CN212079319U - Duct piece of tunnel and duct piece connecting structure - Google Patents
Duct piece of tunnel and duct piece connecting structure Download PDFInfo
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- CN212079319U CN212079319U CN202020271406.4U CN202020271406U CN212079319U CN 212079319 U CN212079319 U CN 212079319U CN 202020271406 U CN202020271406 U CN 202020271406U CN 212079319 U CN212079319 U CN 212079319U
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Abstract
The utility model provides a section of jurisdiction and section of jurisdiction connection structure in tunnel, the both sides of section of jurisdiction are formed with first breach and second breach respectively, and the first breach and the second breach of different sections of jurisdiction can splice each other and form and have open-ended caulking groove. The tube sheet comprises a first bottom surface far away from the opening and a first side part connected with the first bottom surface on the first notch. The tube sheet comprises a second bottom surface far away from the opening and a second side part connected with the second bottom surface on the second notch. The first side part and/or the second side part are/is provided with a convex body, and a groove is formed between the convex body and the corresponding first bottom surface and/or the second bottom surface. Through setting up convex body and recess to when the section of jurisdiction is connected, the convex body can have certain limiting displacement to the obturator of filling in the caulking groove, has reduced the risk that the obturator drops effectively.
Description
Technical Field
The utility model relates to a tunnel construction technical field especially relates to a section of jurisdiction and section of jurisdiction connection structure in tunnel.
Background
In tunnel construction, the shield method has the advantages of safe construction, good construction quality, high construction speed, small influence on ground traffic and surrounding environment, difficult weather influence on construction and the like, and is suitable for various stratums. The shield tunnel usually adopts prefabricated section of jurisdiction, moves back several millimeters in the inboard seam crossing of section of jurisdiction, forms the caulking groove after the section of jurisdiction concatenation to local contact stress is too big and causes the damage of breaking of tip when avoiding the section of jurisdiction to assemble. And the caulking groove is usually filled with a filling body to prevent water seepage.
However, in engineering practice, in the process of operating the tunnel, the filler may fall off, which may cause adverse effects on normal operation of the tunnel.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application is directed to a duct piece and a duct piece connecting structure for a tunnel, so as to solve the problem of dropping off of a filling body.
In order to achieve the above object, an aspect of the embodiments of the present application provides a duct piece for a tunnel, wherein a first gap and a second gap are respectively formed on two sides of the duct piece, and the first gap and the second gap of different duct pieces can be spliced with each other to form an caulking groove with an opening; the tube sheet comprises a first bottom surface far away from the opening and a first side part connected with the first bottom surface on the first notch, and the tube sheet comprises a second bottom surface far away from the opening and a second side part connected with the second bottom surface on the second notch; the first side part and/or the second side part are/is provided with a convex body, and a groove is formed between the convex body and the corresponding first bottom surface and/or second bottom surface.
Further, the convex body comprises a first convex body formed on the first side portion and a second convex body formed on the second side portion; the grooves include a first groove formed between the first bottom surface and the first protrusion, and a second groove formed between the second bottom surface and the second protrusion.
Further, the first convex body is formed at one end of the first side part far away from the first bottom surface; and/or the second convex body is formed at one end of the second side part far away from the second bottom surface.
Further, the first convex body is formed in the middle of the first side portion, the second convex body is formed at one end, far away from the second bottom surface, of the second side portion, and the first convex body and the second concave body in the caulking groove are arranged oppositely.
Further, the first convex body is formed in the middle of the first side portion, the second convex body is formed in the middle of the second side portion, and the first convex body and the second convex body in the caulking groove are arranged oppositely.
Further, the first side portion is formed at one end, far away from the first bottom surface, of the first side portion, the cross section of the first convex body is rectangular, and the cross section of the first groove is in a right trapezoid shape; the second convex body is formed at one end, far away from the second bottom surface, of the second side portion, the cross section of the second convex body is rectangular, and the cross section of the second groove is in a right trapezoid shape.
The section of jurisdiction in tunnel that this application embodiment provided sets up convex body and recess through setting up in first breach and the second breach on at least one to make the section of jurisdiction connect the back, the convex body has certain limiting displacement to the obturator of filling in the caulking groove, and then has reduced the risk that the obturator takes place to drop.
Another aspect of the embodiments of the present application provides a segment connecting structure for a tunnel, including: in any of the duct pieces, the caulking groove is formed by splicing two adjacent duct pieces, the opening faces the inner side of the tunnel, and the caulking is communicated with the caulking groove; and a filling body filled in the caulking groove.
Further, the filling body comprises a filling body and a water-swelling body, and the water-swelling body is filled between the filling body and the first side part; and/or the water-swellable body is filled between the filling body and the second side part.
Further, the filling body also comprises a foam body, and the foam body is filled at the joint of the filling body and the caulking.
Further, the filling body comprises a water stop material, and the water stop material is distributed in the filling body.
The segment connecting structure of tunnel that this application embodiment provided owing to adopted above-mentioned segment, therefore has the same technological effect, no longer gives unnecessary details here.
Drawings
Fig. 1 is a sectional view of a segment connecting structure of a tunnel according to a first embodiment of the present application;
fig. 2 is a sectional view of a segment connecting structure of a tunnel according to a second embodiment of the present application;
fig. 3 is a sectional view of a segment connecting structure of a tunnel according to a third embodiment of the present application; and
fig. 4 is a sectional view of a segment connecting structure of a tunnel according to a fourth embodiment of the present application.
Description of reference numerals:
1. a duct piece; 11. a first notch; 111. a first bottom surface; 112. a first side portion; 12. a second notch; 121. a second bottom surface; 122. a second side portion; 13. a convex body; 131. a first convex body; 132. a second convex body; 14. a groove; 141. a first groove; 142. a second groove; 21. caulking; 22. caulking grooves; 221. an opening; 222. a bottom; 3. a filler; 31. filling the body; 32. a water-swellable body; 33. a foam.
Detailed Description
It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
The directional terms used in the description of the present application are used for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
In an aspect of the embodiment of the present application, referring to fig. 1 to 4, a first gap 11 and a second gap 12 are respectively formed on two sides of a duct piece 1, and the first gap 11 and the second gap 12 of different duct pieces 1 can be spliced to form a caulking groove 22 having an opening 221. The segment 1 includes a first bottom surface 111 away from the opening 221 and a first side portion 112 connected to the first bottom surface 111 at the first notch 11. Segment 1 includes a second bottom surface 121 distal from opening 221 and a second side portion 122 contiguous with second bottom surface 121 at second gap 12. The first side portion 112 has a protrusion 13 formed thereon, and a groove 14 is formed between the protrusion 13 and the corresponding first bottom surface 111.
In another embodiment, the second side portion 122 has a protrusion 13 formed thereon, and a groove 14 is formed between the protrusion 13 and the corresponding second bottom surface 121. The convex body 13 may be provided on either one of the first side portion 112 and the second side portion 122, or the convex body 13 may be provided on both the first side portion 112 and the second side portion 122. The cross-sectional shape of the convex body 13 may be a triangle, or may be other shapes such as a rectangle and a trapezoid.
In an embodiment, taking the application of the tube sheet 1 in the tube sheet connection structure provided in the present application as an example, please refer to fig. 1 to 4, the tube sheet connection structure includes the tube sheet 1 and the filling body 3. The adjacent two segments 1 are spliced to form a caulking joint 21 and a caulking groove 22, and the caulking joint 21 is communicated with the caulking groove 22. The opening 221 faces the inside of the tunnel and the bottom 222 communicates with the caulking 21, facing the outside of the tunnel. The filler 3 is filled in the caulking groove 22. Because at least one of the first side portion 112 and the second side portion 122 has the convex body 13, the convex body 13 can limit the position of the filling body 3, and the existence of the convex body 13 and the groove 14 increases the contact area between the filling body 3 and the inner wall of the caulking groove 22, namely, the static friction force of the caulking groove 22 on the filling body 3. When the filler 3 has a relative movement trend relative to the inner wall of the caulking groove 22, on one hand, the caulking groove 22 has a large friction force on the filler 3, and on the other hand, the convex body 13 has a certain limiting effect on the filler 3, so that the filler 3 can be effectively prevented from falling off.
In the prior art, the inner surface of the caulking groove 22 is generally a straight surface, and in the tunnel operation process, the filling body 3 between the duct piece 1 and the adjacent duct piece 1 can receive the effects of various impact loads and the transient pressure effect brought by the aerodynamic effect in the tunnel, so the working environment of the filling body 3 between the duct piece 1 and each duct piece 1 is very severe, and the filling body 3 is easily peeled off from the duct piece 1 and then falls off.
The section of jurisdiction 1 in tunnel that this application embodiment provided through set up convex body 13 and recess 14 in first lateral part 112 and second lateral part 122 at least one to there is certain limiting displacement to obturator 3 among the section of jurisdiction connection structure, and then can prevent obturator 3 from droing effectively.
It will be appreciated that the first bottom surface 111 and the second bottom surface 121 may be inclined, and the bottom 222 of the caulking groove 22 formed by splicing different tube sheets 1 is a conical surface, as shown in fig. 1 and 4. The first bottom surface 111 and the second bottom surface 121 may also be disposed at a straight angle, and the bottom 222 of the caulking groove 22 formed after the different tube sheets 1 are spliced together is a plane, please refer to fig. 2 to 3.
In one embodiment, referring to fig. 1 to 4, in the segment 1 of the tunnel provided by the present application, the convex bodies 13 include first convex bodies 131 formed on the first side portion 112 and second convex bodies 132 formed on the second side portion 122. The grooves 14 include a first groove 141 formed between the first bottom surface 111 and the first convex body 131, and a second groove 142 formed between the second bottom surface 121 and the second convex body 132. The first protrusions 131 and the second protrusions 132 may be symmetrically disposed or alternately disposed in the caulking groove 22, and the cross-sectional shapes thereof may be the same or different. Through setting up first convex body 131 and second convex body 132 simultaneously, can further improve caulking groove 22 inner wall to the limiting displacement of obturator 3 and caulking groove 22 to the frictional force of obturator 3 to further prevent that obturator 3 from taking place to drop.
In an embodiment, please refer to fig. 1 and 4, in the segment 1 of the tunnel provided by the present application, the first protrusion 131 is formed at an end of the first side portion 112 away from the first bottom surface 111, and at this time, the area between the first protrusion 131 and the first bottom surface 111 is the first groove 141.
In an embodiment, referring to fig. 1, 3 and 4, the second protrusion 132 is formed on an end of the second side portion 122 away from the second bottom surface 121. At this time, the areas between the second protrusions 132 and the second bottom surface 121 are the second grooves 142.
In a preferred embodiment, the first protrusion 131 is formed on the first side portion 112 at an end away from the first bottom surface 111, and the second protrusion 132 is formed on the second side portion 122 at an end away from the second bottom surface 121. The first convex body 131 and the second convex body 132 are both formed at the opening 221 of the caulking groove 22, so that after the filling body 3 is filled in the caulking groove 22, the first convex body 131 and the second convex body 132 at the opening 221 have a certain limiting effect on the filling body 3 in the first groove 141 and the second groove 142, thereby effectively reducing the risk that the filling body 3 falls off from the opening 221. Preferably, the first protrusions 131 and the second protrusions 132 are symmetrically distributed in the caulking groove 22, and have the same cross-sectional shape. So that the force applied by the filling body 3 in the caulking groove 22 is symmetrical and is more easily balanced.
In an embodiment, referring to fig. 3, in the tube sheet 1 provided by the present application, the first protrusion 131 is formed at the middle of the first side portion 112, the second protrusion 132 is formed at one end of the second side portion 122 away from the second bottom surface 121, and the first protrusion 131 and the second groove 142 in the caulking groove 22 are disposed opposite to each other. At this time, the cross section of the filler 3 in the caulking groove 22 is distributed in a substantially Z shape, and the first convex body 131 and the second convex body 132 respectively limit different portions of the filler 3, thereby further improving the limiting effect of the caulking groove 22 on the filler 3 and preventing the filler 3 from falling off.
In an embodiment, referring to fig. 2, in the segment 1 of the tunnel provided by the present application, the first protrusion 131 is formed in the middle of the first side portion 112, the second protrusion 132 is formed in the middle of the second side portion 122, and the first protrusion 131 and the second protrusion 132 in the caulking groove 22 are disposed opposite to each other. At this time, the cross section of the filler 3 in the caulking groove 22 is distributed in an approximately "I" shape, so that the filler 3 is limited in two directions, and the filler 3 is further effectively prevented from falling off.
In an embodiment, referring to fig. 4, in the duct piece 1 of the tunnel provided by the present application, the first protrusion 131 is formed at an end of the first side portion 112 away from the first bottom surface 111, the cross section of the first protrusion 131 is rectangular, and the cross section of the first groove 141 is a right trapezoid. The second protrusion 132 is formed on the first side portion 112 at an end away from the second bottom surface 121, the cross section of the second protrusion 132 is rectangular, and the cross section of the second groove 142 is a right trapezoid. At this time, the first bottom surface 111 and the second bottom surface 121 are both disposed obliquely, and the contact surface of the convex body 13 and the filling body 3 is disposed at a right angle, so that when the filling body 3 has a tendency to fall off, a normal force is generated therebetween, thereby effectively preventing the risk of the filling body 3 sliding and falling off.
Another aspect of the embodiments of the present application provides a segment connecting structure for a tunnel, including any one of the segments 1 and the filling body 3. Two adjacent segments 1 are spliced to form a caulking 21 and a caulking groove 22, the caulking groove 22 is provided with an opening 221, the opening 221 faces the inner side of the tunnel, and the caulking 21 is communicated with the caulking groove 22. The filler 3 is filled in the caulking groove 22. Correspondingly, the bottom 222 opposite the opening 221 communicates with the caulking 21, the caulking 21 facing the outside of the tunnel.
Specifically, a plurality of segments 1 are spliced, in order to prevent the damage of the end part caused by overlarge local contact stress when the segments 1 are spliced, caulking joints 21 are left between the segments 1, the matching part of the first notch 11 and the second notch 12 is provided with a caulking groove 22, and the caulking groove 22 is positioned on the inner side of the tunnel.
The tube sheet connecting structure provided by the application has the same technical effects due to the adoption of the tube sheet 1 provided by any one of the above embodiments, and the description is omitted here.
Preferably, the filler 3 is uniformly and fully embedded in the caulking groove 22 by the amorphous material, and is smoothed at the opening 221, and the filler 3 is formed in the caulking groove 22 after weathering, so that the filler 3 can prevent water flow through the caulking groove 22.
In one embodiment, referring to fig. 1, 2 and 4, the present application provides a tube sheet connecting structure, in which the filling body 3 includes a filling body 31 and a water-swellable body 32, and the water-swellable body 32 is filled between the filling body 31 and the first side portion 112. Specifically, water-swellable body 32 may swell upon encountering water, e.g., water-swellable body 32 is a water-swellable rubber body. When water penetrates into the caulking groove 22, the water-swellable body 32 swells and increases in volume. On the one hand, the increase of water-swellable body 32 volume has prevented effectively that water further infiltrates in caulking groove 22, and on the other hand, the increase of water-swellable body 32 volume has certain squeezing action to filling body 31 and section of jurisdiction 1 for the two is compacter, thereby has improved the frictional force between the two, has certain guarantee effect to preventing that obturator 3 from droing.
In one embodiment, referring to fig. 2-4, the water-swellable body 32 is filled between the filling body 31 and the second side 122. In this case, the filling of the water-swellable body 32 between the filling body 31 and the first side portion 112 has the same technical effect as in the previous embodiment, and will not be described herein again.
It should be noted that, the water-swellable body 3 is filled in the first side portion 112 or the second side portion 122 where the protrusions 13 are formed, so that the volume of the water-swellable body 32 and the contact area between the water-swellable body 32 and the filling body 31 are more easily increased, the water absorption capacity of the water-swellable body 32 and the friction force against the filling body 31 are increased, and water penetration and falling-off of the filling body 3 are prevented. Even if the filler body 31 and caulking groove 22 are peeled off, the waterproof effect of the filler body 3 is still effective due to the presence of the water-swellable body 32.
In one embodiment, referring to fig. 2 and 4, the present application provides a tube sheet connecting structure in which a water-swellable body 32 is filled between the filling body 31 and the first side portion 112 and between the filling body 31 and the second side portion 122. The water-swellable bodies 32 are respectively arranged on two sides of the filling body 31, so that the double-guarantee effect is achieved.
In an embodiment, referring to fig. 1 to 4, in the tube sheet connecting structure provided by the present application, the filling body 3 further includes a foam body 33, and the foam body 33 is filled at a joint of the caulking groove 22 and the caulking groove 21. It will be appreciated that the foam 33 itself has some waterproofing effect, and the foam 33 is filled in the caulked seams 21, which provides a final layer of protection against water of the entire segment connecting structure since the caulked seams 21 face the outside of the tunnel.
In one embodiment, the filling body 3 provided by the present application includes a water stop material distributed in the filling body 3. Specifically, the water-stop material is water-soluble and oil-soluble polyurethane, cyanogen coagulation, propyl coagulation, or the like. The water-stop material is mixed in the filler 3, and then the filler 3 is filled in the caulking groove 22, so that even if a small amount of water is leaked, the existence of the water-stop material can provide another important guarantee for preventing the water leakage.
The various embodiments/implementations provided herein may be combined with each other without contradiction.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A duct piece of a tunnel is characterized in that a first gap and a second gap are formed on two sides of the duct piece respectively, and the first gap and the second gap of different duct pieces can be spliced with each other to form an caulking groove with an opening;
the tube sheet comprises a first bottom surface far away from the opening and a first side part connected with the first bottom surface on the first notch, and the tube sheet comprises a second bottom surface far away from the opening and a second side part connected with the second bottom surface on the second notch;
the first side part and/or the second side part are/is provided with a convex body, and a groove is formed between the convex body and the corresponding first bottom surface and/or the second bottom surface.
2. The tubesheet of claim 1, wherein the bosses include a first boss formed on the first side portion and a second boss formed on the second side portion;
the grooves include a first groove formed between the first bottom surface and the first protrusion, and a second groove formed between the second bottom surface and the second protrusion.
3. The tubesheet of claim 2, wherein the first projections are formed on the first side at an end distal from the first bottom surface; and/or the presence of a gas in the gas,
the second convex body is formed at one end of the second side part far away from the second bottom surface.
4. The duct piece of claim 2, wherein the first protrusion is formed at a middle portion of the first side portion, the second protrusion is formed at an end of the second side portion away from the second bottom surface, and the first protrusion in the caulking groove is disposed opposite to the second groove.
5. The tubesheet of claim 2, wherein the first projections are formed at a central portion of the first side portion and the second projections are formed at a central portion of the second side portion, the first projections and the second projections being disposed opposite each other within the caulk groove.
6. The segment of claim 2,
the first convex body is formed at one end, far away from the first bottom surface, of the first side part, the cross section of the first convex body is rectangular, and the cross section of the first groove is in a right trapezoid shape;
the second convex body is formed at one end, far away from the second bottom surface, of the second side portion, the cross section of the second convex body is rectangular, and the cross section of the second groove is in a right trapezoid shape.
7. A segment connecting structure of a tunnel, comprising:
the duct piece of any one of claims 1-6, wherein adjacent two duct pieces are spliced to form a caulking joint and the caulking groove, the opening faces the inner side of the tunnel, and the caulking joint is communicated with the caulking groove; and the number of the first and second groups,
and the filling body is filled in the caulking groove.
8. The segment connecting structure according to claim 7, wherein the filler body includes a filler body and a water-swellable body;
the water-swellable body is filled between the filling body and the first side part; and/or the water-swellable body is filled between the filling body and the second side part.
9. The segment connecting structure according to claim 7 or 8, wherein the filling body further comprises a foam body filled at a junction of the caulking groove and the caulking groove.
10. The segment connecting structure according to claim 7 or 8, wherein the filling body includes a water stopping material, the water stopping material being distributed in the filling body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020271406.4U CN212079319U (en) | 2020-03-06 | 2020-03-06 | Duct piece of tunnel and duct piece connecting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020271406.4U CN212079319U (en) | 2020-03-06 | 2020-03-06 | Duct piece of tunnel and duct piece connecting structure |
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| Publication Number | Publication Date |
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| CN212079319U true CN212079319U (en) | 2020-12-04 |
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| CN202020271406.4U Active CN212079319U (en) | 2020-03-06 | 2020-03-06 | Duct piece of tunnel and duct piece connecting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586083A (en) * | 2021-08-19 | 2021-11-02 | 北京隧盾市政建设有限公司 | Segment caulking plugging structure and plugging process |
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2020
- 2020-03-06 CN CN202020271406.4U patent/CN212079319U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586083A (en) * | 2021-08-19 | 2021-11-02 | 北京隧盾市政建设有限公司 | Segment caulking plugging structure and plugging process |
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