CN218716858U - Waterproof structure for composite construction joint of tunnel - Google Patents
Waterproof structure for composite construction joint of tunnel Download PDFInfo
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- CN218716858U CN218716858U CN202222986464.7U CN202222986464U CN218716858U CN 218716858 U CN218716858 U CN 218716858U CN 202222986464 U CN202222986464 U CN 202222986464U CN 218716858 U CN218716858 U CN 218716858U
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Abstract
The utility model provides a compound construction joint waterproof construction in tunnel, include: the waterproof board comprises a spray anchor concrete layer, a non-woven fabric layer, a waterproof board, a first waterproof coating layer, a second waterproof coating layer, a first molded concrete layer and a second molded concrete layer; the spray anchor concrete layer is arranged on the inner side of the tunnel matrix, and the non-woven fabric layer is arranged on the inner side face of the spray anchor concrete layer; the waterproof plate is connected with the shotcrete layer through a bolt fixing structure; the first waterproof coating layer is arranged on the inner side face of the non-woven fabric layer; the second waterproof coating layer is arranged in a longitudinal construction joint formed between the first molded concrete layer and the second molded concrete layer; in this scheme, the waterproof board combines first water proof coating can be to the vertical waterproof effect that realizes of spray anchor concrete layer, utilizes second dope layer can to the first mould build concrete layer and the second mould build vertical construction joint between the concrete layer realize the waterproof sealing function, has solved and has leaked in a large number in the construction joint in the tunnel construction of secretly digging, the problem of infiltration.
Description
Technical Field
The utility model relates to a tunnel waterproof technology field, concretely relates to compound construction joint waterproof construction in tunnel.
Background
In the tunnel construction process, because the tunnel construction period is long and the concrete pouring time is different, the later poured concrete exceeds the initial setting time, and a joint surface exists between the later poured concrete and the earlier poured concrete, and the joint surface is called as a construction joint. Because the joint surface formed by concrete pouring in sequence is easy to have various hidden troubles and quality problems, the treatment of the construction joints by different structural projects needs attention. The water leakage of the tunnel and the underground engineering mainly occurs at the construction joint, so how to implement effective waterproof measures for the construction joint is a technical problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compound construction joint waterproof construction in tunnel to solve the problem that current tunnel vertical construction joint leaks.
The utility model provides a compound construction joint waterproof construction in tunnel for the waterproof of the vertical construction joint in tunnel, include: the waterproof board comprises a spray anchor concrete layer, a non-woven fabric layer, a waterproof board, a first waterproof coating layer, a second waterproof coating layer, a first molded concrete layer and a second molded concrete layer;
the spray anchor concrete layer is arranged on the inner side of the tunnel matrix, and the inner side surface of the spray anchor concrete layer is a flat surface;
the non-woven fabric layer is arranged on the inner side surface of the spray anchor concrete layer;
the waterproof plate is connected with the shotcrete layer through a bolt fixing structure;
the first waterproof coating layer is arranged on the inner side surface of the waterproof board;
the first molded concrete layer is arranged on the inner side surface of the first waterproof coating layer;
the second waterproof coating layer is arranged on the inner side surface of the first molded concrete layer;
and the second molded concrete layer is arranged on the inner side surface of the first waterproof coating layer.
Furthermore, the waterproof board adopts the EVA material, and its thickness is 1.5mm.
Further, the thickness of the first waterproof coating layer is 1.5mm.
Further, the thickness of the second waterproof coating layer is 5mm.
Further, the first waterproof coating layer and the second waterproof coating are rubber asphalt waterproof coatings.
Further, the bolt fixing structure comprises a bolt and an expansion water stop ring; the bolt passes through first waterproof coating layer, waterproof board, non-woven fabrics and the spray anchor concrete layer is connected, the expansion seal ring is fixed between nut and first waterproof coating layer.
Further, nut, inflation seal ring and first waterproof coating layer are sealed through the third waterproof coating layer.
Further, the third waterproof coating layer is rubber asphalt waterproof coating.
Adopt above-mentioned technical scheme, compare with prior art, the beneficial effect of the compound construction joint waterproof construction in tunnel that this application provided is:
the spray anchor concrete layer is arranged on the inner side of the tunnel matrix, and the inner side surface of the spray anchor concrete layer is a flat surface; the non-woven fabric layer is arranged on the inner side surface of the spray anchor concrete layer; the waterproof plate is connected with the shotcrete layer through a bolt fixing structure; the first waterproof coating layer is arranged on the inner side surface of the non-woven fabric layer; the second waterproof coating layer is arranged in a longitudinal construction joint formed between the first molded concrete layer and the second molded concrete layer;
in the scheme, the problem that the inner side of the shotcrete layer is uneven can be solved by utilizing the non-woven fabric layer, the leveling effect of the base plane is realized, and the waterproof effect is enhanced; the waterproof board is fixed on spray anchor concrete layer, and the waterproof board combines first waterproof coating can be to the vertical waterproof effect that realizes on spray anchor concrete layer, utilizes second waterproof coating layer can realize abundant waterproof sealing function to the vertical construction joint between first mould concrete layer and the second mould concrete layer, has solved and has secretly dug the tunnel construction in the construction that the construction joint appears leaking in a large number, the problem of infiltration.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of a waterproof structure for a composite construction joint of a tunnel provided by the present invention;
fig. 2 is an enlarged schematic view of a point a in fig. 1.
In the figure: the concrete waterproof coating comprises, by weight, 1-a spray anchor concrete layer, 2-a non-woven fabric layer, 3-a waterproof board, 4-a first waterproof coating layer, 5-a second waterproof coating layer, 6-a first molded concrete layer, 7-a second molded concrete layer, 8-a bolt fixing structure, 81-a bolt, 82-an expansion water stop ring, 83-a nut and 9-a third waterproof coating layer.
Detailed Description
The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the application provides a compound construction joint waterproof construction in tunnel, mainly used is to the waterproof of the vertical construction joint in tunnel.
Specifically, as shown in fig. 1, the waterproof structure for the composite construction joint of the tunnel includes: the waterproof coating comprises a spray anchor concrete layer 1, a non-woven fabric layer 2, a waterproof board 3, a first waterproof coating layer 4, a second waterproof coating layer 5, a first molded concrete layer 6 and a second molded concrete layer 7;
the spray anchor concrete layer 1 is arranged on the inner side of the tunnel matrix, and the inner side surface of the spray anchor concrete layer 1 is a flat surface;
the non-woven fabric layer 2 is arranged on the inner side surface of the spray anchor concrete layer 1; the non-woven fabric layer 2 is arranged for filling the flatness of the inner side surface of the shotcrete layer 1;
the waterproof plate 3 is connected with the shotcrete layer 1 through a bolt fixing structure 8; the waterproof board 3 preferably adopts the EVA material, and its thickness is 1.5mm.
The first waterproof coating layer 4 is arranged on the inner side surface of the waterproof board 3, and the thickness of the first waterproof coating layer 4 is preferably 1.5mm.
The first molded concrete layer 6 is arranged on the inner side surface of the first waterproof coating layer 4;
the second waterproof coating layer 5 is arranged on the inner side surface of the first molded concrete layer 6, and the thickness of the second waterproof coating layer 5 is preferably 5mm;
and the second molded concrete layer 7 is arranged on the inner side surface of the first waterproof coating layer 4.
In the scheme, the non-woven fabric layer 2 can solve the problem that the inner side of the shotcrete layer 1 is uneven, so that the leveling effect of a base plane is realized and the waterproof effect is enhanced; the waterproof board 3 is fixed on spray anchor concrete layer 1, and waterproof board 3 combines first waterproof coating can be to the vertical waterproof effect that realizes of spray anchor concrete layer 1, utilizes second waterproof coating layer 5 can realize abundant waterproof sealing function to the vertical construction joint between first mould concrete layer 6 and the second mould concrete layer 7, has solved and has leaked in a large amount, the problem of infiltration in the construction joint in the tunnel construction of secretly digging.
In a preferred embodiment, the bolt fixing structure 8 comprises a bolt 81, an expansion water stop ring 82; the bolt 81 passes through the first waterproof coating layer 4, the waterproof board 3 and the non-woven fabric to be connected with the spray anchor concrete layer 1, and the expansion water stop ring 82 is fixed between the nut 83 and the first waterproof coating layer 4. The waterproof board 3, the non-woven fabric and the spray anchor concrete layer 1 can be tightly connected by the bolts 81, and meanwhile, the expansion water stop ring 82 can expand when water seeps into the gaps between the bolts 81 and the spray anchor concrete layer 1 to realize the plugging effect on the gaps.
In a preferred embodiment, the screw cap 83, the expansion water stop ring 82 and the first waterproof paint layer 4 are sealed by the third waterproof paint layer 9, and the sealing effect on the screw cap and the expansion water stop ring 82 can be enhanced by the third waterproof paint layer 9.
Further, the first waterproof coating layer 4, the second waterproof coating side layer 5 and the third waterproof coating layer 9 are rubber asphalt waterproof coatings. In practical application, a spray-coating quick-setting rubber asphalt waterproof paint finish disclosed in patent No. 202110082867.6 can be adopted, and the waterproof paint finish comprises: pearlescent pigment, resin, film forming assistant, defoaming agent, thixotropic agent, coupling agent, dispersant, flatting agent and the like. The waterproof material can be constructed at low temperature, is a novel waterproof material suitable for the industry of pumped storage power stations in water-rich severe cold areas, and has the characteristics of perfect coating, impact resistance, mechanical puncture resistance, aging resistance, high and low temperature resistance, strong adhesion, environmental friendliness, construction in winter and the like. Further enhancing the anti-seepage effect.
Finally, it should be noted that: the embodiments in the present description are all described in a progressive manner, each embodiment focuses on the differences from the other embodiments, and the same and similar parts among the embodiments can be referred to each other; the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the embodiments and features of the embodiments in the present application may be combined with each other without conflict. Such modifications, substitutions or combinations do not depart from the scope of the invention in its spirit or essential characteristics.
Claims (8)
1. The utility model provides a compound construction joint waterproof construction in tunnel for the waterproof of the vertical construction joint in tunnel, its characterized in that includes: the waterproof board comprises a spray anchor concrete layer, a non-woven fabric layer, a waterproof board, a first waterproof coating layer, a second waterproof coating layer, a first molded concrete layer and a second molded concrete layer;
the spray anchor concrete layer is arranged on the inner side of the tunnel matrix, and the inner side surface of the spray anchor concrete layer is a flat surface;
the non-woven fabric layer is arranged on the inner side surface of the spray anchor concrete layer;
the waterproof plate is connected with the shotcrete layer through a bolt fixing structure;
the first waterproof coating layer is arranged on the inner side surface of the waterproof board;
the first molded concrete layer is arranged on the inner side surface of the first waterproof coating layer;
the second waterproof coating layer is arranged on the inner side surface of the first molded concrete layer;
the second molded concrete layer is arranged on the inner side surface of the first waterproof coating layer;
and the first waterproof coating layer, the second waterproof coating side layer and the third waterproof coating layer are all sprayed with quick-setting rubber asphalt waterproof coating finish paint.
2. The waterproof structure of a composite construction joint for a tunnel of claim 1, wherein the waterproof board is made of EVA and has a thickness of 1.5mm.
3. The waterproof structure for a tunnel composite construction joint of claim 1, wherein the thickness of the first waterproof coating layer is 1.5mm.
4. The waterproof structure for composite construction joints of tunnels according to claim 3, wherein the thickness of the second waterproof paint layer is 5mm.
5. The waterproof structure for composite construction joints of tunnels according to claim 1, wherein the first waterproof coating layer and the second waterproof coating layer are rubber asphalt waterproof coatings.
6. The waterproof structure for tunnel composite construction joints according to claim 1, wherein the bolt fixing structure comprises a bolt, an expansion water stop ring; the bolt passes through first waterproof coating layer, waterproof board, non-woven fabrics and the spray anchor concrete layer is connected, the expansion seal ring is fixed between nut and first waterproof coating layer.
7. The waterproof structure for composite construction joints of tunnels according to claim 6, wherein the nuts, the expansion water stop rings and the first waterproof paint layer are sealed by a third waterproof paint layer.
8. The waterproof structure of a composite construction joint for a tunnel of claim 7, wherein the third waterproof coating layer is rubber asphalt waterproof coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222986464.7U CN218716858U (en) | 2022-11-10 | 2022-11-10 | Waterproof structure for composite construction joint of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222986464.7U CN218716858U (en) | 2022-11-10 | 2022-11-10 | Waterproof structure for composite construction joint of tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218716858U true CN218716858U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222986464.7U Active CN218716858U (en) | 2022-11-10 | 2022-11-10 | Waterproof structure for composite construction joint of tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218716858U (en) |
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2022
- 2022-11-10 CN CN202222986464.7U patent/CN218716858U/en active Active
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