Tunnel segment and pipe ring

Abstract

The utility model relates to a tunnel segment and a tunnel ring, and the tunnel segment and the tunnel ring are characterized in that the tunnel segment comprises an arc-shaped inner segment and an arc-shaped outer segment; grouting holes are formed in the surface of the inner sheet; the outer sheet is arc-shaped; the inner pieces and the outer pieces are arranged at intervals in the radial direction, and clearance spaces are formed between the inner pieces and the outer pieces. The outer piece and the inner piece are arranged in a staggered mode in the circumferential direction, so that one side of the outer piece extends out of one side of the inner piece to form a first extending section, and the other side of the inner piece extends out of the other side of the outer piece to form a second extending section. Concrete is filled between the inner sheet and the outer sheet; one end of the supporting column is connected with the outer piece, and the other end of the supporting column is connected with the inner piece. According to the embodiment, all the pipe pieces can form an integral structure, and the splicing stability between the adjacent pipe pieces is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shield tunnel construction, in particular to a tunnel segment and segment ring. BACKGROUND

[0002] In the process of tunnel shield construction, after tunneling by a shield machine, a segment is laid in the tunnel to provide support. A single segment is generally arc-shaped, and a plurality of arc-shaped segments are circumferentially spliced to form a ring-shaped tunnel to provide support.

[0003] However, the general assembly method between adjacent segments is generally simple. For example, the utility model patent with the publication number CN208416553U discloses a tunnel segment structure, in which adjacent segments are only connected by a convex strip and a concave groove, which makes the assembly stability between adjacent segments poor. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide a tunnel segment and segment ring, and the specific technical solutions are as follows.

[0005] A tunnel segment comprises:

[0006] an inner segment in the shape of a circular arc, wherein a grouting hole is formed on the surface of the inner segment;

[0007] an outer segment in the shape of a circular arc, wherein the inner segment and the outer segment are arranged in a radial direction and form a gap space, the inner segment and the outer segment are arranged in a circumferential direction, one side of the outer segment extends outward to the inner segment to form a first extension segment, and the other side of the inner segment extends outward to the other side of the outer segment to form a second extension segment, and the inner segment and the outer segment are filled with concrete;

[0008] a support column arranged in the gap, one end of the support column being connected to the outer segment and the other end of the support column being connected to the inner segment.

[0009] Further, a limiting column is arranged on the side of the first extension segment facing the inner segment, and a limiting sleeve is arranged on the side of the second extension segment facing the outer segment, so that the limiting column and the limiting sleeve of circumferentially adjacent segments are matched.

[0010] Further, a first guide inclined surface is arranged on the bottom of the limiting column, and a second guide inclined surface is arranged on the opening side of the limiting sleeve.

[0011] Further, a convex strip is arranged on one end of the outer segment, and a concave groove is arranged on the other end of the outer segment, so that the convex strip and the concave groove are connected between axially adjacent segments.

[0012] Further, a first insertion strip is arranged on the side of the outer segment facing the inner segment, and the first insertion strip protrudes in the direction of the inner segment; a second insertion strip is arranged on the side of the inner segment facing the outer segment, and the second insertion strip protrudes in the direction of the outer segment.

[0013] Further, the first extension strip extends along the axis direction of the outer sheet and extends to the outer end of the outer sheet; the second extension strip extends along the axis direction of the inner sheet and extends to the outer end of the inner sheet; the first extension strip and the second extension strip are inserted between the inner sheet and the outer sheet of the axially adjacent pipe sheet.

[0014] Further, the inner sheet and the outer sheet are coaxially arranged.

[0015] Further, the inner sheet and the outer sheet are both one-sixth circular arcs.

[0016] Further, the first extension segment and the second extension segment have equal curvature.

[0017] A tunnel pipe ring comprises a plurality of tunnel pipe sheets as claimed in any one of the preceding claims, and the plurality of pipe sheets are arranged in a circumferential direction; the first extension segment and the second extension segment of two circumferentially adjacent pipe sheets overlap.

[0018] Beneficial effects: The tunnel pipe sheet and the pipe ring disclosed by the utility model, by arranging the inner sheet and the outer sheet in a staggered manner, the first extension segment and the second extension segment of circumferentially adjacent pipe sheets overlap, thereby filling concrete between the inner sheet and the outer sheet, and each pipe sheet forms an integral structure, improving the assembly stability between adjacent pipe sheets. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is one of the schematic diagrams of a single pipe sheet;

[0021] Figure 2 It is the second schematic diagram of a single pipe sheet;

[0022] Figure 3 It is an exploded schematic diagram of two pipe sheets in the circumferential direction;

[0023] Figure 4 It is an exploded schematic diagram of a plurality of pipe sheets in the axial direction;

[0024] Figure 5 It is a structural schematic diagram of a pipe ring.

[0025] Explanation of reference signs: 1, inner sheet; 2, outer sheet; 3, support column;

[0026] 11, grouting hole; 12, second extension section; 13, limiting sleeve; 14, second insertion strip;

[0027] 21, first extension section; 22, limiting column; 23, convex strip; 24, groove; 25, first insertion strip;

[0028] 100, segment. DETAILED DESCRIPTION

[0029] In order to make the above objectives, characteristics and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners, which are different from those described herein, and it can be apparent that similar modifications can be made by those skilled in the art without departing from the spirit and scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0032] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Moreover, a first feature "over", "above" and "on top of" a second feature can be directly above or obliquely above the second feature, or simply means that the first feature is higher in horizontal level than the second feature. A first feature "under", "below" and "underneath" a second feature can be directly below or obliquely below the second feature, or simply means that the first feature is lower in horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0035] Embodiment 1

[0036] The present embodiment provides a tunnel segment, referring to Figure 1 and Figure 2 , which comprises an inner segment, an outer segment and a support column. The inner segment is in the shape of a circular arc, and the surface of the inner segment is provided with a grouting hole. The outer segment is in the shape of a circular arc. The inner segment and the outer segment are arranged in a radial direction and form a gap space.

[0037] In the present embodiment, the inner segment and the outer segment are coaxially arranged, i.e. the radius of the inner segment is smaller than the radius of the outer segment. The outer segment and the inner segment are arranged in a circumferential direction and are staggered, so that one side of the outer segment protrudes outwardly to the inner segment to form a first protruding segment, and the other side of the inner segment protrudes outwardly to the other side of the outer segment to form a second protruding segment. The inner segment and the outer segment are filled with concrete.

[0038] The grouting hole can be used to fill the inner segment and the outer segment with concrete. The staggered arrangement of the inner segment and the outer segment allows the adjacent segments to form an overlapping state in the circumferential direction. The cast concrete forms a whole between the adjacent segments, thereby improving the assembly stability between the adjacent segments and the supporting effect on the tunnel. When pouring the concrete, a formwork or a plug can be used to seal the end of the segment.

[0039] The support column is located in the gap, and one end of the support column is connected to the outer segment and the other end is connected to the inner segment, so that the inner segment and the outer segment of a single segment form a whole.

[0040] The tunnel segment provided by the embodiment is characterized in that the first extension section and the second extension section of the circumferentially adjacent segments overlap, the concrete is filled between the inner segment and the outer segment, each segment forms an integral structure, and the assembly stability between the adjacent segments is improved.

[0041] Specifically, continuing to refer to Figure 1 and Figure 2 the first extension section is provided with a limiting column on the side facing the inner segment; the second extension section is provided with a limiting sleeve on the side facing the outer segment; and the limiting column and the limiting sleeve of the circumferentially adjacent segments are matched. Through the matching of the limiting column and the limiting sleeve, the adjacent segments can be preliminarily positioned, the subsequent filling of the concrete is facilitated, and the assembly stability between the adjacent segments is further improved. It should be noted that when a plurality of segments are arranged in a circular ring, the limiting column and the limiting sleeve can be respectively arranged on all the segments, or the limiting column and the limiting sleeve can be arranged on part of the segments.

[0042] Specifically, the bottom of the limiting column is provided with a first guide inclined surface; and the opening side of the limiting sleeve is provided with a second guide inclined surface. The assembly of the limiting column and the limiting sleeve is facilitated.

[0043] Specifically, one end of the outer segment is provided with a protruding strip protruding towards the axis direction, and the other end is provided with a recessed groove also protruding towards the axis direction; and the protruding strip and the recessed groove of the axially adjacent segments are matched. The segments in the axial direction are facilitated to be assembled. Correspondingly, the protruding strip and the recessed groove structure are also arranged on the inner segment, facilitating the assembly between the adjacent inner segments.

[0044] Specifically, the outer segment is provided with a first insertion strip on the side facing the inner segment, and the first insertion strip protrudes towards the direction of the inner segment; and the inner segment is provided with a second insertion strip on the side facing the outer segment, and the second insertion strip protrudes towards the direction of the outer segment. Through the arrangement of the first insertion strip and the second insertion strip, the bonding strength between the inner segment, the outer segment and the concrete is respectively strengthened, and the assembly stability between the segments is further improved.

[0045] Specifically, the first insertion strip extends along the axis direction of the outer segment and protrudes to the outer end of the outer segment; and the second insertion strip extends along the axis direction of the inner segment and protrudes to the outer end of the inner segment; and the first insertion strip and the second insertion strip are inserted between the inner segment and the outer segment of the axially adjacent segments. Through the insertion of the first insertion strip and the second insertion strip between the inner segment and the outer segment of the axially adjacent segments, the first insertion strip and the second insertion strip are combined more closely with the concrete filled in the adjacent segments, and the assembly stability between the axially adjacent segments is improved.

[0046] Specifically, in the embodiment, the inner segment and the outer segment have equal curvature and are both one-sixth of a circular arc, so that six segments are assembled to form a complete circular ring.

[0047] Specifically, the first and second overhanging segments have equal arc length. The first and second overhanging segments of adjacent segments completely overlap, so that the inner and outer segments form a complete ring, improving the supporting effect.

[0048] Embodiment 2

[0049] Referring to Figure 5 As shown in the drawings, the embodiment provides a tunnel pipe ring, comprising a plurality of tunnel pipe segments as described in Embodiment 1. The plurality of pipe segments are arranged in a circumferential direction; the first and second overhanging segments of two circumferentially adjacent pipe segments overlap.

[0050] The tunnel pipe ring provided by the embodiment fills the concrete between the inner and outer segments by arranging the inner and outer segments in a staggered manner, so that the first and second overhanging segments of circumferentially adjacent pipe segments overlap, thereby forming a whole structure of each pipe segment and improving the stability of the assembly between adjacent pipe segments.

[0051] The technical features of the above embodiments can be combined in any way. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0052] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of variations and improvements can be made, which are within the scope of the present application. Therefore, the scope of the patent application should be subject to the appended claims.

Claims

1. A tunnel segment, characterized by, include: The inner sheet is arc-shaped; grouting holes are provided on the surface of the inner sheet. The outer piece is arc-shaped; the inner piece and the outer piece are arranged radially at intervals to form a gap space; the outer piece and the inner piece are staggered circumferentially, so that one side of the outer piece extends outward toward one side of the inner piece to form a first protruding section, and the other side of the inner piece extends outward toward the other side of the outer piece to form a second protruding section; the space between the inner piece and the outer piece is filled with concrete. The support column is located within the gap, with one end connected to the outer piece and the other end connected to the inner piece.

2. A tunnel segment according to claim 1, wherein, The first protruding section is provided with a limiting post on the side facing the inner segment; the second protruding section is provided with a limiting sleeve on the side facing the outer segment; so that the limiting post and the limiting sleeve cooperate between adjacent circumferential segments.

3. A tunnel segment according to claim 2, wherein, The bottom of the limiting post is provided with a first guide slope; the opening side of the limiting sleeve is provided with a second guide slope.

4. A tunnel segment according to claim 1, wherein, One end of the outer sheet is provided with a protrusion and the other end is provided with a groove; so that axially adjacent tubes can be engaged by the protrusion and the groove.

5. A tunnel segment according to claim 1, wherein, The outer sheet has a first insert on the side facing the inner sheet, and the first insert protrudes in the direction of the inner sheet; the inner sheet has a second insert on the side facing the outer sheet, and the second insert protrudes in the direction of the outer sheet.

6. A tunnel segment according to claim 5, wherein, The first insert extends along the axial direction of the outer sheet and extends to the outer end of the outer sheet; the second insert extends along the axial direction of the inner sheet and extends to the outer end of the inner sheet; so that the first insert and the second insert are inserted between the inner and outer sheets of the axially adjacent tube segments.

7. A tunnel segment according to claim 1, wherein, The inner and outer sheets are arranged coaxially.

8. A tunnel segment according to claim 1, wherein, Both the inner and outer pieces are one-sixth of a circle.

9. A tunnel segment according to claim 1, wherein, The first extended segment and the second extended segment have the same curvature.

10. A tunnel tube ring characterized by, It includes a plurality of tunnel segments as described in any one of claims 1 to 9, wherein the plurality of segments are arranged in a circumferential direction; the first extension segment and the second extension segment between two circumferentially adjacent segments overlap.

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