Splicing type formwork for tunnel blind ditch construction

Abstract

The utility model provides a splicing type template for tunnel blind ditch construction. The splicing type formwork for tunnel blind ditch construction comprises a base, a first formwork body is installed on the top of the base, and a sealing groove is formed in the bottom of the first formwork body. The fixing grooves are formed in the top of the first formwork and the top and the bottom of the second formwork, after the second formwork is installed on the top of the first formwork, every two fixing grooves formed in the first formwork and the second formwork are combined into an I-shaped structure, the fixing rods are installed in the I-shaped structures in an inserted mode, and the fixing rods are arranged to be of a structure matched with the I-shaped structures. The first formwork and the second formwork can be vertically locked together through the first fixing plate and the second fixing plate, then the first formwork and the second formwork can be fixedly assembled together through the second fixing plate, concrete can be poured into the first formwork and the second formwork, and therefore the tunnel blind ditch is produced; the overall size of the device can be adjusted, and tunnel blind ditches with different lengths can be produced.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel technology, and in particular relates to a splicing template for tunnel culvert construction. Background Technology

[0002] Tunnels are underground passages that pass through mountains, water bodies, or geological obstacles. They are widely used in transportation, water conservancy, and municipal engineering. Their core functions include shortening travel distances, improving transportation efficiency, ensuring driving safety, and overcoming the limitations of complex terrain. According to their purpose, they can be divided into traffic tunnels, hydraulic tunnels, and municipal tunnels. According to their cross-sectional shape, they can be divided into circular, horseshoe-shaped, and rectangular tunnels. The tunnel structure consists of a main body and auxiliary facilities. The main body includes the tunnel body and portals, while the auxiliary facilities include ventilation, lighting, drainage, and monitoring systems. Construction technology is constantly being innovated according to engineering needs. For example, the shield tunneling method is suitable for soft soil layers, while the mining method is used for hard rock strata. Tunnels need to be installed in tunnels. The tunnel drainage system is a core component of the tunnel's waterproofing and drainage system. It is mainly used to intercept, collect, and drain seepage water or groundwater from the surrounding rock to prevent water accumulation from threatening the stability of the tunnel structure and driving safety.

[0003] Currently, tunnel culverts are typically constructed using formwork and concrete pouring. However, the existing formwork for tunnel culverts usually lacks a splicing structure, making it impossible to join multiple sections of formwork together to pour a long tunnel culvert. Furthermore, the stability of the currently used pouring formwork is not high, and concrete slurry is prone to overflowing from the formwork. Therefore, it is necessary to provide splicing formwork for tunnel culvert construction to solve the above problems. Utility Model Content

[0004] The technical content of this utility model is to provide a splicing template for tunnel culvert construction.

[0005] To address the aforementioned problems, this utility model provides a splicing template for tunnel culvert construction, comprising a base, a first template mounted on the top of the base, a sealing groove at the bottom of the first template for mounting a sealing template, the sealing template being fixedly mounted on the top of the base, four sets of first fixing plates symmetrically mounted on the bottom of the first template, a second template mounted on the top of the first template via four sets of fixing rods, second fixing plates mounted on both the top of the first template and the bottom of the second template, four sets of fixing grooves on both the top and bottom of the second template, pull rings mounted on the sides of the fixing rods, positioning tubes mounted at the four corners of the base, positioning rods mounted inside the positioning tubes, an L-plate mounted on the back of the first template, and a support plate mounted on the L-plate.

[0006] As a further solution of this utility model, both the first template and the second template are configured as U-shaped structures, and the interiors of the first template and the second template are configured as hollow structures. The sealing template is configured as a U-shaped structure, and the height of the sealing template is the same as the depth of the sealing groove. The sealing template and the sealing groove are adapted to each other. The sealing groove is opened at the bottom edge of the first template, and the thickness of the sealing groove is one-third of the thickness of the first template. The bottom of the first template is configured as an open structure. By inserting the sealing template into the sealing groove, the first template can be installed on the top of the base.

[0007] As a further solution of this utility model, two sets of first fixing plates are symmetrically installed on both sides of the bottom of the first template. The four sets of first fixing plates are fixedly connected to the top of the base by two sets of symmetrical fixing bolts, thereby fixing the first template on the top of the base.

[0008] As a further solution of this utility model, the bottom of the L-plate is fixedly connected to the top of the base by a fixing bolt, and the side of the L-plate is fixedly connected to the bottom of the back of the first template by a fixing bolt. The depth of the fixing hole on the back of the first template that matches the fixing bolt is less than the thickness of the first template. Multiple sets of support plates are installed on the L-plate, and the support plates are perpendicular to the L-plate, thereby increasing the strength of the L-plate itself.

[0009] As a further solution of this utility model, mounting holes are provided at the four corners of the base, and the positioning tube is fixedly installed in them. The top of the positioning tube is higher than the top of the base, and the bottom of the positioning tube is flush with the bottom of the base. The outer side of the positioning rod and the inner side of the positioning tube are provided with matching threaded groove structures. The top of the positioning rod is set with a T-shaped structure to facilitate the rotation of the positioning rod.

[0010] As a further solution of this utility model, four sets of fixing grooves are symmetrically opened on the top of the first template. The fixing grooves opened on the first template and the second template are of the same specification. The fixing grooves penetrate the left side of the first template and the second template but do not penetrate the right side of the first template and the second template. The fixing grooves are opened at the top and bottom edges of the first template and the second template. The inner width of the fixing grooves is less than the thickness of the first template and the second template. The fixing grooves are set as T-shaped structures. The four sets of fixing grooves at the bottom of the second template and the four sets of fixing grooves at the top of the first template are combined in pairs, forming an I-shaped structure. The fixing rod is set as a structure adapted to it. Two sets of pull rings are symmetrically installed on the left side of the fixing rod so as to pull the fixing rod out of the fixing groove.

[0011] As a further solution of this utility model, four sets of second fixing plates are symmetrically installed on the top two sides of the first template, and four sets of second fixing plates are symmetrically installed on the bottom two sides of the second template. The eight sets of second fixing plates on the first template and the second template are combined in pairs, and adjacent sets of second fixing plates are fixedly connected by two sets of fixing bolts, thereby fixing the second template on the top of the first template.

[0012] Compared with related technologies, the splicing formwork for tunnel culvert construction provided by this utility model has the following beneficial effects:

[0013] 1. This utility model involves creating fixing grooves at the top of the first template and at the top and bottom of the second template. After the second template is installed on top of the first template, the fixing grooves on the first and second templates are combined in pairs to form an I-shaped structure. Fixing rods are inserted and installed in this structure, which is designed to be compatible with the first template and the second template. This allows the first template and the second template to be vertically locked together. Then, the first template and the second template can be fixedly assembled together by the second fixing plate. Concrete can then be poured into the interior of the first template and the second template to produce a tunnel culvert. By splicing multiple sets of second templates on the top of the first template, the overall size of this device can be adjusted to produce tunnel culverts of different lengths.

[0014] 2. This utility model installs a sealing template on the top of the base. The bottom of the first template has a matching sealing groove. The sealing groove is located at the bottom edge of the first template, and its thickness is one-third of the thickness of the first template. The bottom of the first template is set as an open structure. By inserting the sealing template into the sealing groove, the first template can be installed on the top of the base. The sealing template is similar to a foundation structure. Under the action of the sealing template, the lateral stability of the first template can be guaranteed, preventing the first template and its top structure from overturning due to the weight of the concrete poured inside.

[0015] 3. This utility model installs positioning tubes at the four corners of the base, with positioning rods installed inside the positioning tubes. The outer side of the positioning rods and the inner side of the positioning tubes are provided with matching threaded groove structures. The top of the positioning rods is set with a T-shaped structure so that the positioning rods can be rotated, thereby causing the positioning rods to move downward along the positioning tubes. By inserting the four sets of positioning rods into the positioning holes set in the ground, the base can be fixedly installed on the ground, thereby achieving the overall fixed installation of the device on the ground, giving the device good stability during use. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1This is a top-view three-dimensional structural diagram of the splicing formwork for tunnel culvert construction according to this utility model;

[0018] Figure 2 This is a side-view three-dimensional structural diagram of the splicing formwork for tunnel culvert construction according to this utility model;

[0019] Figure 3 This is a top-view three-dimensional structural diagram of the splicing formwork for tunnel culvert construction according to this utility model;

[0020] Figure 4 This is an exploded three-dimensional structural diagram of the splicing template for tunnel culvert construction according to this utility model.

[0021] Figure 5 This is a bottom-view three-dimensional structural diagram of the splicing template for tunnel culvert construction according to this utility model;

[0022] Figure 6 This is a schematic diagram of the first and second templates of the splicing template for tunnel culvert construction according to this utility model.

[0023] Figure 7 This is a schematic diagram of the top structure of the second formwork of the spliced ​​formwork for tunnel culvert construction according to this utility model;

[0024] Figure 8 This is an enlarged structural diagram of point A of the splicing template for tunnel culvert construction according to this utility model;

[0025] Figure 9 This is an enlarged view of section B of the splicing template for tunnel culvert construction according to this utility model.

[0026] In the diagram: 1. Base; 2. First template; 3. Sealing groove; 4. Sealing template; 5. First fixing plate; 6. Fixing rod; 7. Second template; 8. Second fixing plate; 9. Fixing groove; 10. Pull ring; 11. Positioning tube; 12. Positioning rod; 13. L-plate; 14. Support plate. Detailed Implementation

[0027] Please refer to the following: Figure 1-9The interlocking formwork for tunnel culvert construction includes a base 1, a first formwork 2 installed on the top of the base 1, a sealing groove 3 at the bottom of the first formwork 2 containing a sealing formwork 4, the sealing formwork 4 being fixedly installed on the top of the base 1, four sets of first fixing plates 5 symmetrically installed at the bottom of the first formwork 2, a second formwork 7 installed on the top of the first formwork 2 via four sets of fixing rods 6, second fixing plates 8 installed on the top of the first formwork 2 and the bottom of the second formwork 7, four sets of fixing grooves 9 on the top and bottom of the second formwork 7, pull rings 10 installed on the sides of the fixing rods 6, positioning tubes 11 installed at the four corners of the base 1, positioning rods 12 installed inside the positioning tubes 11, an L-plate 13 installed on the back of the first formwork 2, and a support plate 14 installed on the L-plate 13.

[0028] Preferably, both the first template 2 and the second template 7 are U-shaped structures with hollow interiors to facilitate the casting of U-shaped tunnel trenches. The sealing template 4 is U-shaped with the same height as the depth of the sealing groove 3. The sealing template 4 and the sealing groove 3 are compatible. The sealing groove 3 is located at the bottom edge of the first template 2, and its thickness is one-third of the thickness of the first template 2. The bottom of the first template 2 is an open structure. By inserting the sealing template 4 into the sealing groove 3, the first template 2 can be installed on the top of the base 1. The sealing template 4 is similar to a foundation structure. Under the action of the sealing template 4, the lateral stability of the first template 2 can be guaranteed, preventing the first template 2 and its top structure from overturning due to the weight of the concrete poured inside.

[0029] Preferably, two sets of first fixing plates 5 are symmetrically installed on the bottom of both sides of the first template 2, and the four sets of first fixing plates 5 are fixedly connected to the top of the base 1 by two sets of symmetrical fixing bolts, thereby fixing the first template 2 on the top of the base 1.

[0030] Preferably, the bottom of L-plate 13 is fixedly connected to the top of base 1 by fixing bolts, and the side of L-plate 13 is fixedly connected to the bottom of the back of first template 2 by fixing bolts. The depth of the fixing hole on the back of first template 2 that matches the fixing bolt is less than the thickness of first template 2 to prevent concrete from overflowing from the fixing hole. Multiple sets of support plates 14 are installed on L-plate 13. The support plates 14 are perpendicular to L-plate 13, which can increase the strength of L-plate 13 itself. L-plate 13 can further increase the firmness of the connection between first template 2 and base 1.

[0031] Preferably, mounting holes are provided at all four corners of the base 1, and positioning tubes 11 are fixedly installed in them. The top of the positioning tube 11 is higher than the top of the base 1, and the bottom of the positioning tube 11 is flush with the bottom of the base 1. The outer side of the positioning rod 12 and the inner side of the positioning tube 11 are provided with matching threaded groove structures. The top of the positioning rod 12 is set with a T-shaped structure so that the positioning rod 12 can be rotated, thereby causing the positioning rod 12 to move downward along the positioning tube 11. By inserting the four sets of positioning rods 12 into the positioning holes provided in the ground, the base 1 can be fixedly installed on the ground, thereby achieving the overall fixed installation of the device on the ground, so that the device has good stability during use.

[0032] Preferably, four sets of fixing slots 9 are symmetrically provided on the top of the first template 2. The fixing slots 9 on the first template 2 and the second template 7 are of the same specification. The fixing slots 9 penetrate the left side of the first template 2 and the second template 7 but not the right side. The fixing slots 9 are located at the top and bottom edges of the first template 2 and the second template 7. The inner width of the fixing slots 9 is less than the thickness of the first template 2 and the second template 7. The fixing slots 9 are set as T-shaped structures. After the second template 7 is horizontally installed on the top of the first template 2, the four sets of fixing slots 9 at the bottom of the second template 7 and the four sets of fixing slots 9 at the top of the first template 2 are combined in pairs, forming an I-shaped structure. The fixing rod 6 is set as follows: To accommodate this structure, the second template 7 can be installed on top of the first template 2 by inserting four sets of fixing rods 6 into the four sets of two-by-two fixing slots 9 after assembly. Under the action of the four sets of fixing rods 6, there will be no vertical separation between the second template 7 and the first template 2. Two sets of pull rings 10 are symmetrically installed on the left side of the fixing rods 6 so as to pull the fixing rods 6 out of the fixing slots 9. By setting the fixing slots 9 and fixing rods 6, this device allows the second template 7 to be installed on top of the first template 2 by a horizontal sliding installation method, without having to hoist the second template 7 to a high position and then lower it to the top of the first template 2 for installation. This is suitable for use in narrow spaces inside tunnels.

[0033] Preferably, four sets of second fixing plates 8 are symmetrically installed on the top two sides of the first template 2, and four sets of second fixing plates 8 are symmetrically installed on the bottom two sides of the second template 7. After the second template 7 is installed on the top of the first template 2 by the fixing rod 6, the eight sets of second fixing plates 8 on the first template 2 and the second template 7 are arranged in pairs, one above the other. Adjacent sets of second fixing plates 8 are fixedly connected by two sets of fixing bolts, thereby fixing the second template 7 on the top of the first template 2. Through the cooperation of the second fixing plates 8 and the fixing rod 6, it can be ensured that the second template 7 will not separate laterally after being installed on the top of the first template 2, ensuring the structural stability of the device after assembly. Then, the second template can be... Concrete is poured inside the first template 2 and the first template 7 to create a concrete tunnel ditch. After the concrete has solidified, the four sets of fixing rods 6 are pulled out from between the first template 2 and the second template 7. Then, the fixing bolts on the two sets of second fixing plates 8 that are fixed together on the first template 2 and the second template 7 are removed. The second template 7 can then be vertically removed from the top of the first template 2, thus achieving demolding of the second template 7. Subsequently, the concrete tunnel ditch can be taken out from inside the first template 2. This device is a splicing template structure, and the height can be increased by splicing multiple sets of second templates 7, thereby producing concrete tunnel ditches of different lengths to meet practical needs.

[0034] The standard parts used in this embodiment can be purchased directly from the market, and can also be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A spliced form for tunneling and guttering construction, comprising a base (1), a first form (2) is installed on the top of the base (1), characterized in that: The bottom of the first template (2) is provided with a sealing groove (3), in which a sealing template (4) is installed. The sealing template (4) is fixedly installed on the top of the base (1). Four sets of first fixing plates (5) are symmetrically installed on the bottom of the first template (2). The top of the first template (2) is provided with a second template (7) through four sets of fixing rods (6). The top of the first template (2) and the bottom of the second template (7) are both provided with second fixing plates (8). The top and bottom of the second template (7) are provided with four sets of fixing grooves (9). Pull rings (10) are installed on the side of the fixing rods (6). Positioning tubes (11) are installed at the four corners of the base (1). Positioning rods (12) are installed inside the positioning tubes (11). An L plate (13) is installed on the back of the first template (2). A support plate (14) is installed on the L plate (13).

2. The spliced template for tunneling underdrain construction according to claim 1, characterized by: The first template (2) and the second template (7) are both set as U-shaped structures. The interior of the first template (2) and the second template (7) is set as a hollow structure. The sealing template (4) is set as a U-shaped structure. The height of the sealing template (4) is the same as the depth of the sealing groove (3). The sealing template (4) and the sealing groove (3) are adapted to each other. The sealing groove (3) is opened at the bottom edge of the first template (2). The thickness of the sealing groove (3) is one-third of the thickness of the first template (2). The bottom of the first template (2) is set as an open structure.

3. The spliced template for tunneling underdrain construction according to claim 1, characterized in that: Two sets of first fixing plates (5) are symmetrically installed on both sides of the bottom of the first template (2). All four sets of first fixing plates (5) are fixedly connected to the top of the base (1) by two sets of symmetrical fixing bolts.

4. The spliced formwork for tunneling according to claim 1, characterized in that: The bottom of the L plate (13) is fixedly connected to the top of the base (1) by a fixing bolt. The side of the L plate (13) is fixedly connected to the bottom of the back of the first template (2) by a fixing bolt. The depth of the fixing hole on the back of the first template (2) that is adapted to the fixing bolt is less than the thickness of the first template (2). Multiple sets of support plates (14) are installed on the L plate (13). The support plates (14) are perpendicular to the L plate (13).

5. The splicing formwork for tunnel culvert construction according to claim 1, characterized in that: The base (1) has mounting holes at all four corners, and the positioning tube (11) is fixedly installed in them. The top of the positioning tube (11) is higher than the top of the base (1), and the bottom of the positioning tube (11) is flush with the bottom of the base (1). The outer side of the positioning rod (12) and the inner side of the positioning tube (11) are provided with matching threaded groove structures, and the top of the positioning rod (12) is set as a T-shaped structure.

6. The spliced formwork for tunneling according to claim 1, characterized in that: The top of the first template (2) is symmetrically provided with four sets of fixing grooves (9). The fixing grooves (9) on the first template (2) and the second template (7) are of the same specification. The fixing grooves (9) penetrate the left side of the first template (2) and the second template (7) but do not penetrate the right side of the first template (2) and the second template (7). The fixing grooves (9) are opened at the top and bottom edges of the first template (2) and the second template (7). The inner width of the fixing grooves (9) is less than the thickness of the first template (2) and the second template (7). The fixing grooves (9) are set as T-shaped structures. The four sets of fixing grooves (9) at the bottom of the second template (7) and the four sets of fixing grooves (9) at the top of the first template (2) are combined in pairs, and the two sets of upper and lower combined fixing grooves (9) are combined to form an I-shaped structure. The fixing rod (6) is set as a structure that is adapted to it. Two sets of pull rings (10) are symmetrically installed on the left side of the fixing rod (6).

7. The spliced formwork for tunneling according to claim 1, characterized in that: Four sets of second fixing plates (8) are symmetrically installed on the top two sides of the first template (2), and four sets of second fixing plates (8) are symmetrically installed on the bottom two sides of the second template (7). The eight sets of second fixing plates (8) on the first template (2) and the second template (7) are arranged in pairs, one above the other, and the two adjacent sets of second fixing plates (8) are fixedly connected by two sets of fixing bolts.

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