Underground passage waterproofing system

Abstract

The utility model relates to an underground passage waterproof system structure, comprising: a protective structure, a concrete structure and an external waterproof structure, wherein two protective structures are arranged on both sides of the concrete structure and the external waterproof structure, and the external waterproof structure is arranged outside the concrete structure to ensure the safety, durability and use requirements of the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal engineering construction, in particular to an underground passage waterproof system structure. Background Art

[0002] With the rapid development of my country's economy and the improvement of residents' living standards, the current situation of urban traffic congestion has become an important factor restricting the sustainable development of urban economy. Utilizing underground space and building underground passages has become an effective way to alleviate urban traffic congestion. The waterproof system of underground passages directly affects the structural safety and use function of the project. Due to the changeable geological conditions, unreasonable structural design and concrete quality problems, underground passages leak; therefore, a waterproof system structure of underground passages is provided. Utility Model Content

[0003] The utility model aims to overcome the existing defects and provide an underground passage waterproof system structure to ensure the safety, durability and use requirements of the structure.

[0004] The technical solution to achieve the above purpose is:

[0005] The underground passage waterproof system structure comprises: a retaining structure, a concrete structure and an external waterproof structure. The two retaining structures are arranged on both sides of the concrete structure and the external waterproof structure, and the external waterproof structure is arranged outside the concrete structure.

[0006] Preferably, the enclosure structure is an underground continuous wall with a thickness of 850 mm.

[0007] Preferably, the concrete structure includes: a bottom plate, a side wall and a top plate, the two side walls are respectively arranged on the inner sides of the two enclosure structures, the lower ends of the two side walls are connected to one end of the bottom plate, the upper ends of the two side walls are connected to one end of the top plate, the side wall is arranged in the middle of the bottom plate and the top plate, the bottom plate, side wall and top plate are spliced ​​into an underground water channel, and there are three side walls in total.

[0008] Preferably, the bottom plate, side wall and top plate are made of high-performance concrete, in which high-performance water reducing agent and anti-cracking waterproofing agent are mixed, the anti-seepage grade is not lower than P8, and the thickness is not less than 250 mm.

[0009] Preferably, the outer waterproof structure includes: an outer waterproof structure of a bottom plate, an outer waterproof structure of a side wall and an outer waterproof structure of a top plate.

[0010] The bottom plate outer waterproof structure comprises: a concrete cushion layer, a first cement gel, a first waterproof roll material and a bottom plate concrete protective layer, and the concrete cushion layer, cement gel, the first waterproof roll material and the bottom plate concrete protective layer are sequentially arranged on the outside of the bottom plate;

[0011] The side wall outer waterproof structure comprises: a leveling layer and a second waterproofing membrane, and the leveling layer and the second waterproofing membrane are sequentially arranged on the outer sides of the side walls arranged on the inner sides of the two enclosure structures;

[0012] The roof external waterproof structure comprises: a second cement gel, a third waterproof membrane, an isolation layer and a roof concrete protective layer. The second cement gel, the third waterproof membrane, the isolation layer and the roof concrete protective layer are sequentially arranged on the outer side of the roof.

[0013] Preferably, the thickness of the concrete cushion layer is 150 mm, the thickness of the first cement gel is 1.5 mm, a cement-based penetrating crystalline waterproof material is used, the first waterproof membrane is an H-type reaction bonding polymer membrane-based wet-laid waterproof membrane, and the thickness of the base plate concrete protective layer is 50 mm fine stone concrete.

[0014] Preferably, the leveling layer is a cement mortar with a ratio of 1:2.5, and the second waterproof membrane is an H-type reaction-bonded polymer membrane-based wet-laid waterproof membrane.

[0015] Preferably, the second cement gel has a thickness of 1.5 mm and adopts a cement-based penetrating crystalline waterproof material. The third waterproof membrane is an H-type reaction-bonded polymer membrane-based wet-laid waterproof membrane. The isolation layer is a 300g / m2 composite geomembrane. The top plate concrete protective layer is a fine stone concrete with a thickness of 70 mm and is provided with a single row of bidirectional steel bars with a diameter of 8 mm and a spacing of 200 mm.

[0016] The beneficial effects of the utility model are: through the design of the enclosure structure, bottom plate, side wall and top plate, and the design of an external waterproof structure on the outside of the bottom plate, side wall and top plate, the leakage of the underground passage is reduced, the construction is convenient, and the safety, durability and use requirements of the structure are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the waterproof system structure of the underground passage of the utility model.

[0018] In the figure: 1. enclosure structure; 2. bottom plate; 3. side wall; 4. top plate; 5. concrete cushion layer; 6. first cement gel; 7. first waterproof membrane; 8. bottom plate concrete protective layer; 9. leveling layer; 10. second waterproof membrane; 11. second cement gel; 12. third waterproof membrane; 13. isolation layer; 14. top plate concrete protective layer. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] The utility model will be further described below in conjunction with the accompanying drawings.

[0021] like Figure 1 As shown, the underground passage waterproof system structure includes: a retaining structure 1, a concrete structure and an external waterproof structure. The two retaining structures 1 are arranged on both sides of the concrete structure and the external waterproof structure, and the external waterproof structure is arranged outside the concrete structure.

[0022] In the embodiment, the enclosure structure 1 is an underground continuous wall with a thickness of 850 mm.

[0023] In the embodiment, the concrete structure includes: a bottom plate 2, a side wall 3 and a top plate 4, the two side walls 3 are respectively arranged on the inner sides of the two enclosure structures 1, the lower ends of the two side walls 3 are connected to one end of the bottom plate 2, the upper ends of the two side walls 3 are connected to one end of the top plate 4, the side wall 3 is arranged in the middle position of the bottom plate 2 and the top plate 4, the bottom plate 2, the side wall 3 and the top plate 4 are spliced ​​into an underground water channel, and there are three side walls 3 in total.

[0024] In the embodiment, the bottom plate 2, the side wall 3 and the top plate 4 are high-performance concrete, in which a high-performance water reducing agent and an anti-cracking waterproofing agent are mixed, the anti-seepage grade is not lower than P8, and the thickness is not less than 250 mm.

[0025] In the embodiment, the external waterproof structure includes: a bottom plate external waterproof structure, a side wall external waterproof structure and a top plate external waterproof structure. The bottom plate external waterproof structure includes: a concrete cushion layer 5, a first cement gel 6, a first waterproof membrane 7 and a bottom plate concrete protective layer 8. The concrete cushion layer 5, the cement gel 6, the first waterproof membrane 7 and the bottom plate concrete protective layer 8 are sequentially arranged on the outer side of the bottom plate 2; the side wall external waterproof structure includes: a leveling layer 9 and a second waterproof membrane 10. The leveling layer 9 and the second waterproof membrane 10 are sequentially arranged on the outer side of the side wall 3 arranged on the inner side of the two enclosure structures 1; the top plate external waterproof structure includes: a second cement gel 11, a third waterproof membrane 12, an isolation layer 13 and a top plate concrete protective layer 14. The second cement gel 11, the third waterproof membrane 12, the isolation layer 13 and the top plate concrete protective layer 14 are sequentially arranged on the outer side of the top plate 4.

[0026] In the embodiment, the thickness of the concrete cushion layer 5 is 150 mm, the thickness of the first cement gel 6 is 1.5 mm, a cement-based penetrating crystalline waterproof material is adopted, the first waterproof membrane 7 is an H-type reaction bonding polymer membrane-based wet-laid waterproof membrane, and the bottom plate concrete protective layer 8 is 50 mm thick fine stone concrete; the leveling layer 9 is a cement mortar with a ratio of 1:2.5, and the second waterproof membrane 10 is an H-type reaction bonding polymer membrane-based wet-laid waterproof membrane; the thickness of the second cement gel 11 is 1.5 mm, and a cement-based penetrating crystalline waterproof material is adopted, the third waterproof membrane 12 is an H-type reaction bonding polymer membrane-based wet-laid waterproof membrane, the isolation layer 13 is a 300 g / m2 composite geomembrane, the top plate concrete protective layer 14 is a 70 mm thick fine stone concrete, and is provided with a single row of bidirectional steel bars with a diameter of 8 mm and a spacing of 200 mm.

[0027] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. Underground channel waterproof system structure, characterized in that: include: A retaining structure (1), a concrete structure and an external waterproof structure, wherein the two retaining structures (1) are arranged on both sides of the concrete structure and the external waterproof structure, and the external waterproof structure is arranged outside the concrete structure; The concrete structure comprises: a bottom plate (2), a side wall (3) and a top plate (4); the two side walls (3) are respectively arranged on the inner sides of the two enclosure structures (1); the lower ends of the two side walls (3) are connected to one end of each of the bottom plates (2); the upper ends of the two side walls (3) are connected to one end of each of the top plates (4); the side wall (3) is arranged in the middle of the bottom plate (2) and the top plate (4); the bottom plate (2), the side wall (3) and the top plate (4) are spliced ​​to form an underground water channel; and a total of three side walls (3) are arranged; The bottom plate (2), side wall (3) and top plate (4) are made of high-performance concrete, with an impermeability grade of not less than P8 and a thickness of not less than 250 mm; The external waterproof structure includes: a bottom plate external waterproof structure, a side wall external waterproof structure and a top plate external waterproof structure. The bottom plate outer waterproof structure comprises: a concrete cushion layer (5), a first cement gel (6), a first waterproof roll material (7) and a bottom plate concrete protective layer (8); the concrete cushion layer (5), the cement gel (6), the first waterproof roll material (7) and the bottom plate concrete protective layer (8) are sequentially arranged on the outer side of the bottom plate (2); The side wall outer waterproof structure comprises: a leveling layer (9) and a second waterproof coiled material (10), and the leveling layer (9) and the second waterproof coiled material (10) are sequentially arranged on the outer side of the side wall (3) arranged on the inner side of the two enclosure structures (1); The roof slab outer waterproof structure comprises: a second cement gel (11), a third waterproof coiled material (12), an isolation layer (13) and a roof slab concrete protective layer (14); the second cement gel (11), the third waterproof coiled material (12), the isolation layer (13) and the roof slab concrete protective layer (14) are sequentially arranged on the outer side of the roof slab (4); The second cement gel (11) has a thickness of 1.5 mm and is a cement-based permeable crystalline waterproof material. The third waterproof membrane (12) is an H-type reactive bonding polymer membrane-based wet-laid waterproof membrane. The isolation layer (13) is a 300 g / m2 composite geomembrane. The top plate concrete protective layer (14) is a 70 mm thick fine stone concrete and is provided with a single row of bidirectional steel bars with a diameter of 8 mm and a spacing of 200 mm.

2. The underground passage waterproof system structure according to claim 1 is characterized in that: The enclosure structure (1) is an underground continuous wall with a thickness of 850 mm.

3. The underground passage waterproof system structure according to claim 1, characterized in that: The concrete cushion layer (5) has a thickness of 150 mm, the first cement gel (6) has a thickness of 1.5 mm, and a cement-based permeable crystalline waterproof material is used. The first waterproof membrane (7) is an H-type reactive bonding polymer membrane-based wet-laid waterproof membrane. The bottom slab concrete protective layer (8) has a thickness of 50 mm and is made of fine stone concrete.

4. The underground passage waterproof system structure according to claim 1, characterized in that: The leveling layer (9) is a cement mortar with a ratio of 1:2.5, and the second waterproofing membrane (10) is an H-type reaction-bonded polymer membrane-based wet-laid waterproofing membrane.

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