Supporting structure for waterproof design at joint of subway station main body and accessory

Abstract

The utility model relates to a supporting structure for waterproof design at the joint of a subway station main body and an accessory, which comprises a station main body structure, an accessory access, long piles, short piles and an accessory top and bottom plate, the accessory access is communicated with the station main body structure, the station main body structure is provided with a main body structure side wall, and the accessory access is provided with an accessory side wall; the number of the long piles and the number of the short piles are multiple, the long piles are located at the joint of the station main body structure and the auxiliary entrance and exit, every two adjacent long piles are arranged at intervals, the short piles are arranged close to the long piles, the long piles are connected with part of the adjacent short piles through long and short pile connecting beams, and the long piles and surrounding fender posts form a whole through top beams. The auxiliary top and bottom plates are arranged at the tops and the bottoms of the auxiliary side walls, rigid hinge plate supports are arranged at the joints of the auxiliary top and bottom plates and the short piles, and steel plate water-stop belts are embedded in the joints. The supporting structure with the waterproof design at the joint of the subway station main body and the accessory can effectively solve the problem of water leakage at the joint of the subway station main body and the accessory joint.

Description

Technical Field

[0001] This application relates to the technical field of subway structural engineering, and particularly to a supporting structure for waterproof design at the interface between the main body and the annex of a subway station. Background Art

[0002] In subway structural engineering, the retaining pile + steel support is a common supporting form. At the same time, the waterproofing adopts the close-fitting and inverted laying scheme. A connecting joint is formed at the interface between the main body and the annex because the water-stop steel plate cannot be constructed, and water leakage problems often occur. The conventional method to solve this problem is mainly to set a water receiving trough on the top plate and a drainage ditch on the bottom plate. The water receiving trough and the drainage ditch are connected to the separated wall ditch and discharged to the sump. This method cannot solve the fundamental problem of water leakage at the interface position. At the same time, if the water leakage is serious and the drainage of the water receiving trough or the drainage ditch is blocked, it will also cause water leakage indoors. Summary of the Utility Model

[0003] The embodiment of this application provides a supporting structure for waterproof design at the interface between the main body and the annex of a subway station, which can effectively solve the problem of water leakage at the interface between the main body and the annex of the subway station.

[0004] The supporting structure for waterproof design at the interface between the main body and the annex of the subway station provided by the embodiment of this application includes: a main station structure and an annex entrance. The annex entrance is communicated with the main station structure. The main station structure is provided with a main structure side wall, and the annex entrance is provided with an annex side wall;

[0005] Long piles and short piles. The number of the long piles and the short piles is multiple. The long piles are located at the connection between the main station structure and the annex entrance. Adjacent two long piles are arranged at intervals. The short piles are arranged adjacent to the long piles. The long piles and some adjacent short piles are connected by a long-short pile connecting beam and form an integral body with the surrounding retaining piles through a capping beam;

[0006] An annex top and bottom plate, which is arranged at the top and bottom of the annex side wall. A rigid hinge plate brace and a pre-buried steel plate water stop belt are arranged at the connection between the annex top and bottom plate and the short piles.

[0007] In addition, the supporting structure for waterproof design at the interface between the main body and the annex of the subway station provided by the embodiment of this application may also have the following additional technical features:

[0008] In an optional solution, steel bar couplers and coupler anchoring steel bars are pre-buried at the positions of the short piles corresponding to the long-short pile connecting beam. Stress steel bars, waist steel bars, stirrups and anchoring steel bars are arranged in the long-short pile connecting beam. The anchoring steel bars are connected with the steel bar couplers pre-buried in the short piles.

[0009] In an alternative solution, the stressed steel bars, the waist bars and the stirrups are arranged at equal intervals in the long-short pile connecting beam. A steel bar coupler is also provided at the top of the long-short pile connecting beam. One end of the steel bar coupler at the top of the long-short pile connecting beam is connected to the longitudinal bars in the long pile, and the other end is connected to the anchoring steel bars in the attached top and bottom plates.

[0010] In an alternative solution, the number of the steel plate water stops is multiple, and the multiple steel plate water stops are arranged at intervals along the extending direction of the attached side wall.

[0011] The beneficial effects of the embodiments of the present application are as follows:

[0012] In the support structure in the embodiments of the present application, through the support solution of long piles and short piles, part of the attached structure can be implemented in advance, and steel plate water stops are buried to increase the water stop effect, extend the seepage path, achieve a good waterproof effect, and form a rigid hinge by setting a rigid hinge plate brace to ensure the safety of the foundation pit.

[0013] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an elevation view of the support structure provided by the present application in a specific embodiment;

[0015] Figure 2 is Figure 1 the plan view of the support structure in;

[0016] Figure 3 is Figure 1 the sectional view of the support structure in;

[0017] Figure 4 is the connection view of the support structure provided by the present application at the long-short pile connecting beam.

[0018] Reference numerals: long pile 1, long-short pile connecting beam 2, attached top and bottom plates 3, short pile 4, capping beam 5, main structure side wall 6, attached side wall 7, steel plate water stop 8, rigid hinge plate brace 9, steel bar coupler 10, stressed steel bar 11, waist bar 12, coupler anchoring steel bar 13, stirrup 14, anchoring steel bar 15, station main structure 16, attached entrance 17.

[0019] The drawings here are incorporated into the description and form a part of the description, showing embodiments consistent with the present application and used together with the description to explain the principles of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to better understand the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the drawings.

[0021] It should be clear that the described embodiments are only a part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application.

[0022] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. The singular forms "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0023] It should be understood that the term "and / or" used herein is only a relational description of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0024] It should be noted that the orientation terms such as "upper", "lower", "left", and "right" described in the embodiments of this application are described from the angles shown in the drawings, and should not be construed as limitations on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element.

[0025] As Figures 1-4 shown, the embodiments of this application provide a support structure for waterproof design at the interface between the main body and the annex of a subway station. This support structure can effectively solve the problem of water leakage at the interface between the main body and the annex of the subway station. Specifically, it includes a station main body structure 16, an annex entrance 17, long piles 1, short piles 4, and an annex top and bottom slab 3. Among them, the annex entrance 17 is connected to the station main body structure 16. The station main body structure 16 is provided with a main structure side wall 6, and the annex entrance 17 is provided with an annex side wall 7. The number of long piles 1 and short piles 4 is multiple. The long piles 1 are located at the connection between the station main body structure 16 and the annex entrance 17, and adjacent long piles 1 are arranged at intervals. The short piles 4 are arranged adjacent to the long piles 1. The long piles 1 and some adjacent short piles 4 are connected by a long-short pile connecting beam 2, and are formed into a whole with the surrounding retaining piles through a capping beam 5. The annex top and bottom slab 3 is arranged at the top and bottom of the annex side wall 7. A rigid hinge plate brace 9 and a pre-buried steel plate waterstop 8 are arranged at the connection between the annex top and bottom slab 3 and the short piles 4. The number of steel plate waterstops 8 is multiple, and the multiple steel plate waterstops 8 are arranged at intervals along the extension direction of the annex side wall 7.

[0026] Specifically, the spacing between the long piles 1 and the short piles 4 can be determined according to the auxiliary width and the rigid hinged plate support 9 implemented in advance. The long piles 1 and the short piles 4 are connected by the long-short pile connecting beam 2 to form a reinforced concrete structure, and are integrated with the surrounding retaining piles through the cap beam 5 to jointly bear the soil pressure outside the pit. Figure 3 As shown, during construction, the main foundation pit of the station is excavated normally according to the excavation method of the retaining pile + steel support scheme. When the main structure is constructed to the middle plate of the negative first floor, the auxiliary top and bottom plates 3 and rigid hinged plate supports 9 are implemented at the corresponding positions, and the steel plate waterstop 8 is pre-buried; the main structure is continued to be constructed and the auxiliary side walls 7 are implemented simultaneously, and the steel plate waterstop 8 is pre-buried; when the main structure is constructed to the top plate, the auxiliary top and bottom plates 3 and rigid hinged plate supports 9 are implemented at the corresponding positions, and the steel plate waterstop 8 is pre-buried to ensure the safety of the main foundation pit. In order to improve the economy, the rigid hinged plate supports 9 can be arranged at intervals.

[0027] In this embodiment, the support structure adopts a support scheme combining long piles 1 and short piles 4. The local auxiliary structure is implemented in advance, and the steel plate water stop 8 is buried. At the same time, a rigid hinge plate support 9 is set to form a rigid hinge to ensure the safety of the foundation pit. When the auxiliary structure is constructed in the later stage, the rigid hinge plate support 9 is removed to form an integral structure. The long pile 1 and the short pile 4 are connected by a long-short pile connecting beam 2, with the long pile 1 in front and the short pile 4 in the back. The integrity of the support structure is ensured by the long-short pile connecting beam 2, and the auxiliary structure can also be implemented in advance. In addition, the buried steel plate water stop 8 can effectively increase the water stop effect, extend the water seepage path, and achieve a good waterproof effect.

[0028] like Figure 4 As shown, in a specific embodiment, a steel bar connector 10 and a connector anchoring steel bar 13 are pre-embedded in the position of the short pile 4 corresponding to the long-short pile connecting beam 2, and a force-bearing steel bar 11, a waist bar 12, a stirrup 14 and an anchoring steel bar 15 are arranged in the long-short pile connecting beam 2, and the anchoring steel bar 15 is connected to the steel bar connector 10 pre-embedded in the short pile 4.

[0029] like Figure 4 As shown, in a specific embodiment, the stress-bearing steel bars 11, waist bars 12 and stirrups 14 are arranged at equal intervals in the long-short pile connecting beam 2. If the long pile 1 needs to participate in anti-floating, a steel bar connector 10 must also be set at the top of the long-short pile connecting beam 2, and one end of the steel bar connector 10 at the top of the long-short pile connecting beam 2 is connected to the longitudinal bars in the long pile 1, and the other end is connected to the anchor steel bar 15 in the auxiliary top and bottom plates 3. Compared with the ordinary retaining pile + internal support support solution, some auxiliary structures can be implemented in advance, and the steel plate water stop 8 can be buried to achieve a good waterproof effect.

[0030] The support structure in the embodiments of this application can be constructed according to the following steps during construction: 1) Site leveling; 2) Construct the long piles 1 in the front row and the short piles 4 in the back row; 3) Excavate the main foundation pit according to the normal construction process and timely install steel supports; 4) When excavating to the position of the tie beam, construct the tie beam of the long and short piles 4; 5) Pour the bottom slab, the side walls 6 of the main structure, and the middle slab of the station main structure 16, and simultaneously construct the top and bottom slabs 3 of the annex, the side walls 7 of the annex, and the rigid hinge plate supports 9, and embed the steel plate water stop 8; 6) Continue to construct the annex structure.

[0031] The above are only the preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A waterproof support structure for the interface between the main body and the auxiliary of a subway station, characterized in that: include: A station main structure and an auxiliary entrance and exit, wherein the auxiliary entrance and exit are connected to the station main structure, the station main structure is provided with a main structure side wall, and the auxiliary entrance and exit is provided with an auxiliary side wall; Long piles and short piles, the number of the long piles and the short piles is multiple, the long piles are located at the connection between the main structure of the station and the auxiliary entrance and exit, two adjacent long piles are arranged at intervals, and the short piles are arranged adjacent to the long piles, the long piles are connected to the adjacent short piles through long-short pile connecting beams, and form a whole with the surrounding guard piles through a crown beam; The auxiliary top and bottom plates are arranged at the top and bottom of the auxiliary side walls, and the connection between the auxiliary top and bottom plates and the short piles is provided with a rigid hinged plate support and a pre-embedded steel plate water stop.

2. The waterproof support structure at the interface between the main body and the auxiliary of the subway station according to claim 1 is characterized in that: The short piles are pre-buried with steel bar connectors and connector anchoring steel bars at positions corresponding to the long-short pile connecting beams. The long-short pile connecting beams are arranged with stress-bearing steel bars, waist bars, stirrups and anchoring steel bars. The anchoring steel bars are connected to the steel bar connectors pre-buried in the short piles.

3. The waterproof support structure at the interface between the main body and the auxiliary of the subway station according to claim 2 is characterized in that: The stressed steel bars, waist bars and stirrups are arranged at equal intervals in the long-short pile connecting beam, and a steel bar connector is also provided on the top of the long-short pile connecting beam, and one end of the steel bar connector on the top of the long-short pile connecting beam is connected to the longitudinal bars in the long pile, and the other end is connected to the anchoring steel bars in the auxiliary top and bottom plates.

4. The waterproof support structure at the interface between the main body and the auxiliary of the subway station according to any one of claims 1 to 3, characterized in that: There are multiple steel plate waterstops, and the multiple steel plate waterstops are arranged at intervals along the extension direction of the auxiliary side wall.

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