CN219011319U - Waterproof structure for tunnel construction joint - Google Patents
Waterproof structure for tunnel construction joint Download PDFInfo
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- CN219011319U CN219011319U CN202222986466.6U CN202222986466U CN219011319U CN 219011319 U CN219011319 U CN 219011319U CN 202222986466 U CN202222986466 U CN 202222986466U CN 219011319 U CN219011319 U CN 219011319U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a waterproof structure of a tunnel construction joint, which comprises the following components: the waterproof coating comprises an anchor concrete layer, an isolating film layer, a first waterproof coating layer, a second waterproof coating layer, a molded concrete layer and a third waterproof coating 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 isolating film layer is arranged on the inner side surface of the spray anchor concrete layer; the first waterproof coating layer is arranged on the inner side surface of the isolation film layer; the second waterproof coating layer is arranged on the inner side surface of the first waterproof coating layer, and covers the annular construction joint in the molded concrete layer; the third waterproof coating layer is filled in the annular construction joint, through the structure, the construction joint can be fully waterproof and sealed, and the problems of water leakage and water seepage of the construction joint in the construction of the undercut tunnel are solved.
Description
Technical Field
The utility model relates to the technical field of tunnel waterproofing, in particular to a waterproof structure for a tunnel construction joint.
Background
In the tunnel construction process, due to the fact that 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 a construction joint. Because the junction surface formed by casting concrete in sequence is easy to have various hidden dangers and quality problems, different structural engineering needs to pay attention to the treatment of the construction joint. The leakage water of the tunnel and the underground engineering mainly occurs in the construction joint, so that how to implement effective waterproof measures on the construction joint is a technical problem to be solved at present.
Disclosure of Invention
An object of the application is to provide a tunnel construction joint waterproof construction to solve the problem that current tunnel construction joint leaked.
In a first aspect, the present application provides a tunnel construction joint waterproof construction, include: the concrete layer is sprayed and anchored, the isolating membrane layer, the first waterproof coating layer, the second waterproof coating layer, the molded concrete layer and the third waterproof coating 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 isolating film layer is arranged on the inner side surface of the spray anchor concrete layer;
the first waterproof coating layer is arranged on the inner side surface of the isolation film layer;
the second waterproof coating layer is arranged on the inner side surface of the first waterproof coating layer, and covers the annular construction joint in the molded concrete layer;
and the third waterproof paint layer is filled in the circumferential construction joint.
Further, the isolating film layer is a high-density polyethylene film compounded with non-woven fabrics.
Further, the thickness of the first waterproof paint layer is 1.5mm.
Further, the thickness of the second waterproof paint layer is 1.5mm.
Further, the thickness of the third waterproof paint layer is 5mm.
Further, the laying length of the second waterproof coating layer is 500mm, and the annular construction joint is located at the middle position of the second waterproof coating layer in the length direction.
In a second aspect, the application provides a tunnel, including foretell tunnel construction seam waterproof construction.
Adopt above-mentioned technical scheme, for prior art, the tunnel construction seam waterproof construction that this application provided has following technical effect:
the waterproof structure of the tunnel construction joint comprises an anchor concrete layer, an isolating film layer, a first waterproof coating layer, a second waterproof coating layer, a molded concrete layer and a third waterproof coating 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 isolating film layer is arranged on the inner side surface of the spray anchor concrete layer; the first waterproof coating layer is arranged on the inner side surface of the isolation film layer; the second waterproof coating layer is arranged on the inner side surface of the first waterproof coating layer, and covers the annular construction joint in the molded concrete layer; and a third waterproof paint layer is filled in the annular construction joint.
The inner side of the spray anchor concrete layer is paved with an isolation film layer, so that the problem of uneven inner side of the spray anchor concrete layer is further solved, the leveling effect of a base surface is realized, and the waterproof effect is enhanced; the first waterproof coating layer and the second waterproof coating layer are combined, the full-range waterproof effect of the spray anchor concrete layer can be achieved, and the second waterproof coating layer and the third waterproof coating layer are utilized to achieve a sufficient waterproof sealing function on the construction joint, so that the problems of large water leakage and water seepage of the construction joint in the construction of the undercut tunnel are solved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a waterproof structure for a tunnel construction joint provided by the utility model.
In the figure: 1-spraying an anchor concrete layer; 2-isolating film layer; 3-a first waterproof paint layer; 4-a second waterproof paint layer; 5-molding a concrete layer; 6-a third waterproof paint layer.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "center", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, a waterproof structure for a tunnel construction joint provided in an embodiment of the present application includes: an anchor concrete layer 1, a separation film layer 2, a first waterproof paint layer 3, a second waterproof paint layer 4, a molded concrete layer 5 and a third waterproof paint layer 6;
the spray anchor concrete layer 1 is arranged on the inner side of the tunnel matrix, and in the actual construction process, the inner side surface of the spray anchor concrete layer 1 is uneven, so that the inner side surface of the spray anchor concrete layer 1 needs to be trimmed to be a flat surface in order to ensure the subsequent construction and waterproof treatment;
the isolating membrane layer 2 is arranged on the inner side surface of the spray anchor concrete layer 1; the separator layer 2 may be a geomembrane, and the separator layer 2 may be a high-density polyethylene film (HDPE) with a nonwoven fabric composite.
The function of the isolation film layer 2 is that: on the one hand, the special requirement of the waterproof coating on the flatness of the base surface is reduced, meanwhile, as the isolation membrane layer 2 is fixed with the primary support at points, a certain gap exists between the isolation membrane layer 2 and the primary support, the gap can be used as a drainage channel for water seepage of the primary support, and the isolation membrane layer 2 and the waterproof coating are matched for use, so that the water prevention and the water drainage are realized simultaneously.
The first waterproof paint layer 3 is arranged on the inner side surface of the isolation film layer 2; plays a role in comprehensively preventing water of the spray anchor concrete layer 1;
the second waterproof paint layer 4 is arranged on the inner side surface of the first waterproof paint layer 3, and the second waterproof paint layer 4 covers the annular construction joint in the molded concrete layer 5; the waterproof effect is improved, and the problem of water leakage of the construction joint is effectively reduced.
In addition, the third waterproof paint layer 6 is filled in the circumferential construction joint.
In this embodiment, the first waterproof paint layer 3, the second waterproof paint layer 4 and the third waterproof paint layer 6 may be a spray-coated quick-setting rubber asphalt waterproof paint finish disclosed in patent number 202110082867.6, and the waterproof paint finish includes: pearlescent pigment, resin, film-forming auxiliary agent, defoamer, thixotropic agent, coupling agent, dispersant, leveling agent and the like. The waterproof material can be used for low-temperature construction, is a novel waterproof material suitable for water pumping and energy storage power station industry 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 protection, construction in winter and the like. Further enhancing the seepage-proofing effect.
In an alternative embodiment of the present application, the thickness of the first waterproof paint layer 3 is 1.5mm.
In an alternative embodiment of the present application, the thickness of the second waterproof paint layer 4 is 1.5mm.
In an alternative embodiment of the present application, the thickness of the third waterproof paint layer 6 is 5mm.
In an alternative embodiment of the present application, the laying length of the second waterproof paint layer 4 is 500mm, and the annular construction joint is located at a middle position in the length direction of the second waterproof paint layer 4.
In addition, the embodiment of the application provides a tunnel, and the tunnel comprises the tunnel construction joint waterproof structure.
Specifically, the tunnel comprises a tunnel matrix, and the anchor spraying concrete layer 1 in the waterproof structure of the tunnel construction joint is arranged on the tunnel matrix.
Adopt above-mentioned technical scheme, for prior art, tunnel construction seam waterproof construction and tunnel that this embodiment provided has following advantage at least:
the waterproof structure of the tunnel construction joint comprises an anchor concrete layer 1, an isolating film layer 2, a first waterproof paint layer 3, a second waterproof paint layer 4, a molded concrete layer 5 and a third waterproof paint layer 6;
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 isolating membrane layer 2 is arranged on the inner side surface of the spray anchor concrete layer 1; the first waterproof paint layer 3 is arranged on the inner side surface of the isolation film layer 2; the second waterproof paint layer 4 is arranged on the inner side surface of the first waterproof paint layer 3, and the second waterproof paint layer 4 covers the annular construction joint in the molded concrete layer 5; the third waterproof paint layer 6 is filled in the annular construction joint.
The inner side of the spray anchor concrete layer 1 is paved with an isolating film layer 2, so that the problem of uneven inner side of the spray anchor concrete layer 1 is further solved, the leveling effect of a base surface is realized, and the waterproof effect is enhanced; the first waterproof coating layer 3 and the second waterproof coating layer 4 are combined, the full-range waterproof effect of the spray anchor concrete layer 1 can be realized, and the second waterproof coating layer 4 and the third waterproof coating layer 6 are utilized to realize the full waterproof sealing function on the construction joint, so that the problems of large water leakage and water seepage of the construction joint in the construction of the undercut tunnel are solved.
Finally, it should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are only required to be seen with each other; the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; embodiments and features of embodiments in this application may be combined with each other without conflict. Such modifications, substitutions and combinations do not depart from the spirit of the utility model.
Claims (6)
1. The utility model provides a tunnel construction seam waterproof construction which characterized in that includes: the concrete layer is sprayed and anchored, the isolating membrane layer, the first waterproof coating layer, the second waterproof coating layer, the molded concrete layer and the third waterproof coating 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 isolating film layer is arranged on the inner side surface of the spray anchor concrete layer;
the first waterproof coating layer is arranged on the inner side surface of the isolation film layer;
the second waterproof coating layer is arranged on the inner side surface of the first waterproof coating layer, and covers the annular construction joint in the molded concrete layer;
the third waterproof paint layer is filled in the circumferential construction joint;
the first waterproof coating layer, the second waterproof coating layer and the third waterproof coating layer are all sprayed with quick-setting rubber asphalt waterproof coating finish paint.
2. The waterproof structure for tunnel construction joints according to claim 1, wherein the isolating film layer is a high-density polyethylene film compounded with non-woven fabrics.
3. The tunnel construction joint waterproof structure according to claim 1, wherein the thickness of the first waterproof paint layer is 1.5mm.
4. The tunnel construction joint waterproof structure according to claim 1, wherein the thickness of the second waterproof paint layer is 1.5mm.
5. The tunnel construction joint waterproof structure according to claim 1, wherein the thickness of the third waterproof paint layer is 5mm.
6. The tunnel construction joint waterproof structure according to claim 1, wherein the laying length of the second waterproof paint layer is 500mm, and the circumferential construction joint is located at a middle position in the length direction of the second waterproof paint layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222986466.6U CN219011319U (en) | 2022-11-10 | 2022-11-10 | Waterproof structure for tunnel construction joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222986466.6U CN219011319U (en) | 2022-11-10 | 2022-11-10 | Waterproof structure for tunnel construction joint |
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| Publication Number | Publication Date |
|---|---|
| CN219011319U true CN219011319U (en) | 2023-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222986466.6U Active CN219011319U (en) | 2022-11-10 | 2022-11-10 | Waterproof structure for tunnel construction joint |
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| Country | Link |
|---|---|
| CN (1) | CN219011319U (en) |
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2022
- 2022-11-10 CN CN202222986466.6U patent/CN219011319U/en active Active
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