Waterproof structure of underground main body structure

Abstract

The utility model provides a waterproof structure of an underground main body structure, and belongs to the technical field of underground engineering construction. The waterproof structure comprises a bottom waterproof unit, a side waterproof unit and a top waterproof unit, wherein the bottom waterproof unit comprises a supporting structure layer, a first waterproof spraying layer, a first waterproof coiled material layer, a second waterproof coiled material layer and a bottom protection layer which are sequentially arranged from outside to inside; forming components which are longitudinally and continuously arranged are arranged on the supporting structure layer and located at the supporting longitudinal beams, each forming component is provided with a first connecting plate right facing the bottom face of the corresponding supporting longitudinal beam, second connecting plates are symmetrically arranged at the two ends of each first connecting plate, and third connecting plates are arranged at the ends, away from the first connecting plates, of the second connecting plates; a first arc-shaped connecting part is arranged at the connecting position of the first connecting plate and the second connecting plate, and a second arc-shaped connecting part is arranged between the second connecting plate and the third connecting plate; the waterproof structure is used for solving the technical problem that an existing waterproof structure is prone to cracking at the position of a supporting longitudinal beam.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground engineering construction, and in particular relates to a waterproof structure of an underground main structure. Background Art

[0002] Subway waterproofing is an important part of subway construction quality. The quality of waterproofing is related to the usability, durability and safety of the subway, which requires the subway to have good waterproof performance.

[0003] like Figure 1 The figure shows a schematic diagram of the main structure of the subway station. The main structure is a two-story underground double-span box-shaped frame structure, which has a bottom plate 1, side walls 2 and top plate 3 that are cast in one piece. Among them, the bottom plate 1 is provided with a supporting longitudinal beam 101 protruding outward in order to ensure the supporting performance. The construction of the bottom plate part requires the construction of the waterproof part first. After the construction is completed, the main body of the bottom plate is cast on the waterproof part. Since the protruding part of the supporting longitudinal beam has a delicate structure, the waterproof part needs to be bent at right angles for many times to finally form a shape that matches the protruding part of the supporting longitudinal beam. Due to the multiple right-angle bends of the waterproof part, it is easy to cause the waterproof layer of this part to break, reducing the waterproof performance of the waterproof structure.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof structure of an underground main structure to solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the waterproof structure of the underground main structure of the utility model provides the following technical solutions:

[0007] A waterproof structure of an underground main structure, the underground main structure has a bottom plate located at the bottom, a supporting longitudinal beam is longitudinally extended at the bottom of the bottom plate, a side wall is extended upward at the top of the bottom plate, a top plate is arranged on the top of the side wall, the waterproof structure of the underground main structure includes a bottom waterproof unit arranged on the outside of the bottom plate, a side waterproof unit arranged on the outside of the side wall and a top waterproof unit arranged on the outside of the top plate, the bottom waterproof unit includes a supporting structure layer, a first waterproof spray coating layer, a first waterproof roll material layer, a second waterproof roll material layer and a bottom protective layer arranged in sequence from the outside to the inside;

[0008] The supporting structure layer is provided with a longitudinally continuously arranged forming component at the position of the supporting longitudinal beam, the forming component has a first connecting plate for facing the bottom surface of the supporting longitudinal beam, the first connecting plate is symmetrically provided with a second connecting plate at both ends, and the second connecting plate is provided with a third connecting plate parallel to the first connecting plate at one end away from the first connecting plate, and the third connecting plate extends in a direction away from the supporting longitudinal beam;

[0009] The first connecting plate and the second connecting plate form a groove for covering the protruding part of the supporting longitudinal beam, a first arc-shaped connecting portion is provided at the connecting position of the first connecting plate and the second connecting plate, and a second arc-shaped connecting portion is provided between the second connecting plate and the third connecting plate.

[0010] As a further optimized technical solution, the center of the first arc-shaped connecting portion is arranged inside the groove, and the center of the second arc-shaped connecting portion is arranged outside the groove.

[0011] As a further optimized technical solution, each of the molding components is provided with at least two fixing components, and the fixing components are arranged on the first connecting plate and are used for fixing and installing the molding components.

[0012] As a further optimized technical solution, the fixing component is a fixing nail, and the fixing nail has a head and a rod portion that are integrally connected, and the rod portion is used to pass through the first connecting plate.

[0013] As a further optimized technical solution, the first connecting plate has a recessed groove for accommodating the head.

[0014] As a further optimized technical solution, the shape of the sinking groove is adapted to the shape of the head, and after the fixing nail is installed, the head is completely sunk into the sinking groove.

[0015] As a further optimized technical solution, the side waterproof unit includes, from the outside to the inside, a retaining structure layer, a leveling layer, a third waterproof membrane layer, a fourth waterproof membrane layer and a protective layer which are arranged in sequence.

[0016] As a further optimized technical solution, the first waterproof spray coating layer is a polyurethane waterproof coating layer, and the thickness of the polyurethane waterproof coating layer is 1.5cm-5.5cm.

[0017] As a further optimized technical solution, the bottom protective layer is a fine stone concrete layer, and the thickness of the fine stone concrete layer is 7cm-9cm.

[0018] As a further optimized technical solution, a step-type connection structure is provided on a side of the third connection plate away from the second connection plate, and the shape of the connection position between the support structure layer and the third connection plate is adapted to the connection structure.

[0019] Beneficial effect: In the present application, when constructing the bottom waterproof unit, a row of molded components are first laid at the supporting longitudinal beam position of the supporting structure layer. Due to the shape characteristics of the molded components, a first arc-shaped connecting portion is provided at the connecting position between the first connecting plate and the second connecting plate, and a second arc-shaped connecting portion is provided between the second connecting plate and the third connecting plate. This makes it unnecessary for the waterproof membrane to be bent at right angles multiple times when being laid at this position again, but it is laid through an arc-shaped transition bending between the first arc-shaped connecting portion and the second arc-shaped connecting portion, thereby effectively ensuring the durability of the waterproof structure. Compared with right-angle bending, the waterproof structure is less likely to break, thereby ensuring the waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0021] Figure 1 This is a schematic diagram of the main structure of the subway station;

[0022] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of a forming component according to an embodiment of the utility model;

[0024] Figure 4 for Figure 2 A magnified schematic diagram of part A;

[0025] Figure 5 for Figure 2 Schematic diagram of the enlarged portion B.

[0026] In the figure: 1, bottom plate; 101, supporting longitudinal beam; 2, side wall; 201, construction joint; 3, top plate; 4, bottom waterproof unit; 401, supporting structure layer; 402, first waterproof spray layer; 403, first waterproof membrane layer; 404, second waterproof membrane layer; 405, bottom protective layer; 5, side waterproof unit; 501, enclosure structure layer; 502, leveling layer; 503, third waterproof membrane layer; 504, fourth waterproof membrane layer; 505, protective layer; 6, top waterproof unit; 7, forming component; 701, first connecting plate; 7011, sink; 702, second connecting plate; 703, third connecting plate; 7031, connecting structure; 704, first arc-shaped connecting part; 705, second arc-shaped connecting part; 8, fixing component; 9, waterstop; 10, waterstop strip. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0028] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0030] The utility model provides a waterproof structure of an underground main structure, which mainly increases the durability of the overall waterproof structure and ensures the waterproof effect by improving the construction structure of a bottom waterproof unit outside a bottom plate.

[0031] It should be noted that this embodiment uses a subway station as an example to illustrate the underground main structure. In other embodiments, the underground main structure may also be other underground engineering structures.

[0032] like Figure 2-5 For details, see Figure 2 The underground main structure has a bottom plate 1 located at the bottom, a supporting longitudinal beam 101 is longitudinally extended at the bottom of the bottom plate 1, a side wall 2 is extended upward at the top of the bottom plate 1, and a top plate 3 is arranged on the top of the side wall 2. The waterproof structure of the underground main structure includes a bottom waterproof unit 4 arranged on the outside of the bottom plate 1, a side waterproof unit 5 arranged on the outside of the side wall 2, and a top waterproof unit 6 arranged on the outside of the top plate 3.

[0033] The bottom waterproof unit 4 includes a supporting structure layer 401, a first waterproof spray coating layer 402, a first waterproof roll material layer 403, a second waterproof roll material layer 404 and a bottom protective layer 405 arranged in sequence from the outside to the inside. Among them, the supporting structure layer 401 is cast by concrete. The first waterproof spray coating layer 402 is mainly painted with waterproof material. In this embodiment, the first waterproof spray coating layer 402 is a polyurethane waterproof coating layer, and the thickness of the polyurethane waterproof coating layer is 1.5cm-5.5cm.

[0034] The first waterproofing membrane layer 403 and the second waterproofing membrane layer 404 are self-adhesive polymer modified asphalt waterproofing membranes respectively.

[0035] The supporting structure layer 401 is provided with longitudinally continuously arranged forming components 7 at the position of the supporting longitudinal beam 101, and the forming components 7 have a first connecting plate 701 for facing the bottom surface of the supporting longitudinal beam 101, and second connecting plates 702 are symmetrically arranged at both ends of the first connecting plate 701, and the extension line of the second connecting plate 702 is perpendicular to the first connecting plate 701. The end of the second connecting plate 702 away from the first connecting plate 701 is provided with a third connecting plate 703 parallel to the first connecting plate 701, and the third connecting plate 703 extends in the direction away from the supporting longitudinal beam 101, so as to facilitate docking with the supporting structure layer 401 at other positions.

[0036] like Figure 3 As shown, the first connecting plate 701 and the second connecting plate 702 enclose a groove for covering the protruding portion of the supporting longitudinal beam 101, a first arc-shaped connecting portion 704 is provided at the connecting position between the first connecting plate 701 and the second connecting plate 702, and a second arc-shaped connecting portion 705 is provided between the second connecting plate 702 and the third connecting plate 703.

[0037] By providing the first arc-shaped connecting portion 704 and the second arc-shaped connecting portion 705, when the waterproof membrane is laid in the subsequent construction, the circular arc of the waterproof membrane is naturally bent and transitions through the position of the supporting longitudinal beam 101, thereby enhancing the service life of the overall waterproof structure.

[0038] In this embodiment, the center of the first arc-shaped connecting portion 704 is set inside the groove, and the center of the second arc-shaped connecting portion 705 is set outside the groove. This arrangement directly increases the volume of the groove compared to the existing structure, thereby facilitating the construction of a waterproof structure in the groove, and the waterproof structure can be thickened in the groove to enhance the protection of the supporting longitudinal beam 101 at this position.

[0039] like Figure 4As shown, in order to facilitate the laying of the forming components 7 in the foundation pit of the main construction structure, at least two fixing components 8 are provided on each forming component 7, and the fixing components 8 are provided on the first connecting plate 701. In this embodiment, the fixing component 8 is a fixing nail, and the fixing nail has a head and a rod connected in one piece, and the rod is used to pass through the first connecting plate 701. In this way, when laying the forming components 7, the forming components 7 can be laid first, and then the forming components 7 can be further fixed by using the fixing nails. Thereby, the integrity of the forming components 7 and the supporting structure layer 401 at other positions is increased, and the firmness of the laying of the forming components 7 is ensured.

[0040] During the installation of the fixing nail, if the head of the fixing nail protrudes from the top surface of the first connecting plate 701, it will affect the subsequent laying of the waterproof membrane. In order to solve this problem, a sinking groove 7011 for accommodating the head is processed on the first connecting plate 701. Preferably, the shape of the sinking groove 7011 is adapted to the shape of the head, and after the fixing nail is installed, the head is completely sunk into the sinking groove 7011. In other embodiments, the overall volume of the sinking groove 7011 can also be greater than the volume of the head.

[0041] Furthermore, if Figure 5 As shown, the side waterproof unit 5 includes, from outside to inside, a protective structure layer 501, a leveling layer 502, a third waterproof roll layer 503, a fourth waterproof roll layer 504, and a protective layer 505. In this embodiment, the third waterproof roll layer 503 and the fourth waterproof roll layer 504 are also self-adhesive polymer modified asphalt waterproof rolls.

[0042] Furthermore, the bottom protective layer 405 is a fine stone concrete layer, and the thickness of the fine stone concrete layer is 7 cm-9 cm.

[0043] Furthermore, a step-type connection structure 7031 is provided on one side of the third connection plate 703 away from the second connection plate 702, and the shape of the connection position between the support structure layer 401 and the third connection plate 703 is adapted to the connection structure 7031. In this way, when constructing the entire support structure layer 401, the molding component 7 and other positions of the support structure layer 401 can be integrally cast through the connection structure 7031, and at this time, the step-type connection structure 7031 can increase the connection strength between the molding component 7 and the support structure layer 401.

[0044] Furthermore, since the overall main structure is relatively large, it needs to be cast and formed multiple times. Multiple castings will form a construction joint 201 on the side wall 2. In order to further ensure the waterproof performance of the construction joint 201, the side waterproof unit 5 also includes a construction joint waterproof component, which includes a construction joint 201, a water stop belt 9 and a water stop strip 10. In this embodiment, the construction joint 201 is all inclined and gradually tilted upward from the outside to the inside. This arrangement not only extends the water inlet path, but also makes it difficult for external groundwater to enter the main structure. The water stop belt 9 is set through the construction joint 201, and the water stop belt 9 is set vertically. The water stop strip 10 is set on the outside of the water stop belt 9 to further prevent the entry of groundwater.

[0045] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A waterproof structure of an underground main structure, the underground main structure comprising a bottom plate (1) located at the bottom, a supporting longitudinal beam (101) extending longitudinally at the bottom of the bottom plate (1), a side wall (2) extending upwardly at the top of the bottom plate (1), a top plate (3) being arranged on the top of the side wall (2), the waterproof structure of the underground main structure comprising a bottom waterproof unit (4) arranged on the outside of the bottom plate (1), a side waterproof unit (5) arranged on the outside of the side wall (2), and a top waterproof unit (6) arranged on the outside of the top plate (3), characterized in that: The bottom waterproof unit (4) comprises, from the outside to the inside, a supporting structure layer (401), a first waterproof spray layer (402), a first waterproof coiled material layer (403), a second waterproof coiled material layer (404) and a bottom protective layer (405) which are arranged in sequence; The support structure layer (401) is provided with longitudinally continuously arranged molding components (7) at the position of the support longitudinal beam (101), the molding components (7) having a first connecting plate (701) for facing the bottom surface of the support longitudinal beam (101), second connecting plates (702) being symmetrically arranged at both ends of the first connecting plate (701), a third connecting plate (703) parallel to the first connecting plate (701) being arranged at one end of the second connecting plate (702) away from the first connecting plate (701), and the third connecting plate (703) extending in a direction away from the support longitudinal beam (101); The first connecting plate (701) and the second connecting plate (702) enclose a groove for covering a protruding portion of the supporting longitudinal beam (101); a first arc-shaped connecting portion (704) is provided at a connection position between the first connecting plate (701) and the second connecting plate (702); and a second arc-shaped connecting portion (705) is provided between the second connecting plate (702) and the third connecting plate (703).

2. The waterproof structure of the underground main structure according to claim 1, characterized in that: The center of the first arc-shaped connecting portion (704) is arranged on the inner side of the groove, and the center of the second arc-shaped connecting portion (705) is arranged on the outer side of the groove.

3. The waterproof structure of the underground main structure according to claim 1, characterized in that: At least two fixing components (8) are provided on each of the molding components (7); the fixing components (8) are provided on the first connecting plate (701) and are used to fix and install the molding components (7).

4. The waterproof structure of the underground main structure according to claim 3, characterized in that: The fixing component (8) is a fixing nail, the fixing nail having a head and a rod portion that are integrally connected, the rod portion being used to pass through the first connecting plate (701).

5. The waterproof structure of the underground main structure according to claim 4, characterized in that: The first connecting plate (701) has a recessed groove (7011) for accommodating the head.

6. The waterproof structure of the underground main structure according to claim 5, characterized in that: The shape of the sink groove (7011) is adapted to the shape of the head, and after the fixing nail is installed, the head is completely sunk into the sink groove (7011).

7. The waterproof structure of the underground main structure according to any one of claims 1 to 6, characterized in that: The side waterproof unit (5) comprises, from the outside to the inside, a protective structure layer (501), a leveling layer (502), a third waterproof coiled material layer (503), a fourth waterproof coiled material layer (504), and a protective layer (505) which are arranged in sequence.

8. The waterproof structure of the underground main structure according to any one of claims 1 to 6, characterized in that: The first waterproof spray coating layer (402) is a polyurethane waterproof coating layer, and the thickness of the polyurethane waterproof coating layer is 1.5 cm-5.5 cm.

9. The waterproof structure of the underground main structure according to any one of claims 1 to 6, characterized in that: The bottom protective layer (405) is a fine stone concrete layer, and the thickness of the fine stone concrete layer is 7 cm-9 cm.

10. The waterproof structure of the underground main structure according to any one of claims 1 to 6, characterized in that: A step-type connection structure (7031) is provided on one side of the third connection plate (703) away from the second connection plate (702), and the shape of the connection position between the support structure layer (401) and the third connection plate (703) is adapted to the connection structure (7031).

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