Segment modules and repair methods for shield tunnel repair

Abstract

This invention discloses a segment module and repair method for shield tunnel repair, wherein the shield tunnel includes a track bed. The segment module includes an annular template and connecting parts. The annular template includes: a crown block; a first arch waist block and a second arch waist block, respectively disposed at opposite ends of the crown block along its length; a first connecting block disposed at the end of the first arch waist block away from the crown block; and a second connecting block disposed at the end of the second arch waist block away from the crown block. The first end of the track bed along its width is connected to the end of the first connecting block away from the first arch waist block, and the second end of the track bed along its width is connected to the end of the second connecting block away from the second arch waist block. The segment module, through its modular design, improves the flexibility of shield tunnel repair.

Description

Technical Field

[0001] This invention relates to the field of underground structure reinforcement technology for shield tunnels, and in particular to a segment module and repair method for shield tunnel repair. Background Technology

[0002] Shield tunnels play an irreplaceable strategic role in rail transit and enhancing urban disaster resilience. However, with increasing service life and more complex operating environments, the structural safety of shield tunnels faces severe challenges. Statistics show that the number of subway tunnel repair projects nationwide is increasing by an average of 24% annually, making operation and maintenance increasingly challenging. Problems such as structural leakage, segment cracking, and material deterioration are becoming increasingly prominent. During their long-term service, shield tunnels endure complex conditions including ground pressure, traffic loads, and disturbances from surrounding construction, leading to cumulative structural damage. Therefore, shield tunnel segments frequently experience excessive deformation requiring repair.

[0003] Existing methods for repairing tunnel segments are relatively conventional, using circular steel plates anchored into the tunnel structure, essentially adding a steel lining to the inner side of the existing shield tunnel. This reinforcement method results in poor durability of the reinforced photosensitive film, making it susceptible to corrosion in humid environments; the fixed shape of the reinforcement also limits flexibility. While cast-in-place repair can improve these issues, temporary formwork supports excessively occupy tunnel space, disrupting normal operations for extended periods and increasing overall maintenance costs. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] In view of this, the present invention provides a segment module and a repair method for shield tunnel repair, wherein the segment module improves the flexibility of shield tunnel repair through modular design.

[0006] Specifically, the following technical solutions are included: An embodiment of the first aspect of the present invention provides a segment module for shield tunnel repair, the shield tunnel including a track bed, the segment module including an annular template and a connecting portion, the annular template including: vaulted block; The first arch waist block and the second arch waist block are respectively disposed at both ends of the arch top block in the length direction; The first connecting block is disposed at the end of the first arch waist block away from the arch top block; The second connecting block is disposed at the end of the second arch waist block away from the arch top block; Wherein, the first end of the track bed in the width direction is connected to the end of the first connecting block away from the first arch block, and the second end of the track bed in the width direction is connected to the end of the second connecting block away from the second arch block.

[0007] Optionally, the connecting portion includes: A first connector is disposed between the first connecting block and a first end in the width direction of the track bed, and the first connector is also disposed between the second connecting block and a second end in the width direction of the track bed.

[0008] Optionally, the first connector is a mechanical anchor bolt.

[0009] Optionally, the connecting portion further includes: The second connector is disposed at both ends of the annular template in the width direction, and the annular template is connected to the inner wall of the tunnel segment through the second connector.

[0010] Optionally, the second connector includes an anchor plate and a tie rod, wherein the anchor plate is fixedly connected to the annular template, one end of the tie rod is fixedly connected to the anchor plate, and the other end of the tie rod is fixedly connected to the inner wall of the tunnel segment.

[0011] Optionally, the arched top block, the first arch waist block, the second arch waist block, the first connecting block, and the second connecting block have the same structure, and the arched top block includes: The panel is rectangular. Ribs are disposed within the panel. The ribs include transverse ribs and longitudinal ribs. A plurality of transverse ribs are arranged parallel to each other along the length direction of the panel, and a plurality of longitudinal ribs are arranged parallel to each other along the width direction of the panel.

[0012] Optionally, the arch block forms a first sector area with the center of the shield tunnel, the included angle of the first sector area is 120°, the first arch waist block and the second arch waist block respectively form two second sector areas with the center of the shield tunnel, the included angle of the second sector areas is 50°, and the first connecting block and the second connecting block respectively form two third sector areas with the center of the shield tunnel, the included angle of the third sector areas is 44°; The arch block has insertion parts at both ends along its length, the first arch waist block has a self-locking part at one end facing the arch block, the second arch waist block has a self-locking part at one end facing the arch block, the first arch waist block and the second arch waist block have insertion parts at one end away from the arch block, the first connecting block has a self-locking part at one end facing the first arch waist block, and the second connecting block has a self-locking part at one end facing the second arch waist block. The insertion part includes a connecting post, and the connecting post has a stepped hole. The stepped hole includes a first hole and a second hole, and the diameter of the first hole is smaller than the diameter of the second hole. The self-locking part includes a connecting rod, and a spring piece is provided on one end of the connecting rod facing the connecting post. A plurality of spring pieces are inclinedly arranged with the connecting rod. The connecting rod and the spring pieces are inserted into the stepped hole, and the spring pieces are engaged with the stepped hole.

[0013] Optionally, the annular template is 25mm to 30mm away from the inner wall of the tunnel segment; The annular template is made of basalt fiber composite material.

[0014] A second aspect of the present invention provides a repair method for shield tunnel repair, utilizing the segment modules described in any of the preceding claims, the repair method comprising the following steps: First, connect the first connecting block and the second connecting block to the track bed; Connect the first arch waist block to the first connecting block, and connect the second arch waist block to the second connecting block to form a semi-ring template; The two ends of the arch block along its length are connected to the first arch waist block and the second arch waist block, respectively, to form a ring template.

[0015] Optionally, the repair method further includes: The annular template is connected to the inner wall of the shield tunnel segment by a connector, and the annular template and the inner wall of the shield tunnel segment form a casting space. Concrete is poured into the pouring space to fix the inner wall of the tunnel segment to the annular template.

[0016] The present invention provides a segment module and repair method for shield tunnel repair. The segment module includes an annular template and connecting parts. The annular template includes an arch top block, a first arch waist block, a second arch waist block, a first connecting block, and a second connecting block. The first arch waist block and the second arch waist block are respectively disposed at both ends of the arch top block along its length. The first connecting block is disposed at the end of the first arch waist block away from the arch top block, and the second connecting block is disposed at the end of the second arch waist block away from the arch top block. The ends of the first connecting block and the second connecting block away from the arch top block are fixedly connected to both ends of the track bed in the width direction to form an annular template. The annular template is modular in design, making the connection more flexible. Moreover, the material of the annular template is basalt fiber composite material, which is not easily corroded and can improve the durability of the annular template.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a segment module according to an embodiment of the present invention; Figure 2 This is a top view schematic diagram according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an arch block according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the insertion part and the self-locking part according to an embodiment of the present invention.

[0020] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 Segment Module, 110 Annular Template, 111 Arch Block, 1111 Panel, 1112 Horizontal Rib, 1113 Longitudinal Rib, 112 First Arch Waist Block, 113 Second Arch Waist Block, 114 First Connecting Block, 115 Second Connecting Block, 116 First Sector Area, 117 Second Sector Area, 118 Third Sector Area, 121 First Connector, 122 Second Connector, 123 Self-Locking Module, 1231 Step Hole, 1232 First Hole, 1233 Second Hole, 1234 Connecting Rod, 1235 Spring Sheet, 200 Shield Tunnel, 210 Track Bed, 220 Segment Inner Wall. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Before providing a further detailed description of the embodiments of the present invention, the directional terms used in the embodiments of the present invention, such as "upper part", "lower part" and "side part", are not intended to limit the scope of protection of the present invention.

[0023] To make the technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 4 As shown, one embodiment of the present invention provides a segment module for shield tunnel repair. The shield tunnel 200 includes a track bed 210, and the segment module 100 includes an annular template 110 and a connecting portion. The annular template 110 includes: Dome block 111; The first arch waist block 112 and the second arch waist block 113 are respectively disposed at both ends of the arch top block 111 in the length direction; The first connecting block 114 is located at the end of the first arch waist block 112 that is away from the arch top block 111; The second connecting block 115 is located at the end of the second arch waist block 113 that is away from the arch top block 111; The first end of the track bed 210 in the width direction is connected to the end of the first connecting block 114 away from the first arch block 112, and the second end of the track bed 210 in the width direction is connected to the end of the second connecting block 115 away from the second arch block 113.

[0025] The segment module 100 includes an annular template 110 and connecting parts. The annular template 110 includes an arched top block 111, a first arched waist block 112, a second arched waist block 113, a first connecting block 114, and a second connecting block 115. The first arched waist block 112 and the second arched waist block 113 are respectively located at both ends of the arched top block 111 along its length. The first connecting block 114 is located at the end of the first arched waist block 112 away from the arched top block 111. The second connecting block 115 is located at the end of the second arched waist block 113 away from the arched top block 111. The ends of the first connecting block 114 and the second connecting block 115 away from the arched top block 111 are fixedly connected to both ends of the track bed 210 along its width to form an annular template 110. The annular template 110 is modular in design, making the connection more flexible. Furthermore, the material of the annular template 110 is basalt fiber composite material, which is not easily corroded and can improve the durability of the annular template 110.

[0026] Specifically, such as Figure 1 and Figure 2As shown, existing repair methods involve embedding ring-shaped steel plates into the inner wall of tunnel segments using anchor bolts. This requires anchoring existing segments, leading to segment damage and impacting the stability and safety of the shield tunnel, accelerating steel corrosion, and causing water leakage. This application addresses this by using a ring-shaped formwork 110, which avoids damaging existing segments and improves the safety and stability of the subsequent shield tunnel 200. Existing pouring methods require supports, which excessively occupy tunnel space. This application directly supports the ring-shaped formwork 110 using the track bed 210, eliminating the need for additional supports, not affecting the passage and operating radius of large construction equipment, improving construction efficiency and the feasibility of the working space, and also enhancing the safety of personnel within the shield tunnel 200. The modular design of the ring-shaped formwork 110 facilitates its installation and connection, improving the convenience and efficiency of its installation within the shield tunnel 200.

[0027] In one feasible implementation, the connecting portion includes: The first connector 121 is disposed between the first connecting block 114 and the first end of the track bed 210 in the width direction. The first connector 121 is also disposed between the second connecting block 115 and the second end of the track bed 210 in the width direction.

[0028] The first connecting block 114 is fixedly connected to the track bed 210 by the first connecting piece 121, and the second connecting block 115 is connected to the track bed 210. This allows for the direct installation of the ring template 110, which facilitates the subsequent pouring of ultra-high performance concrete (UHPC) without the need for support brackets, thus ensuring the working efficiency and safety within the shield tunnel 200.

[0029] Specifically, the first connecting member 121 is a mechanical anchor bolt, meaning that the two ends of the track bed 210 are fixedly connected to the first connecting block 114 and the second connecting block 115 by mechanical anchor bolts. Mechanical anchor bolts have high load-bearing capacity and stability, are easy to construct, and can be subjected to stress immediately, effectively shortening the construction period; at the same time, mechanical anchor bolts also have good environmental adaptability, are resistant to moisture and corrosion, and are suitable for tunnel environments.

[0030] In one feasible implementation, the connecting portion further includes: The second connector 122 is disposed at both ends of the annular template 110 in the width direction. The annular template 110 is connected to the inner wall of the tunnel segment of the shield tunnel 200 through the second connector 122.

[0031] The arched top block 111, the first arch waist block 112, the second arch waist block 113, the first connecting block 114, and the second connecting block 115 form an annular template 110. The annular template 110 is connected to the inner wall 220 of the tunnel segment through the second connecting member 122. The second connecting member 122 usually appears in pairs, with one pair of second connecting members 122 respectively set on both sides of the width direction of the annular template 110. In order to ensure the stability of the connection and the safety of subsequent UHPC pouring, multiple pairs of second connecting members 122 can be set. At least one pair of second connecting members 122 is set on the arched top block 111, the first arch waist block 112, the second arch waist block 113, the first connecting block 114, and the second connecting block 115. The second connecting member 122 further supports the annular template 110 through the inner wall 220 of the tunnel segment. Meanwhile, a casting space is formed between the inner wall 220 of the segment and the annular template 110, which facilitates the subsequent casting of UHPC, provides support for the casting of UHPC, and improves the reliability and safety of the shield tunnel 200 repair.

[0032] Specifically, the second connector 122 includes an anchor plate and a tie rod. The anchor plate is fixedly connected to the annular template 110, one end of the tie rod is fixedly connected to the anchor plate, and the other end of the tie rod is fixedly connected to the inner wall 220 of the tunnel segment of the shield tunnel 200.

[0033] The anchor plate is made of the same material as the annular formwork 110, namely basalt fiber composite material. Basalt fiber composite material is lightweight and high-strength, and also has high temperature resistance and corrosion resistance, which can effectively extend the service life of the annular formwork 110. It is also suitable for the humid environment of underground tunnels, preventing corrosion of the annular formwork 110. It is understood that the connection between the anchor plate and the tie rod is a relatively mature existing technology, and will not be described in detail here.

[0034] In one feasible implementation, such as Figure 3 As shown, the arched block 111, the first arched waist block 112, the second arched waist block 113, the first connecting block 114, and the second connecting block 115 have the same structure. The arched block 111 includes: Panel 1111 is rectangular; Ribs, disposed within panel 1111, include transverse ribs 1112 and longitudinal ribs 1113. Multiple transverse ribs 1112 are arranged parallel to each other along the length direction of panel 1111, and multiple longitudinal ribs 1113 are arranged parallel to each other along the width direction of panel 1111.

[0035] The thickness of the panel 1111 is typically 8mm, and the thickness of the rib plate is 8mm to 10mm. The rib plate is usually positioned facing the inner wall 220 of the tunnel segment of the shield tunnel 200. The arrangement of the panel 1111 and the rib plate can improve the strength of the annular template 110, which helps to pour reinforcing high-strength concrete between the panel 1111 and the inner wall 220 of the tunnel segment of the shield tunnel 200. The panel 1111 can support the reinforcing high-strength concrete and realize the repair of the tunnel segment inside the shield tunnel 200.

[0036] In one feasible implementation, the arch block 111 and the center of the shield tunnel 200 form a first sector area 116 with an included angle of 120°. The first arch waist block 112 and the second arch waist block 113 respectively form two second sector areas 117 with the center of the shield tunnel 200 with an included angle of 50°. The first connecting block 114 and the second connecting block 115 respectively form two third sector areas 118 with the center of the shield tunnel 200 with an included angle of 44°.

[0037] The annular formwork 110 is installed from bottom to top, meaning the first connecting block 114 and the second connecting block 115 are installed first, followed by the first arch waist block 112 and the second arch waist block 113, and finally the dome block 111. The dome block 111 has the largest angle, resulting in higher overall strength and fewer obstacles above it. The angles of the arch waist blocks and connecting blocks can be set according to the actual location of pipelines and obstacles, allowing their installation to avoid obstacles and pipelines. This ensures the overall support strength of the annular formwork 110 while also improving its installation efficiency.

[0038] The arch block 111 has insertion parts at both ends along its length, the first arch waist block 112 has a self-locking part at one end facing the arch block 111, the second arch waist block 113 has a self-locking part at one end facing the arch block 111, the first arch waist block 112 and the second arch waist block 113 have insertion parts at one end away from the arch block 111, the first connecting block 114 has a self-locking part at one end facing the first arch waist block 112, and the second connecting block 115 has a self-locking part at one end facing the second arch waist block 113.

[0039] Among them, such as Figure 4As shown, the insertion part is directly disposed at the end of the panel. The insertion part includes a stepped hole 1231, which includes a first hole 1232 and a second hole 1233. The diameter of the first hole 1232 is smaller than the diameter of the second hole 1233. The self-locking part includes a connecting rod 1234. A spring piece 1235 is provided on one end of the connecting rod 1234 facing the connecting post 1231. Multiple spring pieces 1235 are inclinedly disposed with the connecting rod 1234. The connecting rod 1234 and the spring pieces 1235 are inserted into the stepped hole 1231, and the spring pieces 1235 are engaged with the stepped hole 1231. The connecting rod 1234 of the self-locking part is inserted into the stepped hole 1231 of the connecting column 1231. Under the rigid pressure of the first hole 1232, multiple spring pieces 1235 move closer to the connecting rod 1234. When the connecting rod 1234 is fully inserted into the second hole 1233 of the stepped hole 1231, since the diameter of the first hole 1231 is smaller than the diameter of the second hole 1232, the spring pieces 1235 spring away from the connecting column 1234, so that multiple spring pieces 1235 are engaged on the step formed by the first hole 1232 and the second hole 1233, realizing the self-locking of two adjacent parts. It can be understood that the stepped hole of the insertion part is usually directly set at the end of the panel 1111, the self-locking part protrudes from the panel 1111, and the length of the self-locking part matches the length of the stepped hole. In this way, two adjacent modules of the annular template 110 will fit together without gaps when installed, improving the reliability of subsequent pouring of reinforcing high-strength concrete.

[0040] It should be noted that adjacent modules of the annular formwork 110 can be connected via two insertion parts and two self-locking parts, which improves the support strength of the annular formwork 110 and the stability and reliability of the connections between the modules of the annular formwork 110. The connection via the insertion parts and self-locking parts makes it suitable for the vibration environment of the shield tunnel 200. In other words, the modules in the annular formwork 110 are directly connected, and even under vibration, they will not loosen, thus improving the support strength and the reliability and stability of the annular formwork 110.

[0041] In this embodiment, the width of the annular template 110 is typically 1100mm, and the thickness is 8mm, meaning the thickness of the panel 1111 is 8mm, and the thickness of the ribs is 8mm to 10mm. The length of each module in the annular template 110 is selected based on the annular circumference of the shield tunnel 200, without further limitation. Choosing this thickness and width for the annular template 110 ensures that its support strength meets the requirements for supporting the reinforcing high-strength concrete, while also minimizing its impact on the space occupied by the shield tunnel 200, thus ensuring the feasibility of the working space within the shield tunnel 200.

[0042] In one feasible implementation, the annular template 110 is 25mm to 30mm away from the inner wall 220 of the tunnel segment 200. The material of the ring template 110 is basalt fiber composite material.

[0043] The 25mm to 30mm distance between the annular template 110 and the inner wall 220 of the shield tunnel 200 segment means that the thickness of the reinforced high-strength concrete poured must reach 25mm to 30mm. That is, the distance between the panel 1111 facing the inner wall 220 of the shield tunnel 200 segment and the inner wall 220 of the shield tunnel 200 segment is 25mm to 30mm. The ribs are integrated into the high-strength concrete, which improves the stability and reliability of the connection between the high-strength concrete and the panel 1111.

[0044] It should be noted that basalt fiber composite material has good corrosion resistance. Due to the high humidity in the shield tunnel 200, the use of basalt fiber composite material makes the annular template 110 less prone to rusting and has an environmentally friendly effect, which can improve the safety of the working environment inside the shield tunnel 200.

[0045] This application utilizes basalt fiber composite material to fabricate annular formwork 110, giving it advantages of high strength and light weight. This allows for overall support strength through the first connector 121, the second connector 121, and the self-locking modules 123 within the annular formwork 110, without damaging the inner wall 220 of the tunnel lining. Simultaneously, the basalt fiber composite material annular formwork 110 can withstand the forces exerted during the vibration and pouring of UHPC high-strength concrete, improving the safety and stability of subsequent UHPC pouring. Since there are no supports occupying the space of the shield tunnel 200, there is no need to remove the supports after UHPC pouring, improving work efficiency within the shield tunnel 200. Furthermore, the annular formwork 110 and the poured UHPC form an integral reinforced lining, enhancing the safety of the repaired shield tunnel 200.

[0046] One embodiment of the present invention provides a repair method for shield tunnel repair, utilizing the aforementioned segment module 100. The repair method includes the following steps: First, connect the first connecting block and the second connecting block to the track bed; Connect the first arch waist block to the first connecting block, and connect the second arch waist block to the second connecting block to form a semi-ring template; The two ends of the arch block along its length are connected to the first and second arch waist blocks respectively to form a ring template.

[0047] The annular template 110 is divided into modules, namely, an arch top block 111, a first arch waist block 112, a second arch waist block 113, a first connecting block 114, and a second connecting block 115. This facilitates transportation and construction within the shield tunnel 200, improves construction efficiency and flexibility, and does not affect the normal construction of other work inside the shield tunnel 200, thus improving construction efficiency and safety.

[0048] It should be noted that a ring template 110 can be set up according to the area of ​​the inner wall 220 of the shield tunnel 200 that needs to be repaired.

[0049] Furthermore, existing repair methods use annular steel plates anchored into the inner wall of the tunnel segments. This requires anchoring existing segments, leading to segment damage and affecting the stability and safety of the tunnel boring machine (TBM), accelerating steel corrosion, and causing water leakage. This application uses an additional annular formwork, which avoids damaging existing segments and improves the safety and stability of the subsequent tunnel. Existing pouring methods require supports, which excessively occupy tunnel space. This application uses the track bed 210 to directly support the annular formwork 110, eliminating the need for additional supports, not affecting the passage and operating radius of large construction equipment, improving construction efficiency and the feasibility of the working space, and also enhancing the safety of personnel inside the TBM tunnel 200. The modular design of the annular formwork 110 facilitates its installation and connection, improving the convenience and efficiency of its installation within the TBM tunnel 200.

[0050] In one feasible implementation, the repair method further includes: The annular template is connected to the inner wall of the shield tunnel segment by connectors, and the annular template and the inner wall of the shield tunnel segment form a casting space. High-strength concrete is poured into the casting space to fix the inner wall of the shield tunnel segments to the annular formwork.

[0051] The first connecting block 114 is fixedly connected to the track bed 210 by the first connecting piece 121, and the second connecting block 122 is connected to the track bed 210. This allows for the direct installation of the ring template 110, which facilitates the subsequent pouring of ultra-high performance concrete (UHPC) without the need for support brackets, thus ensuring the working efficiency and safety within the shield tunnel 200.

[0052] Furthermore, each module of the annular template 110 is connected to the inner wall 220 of the tunnel segment via second connectors 122. Typically, the second connectors 122 appear in pairs, with one pair positioned on each side of the width of the annular template 110. To ensure the stability of the connection and the safety of subsequent UHPC pouring, multiple pairs of second connectors 122 can be provided. At least one pair of second connectors 122 is provided on each of the arch block 111, the first arch waist block 112, the second arch waist block 113, the first connecting block 114, and the second connecting block 115. The second connectors 122 further support the annular template 110 from the inner wall 220 of the tunnel segment. Simultaneously, a pouring space is formed between the inner wall 220 of the tunnel segment and the annular template 110, facilitating subsequent UHPC pouring, providing support for the UHPC pouring, and improving the reliability and safety of the shield tunnel 200 repair.

[0053] The repair method of this application forms a template structure that combines permanent (cast UHPC) and temporary (ring template 110) reinforcement of the shield tunnel 200, which improves the existing method of relying solely on steel pipe segments for reinforcement; at the same time, it forms a superimposed process, which can reduce the dismantling process, simplify the repair process steps, and improve the repair efficiency and convenience.

[0054] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "a plurality" refers to two or more unless otherwise expressly defined.

[0055] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0056] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A segment module for shield tunnel repair, the shield tunnel comprising a track bed, characterized in that, The segment module includes an annular template and a connecting part. The annular template includes: vaulted blocks; The first arch waist block and the second arch waist block are respectively disposed at both ends of the arch top block in the length direction; The first connecting block is disposed at the end of the first arch waist block away from the arch top block; The second connecting block is disposed at the end of the second arch waist block away from the arch top block; Wherein, the first end of the track bed in the width direction is connected to the end of the first connecting block away from the first arch block, and the second end of the track bed in the width direction is connected to the end of the second connecting block away from the second arch block.

2. The segment module for shield tunnel repair according to claim 1, characterized in that, The connecting part includes: A first connector is disposed between the first connecting block and a first end in the width direction of the track bed, and the first connector is also disposed between the second connecting block and a second end in the width direction of the track bed.

3. The segment module for shield tunnel repair according to claim 2, characterized in that, The first connecting component is a mechanical anchor bolt.

4. The segment module for shield tunnel repair according to claim 1, characterized in that, The connecting part further includes: The second connector is disposed at both ends of the annular template in the width direction, and the annular template is connected to the inner wall of the tunnel segment through the second connector.

5. The segment module for shield tunnel repair according to claim 4, characterized in that, The second connecting component includes an anchor plate and a tie rod. The anchor plate is fixedly connected to the annular template, one end of the tie rod is fixedly connected to the anchor plate, and the other end of the tie rod is fixedly connected to the inner wall of the tunnel segment.

6. The segment module for shield tunnel repair according to claim 1, characterized in that, The dome block, the first arch waist block, the second arch waist block, the first connecting block, and the second connecting block have the same structure. The dome block includes: The panel is rectangular. Ribs are disposed on the panel. The ribs include transverse ribs and longitudinal ribs. A plurality of transverse ribs are arranged parallel to each other along the length direction of the panel, and a plurality of longitudinal ribs are arranged parallel to each other along the width direction of the panel.

7. The segment module for shield tunnel repair according to claim 1, characterized in that, The arch block forms a first fan-shaped area with the center of the shield tunnel, and the included angle of the first fan-shaped area is 120°. The first arch waist block and the second arch waist block respectively form two second fan-shaped areas with the center of the shield tunnel, and the included angle of the second fan-shaped areas is 50°. The first connecting block and the second connecting block respectively form two third fan-shaped areas with the center of the shield tunnel, and the included angle of the third fan-shaped areas is 44°. The arch block has insertion parts at both ends along its length, the first arch waist block has a self-locking part at one end facing the arch block, the second arch waist block has a self-locking part at one end facing the arch block, the first arch waist block and the second arch waist block have insertion parts at one end away from the arch block, the first connecting block has a self-locking part at one end facing the first arch waist block, and the second connecting block has a self-locking part at one end facing the second arch waist block. The insertion part includes a connecting post, and the connecting post has a stepped hole. The stepped hole includes a first hole and a second hole, and the diameter of the first hole is smaller than the diameter of the second hole. The self-locking part includes a connecting rod, and a spring piece is provided on one end of the connecting rod facing the connecting post. A plurality of spring pieces are inclinedly arranged with the connecting rod. The connecting rod and the spring pieces are inserted into the stepped hole, and the spring pieces are engaged with the stepped hole.

8. The segment module for shield tunnel repair according to any one of claims 1 to 7, characterized in that, The annular template is 25mm to 30mm away from the inner wall of the shield tunnel segment; The annular template is made of basalt fiber composite material.

9. A repair method for shield tunnel repair, characterized in that, Using the segment module according to any one of claims 1 to 8, the repair method includes the following steps: First, connect the first connecting block and the second connecting block to the track bed; Connect the first arch waist block to the first connecting block, and connect the second arch waist block to the second connecting block to form a semi-ring template; The two ends of the arch block along its length are connected to the first arch waist block and the second arch waist block, respectively, to form a ring template.

10. The repair method for shield tunnel repair according to claim 9, characterized in that, The repair method also includes: The annular template is connected to the inner wall of the shield tunnel segment by a connector, and the annular template and the inner wall of the shield tunnel segment form a casting space. Concrete is poured into the pouring space to fix the inner wall of the tunnel segment to the annular template.

Images