CN217632453U - Progressive triple-arch tunnel construction channel structure of underground station - Google Patents
Progressive triple-arch tunnel construction channel structure of underground station Download PDFInfo
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- CN217632453U CN217632453U CN202221246346.6U CN202221246346U CN217632453U CN 217632453 U CN217632453 U CN 217632453U CN 202221246346 U CN202221246346 U CN 202221246346U CN 217632453 U CN217632453 U CN 217632453U
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Abstract
The application relates to the field of tunnel construction, in particular to a progressive triple arch tunnel construction channel structure for an underground station, which comprises a plurality of channel main bodies connected end to end and a primary lining piece arranged on the inner wall of each channel main body; the channel main body at the head end is communicated with the inside of the tunnel main body, and the channel main body at the tail end is communicated with the ground; the length of the plurality of passage bodies is less than the length of the tunnel body. This application has the improvement and lasts to the effect of carrying the convenience of seting up the ventilating shaft, pouring the required material of platform in the tunnel.
Description
Technical Field
The application relates to the field of tunnel construction, in particular to a progressive triple arch tunnel construction channel structure for an underground station.
Background
At present, the triple arch refers to a tunnel structure formed by three tunnels arranged in parallel and intersecting arc contour lines of arch tops of adjacent tunnels in tunnel construction, and is commonly used in urban rail transit construction. In the construction of the triple arch, different construction methods, mainly a double-side-wall pit guiding method and a step method, are correspondingly adopted due to different clear distances between the centers of the three tunnels.
When the tunnel of the underground station is excavated, construction steps such as air shafts and pouring platforms need to be set up underground, a large amount of steel structures, templates and concrete need to be conveyed to the inside of the tunnel, the tunnel needs to be initially lined and secondarily lined, large-scale equipment such as trolleys need to be placed in the tunnel, and therefore efficiency is reduced when materials such as the steel structures, the templates and the concrete are conveyed continuously.
SUMMERY OF THE UTILITY MODEL
In order to improve and continue to offer the convenience of the required material of ventilating shaft, pouring platform to carrying in the tunnel, this application provides a gradual triple arch tunnel construction access structure of underground station.
The application provides a progressive triple arch tunnel construction access structure of underground station adopts following technical scheme:
a progressive triple-arch tunnel construction channel structure for an underground station comprises a plurality of channel main bodies which are connected end to end and primary lining pieces arranged on the inner walls of the channel main bodies; the channel main body at the head end is communicated with the inside of the tunnel main body, and the channel main body at the tail end is communicated with the ground; the length of the plurality of passage bodies is less than the length of the tunnel body.
By adopting the technical scheme, the initial lining piece is arranged to increase the overall strength of the channel main body; before a construction channel is laid, a side tunnel is dug on one side of a tunnel main body to be communicated with the ground, and then the channel main body is installed in the side tunnels which are dug one by one, so that the overall safety of the side tunnels is improved; after installing an appropriate number of channel main bodies according to the length of the actually excavated side tunnel, constructors can convey corresponding materials into the tunnel main body through a space formed by splicing a plurality of channel main bodies; the side holes at different positions can be formed according to different tunnel lengths, so that the channel main body can be conveniently laid nearby, and convenience of continuously conveying materials required for forming the air shaft and pouring the platform in the tunnel is improved.
Optionally, the channel body comprises a horizontal section and an arched section; two ends of the arch section are fixedly connected with two ends of the horizontal section; and anti-skid grains are arranged on one side of the horizontal section, which is close to the concave part of the arched section.
By adopting the technical scheme, one side of the horizontal section provided with the anti-skidding lines can be used by constructors when transporting materials, so that the safety of the constructors when passing through the inside of the channel main body is improved; the arch section is beneficial to dispersing the stress due to the radian of the arch section, thereby improving the integral load of the channel main body.
Optionally, a connecting assembly is arranged between adjacent arch segments; the connecting assembly comprises a positioning piece arranged at one end of the arched section and a left-hand fastener arranged at the other end of the arched section; the reverse fastener can be used for buckling the positioning pieces on the adjacent arch sections.
By adopting the technical scheme, the temperature property of connection between the adjacent arch sections is improved by arranging the connecting assembly; when the adjacent channel bodies are connected, the reverse buckling pieces and the positioning pieces are matched and buckled, so that the connection of the adjacent arch sections is realized.
Optionally, the positioning element includes a butt-joint protrusion arranged on the arch section and a positioning bolt detachably connected to the butt-joint protrusion; the butt-joint lug and the arched section have the same radian;
the left-hand thread piece comprises a base arranged at one end of the arched section far away from the butt joint convex block and a hook rotatably connected to the base; a groove for buckling one end of the hook far away from the base is concavely arranged on the butt joint convex block; the side wall of one end of the hook, which is far away from the base, can be abutted by a positioning bolt;
and an arc-shaped groove for buckling the butt-joint convex block is concavely arranged on one side of the base, which is far away from the arch section.
By adopting the technical scheme, when adjacent arch sections are butted, the convex parts of the butting convex blocks are buckled into the arc-shaped grooves, and then the hooks are rotated to be buckled into the grooves; and finally, screwing the positioning bolt into the butt joint convex block and simultaneously butting against the side wall of the hook to force the butt joint convex block and the arc-shaped groove to be mutually buckled, thereby completing the connection of the adjacent arch sections.
Optionally, a sealing gasket is arranged on the inner wall of the arc-shaped groove; the sealing gasket is arranged elastically.
By adopting the technical scheme, the sealing gasket is arranged between the inner wall of the arc-shaped groove and the butt joint lug, so that the sealing performance of the adjacent side walls is improved; because the sealing pad has elasticity, be convenient for adapt to different installation angle to the convenience when improving installation butt joint lug and arc wall.
Optionally, a plurality of bubble cavities are formed in the sealing gasket; an elastic oil film is arranged in the bubble cavity; and sealing oil is filled in the elastic oil film.
By adopting the technical scheme, the sealing oil is arranged in the oil film, and the sealing oil leaks out when the sealing oil is placed and transported, so that the convenience of transporting the sealing gasket is improved; when the sealing gasket is extruded after being buckled into the arc-shaped groove by the butt joint convex block, the oil film is broken to cause sealing oil to leak into the bubble cavity, and the sealing gasket is seeped, so that the oil seal of the butt joint convex block and the inner wall of the arc-shaped groove is realized, and the sealing performance of the sealing gasket is further improved.
Optionally, a drainage channel is arranged on the peripheral wall of the channel main body, and the extension direction of the drainage channel is lower than the arrangement direction of the plurality of channel main bodies.
Through adopting above-mentioned technical scheme, set up the moisture that drainage channel brought in with the passageway main part and guide towards lower direction to reduce the moisture of gathering in the passageway main part, improve the convenience when constructor transports the material.
Optionally, one end of the drainage channel, which is far away from the channel main body, is connected with a vertical air shaft; and one end of the vertical air shaft, which is far away from the drainage channel, is communicated with the ground.
Through adopting above-mentioned technical scheme, set up the vertical air shaft and be convenient for on the one hand with the interior moisture dispersion of drainage channel, on the other hand is convenient for carry fresh air in to the passageway main part to maintain the mobile gas in the passageway main part.
In summary, the present application includes at least one of the following beneficial technical effects:
1. side holes at different positions can be formed according to different tunnel lengths, so that a channel main body can be conveniently laid nearby, and convenience in continuously conveying materials required for forming an air shaft and pouring a platform into the tunnel is improved;
2. one side of the horizontal section provided with the anti-skid grains can be used by constructors for transporting materials, so that the safety of the constructors passing through the inside of the channel main body is improved; the arch section is beneficial to dispersing the stress due to the radian of the arch section, thereby improving the integral load of the channel main body.
Drawings
Fig. 1 is a schematic view of an overall installation structure of a tunnel construction passageway structure in the present application;
fig. 2 is a sectional view of a tunnel construction passage structure in the present application;
fig. 3 is an enlarged view of a portion a in fig. 2.
Description of reference numerals: 1. a channel body; 11. a horizontal segment; 12. an arch section; 2. a connection assembly; 21. a positioning member; 211. butting the bumps; 212. positioning a bolt; 22. a back-fastener; 221. a base; 222. hooking; 223. a groove; 224. an arc-shaped slot; 3. a drainage channel; 4. a vertical air shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to fig. 1-3 and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the application discloses progressive triple arch tunnel construction channel structure of underground station.
Referring to fig. 1 and 2, the progressive triple-arch tunnel construction channel structure of the underground station comprises a plurality of channel main bodies 1 and connecting assemblies 2 arranged between the adjacent channel main bodies 1; the channel main bodies 1 can be connected end to end through the connecting component 2; the head ends of the channel bodies 1 can be communicated with the interior of the tunnel body, and the tail ends of the channel bodies 1 can be communicated with the ground;
the integral length of the plurality of channel main bodies 1 is less than that of the tunnel main bodies after being connected; thereby be convenient for can set up the side hole of different positions according to the tunnel length of difference to this is convenient for lay passageway main part 1 nearby, thereby improves and continues to transport the convenience of seting up the air shaft, pouring the required material of platform in the tunnel.
A primary lining piece for increasing the strength is arranged in the channel main body 1; in this embodiment, the primary lining member includes a plurality of reinforcing steel bars arranged side by side on the inner wall of the channel body 1 and a concrete layer poured on the inner wall of the channel body 1 and covering the reinforcing steel bars; a plurality of reinforcing bars are distributed in stages along the length direction of the passage body 1.
Referring to fig. 2 and 3, the passage body 1 includes a horizontal section 11 and an arcuate section 12; two ends of the arch section 12 are fixedly connected with two ends of the horizontal section 11; the horizontal section 11 is close to one side of the arch section 12 indent is provided with anti-skidding line can supply the workman to use when transporting the material, improves the security when constructor passes through inside the passageway main part 1.
The connecting assembly 2 comprises a positioning piece 21 which is bolted to one end of the arch section 12 and a left-hand fastener 22 which is arranged at the other end of the arch section 12; the fastening elements 22 are adapted to engage with the positioning elements 21 of adjacent arch segments 12.
In the present embodiment, the positioning member 21 includes a docking protrusion 211 disposed on the arch segment 12 and a positioning bolt 212 screwed on the docking protrusion 211; the butt-joint lug 211 and the arch section 12 have the same radian and are arranged concentrically;
in this embodiment, the reverse buckling member 22 comprises a base 221 fixedly connected to one end of the arch segment 12 far away from the abutting convex block 211 and a hook 222 rotatably connected to the base 221; a groove 223 for buckling one end of the hook 222 far away from the base 221 is concavely arranged on the butt joint convex block 211; the side wall of one end of the hook 222 away from the base 221 can be abutted by the positioning bolt 212;
an arc-shaped groove 224 for buckling the butt-joint convex block 211 is concavely arranged on one side of the base 221 away from the arc-shaped section 12, and a sealing gasket is arranged on the inner wall of the arc-shaped groove 224; the sealing gasket is elastically arranged and is made of rubber in the embodiment. A plurality of bubble cavities are formed in the sealing gasket; an elastic oil film is arranged in the bubble cavity; the elastic oil film is filled with sealing oil.
The sealing oil is arranged in the oil film and leaks out when being placed and transported, so that the convenience of transporting the sealing gasket is improved; when the sealing gasket is pressed after being buckled into the arc-shaped groove 224 by the butt joint convex block 211, the sealing oil leaks into the bubble cavity due to the rupture of the oil film, and the sealing gasket seeps out, so that the oil seal of the inner walls of the butt joint convex block 211 and the arc-shaped groove 224 is realized, and the sealing performance of the sealing gasket is further improved.
Referring to fig. 1, a drain passage 3 is provided on a circumferential wall of a passage body 1, and an extending direction of the drain passage 3 is lower than an arrangement direction of a plurality of passage bodies 1. One end of the drainage channel 3, which is far away from the channel body 1, is connected with a vertical air shaft 4; one end of the vertical air shaft far away from the drainage channel 3 is communicated with the ground. The vertical air shaft 4 is provided to facilitate dispersion of water in the drain passage 3 and to facilitate supply of fresh air into the passage body 1, thereby maintaining the flow of air in the passage body 1.
The implementation principle of the progressive triple-arch tunnel construction channel structure of the underground station in the embodiment of the application is as follows: the initial lining piece is arranged to increase the overall strength of the channel body 1; before a construction channel is laid, a side tunnel is dug on one side of a tunnel main body to be communicated with the ground, and then the channel main body 1 is installed in the side tunnels which are dug one by one, so that the overall safety of the side tunnels is improved; after installing an appropriate number of channel main bodies 1 according to the length of the actually excavated side tunnel, a constructor can convey corresponding materials into the tunnel main body through a space formed by splicing a plurality of channel main bodies 1; the side holes at different positions can be formed according to different tunnel lengths, so that the channel main body 1 can be conveniently laid nearby, and convenience of continuously conveying materials required for forming the air shaft and pouring the platform into the tunnel is improved.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the present application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Claims (8)
1. The utility model provides a gradual trigeminy arched tunnel construction access structure of underground station which characterized in that: the lining structure comprises a plurality of end-to-end channel main bodies (1) and primary lining pieces arranged on the inner walls of the channel main bodies (1); the channel main body (1) at the head end is communicated with the interior of the tunnel main body, and the channel main body (1) at the tail end is communicated with the ground; the length of the plurality of channel bodies (1) is smaller than the length of the tunnel body.
2. The progressive triple arch tunnel construction channel structure of the underground station according to claim 1, characterized in that: the channel body (1) comprises a horizontal section (11) and an arched section (12); two ends of the arched section (12) are fixedly connected with two ends of the horizontal section (11); one side of the horizontal section (11) close to the concave arch section (12) is provided with anti-slip lines.
3. The progressive triple arch tunnel construction channel structure of the underground station as claimed in claim 2, wherein: a connecting component (2) is arranged between the adjacent arch sections (12); the connecting component (2) comprises a positioning piece (21) arranged at one end of the arch section (12) and a left-hand fastener (22) arranged at the other end of the arch section (12); the reverse buckling piece (22) can be buckled with the positioning piece (21) on the adjacent arch-shaped section (12).
4. The progressive triple-arch tunnel construction channel structure of an underground station as claimed in claim 3, wherein: the positioning piece (21) comprises a butt joint convex block (211) arranged on the arched section (12) and a positioning bolt (212) detachably connected to the butt joint convex block (211); the butt-joint lug (211) and the arched section (12) have the same radian;
the reverse fastener (22) comprises a base (221) arranged at one end of the arched section (12) far away from the butt joint convex block (211) and a hook (222) rotatably connected to the base (221); a groove (223) for buckling one end of the hook (222) far away from the base (221) is concavely arranged on the butt joint convex block (211); the side wall of one end of the hook (222) far away from the base (221) can be abutted by a positioning bolt (212);
one side of the base (221) far away from the arch section (12) is concavely provided with an arc-shaped groove (224) for buckling the butt joint convex block (211).
5. The progressive triple arch tunnel construction channel structure of an underground station according to claim 4, characterized in that: a sealing gasket is arranged on the inner wall of the arc-shaped groove (224); the sealing gasket is arranged elastically.
6. The progressive triple arch tunnel construction channel structure of the underground station as claimed in claim 5, wherein: a plurality of bubble cavities are formed in the sealing gasket; an elastic oil film is arranged in the bubble cavity; and sealing oil is filled in the elastic oil film.
7. The progressive triple arch tunnel construction channel structure of the underground station according to claim 1, characterized in that: the peripheral wall of the channel main body (1) is provided with a drainage channel (3), and the extension direction of the drainage channel (3) is lower than the arrangement direction of the channel main bodies (1).
8. The progressive triple arch tunnel construction channel structure of the underground station as claimed in claim 7, wherein: one end of the drainage channel (3) far away from the channel main body (1) is connected with a vertical air shaft (4); and one end of the vertical air shaft (4) far away from the drainage channel (3) is communicated with the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221246346.6U CN217632453U (en) | 2022-05-23 | 2022-05-23 | Progressive triple-arch tunnel construction channel structure of underground station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221246346.6U CN217632453U (en) | 2022-05-23 | 2022-05-23 | Progressive triple-arch tunnel construction channel structure of underground station |
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| Publication Number | Publication Date |
|---|---|
| CN217632453U true CN217632453U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221246346.6U Active CN217632453U (en) | 2022-05-23 | 2022-05-23 | Progressive triple-arch tunnel construction channel structure of underground station |
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| CN (1) | CN217632453U (en) |
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- 2022-05-23 CN CN202221246346.6U patent/CN217632453U/en active Active
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