A model of a composite lining structure of a multi-arch tunnel with permeable ribs, a mold and a method

Abstract

The application provides a kind of through rib type multi-arch tunnel composite lining structure model, mold and method, adopt in base connection outer mold component, through base, outer mold component and middle mold component jointly form first annular closed cavity, the cavity is used to make the initial support structure of through rib type multi-arch tunnel composite lining structure model;Through outer mold component, inner mold component, rib beam component and base jointly form second annular closed cavity, the cavity is used to make the secondary lining structure of through rib type multi-arch tunnel composite lining structure model, finally form through rib type multi-arch tunnel composite lining structure model, make up about the lack and insufficiency of the similar model production technology of through rib type multi-arch tunnel composite lining structure in the existing research results, the model made by using the mold can provide technical basis for related through rib type multi-arch tunnel model test;The mold structure is stable, and the reliability is strong, has good popularization and application value.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of new shallow-buried mountain-adjacent type tunnel structure model test, and particularly relates to a through-ribbed multi-arch tunnel composite lining structure model, a mold and a method. BACKGROUND

[0002] In the development process of some areas, the shallow-buried mountain-adjacent type tunnel is constructed along the valley and the mountain valley in a large proportion. The construction technology of the shallow-buried mountain-adjacent type tunnel is new and different. In order to better realize the technical problems of coordinating the construction of engineering safety and the protection of the natural environment, a new tunnel structure, a through-ribbed multi-arch tunnel structure, is proposed. The through-ribbed multi-arch tunnel is a new semi-open semi-closed ribbed arch beam special tunnel structure type. The new tunnel has the advantages of adapting to steep terrain in mountainous areas, good ventilation and lighting effect, energy saving and environmental protection, etc.

[0003] The through-ribbed multi-arch tunnel structure is relatively complex. In the existing technical research, there is a lack of mature theoretical basis for the stress law of the partition wall and the ribbed beam structure, the stress law behind the lining, the existence of cavities and the cracking of the lining structure, etc. The through-ribbed multi-arch composite lining structure tunnel similar model test is one of the important means for the engineering structure design and theoretical research of the through-ribbed multi-arch tunnel. There are deficiencies in the existing technical research: (1) Most of the existing researches are about the test and theoretical research of the traditional symmetrical or asymmetrical multi-arch tunnel scale model with single lining or composite lining structure, while there is a lack of research on the scale model test and theoretical research of the through-ribbed multi-arch tunnel structure. There is also a lack of research on the forming process of the through-ribbed multi-arch tunnel composite lining structure model, in which the primary support and the secondary lining are poured and formed separately; (2) The ribbed beam structure is one of the important components of the through-ribbed multi-arch tunnel structure, and it is particularly important to study the stress performance of the ribbed beam structure. However, there is no research on the model test of the through-ribbed multi-arch tunnel in the existing research, which leads to a lack of research on the cracking mechanism and stress performance of the important structural parts such as the lining, the ribbed beam and the partition wall, and a lack of theoretical basis; (3) In the previous research, the mold is mostly made of steel. However, it is not easy to process and manufacture the mold for small size tunnel models, the precision is not enough, the manufacturing cost is high, and it is difficult to remove the mold after forming.

[0004] Therefore, for the test of the through-ribbed multi-arch composite lining structure tunnel model, due to the lack of the through-ribbed multi-arch tunnel composite lining structure and the structure model containing the ribbed beam, it is impossible to effectively study the through-ribbed multi-arch composite lining structure tunnel. SUMMARY

[0005] In order to solve the above technical problems, the present application provides a kind of through rib type multi-arch tunnel composite lining structure model, mould and method, using this mould can make out through rib type multi-arch tunnel composite lining structure and the structure model containing rib beam, using this structure model can effectively study for through rib type multi-arch composite lining structure tunnel.

[0006] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0007] A kind of mould of through rib type multi-arch tunnel composite lining structure model, including base, the base is connected with outer mould component;

[0008] When making the initial support structure of through rib type multi-arch tunnel composite lining structure model, the inner side of the outer mould component is inserted with middle mould component, and the middle mould component is connected with the base;The base, the outer mould component and the middle mould component form a first ring direction closed cavity together;

[0009] When making the secondary lining structure of through rib type multi-arch tunnel composite lining structure model, the inner side of the outer mould component is inserted with inner mould component connected with the base, and the inner mould component is connected with rib beam component;The arc outer side of the rib beam component is connected with the outer mould component, and the arc inner side is connected with the inner mould component, and the bottom is connected on the base;The outer mould component, the inner mould component, the rib beam component and the base form a second ring direction closed cavity together.

[0010] Further, the outer mould component includes first outer mould assembling block, second outer mould assembling block, third outer mould assembling block, fourth outer mould assembling block, fifth outer mould assembling block, sixth outer mould assembling block, seventh outer mould assembling block, eighth outer mould assembling block, ninth outer mould assembling block, tenth outer mould assembling block, eleventh outer mould assembling block and twelfth outer mould assembling block connected in sequence;The first outer mould assembling block is connected with one end of the arc outer side of the rib beam component;The twelfth outer mould assembling block is connected with the other end of the arc outer side of the rib beam component;

[0011] Dovetail recess is opened on the outer wall of the outer mould component, and dovetail is inserted in the dovetail recess.

[0012] Further, the middle mould component includes first middle mould assembling block, second middle mould assembling block, third middle mould assembling block, fourth middle mould assembling block, fifth middle mould assembling block, and sixth middle mould assembling block, seventh middle mould assembling block, eighth middle mould assembling block, ninth middle mould assembling block, tenth middle mould assembling block and eleventh middle mould assembling block connected in sequence.

[0013] Further, the inner mold assembly comprises a first inner mold assembling block, a second inner mold assembling block, a third inner mold assembling block and a fourth inner mold assembling block connected in sequence, and a fifth inner mold assembling block, a sixth inner mold assembling block, a seventh inner mold assembling block and an eighth inner mold assembling block connected in sequence; handles are arranged on the outer wall of the outer mold assembly, the inner wall of the middle mold assembly and the inner wall of the inner mold assembly;

[0014] The outer mold assembly, the middle mold assembly and the inner mold assembly are provided with limiting fixing clamping blocks in the annular circumferences thereof, and are provided with fixed clamping grooves in cooperation, for locking the outer mold assembly and the middle mold assembly and locking the outer mold assembly and the inner mold assembly.

[0015] The outer side of the outer mold assembly, the inner side of the middle mold assembly and the inner side of the inner mold assembly are provided with vertical fixing blocks.

[0016] Further, the rib beam assembly comprises a first set of rib beam top cover plates, a second set of rib beam top cover plates, a third set of rib beam top cover plates, a first support plate, a second support plate, a third support plate, a fourth support plate, a first integrated assembling block, a second integrated assembling block, a third integrated assembling block and a fourth integrated assembling block; the third integrated assembling block and the fourth integrated assembling block are inserted into the base; the third set of rib beam top cover plates are connected to the third integrated assembling block and the fourth integrated assembling block; the third support plate and the fourth support plate are connected to the left and right ends of the third set of rib beam top cover plates, the second integrated assembling block is connected to the third support plate and the fourth support plate, and the upper side of the second integrated assembling block is connected to the second set of rib beam top cover plates; the first support plate and the second support plate are connected to the left and right ends of the second set of rib beam top cover plates; the first integrated assembling block is connected above the first support plate and the second support plate, the first integrated assembling block is provided with a cover plate reserved hole at the top, the first set of rib beam top cover plates are provided with an assembling block reserved hole, and the first integrated assembling block is connected to the first set of rib beam top cover plates through the cover plate reserved hole and the assembling block reserved hole.

[0017] Further, the base is provided with an outer groove and an inner groove; the outer mold assembly is embedded and connected in the outer groove; when an initial support structure of a through rib type multi-arch tunnel composite lining structure model is made, the middle mold assembly is embedded and connected in the inner groove; when a secondary lining structure of a through rib type multi-arch tunnel composite lining structure model is made, the inner mold assembly and the rib beam assembly are embedded and connected in the inner groove.

[0018] A manufacturing method of a through rib type multi-arch tunnel composite lining structure model based on the mold of the through rib type multi-arch tunnel composite lining structure model, comprising:

[0019] S1: Assemble the outer mold assembly and the middle mold assembly, and fix them on the base in sequence, install the first steel wire mesh assembly in the first annular closed cavity;

[0020] S2: Pour the filler into the first annular closed cavity to form a initial setting structure, and keep the initial setting structure at constant temperature for curing, to form an initial support structure of the through rib type multi-arch tunnel composite lining structure model;

[0021] S3: Remove the middle mold assembly;

[0022] S4: Assemble the inner mold assembly and the rib beam assembly, and fix them on the base in sequence, install the second steel wire mesh assembly in the second annular closed cavity;

[0023] S5: Pour the filler into the second annular closed cavity to form a secondary lining structure, and keep the secondary lining structure at constant temperature for curing, to form a secondary lining structure of the through rib type multi-arch tunnel composite lining structure model;

[0024] S6: Remove the rib beam assembly, the inner mold assembly, the outer mold assembly and the base in sequence, and the manufacturing is completed.

[0025] Further, it further includes a pretreatment process before S1, and the specific steps are:

[0026] S01: Determine the similarity ratio of the model to the actual lining structure and the model size;

[0027] S02: According to the model size determined in S01, assemble the outer mold assembly, the middle mold assembly, the inner mold assembly, the rib beam assembly and the base respectively; the assembly jig of the outer mold assembly, the middle mold assembly, the inner mold assembly and the rib beam assembly is made of photocurable resin by 3D printing, and the assembly jig of the base is made of ABS resin by CNC machining.

[0028] S03: According to the test parameters obtained from the proportioning test, prepare a water paste ratio mixture, and use the water paste ratio mixture to prepare the filler;

[0029] S04: According to the contour structure of the first annular closed cavity and the second annular closed cavity, bind the steel wire to obtain the first steel wire mesh assembly and the second steel wire mesh assembly.

[0030] Further, the specific steps of S1 include:

[0031] The first outer mold assembly block, the second outer mold assembly block, the third outer mold assembly block, the fourth outer mold assembly block, the fifth outer mold assembly block, the sixth outer mold assembly block, the seventh outer mold assembly block, the eighth outer mold assembly block, the ninth outer mold assembly block, the tenth outer mold assembly block, the eleventh outer mold assembly block and the twelfth outer mold assembly block are sequentially connected by using a plurality of hole connection blocks; the first middle mold assembly block, the second middle mold assembly block, the third middle mold assembly block, the fourth middle mold assembly block and the fifth middle mold assembly block are sequentially connected, and the sixth middle mold assembly block, the seventh middle mold assembly block, the eighth middle mold assembly block, the ninth middle mold assembly block, the tenth middle mold assembly block and the eleventh middle mold assembly block are sequentially connected by using M5 cup mouth inner hexagonal screws, to assemble the outer mold assembly and the middle mold assembly, and the outer mold assembly is fixed in the outer groove of the base; the middle mold assembly is fixed in the inner groove of the base; the first steel wire mesh assembly is fixed in the first annular closed cavity;

[0032] The specific steps of S3 include: sequentially removing the fifth middle mold assembly block, the first middle mold assembly block, the second middle mold assembly block, the third middle mold assembly block and the fourth middle mold assembly block; and sequentially removing the sixth middle mold assembly block, the seventh middle mold assembly block, the eleventh middle mold assembly block, the tenth middle mold assembly block, the eighth middle mold assembly block and the ninth middle mold assembly block.

[0033] The specific steps of S4 include: sequentially connecting the first inner mold assembly block, the second inner mold assembly block, the third inner mold assembly block and the fourth inner mold assembly block, and the fifth inner mold assembly block, the sixth inner mold assembly block, the seventh inner mold assembly block and the eighth inner mold assembly block; and fixing the inner mold assembly in the inner groove of the base.

[0034] The third integrated assembly block is connected and fixed with the first outer mold assembly block and the twelfth outer mold assembly block, the fourth integrated assembly block is connected and fixed with the first inner mold assembly block and the fourth inner mold assembly block, then a screw is inserted into the cover plate reserved hole in the top of the third rib beam and the assembly block reserved hole reserved in the third integrated assembly block and the fourth integrated assembly block to be fixed and connected; the upper end of the three support plates is fixed and connected with the first outer mold assembly block, a screw is inserted into the cover plate reserved hole of the third support plate and the assembly block reserved hole of the first inner mold assembly block to be fixed and connected, a screw is inserted into the cover plate reserved hole of the fourth support plate and the assembly block reserved hole of the twelfth outer mold assembly block and the fourth inner mold assembly block to be fixed and connected, and the assembly of the third rib beam is completed.

[0035] The second integral assembly block is fixedly connected with the first outer mold assembly block and the twelfth outer mold assembly block on the outside and with the first inner mold assembly block and the fourth inner mold assembly block on the inside, and then the screw is inserted into the cover plate reserved hole of the first rib beam top cover plate and the assembly block reserved hole of the first integral assembly block to be fixedly connected, and the first rib beam top cover plate is fixedly connected with the twelfth outer mold assembly block and the first inner mold assembly block, so that the assembly of the first rib beam is completed; the inner mold assembly is fixed in the inner groove of the base, and the rib beam assembly is fixed in the outer groove of the base; and the second steel wire mesh assembly is fixed in the second annular closed cavity B.

[0036] The second integral assembly block is fixedly connected with the first outer mold assembly block and the twelfth outer mold assembly block on the outside and with the first inner mold assembly block and the fourth inner mold assembly block on the inside, and then the screw is inserted into the cover plate reserved hole of the first rib beam top cover plate and the assembly block reserved hole of the first integral assembly block to be fixedly connected, and the first rib beam top cover plate is fixedly connected with the twelfth outer mold assembly block and the first inner mold assembly block, so that the assembly of the first rib beam is completed; the inner mold assembly is fixed in the inner groove of the base, and the rib beam assembly is fixed in the outer groove of the base; and the second steel wire mesh assembly is fixed in the second annular closed cavity B.

[0037] The specific steps of S6 include: sequentially removing the first rib beam top cover plate, the first support plate, the second support plate, the first integral assembly block, the second rib beam top cover plate, the third support plate, the fourth support plate, the second integral assembly block, the third rib beam top cover plate, the third integral assembly block and the fourth integral assembly block.

[0038] The fourth inner mold assembly block, the first inner mold assembly block, the second inner mold assembly block and the third inner mold assembly block are sequentially removed, and the fifth inner mold assembly block, the sixth inner mold assembly block, the seventh inner mold assembly block and the eighth inner mold assembly block are sequentially removed.

[0039] The first outer mold assembly block, the second outer mold assembly block, the third outer mold assembly block, the fourth outer mold assembly block, the sixth outer mold assembly block, the fifth outer mold assembly block, the seventh outer mold assembly block, the eighth outer mold assembly block, the twelfth outer mold assembly block, the eleventh outer mold assembly block, the ninth outer mold assembly block and the tenth outer mold assembly block are sequentially removed.

[0040] The base is removed, and the fabrication is completed.

[0041] A kind of through rib type multi-arch tunnel composite lining structure model, is made using the fabrication method of the above-mentioned through rib type multi-arch tunnel composite lining structure model.

[0042] Compared with the prior art, the present application has the following beneficial effects:

[0043] The application provides a mold for a composite lining structure model of a rib-penetrating multi-arch tunnel, the mold is characterized in that: an outer mold assembly is connected to a base, a first annular closed cavity A is formed by the base, the outer mold assembly and a middle mold assembly, and the cavity A is used for manufacturing an initial support structure of the composite lining structure model of the rib-penetrating multi-arch tunnel; a second annular closed cavity B is formed by the outer mold assembly, an inner mold assembly, a rib beam assembly and the base, and the cavity B is used for manufacturing a secondary lining structure of the composite lining structure model of the rib-penetrating multi-arch tunnel, and finally the composite lining structure model of the rib-penetrating multi-arch tunnel is formed, so that the lack and deficiency of the similar model manufacturing technology of the composite lining structure of the rib-penetrating multi-arch tunnel in the existing research results are made up, and the model manufactured by the mold can provide a technical basis for related rib-penetrating multi-arch tunnel model tests; the mold has stable structure, high reliability and good popularization and application value.

[0044] Preferably, the outer mold assembly, the middle mold assembly and the inner mold assembly in the mold are connected by splicing through splicing blocks and are fixed by screw connection with hole connecting pieces, so that each splicing block can be perfectly and stably attached to the contact surface, dislocation is avoided, the precision of the model is high, the mold assembly bottom is embedded into the corresponding groove of the base to form a complete and stable annular closed cavity, the mold structure is simple, the mold assembly can be disassembled, assembled and reused, the use rate of the mold can be improved, and the cost of tunnel model manufacturing can be saved.

[0045] Preferably, dovetail grooves are formed on the outer wall of the outer mold assembly, and dovetails matched with the dovetail grooves are inserted into the dovetail grooves, so that the connection structure of the outer mold assembly is more stable.

[0046] Preferably, handles are arranged on the outer wall of the outer mold assembly, the inner wall of the middle mold assembly and the inner wall of the inner mold assembly, so that the model can be demolded after being manufactured.

[0047] Preferably, limiting and fixing clamping blocks are arranged on the annular circumferences of the outer mold assembly, the middle mold assembly and the inner mold assembly, and fixed clamping grooves are arranged in cooperation, so that the outer mold assembly 1 is prevented from deforming to the outside and the middle mold assembly 2 or the inner mold assembly is prevented from deforming to the inside during pouring.

[0048] Perpendicular fixing blocks are arranged on the inner sides of the outer mold assembly, the middle mold assembly and the inner mold assembly, so that the outer mold assembly 1, the middle mold assembly 2 and the inner mold assembly 3 are guaranteed to be perpendicular to the base 5, and the precision of model forming is improved.

[0049] The application further provides a manufacturing method of a composite lining structure model of a rib-penetrating multi-arch tunnel.

[0050] Preferably, the assembling of the outer mold assembly, the middle mold assembly, the inner mold assembly and the rib beam assembly of the mold is made by 3D printing with photocuring resin, and the assembling of the base is made by CNC processing with ABS resin.

[0051] The application further provides a composite lining structure model of a rib-penetrating multi-arch tunnel, which is manufactured by the above manufacturing method. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 A flow chart of the manufacturing method of the composite lining structure model of the rib-penetrating multi-arch tunnel is provided for the embodiments of the application.

[0053] Fig. 2 is a structure schematic view of the outer mold assembly and the middle mold assembly of the mold of the composite lining structure model of the rib-penetrating multi-arch tunnel provided by the embodiments of the application, wherein Fig. 2(a) is a top view and Fig. 2(b) is a three-dimensional structure schematic view (including a fixed groove base).

[0054] Fig. 3 is a structure schematic view of the outer mold assembly, the inner mold assembly and the rib beam assembly of the mold of the composite lining structure model of the rib-penetrating multi-arch tunnel provided by the embodiments of the application, wherein Fig. 3(a) is a top view and Fig. 3(b) is a three-dimensional structure schematic view (including a fixed groove base).

[0055] Figure 4 Fig. 4 is a partial enlarged view of the rib beam assembly of the mold of the composite lining structure model of the rib-penetrating multi-arch tunnel provided by the embodiments of the application.

[0056] Figure 5 is a structural schematic diagram of a rib beam assembly of a mold of a composite lining structure model of a through-ribbed multi-arch tunnel according to an embodiment of the present application, wherein Figure 5(a) is a three-dimensional structural schematic diagram of the rib beam assembly viewed from the outside, and Figure 5(b) is a three-dimensional structural schematic diagram of the rib beam assembly viewed from the inside;

[0057] Figure 6 Figure 6 is a three-dimensional structural schematic diagram of a base of a mold of a composite lining structure model of a through-ribbed multi-arch tunnel according to an embodiment of the present application;

[0058] Figure 7 is a structural schematic diagram of steel wire mesh inside a composite lining structure model of a through-ribbed multi-arch tunnel according to an embodiment of the present application, wherein Figure 7(a) is a three-dimensional structural schematic diagram of steel wire mesh at left and right hole primary support and inverted arch primary support and middle partition wall, and Figure 7(b) is a three-dimensional structural schematic diagram of steel wire mesh at left and right hole secondary lining and inverted arch and three pieces of rib beam model structure;

[0059] Figure 8 Figure 8 is a structural schematic diagram of a composite lining structure model of a through-ribbed multi-arch tunnel according to an embodiment of the present application;

[0060] Figure 9 Figure 9 is a flowchart of a manufacturing method of a composite lining structure model of a through-ribbed multi-arch tunnel according to the present application.

[0061] Reference signs:

[0062] Outer mold assembly-1; middle mold assembly-2; inner mold assembly-3; rib beam assembly-4; base-5;

[0063] First outer mold assembly block-101; second outer mold assembly block-102; third outer mold assembly block-103; fourth outer mold assembly block-104; fifth outer mold assembly block-105; sixth outer mold assembly block-106; seventh outer mold assembly block-107; eighth outer mold assembly block-108; ninth outer mold assembly block-109; tenth outer mold assembly block-110; eleventh outer mold assembly block-111; twelfth outer mold assembly block-112;

[0064] First middle mold assembly block-201; second middle mold assembly block-202; third middle mold assembly block-203; fourth middle mold assembly block-204; fifth middle mold assembly block-205; sixth middle mold assembly block-206; seventh middle mold assembly block-207; eighth middle mold assembly block-208; ninth middle mold assembly block-209; tenth middle mold assembly block-210; eleventh middle mold assembly block-211;

[0065] First inner mold assembly block-301; second inner mold assembly block-302; third inner mold assembly block-303; fourth inner mold assembly block-304; fifth inner mold assembly block-305; sixth inner mold assembly block-306; seventh inner mold assembly block-307; eighth inner mold assembly block-308;

[0066] First rib beam top cover plate-401; second rib beam top cover plate-402; third rib beam top cover plate-403; first support plate-404; second support plate-405; third support plate-406; fourth support plate-407; first integrated assembly block-408; second integrated assembly block-409; third integrated assembly block-410; fourth integrated assembly block-411; cover plate reserved hole-41; assembly block reserved hole-42;

[0067] Outer groove-501; inner groove-502;

[0068] Hole connecting block-601; handle-602; vertical fixing block-603; limiting fixing clamping block-604; fixing clamping groove-605; positioning rod-606; positioning hole-607; dovetail-608; dovetail groove-609; plastic film-610; steel wire-611;

[0069] First steel wire mesh assembly-I; second steel wire mesh assembly-II; right hole steel wire mesh-IIa; left hole steel wire mesh-IIb; first ring-closed cavity-A; second ring-closed cavity-B. DETAILED DESCRIPTION

[0070] The present application provides a mold for a through-rib continuous-arch tunnel composite lining structure model, comprising a base 5, wherein the base 5 is connected with an outer mold assembly 1;

[0071] When manufacturing the primary support structure of the through-rib continuous-arch tunnel composite lining structure model, a middle mold assembly 2 is inserted into the inner side of the outer mold assembly 1, and the middle mold assembly 2 is connected with the base 5; the base 5, the outer mold assembly 1 and the middle mold assembly 2 jointly form a first ring-closed cavity A;

[0072] When manufacturing the secondary lining structure of the through-rib continuous-arch tunnel composite lining structure model, an inner mold assembly 3 connected with the base 5 is inserted into the inner side of the outer mold assembly 1, and the inner mold assembly 3 is connected with a rib beam assembly 4; the arc-shaped outer side of the rib beam assembly 4 is connected with the outer mold assembly 1, the arc-shaped inner side is connected with the inner mold assembly 3, and the bottom is connected with the base 5; the outer mold assembly 1, the inner mold assembly 3, the rib beam assembly 4 and the base 5 jointly form a second ring-closed cavity B.

[0073] The specific structure of the outer mold assembly 1 comprises: first outer mold assembly blocks 101, second outer mold assembly blocks 102, third outer mold assembly blocks 103, fourth outer mold assembly blocks 104, fifth outer mold assembly blocks 105, sixth outer mold assembly blocks 106, seventh outer mold assembly blocks 107, eighth outer mold assembly blocks 108, ninth outer mold assembly blocks 109, tenth outer mold assembly blocks 110, eleventh outer mold assembly blocks 111 and twelfth outer mold assembly blocks 112 connected in sequence; the first outer mold assembly blocks 101 are connected with one end of the arc-shaped outer side of the rib beam assembly 4; the twelfth outer mold assembly blocks 112 are connected with the other end of the arc-shaped outer side of the rib beam assembly 4; the outer wall of the outer mold assembly 1 is provided with dovetail groove 609, and the dovetail groove 609 is provided with dovetail 608 matched therewith.

[0074] The specific structure of the middle mold assembly 2 comprises first middle mold assembly blocks 201, second middle mold assembly blocks 202, third middle mold assembly blocks 203, fourth middle mold assembly blocks 204, fifth middle mold assembly blocks 205 connected in sequence, and sixth middle mold assembly blocks 206, seventh middle mold assembly blocks 207, eighth middle mold assembly blocks 208, ninth middle mold assembly blocks 209, tenth middle mold assembly blocks 210 and eleventh middle mold assembly blocks 211 connected in sequence.

[0075] The inner mold assembly 3 comprises first inner mold assembly blocks 301, second inner mold assembly blocks 302, third inner mold assembly blocks 303 and fourth inner mold assembly blocks 304 connected in sequence, and fifth inner mold assembly blocks 305, sixth inner mold assembly blocks 306, seventh inner mold assembly blocks 307 and eighth inner mold assembly blocks 308 connected in sequence; the outer wall of the outer mold assembly 1, the inner wall of the middle mold assembly 2 and the inner wall of the inner mold assembly 3 are all provided with handles 602;

[0076] In particular, the outer mold assembly 1, the middle mold assembly 2 and the inner mold assembly 3 are all provided with limiting fixing blocks 604 in the annular circumferential direction, and are matched with fixing grooves 605 to lock the outer mold assembly 1 and the middle mold assembly 2 and lock the outer mold assembly 1 and the inner mold assembly 3; and the outer side of the outer mold assembly 1, the inner side of the middle mold assembly 2 and the inner side of the inner mold assembly 3 are all provided with vertical fixing blocks 603.

[0077] The specific structure of the rib beam assembly 4 comprises: a first rib beam top cover plate 401, a second rib beam top cover plate 402, a third rib beam top cover plate 403, a first support plate 404, a second support plate 405, a third support plate 406, a fourth support plate 407, a first integrated assembly block 408, a second integrated assembly block 409, a third integrated assembly block 410 and a fourth integrated assembly block 411; the third integrated assembly block 410 and the fourth integrated assembly block 411 are both inserted on the base 5; the third rib beam top cover plate 403 is connected on the third integrated assembly block 410 and the fourth integrated assembly block 411; the third support plate 406 and the fourth support plate 407 are connected on the left and right ends of the third rib beam top cover plate 403; the second integrated assembly block 409 is connected on the third support plate 406 and the fourth support plate 407, and the second integrated assembly block 409 is connected with the second rib beam top cover plate 402 above; the first support plate 404 and the second support plate 405 are connected on the left and right ends of the second rib beam top cover plate 402; the first integrated assembly block 408 is connected above the first support plate 404 and the second support plate 405; the first integrated assembly block 408 is provided with a cover plate reserved hole 41 on the top; the first rib beam top cover plate 401 is provided with an assembly block reserved hole 42; and the first integrated assembly block 408 is connected with the first rib beam top cover plate 401 through the cover plate reserved hole 41 and the assembly block reserved hole 42.

[0078] The base 5 is provided with an outer groove 501 and an inner groove 502; the outer mold assembly 1 is embedded and connected in the outer groove 501; when the primary support structure of the through rib type multi-arch tunnel composite lining structure model is made, the middle mold assembly 2 is embedded and connected in the inner groove 502; when the secondary lining structure of the through rib type multi-arch tunnel composite lining structure model is made, the inner mold assembly 3 and the rib beam assembly 4 are embedded and connected in the inner groove 502.

[0079] The application provides a kind of through rib type multi-arch tunnel composite lining structure model of making method, based on above-mentioned one kind of through rib type multi-arch tunnel composite lining structure model of mould, as shown in Figure 9 It includes:

[0080] S01: determine the similarity ratio of model and actual lining structure and the size of model;

[0081] S02: according to the size of model determined in S01, the assembly block of outer mold assembly 1, middle mold assembly 2, inner mold assembly 3, rib beam assembly 4 and base 5 is made respectively;The assembly block of outer mold assembly 1, middle mold assembly 2, inner mold assembly 3 and rib beam assembly 4 is made by 3D printing using photocuring resin, and the assembly block of base 5 is made by CNC processing using ABS resin.

[0082] S03: Prepare a water-to-solid ratio mixture based on the test parameters obtained from the mixing ratio test, and use the water-to-solid ratio mixture to prepare filler;

[0083] S04: Based on the contour structure of the first circumferentially closed cavity A and the second circumferentially closed cavity B, the steel wire 611 is bound to obtain the first steel wire mesh assembly I and the second steel wire mesh assembly II.

[0084] S1: Assemble the outer mold assembly 1 and the middle mold assembly 2, and fix them sequentially on the base 5. Install the first wire mesh assembly I in the first circumferentially closed cavity A.

[0085] S2: Pour filling material into the first circumferentially closed cavity A to form a preliminary setting structure, and cure the preliminary setting structure at a constant temperature to form the initial support structure of the permeable ribbed arch tunnel composite lining structure model.

[0086] S3: Remove the middle mold component 2;

[0087] S4: Assemble the inner mold assembly 3 and the rib assembly 4, and fix them sequentially on the base 5. Install the second wire mesh assembly II in the second circumferentially closed cavity B.

[0088] S5: Pour filling material into the second annular closed cavity B to form a secondary lining structure, and cure the secondary lining structure at a constant temperature to form the secondary lining structure of the through-ribbed arch tunnel composite lining structure model.

[0089] S6: Sequentially remove the rib assembly 4, inner mold assembly 3, outer mold assembly 1, and base 5 to complete the manufacturing process.

[0090] It should be noted that each of the above steps is further subdivided into specific steps, as follows:

[0091] The specific steps of S1 include:

[0092] The first outer mold assembly block 101, the second outer mold assembly block 102, the third outer mold assembly block 103, the fourth outer mold assembly block 104, the fifth outer mold assembly block 105, the sixth outer mold assembly block 106, the seventh outer mold assembly block 107, the eighth outer mold assembly block 108, the ninth outer mold assembly block 109, the tenth outer mold assembly block 110, the eleventh outer mold assembly block 111 and the twelfth outer mold assembly block 112 are sequentially connected by using a plurality of hole connecting blocks 601; the first middle mold assembly block 201, the second middle mold assembly block 202, the third middle mold assembly block 203, the fourth middle mold assembly block 204 and the fifth middle mold assembly block 205 are sequentially connected by using a plurality of hole connecting blocks 601, the sixth middle mold assembly block 206, the seventh middle mold assembly block 207, the eighth middle mold assembly block 208, the ninth middle mold assembly block 209, the tenth middle mold assembly block 210 and the eleventh middle mold assembly block 211 are sequentially connected, and are fixed by using M5 cup mouth inner hexagonal screws to assemble the outer mold assembly 1 and the middle mold assembly 2, and the outer mold assembly 1 is fixed in the outer groove 501 of the base 5; the middle mold assembly 2 is fixed in the inner groove 502 of the base 5; the first steel wire mesh assembly I is fixed in the first annular closed cavity A;

[0093] The specific steps of S3 include sequentially removing the fifth middle mold assembly block 205, the first middle mold assembly block 201, the second middle mold assembly block 202, the third middle mold assembly block 203 and the fourth middle mold assembly block 204, and sequentially removing the sixth middle mold assembly block 206, the seventh middle mold assembly block 207, the eleventh middle mold assembly block 211, the tenth middle mold assembly block 210, the eighth middle mold assembly block 208 and the ninth middle mold assembly block 209.

[0094] The specific steps of S4 include sequentially connecting the first inner mold assembly block 301, the second inner mold assembly block 302, the third inner mold assembly block 303 and the fourth inner mold assembly block 304, and the fifth inner mold assembly block 305, the sixth inner mold assembly block 306, the seventh inner mold assembly block 307 and the eighth inner mold assembly block 308; the inner mold assembly 3 is fixed in the inner groove 502 of the base 5;

[0095] The third integrated assembling block 410 is fixedly connected with the first outer mold assembling block 101 and the twelfth outer mold assembling block 112, the fourth integrated assembling block 411 is fixedly connected with the first inner mold assembling block 301 and the fourth inner mold assembling block 304, then the screw is inserted into the reserved cover plate reserved hole 41 around the top cover plate 403 of the third rib beam and the reserved assembling block reserved hole 42 of the third integrated assembling block 410 and the fourth integrated assembling block 411 to be fixedly connected; the upper end of the third support plate 406 is fixedly connected with the first outer mold assembling block 101, the screw is inserted into the cover plate reserved hole 41 of the third support plate 406 and the assembling block reserved hole 42 of the first inner mold assembling block 301 to be fixedly connected, the screw is inserted into the cover plate reserved hole 41 of the fourth support plate 407 and the assembling block reserved hole 42 of the twelfth outer mold assembling block 112 and the fourth inner mold assembling block 304 to be fixedly connected, and the assembly of the third rib beam is completed;

[0096] The outer side of the second integrated assembling block 409 is fixedly connected with the first outer mold assembling block 101 and the twelfth outer mold assembling block 112 of the outer mold assembly 1, and the inner side is fixedly connected with the first inner mold assembling block 301 and the fourth inner mold assembling block 304 of the inner mold assembly 3, the screw is inserted into the reserved cover plate reserved hole 41 around the top cover plate 402 of the second rib beam and the reserved assembling block reserved hole 42 around the second integrated assembling block 409 to be fixedly connected; the upper end of the first support plate 404 is fixedly connected with the first outer mold assembling block 101, the screw is inserted into the cover plate reserved hole 41 of the lower end of the first support plate 404 and the assembling block reserved hole 42 of the first inner mold assembling block 301 to be fixedly connected, the screw is inserted into the cover plate reserved hole 41 of the second support plate 405 and the assembling block reserved hole 42 of the twelfth outer mold assembling block 112 and the fourth inner mold assembling block 304 to be fixedly connected, and the assembly of the second rib beam is completed;

[0097] The outer side of the first integrated assembling block 408 is fixedly connected with the first outer mold assembling block 101 and the twelfth outer mold assembling block 112, and the inner side is fixedly connected with the first inner mold assembling block 301 and the fourth inner mold assembling block 304, then the screw is inserted into the cover plate reserved hole 41 of the first rib beam top cover plate 401 and the assembling block reserved hole 42 of the first integrated assembling block 408 to be fixedly connected, the first rib beam top cover plate 401 is fixedly connected with the twelfth outer mold assembling block 112 and the first inner mold assembling block 301, and the assembly of the first rib beam is completed; the inner mold assembly 3 is fixedly arranged in the inner groove 502 of the base 5, and the rib beam assembly 4 is fixedly arranged in the outer groove 501 of the base 5; the second steel wire mesh assembly II is fixedly arranged in the second annular closed cavity B;

[0098] The specific steps of S6 include: sequentially removing the first rib beam top cover plate 401, the first support plate 404, the second support plate 405, the first integrated assembly block 408, the second rib beam top cover plate 402, the third support plate 406, the fourth support plate 407, the second integrated assembly block 409, the third rib beam top cover plate 403, the third integrated assembly block 410 and the fourth integrated assembly block 411;

[0099] The fourth inner mold assembly block 304, the first inner mold assembly block 301, the second inner mold assembly block 302 and the third inner mold assembly block 303 are sequentially removed, and the fifth inner mold assembly block 305, the sixth inner mold assembly block 306, the seventh inner mold assembly block 307 and the eighth inner mold assembly block 308 are sequentially removed;

[0100] The first outer mold assembly block 101, the second outer mold assembly block 102, the third outer mold assembly block 103, the fourth outer mold assembly block 104, the sixth outer mold assembly block 106, the fifth outer mold assembly block 105, the seventh outer mold assembly block 107, the eighth outer mold assembly block 108, the twelfth outer mold assembly block 112, the eleventh outer mold assembly block 111, the ninth outer mold assembly block 109 and the tenth outer mold assembly block 110 are sequentially removed, and the base 5 is removed, and the manufacturing is completed.

[0101] The application further provides a through-rib multi-arch tunnel composite lining structure model, which is manufactured by using the manufacturing method of the through-rib multi-arch tunnel composite lining structure model.

[0102] The application will be further described in detail below with reference to the drawings:

[0103] Embodiment

[0104] In view of the problem that the through-rib multi-arch tunnel composite lining structure and the structure model containing the rib beam cannot be effectively researched, the embodiment provides a manufacturing method of a through-rib multi-arch tunnel composite lining structure model, as shown in Figure 1 The specific steps are as follows:

[0105] Step one: determining the geometric similarity ratio and the similar model size of the through-rib multi-arch tunnel composite lining structure model: according to the structure size of the prototype tunnel, that is, the width is 28080mm and the height is 10560mm, and considering the size of the plane strain model test bench and the boundary effect, the geometric similarity ratio of the model is determined to be 1:40, the similar size of the through-rib multi-arch tunnel composite lining structure model is determined to be 702mm in width, 264mm in height and 330mm in longitudinal length, and the longitudinal width of each rib beam structure model is 30mm;

[0106] Step two: design the size of the similar model mold assembly, and the selection and production of mold materials: according to the geometric similarity ratio determined in step one, the size of the similar model assembly mold is designed. As shown in FIG. 2(a), FIG. 2(b), FIG. 3(a), FIG. 3(b), Figure 4 , FIG. 5(a), Figure 5(b) and 6 As shown in FIG. 2(a), FIG. 2(b), FIG. 3(a), FIG. 3(b),

[0107] As shown in FIG. 2(a) and FIG. 2(b), the outer mold assembly 1 is composed of a first outer mold assembly block 101, a second outer mold assembly block 102, a third outer mold assembly block 103, a fourth outer mold assembly block 104, a fifth outer mold assembly block 105, a sixth outer mold assembly block 106, a seventh outer mold assembly block 107, an eighth outer mold assembly block 108, a ninth outer mold assembly block 109, a tenth outer mold assembly block 110, an eleventh outer mold assembly block 111, and a twelfth outer mold assembly block 112, a plurality of hole connecting blocks 601, and 30mm long M5 type cup inner hexagonal screws. The outer mold assembly is assembled and spliced, wherein the outer side of the outer mold assembly is attached with a handle 602 for facilitating vertical extraction during mold disassembly;

[0108] The middle mold assembly 2 is composed of a first middle mold assembly block 201, a second middle mold assembly block 202, a third middle mold assembly block 203, a fourth middle mold assembly block 204, a fifth middle mold assembly block 205, a sixth middle mold assembly block 206, a seventh middle mold assembly block 207, an eighth middle mold assembly block 208, a ninth middle mold assembly block 209, a tenth middle mold assembly block 210, and an eleventh middle mold assembly block 211, a plurality of hole connecting blocks 601, and 30mm long M5 type cup inner hexagonal screws. The middle mold assembly 2 is assembled and spliced, and the bottom of the middle mold assembly 2 is provided with a plurality of positioning rods 606 for fixing the middle mold assembly 2 with corresponding positioning holes 607 in the base 5. The inner side of the middle mold assembly is attached with a handle 602 for facilitating vertical extraction during mold disassembly;

[0109] As shown in FIG. 2(a), FIG. 2(b), FIG. 3(a), FIG. 3(b), Figure 3(a) and 3(b) The inner mold assembly 3 is composed of a first inner mold assembly block 301, a second inner mold assembly block 302, a third inner mold assembly block 303, and a fourth inner mold assembly block 304, as well as a fifth inner mold assembly block 305, a sixth inner mold assembly block 306, a seventh inner mold assembly block 307, and an eighth inner mold assembly block 308, a plurality of hole connecting blocks 601, and a 30mm long M5 type cup inner hexagonal screw. The inner side of the inner mold assembly 3 is also attached with a handle 602 for facilitating vertical extraction during mold disassembly;

[0110] As Figure 4 As shown in Fig. 5, the ribbed beam assembly 4 is assembled by three sets of ribbed beam assembly blocks (from top to bottom, the first set, the second set and the third set), four support plates (the first support plate 404, the second support plate 405, the third support plate 406 and the fourth support plate 407) and a plurality of hole connecting blocks 601 and 30mm long M5 cup socket hexagonal screws, wherein the first set of ribbed beam assembly blocks includes the first integrated assembly block 408 and the first ribbed beam top cover plate 401, the second set of ribbed beam assembly blocks includes the second integrated assembly block 409 and the second ribbed beam top cover plate 402, and the third set of ribbed beam assembly blocks includes the third integrated assembly block 410, the fourth integrated assembly block 411 and the third ribbed beam top cover plate 403; as Figure 6 As shown in Fig. 5, the base 5 has an outer groove 501 and an inner groove 502 and a plurality of corresponding positioning holes 607;

[0111] As shown in Figs. 2-5, the first outer mold assembly block 101, the second outer mold assembly block 102, the third outer mold assembly block 103, the fourth outer mold assembly block 104, the fifth outer mold assembly block 105, the sixth outer mold assembly block 106, the seventh outer mold assembly block 107, the eighth outer mold assembly block 108, the ninth outer mold assembly block 109, the tenth outer mold assembly block 110, the eleventh outer mold assembly block 111 and the twelfth outer mold assembly block 112, the first middle mold assembly block 201, the second middle mold assembly block 202, the third middle mold assembly block 203, the fourth middle mold assembly block 204, the fifth middle mold assembly block 205 are connected in turn, the sixth middle mold assembly block 206, the seventh middle mold assembly block 207, the eighth middle mold assembly block 208, the ninth middle mold assembly block 209, the tenth middle mold assembly block 210 and the eleventh middle mold assembly block 211, the first inner mold assembly block 301, the second inner mold assembly block 302, the third inner mold assembly block 303 and the fourth inner mold assembly block 304, and the fifth inner mold assembly block 305, the sixth inner mold assembly block 306, the seventh inner mold assembly block 307 and the eighth inner mold assembly block 308, the first integrated assembly block 408 and the first ribbed beam top cover plate 401, the second integrated assembly block 409 and the second ribbed beam top cover plate 402, the third integrated assembly block 410, the fourth integrated assembly block 411 and the third ribbed beam top cover plate 403, the shapes of the above-mentioned components are all circular arcs or special-shaped plates, and they are connected and fixed by 30mm long M5 cup socket hexagonal screws passing through a plurality of hole connecting blocks 601 designed at the joint parts of the assembly blocks, so that the assembly blocks can be well connected and fixed, the contact surfaces of the modules do not dislocate, and an ideal annular closed cavity profile is formed;

[0112] As shown in Figure 2, the outer mold assembly 1 and the middle mold assembly 2 are fixed by the top limiting fixed clamping block 604 clamped in the corresponding reserved fixed clamping groove 605 at the top, preventing the outer mold assembly 1 from deforming outward and the middle mold assembly 2 from deforming inward during pouring; similarly, as shown in Figure 3, the outer mold assembly 1 and the inner mold assembly 3 are fixed by the top limiting fixed clamping block 604 clamped in the corresponding reserved fixed clamping groove 605 at the top, preventing the outer mold assembly 1 from deforming outward and the inner mold assembly 3 from deforming inward, improving the precision of model forming; the top limiting fixed clamping block 604 is removed before the outer mold assembly 1, the middle mold assembly 2 and the inner mold assembly 3 are removed;

[0113] As shown in Figure 2, the dovetail 608 attached to the outer mold assembly 1 is inserted into the corresponding dovetail groove 609, which aims to better provide certain ring stiffness for the overall structure of the outer mold assembly 1, preventing the loosening of the joint seams of the assembled blocks of the outer mold assembly 1 during pouring;

[0114] As shown in Figures 2-3, the outer side of the outer mold assembly 1, the inner side of the middle mold assembly 2 and the inner side of the inner mold assembly 3 are attached with vertical fixed blocks 603, which aims to solve the problem of perpendicularity after assembling the components, making the outer mold assembly 1, the middle mold assembly 2 and the inner mold assembly 3 as perpendicular as possible to the base 5, improving the precision of model forming;

[0115] Step three: select similar materials for the model: through indoor proportioning test, determine the water plaster ratio according to the similar ratio of specific weight, elastic modulus and Poisson's ratio, use the water plaster ratio mixture to simulate the corresponding concrete strength grade of the composite lining structure of the through ribbed multi-arch tunnel, then prepare the model filling material according to the determined water plaster ratio;

[0116] Step four: design and bind the first steel wire mesh assembly I (I-type steel wire mesh) and the second steel wire mesh assembly II (II-type steel wire mesh), the first steel wire mesh assembly I and the second steel wire mesh assembly II mainly simulate the steel structure in the tunnel in this model: respectively bind the first steel wire mesh assembly I and the second steel wire mesh assembly II in the first ring-closed cavity A and the second ring-closed cavity B, the first steel wire mesh assembly I is integral, and the second steel wire mesh assembly II is composed of two steel wire meshes of left hole and right hole; the first steel wire mesh assembly I and the second steel wire mesh assembly II are both bound by steel wires 611 with a diameter of 1mm;

[0117] As shown in Figure 7(a) and Figure 7(b), the first steel mesh assembly I and the second steel mesh assembly II are tied and made as follows: first, the foam cubic block is cut into the same contour outer surface as the first annular closed cavity A and the second annular closed cavity B using a special foam cutting knife, and the steel mesh is preliminarily tied and fixed on the cut foam cubic block contour outer surface. The first steel mesh assembly I is tied to the steel mesh of the initial support and inverted arch of the left hole and the right hole, and then the steel mesh of the middle partition wall is tied, so that the three are tied and connected as a whole first steel mesh assembly I; the second steel mesh assembly II is tied to the right hole steel mesh IIa and the left hole steel mesh IIb respectively, and the right hole steel mesh IIa and the left hole steel mesh IIb are separate whole steel mesh;

[0118] Step five: assemble the outer mold assembly 1, the middle mold assembly 2 and the base 5: the bottom of the outer mold assembly 1 is embedded in the outer groove 501 of the base 5, and the dovetail 608 is put into the corresponding dovetail groove 609 of the outer mold assembly; the bottom end of the middle mold assembly 2 is fixed by inserting a plurality of positioning rods 606 into the positioning holes 607 on the base 5 to form a ring-closed contour, i.e. the first annular closed cavity A. After assembly, high-adhesion waterproof tape is pasted on both sides of the adjacent joint of each assembly, the first annular closed cavity A is coated with a release agent, and then the first steel mesh assembly I is placed and fixed in the first annular closed cavity A at a specified position. Finally, the top limiting fixing block 604 is placed and fixed in the fixing slot 605;

[0119] Step six: pouring the initial support, inverted arch initial support and middle partition wall structure model: pour the water paste mixture prepared in step three into the first annular closed cavity A formed by the outer mold assembly 1, the middle mold assembly 2 and the base 5 in step five to form an initial setting structure model, and then place it in a constant temperature oven for curing for 7 days;

[0120] Step seven: remove the middle mold assembly 2: after the initial support, inverted arch initial support and middle partition wall structure model is cured and formed and the strength reaches the standard, remove the top fixing block 604 and remove the middle mold assembly 2;

[0121] The middle mold assembly 2 is removed in the following order:

[0122] The left hole middle mold assembly is removed in the following order: fifth middle mold assembly block 205→ first middle mold assembly block 201→ second middle mold assembly block 202→ third middle mold assembly block 203→ fourth middle mold assembly block 204; the right hole middle mold assembly is removed in the following order: sixth middle mold assembly block 206→ seventh middle mold assembly block 207→ eleventh middle mold assembly block 211→ tenth middle mold assembly block 210→ eighth middle mold assembly block 208→ ninth middle mold assembly block 209;

[0123] Step eight: assemble the inner mold assembly 3 and the rib beam assembly 4: the bottom of the inner mold assembly 3 is embedded in the inner groove 502 of the base 5, the bottom of the third integral assembly block 410 and the fourth integral assembly block 411 of the third rib beam (from top to bottom, the first, second and third) of the rib beam assembly 4 are respectively embedded in the outer groove 501 and the inner groove 502 for fixation, the outer mold assembly 1, the inner mold assembly 3, the rib beam assembly 4 and the base 5 form the second annular closed cavity B; before assembling the 3 rib beams of the rib beam assembly 4, the right hole steel mesh IIa is fixed at the set position of the second annular closed cavity B, and the first integral assembly block 408 and the second integral assembly block 409 are coated with release agent; after assembly, high-adhesion waterproof tape is pasted on the inner and outer sides of the adjacent assembly block joints of the rib beam assembly 4 and the outer mold assembly 1 and the inner mold assembly 3, the release agent is brushed on the inner wall of the mold assembly block of the second annular closed cavity B, then the left hole steel mesh IIb is fixed at the set position of the second annular closed cavity B, and finally the top limiting fixing block 604 is placed in the fixing slot 605;

[0124] The assembly sequence of the rib beam assembly 4 is as follows: assembly of the third rib beam, the 30mm long M5 cup-shaped internal hexagonal screw is inserted through the hole connecting block 601 to tighten the third integral assembly block 410 and the first outer mold assembly block 101 and the twelfth outer mold assembly block 112 of the outer mold assembly 1, the fourth integral assembly block 411 and the first inner mold assembly block 301 and the fourth inner mold assembly block 304 of the inner mold assembly 3 are connected and fixed, then the 10mm long M5 cup-shaped internal hexagonal screw is inserted into the cover plate reserved hole 41 around the top cover plate 403 of the third rib beam and the assembly block reserved hole 42 reserved in the third integral assembly block 410 and the fourth integral assembly block 411 for tightening and fixed connection; install the third support plate 406 and the fourth support plate 407, the upper end of the third support plate 406 and the first outer mold assembly block 101 of the outer mold assembly 1 are connected by the 30mm long M5 cup-shaped internal hexagonal screw inserted through the hole connecting block 601, the 10mm long M5 cup-shaped internal hexagonal screw is inserted into the cover plate reserved hole 41 at the lower end of the third support plate 406 and the assembly block reserved hole 42 reserved in the first inner mold assembly block 301 of the inner mold assembly 3 for tightening and fixed connection, the 10mm long M5 cup-shaped internal hexagonal screw is inserted into the cover plate reserved hole 41 around the fourth support plate 407 and the assembly block reserved hole 42 reserved in the twelfth outer mold assembly block 112 of the outer mold assembly 1 and the fourth inner mold assembly block 304 of the inner mold assembly 3 for tightening and fixed connection;

[0125] The assembly of the second rib beam is fixed by tightening the 30mm long M5 cup socket head cap screws through the hole connection block 601, connecting the outer side of the second integrated assembly block 409 with the first outer mold assembly block 101 and the twelfth outer mold assembly block 112 of the outer mold assembly 1, and connecting the inner side with the first inner mold assembly block 301 and the fourth inner mold assembly block 304 of the inner mold assembly 3, then inserting the 10mm long M5 cup socket head cap screws into the reserved cover plate reserved holes 41 around the second rib beam top cover plate 402 and the assembly block reserved holes 42 around the second integrated assembly block 409 to tighten and fix the connection; install the first support plates 404 and 405, the upper end of the first support plate 404 is connected with the first outer mold assembly block 101 of the outer mold assembly 1 through the 30mm long M5 cup socket head cap screws through the hole connection block 601, and the 10mm long M5 cup socket head cap screws are inserted into the lower end of the first support plate 404 reserved cover plate reserved holes 41 and the first inner mold assembly block 301 of the inner mold assembly 3 reserved assembly block reserved holes 42 to tighten and fix the connection, and the 10mm long M5 cup socket head cap screws are inserted into the reserved cover plate reserved holes 41 around the second support plate 405 and the twelfth outer mold assembly block 112 of the outer mold assembly 1 and the fourth inner mold assembly block 304 of the inner mold assembly 3 reserved assembly block reserved holes 42 to tighten and fix the connection;

[0126] The assembly of the first rib beam is fixed by tightening the 30mm long M5 cup socket head cap screws through the hole connection block 601, connecting the outer side of the first integrated assembly block 408 with the first outer mold assembly block 101 and the twelfth outer mold assembly block 112 of the outer mold assembly 1, and connecting the inner side with the first inner mold assembly block 301 and the fourth inner mold assembly block 304 of the inner mold assembly 3, then inserting the 10mm long M5 cup socket head cap screws into the reserved cover plate reserved holes 41 around the first rib beam top cover plate 401 and the assembly block reserved holes 42 around the first integrated assembly block 408 to tighten and fix the connection, then the first rib beam top cover plate 401 is connected with the twelfth outer mold assembly block 112 of the outer mold assembly 1 and the first inner mold assembly block 301 of the inner mold assembly 3 through the 30mm long M5 cup socket head cap screws through the corresponding hole connection block 601;

[0127] Step nine: pouring the secondary lining, rib beam, enlarged foundation, crash wall, vault longitudinal beam and anti-falling stone block integral structure model: pour the new configuration of the water paste ratio mixture prepared in step three into the second annular closed cavity B profile formed by the outer mold assembly 1, the inner mold assembly 3, the rib beam assembly 4 and the base 5 to form initial setting; before pouring, a layer of white transparent plastic film 610 is pasted on the inner side wall surface of the initial support structure model poured and formed in step six; then the permeable rib type multi-arch tunnel composite lining structure integral model is put into a constant temperature box for curing for 7 days;

[0128] Step ten: sequentially remove the rib beam assembly 4, the inner mold assembly 3, the outer mold assembly 1 and the base 5: after the whole model of the composite lining structure of the through ribbed multi-arch tunnel is cured and formed and the strength reaches the standard, the top limiting fixing block 605 and the dovetail 608 are removed, and the rib beam assembly 4, the inner mold assembly 3, the outer mold assembly 1 and the base 5 are sequentially removed, and the whole model of the composite lining structure of the through ribbed multi-arch tunnel is obtained, as shown in Figure 8

[0129] The rib beam assembly 4 is sequentially removed in the following order:

[0130] The first rib beam top cover plate 401, the first support plate 404 and the second support plate 405, the first integrated assembly block 408, the second rib beam top cover plate 402, the third support plate 406 and the fourth support plate 407, the second integrated assembly block 409, the third rib beam top cover plate 403, the third integrated assembly block 410 and the fourth integrated assembly block 411.

[0131] The inner mold assembly 3 is sequentially removed in the following order:

[0132] The left hole inner mold assembly is sequentially removed in the following order: the fourth inner mold assembly block 304, the first inner mold assembly block 301, the second inner mold assembly block 302 and the third inner mold assembly block 303; the right hole inner mold assembly is sequentially removed in the following order: the fifth inner mold assembly block 305, the sixth inner mold assembly block 306, the eighth inner mold assembly block 308 and the seventh inner mold assembly block 307.

[0133] The outer mold assembly 1 is sequentially removed in the following order:

[0134] All the dovetails 608 on the outer side, the first outer mold assembly block 101, the second outer mold assembly block 102, the third outer mold assembly block 103, the fourth outer mold assembly block 104, the sixth outer mold assembly block 106, the fifth outer mold assembly block 105, the seventh outer mold assembly block 107, the eighth outer mold assembly block 108, the twelfth assembly block 112, the eleventh outer mold assembly block 111, the ninth outer mold assembly block 109 and the tenth outer mold assembly block 110.

[0135] The whole model of the composite lining structure of the through ribbed multi-arch tunnel is sequentially removed in the following order:

[0136] The middle mold assembly 2, the rib beam assembly 4, the inner mold assembly 3, the outer mold assembly 1 and the base 5.

[0137] The embodiment provides a mold of a composite lining structure model of a through ribbed multi-arch tunnel, and has the beneficial effects compared with the prior art:

[0138] ​(1) Provide technical support for the production of relevant permeable ribbed multi-arch tunnel structure models, especially the production of permeable ribbed multi-arch tunnel composite lining structures and ribbed beam structure models, and provide a technical basis for related permeable ribbed multi-arch tunnel model tests;

[0139] (2) Make up for the lack and deficiency of the production technology of the permeable ribbed multi-arch tunnel composite lining structure similar model in the existing research results;

[0140] (3) The mold assembly blocks are connected and fixed by M5 cup hexagonal screws through the corresponding hole connectors attached to them, so that each assembly block contact surface is perfectly and stably attached, and will not be misaligned, the precision of the molding of each part of the model is high, the mold assembly bottom is embedded in the corresponding groove profile of the groove bottom seat, forming a complete and stable ring-shaped closed cavity; and the mold structure is simple, can be disassembled and assembled for repeated use, improves the utilization rate of the mold, and saves the cost of tunnel model production;

[0141] (4) The mold production materials are 3D printing light curing resin and ABS resin, which are easy to process and form, have high mold production precision, and are light in quality, easy to demold, do not damage the permeable ribbed multi-arch tunnel structure model, and ensure the accuracy of the test results.

[0142] Similarly, the production method of the permeable ribbed multi-arch tunnel composite lining structure model provided by the embodiment has a clear pouring process, and the designed mold and pouring process can well realize the production and molding of the permeable ribbed multi-arch tunnel primary support and secondary lining composite lining structure, ribbed beam structure and other structures; the mold has a clear disassembly process, the designed disassembly process makes the disassembly of the mold more convenient, and the disassembly process will not damage the molded tunnel model, especially the disassembly process of the three ribbed beams, which well avoids the damage of the connection between the ribbed beam structure and the lining and the crash wall, and improves the molding precision of the model.

[0143] Therefore, the mold structure provided by the embodiment has a clear assembly and disassembly process, is easy to form a composite lining structure tunnel model, can realize the pouring of the permeable ribbed multi-arch tunnel composite lining structure model and the ribbed beam structure model, makes up for the lack and deficiency of the production technology of the permeable ribbed multi-arch tunnel composite lining structure similar model in the existing research results, and proposes a model design and production method which can more truly reflect and study the stress characteristics of the permeable ribbed multi-arch tunnel lining structure and the cracking law of the lining and ribbed beam structure parts, provides a technical basis for related permeable ribbed multi-arch composite lining structure tunnel model tests.

[0144] Although the embodiments of the present application have been described above with reference to the drawings and the embodiments, the present application is not limited to the above-described specific embodiments and application fields, and the above-described specific embodiments are merely illustrative, instructive, and not restrictive. Those skilled in the art can make various forms under the guidance of the specification without departing from the scope of the claims of the present application, and these are all included in the protection of the present application.

Claims

1. A mold for a model of a composite lining structure of a multi-arch tunnel with permeable ribs, characterized by, The base (5) is connected with an outer mold assembly (1); When the initial support structure of the composite lining structure model of the ribbed multi-arch tunnel is made, the middle mold assembly (2) is inserted in the inner side of the outer mold assembly (1), and the middle mold assembly (2) is connected with the base (5); the base (5), the outer mold assembly (1) and the middle mold assembly (2) jointly form a first annular closed cavity (A); When the secondary lining structure of the composite lining structure model of the ribbed multi-arch tunnel is made, the inner mold assembly (3) connected with the base (5) is inserted in the inner side of the outer mold assembly (1), and the rib beam assembly (4) is connected with the inner mold assembly (3); the arc outer side of the rib beam assembly (4) is connected with the outer mold assembly (1), the arc inner side is connected with the inner mold assembly (3), and the bottom is connected on the base (5); the outer mold assembly (1), the inner mold assembly (3), the rib beam assembly (4) and the base (5) jointly form a second annular closed cavity (B).

2. The mold of the composite lining structure model of the through-ribbed multi-arch tunnel according to claim 1, characterized in that, The outer mold assembly (1) comprises first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh and twelfth outer mold assembly blocks (101-112) connected in sequence; the first outer mold assembly block (101) is connected with one end of the arc outer side of the rib beam assembly (4); the twelfth outer mold assembly block (112) is connected with the other end of the arc outer side of the rib beam assembly (4); The outer wall of the outer mold assembly (1) is provided with a dovetail groove (609), and a dovetail (608) matched with the dovetail groove (609) is inserted in the dovetail groove (609).

3. The mold of a permeable ribbed multi-arch tunnel composite lining structure model according to claim 2, characterized in that, The middle mold assembly (2) comprises first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth and eleventh middle mold assembly blocks (201-211) connected in sequence.

4. The mold of the composite lining structure model of the permeable ribbed multi-arch tunnel according to claim 3, characterized in that, The inner mold assembly (3) comprises first, second, third and fourth inner mold assembly blocks (301-304) connected in sequence, and fifth, sixth, seventh and eighth inner mold assembly blocks (305-308) connected in sequence; the outer wall of the outer mold assembly (1), the inner wall of the middle mold assembly (2) and the inner wall of the inner mold assembly (3) are all provided with a handle (602). The outer mold assembly (1), the middle mold assembly (2) and the inner mold assembly (3) are provided with limiting fixing blocks (604) in the annular circumference, and are provided with fixed clamping grooves (605) in cooperation, for locking the outer mold assembly (1) and the middle mold assembly (2) and locking the outer mold assembly (1) and the inner mold assembly (3); The outer side of the outer mold assembly (1), the middle mold assembly (2) and the inner side of the inner mold assembly (3) are provided with vertical fixing blocks (603).

5. The mold of a permeable ribbed multi-arch tunnel composite lining structure model according to claim 4, characterized in that, The rib beam assembly (4) comprises a first set of rib beam top cover plates (401), a second set of rib beam top cover plates (402), a third set of rib beam top cover plates (403), a first support plate (404), a second support plate (405), a third support plate (406), a fourth support plate (407), a first integrated assembly block (408), a second integrated assembly block (409), a third integrated assembly block (410) and a fourth integrated assembly block (411); the third integrated assembly block (410) and the fourth integrated assembly block (411) are inserted on the base (5); the third set of rib beam top cover plates (403) are connected to the third integrated assembly block (410) and the fourth integrated assembly block (411); the third support plate (406) and the fourth support plate (407) are connected to the left and right ends of the third set of rib beam top cover plates (403), the second integrated assembly block (409) is connected to the third support plate (406) and the fourth support plate (407), and the second integrated assembly block (409) is connected to the second set of rib beam top cover plates (402) above; the first support plate (404) and the second support plate (405) are connected to the left and right ends of the second set of rib beam top cover plates (402); the first integrated assembly block (408) is connected above the first support plate (404) and the second support plate (405), the first integrated assembly block (408) is provided with an assembly block reserved hole (42) at the top, the first set of rib beam top cover plates (401) are provided with a cover plate reserved hole (41), and the first integrated assembly block (408) is connected to the first set of rib beam top cover plates (401) through the cover plate reserved hole (41) and the assembly block reserved hole (42).

6. The mold for the model of the composite lining structure of the rib-webbed multi-arch tunnel according to claim 1, characterized in that, The base (5) is provided with an outer groove (501) and an inner groove (502); the outer mold assembly (1) is embedded and connected in the outer groove (501); when the primary support structure of the through rib type multi-arch tunnel composite lining structure model is made, the middle mold assembly (2) is embedded and connected in the inner groove (502); when the secondary lining structure of the through rib type multi-arch tunnel composite lining structure model is made, the inner mold assembly (3) and the rib beam assembly (4) are embedded and connected in the inner groove (502).

7. A method for making a model of a composite lining structure of a multi-arch tunnel with permeable ribs, based on a mold for a model of a composite lining structure of a multi-arch tunnel with permeable ribs according to any one of claims 1 to 6, characterized in that, Comprise: S1: Assemble the outer mold assembly (1) and the middle mold assembly (2), and fix them on the base (5) in sequence, install the first steel wire mesh assembly (I) in the first annular closed cavity (A); S2: Pour the filler into the first annular closed cavity (A) to form a initial setting structure, and keep the initial setting structure at constant temperature for curing, to form the initial support structure of the through rib type multi-arch tunnel composite lining structure model; S3: Remove the middle mold assembly (2); S4: Assemble the inner mold assembly (3) and the rib beam assembly (4), and fix them on the base (5) in sequence, install the second steel wire mesh assembly (II) in the second annular closed cavity (B); S5: Pour the filler into the second annular closed cavity (B) to form a secondary lining structure, and keep the secondary lining structure at constant temperature for curing, to form the secondary lining structure of the through rib type multi-arch tunnel composite lining structure model; S6: Remove the rib beam assembly (4), the inner mold assembly (3), the outer mold assembly (1) and the base (5) in sequence, and the production is completed.

8. The method according to claim 7, wherein the method is characterized by: The pre-treatment process before S1 is also included, and the specific steps are: S01: Determine the similarity ratio of the model to the actual lining structure and the model size; S02: According to the model size determined in S01, assemble blocks of the outer mold assembly (1), the middle mold assembly (2), the inner mold assembly (3), the rib beam assembly (4) and the base (5) are respectively made; the assembling blocks of the outer mold assembly (1), the middle mold assembly (2), the inner mold assembly (3) and the rib beam assembly (4) are made of photocurable resin by 3D printing, and the assembling blocks of the base (5) are made of ABS resin by CNC processing; S03: According to the test parameters obtained from the proportioning test, make a water paste ratio mixture, and use the water paste ratio mixture to make the filler; S04: According to the contour structure of the first annular closed cavity (A) and the second annular closed cavity (B), the steel wire (611) is bound to obtain the first steel wire mesh assembly (I) and the second steel wire mesh assembly (II).

9. The method according to claim 7, wherein the method is characterized by: The specific steps of S1 include: The first outer mold assembly block (101), the second outer mold assembly block (102), the third outer mold assembly block (103), the fourth outer mold assembly block (104), the fifth outer mold assembly block (105), the sixth outer mold assembly block (106), the seventh outer mold assembly block (107), the eighth outer mold assembly block (108), the ninth outer mold assembly block (109), the tenth outer mold assembly block (110), the eleventh outer mold assembly block (111) and the twelfth outer mold assembly block (112) are sequentially connected by using a plurality of hole connecting blocks (601); the first middle mold assembly block (201), the second middle mold assembly block (202), the third middle mold assembly block (203), the fourth middle mold assembly block (204) and the fifth middle mold assembly block (205) are sequentially connected, and the sixth middle mold assembly block (206), the seventh middle mold assembly block (207), the eighth middle mold assembly block (208), the ninth middle mold assembly block (209), the tenth middle mold assembly block (210) and the eleventh middle mold assembly block (211) are sequentially connected and fixed by using an M5 cup mouth inner hexagonal screw, to assemble the outer mold assembly (1) and the middle mold assembly (2), and the outer mold assembly (1) is fixed in the outer groove (501) of the base (5); the middle mold assembly (2) is fixed in the inner groove (502) of the base (5); the first steel wire mesh assembly (I) is fixed in the first annular closed cavity (A); The specific steps of S3 include: sequentially removing the fifth middle mold assembly block (205), the first middle mold assembly block (201), the second middle mold assembly block (202), the third middle mold assembly block (203) and the fourth middle mold assembly block (204); sequentially removing the sixth middle mold assembly block (206), the seventh middle mold assembly block (207), the eleventh middle mold assembly block (211), the tenth middle mold assembly block (210), the eighth middle mold assembly block (208) and the ninth middle mold assembly block (209); The specific steps of S4 include: sequentially connecting the first inner mold assembly block (301), the second inner mold assembly block (302), the third inner mold assembly block (303) and the fourth inner mold assembly block (304), and the fifth inner mold assembly block (305), the sixth inner mold assembly block (306), the seventh inner mold assembly block (307) and the eighth inner mold assembly block (308); fixing the inner mold assembly (3) in the inner groove (502) of the base (5); The third integrated assembling block (410) is connected and fixed with the first outer mold assembling block (101) and the twelfth outer mold assembling block (112), the fourth integrated assembling block (411) is connected and fixed with the first inner mold assembling block (301) and the fourth inner mold assembling block (304), then a screw is inserted into the cover plate reserved hole (41) reserved around the top cover plate (403) of the third rib beam and the assembling block reserved hole (42) reserved in the third integrated assembling block (410) and the fourth integrated assembling block (411) and fixed connection is achieved; the upper end of the third supporting plate (406) is fixedly connected with the first outer mold assembling block (101), the screw is inserted into the cover plate reserved hole (41) of the third supporting plate (406) and the assembling block reserved hole (42) of the first inner mold assembling block (301) and fixed connection is achieved, the screw is inserted into the cover plate reserved hole (41) of the fourth supporting plate (407) and the assembling block reserved hole (42) of the twelfth outer mold assembling block (112) and the fourth inner mold assembling block (304) and fixed connection is achieved, and the assembly of the third rib beam is completed; The outer side of the second integrated assembling block (409) is connected and fixed with the first outer mold assembling block (101) and the twelfth outer mold assembling block (112) of the outer mold assembly (1), the inner side is connected and fixed with the first inner mold assembling block (301) and the fourth inner mold assembling block (304) of the inner mold assembly (3), a screw is inserted into the cover plate reserved hole (41) reserved around the top cover plate (402) of the second rib beam and the assembling block reserved hole (42) reserved around the second integrated assembling block (409) and fixed connection is achieved; the upper end of the first supporting plate (404) is fixedly connected with the first outer mold assembling block (101), the screw is inserted into the cover plate reserved hole (41) of the lower end of the first supporting plate (404) and the assembling block reserved hole (42) of the first inner mold assembling block (301) and fixed connection is achieved, the screw is inserted into the cover plate reserved hole (41) of the second supporting plate (405) and the assembling block reserved hole (42) of the twelfth outer mold assembling block (112) and the fourth inner mold assembling block (304) and fixed connection is achieved, and the assembly of the second rib beam is completed; The outer side of the first integrated assembling block (408) is connected and fixed with the first outer mold assembling block (101) and the twelfth outer mold assembling block (112), the inner side is connected and fixed with the first inner mold assembling block (301) and the fourth inner mold assembling block (304), then a screw is inserted into the cover plate reserved hole (41) of the first rib beam top cover plate (401) and the assembling block reserved hole (42) of the first integrated assembling block (408) and fixed connection is achieved, the first rib beam top cover plate (401) is fixedly connected with the twelfth outer mold assembling block (112) and the first inner mold assembling block (301), and the assembly of the first rib beam is completed; the inner mold assembly (3) is fixed in the inner groove (502) of the base (5), the rib beam assembly (4) is fixed in the outer groove (501) of the base (5); the second steel wire mesh assembly (II) is fixed in the second annular closed cavity (B); The specific steps of S6 include: sequentially removing the first set of rib beam top cover plate (401), the first support plate (404), the second support plate (405), the first integrated assembly block (408), the second set of rib beam top cover plate (402), the third support plate (406), the fourth support plate (407), the second integrated assembly block (409), the third set of rib beam top cover plate (403), the third integrated assembly block (410) and the fourth integrated assembly block (411); sequentially removing the fourth inner mold assembly block (304), the first inner mold assembly block (301), the second inner mold assembly block (302) and the third inner mold assembly block (303), and sequentially removing the fifth inner mold assembly block (305), the sixth inner mold assembly block (306), the seventh inner mold assembly block (307) and the eighth inner mold assembly block (308); sequentially removing the first outer mold assembly block (101), the second outer mold assembly block (102), the third outer mold assembly block (103), the fourth outer mold assembly block (104), the sixth outer mold assembly block (106), the fifth outer mold assembly block (105), the seventh outer mold assembly block (107), the eighth outer mold assembly block (108), the twelfth outer mold assembly block (112), the eleventh outer mold assembly block (111), the ninth outer mold assembly block (109) and the tenth outer mold assembly block (110); The base (5) is removed, and the manufacturing is completed.

10. A composite lining structure model of a multi-arch tunnel with permeable ribs, characterized in that, The method is used to manufacture the model of the composite lining structure of the through ribbed multi-arch tunnel according to any one of claims 7-9. The method is used to manufacture the model of the composite lining structure of the through ribbed multi-arch tunnel according to any one of claims 7-9.

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