation box according to any one of claims 1 to 15 comprises the following steps: S1, an intelligent printing mechanism is arranged on a printing platform (105), and a two-dimensional horizontal moving platform (2) drives the printing platform (105) to move so that the intelligent printing mechanism moves to an initial horizontal position; s2, a model skeleton printing mechanism (6) prints a first layer of model skeleton (8); S3, printing a first layer of rock stratum by a model body printing mechanism (7), and spraying a first adhesive layer on the surface of the first layer of rock stratum by the model body printing mechanism (7) when the first layer of rock stratum is initially set; S4, repeating the steps S2-S3 until the model framework (8) and the rock stratum are printed, and taking out the model framework (8) to obtain the slope model (4).
  17. 17. The method of producing a slope model according to claim 16, wherein the model skeleton (8) in step S2 is printed by: S21, arranging a buffer plate (5) on the inner side wall of the model box (1); S22, starting printing, wherein a framework printing lifting motor (606) drives a framework printing lifting screw (607) to start rotating, so that a framework printing platform (602 c) moves downwards to reach the printing height, a valve of a side framework printing device (603) is opened, a valve of a crack or hole framework printing device (604) and a valve of a layer framework printing device (605) are closed, a side framework material pump (131) starts to work, and a side framework (801) is printed, if a side slope model (4) has a crack or hole, reserving the position of the crack or hole framework (802) when the side framework (801) is printed, stopping printing when the side framework is printed to the first layer of rock layer height, and closing the valve of the side framework printing device (603), and closing the side framework material pump (131); s23, opening a valve of the crack or hole framework printing device (604), closing the valves of the side framework printing device (603) and the layer framework printing device (605), starting a crack or hole framework material pump (132) to work, printing the crack or hole framework (802) in the side framework (801), closing the valve of the crack or hole framework printing device (604) when the crack or hole framework (802) is printed, and closing the crack or hole framework material pump (132); S24 the valve of aspect skeleton printing device (605) is opened, side skeleton printing device (603) with the valve of crack or hole skeleton printing device (604) is closed, and aspect skeleton material pump (133) is opened print first layer of face skeleton (803) on side skeleton (801) reserve rock mass material feed inlet (804) when layer skeleton (803) prints, after layer skeleton (803) print, close the valve of aspect skeleton printing device (605) closes aspect skeleton material pump (133), skeleton prints elevator motor (606) drive skeleton print elevator screw (607) counter-rotating, model skeleton print mechanism (6) reset.
  18. 18. The method of making a slope model according to claim 17, wherein step S3 specifically comprises the steps of: s31, after a first layer of the model framework (8) is printed, a rock mass printing lifting motor (703) drives a rock mass printing device (701) to move downwards to a reserved printing position, the rock mass printing device (701) starts to work and fills rock mass materials in the first layer of the model framework (8) through a rock mass material feeding port (804) so as to print a first layer of rock stratum, and then the rock mass printing lifting motor (703) lifts the rock mass printing device (701) to reset the rock mass printing device; S32, carrying out ultraviolet irradiation degradation on the layer framework (803) to wait for the initial setting of the first layer of rock stratum; s33, driving a layer spraying device (702) to descend by a layer printing lifting motor (707), wherein the layer spraying device (702) starts to work and sprays an adhesive layer on a first layer of rock stratum, and then closing the layer spraying device (702), and driving the layer spraying device (702) to ascend by the layer printing lifting motor (707); s34, the model skeleton printing mechanism (6) and the model body printing mechanism (7) move upwards to the printing height of the rock stratum of the next layer to prepare for the next printing.
  19. 19. The method of producing a slope model according to claim 16, wherein in step S4, after the model skeleton (8) is removed, a transparent adhesive is filled in the gap between the slope model (4) and the side wall of the model box (1).

Description

Rock slope multifunctional simulation box and method for manufacturing slope model thereof Technical Field The invention relates to the technical field of slope simulation tests, in particular to a multifunctional rock slope simulation box and a method for manufacturing a slope model of the multifunctional rock slope simulation box. Background The simulation test of the slope model vibration table needs to pile up the reduced scale slope model by means of a model box, and the manufacturing process is mainly completed manually. The manual production is time-consuming and labor-consuming, and only can reproduce a reduced scale slope model with a simple structure, such as a homogeneous slope model, a block slope model with a small amount of cracks, a thick layer hard contact slope model, and even a layered slope with joint development reflected by block bonding. The rock mass side slope of the complex geological structure, such as a side slope containing discrete network cracks, a lamellar side slope, a soft-hard interbedded side slope and a complex side slope containing cracks, layers and holes, cannot be reproduced in the mode, and even the mechanical properties of the complex structural surface, such as the roughness of joints, the filling property of the cracks, the opening degree of the cracks and the like cannot be considered. In addition, the accuracy and consistency of the slope model are difficult to ensure by manual manufacturing, so that the similar slope model cannot represent the prototype slope, and the reliability of the research result is affected. Along with the continuous progress of technology, the 3D printing technology is widely applied in the civil engineering industry, has great potential in the aspect of slope model manufacture, but when the existing 3D printing technology is applied to slope model manufacture, the method still has some limitations that (1) a simple slope model of single material can be printed, challenges still exist for a slope with multiple materials to be printed, especially the mechanical properties of a structural surface cannot be considered, such as soft and hard inter-layer slopes, slopes with soft interlayer and slopes with filling cracks, and (2) the printing effect is still not ideal for a slope model of a complex geological structure, and the complex shape and structural characteristics of an actual rock slope, such as the establishment of a model of cracks, layers and holes, cannot be accurately reproduced. Furthermore, in the simulation test of the slope model vibrating table, the traditional camera monitoring method has obvious hysteresis. The method needs to process data after the test is finished, so that global stress, strain and damage of the slope in the test process can be obtained, the damage development of the slope in the test process can not be mastered in time, and whether the test result meets the expected effect can not be found in time. For example, in a test under one earthquake condition, if the slope damage starts to deviate from the expected effect, the conventional camera monitoring cannot feed back in time, and the test still completes all the earthquake conditions according to a predetermined plan, which can cause the test to be repeatedly performed, thereby increasing the test cost. Disclosure of Invention The invention aims to provide a rock mass side slope multifunctional simulation box and a side slope model manufacturing method thereof, which are used for solving the problems that the traditional manual side slope model manufacturing method is low in efficiency and poor in precision, and complex geological structures are difficult to reproduce. To achieve the purpose, the invention adopts the following technical scheme: a multi-functional simulation box for a rock slope, comprising: The top of the model box is provided with a two-dimensional horizontal moving platform, and the two-dimensional horizontal moving platform is provided with a printing platform; The intelligent printing mechanism comprises a model framework printing mechanism and a model body printing mechanism, wherein the model framework printing mechanism and the model body printing mechanism are both arranged on the printing platform; The real-time monitoring mechanism is arranged inside the model box and is used for observing the strain and damage of the slope model in the simulation test process in real time and transmitting the strain and damage to an external control terminal in real time. In some embodiments, the model skeleton printing mechanism comprises: the framework printing device connecting plate is fixedly connected with the printing platform; The model framework printing device comprises a framework printing platform and a framework bin arranged on the framework printing platform, wherein a framework spray head is arranged at the bottom of the framework bin and used for printing the model framework; The framework printing lifting motor is fixed on th