CN211144524U - Waterproof type connection structure of underground excavation subway station side wall and medium plate - Google Patents
Waterproof type connection structure of underground excavation subway station side wall and medium plate Download PDFInfo
- Publication number
- CN211144524U CN211144524U CN201921568065.0U CN201921568065U CN211144524U CN 211144524 U CN211144524 U CN 211144524U CN 201921568065 U CN201921568065 U CN 201921568065U CN 211144524 U CN211144524 U CN 211144524U
- Authority
- CN
- China
- Prior art keywords
- side wall
- middle plate
- subway station
- connection structure
- type connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a secretly dig subway station side wall and waterproof type connection structure of medium plate relates to subway building engineering technical field, has solved the poor technical problem of connector department top-down seam waterproof performance. The waterproof connecting structure for the side wall and the middle plate of the underground excavated subway station is characterized in that the edge of the middle plate extends downwards corresponding to the position of the side wall to form a joint part, and the connecting structure between the top of the side wall and the end part of the joint part is formed by reverse construction through a hole-pile method; the connecting structure is a reverse seam with a multi-step structure and comprises an upper step part positioned at the end part of the joint part and a lower step part positioned at the top of the side wall and matched with the upper step part; the surface of the upper step part is provided with a caulking glue layer and a grouting pipe. The utility model is used for a can improve waterproof type connection structure of waterproof ability.
Description
Technical Field
The utility model belongs to the technical field of subway building engineering technique and specifically relates to a secretly dig subway station side wall and waterproof type connection structure of medium plate is related to.
Background
With the development of urban traffic, subways become an indispensable part of the urban traffic, various rail traffic lines of the subways are arranged in a staggered mode to cover every corner of a city, and rail traffic transfer stations undoubtedly become hubs of the various traffic lines.
The hole pile method is a main construction method for underground excavation of a subway station at present, and for an underground double-layer underground excavation subway station, the construction procedures are as follows: after preliminary bracing of the arch part is completed, downwards excavating to the position of a station middle plate, sequentially constructing a middle plate structure, a negative first-layer side wall and a second arch part lining, then downwards excavating to a designed elevation, and then constructing a bottom plate and a negative second-layer structure side wall, wherein a longitudinally through reverse seam exists at the connecting part of the negative second-layer side wall and the poured middle plate.
The applicant has found that the prior art has at least the following technical problems:
at present, backfill construction is mostly carried out on a reverse joint position by adopting a horizontal joint section form, and side walls are poured from bottom to top, so that concrete pouring at the joint position is difficult to compact easily, and a gap at the reverse joint position is enlarged due to the action of gravity, so that the water resistance and the durability of a structure are influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an undercut subway station side wall and the waterproof type connection structure of medium plate to solve the connector department that exists among the prior art and do the poor technical problem of seam waterproof performance.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a waterproof connecting structure for a side wall and a middle plate of an underground excavated subway station, wherein the side part of the middle plate extends downwards corresponding to the side wall to form a joint part, and the connecting structure between the top of the side wall and the end part of the joint part is formed by reverse construction through a hole-pile method; the connecting structure is a reverse seam with a multi-step structure and comprises an upper step part positioned at the end part of the joint part and a lower step part positioned at the top of the side wall and matched with the upper step part.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
As a further improvement of the utility model, the surface of the upper step part is provided with a caulking glue layer, and the thickness of the caulking glue layer is 8-10 mm. The caulking glue layer is uniformly and continuously coated, and the phenomenon of layer rising or falling is avoided, so that the water stopping effect is not influenced.
As a further improvement, the utility model discloses a two adjacent stages the connection face between the step is vertical face or inclined plane.
As a further improvement, the step is close to the outside of the side wall and is lower than the step close to the inner side of the side wall.
As a further improvement of the present invention, the upper step portion is provided with at least one grouting pipe for pouring concrete between the joint portion and the side wall.
As a further improvement, the upper step part comprises a third step arranged along the width direction of the joint part, the number of the grouting pipes is one, and the middle part of the second step of the upper step part is fixed.
As a further improvement of the utility model, the height difference between the first step and the third step of the upper step part is 200 mm.
As a further improvement of the utility model, the surface of the upper step part is a scabbling surface. The surface is roughened to remove floating slurry and impurities and expose a fresh concrete surface.
As a further improvement, the width of the first step on the upper step part is the same as the width of the third step, and the width of the second step is larger than the width of the first step.
As a further improvement of the utility model, the first step of going up step portion is less than the third step.
As a further improvement of the present invention, the joint portion and be provided with triangle-shaped bevel portion between the medium plate, bevel portion with joint portion hookup location arrives distance is 800mm between the joint portion tip.
As a further improvement, the bevel part, the joint part and the middle plate are cast into a whole to form a structure.
As a further improvement of the present invention, the grouting pipe is along the joint portion length direction is set, all the grouting pipe is fixed on the joint portion end surface through a fastener.
As a further improvement, the utility model discloses an follow adjacent two that slip casting pipe length direction set up distance between the fastener is 20cm ~ 60 cm.
As a further improvement of the utility model, the width of the first step is 150mm, and the width of the second step is 300 or 500 mm.
Compared with the prior art, the utility model following beneficial effect has:
the utility model provides a secretly dig subway station side wall and medium plate waterproof type connection structure, through setting up the connection structure (reverse-construction seam) between the joint portion of side wall and medium plate to multistage stair structure, increase connection structure's waterproof ability, and set up the caulking glue on multistage stair structure surface and further improve waterproof ability, set up the slip casting pipe on stair structure surface and can like pouring concrete in the reverse-construction seam, when side wall top pouring takes shape, can make the concrete placement quality in the reverse-construction seam better, it is more closely knit, can further improve connection structure's waterproof ability; the connection strength between the middle plate and the joint part is increased by providing the bevel part between the middle plate and the joint part.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the waterproof connecting structure for the side wall and the middle plate of the underground excavated subway station of the present invention;
fig. 2 is a schematic structural view of an embodiment of the middle plate and the joint part before the construction of the waterproof connecting structure for the side wall and the middle plate of the underground excavated subway station of the present invention;
FIG. 3 is a schematic structural view of the underground excavated subway station side wall and middle plate waterproof connecting structure when caulking glue and grouting pipes are arranged before construction;
FIG. 4 is a partial enlarged view of a grouting pipe in the waterproof connecting structure for the side wall and the middle plate of the underground excavated subway station of the present invention;
fig. 5 is the structural schematic diagram of another embodiment of middle plate and joint portion before the waterproof type connection structure construction of underground excavation subway station side wall and middle plate of the utility model.
In the figure 1, a seam is reversely made; 2. an upper step portion; 21. a first step; 22. a second step; 23. a third step; 3. caulking glue layer; 4. a grouting pipe; 5. a fastener; 100. a middle plate; 200. a side wall; 300. a joint portion; 400. a beveled corner portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a waterproof connecting structure for side walls and a middle plate of an underground excavated subway station, wherein the edge of the middle plate 100 extends downwards corresponding to the position of the side wall 200 to form a joint part 300, and the connecting structure between the top of the side wall 200 and the end part of the joint part 300 is formed by reverse construction through a hole-pile method; the connecting structure is a reverse seam 1 with a multi-step structure, and comprises an upper step part 2 positioned at the end part of the joint part 300 and a lower step part positioned at the top of the side wall 200 and matched with the upper step part 2.
As shown in fig. 2 and 3, in order to further improve the waterproof capability of the connection structure, the surface of the upper step part 2 is provided with a caulking glue layer 3, and the thickness of the caulking glue layer 3 after molding is 8-10 mm. The caulking glue layers 3 with different thicknesses can be selected according to actual needs. The caulking glue layer is uniformly and continuously coated, and the phenomenon of layer rising or falling is not generated, so that the water stopping effect is not influenced
As shown in fig. 2 and 5, further, the connecting surface between two adjacent steps is a vertical surface or a slope surface.
Further, the step near the outer side of the side wall 200 is lower than the step near the inner side of the side wall 200.
As an alternative embodiment, at least one grouting pipe 4 for pouring concrete between the joint 300 and the side wall 200 is provided on the upper step 2.
As shown in fig. 3 and 4, the upper step portion includes three steps arranged along the width direction of the joint portion, and one grouting pipe is fixed in the middle of the second step of the upper step portion. Considering that the thickness of the side wall 200 in the current subway station is generally 600 or 800mm, the number of steps is set according to the thickness of the side wall 200. In the present embodiment, the design is made for the scheme that the thickness of the side wall 200 is 600mm, and the number of the steps is three.
The surface of the upper step part 2 is a scabbed surface. The surface is roughened to remove floating slurry and impurities and expose fresh concrete surface to increase binding force and binding effect.
In the present invention, the height difference between the first step 21 and the third step 23 of the upper step portion 2 is 200 mm.
Further, the width of the first step 21 on the upper step 2 is the same as the width of the third step 23, and the width of the second step 22 is greater than the width of the first step 21.
To prevent water from entering, the first step 21 of the upper step 2 is lower than the third step 23. Thereby forming a step structure sequentially upward.
In order to increase the strength between the middle plate 100 and the joint part 300, a triangular bevel part 400 is provided between the joint part 300 and the middle plate 100, and the distance between the connecting position of the bevel part 400 and the joint part 300 and the end of the joint part 300 is 800 mm.
For convenience of processing, the bevel portion 400, the joint portion 300 and the middle plate 100 are integrally cast.
The grout tubes 4 are arranged along the length of the coupling part 300, and all the grout tubes 4 are fixed to the end surface of the coupling part 300 by fasteners 5. During construction, the grouting pipe 4 must be firmly fixed to the concrete surface.
As shown in fig. 4, the distance between two adjacent fasteners 5 arranged along the length direction of the grouting pipe 4 is 20cm to 60 cm. The length of the grouting pipe 4 is the same as that of the reverse acting seam 1; the fastener 5 adopts the fastener 5 that has the ring shape bearing part, and the fastener 5 is twisted into on the reverse acting seam 1 surface through the bolt with fixed slip casting pipe 4, prevents that slip casting pipe 4 from shifting at the pouring in-process. The closer the setting distance is, the firmer the setting distance is, but the relative cost is increased, and the setting distance can be selected according to actual conditions. Grouting pipe 4 adopts special fastener to fix on the contrary seam surface structure midline of doing, and the fixed spacing is generally controlled between 40 ~ 50cm, and along the contrary seam leads to long the setting of doing, reply fixed fastener 5 when installing grouting pipe 4 when necessary encrypts, prevents to drop at concrete placement in-process buckle 5 and makes grouting pipe 4 shift influence slip casting effect.
The width of the first step 21 is 150mm and the width of the second step 22 is 300 or 500 mm.
The utility model provides a secretly dig subway station side wall and medium plate connection structure sets to multistage stair structure through the connection structure (reverse construction seam) between the joint portion with side wall and medium plate, increases connection structure's waterproof ability, and set up the caulking glue on multistage stair structure surface and further improve waterproof ability, set up the slip casting pipe on stair structure surface and can like pouring concrete in the reverse construction seam, when side wall top pouring takes shape, can make the concrete placement quality inside the reverse construction seam better, it is more closely knit, can further improve connection structure's waterproof ability; the connection strength between the middle plate and the joint part is increased by providing the bevel part between the middle plate and the joint part.
It should be noted that "inward" is a direction toward the center of the accommodating space, and "outward" is a direction away from the center of the accommodating space.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in fig. 1, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A waterproof connecting structure for a side wall and a middle plate of an underground excavated subway station is characterized in that the edge of the middle plate extends downwards corresponding to the side wall to form a joint part, and a connecting structure between the top of the side wall and the end part of the joint part is formed by reverse construction through a hole-pile method; the connecting structure is a reverse seam with a multi-step structure and comprises an upper step part positioned at the end part of the joint part and a lower step part positioned at the top of the side wall and matched with the upper step part; the surface of the upper step part is provided with a caulking glue layer, and the thickness of the caulking glue layer is 8-10 mm.
2. The underground excavation subway station side wall and middle plate waterproof type connection structure as claimed in claim 1, wherein at least one grouting pipe for pouring concrete between said joint portion and said side wall is provided on said upper step portion.
3. The underground excavation subway station side wall and middle plate waterproof type connection structure of claim 2, wherein the upper step portion comprises three steps arranged along the width direction of the joint portion, and the number of the grouting pipes is one, and the grouting pipes are fixed in the middle of the second step of the upper step portion.
4. The underground excavation subway station side wall and middle plate waterproof type connection structure of claim 1, wherein, the upper step surface is a scabbed surface.
5. The underground excavation subway station side wall and middle plate waterproof type connection structure of claim 3, wherein the width of the first step on the upper step is the same as the width of the third step, and the width of the second step is greater than the width of the first step.
6. The underground excavation subway station side wall and middle plate waterproof type connection structure of claim 4, wherein the first step of the upper step is lower than the third step.
7. The underground excavation subway station side wall and middle plate waterproof type connection structure of claim 1, 3, 4, 5 or 6, characterized in that a triangular bevel portion is arranged between the joint portion and the middle plate, and the distance between the connection position of the bevel portion and the joint portion and the end of the joint portion is 800 mm.
8. The underground excavation subway station side wall and middle plate waterproof type connection structure of claim 7, wherein the bevel portion, the joint portion and the middle plate are of an integrally cast structure.
9. The underground excavation subway station side wall and middle plate waterproof type connection structure as claimed in claim 2, wherein said grouting pipes are arranged along a length direction of said joint portion, and all of said grouting pipes are fixed on a surface of an end portion of said joint portion by a fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921568065.0U CN211144524U (en) | 2019-09-19 | 2019-09-19 | Waterproof type connection structure of underground excavation subway station side wall and medium plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921568065.0U CN211144524U (en) | 2019-09-19 | 2019-09-19 | Waterproof type connection structure of underground excavation subway station side wall and medium plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211144524U true CN211144524U (en) | 2020-07-31 |
Family
ID=71759218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921568065.0U Active CN211144524U (en) | 2019-09-19 | 2019-09-19 | Waterproof type connection structure of underground excavation subway station side wall and medium plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211144524U (en) |
-
2019
- 2019-09-19 CN CN201921568065.0U patent/CN211144524U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206298900U (en) | A kind of diaphram wall built-in type steel encloses purlin plug system | |
| CN103410174A (en) | GXJ underground continuous wall rubber waterproof connector tool and construction method thereof | |
| CN112144509A (en) | Construction method of underground continuous wall, joint and connection structure thereof | |
| CN101807785A (en) | Prefabricated assembled cable trench and installation method thereof | |
| CN211144524U (en) | Waterproof type connection structure of underground excavation subway station side wall and medium plate | |
| CN210562127U (en) | Fold and water formula underground continuous wall | |
| CN210599025U (en) | Reverse construction seam at joint in underground excavation subway station | |
| CN216615981U (en) | Basement outer wall post-cast strip precast slab reinforced structure | |
| CN114150628B (en) | Rock-fill dam top spillway chute and construction method thereof | |
| CN211948464U (en) | Underground continuous wall and foundation slab's pre-buried steel sheet connection structure | |
| CN113373904A (en) | Water-stop type angle lug steel sheet pile and construction method | |
| CN114263219A (en) | Advanced water stop structure of bottom plate post-cast strip for underground engineering and construction method | |
| CN218373936U (en) | Side slope temporary support structure combining cement micro pile and soil nailing wall | |
| CN205012351U (en) | Arcading formula sheet pile supporting construction | |
| CN216640599U (en) | Stagnant water is strutted integration foundation ditch and is propped retaining structure | |
| CN215105242U (en) | Water-stop type angle lug steel sheet pile | |
| CN210368502U (en) | Pouring reinforced HDPE linear floor tile connecting joint drainage facility | |
| CN116556323B (en) | Underground station bottom plate adjustable uplift pile adopting cover-excavation method and construction method | |
| CN211646495U (en) | Waterproof connection structure of support plate belt and temporary enclosure | |
| CN210459122U (en) | Bank slope geomembrane anchor structure | |
| CN217601487U (en) | Dredging well plugging construction node | |
| CN212801610U (en) | Open caisson cutting edge foot supporting structure | |
| CN215165636U (en) | Integrated foundation pit structure stable in stress | |
| CN210562118U (en) | Novel combined steel sheet pile | |
| CN214738333U (en) | Permanent-faced combined box culvert foundation reinforcing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |