Test mould for new joint shield tunnel segment model

Abstract

The utility model provides a kind of test mould for new joint shield tunnel segment model, it is related to test mould technical field, including mould body, mould body is made of steel, mould space is provided in mould body, mould space is suitable for pouring concrete, one side wall of mould body is provided with the cooperation part that is through in the direction of its thickness, the cooperation part is suitable for with the connecting piece of segment model cooperation, to connect piece is fixed in mould body, concrete solidification is cooperated to construct as shield tunnel segment model with connecting piece;Wood board is set to at least part inner circumferential wall of mould space.According to the utility model's test mould, through the mould body of steel, it can avoid the deformation of test mould when producing new joint shield tunnel segment model, realizes the extension test mould life, avoids secondary polishing to the shield tunnel segment model of production completion, improves the precision and production efficiency of shield tunnel segment model.

Description

Technical Field

[0001] This utility model relates to the field of test mold technology, and more specifically, to a test mold for a novel joint shield tunnel segment model. Background Technology

[0002] Bolts are a common connection method for shield tunnels, but they have drawbacks such as weakening the segment strength due to handholes, easy water leakage and bolt corrosion, and poor assembly efficiency and quality. To solve these problems, a new type of joint has been proposed. Shield tunnel segments using this new joint do not require handholes and can be assembled using the jacking force during construction, enabling automated construction of shield tunnels.

[0003] In the fabrication of shield tunnel segments, laboratories often employ a method of straightening curves, equating curved segments with straight slab segments, while ensuring that the reinforcement ratio of the straight slab segments is the same as that of the original segments. The test molds for shield tunnel segment models are mostly made of wood. Wooden molds are prone to deformation during the production process, resulting in a short lifespan and low precision. They require secondary grinding after production, significantly reducing the production efficiency of shield tunnel segment models. Utility Model Content

[0004] The purpose of this invention is to provide a test mold for a novel joint shield tunnel segment model, thereby improving the aforementioned problems. To achieve this objective, the technical solution adopted by this invention is as follows:

[0005] This application provides a test mold for a novel joint shield tunnel segment model, comprising: a mold body made of steel, wherein a mold space is provided within the mold body in the height direction of the mold body, the mold space being suitable for pouring concrete, and a mating part provided on one side wall of the mold body in the thickness direction, the mating part being suitable for engaging with a connector of the segment model to fix the connector to the mold body, wherein the concrete, after solidification, engages with the connector to construct a shield tunnel segment model; and a wooden board disposed on at least a portion of the inner peripheral wall of the mold space.

[0006] According to some embodiments of the present invention, the mating part includes a mating hole and a fixing hole. The mating hole is suitable for the connector to pass through, and the fixing pin passes through the fixing hole and mates with the opening of the connector to fix the connector to the mold body.

[0007] According to some embodiments of the present invention, the mold body includes a frame and a joint panel. The frame is constructed in the shape of an inverted triangle and is adapted to cooperate with the wooden board. The frame and the joint panel are connected to jointly construct the mold body. The joint panel is provided with the mating hole and the fixing hole.

[0008] According to some embodiments of the present invention, the frame includes a longitudinal frame and two transverse frames, the two transverse frames are spaced apart from each other, and one end of the two transverse frames on the same side is respectively connected to both ends of the longitudinal frame, and the joint panel is disposed on the other end of the two transverse frames on the same side; wherein the two transverse frames are respectively provided with a first connecting part on the side facing each other, and the two ends of the joint panel are respectively provided with a second connecting part, and the first connecting part and the second connecting part are detachably engaged.

[0009] According to some embodiments of the present invention, one of the first connecting part and the second connecting part is a pin, and the other of the first connecting part and the second connecting part is a pin hole. The pin is received in the pin hole to connect the joint panel to the two crossbars.

[0010] According to some embodiments of the present invention, the outer peripheral wall of the pin is provided with a first thread, and the inner peripheral wall of the pin hole is provided with a second thread suitable for engaging with the first thread.

[0011] According to some embodiments of the present invention, the seam panel includes a panel body, and outer plates are respectively connected to both ends of the panel body facing the two crossbars. The second connecting portion is provided on the outer plate.

[0012] According to some embodiments of the present invention, the joint panel is connected to reinforcing plates on both sides in the height direction, and the joint panel is also connected to multiple inner plates between the two outer plates.

[0013] According to some embodiments of the present invention, the panel body is bent and formed with a plurality of waterproof grooves, the plurality of waterproof grooves extending in the direction from one of the crossbeams to another, and the plurality of waterproof grooves are spaced apart in the height direction of the joint panel.

[0014] According to some embodiments of the present invention, the inner panel and / or the outer panel are provided with connecting ears corresponding to a plurality of waterproof grooves on the side facing the panel body. The connecting ears are received in the waterproof grooves and contact the inner wall of the waterproof grooves.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention, through the use of a steel mold body, can prevent deformation of the test mold when producing new joint shield tunnel segment models, thereby increasing the number of times the test mold can be used. It also avoids the need to modify the test mold after each production run and to avoid secondary grinding of the completed shield tunnel segment models, thus improving the production efficiency of shield tunnel segment models. At the same time, the above-mentioned design can also improve the accuracy and forming quality of the shield tunnel segment models.

[0017] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the test mold of this utility model;

[0020] Figure 2 for Figure 1 A magnified view of A in the center circle;

[0021] Figure 3 This is a front view of the experimental mold of this utility model;

[0022] Figure 4 This is a schematic diagram of the framework of this utility model.

[0023] Marked in the image:

[0024] 10. Mold body; 11. Mold space; 12. Frame; 121. Vertical frame; 122. Horizontal frame; 1221. Pin; 13. Panel body; 131. Mating hole; 132. Fixing hole; 133. Waterproof groove; 14. Outer panel; 141. Pin hole; 15. Reinforcing plate; 16. Inner panel; 17. Connecting ear; 20. Wooden board. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-4 As shown, this embodiment provides a test mold for a novel joint shield tunnel segment model, comprising: a mold body 10 and a wooden board 20. The mold body 10 is made of steel, and a mold space 11 is provided inside the mold body 10, extending through the height direction of the mold body 10. The mold space 11 is suitable for pouring concrete. A mating part is provided on one side wall of the mold body 10, extending through the thickness direction of the mold body. The mating part is suitable for mating with the connector of the segment model to fix the connector to the mold body 10. After the concrete solidifies, it is mated with the connector to construct a shield tunnel segment model. The wooden board 20 is provided on at least part of the inner peripheral wall of the mold space 11.

[0028] In some embodiments, the mold body 10 is made of steel to ensure the strength and durability of the test mold. A mold space 11 extends through the height of the mold body 10 and is used for pouring concrete. After the concrete solidifies, it forms the basic shape of the shield tunnel segment model. A mating part is provided on one side wall of the mold body 10, and the mating part extends through the thickness of the side wall. The function of the mating part is to mate with the connectors of the shield tunnel segment model, thereby fixing the connectors to the mold body 10. When the concrete solidifies within the mold space 11, it combines with the connectors to jointly form the shield tunnel segment model.

[0029] The wooden plank 20 is disposed on at least part of the inner peripheral wall of the mold space 11. The wooden plank 20, facing the mold space 11, helps to form some surface features of the shield tunnel segment model and provides additional support and stability. At the same time, the wooden plank 20 can play an auxiliary role during demolding, thereby improving demolding efficiency.

[0030] Understandably, when producing the shield tunnel segment model, the wooden board 20 is first fitted with at least part of the inner peripheral wall of the mold space 11, and then the connector is fitted with the fitting part to fix the connector to the mold body 10. Next, the production personnel can pour concrete into the mold space 11. After the concrete sets, the concrete and the connector are fixed together, thus forming the shield tunnel segment model.

[0031] It is worth mentioning that a wooden board 20 is also provided at the bottom of the mold space 11. The wooden board 20 can be separated from the solidified concrete in a better way, thereby improving the demolding efficiency.

[0032] According to the present invention, the test mold for a new type of joint shield tunnel segment model can avoid deformation of the test mold during the production of the new type of joint shield tunnel segment model by using a steel mold body 10, thereby increasing the number of times the test mold can be used. It can also avoid the need to modify the test mold after each production and avoid the need to grind the completed shield tunnel segment model, thus improving the production efficiency of the shield tunnel segment model. At the same time, the above settings can also improve the accuracy and forming quality of the shield tunnel segment model.

[0033] According to some embodiments of the present invention, the mating part includes a mating hole 131 and a fixing hole 132. The mating hole 131 is suitable for the connector to pass through, and the fixing pin passes through the fixing hole 132 and mates with the opening of the connector to fix the connector to the mold body 10.

[0034] In some embodiments, the connector includes a first body and a second body. The first body is disposed within the mold space 11 and adapted to fit against the inner wall of the mold body 10. The second body is connected to the first body and extends in the thickness direction of the first body, passing through a mating hole 131. The diameter of the mating hole 131 is larger than the diameter of the second body. The second body passes through the mating hole 131 to initially fix the connector to the mold body 10. The first body has an opening that faces the fixing hole 132. A fixing pin passes through the fixing hole 132 and engages with the opening, thereby further fixing the connector to the mold body 10. It is worth mentioning that the engagement of the fixing pin with the opening of the connector enhances the connection strength between the connector and the mold body 10, preventing the connector from loosening or falling off during concrete pouring.

[0035] Therefore, the above-mentioned setup can stably fix the connector to the mold body 10, thereby ensuring that the connector is accurately positioned after the concrete solidifies, thus ensuring the production quality and consistency of the shield tunnel segment model.

[0036] According to some embodiments of the present invention, the mold body 10 includes a frame 12 and a joint panel. The frame 12 is constructed in the shape of an inverted triangle and is adapted to cooperate with the wooden board 20. The frame 12 and the joint panel are connected to jointly construct the mold body 10. The joint panel is provided with a mating hole 131 and a fixing hole 132.

[0037] In some embodiments, the joint panel of this application is made of steel. Compared with traditional wooden panels, the joint panel of this application is not easily deformed, which ensures the production quality of the shield tunnel segment model. Moreover, the joint panel of this application can be used more times and does not need to be modified after production, thereby improving the production efficiency of the shield tunnel segment model. At the same time, the connection between the joint panel and the frame 12 can be more stable, avoiding the separation of the joint panel and the frame 12 during concrete pouring, thereby avoiding the need for secondary grinding of the shield tunnel segment model after production, further improving the production efficiency of the shield tunnel segment model.

[0038] It is worth mentioning that the steel frame 12 can limit the forming shape of the shield tunnel segment model and prevent the wooden plank 20 from deforming.

[0039] According to some embodiments of the present invention, the frame 12 includes a longitudinal frame 121 and two transverse frames 122. The two transverse frames 122 are spaced apart from each other, and one end of the two transverse frames 122 on the same side is connected to both ends of the longitudinal frame 121 respectively. A joint panel is provided at the other end of the two transverse frames 122 on the same side. The two transverse frames 122 are respectively provided with a first connecting part on one side facing each other, and the two ends of the joint panel are respectively provided with a second connecting part. The first connecting part and the second connecting part are detachably engaged.

[0040] In some embodiments, the frame 12 consists of a longitudinal frame 121 and two transverse frames 122. The two transverse frames 122 are spaced apart from each other, and one end of the two transverse frames 122 on the same side is connected to both ends of the longitudinal frame 121, forming a stable U-shaped structure. The joint panel is set at the other end of the two transverse frames 122 on the same side, that is, the joint panel is set on the opposite side of the longitudinal frame 121. In this way, the joint panel, together with the longitudinal frame 121 and the two transverse frames 122, constitutes the complete structure of the mold body 10.

[0041] It should be noted that the two horizontal frames 122 are welded to the two ends of the vertical frame 121 on the same side.

[0042] Understandably, when assembling the test mold, the frame 12 is first placed on the ground or workbench, and then the wooden board 20 is placed in the mold space 11, with the wooden board 20 fitting against the inner walls of the two horizontal frames 122 and the vertical frame 121 respectively. Next, the joint panel is placed on the side of the horizontal frame 122 away from the vertical frame 121, and the first mating part and the second mating part are mated to fix the joint panel to the two horizontal frames 122. After the joint panel is fixed, the side of the wooden board 20 that is fitted against the two horizontal frames 122 away from the vertical frame 121 abuts against the joint panel.

[0043] After the concrete has hardened, the first and second mating parts are first disconnected. Then, the joint panel is separated from the frame 12. Next, the joint panel and the wooden board 20 are removed from the shield tunnel segment model, thus completing the demolding process. The demolding process of the shield tunnel segment model is simple, which improves the demolding efficiency of the shield tunnel segment model and thus improves the production efficiency of the shield tunnel segment model.

[0044] It is worth mentioning that if a part of the mold body 10 (such as the seam panel) is damaged or needs to be replaced, the seam panel can be easily removed from the frame 12 for replacement or repair without replacing the entire mold body 10.

[0045] According to some embodiments of the present invention, one of the first connecting part and the second connecting part is a pin 1221, and the other of the first connecting part and the second connecting part is a pin hole 141. The pin 1221 is received in the pin hole 141 to connect the joint panel to the two crossbars 122.

[0046] In some embodiments, the first connecting part is constructed as a pin 1221. In this case, the two crossbars 122 are respectively provided with pins 1221 on one side facing each other, and the two ends of the joint panel are respectively provided with pin holes 141. The pins 1221 are received in the pin holes 141 to fix the joint panel and the two crossbars 122.

[0047] In some other embodiments, the first connecting part is constructed as a pin hole 141. In this case, the two crossbars 122 are respectively provided with pin holes 141 on the side facing each other, and the two ends of the joint panel are respectively provided with pins 1221. The pins 1221 are received in the pin holes 141 to fix the joint panel and the two crossbars 122.

[0048] According to some embodiments of the present invention, the outer peripheral wall of the pin 1221 is provided with a first thread, and the inner peripheral wall of the pin hole 141 is provided with a second thread suitable for engaging with the first thread.

[0049] In some embodiments, the first thread of the pin 1221 engages with the second thread of the pin hole 141, enhancing the connection stability between the joint panel and the crossbeam 122. Specifically, when the pin 1221 is screwed into the pin hole 141, the engagement between the first and second threads strengthens the connection force between the pin 1221 and the pin hole 141, preventing the pin 1221 from loosening or falling off during concrete pouring or other processes. This ensures precise alignment and fixation between the joint panel and the crossbeam 122, thereby improving the overall accuracy and stability of the test mold.

[0050] According to some embodiments of the present invention, the joint panel includes a panel body 13, and outer plates 14 are respectively connected to both ends of the panel body 13 facing the two crossbars 122. A second connecting part is provided on the outer plate 14.

[0051] In some embodiments, the joint panel includes a panel body 13 and an outer panel 14. The panel body 13 is the main part of the joint panel, that is, the panel body 13 is used to contact the concrete and form part of the segment model. The outer panels 14 are respectively connected to the two ends of the panel body 13 facing the two crossbeams 122. The two outer panels 14 serve as connecting bridges between the joint panel and the two crossbeams 122.

[0052] Understandably, the stable connection between the joint panel and the cross frame 122 is achieved through the cooperation between the second connecting part on the outer plate 14 and the first connecting part on the cross frame 122. The presence of the outer plate 14 not only increases the contact area between the joint panel and the cross frame 122, improving the stability of the connection, but also allows the joint panel to be positioned more accurately in the test mold, thereby ensuring the manufacturing accuracy of the shield tunnel segment model.

[0053] According to some embodiments of the present invention, the joint panel is connected to reinforcing plates 15 on both sides in the height direction, and the joint panel is also connected to multiple inner plates 16 between the two outer plates 14.

[0054] In some embodiments, the joint panel is connected to two reinforcing plates 15 on both sides in the height direction. The two reinforcing plates 15 extend away from the mold space 11 in the thickness direction of the joint panel. Thus, the two reinforcing plates 15 can improve the structural strength of the joint panel in the thickness direction, thereby preventing the joint panel from deforming during concrete pouring and extending the service life of the joint panel.

[0055] Of course, multiple inner panels 16 are spaced apart between two outer panels 14. The multiple inner panels 16 are connected to the panel body 13 and the two reinforcing plates 15 respectively. The arrangement of multiple inner panels 16 can further improve the structural strength of the joint panel in the thickness direction. At the same time, since the joint panel is connected to the two reinforcing plates 15 on both sides in the height direction, the arrangement of multiple inner panels 16 can increase the connection points and support structure inside the joint panel, further improving the overall strength and rigidity of the joint panel, reducing the deformation risk of the joint panel during the concrete pouring process, and ensuring the stability and accuracy of the test mold during the concrete pouring process.

[0056] According to some embodiments of the present invention, the panel body 13 is bent and formed with a plurality of waterproof grooves 133, the plurality of waterproof grooves 133 extending in the direction from one of the crossbars 122 to the other crossbar 122, and the plurality of waterproof grooves 133 are spaced apart in the height direction of the joint panel.

[0057] In some embodiments, the number of waterproof grooves 133 is determined by the shield tunnel segment model to be produced, that is, the shield tunnel segment model to be produced requires several waterproof structures, and the panel body 13 of this application is bent out with a corresponding number of waterproof grooves 133.

[0058] It should be noted that after determining the number and location of the waterproof grooves 133, a steel plate is directly bent by a bending machine or other equipment to form the panel body 13. The manufacturing of the panel body 13 is simple and quick, which improves the production efficiency of the test mold.

[0059] It is understandable that the waterproof groove 133 can form a waterproof structure corresponding to the waterproof groove 133 on the side of the shield tunnel segment model facing the joint panel after the concrete is formed, thereby improving the waterproof capability of the shield tunnel segment model and extending its service life.

[0060] According to some embodiments of the present invention, the inner panel 16 and / or the outer panel 14 are provided with connecting ears 17 corresponding to a plurality of waterproof grooves 133 on the side facing the panel body 13. The connecting ears 17 are housed in the waterproof grooves 133 and contact the inner wall of the waterproof grooves 133.

[0061] In some embodiments, the inner panel 16 may have a connecting ear 17 on the side facing the panel body 13; the outer panel 14 may have a connecting ear 17 on the side facing the panel body 13; or both the inner panel 16 and the outer panel 14 may have a connecting ear 17 on the side facing the panel body 13, and there is no limitation here.

[0062] It is understandable that the waterproof groove 133 is formed by bending the panel body 13, and the connecting ear 17 extends into the waterproof groove 133 and contacts the inner wall of the waterproof groove 133. This can improve the structural strength of the waterproof groove 133 formed by bending, prevent the waterproof groove 133 from deforming during the concrete pouring process, and thus ensure the forming quality of the waterproof structure on the shield tunnel segment model, thereby improving the production quality and consistency of the shield tunnel segment model.

[0063] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0064] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A test mold for a novel joint shield tunnel segment model, characterized in that, include: The mold body (10) is made of steel. The mold body (10) has a mold space (11) that runs through the height of the mold body (10). The mold space (11) is suitable for pouring concrete. One side wall of the mold body (10) has a mating part that runs through its own thickness. The mating part is suitable for mating with the connecting parts of the tunnel segment model to fix the connecting parts to the mold body (10). After the concrete solidifies, it is mated with the connecting parts to form a shield tunnel segment model. A wooden board (20) is disposed on at least a portion of the inner peripheral wall of the mold space (11).

2. The test mold for a novel joint shield tunnel segment model according to claim 1, characterized in that, The mating part includes a mating hole (131) and a fixing hole (132). The mating hole (131) is adapted for the connector to pass through, and the fixing pin passes through the fixing hole (132) and engages with the opening of the connector to fix the connector to the mold body (10).

3. The test mold for a novel joint shield tunnel segment model according to claim 2, characterized in that, The mold body (10) includes a frame (12) and a joint panel. The frame (12) is constructed in the shape of an inverted triangle and is adapted to cooperate with the wooden board (20). The frame (12) and the joint panel are connected to form the mold body (10). The joint panel is provided with the mating hole (131) and the fixing hole (132).

4. The test mold for a novel joint shield tunnel segment model according to claim 3, characterized in that, The frame (12) includes a longitudinal frame (121) and two transverse frames (122). The two transverse frames (122) are spaced apart from each other, and one end of the two transverse frames (122) on the same side is connected to both ends of the longitudinal frame (121). The seam panel is provided at the other end of the two transverse frames (122) on the same side. The two transverse frames (122) are respectively provided with a first connecting part on the side facing each other, and the two ends of the seam panel are respectively provided with a second connecting part. The first connecting part and the second connecting part are detachably engaged.

5. The test mold for a novel joint shield tunnel segment model according to claim 4, characterized in that, One of the first connecting portion and the second connecting portion is a pin (1221), and the other of the first connecting portion and the second connecting portion is a pin hole (141). The pin (1221) is received in the pin hole (141) to connect the joint panel to the two crossbars (122).

6. The test mold for a novel joint shield tunnel segment model according to claim 5, characterized in that, The outer peripheral wall of the pin (1221) is provided with a first thread, and the inner peripheral wall of the pin hole (141) is provided with a second thread suitable for engaging with the first thread.

7. The test mold for a novel joint shield tunnel segment model according to claim 4, characterized in that, The joint panel includes a panel body (13), and the panel body (13) is connected to an outer plate (14) at both ends facing the two crossbars (122), and the outer plate (14) is provided with the second connecting part.

8. The test mold for a novel joint shield tunnel segment model according to claim 7, characterized in that, The joint panel is connected to reinforcing plates (15) on both sides in the height direction, and the joint panel is also connected to multiple inner plates (16) between the two outer plates (14).

9. The test mold for a novel joint shield tunnel segment model according to claim 8, characterized in that, The panel body (13) is bent and formed with a plurality of waterproof grooves (133), which extend in the direction from one of the crossbars (122) to the other crossbar (122), and the plurality of waterproof grooves (133) are spaced apart in the height direction of the joint panel.

10. The test mold for a novel joint shield tunnel segment model according to claim 9, characterized in that, The inner panel (16) and / or the outer panel (14) are provided with connecting ears (17) corresponding to a plurality of waterproof grooves (133) on the side facing the panel body (13). The connecting ears (17) are housed in the waterproof grooves (133) and contact the inner wall of the waterproof grooves (133).

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