Duct piece supporting device for first-tunnel and second-station shield tunnel
By designing a pipe sheet support device for tunneling first and then stationing shield tunnels, the problem of traditional technology being difficult to effectively support and fix permanent pipe sheets in shield tunnels is solved, and the stable fixation of pipe sheets and the improvement of construction safety is achieved.
Patent Information
- Application Number
- CN202421589374.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-07-05
AI Technical Summary
During the urban subway construction process, traditional shield tunnel construction technology is difficult to effectively support and fix the permanent pipe segments of the built shield tunnel, resulting in the pipe segments being misaligned and broken, and even causing the tunnel structure to be instable, endanger the safety of construction workers and increase costs and time.
A pipe sheet support device for tunneling first and then stationing shield tunnels is designed, including two bottom brackets arranged symmetrically, two side top brackets and one top bracket. The supporting frame ring adapted to the inner side of the shield tunnel pipe sheet is formed through the connecting structure to ensure the stable and fixed pipe sheet.
The device is simple in structure and convenient in installation. It can effectively fix the shield tunnel pipe segments to prevent damage during the excavation and construction of the subway station, improve the safety and efficiency of construction, and solve the problems of pipe segment support and fixation.
Smart Images
Figure CN222650008U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of tunnel construction equipment, in particular to a segment supporting device for a shield tunnel with tunneling first and station later. Background Art
[0002] In the process of urban subway construction, shield construction has become a common underground tunnel construction method. The shield method has the advantages of fast construction speed, high safety, and little interference with the ground. However, in some special cases, such as when it is necessary to build a subway station in a completed shield tunnel, the traditional shield construction technology has some problems that need to be solved.
[0003] Specifically, when a subway tunnel has been penetrated by a shield machine, but a subway station needs to be excavated at a specific location in the tunnel, the excavation process can easily cause damage to the existing structure of the tunnel. In particular, when excavating subway stations, the stability and integrity of the existing tunnel segments on both sides of the subway station excavation are crucial (among them, the segments for tunneling first and then stations are set with temporary segments at the reserved subway station locations. When excavating the subway station, the temporary segments need to be removed while protecting the permanent segments adjacent to the temporary segments). If the permanent segments are not effectively supported and fixed during the excavation process, it may cause the permanent segments to be dislocated or ruptured, or even cause more serious problems such as instability of the tunnel structure, thereby endangering the safety of construction workers and increasing construction costs and time.
[0004] Some solutions for segment support have also been proposed in the prior art, but these solutions still have some limitations in practical applications. For example, the installation and disassembly process of the support device is complicated and time-consuming, the strength and stability of the support structure are insufficient, or it cannot be flexibly applied to tunnel segments of different types and sizes. Therefore, how to design a device with a simple structure, convenient installation and disassembly, and the ability to reliably support the segments under different tunnel conditions has become a technical problem that needs to be solved urgently. In view of the above-mentioned problems in the prior art, there is an urgent need for a segment support device with a reasonable design, convenient installation, and stable and reliable performance to ensure the safety and integrity of the shield tunnel during the excavation and construction of the subway station. Utility Model Content
[0005] The utility model provides a segment support device for a shield tunnel with tunnel first and station later, which is used to solve the technical problem of how to effectively support and fix the permanent segments of the built shield tunnel to prevent them from being damaged during the excavation and construction of the subway station.
[0006] The utility model proposes a segment support device for a shield tunnel with a tunnel-first-tunnel-later-station structure, comprising: two first bottom supports and a second bottom support symmetrically arranged, two first side top supports and a second side top supports symmetrically arranged, and a top support; wherein a first connecting structure is arranged on the inner side of the first bottom support, a second connecting structure is arranged on the inner side of the second bottom support, a third connecting structure is arranged on the inner side of the first side top support, and a fourth connecting structure is arranged on the inner side of the second side top support; the outer peripheries of the first bottom support, the second bottom support, the first side top support, the top support, and the second side top support are connected end to end to form a support frame ring adapted to the inner side of the shield tunnel segment, the second connecting structure is respectively connected to the first connecting structure and the third connecting structure, and the fourth connecting structure is connected to the first connecting structure.
[0007] Preferably, the first bottom bracket includes a first arc-shaped support structure and a first fixing plate A and a first fixing plate B arranged at both ends of the first arc-shaped support structure, the first connecting structure includes a first transverse connecting rod arranged laterally on the inner side of the first arc-shaped support structure and a first vertical rod arranged vertically, and the first transverse connecting rod is connected to the rod body of the first vertical rod; the second bottom bracket includes a second arc-shaped support structure and a second fixing plate A and a second fixing plate B arranged at both ends of the second arc-shaped support structure, the second connecting structure includes a second transverse connecting rod arranged laterally on the inner side of the second arc-shaped support structure and a second vertical rod arranged vertically, and the second transverse connecting rod is connected to the rod body of the second vertical rod; the first fixing plate B and the second fixing plate A are detachably connected by bolts, the first side top bracket is respectively connected to the second fixing plate B and the top of the second vertical rod, and the second side top bracket is respectively connected to the first fixing plate A and the top of the first vertical rod.
[0008] Preferably, a transverse connecting rod is provided between the first vertical rod and the second vertical rod, and the first vertical rod and the second vertical rod are connected by the transverse connecting rod.
[0009] Preferably, the first side top bracket includes a first arc-shaped side top support structure and a third fixed plate A and a third fixed plate B arranged on both sides of the first arc-shaped side top support structure, and the third connecting structure includes a third vertical rod arranged on the inner side of the first arc-shaped side top support structure; the second side top bracket includes a second arc-shaped side top support structure and a fourth fixed plate A and a fourth fixed plate B arranged on both sides of the second arc-shaped side top support structure, and the fourth connecting structure includes a fourth vertical rod arranged on the inner side of the second arc-shaped side top support structure, the top bracket is connected between the third fixed plate B and the fourth fixed plate A, the first vertical rod is connected to the fourth vertical rod, the third vertical rod is connected to the second vertical rod, the second fixed plate B is detachably connected to the third fixed plate A by bolts, and the fourth fixed plate B is detachably connected to the first fixed plate A by bolts.
[0010] Preferably, a first mounting plate A is provided at the top of the first vertical rod, a second mounting plate A is provided at the top of the second vertical rod, a second mounting plate B is provided at the bottom of the third vertical rod, and a first mounting plate B is provided at the bottom of the fourth vertical rod. The first mounting plate A and the first mounting plate B are detachably connected via a locking bolt assembly, and the second mounting plate A and the second mounting plate B are detachably connected via a locking bolt assembly.
[0011] Preferably, a plurality of groups of reinforcing ribs are respectively arranged between the first mounting plate A and the first vertical rod, between the first mounting plate B and the fourth vertical rod, between the second mounting plate A and the second vertical rod, and between the second mounting plate B and the third vertical rod.
[0012] Preferably, the first vertical rod, the second transverse connecting rod, the first transverse connecting rod, the second vertical rod, the third vertical rod and the fourth vertical rod are respectively made of I-beams.
[0013] Preferably, the locking bolt assembly includes 6 sets of locking bolts.
[0014] Beneficial effects: By providing a segment support device for a shield tunnel with tunnel first and station later, it can be used to protect the built shield tunnel segments during the excavation and construction of subway stations to prevent them from being damaged; the device consists of two bottom brackets arranged symmetrically, two side top brackets arranged symmetrically and a top bracket, and a connection structure is arranged on the inner side of each bracket, which is easy to manufacture and install. The various components are connected to each other, making the installation process simple and quick. The outer peripheries of the bottom bracket, the side top bracket and the top bracket are connected end to end to form a support frame ring adapted to the inner side of the shield tunnel segment, which can effectively fix the segment and facilitate disassembly. Through the arrangement of the first connection structure, the second connection structure, the third connection structure and the fourth connection structure, a stable connection is formed between the various brackets, thereby ensuring that the entire device has good support performance during the excavation and construction of the subway station, and can reliably fix the shield tunnel segment to prevent it from being damaged. It has a simple structure, is easy to install, and has stable support performance, can effectively fix the shield tunnel segment, and prevent the segment from being damaged during the excavation and construction of the subway station, thereby improving the safety and efficiency of the construction. This solves the technical problem of how to effectively support and fix the permanent segments of the completed shield tunnel to prevent them from being damaged during the excavation and construction of the subway station. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:
[0016] Figure 1This is a front view of the pipe segment support device proposed in the first embodiment of the utility model;
[0017] Figure 2 It is an enlarged view of a part A of the front view of the pipe segment support device proposed in the first embodiment of the utility model;
[0018] Figure 3 This is a schematic diagram of the partial structure of the pipe segment support device proposed in Example 1 of the utility model.
[0019] Icons: 10-segment support device; 11-first bottom bracket; 12-second bottom bracket; 13-first side top bracket; 14-second side top bracket; 15-top bracket; 16-first connecting structure; 17-second connecting structure; 18-third connecting structure; 19-fourth connecting structure; 20-first arc-shaped supporting structure; 21-first fixing plate A; 22-first fixing plate B; 23-first transverse connecting rod; 24-first vertical rod; 25-second arc-shaped supporting structure; 26-second fixing plate A; 27 -Second fixed plate B; 28-Second transverse connecting rod; 29-Second vertical rod; 30-Transverse connecting rod; 31-First arc-shaped side top supporting structure; 32-Third fixed plate A; 33-Third fixed plate B; 34-Third vertical rod; 35-Fourth fixed plate A; 36-Fourth fixed plate B; 37-Fourth vertical rod; 38-First mounting plate A; 39-Second mounting plate A; 40-Second mounting plate B; 41-First mounting plate B; 42-Reinforcing ribs; 43-Locking bolts; 44-Second arc-shaped side top supporting structure. DETAILED DESCRIPTION
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.
[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0022] Example 1
[0023] See also Figures 1 to 3, a segment support device 10 for a shield tunnel with a tunnel first and a station later proposed in an embodiment of the utility model, comprising: two first bottom supports 11 and a second bottom support 12 symmetrically arranged, two first side top supports 13 and a second side top support 14 symmetrically arranged, and a top support 15; wherein a first connecting structure 16 is arranged on the inner side of the first bottom support 11, a second connecting structure 17 is arranged on the inner side of the second bottom support 12, a third connecting structure 18 is arranged on the inner side of the first side top support 13, and a fourth connecting structure 19 is arranged on the inner side of the second side top support 14; the outer peripheries of the first bottom support 11, the second bottom support 12, the first side top support 13, the top support 15 and the second side top support 14 are connected end to end to form a support frame ring adapted to the inner side of the shield tunnel segment, the second connecting structure 17 is connected to the first connecting structure 16 and the third connecting structure 18 respectively, and the fourth connecting structure 19 is connected to the first connecting structure 16.
[0024] During the construction of the subway, when the subway station needs to be excavated in the shield tunnel that has been penetrated, in order to ensure the stability and integrity of the permanent tunnel segments during the excavation process, a segment support device 10 for the shield tunnel of tunnel first and station later is used. The device includes two first bottom brackets 11 and second bottom brackets 12 arranged symmetrically to each other, two first side top brackets 13 and second side top brackets 14 arranged symmetrically to each other, and a top bracket 15.
[0025] In the specific implementation process: the first bottom bracket 11 and the second bottom bracket 12 are respectively placed on both sides of the bottom of the permanent tunnel segment to be supported. The first bottom bracket 11 and the second bottom bracket 12 are respectively provided with a first connecting structure 16 and a second connecting structure 17 on the inner side. The first side top bracket 13 and the second side top bracket 14 are respectively installed on the left and right sides of the permanent tunnel segment. The third connecting structure 18 is provided on the inner side of the first side top bracket 13, and the fourth connecting structure 19 is provided on the inner side of the second side top bracket 14. The relative positions of the first bottom bracket 11, the second bottom bracket 12 and the first side top bracket 13 are fixed by connecting the second connecting structure 17 with the first connecting structure 16 and the third connecting structure 18 respectively. The relative positions of the second side top bracket 14 and the first bottom bracket 11 are fixed by connecting the fourth connecting structure 19 with the first connecting structure 16. The top bracket 15 is installed on the top of the permanent tunnel segment and connected to the tops of the first side top bracket 13 and the second side top bracket 14. Through the above steps, the outer circumferences of the first bottom bracket 11, the second bottom bracket 12, the first side top bracket 13, the second side top bracket 14 and the top bracket 15 are connected end to end to form a support frame ring adapted to the inner side of the shield tunnel segment, thereby providing reliable support and fixation for the tunnel segment.
[0026] The support device is composed of a small number of parts, with a simple structure, easy to process and install on site; the connection structure is adopted between the parts, which can be quickly assembled and disassembled, improving the construction efficiency; the design of the support frame ring ensures that the whole device has good stability during the excavation process, and can effectively prevent the dislocation and rupture of the permanent segments of the tunnel; in conjunction with multiple segment support devices 10 for shield tunnels with tunnels first and stations later, the segment support device 10 can reliably support the permanent segments of the tunnel, avoid the instability of the tunnel structure, ensure the safety of the construction personnel, and reduce the risks and costs during the construction process. In actual application, the segment support device 10 for shield tunnels with tunnels first and stations later not only effectively solves the problem of supporting and fixing the tunnel segments during the excavation of subway stations, but also significantly improves the safety and efficiency of construction.
[0027] Example 2
[0028] On the basis of the above-mentioned embodiments, in order to further improve the structural stability and installation convenience of the segment support device 10 used in the shield tunnel with tunneling first and station later, the present embodiment optimizes the structure of each bracket.
[0029] The first bottom bracket 11 includes a first arc-shaped support structure 20 and a first fixing plate A21 and a first fixing plate B22 arranged at both ends of the first arc-shaped support structure 20. The first connecting structure 16 includes a first transverse connecting rod 23 arranged transversely on the inner side of the first arc-shaped support structure 20 and a first vertical rod 24 arranged vertically, and the first transverse connecting rod 23 is connected to the rod body of the first vertical rod 24. The second bottom bracket 12 includes a second arc-shaped support structure 25 and a second fixing plate A26 and a second fixing plate B27 arranged at both ends of the second arc-shaped support structure 25. The second connecting structure 17 includes a second transverse connecting rod 28 arranged transversely on the inner side of the second arc-shaped support structure 25 and a second vertical rod 29 arranged vertically, and the second transverse connecting rod 28 is connected to the rod body of the second vertical rod 29. Connection method: The first fixing plate B22 and the second fixing plate A26 are detachably connected by bolts. The first side top bracket 13 is connected to the second fixing plate B27 and the top of the second vertical rod 29 respectively, and the second side top bracket 14 is connected to the first fixing plate A21 and the top of the first vertical rod 24 respectively.
[0030] A transverse connecting rod 30 is provided between the first vertical rod 24 and the second vertical rod 29, and the first vertical rod 24 and the second vertical rod 29 are connected by the transverse connecting rod 30, so as to further enhance the overall stability of the bracket. The first side top bracket 13 includes a first arc-shaped side top support structure 31 and a third fixing plate A32 and a third fixing plate B33 arranged on both sides of the first arc-shaped side top support structure 31. The third connecting structure 18 includes a third vertical rod 34 arranged on the inner side of the first arc-shaped side top support structure 31. The second side top bracket 14 includes a second arc-shaped side top support structure 44 and a fourth fixing plate A35 and a fourth fixing plate B36 arranged on both sides of the second arc-shaped side top support structure 44. The fourth connecting structure 19 includes a fourth vertical rod 37 arranged on the inner side of the second arc-shaped side top support structure 44. The top bracket 15 is connected between the third fixing plate B33 and the fourth fixing plate A35. The first vertical rod 24 is connected to the fourth vertical rod 37, and the third vertical rod 34 is connected to the second vertical rod 29. The second fixing plate B27 and the third fixing plate A32 are detachably connected by bolts, and the fourth fixing plate B36 and the first fixing plate A21 are detachably connected by bolts.
[0031] Through the above optimized design, the segment support device 10 in this embodiment not only has the advantages of simple structure and convenient installation, but also further enhances the overall stability and support performance of the bracket through the combination of the arc-shaped support structure and the vertical rods and the transverse connecting rods 30. Specifically:
[0032] The arc-shaped support structure can better adapt to the arc-shaped inner wall of the tunnel segment, improving the fit and support effect of the support device. The vertical and horizontal connecting rods 30 and the horizontal connecting rods 30 form a stable frame structure, which enhances the rigidity and bearing capacity of the bracket. The bolted components are detachably connected by bolts, which not only ensures the firmness of the connection, but also facilitates the disassembly and reuse of the device. The support device can effectively fix the shield tunnel segment to prevent it from being damaged during the excavation and construction of the subway station, thereby improving the safety and efficiency of the construction.
[0033] Example 3
[0034] On the basis of the above-mentioned embodiments, in order to ensure the stability of the permanent tunnel segments when excavating the subway station, this embodiment makes a more detailed optimization design of the segment support device 10 used in the shield tunnel with tunnel first and station later.
[0035] A first mounting plate A38 is provided at the top of the first vertical rod 24, and a second mounting plate A39 is provided at the top of the second vertical rod 29. A second mounting plate B40 is provided at the bottom of the third vertical rod 34, and a first mounting plate B41 is provided at the bottom of the fourth vertical rod 37. Connection method: The first mounting plate A38 and the first mounting plate B41 are detachably connected by a locking bolt 43 assembly, and the second mounting plate A39 and the second mounting plate B40 are detachably connected by a locking bolt 43 assembly.
[0036] Multiple groups of reinforcing ribs 42 are respectively arranged between the first mounting plate A38 and the first vertical rod 24, the first mounting plate B and the fourth vertical rod 37, the second mounting plate A39 and the second vertical rod 29, and the second mounting plate B40 and the third vertical rod 34 to enhance the overall rigidity and stability of the bracket. The first vertical rod 24, the second transverse connecting rod 28, the first transverse connecting rod 23, the second vertical rod 29, the third vertical rod 34, and the fourth vertical rod 37 are respectively made of I-beams to ensure the strength and durability of the bracket. Each group of locking bolts 43 assembly includes 6 groups of locking bolts 43 to ensure that the connection between the components is firm and reliable, and easy to install and disassemble.
[0037] Through the above-mentioned optimized design, the segment support device 10 for the shield tunnel with tunnel first and station later of this embodiment has the following beneficial effects: simple structure. Through reasonable component design and connection mode, the support device has a simple structure, which is convenient for manufacturing and on-site installation; convenient installation. Through the detachable connection and locking bolt 43 assembly of bolts, the installation and disassembly of the device are faster, which improves the construction efficiency; stable support. Through the combined design of arc support structure, vertical rod, transverse connecting rod 30 and reinforcing rib 42, the support device has good rigidity and stability, which can effectively prevent the tunnel segment from being dislocated and broken during the excavation process; the material is strong and I-beam material is used to ensure the strength and durability of the bracket, which is suitable for various tunnel construction environments; construction safety. Through reliable support of the tunnel segment, the instability of the tunnel structure is avoided, the safety of construction personnel is guaranteed, and the risks and costs in the construction process are reduced. The segment support device 10 of this embodiment provides an effective solution in the excavation and construction process of the subway station, ensures the stability and integrity of the tunnel segment, and improves the safety and efficiency of the construction.
[0038] In short, the above are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims
1. A segment support device for a shield tunnel with tunneling first and station later, characterized in that: include: Two first bottom brackets and second bottom brackets are symmetrically arranged, two first side top brackets and second side top brackets are symmetrically arranged, and a top bracket; wherein a first connecting structure is arranged on the inner side of the first bottom bracket, a second connecting structure is arranged on the inner side of the second bottom bracket, a third connecting structure is arranged on the inner side of the first side top bracket, and a fourth connecting structure is arranged on the inner side of the second side top bracket; the outer peripheries of the first bottom bracket, the second bottom bracket, the first side top bracket, the top bracket and the second side top bracket are connected end to end to form a supporting frame ring adapted to the inner side of the shield tunnel segment, the second connecting structure is respectively connected to the first connecting structure and the third connecting structure, and the fourth connecting structure is connected to the first connecting structure.
2. The segment support device for a shield tunnel with tunneling first and station later according to claim 1 is characterized in that: The first bottom bracket includes a first arc-shaped support structure and a first fixed plate A and a first fixed plate B arranged at both ends of the first arc-shaped support structure, the first connecting structure includes a first transverse connecting rod arranged laterally on the inner side of the first arc-shaped support structure and a first vertical rod arranged vertically, and the first transverse connecting rod is connected to the rod body of the first vertical rod; the second bottom bracket includes a second arc-shaped support structure and a second fixed plate A and a second fixed plate B arranged at both ends of the second arc-shaped support structure, the second connecting structure includes a second transverse connecting rod arranged laterally on the inner side of the second arc-shaped support structure and a second vertical rod arranged vertically, and the second transverse connecting rod is connected to the rod body of the second vertical rod; the first fixing plate B and the second fixing plate A are detachably connected by bolts, the first side top bracket is respectively connected to the second fixing plate B and the top of the second vertical rod, and the second side top bracket is respectively connected to the first fixing plate A and the top of the first vertical rod.
3. The segment support device for a shield tunnel with tunneling first and station later according to claim 2 is characterized in that: A transverse connecting rod is provided between the first vertical rod and the second vertical rod, and the first vertical rod and the second vertical rod are connected by the transverse connecting rod.
4. The segment support device for a shield tunnel with tunneling first and station later according to claim 3 is characterized in that: The first side top bracket includes a first arc-shaped side top supporting structure and a third fixing plate A and a third fixing plate B arranged on both sides of the first arc-shaped side top supporting structure, and the third connecting structure includes a third vertical rod arranged on the inner side of the first arc-shaped side top supporting structure; the second side top bracket includes a second arc-shaped side top supporting structure and a fourth fixing plate A and a fourth fixing plate B arranged on both sides of the second arc-shaped side top supporting structure, and the fourth connecting structure includes a fourth vertical rod arranged on the inner side of the second arc-shaped side top supporting structure, the top bracket is connected between the third fixing plate B and the fourth fixing plate A, the first vertical rod is connected to the fourth vertical rod, the third vertical rod is connected to the second vertical rod, the second fixing plate B is detachably connected to the third fixing plate A by bolts, and the fourth fixing plate B is detachably connected to the first fixing plate A by bolts.
5. The segment support device for a shield tunnel with tunneling first and station later according to claim 4 is characterized in that: A first mounting plate A is provided at the top of the first vertical rod, a second mounting plate A is provided at the top of the second vertical rod, a second mounting plate B is provided at the bottom of the third vertical rod, and a first mounting plate B is provided at the bottom of the fourth vertical rod. The first mounting plate A and the first mounting plate B are detachably connected via a locking bolt assembly, and the second mounting plate A and the second mounting plate B are detachably connected via a locking bolt assembly.
6. The segment support device for a shield tunnel with tunneling first and station later according to claim 5 is characterized in that: A plurality of groups of reinforcing ribs are respectively arranged between the first mounting plate A and the first vertical rod, between the first mounting plate B and the fourth vertical rod, between the second mounting plate A and the second vertical rod, and between the second mounting plate B and the third vertical rod.
7. The segment support device for a shield tunnel constructed before tunneling according to claim 6 is characterized in that: The first vertical rod, the second transverse connecting rod, the first transverse connecting rod, the second vertical rod, the third vertical rod and the fourth vertical rod are respectively made of I-beams.
8. The segment support device for a shield tunnel constructed before tunneling according to claim 6 is characterized in that: The locking bolt assembly includes 6 groups of locking bolts.