Shield segment connecting device

Abstract

The utility model particularly relates to the technical field of shield segment connection, and discloses a shield segment connecting device which comprises a split segment, one end of the split segment is connected with a first water stop steel plate in a clamped mode, and the other end of the split segment is provided with a first clamping groove for the first water stop steel plate to be connected in an inserted mode. Two first notches are symmetrically formed in the inner side wall of the split pipe piece, two second notches are symmetrically formed in the inner side wall of the split pipe piece, and first connecting bolts are installed in the first notches. Through the arrangement of the split pipe pieces, the first water stop steel plate, the first clamping groove, the third notch, the fourth notch and the joint sealing material, the external size of the first water stop steel plate is sequentially matched with the internal size of the first clamping groove, the annular butt joint stability of the split pipe pieces is improved, then the third notch and the fourth notch are sequentially filled with the joint sealing material, and the joint sealing effect is improved. The surface of the first water stop steel plate is rough, the cohesiveness of the first water stop steel plate and the joint sealing material is improved, and therefore the sealing performance of the annular joint of the split pipe pieces is improved.

Description

Technical Field

[0001] This utility model belongs to the field of shield tunnel segment connection technology, and in particular relates to a shield tunnel segment connection device. Background Technology

[0002] Tunnel boring machine (TBM) segments are crucial components used in shield tunnel construction. They are precast concrete slabs used to form the tunnel walls during tunnel excavation by a tunnel boring machine (TBM). TBM segments typically have standard shapes and sizes and can be spliced ​​together to form a continuous tunnel structure. They are usually made of reinforced concrete, providing excellent compressive and bending resistance.

[0003] The existing method of connecting tunnel segments typically uses butt bolts to connect two adjacent segments. However, the gaps after the segments are butt-jointed are relatively large, which may lead to water leakage after plastering at the connection point, thus affecting the quality of the project. Utility Model Content

[0004] This utility model provides a shield tunnel segment connection device, which aims to solve the problem that the existing shield tunnel segment connection usually uses butt bolts to connect two adjacent segments. Due to the large gap after the segments are butt-jointed, water leakage may occur after the joint is plastered, thus affecting the quality of the project.

[0005] This utility model is implemented as follows: a shield tunnel segment connection device includes split segments. One end of each split segment is clamped with a water-stop steel plate, and the other end of each split segment has a groove for inserting the water-stop steel plate. The inner sidewall of each split segment has two symmetrical slots, and the inner sidewall of each split segment has two sets of slots. Each slot has a connecting bolt installed inside, and each slot has a connecting bolt installed inside. The end of each split segment near the water-stop steel plate has a slot, and the end of each split segment near the groove has a slot. The slots are filled with sealant in sequence.

[0006] Preferably, two lifting lugs are symmetrically fixed on the inner wall of the segment, and both lifting lugs are U-shaped, which improves the convenience of lifting the segment.

[0007] Preferably, a second water-stop steel plate is fixedly provided on the side wall of each of the split pipe segments. The second water-stop steel plate is arc-shaped and fixedly connected to the first water-stop steel plate to form an integral structure, which improves the overall stability of the first and second water-stop steel plates.

[0008] Preferably, a second groove is provided on the side wall of the split tube segment away from the second water-stop steel plate. The second groove is connected to the first groove in sequence. The internal dimensions of the first groove and the second groove are adapted to the external dimensions of the first water-stop steel plate and the second water-stop steel plate in sequence, which improves the stability of the split tube segment connection.

[0009] Preferably, the split tube segment has a groove five on the inner wall near the water-stop steel plate two, and a groove six on the inner wall near the slot two. The groove five and groove six are connected to the groove three and groove four in sequence, which improves the sealing performance of the longitudinal joint of the split tube segment.

[0010] Preferably, threaded sleeves are snapped onto the inner walls of both slots one for threaded connection to bolt one, and threaded sleeves are snapped onto the inner walls of both slots two for threaded connection to bolt two. The internal dimensions of threaded sleeves one and threaded sleeves two are the same, which improves the stability of the split tube segment connection.

[0011] Compared with the prior art, the embodiments of this application have the following main advantages:

[0012] Firstly, by setting up separate pipe segments, a water-stop steel plate 1, a slot 1, a groove 3, a groove 4, and sealant, the external dimensions of the water-stop steel plate 1 are adapted to the internal dimensions of the slot 1, improving the stability of the circumferential joint of the separate pipe segments. Then, the sealant is sequentially filled into the interior of the grooves 3 and 4. The rough surface of the water-stop steel plate 1 increases the adhesion with the sealant, thereby improving the sealing performance of the circumferential joint of the separate pipe segments. Secondly, by setting up a water-stop steel plate 2, a groove 5, a slot 2, and a groove 6, the water-stop steel plate 2 is sequentially inserted into the interior of the slot 2. Then, the sealant is filled into the interior of the grooves 5 and 6, which can improve the sealing performance of the longitudinal joint of the separate pipe segments. Attached Figure Description

[0013] Figure 1 This is a frontal three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a frontal view of the mounting structure of this utility model.

[0015] Figure 3 This is a frontal three-dimensional structural diagram of the split-tube segment of this utility model.

[0016] Figure 4 This is a schematic diagram of the split-segment structure of this utility model.

[0017] The attached diagram is labeled as follows: 1. Split segment; 2. Water-stop steel plate one; 3. Groove one; 4. Slot one; 5. Lifting lug; 6. Slot two; 7. Water-stop steel plate two; 8. Connecting bolt one; 9. Connecting bolt two; 10. Slot three; 11. Slot four; 12. Sealant; 13. Slot five; 14. Threaded sleeve one; 15. Threaded sleeve two; 16. Groove two; 17. Slot six. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] Please see Figure 1-4 The present invention provides an embodiment of a shield tunnel segment connection device, comprising a split segment 1, one end of which is clamped with a water-stop steel plate 2, and the other end of which has a slot 3 for inserting the water-stop steel plate 2. Two slots 4 are symmetrically opened on the inner wall of the split segment 1, and two sets of slots 6 are symmetrically opened on the inner wall of the split segment 1. Two lifting lugs 5 are symmetrically fixed on the inner wall of the split segment 1 by bolts. Both lifting lugs 5 are U-shaped for connecting to lifting devices. The lifting devices are lifting equipment used in the segment assembly construction. The lifting devices are existing technology and will not be described in detail here. This improves the convenience of lifting the split segment 1. Connecting bolts 8 are installed inside each slot 4 to connect the two ends of the split segment 1, and connecting bolts 9 are installed inside each slot 6 to connect the two sides of the split segment 1. The split segment 1 is close to the water-stop steel plate. The end of segment 1 is provided with a groove 11, and the end of segment 1 near groove 3 is provided with a groove 10. The interior of grooves 10 and 11 is filled with sealant 12. The sealant 12 can be waterproof mortar with a grade of C50. The external dimensions of the waterstop steel plate 2 are matched with the internal dimensions of groove 3, which improves the stability of the annular joint of segment 1. The sealant 12 is then filled into grooves 10 and 11. Under the action of gravity, the sealant 12 makes the interior of grooves 3, 10 and 11 densely filled. After the sealant 12 solidifies, the surface of the waterstop steel plate 2 is rough, which increases the contact area between the sealant 12 and segment 1 and waterstop steel plate 2, thereby improving the sealing performance of the annular joint of segment 1.

[0021] Water-stop steel plate 2 7 is fixedly installed on the side wall of each segment 1. The water-stop steel plate 2 7 is arc-shaped and fixedly connected with the water-stop steel plate 1 2 to form an integral structure, which improves the overall stability of the water-stop steel plate 1 2 and the water-stop steel plate 2 7.

[0022] On the side wall of the split segment 1 away from the water-stop steel plate 2 7, a groove 2 16 is provided. The groove 2 16 is connected to the groove 1 3 in sequence. The internal dimensions of the groove 1 3 and the groove 2 16 are adapted to the external dimensions of the water-stop steel plate 1 2 and the water-stop steel plate 2 7 in sequence, which improves the stability of the joint of the split segment 1. On the inner side wall of the split segment 1 near the water-stop steel plate 2 7, a slot 5 13 is provided. On the inner side wall of the split segment 1 near the groove 2 16, a slot 6 17 is provided. The slot 5 13 and the slot 6 17 are connected to the slot 3 10 and the slot 4 11 in sequence for the filling material 12 to fill, which improves the sealing of the longitudinal joint of the split segment 1.

[0023] Threaded sleeves 15 are snapped onto the inner walls of both slots 1-4 for threaded connection of bolt 8, and threaded sleeves 14 are snapped onto the inner walls of slots 2-6 for threaded connection of bolt 9. The internal dimensions of threaded sleeves 1-14 and 15-15 are the same, which improves the stability of the connection of the split tube segments 1.

[0024] Working Principle: When using this shield tunnel segment connection device, the operator first hoists the segment 1 to the inner bottom of the tunnel entrance using a lifting device. Then, the operator sequentially hoists the two segments 1 on either side of the segment 1. The operator inserts the water-stop steel plate 2 into the slot 3. By sliding the hoisted segment 1 horizontally, two adjacent threaded sleeves 15 can be connected. The operator then threads the connecting bolt 8 into the two threaded sleeves 15, thus achieving initial segment fixation. The operator then sequentially installs other segments using hoisting. The four separate pipe segments 1 are then formed into a single, integrated circular wall. The operator then evenly fills the groove 3 10 and groove 4 11 with the prepared sealant 12. Under the influence of gravity, the sealant 12 fills the groove 3, groove 3 10 and groove 4 11 densely. After the sealant 12 solidifies, the rough surface of the water-stop steel plate 2 increases the contact area between the sealant 12 and the separate pipe segments 1 and the water-stop steel plate 2, thereby improving the sealing performance of the annular joint of the separate pipe segments 1.

[0025] After installing one set of segments, the hoisting equipment moves forward to facilitate the installation of the next set of segments. The water-stop steel plate 27 is then sequentially snapped into the inside of the slot 216, and the adjacent threaded sleeve 14 is aligned to facilitate the threaded connection of the bolt 29 into the inside of the threaded sleeve 14, thereby realizing the installation of another set of segments. Then, the sealant 12 is filled into the inside of the slot 5 13 and the slot 6 17 to improve the sealing of the longitudinal joint of the split segment 1.

[0026] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0027] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0028] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A shield tunnel segment connection device, characterized in that, The device includes a split tube segment (1): one end of the split tube segment (1) is clamped with a water-stop steel plate (2), and the other end of the split tube segment (1) is provided with a groove (3) for the water-stop steel plate (2) to be inserted. The inner side wall of the split tube segment (1) is symmetrically provided with two slots (4). The inner side wall of the split tube segment (1) is symmetrically provided with two sets of slots (6). The slots (4) are all equipped with connecting bolts (8), and the slots (6) are all equipped with connecting bolts (9). The end of the split tube segment (1) near the water-stop steel plate (2) is provided with a slot (11), and the end of the split tube segment (1) near the groove (3) is provided with a slot (10). The slots (10) and slots (11) are filled with sealant (12) in sequence.

2. The shield tunnel segment connection device according to claim 1, characterized in that: Two lifting lugs (5) are symmetrically fixed on the inner wall of the split tube segment (1), and both lifting lugs (5) are U-shaped.

3. The shield tunnel segment connection device according to claim 2, characterized in that: Each of the split tube segments (1) is fixed with a second water-stop steel plate (7), and the second water-stop steel plate (7) is fixedly connected to the first water-stop steel plate (2) in an arc shape to form an integral structure.

4. A shield tunnel segment connection device according to claim 3, characterized in that: The split tube segment (1) has a slot 2 (16) on the side wall away from the water-stop steel plate 2 (7). The slot 2 (16) is connected to the slot 1 (3) in sequence. The internal dimensions of the slot 1 (3) and the slot 2 (16) are adapted to the external dimensions of the water-stop steel plate 1 (2) and the water-stop steel plate 2 (7) in sequence.

5. A shield tunnel segment connection device according to claim 4, characterized in that: The split tube segment (1) has a slot five (13) on its inner side wall near the water-stop steel plate two (7), and a slot six (17) is provided on its inner side wall near the slot two (16). The slot five (13) and the slot six (17) are connected to the slot three (10) and the slot four (11) in sequence.

6. A shield tunnel segment connection device according to claim 1, characterized in that: Both slots 1 (4) have threaded sleeves 2 (15) attached to their inner walls for threaded connection of bolt 1 (8), and both slots 2 (6) have threaded sleeves 1 (14) attached to their inner walls for threaded connection of bolt 2 (9). The internal dimensions of threaded sleeves 1 (14) and threaded sleeves 2 (15) are the same.

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