A shield tunnel lining round ring and an assembling method thereof

Abstract

The application discloses a shield tunnel lining circular ring and a splicing method. The shield tunnel lining circular ring comprises a plurality of wedge-shaped blocks, one or more of which are located in the upper half ring of the shield tunnel lining circular ring, wherein each wedge-shaped block is provided with two longitudinal wedge-shaped surfaces; a plurality of adjacent blocks, wherein each adjacent block is provided with one longitudinal wedge-shaped surface and one non-longitudinal wedge-shaped surface, and the longitudinal wedge-shaped surface of the adjacent block is matched with the longitudinal wedge-shaped surface of the wedge-shaped block; and a plurality of standard blocks, wherein each standard block is located between the non-longitudinal wedge-shaped surfaces of the plurality of adjacent blocks to form the shield tunnel lining circular ring together with the plurality of wedge-shaped blocks and the plurality of adjacent blocks. The application can solve the technical problem that when the capping block in the shield tunnel lining circular ring is located in the lower half section of the lining circular ring, the insertion difficulty of the capping block is greatly increased, and local damage of the lining circular ring is easily caused.

Description

Technical Field

[0001] This invention relates to the field of tunnel engineering technology using the shield tunneling method, specifically to a shield tunnel lining ring and its assembly method. Background Technology

[0002] In existing technologies, tunnel structures constructed using the shield tunneling method generally consist of several prefabricated reinforced concrete segments assembled in a specific sequence to form a ring structure. Among the segments that make up this ring structure, the last segment assembled is usually called the capping block, the segments adjacent to the capping block are called adjacent blocks, and the remaining segments are called standard blocks. That is, a shield tunnel lining ring typically consists of multiple standard blocks, two adjacent blocks, and one capping block.

[0003] Taking a general wedge ring divided into 10 blocks as an example, the assembly sequence is as follows: First, assemble the standard block B4, then continue to assemble the standard blocks B5→B3→B6→B2→B7→B1 symmetrically one by one, then assemble the adjacent blocks L2→L1, and finally assemble the top block F to close the ring.

[0004] The assembly sequence of the segments in the examples above can be adjusted according to the actual site conditions, equipment conditions, or operating habits. However, the order of assembling the standard blocks first, then the adjacent blocks, and finally assembling the capping blocks after all other segments are in place remains fixed.

[0005] Figure 1 This is a schematic diagram of the shield tunnel lining ring used in the existing technology, where r is the radius of the inner arc surface of the segment lining ring, R is the radius of the outer arc surface of the segment lining ring; B is the standard ring width of the segment lining ring, Bmin is the minimum ring width, Bmax is the maximum ring width, and the wedge amount Δ = Bmax - Bmin; B1 to B7 are standard blocks, L1 and L2 are adjacent blocks, and F is the capping block.

[0006] In existing technologies, the capping blocks are assembled by longitudinal insertion. The longitudinal direction refers to the axial direction of the tunnel lining ring, which is also the direction of tunnel boring machine (TBM) excavation. The longitudinal insertion direction of the capping block is opposite to the TBM's forward direction. Therefore, the capping block is an insert block with a longitudinal wedge shape.

[0007] The position of the capping block on the cross section of the lining ring may be located at any feasible assembly position, depending on the dynamic selection of the optimal assembly point scheme.

[0008] Since the capping block is the last longitudinal insertion block assembled in the entire ring, its successful placement is significantly affected by the assembly accuracy of the other segments that were placed before the capping block. The longitudinal insertion resistance of the capping block comes from two aspects: first, the circular "gap" space left after the other segments are assembled; second, the compressive force of the waterstop strip between the segment joints.

[0009] In related technologies, when the capping block is located in the upper half of the lining ring, it is beneficial for ensuring assembly quality, waterproofing quality, and uniform stress on the lining ring, and it is also convenient for construction.

[0010] When the capping block is located in the lower half of the lining ring, that is, before the capping block is inserted longitudinally, the "gap" left by the other segments after assembly is located in the lower half of the ring. Due to factors such as gravity, incomplete circumferential compression of the waterstop strip, and construction errors, the segments assembled earlier tend to slide towards the "gap" in the lower half of the ring. As positioning errors accumulate, the spatial size of this "gap" is likely to be smaller than the theoretical value. This will greatly increase the difficulty of inserting the capping block located in the lower half of the ring. When forcibly inserted with a large jack reaction force, it will cause local damage to the segments, or the waterstop strip will be "rubbed" up longitudinally and shifted or even damaged.

[0011] Therefore, to avoid potential problems when the capping block is located in the lower half of the cross section, existing technologies often abandon the optimal assembly point and instead choose an assembly point in the upper half of the ring to reduce construction difficulty. Summary of the Invention

[0012] The present invention aims to provide a shield tunnel lining ring and its assembly method, which can solve the above-mentioned technical problems.

[0013] According to one aspect of the present invention, a shield tunnel lining ring is provided, comprising: a plurality of wedge blocks, one or more of which are located in the upper half of the shield tunnel lining ring, wherein each wedge block has two longitudinal wedge surfaces; a plurality of adjacent blocks, wherein each adjacent block has a longitudinal wedge surface and a non-longitudinal wedge surface, wherein the longitudinal wedge surface of the adjacent block matches the longitudinal wedge surface of the wedge block; and a plurality of standard blocks, wherein each standard block is located between the non-longitudinal wedge surfaces of the plurality of adjacent blocks, so as to form the shield tunnel lining ring together with the plurality of wedge blocks and the plurality of adjacent blocks.

[0014] Preferably, the multiple wedge blocks include: a first wedge block F1, a second wedge block F2, and a third wedge block F3; the multiple pairs of adjacent blocks include: a first pair of adjacent blocks L1A and L1B, located on both sides of the first wedge block F1; a second pair of adjacent blocks L2A and L2B, located on both sides of the second wedge block F2; and a third pair of adjacent blocks L3A and L3B, located on both sides of the third wedge block F3; the multiple standard blocks include: a first standard block B1, located between the second adjacent block L1B in the first pair of adjacent blocks L1A and L1B and the first adjacent block L2A in the second pair of adjacent blocks L2A and L2B; and a second standard block B2, located between the first adjacent block L1A in the first pair of adjacent blocks L1A and L1B. A is located between the second adjacent block L3B of the third pair of adjacent blocks L3A and L3B, and the third standard block B3 is located between the second adjacent block L2B of the second pair of adjacent blocks L2A and L2B and the first adjacent block L3A of the third pair of adjacent blocks L3A and L3B.

[0015] Preferably, the multiple wedge blocks include: a first wedge block F1, a second wedge block F2, and a third wedge block F3; the multiple pairs of adjacent blocks include: a first pair of adjacent blocks L1A and L1B, located on both sides of the first wedge block F1; a second pair of adjacent blocks L2A and L2B, located on both sides of the second wedge block F2; and a third pair of adjacent blocks L3A and L3B, located on both sides of the third wedge block F3; the multiple standard blocks include: a first standard block B1, located between the second adjacent block L1B in the first pair of adjacent blocks L1A and L1B and the first adjacent block L2A in the second pair of adjacent blocks L2A and L2B; and a second standard block B2, located between the first adjacent block L1A in the first pair of adjacent blocks L1A and L1B and the second adjacent block L3B in the third pair of adjacent blocks L3A and L3B.

[0016] Preferably, the second adjacent block L2B in the second pair of adjacent blocks L2A and L2B and the first adjacent block L3A in the third pair of adjacent blocks L3A and L3B are connected.

[0017] Preferably, one or more of the wedge-shaped blocks are located in the upper half of the shield tunnel lining ring.

[0018] According to another aspect of the present invention, a method for assembling a shield tunnel lining ring is provided, comprising: assembling multiple wedge blocks and multiple adjacent blocks, wherein each wedge block has two longitudinal wedge surfaces, and each adjacent block has one longitudinal wedge surface and one non-longitudinal wedge surface, wherein the longitudinal wedge surface of the adjacent block matches the longitudinal wedge surface of the wedge block; assembling the multiple adjacent blocks with multiple standard blocks, wherein each standard block is located between the non-longitudinal wedge surfaces of the multiple adjacent blocks; and assembling one or more of the multiple wedge blocks to the upper half of the shield tunnel lining ring and using them as the capping block of the shield tunnel lining ring.

[0019] Preferably, the first wedge block (F1) is assembled with the first pair of adjacent blocks (L1A, L1B), the second wedge block (F2) is assembled with the second pair of adjacent blocks (L2A, L2B), and the third wedge block (F3) is assembled with the third pair of adjacent blocks (L3A, L3B). The assembled first pair of adjacent blocks (L1A, L1B), the assembled second pair of adjacent blocks (L2A, L2B), and the assembled third pair of adjacent blocks (L3A, L3B) are assembled with the first standard block (B1) and the second standard block (B2) to form the shield tunnel lining ring. The first wedge block (F1) is located in the upper half of the shield tunnel lining ring and serves as the capping block of the shield tunnel lining ring.

[0020] Preferably, the first wedge block (F1) is assembled with the first pair of adjacent blocks (L1A, L1B), the second wedge block (F2) is assembled with the second pair of adjacent blocks (L2A, L2B), and the third wedge block (F3) is assembled with the third pair of adjacent blocks (L3A, L3B). The assembled first pair of adjacent blocks (L1A, L1B), the assembled second pair of adjacent blocks (L2A, L2B), and the assembled third pair of adjacent blocks (L3A, L3B) are assembled with the first standard block (B1) and the second standard block (B2) to form the shield tunnel lining ring. The second wedge block (F2) and / or the third wedge block (F3) are located in the upper half of the shield tunnel lining ring and serve as the capping block of the shield tunnel lining ring.

[0021] Preferably, assembling the assembled first pair of adjacent blocks (L1 A, L1 B), the assembled second pair of adjacent blocks (L2 A, L2 B), and the assembled third pair of adjacent blocks (L3 A, L3 B) with the first standard block (B1) and the second standard block (B2) includes connecting the second adjacent block (L2 B) of the second pair of adjacent blocks (L2 A, L2 B) and the first adjacent block (L3 A) of the third pair of adjacent blocks (L3 A, L3 B).

[0022] Preferably, assembling the assembled first pair of adjacent blocks (L1 A, L1 B), the assembled second pair of adjacent blocks (L2 A, L2 B), and the assembled third pair of adjacent blocks (L3 A, L3 B) with the first standard block (B1) and the second standard block (B2) includes assembling the third standard block (B3) between the second adjacent block (L2 B) in the second pair of adjacent blocks (L2 A, L2 B) and the first adjacent block (L3 A) in the third pair of adjacent blocks (L3 A, L3 B).

[0023] This invention provides a shield tunnel lining ring and its assembly method, comprising: multiple wedge blocks, one or more of which are located in the upper half of the shield tunnel lining ring, wherein each wedge block has two longitudinal wedge surfaces; multiple adjacent blocks, each of which has one longitudinal wedge surface and one non-longitudinal wedge surface, wherein the longitudinal wedge surface of the adjacent block matches the longitudinal wedge surface of the wedge block; and multiple standard blocks, each of which is located between the non-longitudinal wedge surfaces of the multiple adjacent blocks, together with the multiple wedge blocks and the multiple adjacent blocks to form the shield tunnel lining ring. This invention solves the technical problem that when the capping block in the shield tunnel lining ring is located in the lower half of the lining ring, the insertion difficulty of the capping block increases significantly, and it easily leads to local damage to the lining ring. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0025] Figure 1 A schematic diagram of the circular lining ring used in existing shield tunnels is shown;

[0026] Figure 2 A schematic diagram of a shield tunnel lining ring according to Embodiment 1 of the present invention is shown;

[0027] Figure 3 A three-dimensional schematic diagram of a shield tunnel lining ring according to Embodiment 1 of the present invention is shown;

[0028] Figure 4 A schematic diagram of a shield tunnel lining ring according to Embodiment 2 of the present invention is shown; and

[0029] Figure 5 A schematic diagram of a shield tunnel lining ring according to Embodiment 3 of the present invention is shown. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Reference will now be made in detail to various embodiments of the invention, examples of which are shown in the accompanying drawings and described below. For ease of interpretation and precise definition in the appended claims, the terms “upper,” “lower,” “inner,” and “outer” are used to describe features with reference to their location in the exemplary embodiments shown in the figures.

[0032] This invention provides a shield tunnel lining ring, comprising: multiple wedge-shaped blocks, one or more of which are located in the upper half of the shield tunnel lining ring, wherein each wedge-shaped block has two longitudinal wedge-shaped surfaces; multiple adjacent blocks, each of which has one longitudinal wedge-shaped surface and one non-longitudinal wedge-shaped surface, wherein the longitudinal wedge-shaped surface of the adjacent block matches the longitudinal wedge-shaped surface of the wedge-shaped block; and multiple standard blocks, each of which is located between the non-longitudinal wedge-shaped surfaces of the multiple adjacent blocks, so as to form the shield tunnel lining ring together with the multiple wedge-shaped blocks and the multiple adjacent blocks.

[0033] In related technologies, when the capping block in the shield tunnel lining ring is located in the lower half of the lining ring, the insertion difficulty of the capping block increases significantly, and it is prone to local damage to the lining ring. In this embodiment of the invention, by arranging multiple wedge-shaped blocks at intervals on the lining ring, it is ensured that no matter how the lining ring rotates, at least one wedge-shaped block is distributed in the upper half of the ring that can be used as a capping block, thereby avoiding local damage caused by the capping block being located in the lower half of the lining ring.

[0034] According to an embodiment of the present invention, the plurality of wedge blocks include: a first wedge block F1, a second wedge block F2, and a third wedge block F3; the plurality of pairs of adjacent blocks include: a first pair of adjacent blocks L1A and L1B, located on both sides of the first wedge block F1; a second pair of adjacent blocks L2A and L2B, located on both sides of the second wedge block F2; and a third pair of adjacent blocks L3A and L3B, located on both sides of the third wedge block F3; the plurality of standard blocks include: a first standard block B1, located between the second adjacent block L1B in the first pair of adjacent blocks L1A and L1B and the first adjacent block L2A in the second pair of adjacent blocks L2A and L2B; and a second standard block B2, located between the first pair of adjacent blocks L1A and L1B. The third standard block B3 is located between the first adjacent block L1A in B and the second adjacent block L3B in the third pair of adjacent blocks L3A and L3B.

[0035] According to an embodiment of the present invention, the multiple wedge blocks include: a first wedge block F1, a second wedge block F2, and a third wedge block F3; the multiple pairs of adjacent blocks include: a first pair of adjacent blocks L1A and L1B, located on both sides of the first wedge block F1; a second pair of adjacent blocks L2A and L2B, located on both sides of the second wedge block F2; and a third pair of adjacent blocks L3A and L3B, located on both sides of the third wedge block F3; the multiple standard blocks include: a first standard block B1, located between the second adjacent block L1B in the first pair of adjacent blocks L1A and L1B and the first adjacent block L2A in the second pair of adjacent blocks L2A and L2B; and a second standard block B2, located between the first adjacent block L1A in the first pair of adjacent blocks L1A and L1B and the second adjacent block L3B in the third pair of adjacent blocks L3A and L3B.

[0036] According to an embodiment of the present invention, the second adjacent block L2B of the second pair of adjacent blocks L2A and L2B and the first adjacent block L3A of the third pair of adjacent blocks L3A and L3B are connected; one or more of the multiple wedge blocks are located in the upper half of the shield tunnel lining ring and are used as capping blocks.

[0037] The position of the capping block on the cross section of the lining ring can be located at any feasible assembly position depending on the dynamic selection of the optimal assembly point scheme. In the prior art, to avoid potential problems when the capping block is located in the lower half of the cross section, the existing technology may usually abandon the optimal assembly point and instead choose an assembly point in the upper half of the ring. The embodiments of the present invention provide a segment division and assembly method with multiple longitudinal wedge blocks, which always ensures that at least one segment in the upper half of the ring has a longitudinal wedge shape. Any segment with a longitudinal wedge shape can be used as a capping block, thereby solving the technical problem in the prior art where the selection of the capping block assembly point and the assembly quality cannot be optimized simultaneously.

[0038] This invention also provides a method for assembling a shield tunnel lining ring, comprising: assembling multiple wedge blocks and multiple adjacent blocks, wherein each wedge block has two longitudinal wedge surfaces, and each adjacent block has one longitudinal wedge surface and one non-longitudinal wedge surface, wherein the longitudinal wedge surface of the adjacent block matches the longitudinal wedge surface of the wedge block; assembling the multiple adjacent blocks with multiple standard blocks, wherein each standard block is located between the non-longitudinal wedge surfaces of the multiple adjacent blocks; and assembling one or more of the multiple wedge blocks into the upper half of the shield tunnel lining ring and using them as the capping block of the shield tunnel lining ring.

[0039] According to an embodiment of the present invention, the assembly method of the shield tunnel lining ring includes: assembling a first wedge block (F1) with a first pair of adjacent blocks (L1A, L1B), assembling a second wedge block (F2) with a second pair of adjacent blocks (L2A, L2B), and assembling a third wedge block (F3) with a third pair of adjacent blocks (L3A, L3B); assembling the assembled first pair of adjacent blocks (L1A, L1B), the assembled second pair of adjacent blocks (L2A, L2B), and the assembled third pair of adjacent blocks (L3A, L3B) with a first standard block (B1) and a second standard block (B2) to jointly form the shield tunnel lining ring; wherein, the first wedge block (F1) is located in the upper half of the shield tunnel lining ring and serves as the capping block of the shield tunnel lining ring.

[0040] According to an embodiment of the present invention, the assembly method of the shield tunnel lining ring includes: assembling a first wedge block (F1) with a first pair of adjacent blocks (L1A, L1B), assembling a second wedge block (F2) with a second pair of adjacent blocks (L2A, L2B), and assembling a third wedge block (F3) with a third pair of adjacent blocks (L3A, L3B); assembling the assembled first pair of adjacent blocks (L1A, L1B), the assembled second pair of adjacent blocks (L2A, L2B), and the assembled third pair of adjacent blocks (L3A, L3B) with a first standard block (B1) and a second standard block (B2) to jointly form the shield tunnel lining ring; wherein the second wedge block (F2) and / or the third wedge block (F3) are located in the upper half of the shield tunnel lining ring and serve as the capping block of the shield tunnel lining ring.

[0041] According to an embodiment of the present invention, assembling the assembled first pair of adjacent blocks (L1A, L1B), the assembled second pair of adjacent blocks (L2A, L2B), and the assembled third pair of adjacent blocks (L3A, L3B) with the first standard block (B1) and the second standard block (B2) includes connecting the second adjacent block (L2B) in the second pair of adjacent blocks (L2A, L2B) and the first adjacent block (L3A) in the third pair of adjacent blocks (L3A, L3B).

[0042] Furthermore, according to an embodiment of the present invention, assembling the assembled first pair of adjacent blocks (L1A, L1B), the assembled second pair of adjacent blocks (L2A, L2B), and the assembled third pair of adjacent blocks (L3A, L3B) with the first standard block (B1) and the second standard block (B2) includes assembling the third standard block (B3) between the second adjacent block (L2B) in the second pair of adjacent blocks (L2A, L2B) and the first adjacent block (L3A) in the third pair of adjacent blocks (L3A, L3B).

[0043] In related technologies, when the capping block of the shield tunnel lining ring is located in the lower half of the cross-section, the insertion difficulty of the capping block increases significantly, and it easily leads to local damage to the lining ring. This invention provides a method for assembling the shield tunnel lining ring. Based on the assembly sequence of standard blocks or adjacent blocks, then longitudinal wedge blocks, and finally the longitudinal wedge blocks used as capping blocks in the upper half of the ring, the method ensures that standard blocks are not necessarily assembled before adjacent blocks. Depending on the specific assembly point, non-longitudinal wedge blocks located at the bottom can be selected for assembly first. This solves the technical problem of local damage to the lining ring when the capping block is located in the lower half of the cross-section, achieving the technical effects of ensuring assembly quality, waterproofing quality, uniform stress on the lining ring, and facilitating construction.

[0044] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. The present invention provides a shield tunnel lining ring and its assembly method, which can ensure assembly quality, waterproofing quality, uniform stress distribution on the lining ring, and facilitate construction.

[0045] like Figure 2 As shown, Figure 2 A schematic diagram of a shield tunnel lining ring according to an embodiment of the present invention is shown. As can be seen from the figure, a shield tunnel lining ring includes: longitudinal wedge blocks F1, F2, and F3; adjacent blocks L1A and L1B adjacent to F1; adjacent blocks L2A and L2B adjacent to F2; adjacent blocks L3A and L3B adjacent to F3; and standard blocks B1 and B2.

[0046] In the figure: r is the radius of the inner arc surface of the segment lining ring, R is the radius of the outer arc surface of the segment lining ring; B is the standard ring width of the segment lining ring, Bmin is the minimum ring width, Bmax is the maximum ring width, and the wedge amount Δ = Bmax - Bmin; B1~B2 are standard blocks, L1A and L1B are adjacent blocks adjacent to block F1, L2A and L2B are adjacent blocks adjacent to block F2, L3A and L3B are adjacent blocks adjacent to block F3, and F1, F2, and F3 are segment blocks with longitudinal wedges.

[0047] Figure 2 The assembly points shown are assembled in the following order: L3A→L2B→L3B→F3→L2A→F2→B2→B1→L1A→L1B→F1. At this point, F1 is the top block. Figure 4 The assembly points shown are assembled in the following order: L1B→L1A→F1→B1→B2→L2A→L3B→L2B→F2→L3A→F3. At this point, F3 is the top block. Similarly, F2 is chosen as the top block, and the process will not be repeated here.

[0048] Figure 3 A three-dimensional schematic diagram of a shield tunnel lining ring according to an embodiment of the present invention is shown. Figure 3It can be seen that the longitudinal insertion direction of the capping block, the tunneling direction of the tunnel boring machine, and the insertion direction of the longitudinal wedge block are all visible.

[0049] Figure 4 A schematic diagram of a shield tunnel lining ring according to Embodiment 2 of the present invention is shown. Figure 4 As shown, the assembly points are... Figure 2 The assembly points shown are obtained by rotating them 180°. When two assembly points are adjacent, a straight line can be fitted, ensuring staggered assembly. When different attitude targets need to be fitted, they can be obtained by having assembly points with different rotation angles adjacent to each other.

[0050] Figure 5 A schematic diagram of a shield tunnel lining ring according to Embodiment 3 of the present invention is shown. Figure 5 As shown, the third standard block (B3) is assembled between the second adjacent block (L2B) of the second pair of adjacent blocks (L2A, L2B) and the first adjacent block (L3A) of the third pair of adjacent blocks (L3A, L3B), thereby achieving symmetry and balance of the shield tunnel lining ring.

[0051] In summary, the existing technologies have problems where the difficulty of inserting the capping block in the shield tunnel lining ring increases significantly when it is located in the lower half of the cross-section, and this can easily lead to local damage to the lining ring. The present invention provides a shield tunnel lining ring and its assembly method, which arranges multiple wedge-shaped blocks at intervals on the lining ring. This ensures that no matter how the lining ring rotates, at least one wedge-shaped block is available as a capping block in the upper half of the ring. This avoids local damage caused by the capping block being located in the lower half of the cross-section, achieving the technical effects of ensuring assembly quality, waterproofing quality, uniform stress on the lining ring, and facilitating construction.

[0052] The following embodiments are merely examples to clearly illustrate the present invention and are not intended to limit the implementation of the invention. Those skilled in the art can make other variations or modifications based on the following description, and these variations, modifications, substitutions, and alterations arising from the principles and spirit of the present invention still fall within the protection scope of the present invention.

[0053] To ensure that the capping block is always located in the upper half of the ring while selecting the optimal assembly point, or to ensure that the capping block is always located in the upper half of the ring among all feasible assembly point schemes, this invention proposes a segmentation and assembly method with multiple longitudinal wedge blocks.

[0054] All feasible assembly points refer to all positions that ensure all longitudinal bolts can be inserted and staggered assembly can be achieved.

[0055] The main features of the segment division and assembly method of the present invention are as follows:

[0056] Among the several segments that make up the lining ring, there is more than one segment with a longitudinal wedge shape;

[0057] Multiple segments with longitudinal wedge shapes are distributed at certain intervals on the cross section of the lining ring. When the lining ring rotates, it is always ensured that at least one segment with a longitudinal wedge shape is distributed in the upper half of the ring.

[0058] Any segment with a longitudinal wedge shape can be used as a capping block.

[0059] The composition of a segment consisting of three longitudinal wedge blocks will now be explained using this example.

[0060] The block division scheme includes vertical wedge blocks F1, F2, and F3, adjacent blocks L1A and L1B adjacent to F1, adjacent blocks L2A and L2B adjacent to F2, adjacent blocks L3A and L3B adjacent to F3, and standard blocks B1 and B2, totaling 11 blocks.

[0061] The assembly sequence of each segment in this invention is basically the same as that in the prior art: first standard blocks or adjacent blocks, then longitudinal wedge blocks, and finally the longitudinal wedge blocks located in the upper half ring that serve as capping blocks are assembled.

[0062] Slightly different from the assembly sequence used in existing technical solutions, the standard block is not necessarily assembled before the adjacent blocks. Depending on the specific situation of the assembly point, the non-vertical wedge block located at the bottom can be selected for assembly first, which is easier to operate.

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

Claims

1. A circular ring for shield tunnel lining, characterized in that, include: Multiple wedge blocks, one or more of which are located in the upper half of the shield tunnel lining ring, wherein each wedge block is provided with two longitudinal wedge surfaces; Multiple adjacent blocks, wherein each adjacent block has a longitudinal wedge surface and a non-longitudinal wedge surface, wherein the longitudinal wedge surface of the adjacent block matches the longitudinal wedge surface of the wedge block; Multiple standard blocks, wherein each standard block is located between the non-longitudinal wedge surfaces of the multiple adjacent blocks, so as to form the shield tunnel lining ring together with the multiple wedge blocks and the multiple adjacent blocks; Multiple wedge-shaped blocks are arranged at intervals on the lining ring to ensure that no matter how the lining ring rotates, at least one wedge-shaped block is distributed in the upper half of the ring and can be used as a capping block.

2. The shield tunnel lining ring according to claim 1, characterized in that, The multiple wedge blocks include a first wedge block (F1), a second wedge block (F2), and a third wedge block (F3). The multiple adjacent blocks include a first pair of adjacent blocks (L1A, L1B), a second pair of adjacent blocks (L2A, L2B), and a third pair of adjacent blocks (L3A, L3B). The longitudinal wedge-shaped surfaces of the first pair of adjacent blocks (L1A, L1B) are matched with the longitudinal wedge-shaped surfaces of the first wedge block (F1), the longitudinal wedge-shaped surfaces of the second pair of adjacent blocks (L2A, L2B) are matched with the longitudinal wedge-shaped surfaces of the second wedge block (F2), and the longitudinal wedge-shaped surfaces of the third pair of adjacent blocks (L3A, L3B) are matched with the longitudinal wedge-shaped surfaces of the third wedge block (F3). The multiple standard blocks include a first standard block (B1) and a second standard block (B2), which together with the first wedge block (F1), the second wedge block (F2), the third wedge block (F3), the first pair of adjacent blocks (L1A, L1B), the second pair of adjacent blocks (L2A, L2B), and the third pair of adjacent blocks (L3A, L3B) form the shield tunnel lining ring; The first wedge block (F1) is located in the upper half of the shield tunnel lining ring and serves as the capping block of the shield tunnel lining ring.

3. The shield tunnel lining ring according to claim 1, characterized in that, The multiple wedge blocks include a first wedge block (F1), a second wedge block (F2), and a third wedge block (F3). The multiple adjacent blocks include a first pair of adjacent blocks (L1A, L1B), a second pair of adjacent blocks (L2A, L2B), and a third pair of adjacent blocks (L3A, L3B). The longitudinal wedge-shaped surfaces of the first pair of adjacent blocks (L1A, L1B) are matched with the longitudinal wedge-shaped surfaces of the first wedge block (F1), the longitudinal wedge-shaped surfaces of the second pair of adjacent blocks (L2A, L2B) are matched with the longitudinal wedge-shaped surfaces of the second wedge block (F2), and the longitudinal wedge-shaped surfaces of the third pair of adjacent blocks (L3A, L3B) are matched with the longitudinal wedge-shaped surfaces of the third wedge block (F3). The multiple standard blocks include a first standard block (B1) and a second standard block (B2), which together with the first wedge block (F1), the second wedge block (F2), the third wedge block (F3), the first pair of adjacent blocks (L1A, L1B), the second pair of adjacent blocks (L2A, L2B), and the third pair of adjacent blocks (L3A, L3B) form the shield tunnel lining ring; The second wedge block (F2) and / or the third wedge block (F3) are located in the upper half of the shield tunnel lining ring and serve as the capping block of the shield tunnel lining ring.

4. The shield tunnel lining ring according to claim 2 or 3, characterized in that, The second adjacent block (L2B) in the second pair of adjacent blocks (L2A, L2B) and the first adjacent block (L3A) in the third pair of adjacent blocks (L3A, L3B) are connected.

5. The shield tunnel lining ring according to claim 2 or 3, characterized in that, It also includes a third standard block (B3), which is located between the second adjacent block (L2B) in the second pair of adjacent blocks (L2A, L2B) and the first adjacent block (L3A) in the third pair of adjacent blocks (L3A, L3B).

6. A method for assembling a shield tunnel lining ring applicable to any one of claims 1 to 5, characterized in that, include: Multiple wedge blocks and multiple adjacent blocks are assembled, wherein each wedge block has two longitudinal wedge surfaces, and each adjacent block has one longitudinal wedge surface and one non-longitudinal wedge surface, wherein the longitudinal wedge surface of the adjacent block matches the longitudinal wedge surface of the wedge block. The multiple adjacent blocks are assembled with multiple standard blocks, wherein each standard block is located between the non-longitudinal wedge surfaces of the multiple adjacent blocks; One or more of the wedge-shaped blocks are assembled into the upper half of the shield tunnel lining ring and used as the capping block of the shield tunnel lining ring.

7. The method according to claim 6, characterized in that, Assemble the first wedge block (F1) with the first pair of adjacent blocks (L1A, L1B), assemble the second wedge block (F2) with the second pair of adjacent blocks (L2A, L2B), and assemble the third wedge block (F3) with the third pair of adjacent blocks (L3A, L3B). The assembled first pair of adjacent blocks (L1A, L1B), the assembled second pair of adjacent blocks (L2A, L2B), and the assembled third pair of adjacent blocks (L3A, L3B) are assembled with the first standard block (B1) and the second standard block (B2) to form the shield tunnel lining ring. The first wedge block (F1) is located in the upper half of the shield tunnel lining ring and serves as the capping block of the shield tunnel lining ring.

8. The method according to claim 6, characterized in that, Assemble the first wedge block (F1) with the first pair of adjacent blocks (L1A, L1B), assemble the second wedge block (F2) with the second pair of adjacent blocks (L2A, L2B), and assemble the third wedge block (F3) with the third pair of adjacent blocks (L3A, L3B). The assembled first pair of adjacent blocks (L1A, L1B), the assembled second pair of adjacent blocks (L2A, L2B), and the assembled third pair of adjacent blocks (L3A, L3B) are assembled with the first standard block (B1) and the second standard block (B2) to form the shield tunnel lining ring. The second wedge block (F2) and / or the third wedge block (F3) are located in the upper half of the shield tunnel lining ring and serve as the capping block of the shield tunnel lining ring.

9. The method according to claim 7 or 8, characterized in that, Assembling the assembled first pair of adjacent blocks (L1A, L1B), the assembled second pair of adjacent blocks (L2A, L2B), and the assembled third pair of adjacent blocks (L3A, L3B) with the first standard block (B1) and the second standard block (B2) includes connecting the second adjacent block (L2B) in the second pair of adjacent blocks (L2A, L2B) and the first adjacent block (L3A) in the third pair of adjacent blocks (L3A, L3B).

10. The method according to claim 7 or 8, characterized in that, Assembling the assembled first pair of adjacent blocks (L1A, L1B), the assembled second pair of adjacent blocks (L2A, L2B), and the assembled third pair of adjacent blocks (L3A, L3B) with the first standard block (B1) and the second standard block (B2) includes assembling the third standard block (B3) between the second adjacent block (L2B) in the second pair of adjacent blocks (L2A, L2B) and the first adjacent block (L3A) in the third pair of adjacent blocks (L3A, L3B).

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