Subway shield segment with adjustable thickness

Abstract

The utility model discloses a subway shield segment with adjustable thickness, which comprises a shield segment main body, a thickness adjusting segment, a fixing bolt and a nut, and the shield segment main body and the thickness adjusting segment are assembled and matched. According to the shield segment, the shield segment body and the thickness adjusting segment are arranged, when the thickness of the shield segment needs to be increased, the thickness adjusting segment is assembled to adjust the thickness, after assembling, the uppermost thickness adjusting segment and the shield segment body are assembled, assembling is convenient and firm, the overall thickness of the shield segment can be assembled and adjusted according to requirements, and the shield segment is suitable for diversified construction environments; through the arranged fixing bolts and nuts, when the whole shield segment is connected and assembled, the fixing bolts sequentially penetrate through the first inserting holes, the second inserting holes, the third inserting holes and the fourth inserting holes, assembling can be completed by conducting threaded fixing through the nuts, the structure is compact and firm, and the assembling efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine (TBM) segment technology, and in particular to a subway TBM segment with adjustable thickness. Background Technology

[0002] Shield tunnel segments are the main assembly components in shield tunneling construction. They are the innermost barrier of the tunnel, bearing the responsibility of resisting soil pressure, groundwater pressure, and some special loads. Shield tunnel segments are the permanent lining structure of shield tunnels. The quality of shield tunnel segments is directly related to the overall quality and safety of the tunnel, and affects the tunnel's waterproof performance and durability. However, the existing subway shield tunnel segments still have the following shortcomings.

[0003] Some shield tunnel segments have a single form and cannot be reinforced or thickened according to different usage environments, resulting in low adaptability of the shield tunnel segments. Furthermore, since shield tunnel segments need to be connected for use, the existing connection methods cannot achieve a secure connection, making operation inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a subway shield tunnel segment with adjustable thickness, which can be assembled and adjusted according to needs, is suitable for diverse construction environments, and has a compact and sturdy structure with high assembly efficiency.

[0005] To achieve the above objectives, a subway tunnel segment with adjustable thickness is provided, comprising a tunnel segment body, a thickness adjustment segment, fixing bolts, and nuts, wherein the tunnel segment body and the thickness adjustment segment are assembled together.

[0006] The shield tunnel segment body has a connecting protrusion on the left side and a connecting slot on the right side. The shield tunnel segment body has several assembly slots equidistantly spaced along the center on the inner arc surface. The upper and lower inner walls of the assembly slots are provided with insertion holes. The connecting protrusion has insertion holes.

[0007] The thickness adjustment tube has a connecting protrusion 2 on the left side and a connecting slot 2 on the right side. The inner arc surface of the thickness adjustment tube has several assembly slots 2 equidistantly spaced along the center. The upper and lower inner walls of the assembly slots 2 have through holes 3. The outer arc surface of the thickness adjustment tube has several assembly protrusions equidistantly spaced along the center. The connecting protrusions 2 have through holes 4.

[0008] According to the aforementioned adjustable thickness subway tunnel segment, the shape of the connecting protrusion 1 is adapted to the shape of the connecting slot 1, and the connecting protrusion 1 and the connecting slot 1 are engaged in a plug-in / plug-out fit.

[0009] According to the aforementioned adjustable thickness subway tunnel segment, the second connecting protrusion and the second connecting slot are adapted in shape, and the second connecting protrusion and the second connecting slot are engaged in a plug-in / plug-out fit.

[0010] According to the aforementioned adjustable thickness subway tunnel segment, the shapes of assembly slot one and assembly slot two are adapted to the shape and size of the assembly protrusion.

[0011] According to the aforementioned adjustable thickness subway tunnel segment, the positions of the insertion hole one, insertion hole two, insertion hole three, and insertion hole four correspond to each other.

[0012] According to the aforementioned adjustable thickness subway tunnel segment, the bottom sidewall of the fixing bolt sequentially passes through insertion hole one, insertion hole two, insertion hole three and insertion hole four and is threadedly connected to the inner wall of the nut.

[0013] This utility model has the following beneficial effects:

[0014] 1. Compared with existing technologies, by setting up the shield tunnel segment body and thickness adjustment segments, when it is necessary to increase the thickness of the shield tunnel segment, the thickness adjustment segments are assembled to adjust the thickness. After assembly, the uppermost thickness adjustment segment is assembled with the shield tunnel segment body. The assembly is convenient and firm, and the overall thickness of the shield tunnel segment can be adjusted as needed, making it suitable for diverse construction environments.

[0015] 2. Compared with existing technologies, when connecting and assembling the shield tunnel segments by setting fixed bolts and nuts, the fixed bolts pass through the first, second, third and fourth insertion holes in sequence, and the assembly is completed by threading the nuts. The structure is compact and strong, and the assembly efficiency is high. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a perspective view of a subway shield tunnel segment with adjustable thickness according to the present invention.

[0018] Figure 2 This utility model relates to a structure for subway shield tunnel segments with adjustable thickness. Figure 1 ;

[0019] Figure 3 This utility model relates to a structure for subway shield tunnel segments with adjustable thickness. Figure 2 ;

[0020] Figure 4 This is an assembly diagram of a subway shield tunnel segment with adjustable thickness according to the present invention.

[0021] Legend:

[0022] 1. Main body of shield tunnel segment; 2. Thickness adjustment segment; 3. Fixing bolt; 4. Nut; 101. Connecting protrusion one; 102. Connecting slot one; 103. Assembly slot one; 104. Insertion hole one; 105. Insertion hole two; 201. Connecting protrusion two; 202. Connecting slot two; 203. Assembly slot two; 204. Insertion hole three; 205. Assembly protrusion; 206. Insertion hole four. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-4 This utility model provides a subway shield tunnel segment with adjustable thickness, which includes a shield tunnel segment body 1, a thickness adjustment segment 2, a fixing bolt 3, and a nut 4. The shield tunnel segment body 1 and the thickness adjustment segment 2 are assembled together.

[0025] The shield tunnel segment body 1 has a connecting protrusion 101 on the left side and a connecting slot 102 on the right side. The shape of the connecting protrusion 101 and the connecting slot 102 are adapted to each other, and the connecting protrusion 101 and the connecting slot 102 are plugged in and out. The inner arc surface of the shield tunnel segment body 1 has several assembly slots 103 equidistantly opened along the center. The upper and lower inner walls of the assembly slots 103 are provided with insertion holes 104. The connecting protrusion 101 is provided with insertion holes 105.

[0026] The thickness adjusting tube 2 has a connecting protrusion 201 on its left side and a connecting slot 202 on its right side. The shapes of the connecting protrusion 201 and the connecting slot 202 are adapted to each other, and the connecting protrusion 201 and the connecting slot 202 are in a plug-in and plug-out engagement. The inner arc surface of the thickness adjusting tube 2 has several assembly slots 203 equidistantly spaced along the center. The upper and lower inner walls of the assembly slots 203 have through holes 204. The outer arc surface of the thickness adjusting tube 2 has several through holes 204. The mounting has several mounting protrusions 205. The shapes of mounting slot 1 103 and mounting slot 2 203 are adapted to the shape and size of the mounting protrusions 205. The connecting protrusion 2 201 has a through hole 4 206. The positions of through hole 1 104, through hole 2 105, through hole 3 204 and through hole 4 206 are corresponding. The bottom side wall of the fixing bolt 3 passes through ... By using the shield tunnel segment body 1 and thickness adjustment segments 2, when the thickness of the shield tunnel segment needs to be increased, the required thickness adjustment segments 2 are assembled. During assembly, the mounting protrusion 205 of the lower thickness adjustment segment 2 is inserted into the mounting slot 203 of the upper thickness adjustment segment 2. After thickness adjustment, the mounting protrusion 205 of the uppermost thickness adjustment segment 2 is inserted into the mounting slot 103 of the shield tunnel segment body 1. The assembly is convenient and secure, and the overall thickness of the shield tunnel segment can be adjusted as needed. It is suitable for diverse construction environments. When assembling the shield tunnel segments by means of the fixed bolts 3 and nuts 4, the connecting protrusions 101 and 201 of the shield tunnel segment on one side are inserted into the connecting slots 102 and 202 respectively. At this time, the insertion holes 104, 205, 304 and 406 are aligned. The fixed bolts 3 are passed through in sequence, and the assembly is completed by threading with the nuts 4. The structure is compact and strong, and the assembly efficiency is high.

[0027] Working principle: When it is necessary to increase the thickness of the shield tunnel segment, the thickness adjustment segment 2 of the required thickness is assembled. During assembly, the assembly protrusion 205 of the lower thickness adjustment segment 2 is inserted into the assembly slot 203 of the upper thickness adjustment segment 2. After the thickness is adjusted, the assembly protrusion 205 of the uppermost thickness adjustment segment 2 is inserted into the assembly slot 103 of the shield tunnel segment body 1. When connecting and assembling the shield tunnel segments as a whole, the connecting protrusion 101 and connecting protrusion 201 of the shield tunnel segment on one side are inserted into the connecting slot 102 and connecting slot 202 respectively. At this time, the insertion holes 104, 205, 304 and 406 are aligned. The fixing bolts 3 are passed through in sequence, and the assembly is completed by threading with nuts 4.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A subway tunnel segment with adjustable thickness, characterized in that, It includes a shield tunnel segment body (1), a thickness adjustment segment (2), fixing bolts (3), and nuts (4), wherein the shield tunnel segment body (1) and the thickness adjustment segment (2) are assembled and fitted together; The shield tunnel segment body (1) has a connecting protrusion (101) on the left side and a connecting slot (102) on the right side. The shield tunnel segment body (1) has a plurality of assembly slots (103) equidistantly spaced along the center of the inner arc surface. The upper and lower inner walls of the assembly slots (103) are provided with insertion holes (104). The connecting protrusion (101) is provided with insertion holes (105). The thickness adjustment tube (2) has a connecting protrusion 2 (201) on the left side and a connecting slot 2 (202) on the right side. The thickness adjustment tube (2) has a plurality of assembly slots 2 (203) equidistantly arranged along the center on the inner arc surface. The upper and lower inner walls of the assembly slots 2 (203) are provided with insertion holes 3 (204). The outer arc surface of the thickness adjustment tube (2) has a plurality of assembly protrusions 205 equidistantly arranged along the center. The connecting protrusion 2 (201) is provided with insertion holes 4 (206).

2. The adjustable-thickness subway tunnel segment according to claim 1, characterized in that, The shape of the connecting protrusion (101) is adapted to the shape of the connecting slot (102), and the connecting protrusion (101) and the connecting slot (102) are engaged in plugging and unplugging.

3. The adjustable thickness subway tunnel segment according to claim 1, characterized in that, The shape of the connecting protrusion 2 (201) is adapted to the shape of the connecting slot 2 (202), and the connecting protrusion 2 (201) and the connecting slot 2 (202) are engaged in plugging and unplugging.

4. The adjustable thickness subway tunnel segment according to claim 1, characterized in that, The shapes of the first assembly slot (103) and the second assembly slot (203) are adapted to the shape and size of the assembly protrusion (205).

5. The adjustable thickness subway tunnel segment according to claim 1, characterized in that, The positions of the first socket (104), the second socket (105), the third socket (204), and the fourth socket (206) are corresponding.

6. The adjustable thickness subway tunnel segment according to claim 1, characterized in that, The bottom sidewall of the fixing bolt (3) is threaded through the first insertion hole (104), the second insertion hole (105), the third insertion hole (204) and the fourth insertion hole (206) to connect with the inner wall of the nut (4).

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