CN212271019U - Open cut underground works bottom plate and side wall overlap joint waterproof construction - Google Patents
Open cut underground works bottom plate and side wall overlap joint waterproof construction Download PDFInfo
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- CN212271019U CN212271019U CN202020577983.6U CN202020577983U CN212271019U CN 212271019 U CN212271019 U CN 212271019U CN 202020577983 U CN202020577983 U CN 202020577983U CN 212271019 U CN212271019 U CN 212271019U
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Abstract
The utility model relates to an open cut underground works waterproof technology field specifically discloses an open cut underground works bottom plate and side wall overlap joint waterproof construction, there is the pea gravel concrete structure bottom plate lower part, there is polymer modified asphalt self-adhesion coiled material below the pea gravel concrete, there is the bed course polymer modified asphalt self-adhesion coiled material lower part, polymer modified asphalt self-adhesion coiled material extends to the bed course outside and hot melt overlap joint is in the root of structure side wall, the outside spraying non-curing rubber asphalt waterproof coating of structure side wall root, composite geomembrane is spread on the surface of non-curing rubber asphalt waterproof coating, the surface spraying of composite geomembrane and structure side wall has the acrylate waterproof layer, there is polyethylene foam board protective layer on the surface of acrylate waterproof layer; the utility model discloses an open cut underground works bottom plate and side wall overlap joint waterproof construction have and connect closely, seamless, characteristics that water-proof effects is good.
Description
Technical Field
The utility model relates to an open cut underground works waterproof technical field specifically is an open cut underground works bottom plate and side wall overlap joint waterproof construction.
Background
In recent years, underground spaces have been developed more and more comprehensively, and the construction method can be simply divided into an open excavation method and a closed excavation method. The underground excavation method mainly builds mountain tunnels such as highways and railway tunnels, and the open excavation method relates to more engineering types such as urban underground comprehensive pipe galleries, subway stations and urban underpass tunnels.
The technical problem in the prior art is that in the open cut underground engineering construction process, waterproof materials are mainly selected from single asphalt waterproof coiled materials or high-molecular self-adhesive coiled materials, and the joint of a bottom plate and a side wall is subjected to joint throwing process treatment.
In order to solve the problems, the application provides an open cut underground engineering bottom plate and side wall lap joint waterproof structure.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides an open cut underground works bottom plate and side wall overlap joint waterproof construction has and connects closely, seamless, characteristics that water-proof effects is good.
Technical scheme
In order to solve the problems, the utility model provides an open cut underground engineering bottom plate and side wall lap joint waterproof structure, which comprises a structure body, wherein the structure body comprises a structure bottom plate, a structure side wall and a structure top plate, fine aggregate concrete is poured at the lower part of the structure bottom plate, a polymer modified asphalt self-adhesive coiled material is laid below the fine aggregate concrete, a cushion layer is poured at the lower part of the polymer modified asphalt self-adhesive coiled material, the polymer modified asphalt self-adhesive coiled material extends to the outside of the cushion layer and is in hot melting lap joint at the root part of the structure side wall, non-cured rubber asphalt waterproof paint is sprayed at the outer side of the root part of the structure side wall, a composite geomembrane is laid on the surface of the non-cured rubber asphalt waterproof paint, an acrylate waterproof layer is sprayed on the surfaces of the composite geomembrane and the structure side wall, the surface spraying of structure roof has the acrylate waterproof layer, the surface of acrylate waterproof layer is equipped with the isolation layer, the fine aggregate concrete has been laid on the surface of isolation layer, the surface of fine aggregate concrete is laid there is plain soil and is backfilled.
Further, the thickness of the polymer modified asphalt self-adhesive coiled material is 4mm, and the polymer modified asphalt self-adhesive coiled material is used in lap joint with the structural side wall.
Furthermore, the polymer modified asphalt self-adhesive coiled material is constructed in a hot melting mode.
Further, the application height of the non-cured rubber asphalt waterproof coating is larger than the height of the polymer modified asphalt self-adhesive coiled material for transition to the lap joint of the structure side wall, and the application height is 300 mm.
Further, the covering height of the composite geomembrane is consistent with that of the non-cured rubber asphalt waterproof coating.
Further, the acrylate waterproof layer extends to the structure side wall along the surface of the composite geomembrane.
Compared with the prior art, the beneficial effects of the utility model are that: after the maintenance of the structural body is finished, the polymer modified asphalt self-adhesive coiled material reserved on the cushion layer is adhered to the root part of the structural side wall by adopting a hot melting process, the waterproof coiled material is required to be closely adhered to the concrete base surface without hollowing, the tightness is enhanced, meanwhile, the polymer modified asphalt self-adhesive coiled material on the structural side wall is in a hot melting mode, the asphalt adhesive layer is exposed, and a blade coating or spraying mode is adopted to apply the non-cured rubber asphalt waterproof coating, because the polymer modified asphalt self-adhesive coiled material and the asphalt base waterproof coating both belong to asphalt base waterproof materials, the compatibility is good, the height of the non-cured rubber asphalt waterproof coating is larger than that of the waterproof coiled material, as waterproof transition, a composite geomembrane is laid on the surface of the non-cured rubber asphalt waterproof coating, because the composite geomembrane adopts a filament composite geomembrane with two fabrics and one membrane, one non-woven fabric, and after the preorder work is finished, spraying an acrylate waterproof layer on the surface of the composite geomembrane, wherein the position is a node part, the acrylic waterproof layer is reinforced and extends to the structure side wall along the surface of the composite geomembrane, and the waterproof layer of the structure side wall is continuously applied to form a stable, continuous and seamless waterproof layer, so that the waterproof effect is good, and the condition of water leakage is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals:
1. a structural floor; 2. a structural side wall; 3. a structural roof; 4. a cushion layer; 5. a polymer modified asphalt self-adhesive coiled material; 6. fine stone concrete; 7. non-curing rubber asphalt waterproof paint; 8. compounding the geomembrane; 9. an acrylate water-proof layer; 10. a polyethylene foam sheet protective layer; 11. an isolation layer; 12. and backfilling plain soil.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1, the present invention provides a technical solution: an open cut underground works bottom plate and side wall overlap joint waterproof construction, includes the structure body, the structure body includes structure bottom plate 1, structure side wall 2 and structure roof 3, the pouring of 1 sub-unit of structure bottom plate is equipped with pea gravel concrete 6, polymer modified asphalt self-adhesion coiled material 5 has been laid below pea gravel concrete 6, the pouring of 5 sub-units of polymer modified asphalt self-adhesion coiled material has bed course 4, polymer modified asphalt self-adhesion coiled material 5 extends to the outside of bed course 4 and hot melt overlap joint is at the root of structure side wall 2, the outside at structure side wall 2 root sprays non-curing rubber pitch waterproof coating 7, compound geomembrane 8 has been laid on the surface of non-curing rubber pitch waterproof coating 7, the surface spraying of compound geomembrane 8 and structure 2 has acrylate side wall waterproof layer 9, the surface of acrylate waterproof layer 9 is equipped with polyethylene foam board protective layer 10, the surface spraying of structure roof 3 has acrylate waterproof layer 9, the surface of acrylate waterproof layer 9 is equipped with isolation layer 11, pea gravel concrete 6 has been laid on the surface of isolation layer 11, pea gravel concrete 6's surface is laid with plain soil and is backfilled 13.
Further, the thickness of the polymer modified asphalt self-adhesive coiled material 5 is 4mm, and the polymer modified asphalt self-adhesive coiled material 5 and the structure side wall 2 are used in an overlapping mode.
Further, the polymer modified asphalt self-adhesive coiled material 5 is constructed in a hot melting mode.
Further, the application height of the non-cured rubber asphalt waterproof coating 7 is larger than the height of the transition from the polymer modified asphalt self-adhesive coiled material 5 to the lap joint of the structure side wall 2, and the application height is 300 mm.
Further, the covering height of the composite geomembrane 8 is consistent with that of the non-cured rubber asphalt waterproof coating 7.
Further, the acrylate waterproof layer 9 extends to the structure side wall 2 along the surface of the composite geomembrane 8.
The working principle is as follows: as an example, the thickness of the fine gravel concrete 6 in this embodiment is 50cm to 70cm, and the fine gravel concrete 6 generally refers to concrete with a maximum particle size of coarse aggregate not greater than 15mm, so as to ensure good compactness of the concrete and improve the surface quality of the concrete. Surface bubbles or honeycomb pitted surface can not appear, and surface repair is not needed;
in the embodiment, the polymer modified asphalt self-adhesive coiled material 5 is a high polymer modified asphalt waterproof coiled material, synthetic high polymer modified asphalt is used as a coating layer, a fiber fabric or a fiber felt is used as a matrix, a powdery, granular, flaky or thin-film material is used as a coating material to prepare a curled flaky material, the thickness of the flaky material is generally 3mm, 4mm or 5mm, and an asphalt base is used as a main body;
in the embodiment, the non-cured rubber asphalt waterproof coating 7 is a waterproof coating which is prepared by taking rubber and asphalt as main components and adding an auxiliary agent to be mixed and keeps a viscous paste body within the service life, has a remarkable effect on waterproof treatment of special parts such as deformation joints of building engineering and is widely used in non-exposed building waterproof engineering;
in the embodiment, the acrylate waterproof layer 9 is made of acrylate film-spraying waterproof material, the acrylate film-spraying waterproof material is a novel waterproof material applied to subways, urban underground comprehensive pipe galleries, tunnels and underground engineering, the material is uniform in quality, has excellent performances of one-time integral film forming, self-healing when meeting water, environmental protection, flame retardance and the like, and is intended to solve the problem of water leakage caused by the use of the traditional waterproof material for underground engineering;
in the embodiment, the composite geomembrane 8 is formed by two cloth films and one film, the physical and mechanical performance indexes such as tensile strength, tear resistance and bursting are high, and the product has the characteristics of high strength, better extensibility, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance, good seepage resistance and the like. The requirements of civil engineering such as seepage prevention, isolation, reinforcement, crack prevention and reinforcement and the like in water conservancy, municipal administration, buildings, traffic, subway, tunnel and engineering construction can be met;
after the maintenance of the structural body is finished, the polymer modified asphalt self-adhesive coiled material 5 reserved on the cushion layer 4 is adhered to the root of the structural side wall 2 by adopting a hot melting process, the close adhesion between the polymer modified asphalt self-adhesive coiled material 5 and the structural side wall 2 needs to be ensured, no void exists, the tightness is enhanced, the polymer modified asphalt self-adhesive coiled material 5 on the structural side wall 2 adopts a hot melting mode, an asphalt adhesive layer is exposed, a blade coating or spraying mode is adopted to apply the non-cured rubber asphalt waterproof coating 7, the two materials both belong to asphalt-based waterproof materials and have good compatibility, the height of the non-cured rubber asphalt waterproof coating 7 is greater than that of the polymer modified asphalt self-adhesive coiled material 5, as waterproof transition, a composite geomembrane 8 is laid on the surface of the non-cured rubber asphalt waterproof coating 7, and because the composite geomembrane 8 adopts a filament composite geomembrane with two fabrics, one surface of the non-woven fabric of the composite geomembrane 8 can form And the other side can be used as a construction base surface to reduce the condition of debonding, after the preorder work is finished, an acrylate waterproof layer 9 is sprayed on the surface of the composite geomembrane 8, and because the position is a node part, the position is reinforced and extends to the surface of the structure side wall 2 along the surface of the composite geomembrane 8, the waterproof layer of the structure side wall 2 is continuously constructed, so that a stable, continuous and seamless waterproof layer is formed, the waterproof effect is good, and the condition of water leakage is reduced; lay polyethylene foam board protective layer 10 on acrylate waterproof layer 9, at the surface spraying acrylate waterproof layer 9 of structure roof 3, carry out first waterproof, play the effect of keeping apart through isolation layer 11, protect, closely knit work laying pea gravel concrete 12, carry out plain soil backfill 12 at last.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. The open cut underground engineering bottom plate and side wall lap joint waterproof structure comprises a structure body and is characterized in that the structure body comprises a structure bottom plate (1), a structure side wall (2) and a structure top plate (3), wherein fine aggregate concrete (6) is poured on the lower portion of the structure bottom plate (1), polymer modified asphalt self-adhesive coiled materials (5) are paved below the fine aggregate concrete (6), a cushion layer (4) is poured on the lower portion of the polymer modified asphalt self-adhesive coiled materials (5), the polymer modified asphalt self-adhesive coiled materials (5) extend to the outside of the cushion layer (4) and are in hot melting lap joint at the root portion of the structure side wall (2), non-cured rubber asphalt waterproof coatings (7) are sprayed on the outer side of the root portion of the structure side wall (2), composite geomembranes (8) are paved on the surface of the non-cured rubber asphalt waterproof coatings (7), and acrylate waterproof layers (9) are sprayed on the surfaces of the composite geomembrane (8), the surface of acrylate waterproof layer (9) is equipped with polyethylene cystosepiment protective layer (10), the surface spraying of structure roof (3) has acrylate waterproof layer (9), the surface of acrylate waterproof layer (9) is equipped with isolation layer (11), graticule concrete (6) have been laid on the surface of isolation layer (11), the surface of graticule concrete (6) is laid there is plain soil and is backfilled (13).
2. The open cut underground works bottom plate and side wall overlap joint waterproof construction of claim 1, characterized in that: the thickness of the polymer modified asphalt self-adhesive coiled material (5) is 4mm, and the polymer modified asphalt self-adhesive coiled material (5) is lapped with the structure side wall (2) for use.
3. The open cut underground works bottom plate and side wall overlap joint waterproof construction of claim 1, characterized in that: the polymer modified asphalt self-adhesive coiled material (5) is constructed in a hot melting mode.
4. The open cut underground works bottom plate and side wall overlap joint waterproof construction of claim 1, characterized in that: the construction height of the non-cured rubber asphalt waterproof coating (7) is greater than the height of the polymer modified asphalt self-adhesive coiled material (5) which is transited to the lap joint of the structure side wall (2), and the construction height is 300 mm.
5. The open cut underground works bottom plate and side wall overlap joint waterproof construction of claim 1, characterized in that: the covering height of the composite geomembrane (8) is consistent with the height of the non-cured rubber asphalt waterproof coating (7).
6. The open cut underground works bottom plate and side wall overlap joint waterproof construction of claim 1, characterized in that: the acrylate waterproof layer (9) extends to the structure side wall (2) along the surface of the composite geomembrane (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020577983.6U CN212271019U (en) | 2020-04-17 | 2020-04-17 | Open cut underground works bottom plate and side wall overlap joint waterproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020577983.6U CN212271019U (en) | 2020-04-17 | 2020-04-17 | Open cut underground works bottom plate and side wall overlap joint waterproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212271019U true CN212271019U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020577983.6U Active CN212271019U (en) | 2020-04-17 | 2020-04-17 | Open cut underground works bottom plate and side wall overlap joint waterproof construction |
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| Country | Link |
|---|---|
| CN (1) | CN212271019U (en) |
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- 2020-04-17 CN CN202020577983.6U patent/CN212271019U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 905, building 6, No. 655, Jiujing Road, Jiuting Town, Songjiang District, Shanghai Patentee after: Shanghai wuyushu New Material Technology Co.,Ltd. Address before: 200000 7th floor, 137 Haining Road, Hongkou District, Shanghai Patentee before: SHANGHAI YUYI NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221017 Address after: Room 905, building 6, No. 655, Jiujing Road, Jiuting Town, Songjiang District, Shanghai Patentee after: Shanghai wuyushu New Material Technology Co.,Ltd. Patentee after: CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP Co.,Ltd. Address before: Room 905, building 6, No. 655, Jiujing Road, Jiuting Town, Songjiang District, Shanghai Patentee before: Shanghai wuyushu New Material Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |