Externally-embedded large-diameter subway shield concrete duct piece

Abstract

The utility model relates to the technical field of subway building construction, and discloses an externally-embedded large-diameter subway shield concrete duct piece which comprises a duct piece body, the top of the duct piece body is fixedly connected with an externally-embedded plate, the bottom of the duct piece body is fixedly connected with reinforcing rings, I-shaped steel is placed between the reinforcing rings, and the I-shaped steel is fixedly connected with the externally-embedded plate. Bolts are movably connected between the pipe pieces and the outer panel, between the reinforcing rings and the I-shaped steel, between the reinforcing rings and between the reinforcing rings, and nuts are movably connected to the outer sides of the bolts between the reinforcing rings. The pipe pieces are fixed more firmly through the bolts, the reinforcing rings between the pipe pieces are fixed together through the bolts and the nuts, the I-shaped steel is fixed in the reinforcing rings through the bolts, the strength between the pipe pieces is higher under the action of the E-shaped insertion strips and the I-shaped steel, and higher pressure can be borne.

Description

Technical Field

[0001] The utility model relates to the technical field of subway construction, and more specifically to an externally embedded large-diameter subway shield concrete pipe segment. Background Art

[0002] Shield construction is generally used in subway construction. Shield segments are the main assembly components of shield construction and the innermost barrier of the tunnel. They are responsible for resisting soil pressure, groundwater pressure and some special loads. Shield segments are the permanent lining structure of shield tunnels. The quality of shield segments is directly related to the overall quality and safety of the tunnel, and affects the waterproof performance and durability of the tunnel.

[0003] The shortcomings of the existing technology: the existing large-diameter subway shield concrete segment installation structure is not stable enough, the support strength is low, and when squeezed, it is easy to cause deformation between the segments, resulting in easy collapse, which is not conducive to its service life. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an externally embedded large-diameter subway shield concrete segment to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical scheme: an externally embedded large-diameter subway shield concrete segment, comprising a segment, the top of the segment is fixedly connected with an external embedded plate, the bottom of the segment is fixedly connected with a reinforcement ring, I-shaped steel is placed between the reinforcement rings, bolts are movably connected between the segment and the external embedded plate, the reinforcement ring and the I-shaped steel, and the reinforcement rings, nuts are movably connected on the outside of the bolts between the reinforcement rings, the external embedded plate comprises a plate body, the bottom of the plate body is fixedly connected with an insertion strip, the bottom of the plate body is provided with a plate groove, and both sides of the plate body are fixedly connected with sealing pads.

[0006] Preferably, the tube sheet comprises a sheet body, a sheet groove is provided inside the sheet body, and an embedding groove is provided on the top of the sheet body.

[0007] Preferably, the reinforcing ring comprises a ring body, a sealing sheet is fixedly connected to the front side of the ring body, ring grooves are provided inside the ring body and the sealing sheet, a bottom groove is provided at the bottom of the ring body, and slots are provided on both sides of the ring body and the sealing sheet.

[0008] Preferably, the I-shaped steel comprises a steel body, and a steel groove is provided at the bottom of the steel body.

[0009] Preferably, the cuttings are in a mountain-shaped structure.

[0010] Preferably, the pipe segments are made of high-strength impermeable concrete, and the outer panels and I-shaped steels are both made of steel.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model is advantageous for strengthening the supporting strength of the pipe segment by providing the outer panel and the I-shaped steel. During installation, the outer panel is embedded in the sheet groove between the two pipe segments, thereby connecting the two pipe segments together, and the pipe segment and the outer panel are fixed more firmly by bolts, and the sealing performance between the pipe segment and the outer panel is improved under the action of the sealing gasket. Then, the reinforcing rings between the pipe segments are fixed together by using bolts and nuts, and the sealing performance between the pipe segments is improved under the action of the sealing sheet. Then, the I-shaped steel is inserted into the slot between the reinforcing rings, and then the I-shaped steel is fixed in the reinforcing ring by using bolts. The outer panel and the I-shaped steel are both made of steel material, so that they have higher strength. When the pipe segment is squeezed, the strength between the pipe segments is higher under the action of the mountain-shaped inserts and the I-shaped steel, and the pipe segment can withstand higher pressure, thereby ensuring its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the overall structure of the pipe segment of the utility model.

[0015] Figure 3 It is a schematic diagram of the overall structure of the outer panel of the utility model.

[0016] Figure 4 It is a schematic diagram of the overall structure of the reinforcement ring of the utility model.

[0017] Figure 5 It is a schematic diagram of the overall structure of the I-shaped steel of the utility model.

[0018] The accompanying drawings are marked as follows: 1. pipe segment; 101. segment body; 102. segment groove; 103. embedded groove; 2. external embedded plate; 201. plate body; 202. insert; 203. plate groove; 204. sealing gasket; 3. reinforcement ring; 301. ring body; 302. ring groove; 303. bottom groove; 304. slot; 305. sealing plate; 4. nut; 5. I-shaped steel; 501. steel body; 502. steel groove; 6. bolt. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The externally embedded large-diameter subway shield concrete segments involved in the present invention are not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0020] The utility model provides an externally embedded large-diameter subway shield concrete segment, comprising a segment 1, an externally embedded plate 2 is fixedly connected to the top of the segment 1, a reinforcing ring 3 is fixedly connected to the bottom of the segment 1, a section steel 5 is placed between the reinforcing rings 3, bolts 6 are movably connected between the segment 1 and the externally embedded plate 2, the reinforcing ring 3 and the section steel 5, and the reinforcing ring 3 and the reinforcing ring 3, and nuts 4 are movably connected to the outer sides of the bolts 6 between the reinforcing rings 3 and the reinforcing rings 3, the externally embedded plate 2 comprises a plate body 201, a plug strip 202 is fixedly connected to the bottom of the plate body 201, a plate groove 203 is provided at the bottom of the plate body 201, and sealing gaskets 204 are fixedly connected to both sides of the plate body 201, and the externally embedded plate 2 is embedded in the plate groove 102 between two segments 1 during installation, so that the two segments 1 are connected together, and the segment 1 and the externally embedded plate 2 are fixed more firmly by the bolts 6, and the sealing performance between the segment 1 and the externally embedded plate 2 is better under the action of the sealing gasket 204.

[0021] Furthermore, the pipe segment 1 includes a segment body 101 , a segment groove 102 is provided inside the segment body 101 , an embedding groove 103 is provided on the top of the segment body 101 , the embedding groove 103 is used for embedding the outer embedded plate 2 , and the segment groove 102 is adapted to the bolt 6 .

[0022] Furthermore, the reinforcing ring 3 includes a ring body 301, a sealing sheet 305 is fixedly connected to the front side of the ring body 301, a ring groove 302 is provided inside the ring body 301 and the sealing sheet 305, a bottom groove 303 is provided at the bottom of the ring body 301, and slots 304 are provided on both sides of the ring body 301 and the sealing sheet 305. The reinforcing ring 3 is used to further strengthen the strength of the pipe segment 1, the ring groove 302 and the bottom groove 303 are adapted to the bolt 6, and the slot 304 is used for inserting the I-shaped steel 5. By using the bolt 6 and the nut 4, the reinforcing ring 3 between the pipe segments 1 is fixed together, and under the action of the sealing sheet 305, the sealing between the pipe segments 1 is improved.

[0023] Furthermore, the I-shaped steel 5 includes a steel body 501, and a steel groove 502 is provided at the bottom of the steel body 501. The steel groove 502 is adapted to the bolt 6. The I-shaped steel 5 is then inserted into the slot 304 between the reinforcement rings 3, and then the bolt 6 is used to fix the I-shaped steel 5 in the reinforcement ring 3.

[0024] Furthermore, the insert 202 is in a mountain-shaped structure, so that it can better connect the two pipe segments 1 together, and can be squeezed to provide better support.

[0025] Furthermore, the pipe segment 1 is made of high-strength impermeable concrete, and the outer panel 2 and the I-shaped steel 5 are both made of steel, so that the service life thereof is longer.

[0026] The working principle of the utility model is as follows: during installation, the outer panel 2 is embedded in the sheet groove 102 between the two pipe segments 1, so that the two pipe segments 1 are connected together, and the pipe segment 1 and the outer panel 2 are fixed more firmly by the bolt 6, and the sealing performance between the pipe segment 1 and the outer panel 2 is better under the action of the sealing gasket 204, and then the reinforcing rings 3 between the pipe segments 1 are fixed together by using the bolt 6 and the nut 4, and the sealing performance between the pipe segments 1 is better under the action of the sealing sheet 305, and then the I-shaped steel 5 is inserted into the slot 304 between the reinforcing rings 3, and then the I-shaped steel 5 is fixed in the reinforcing ring 3 by using the bolt 6. The outer panel 2 and the I-shaped steel 5 are both made of steel material, so that they have higher strength. When the pipe segment 1 is squeezed, the strength between the pipe segments 1 is higher under the action of the mountain-shaped insert 202 and the I-shaped steel 5, and it can withstand higher pressure, thereby ensuring its service life.

[0027] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0028] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An externally embedded large-diameter subway shield concrete segment, comprising a segment (1), characterized in that: The top of the pipe segment (1) is fixedly connected to an outer panel (2), the bottom of the pipe segment (1) is fixedly connected to a reinforcement ring (3), an I-shaped steel (5) is placed between the reinforcement rings (3), bolts (6) are movably connected between the pipe segment (1) and the outer panel (2), the reinforcement ring (3) and the I-shaped steel (5), and the reinforcement ring (3) and the reinforcement ring (3), and nuts (4) are movably connected to the outer sides of the bolts (6) between the reinforcement rings (3) and the reinforcement rings (3), the outer panel (2) comprises a plate body (201), the bottom of the plate body (201) is fixedly connected to an insert strip (202), the bottom of the plate body (201) is provided with a plate groove (203), and both sides of the plate body (201) are fixedly connected to sealing gaskets (204).

2. The externally embedded large-diameter subway shield concrete segment according to claim 1 is characterized in that: The tube segment (1) comprises a segment body (101), a segment groove (102) is provided inside the segment body (101), and an embedding groove (103) is provided at the top of the segment body (101).

3. The externally embedded large-diameter subway shield concrete segment according to claim 1 is characterized in that: The reinforcing ring (3) comprises a ring body (301), a sealing sheet (305) is fixedly connected to the front side of the ring body (301), a ring groove (302) is provided inside the ring body (301) and the sealing sheet (305), a bottom groove (303) is provided at the bottom of the ring body (301), and slots (304) are provided on both sides of the ring body (301) and the sealing sheet (305).

4. The externally embedded large-diameter subway shield concrete segment according to claim 1 is characterized in that: The I-shaped steel (5) comprises a steel body (501), and a steel groove (502) is provided at the bottom of the steel body (501).

5. The externally embedded large-diameter subway shield concrete segment according to claim 1 is characterized in that: The insert (202) is in a mountain-shaped structure.

6. The externally embedded large-diameter subway shield concrete segment according to claim 1 is characterized in that: The pipe segment (1) is made of high-strength impermeable concrete, and the outer panel (2) and the I-shaped steel (5) are both made of steel.

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