CN113643603A - Separated roadway physical experiment model structure, manufacturing assistive tool and manufacturing method - Google Patents

Separated roadway physical experiment model structure, manufacturing assistive tool and manufacturing method Download PDF

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Publication number
CN113643603A
CN113643603A CN202110894457.1A CN202110894457A CN113643603A CN 113643603 A CN113643603 A CN 113643603A CN 202110894457 A CN202110894457 A CN 202110894457A CN 113643603 A CN113643603 A CN 113643603A
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China
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rock mass
tunnel
mounting box
model structure
mounting
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CN202110894457.1A
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CN113643603B (en
Inventor
蒋力帅
牛庆佳
唐鹏
李杨杨
张广超
连小勇
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/40Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for geology
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30Auxiliary operations or equipment
    • B29C64/386Data acquisition or data processing for additive manufacturing
    • B29C64/393Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00Data acquisition or data processing for additive manufacturing
    • B33Y50/02Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

The application relates to a separated roadway physical experiment model structure, a manufacturing auxiliary tool and a manufacturing method, and belongs to the field of geotechnical engineering experiments. The model structure includes that model main part and tunnel support, and the model main part includes base and upper rock mass, and the upper rock mass adopts 3D to print the preparation, and integrated into one piece has a plurality of holes in the upper rock mass, sets up the mounting groove that supports the adaptation with the tunnel on the upper rock mass, and the tunnel supports fixed the setting in the mounting groove, and the upper rock mass has the top fixed connection of the base that one side and level that the tunnel supported were placed. The experimenter adopts 3D printing technique to print the preparation shaping with the upper strata rock mass in the model main part, can most completely reduce shape and quantity such as crack, hole everywhere in the rock mass, saves the experimenter and manually punches, supports model main part and tunnel again and assembles into wholly in proper order, carries out the physics experiment again, can reduce the tunnel top rock mass atress condition betterly, and this application has the effect that improves the experimental data accuracy.

Description

Separated roadway physical experiment model structure, manufacturing assistive tool and manufacturing method
Technical Field
The application relates to the field of geotechnical engineering experiments, in particular to a separated roadway physical experiment model structure, a manufacturing assistive tool and a manufacturing method.
Background
Rock, as a heterogeneous engineering material, often contains a large number of address defects, such as holes, fillers, cracks, joints, etc., inside it, which have a large effect on its strength and after its deformation failure characteristics. In tunnel construction and mine exploitation operation, a large number of personnel participate in a roadway excavated on a mountain, and various supporting structures in the roadway play a role in guaranteeing the life safety of constructors, so that the study on the properties of rock mechanics is of great importance for the stress analysis of supporting model construction in the roadway.
At present, aiming at the research of rock mass mechanics containing holes, a tunnel and a rock mass model are built by adopting a test block, and then holes are artificially drilled on the test block to simulate the hole distribution condition in a natural rock mass.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the number of the holes which are manually cut is limited, the holes are generally through holes with regular shapes, the through holes are greatly different from the holes in natural rock masses, and large errors can be caused to data of physical experiments.
Disclosure of Invention
In order to improve the accuracy of experimental data, the application provides a separate roadway physical experiment model structure, a manufacturing assistive device and a manufacturing method.
In a first aspect, a separated roadway physical experiment model structure adopts the following technical scheme:
the utility model provides a disconnect-type tunnel physics experiment model structure, supports including model main part and tunnel, the model main part includes base and upper rock mass, the upper rock mass adopts 3D to print the preparation, integrated into one piece has a plurality of holes in the upper rock mass, set up the mounting groove that supports the adaptation with the tunnel on the upper rock mass, the tunnel supports fixed the setting in the mounting groove, the upper rock mass has the top fixed connection of the base that one side and level that the tunnel supported were placed.
Through adopting above-mentioned technical scheme, the laboratory technician adopts 3D printing technique to print the preparation shaping with the upper strata rock mass in the model main part, can reduce shape and quantity such as crack, hole everywhere in the rock mass most completely, saves laboratory technician manual punching, supports model main part and tunnel and assembles into whole in proper order again, carries out the physics experiment, can reduce tunnel top rock mass atress condition betterly again, improves the experimental data accuracy.
Optionally, the upper rock mass comprises a plurality of unit bodies arranged in a parallel split mode in the vertical direction, the unit bodies are adjacent to each other, the unit bodies are fixedly connected with each other, and the holes are located between the adjacent two unit bodies.
By adopting the technical scheme, when the sand mold 3D printing technology is adopted to manufacture the upper rock mass, the upper rock mass is manufactured by split printing of multiple layers of unit bodies, the holes are formed in the partition surfaces between the unit bodies, after the unit bodies are printed, filling powder in the holes in the unit bodies can be cleaned out, then the unit bodies are bonded, the holes in the upper rock mass can be kept hollow, the state of the holes in the natural rock mass can be restored, meanwhile, sand molds and adhesives with different density ratios can be adopted for the unit bodies, different rock stratum properties in the rock mass can be simulated, and the accuracy of experimental data is further improved.
Optionally, the mounting groove is the cross, the setting is all opened to each tip of mounting groove, the tunnel supports the inner wall laminating with the mounting groove.
Through adopting above-mentioned technical scheme, when carrying out mechanics analysis experiment to the rock mass of cross intersection department in the tunnel, support mounting groove and tunnel on the upper strata rock mass and design for the shape with the same shape adaptation in tunnel, can carry out mechanics experiment analysis to the rock mass of tunnel intersection.
Optionally, the fixed joint strip that is provided with in edge that the tunnel supported, set up on the roof of base with the joint groove of joint strip adaptation, the joint strip cooperates with joint groove joint.
Through adopting above-mentioned technical scheme, support the installation as an organic whole back with upper rock mass and tunnel at the experimenter, fix upper rock mass and base as an organic whole again, when assembling upper rock mass and base, support the joint strip joint of bottom the tunnel in the joint groove on the base, can smear the bonding agent and assemble the upper rock mass on the base when the experimenter, effectively prevent in the mounting groove of bonding agent infiltration upper rock mass, can improve the experimental data accuracy.
In a second aspect, the present application provides an assistive device for manufacturing a physical experiment model structure of a separate type roadway, which adopts the following technical scheme:
the utility model provides a utensil is assisted in preparation of disconnect-type tunnel physics experiment model structure, includes the mounting box with model major dimension adaptation, the open-top of mounting box, the top of mounting box is provided with the hold-down mechanism that is used for from the open-top of mounting box to pushing down.
Through adopting above-mentioned technical scheme, when the experimenter assembles the model, support the tunnel earlier and put in the mounting box, smear the adhesive on the outer wall that the tunnel supported, put into the mounting box with the upper strata rock mass again, make the mounting groove on the mounting box align the tunnel and support and assemble, hold down mechanism on the rethread mounting box, support upper strata rock mass and tunnel and compress tightly to bonding stability, then squeeze into the anchor from the inboard upper strata rock mass of tunnel support and support, later put into the mounting box with the upper strata rock mass once more and bond, and compress tightly fixedly, the installation stability that model main part and tunnel supported is good, the experimental data is accurate.
Optionally, hold-down mechanism includes mounting bracket and clamp plate, the mounting bracket spanes the opening part that sets up at the mounting box, one end of mounting bracket is rotated with one side level of mounting box and is connected, the other end is provided with and is used for being connected fixed spacing subassembly with the mounting box, the clamp plate level sets up the below at the mounting bracket, the clamp plate slides along vertical direction and connects on the mounting bracket, be provided with the drive assembly who is used for ordering about the clamp plate lift on the mounting bracket.
Through adopting above-mentioned technical scheme, when the experimenter compresses tightly the operation to the upper rock mass etc. in the mounting box, rotate the mounting bracket earlier, rotate the mounting bracket to the opening top of mounting box to use spacing subassembly to fix the other end of mounting bracket on the mounting box, then order about the clamp plate through drive assembly and descend, can compress tightly the upper rock mass in the mounting box through the clamp plate, convenient operation.
Optionally, the driving assembly comprises a screw rod, a handle and a threaded sleeve, the threaded sleeve is vertically and fixedly arranged on the mounting frame, the screw rod threads penetrate through the threaded sleeve, one end of the screw rod is horizontally and rotatably connected with the pressing plate, and the other end of the screw rod is fixedly connected with the handle.
Through adopting above-mentioned technical scheme, when experimenter orders about the clamp plate and goes up and down, rotate the handle, through the screw rod and the transmission of the screw sleeve screw thread on the mounting bracket, can promote the clamp plate and slide downwards on the mounting bracket and support the upper rock mass in the tight mounting bracket, convenient operation.
Optionally, an overflow hole is formed in the side wall of the mounting box.
Through adopting above-mentioned technical scheme, the clamp plate compresses tightly upper rock mass etc. in the mounting box, makes each spare part in close contact with, outside excessive bonding agent that paints on the contact surface flowed out the mounting box through the overflow hole on the mounting box lateral wall, prevented effectively that mounting box inner wall from bonding such as upper rock mass, and the experimenter of being convenient for takes out upper rock mass etc..
Optionally, the bottom opening of the mounting box is provided, a bottom plate for opening and closing the bottom opening of the mounting box is arranged at the bottom of the mounting box, and the bottom plate is detachably connected with the mounting box.
Through adopting above-mentioned technical scheme, after the experimenter bonds upper strata rock mass etc. in the mounting box fixedly, dismantle the bottom plate of mounting box bottom, can promote inside upper strata rock mass etc. from the opening part of mounting box, conveniently take out the mounting box to upper strata rock mass etc. in the mounting box.
In a third aspect, the present application provides a method for manufacturing a physical experiment model structure of a separate type roadway, which adopts the following technical scheme:
a manufacturing method of a separate roadway physical experiment model structure comprises the following steps:
s1, scanning the rock mass in a roadway on site, and generating a rock mass three-dimensional model by scaling in equal proportion;
s2, 3D printing a base and an upper layer rock mass of the rock mass model main body, and manufacturing a roadway support;
s3, installing and fixing the upper rock mass and the roadway support, and then driving the anchoring support into the upper rock mass from the inside of the roadway support;
and S4, mounting and fixing the fixed upper rock mass and the base.
By adopting the technical scheme, the rock mass is scanned on site by adopting a CT scanning mode, a rock mass three-dimensional model with complete cracks and holes can be generated according to reality, and the rock mass model main body is printed out by adopting a sand type 3D printing technology, so that the holes, the cracks and the like in the model main body are consistent with the actual rock mass, the manual punching of experimenters is omitted, and more accurate experimental data can be obtained.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the experimental personnel adopt the 3D printing technology to print, manufacture and mold the upper rock mass on the model main body, so that the shapes and the number of cracks, holes and the like at each position in the rock mass can be reduced most completely, the manual punching of the experimental personnel is omitted, the model main body and the roadway support are sequentially spliced into a whole, and then the physical experiment is carried out, so that the stress condition of the rock mass above the roadway can be reduced better, and the accuracy of experimental data is improved;
2. when an experimenter assembles the model, firstly, a tunnel support is placed in a mounting box, an adhesive is smeared on the outer wall of the tunnel support, then an upper rock mass is placed in the mounting box, a mounting groove on the mounting box is aligned with the tunnel support for assembling, then the upper rock mass and the tunnel support are tightly pressed to be stably bonded through a pressing mechanism on the mounting box, then an anchoring support is driven from the inner side of the tunnel support to the upper rock mass, then a base and the upper rock mass are placed in the mounting box again for bonding and are tightly pressed and fixed, the mounting stability of the model main body and the tunnel support is good, and experimental data are accurate;
3. the rock mass is scanned on site by adopting a CT scanning mode, a rock mass three-dimensional model with complete cracks and holes can be generated according to reality, and after the rock mass three-dimensional model is scaled in equal proportion, the rock mass model main body is printed out by a sand type 3D printing technology, so that the holes, the cracks and the like on the model main body are consistent with the actual rock mass, the manual punching of experimenters is omitted, and more accurate experimental data can be obtained.
Drawings
Fig. 1 is a schematic front structure diagram of a roadway physical experiment model structure according to an embodiment of the present application.
Fig. 2 is an explosion structure schematic diagram of a roadway physical experiment model structure according to an embodiment of the present application.
Fig. 3 is a schematic overall structure diagram of an auxiliary tool according to an embodiment of the present application.
Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.
Fig. 5 is a schematic structural diagram of an operating state of the auxiliary tool according to the embodiment of the present application.
Description of reference numerals: 1. a model body; 11. a base; 111. a clamping groove; 12. an upper rock mass; 121. a unit body; 13. a hole; 2. supporting a roadway; 21. mounting grooves; 22. a clamping strip; 3. mounting a box; 31. an overflow aperture; 4. a hold-down mechanism; 41. a mounting frame; 42. pressing a plate; 43. a limiting component; 431. a bolt; 432. perforating; 44. a drive assembly; 441. a screw; 442. a handle; 443. a threaded sleeve; 45. a guide bar; 5. a base plate; 51. and (5) buckling.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses disconnect-type tunnel physics experiment model structure. Referring to fig. 1, the tunnel physical experiment model structure comprises a model main body 1 and a tunnel support 2, wherein the model main body 1 is formed by assembling a base 11 and an upper rock mass 12, and the upper rock mass 12 is formed by assembling a plurality of horizontally placed unit bodies 121. And a mounting groove 21 is formed in the bottom wall of the combined upper rock body 12, and a roadway support 2 is mounted in the mounting groove 21.
The model main part 1 is printed by sand mould 3D and is made, according to actual tunnel rock mass model in the forming process, reserves a plurality of holes 13 the same with actual rock mass in model main part 1, in order to reject the powder that remains in 3D printing in-process hole 13, hole 13 position all is located the interface between the unit body 121 on upper strata rock mass 12, and the unit body 121 interface of upper strata rock mass 12 still is used for the boundary of different terranes in the actual rock mass simultaneously.
The mounting groove 21 on the upper rock body 12 can be a word, a trigeminal and a cross, in this embodiment, the mounting groove 21 is designed according to an actual roadway, the mounting groove 21 is the cross, and each end of the mounting groove 21 is opened to the side of the upper rock body 12. The inner wall setting of the mounting groove 21 is laminated completely to the tunnel support 2, and in this embodiment, the cross-section of the tunnel support 2 is in a U shape.
Between each unit body 121 of upper strata rock mass 12, between upper strata rock mass 12 and base 11 and between upper strata rock mass 12 and tunnel support 2, all adopt the adhesive to bond fixedly, in order to keep material physical mechanical property in upper strata rock mass 12 to be similar with rock mass physical material in the actual tunnel, the adhesive adopts glue to mix fine sand preparation. Because the inner wall of the actual roadway is reinforced by the supporting layer, the roadway support 2 is used for properly increasing the strength of the whole model so as to simulate the supporting layer, and the accuracy of the mode experiment is improved.
In order to prevent that glue infiltration model tunnel from supporting 2, the tunnel supports 2 bottom edge an organic whole and is fixed with the joint strip 22 that exceeds mounting groove 21, and the edge that corresponds the tunnel on the roof of base 11 is equipped with the joint groove 111 unanimous with joint strip 22 size, degree of depth. When installing base 11 and upper strata rock mass 12, in the joint groove 111 is gone into to the joint strip 22 alignment joint, can prevent effectively that base 11 and upper strata rock mass 12 extrusion in-process from squeezing into the tunnel the bonding agent.
The implementation principle of a separate type roadway physical experiment model structure in the embodiment of the application is as follows: the experimenter adopts sand mould 3D printing technique to print the preparation shaping with upper strata rock mass 12 on the model main part 1, can save the manual punching of experimenter with shape and quantity such as crack, hole 13 everywhere in the most complete reduction rock mass, support model main part 1 and tunnel 2 and assemble into whole in proper order again, carry out the physics experiment again, can reduce the tunnel top rock mass atress condition betterly, improve the experimental data accuracy.
The embodiment of the application also discloses a manufacturing aid of the separated roadway physical experiment model structure. The manufacturing auxiliary tool comprises a mounting box 3, wherein the mounting box 3 is hollow, and the top and the bottom of the mounting box are open. The bottom of the mounting box 3 is detachably provided with a bottom plate 5 for opening and closing the bottom opening of the mounting box 3. The opening size of mounting box 3 is unanimous with the size of base 11 on the model main part 1, and base 11 level is placed in mounting box 3, and each unit body 121 of upper rock mass 12 all levels in proper order and superpose on base 11. The top of the mounting box 3 is provided with a pressing mechanism 4 which presses the model component in the mounting box 3 downwards from the upper opening of the mounting box 3.
In this embodiment, hold-down mechanism 4 includes mounting bracket 41 and clamp plate 42, and the one end of mounting bracket 41 is connected for rotating with mounting box 3, and the axis of rotation of mounting bracket 41 is parallel with the depth direction of mounting box 3, and the other end of mounting bracket 41 passes through spacing subassembly 43 and can dismantle with mounting box 3 and be connected. The limiting assembly 43 comprises a bolt 431, the other end of the mounting bracket 41 is provided with a through hole 432 for the bolt 431 to pass through, and the bolt 431 passes through the through hole 432 on the mounting bracket 41 and then is connected with the bolt 431 of the mounting box 3, so that the rotation of the mounting bracket 41 is limited.
Perpendicular welded fastening has guide bar 45 on the roof of clamp plate 42, offers the guiding hole with guide bar 45 adaptation on the mounting bracket 41, and the axis in guiding hole parallels with the axis of rotation of mounting bracket 41, and guide bar 45 slides and wears to establish in the guiding hole, and clamp plate 42 is located one side that mounting bracket 41 is close to mounting box 3. The mounting frame 41 is provided with a driving assembly 44 for driving the pressing plate 42 to vertically ascend and descend above the opening of the mounting box 3, and the driving assembly 44 in this embodiment comprises a screw 441, a handle 442 and a threaded sleeve 443. The threaded sleeve 443 is welded and fixed on the mounting frame 41, the axis of the threaded sleeve 443 is in accordance with the sliding direction of the pressing plate 42, the screw 441 is threaded through the threaded sleeve 443, one end of the screw 441 is rotatably connected with the pressing plate 42, and the other end of the screw is fixedly connected with the handle 442.
In other embodiments, the driving assembly 44 may also be an electric push rod, the electric push rod is fixedly mounted on the mounting frame 41, and a movable rod of the electric push rod penetrates through the mounting frame 41 and is fixedly connected to the pressure plate 42.
The bottom plate 5 and the mounting box 3 are detachably mounted, and in this embodiment, the bottom plate 5 and the mounting box 3 are connected by a buckle 51. The side walls of the two sides of the mounting box 3 are respectively riveted with a movable part of a buckle 51, and a fixed part of the buckle 51 is riveted and fixed on the bottom plate 5. Through unloading bottom plate 5, the experimenter can promote the model part in the mounting box 3 from the top opening part of mounting box 3, pushes out mounting box 3 with the model.
In order to prevent pressing tightly each part in-process of model, extrude the adhesive in to mounting box 3 and make each part of model and mounting box 3 bond as an organic wholely, still set up the inside overflow hole 31 of intercommunication mounting box 3 on the lateral wall of mounting box 3, through the local area of the 3 lateral walls of a plurality of overflow hole 31 fretwork mounting box, can reduce the bonding area of model and mounting box 3, improve the model and take out the convenience.
The implementation principle of the manufacturing auxiliary tool for the physical experiment model structure of the separated roadway in the embodiment of the application is as follows: when the experimenter assembles the model, earlier support the tunnel 2 and put in mounting box 3, smear the adhesive on the outer wall that the tunnel supported 2, put into mounting box 3 with upper strata rock mass 12 again, make mounting groove 21 on the mounting box 3 align the tunnel and support 2 and assemble. And then, the mounting frame 41 on the mounting box 3 is rotated to enable the mounting frame 41 to cross the mounting box 3, the mounting frame 41 is fixedly positioned on the mounting frame 41 by using the bolt 431, and then the handle 442 is rotated to be in threaded transmission with the threaded sleeve 443 on the mounting frame 41 through the screw 441, so that the pressing plate 42 is pressed downwards into the mounting box 3, and the upper rock body 12 and the roadway support 2 are pressed to be stably bonded. After the upper rock body 12 is firmly fixed with the roadway support 2, the pressing plate 42 is loosened, the mounting frame 41 is opened, the once-bonded upper rock body 12 is taken out from the mounting box 3, and then the anchoring support is driven into the upper rock body 12 from the inner side of the roadway support 2. Then the base 11 and the upper rock body 12 are put into the mounting box 3 again for secondary bonding, and the base and the upper rock body are pressed and fixed through the pressing plate 42. The installation stability of the model main body 1 and the roadway support 2 is good, and the experimental data is accurate.
The embodiment of the application also discloses a manufacturing method of the separated roadway physical experiment model structure. The method comprises the following steps:
s1, scanning a rock mass by adopting CT equipment on a roadway site, generating a rock mass three-dimensional model by scaling in equal proportion, processing the three-dimensional model, and determining a model printing support sequence;
s2, 3D printing the base 11 and the upper rock mass 12 of the rock mass model main body 1 by adopting a sand mold 3D printing technology, manufacturing a roadway support 2, horizontally layering the upper rock mass 12 into a plurality of unit bodies 121, and separating each unit body 121 for 3D printing forming;
s3, adhering and fixing each unit body 121 in the upper rock body 12 and the roadway support 2 by using an adhesive, wherein the adhesive is made of fine sand mixed glue, and after the upper rock body 12 and the roadway support 2 are adhered and molded, an anchoring support is driven into the upper rock body 12 from the inside of the roadway support 2;
and S4, adhering and fixing the fixed upper rock mass 12 and the base 11 by using an adhesive.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a disconnect-type tunnel physics experiment model structure which characterized in that: support (2) including model main part (1) and tunnel, model main part (1) includes base (11) and upper rock mass (12), upper rock mass (12) adopt 3D to print the preparation, integrated into one piece has a plurality of holes (13) in upper rock mass (12), set up mounting groove (21) that support (2) adaptation with the tunnel on upper rock mass (12), the tunnel supports (2) and fixes the setting in mounting groove (21), upper rock mass (12) have the tunnel and support the top fixed connection of one side of (2) and base (11) that the level was placed.
2. The physical experimental model structure of the separated roadway according to claim 1, characterized in that: the upper rock body (12) comprises a plurality of unit bodies (121) which are arranged in a parallel split mode in the vertical direction, every two adjacent unit bodies (121) are fixedly connected, and the hole (13) is located between every two adjacent unit bodies (121).
3. The physical experimental model structure of the separated roadway according to claim 1, characterized in that: mounting groove (21) are the cross, the setting is all opened to each tip of mounting groove (21), the tunnel supports (2) and the inner wall laminating of mounting groove (21).
4. The physical experimental model structure of the separated roadway according to claim 1, characterized in that: the fixed joint strip (22) that is provided with in edge that the tunnel supported (2), offer joint groove (111) with joint strip (22) adaptation on the roof of base (11), joint strip (22) and joint groove (111) joint cooperation.
5. An assistive device for manufacturing a separate type roadway physical experiment model structure, which comprises the separate type roadway physical experiment model structure as claimed in any one of claims 1 to 4, and is characterized in that: the mounting box comprises a mounting box (3) matched with a model main body (1) in size, wherein the top of the mounting box (3) is provided with a pressing mechanism (4) used for pressing downwards from the top of the mounting box (3).
6. The manufacturing assistive device for the physical experimental model structure of the separated roadway according to claim 5, characterized in that: hold-down mechanism (4) are including mounting bracket (41) and clamp plate (42), mounting bracket (41) span the opening part that sets up at mounting box (3), the one end of mounting bracket (41) is rotated with one side level of mounting box (3) and is connected, the other end is provided with and is used for being connected fixed spacing subassembly (43) with mounting box (3), clamp plate (42) level sets up the below at mounting bracket (41), clamp plate (42) slide along vertical direction and connect on mounting bracket (41), be provided with drive assembly (44) that are used for ordering about clamp plate (42) and go up and down on mounting bracket (41).
7. The manufacturing assistive device for the physical experimental model structure of the separated roadway according to claim 6, characterized in that: the driving assembly (44) comprises a screw rod (441), a handle (442) and a threaded sleeve (443), wherein the threaded sleeve (443) is vertically and fixedly arranged on the mounting frame (41), the screw rod (441) is threaded in the threaded sleeve (443), one end of the screw rod (441) is horizontally and rotatably connected with the pressing plate (42), and the other end of the screw rod is fixedly connected with the handle (442).
8. The manufacturing assistive device for the physical experimental model structure of the separated roadway according to claim 5, characterized in that: an overflow hole (31) is formed in the side wall of the mounting box (3).
9. The manufacturing assistive device for the physical experimental model structure of the separated roadway according to claim 5, characterized in that: the bottom opening of mounting box (3) sets up, the bottom of mounting box (3) is provided with bottom plate (5) that are used for switching mounting box (3) bottom opening, bottom plate (5) can be dismantled with mounting box (3) and be connected.
10. A manufacturing method of a separate type roadway physical experiment model structure is applied to the separate type roadway physical experiment model structure as claimed in any one of claims 1 to 4, and is characterized by comprising the following steps:
s1, scanning the rock mass in a roadway on site, and generating a rock mass three-dimensional model by scaling in equal proportion;
s2, 3D printing a base (11) of the rock mass model main body (1) and an upper layer rock mass (12), and manufacturing a roadway support (2);
s3, installing and fixing the upper rock mass (12) and the roadway support (2), and then driving an anchoring support into the upper rock mass (12) from the interior of the roadway support (2);
and S4, installing and fixing the fixed upper rock mass (12) and the base (11).
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