Platform structure and construction method for intelligent vertical shield tunneling system

Abstract

This invention discloses a platform structure and construction method for an intelligent vertical shield tunneling system. The platform has a ring-shaped plate structure, comprising multiple splicing blocks with fan-shaped upper and lower surfaces. Each splicing block is a precast structure made of reinforced concrete. Adjacent splicing blocks are connected by a socket-type structure. The splicing blocks include standard blocks, embedded part blocks, weight-reducing blocks, enlarged blocks, closed adjacent blocks, and a sealing block. During construction, adjacent blocks are first positioned and sealed. Then, all remaining splicing blocks except the sealing blocks are positioned counter-clockwise. Finally, the sealing block is positioned, and fixing steel plates are installed on top of the sealing block and the two adjacent closed adjacent blocks for fixation. This invention reduces on-site workload, improves efficiency, shortens the construction period, ensures construction accuracy, meets the high-precision and stable requirements of the intelligent tunneling system, and reduces waste and pollution.

Description

Technical Field

[0001] This invention relates to the field of vertical shield tunneling technology, and in particular to a platform structure and construction method for an intelligent vertical shield lowering system. Background Technology

[0002] In recent years, with the further development of cities and the increasing intelligence of construction technology, a type of vertical shield tunneling machine for underground structure construction has emerged. To ensure stability during the construction of the vertical shield tunneling machine, an intelligent lowering system is needed to control the advancement of the vertical shield tunneling machine.

[0003] The intelligent lowering system is located on the ground, requiring the construction of a platform to bear the entire load of the equipment and ensure the stability of the intelligent lowering system. At the same time, it provides a platform for the integrated and fixed connection of construction equipment pipelines, and also provides an operating platform for construction personnel, thus becoming a construction platform that integrates multiple functions.

[0004] Most existing construction platforms are made of cast-in-place reinforced concrete.

[0005] However, the existing technology used in this form not only involves a large amount of on-site work, low efficiency, and long construction period, but also makes it difficult to guarantee construction accuracy, thus failing to meet the high precision and stability requirements of the intelligent deployment system.

[0006] Moreover, after construction was completed, this portion of concrete was disposed of as waste concrete, resulting in waste and pollution.

[0007] Therefore, how to reduce on-site workload, improve efficiency, shorten construction period, ensure construction accuracy, meet the high precision and stability requirements of intelligent deployment system, and reduce waste and pollution has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0008] In view of the above-mentioned deficiencies of the prior art, the present invention provides a platform structure and construction method for a vertical shield intelligent lowering system. The purpose is to reduce on-site workload, improve efficiency, shorten construction period, ensure construction accuracy, meet the high precision and stability requirements of the intelligent lowering system, and reduce waste and pollution.

[0009] To achieve the above objectives, the present invention discloses a platform structure for a vertical shield tunneling intelligent lowering system, which is a ring-shaped plate structure comprising multiple splicing blocks with fan-shaped upper and lower surfaces.

[0010] Each of the aforementioned splicing blocks is a prefabricated structure made of reinforced concrete;

[0011] Each pair of adjacent splicing blocks is connected by a socket structure;

[0012] The multiple splicing blocks include standard blocks, embedded part blocks, weight-reducing blocks, enlarged blocks, closed adjacent blocks, and closed blocks;

[0013] Each of the aforementioned standard blocks is a solid structure;

[0014] The radial dimension of each enlarged block is larger than the radial dimension of the other splicing blocks;

[0015] Each of the aforementioned embedded parts and each of the aforementioned enlarged parts has the same embedded anchor plate on both the upper and lower surfaces, and an embedded screw is inserted from bottom to top at the position of the embedded anchor plate;

[0016] Each of the pre-embedded screws has one end extending from the top of the corresponding pre-embedded component block, which is fastened to the vertical shield intelligent lowering system by setting a nut;

[0017] Each of the aforementioned weight-reduction blocks contains two or more hollow weight-reduction elements.

[0018] Both sides of the closed block are the closed adjacent blocks, and the insertion direction of the socket structure between each of the closed adjacent blocks is parallel to the axial direction of the fan ring shape;

[0019] The insertion direction of the socket structure on the side of each closed adjacent block that is spliced ​​with the closed block is parallel to the axial direction of the fan ring shape, and the insertion direction of the socket structure on the other side that is spliced ​​with the other splicing blocks is the radial direction of the corresponding fan ring shape.

[0020] The insertion direction of the socket structure of all the splicing blocks except the closed adjacent block and the closed block is the radial direction of the corresponding fan ring shape;

[0021] The top of the enclosed block and the tops of the two adjacent enclosed blocks are fixed by a fixing steel plate.

[0022] Preferably, each of the socket-type structures includes a groove and a tenon that matches the groove;

[0023] Each groove and the corresponding tenon are respectively provided on the two splicing surfaces where two adjacent splicing blocks are spliced ​​together.

[0024] More preferably, each of the grooves is a dovetail groove.

[0025] Preferably, the top of each of the pre-embedded parts and the top of each of the enlarged parts are located below the corresponding pre-embedded anchor plate, and countersunk holes are provided at the positions corresponding to each of the pre-embedded screws;

[0026] Each of the countersunk holes is used to install a double-ended nut, which is used to lock the corresponding pre-embedded screw.

[0027] Preferably, each of the hollow weight-reducing bodies is a hollow structure made of PVC material;

[0028] Each of the hollow weight-reducing bodies is a cylinder or a prism.

[0029] Preferably, a screw fixing plate is provided under the closed block and the two adjacent closed adjacent blocks, and a steel plate fixing screw is inserted from bottom to top at the position of the screw fixing plate, and the steel plate fixing nut is set on the steel plate fixing screw to fix it to the fixing steel plate;

[0030] The top of the enclosing block and the two adjacent enclosing blocks are located below the fixing steel plate, and countersunk holes are provided at the positions of each fixing screw of the steel plate.

[0031] Each of the countersunk holes is used to install a double-ended nut, which is used to lock the corresponding steel plate fixing screw.

[0032] This invention also provides a construction method for a platform structure of a vertical shield tunneling intelligent lowering system, comprising the following steps:

[0033] Step 1: All splicing blocks are prefabricated in the factory and transported to the assembly site;

[0034] Step 2: Excavate the platform foundation pit; the depth of the foundation pit matches the depth of the platform, and after the platform is placed in the foundation pit, make the top of the platform flush with the ground;

[0035] Step 3: Position the two closed adjacent blocks in sequence;

[0036] Step 4: Between the two closed adjacent blocks, place all the remaining splicing blocks, except for the closed blocks, in a counterclockwise direction;

[0037] Step 5: Hoist the closed block above the two adjacent closed blocks and insert it between the two adjacent closed blocks along the axial direction of the platform of the annular plate structure;

[0038] Step 6: After assembling all the splicing blocks, fix the sealing block and the two adjacent sealing blocks with steel plates on top.

[0039] Preferably, in step 4, the splicing method for sequentially positioning all the remaining splicing blocks (excluding the closed blocks) counterclockwise between the two closed adjacent blocks is as follows: each splicing block is hoisted to the outside of the already positioned splicing block, the corresponding socket structure is aligned, inserted radially along the platform of the annular plate structure, and then fixed after adjusting its position.

[0040] Preferably, when disassembling the platform, the fixing steel plate is removed first, and then the sealing block is lifted away along the axial direction of the platform with the annular plate structure. All the splicing blocks are then removed in a clockwise or counterclockwise direction along the radial direction of the platform with the annular plate structure.

[0041] The beneficial effects of this invention are:

[0042] This invention can reduce on-site workload, improve efficiency, shorten construction period, ensure construction accuracy, meet the high precision and stability requirements of intelligent deployment system, and reduce waste and pollution.

[0043] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description

[0044] Figure 1 A schematic diagram of an embodiment of the present invention is shown.

[0045] Figure 2 The diagram shows a top-view structural diagram of a standard block structure in one embodiment of the present invention.

[0046] Figure 3 This diagram illustrates the structure of the inner side of the annular plate-like structure corresponding to the standard blocks in one embodiment of the present invention.

[0047] Figure 4 This invention is shown Figure 2 A schematic diagram of the local structure in direction A.

[0048] Figure 5 This invention is shown Figure 2 Schematic diagram of the local structure in the B direction.

[0049] Figure 6 The diagram shows a top view of the pre-embedded component structure in one embodiment of the present invention.

[0050] Figure 7 This diagram illustrates the structure of the inner side of the pre-embedded component corresponding to the annular plate-shaped structure in one embodiment of the present invention.

[0051] Figure 8 The diagram shows a top view of the weight reduction block structure in one embodiment of the present invention.

[0052] Figure 9 This diagram illustrates the structure of the inner side of the annular plate-shaped structure corresponding to the weight reduction blocks in one embodiment of the present invention.

[0053] Figure 10 The diagram shows a top-view schematic of the enlarged block structure in one embodiment of the present invention.

[0054] Figure 11 This diagram illustrates the structure of the inner side of the enlarged block corresponding to the annular plate-like structure in one embodiment of the present invention.

[0055] Figure 12 The diagram shows a top view of the structure of a closed adjacent block in one embodiment of the present invention.

[0056] Figure 13 This diagram illustrates the structure of the inner side of the annular plate-like structure corresponding to the closed adjacent block in one embodiment of the present invention.

[0057] Figure 14 An embodiment of the present invention is shown. Figure 12 Schematic diagram of the local structure in the C direction.

[0058] Figure 15 The diagram shows a top view of the structure of the closed block in one embodiment of the present invention.

[0059] Figure 16 This diagram illustrates the structure of the inner side of the annular plate-shaped structure corresponding to the closed block in one embodiment of the present invention.

[0060] Figure 17 An embodiment of the present invention is shown. Figure 15 Schematic diagram of the local structure in the D direction. Detailed Implementation

[0061] Example

[0062] like Figures 1 to 17 As shown, the platform structure used for the intelligent lowering system of vertical shield tunnels is a ring-shaped plate structure, which includes multiple splicing blocks with fan-shaped rings on both the upper and lower sides.

[0063] In practical applications, the platform structure is a ring-shaped plate structure, divided into 40 splicing blocks with a central angle of 9 degrees. If the intelligent deployment system is adjusted, the number and angle of the splicing blocks can be adjusted accordingly.

[0064] Each of the splicing blocks is a prefabricated structure made of reinforced concrete;

[0065] Each pair of adjacent splicing blocks is connected by a socket structure;

[0066] The multiple splicing blocks include standard block 1, embedded part block 2, weight reduction block 3, enlarged block 4, closed adjacent block 5, and closed block 6;

[0067] Each standard block 1 is a solid structure;

[0068] The radial dimension of each enlarged block 4 is larger than the radial dimension of the other splicing blocks;

[0069] Each embedded part block 2 and each enlarged block 4 has the same embedded anchor plate 10 on both the upper and lower sides, and an embedded screw 9 is inserted from bottom to top at the position of the embedded anchor plate 10.

[0070] Each pre-embedded screw 9 is secured to the vertical shield intelligent lowering system by setting a nut 11 at one end extending from the top of the corresponding pre-embedded part block 2;

[0071] Two or more hollow weight-reducing bodies 12 are embedded in each weight-reducing block 3;

[0072] Both sides of the closed block 6 are closed adjacent blocks 5, and the insertion direction of the socket structure between each closed adjacent block 5 is parallel to the axis of the fan ring shape.

[0073] The insertion direction of the socket structure on the side where each closed adjacent block 5 and closed block 6 are spliced ​​is parallel to the axial direction of the fan ring shape, and the insertion direction of the socket structure on the other side where it is spliced ​​with the other splicing blocks is the radial direction of the corresponding fan ring shape.

[0074] Except for the closed adjacent block 5 and the closed block 6, the insertion direction of the socket structure of all splicing blocks is the radial direction of the corresponding fan ring shape;

[0075] The top of the closed block 6 and the top of the two adjacent closed blocks 5 are fixed by a fixing steel plate 16.

[0076] This invention, while meeting the requirements of load bearing and ensuring high-precision stability of the system, combines modular design and prefabricated assembly installation to achieve rapid and efficient construction. At the same time, through detachable technology, it enables reuse and achieves the goal of green energy saving.

[0077] In some embodiments, each socket structure includes a groove 7 and a tenon 8 that matches the groove 7;

[0078] Each groove 7 and the corresponding tenon 8 are respectively set on the two splicing surfaces where two adjacent splicing blocks are spliced ​​together.

[0079] In some embodiments, each groove 7 is a dovetail groove.

[0080] In some embodiments, the top of each embedded part block 2 and each enlarged block 4 is located below the corresponding embedded anchor plate 10, and countersunk holes are provided at the positions corresponding to each embedded screw 9.

[0081] Each countersunk hole is used to install a double-ended nut 15, which is used to lock the corresponding pre-embedded screw 9.

[0082] In some embodiments, each hollow weight-reducing body 12 is a hollow structure made of PVC material;

[0083] Each hollow weight-reducing body 12 is either a cylinder or a prism.

[0084] In some embodiments, a screw fixing plate 18 is provided under both the closed block 6 and the two adjacent closed adjacent blocks 5, and a steel plate fixing screw 17 is provided from bottom to top at the position of the screw fixing plate 18. The steel plate fixing nut 19 is provided on the steel plate fixing screw 17 to fix it to the fixing steel plate 16.

[0085] The top of the closing block 6 and the two adjacent closing adjacent blocks 5 are located below the fixing steel plate 16, and countersunk holes are provided at the positions of each fixing screw 17 of the steel plate.

[0086] Each countersunk hole is used to install a double-ended nut 15, which is used to lock the corresponding steel plate fixing screw 17.

[0087] This invention also provides a construction method for a platform structure of a vertical shield tunneling intelligent lowering system, comprising the following steps:

[0088] Step 1: All splicing blocks are prefabricated in the factory and transported to the assembly site;

[0089] Step 2: Excavate the platform foundation pit; the depth of the pit should match the depth of the platform, and after the platform is placed in the pit, make the top of the platform flush with the ground.

[0090] Step 3: Position the two closed adjacent blocks 5 in sequence;

[0091] Step 4: Between the two closed adjacent blocks 5, place all the remaining splicing blocks except for the closed block 6 in a counterclockwise direction;

[0092] Step 5: Hoist the closing block 6 above the two adjacent closing blocks 5 and insert it between the two adjacent closing blocks 5 along the axial direction of the platform of the annular plate structure.

[0093] Step 6: After assembling all the splicing blocks, fix the sealing block 6 and the two adjacent sealing blocks 5 with a fixing steel plate 16.

[0094] In some embodiments, in step 4, the splicing method for sequentially positioning all remaining splicing blocks except for the closed block 6 between two closed adjacent blocks 5 in a counterclockwise direction is as follows: each splicing block is hoisted to the outside of the already positioned splicing block, the corresponding socket structure is aligned, inserted radially along the platform of the annular plate structure, and then fixed after adjusting its position.

[0095] In some embodiments, when disassembling the platform, the fixing steel plate 16 is removed first, and then the closing block 6 is lifted away along the axial direction of the annular plate structure platform. All splicing blocks are then removed in a clockwise or counterclockwise direction along the radial direction of the annular plate structure platform.

[0096] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A construction method for a platform structure used in a vertical shield tunneling intelligent lowering system, wherein the platform structure used in the vertical shield tunneling intelligent lowering system is a ring-shaped plate structure; characterized in that, It includes multiple splicing blocks with fan-shaped rings on both the top and bottom surfaces; Each of the aforementioned splicing blocks is a prefabricated structure made of reinforced concrete; Each pair of adjacent splicing blocks is connected by a socket structure; The multiple splicing blocks include standard blocks (1), embedded parts blocks (2), weight-reducing blocks (3), enlarged blocks (4), closed adjacent blocks (5), and closed blocks (6); Each of the aforementioned standard blocks (1) is a solid structure; The radial dimension of each enlarged block (4) is larger than the radial dimension of the other splicing blocks; Each of the pre-embedded parts (2) and each of the enlarged parts (4) are provided with the same pre-embedded anchor plate (10) on both the upper and lower sides, and a pre-embedded screw (9) is inserted from bottom to top at the position of the pre-embedded anchor plate (10). Each of the pre-embedded screws (9) is fastened to the vertical shield intelligent lowering system by means of a nut (11) at one end extending from the top of the corresponding pre-embedded part block (2); Two or more hollow weight-reducing bodies (12) are embedded in each of the aforementioned weight-reducing blocks (3); Both sides of the closed block (6) are the closed adjacent blocks (5), and the insertion direction of the socket structure between each of the closed adjacent blocks (5) is parallel to the axial direction of the fan ring shape. The insertion direction of the socket structure on the side where each of the closed adjacent blocks (5) is spliced ​​with the closed block (6) is parallel to the axial direction of the fan ring shape, and the insertion direction of the socket structure on the other side where it is spliced ​​with the other splicing blocks is the radial direction of the corresponding fan ring shape. The insertion direction of the socket structure of all the splicing blocks except the closed adjacent block (5) and the closed block (6) is the radial direction of the corresponding fan ring shape; The top of the closed block (6) and the top of the two adjacent closed adjacent blocks (5) are fixed by a fixing steel plate (16); The construction steps are as follows: Step 1: All splicing blocks are prefabricated in the factory and transported to the assembly site; Step 2: Excavate the platform foundation pit; the depth of the foundation pit matches the depth of the platform, and after the platform is placed in the foundation pit, make the top of the platform flush with the ground; Step 3: Position the two closed adjacent blocks in sequence (5); Step 4: Between the two closed adjacent blocks (5), place all the remaining splicing blocks except the closed block (6) in a counterclockwise direction; Between two closed adjacent blocks (5), the splicing method for all the remaining splicing blocks except the closed block (6) in a counterclockwise sequence is as follows: each splicing block is hoisted to the outside of the already positioned splicing block, the corresponding socket structure is aligned, inserted radially along the platform of the annular plate structure, and fixed after adjusting the position; Step 5: Hoist the closed block (6) above the two closed adjacent blocks (5) and insert it between the two closed adjacent blocks (5) along the axial direction of the platform of the annular plate structure; Step 6: After all the splicing blocks are assembled, fix the sealing block (6) and the two adjacent sealing adjacent blocks (5) with fixing steel plates (16).

2. The construction method for the platform structure of the intelligent vertical shield tunneling system according to claim 1, characterized in that, Each of the aforementioned socket structures includes a groove (7) and a tenon (8) that matches the groove (7); Each groove (7) and the corresponding tenon (8) are respectively provided on the two splicing surfaces where two adjacent splicing blocks are spliced ​​together.

3. The construction method for the platform structure of the intelligent vertical shield tunneling system according to claim 2, characterized in that, Each of the grooves (7) is a dovetail groove.

4. The construction method for the platform structure of the intelligent vertical shield tunneling system according to claim 1, characterized in that, On the top of each of the pre-embedded parts (2) and each of the enlarged parts (4), below the corresponding pre-embedded anchor plate (10), there are countersunk holes at the positions corresponding to each of the pre-embedded screws (9); Each of the countersunk holes is used to install a double-ended nut (15) to lock the corresponding pre-embedded screw (9) by the corresponding double-ended nut (15).

5. The construction method for the platform structure of the intelligent vertical shield tunneling system according to claim 1, characterized in that, Each of the hollow weight-reducing bodies (12) is a hollow structure made of PVC material; Each of the hollow weight-reducing bodies (12) is a cylinder or a prism.

6. The construction method for the platform structure of the intelligent vertical shield tunneling system according to claim 1, characterized in that, The closed block (6) and the two adjacent closed adjacent blocks (5) are provided with screw fixing plates (18) and steel plate fixing screws (17) are provided from bottom to top at the position of the screw fixing plate (18). The steel plate fixing nuts (19) are provided on the steel plate fixing screws (17) and fixed to the fixing steel plate (16). The upper part of the closed block (6) and the two adjacent closed adjacent blocks (5) are located below the fixed steel plate (16), and countersunk holes are provided at the positions of each fixed screw (17) of the steel plate. Each of the countersunk holes is used to install a double-ended nut (15) to lock the corresponding steel plate fixing screw (17) by the corresponding double-ended nut (15).

7. The construction method for the platform structure of the intelligent vertical shield tunneling system according to claim 1, characterized in that, When disassembling the platform, first remove the fixed steel plate (16), then lift the closing block (6) away along the axial direction of the platform with the annular plate structure, and then remove all the splicing blocks in the radial direction of the platform with the annular plate structure in a clockwise or counterclockwise manner.

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