CN210766883U - Template suitable for cascaded top-down construction seam subway station side wall is pour - Google Patents
Template suitable for cascaded top-down construction seam subway station side wall is pour Download PDFInfo
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- CN210766883U CN210766883U CN201921567905.1U CN201921567905U CN210766883U CN 210766883 U CN210766883 U CN 210766883U CN 201921567905 U CN201921567905 U CN 201921567905U CN 210766883 U CN210766883 U CN 210766883U
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- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000009412 basement excavation Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 63
- 239000010959 steel Substances 0.000 claims description 63
- 238000007493 shaping process Methods 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 31
- 238000005086 pumping Methods 0.000 claims description 28
- 238000009415 formwork Methods 0.000 claims description 13
- 238000004513 sizing Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 210000003141 lower extremity Anatomy 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a template suitable for cascaded contrary construction joint subway station side wall is pour of doing relates to subway tunnel construction technical field, has solved prior art and when the side wall is pour to the contrary doing, causes the construction joint space great easily, the relatively poor technical problem of water-proof effects. The template comprises a side wall template and an artificial feeding part arranged on the side wall template, wherein the artificial feeding part is in a funnel shape protruding outwards; the lower edge chamfering part of the middle plate of the subway station extends downwards to form a stepped structure, when the side wall template is installed on the outer side of the stepped structure, a side wall pouring cavity is formed between the side wall template and an excavation surface, and the top of the manual feeding part is higher than the upper edge of the stepped structure, so that concrete can be poured layer by layer at the stepped structure through the manual feeding part. The utility model is used for a can reduce cascaded construction joint space, improve waterproof performance's side wall pouring template.
Description
Technical Field
The utility model belongs to the technical field of subway tunnel construction technique and specifically relates to a template suitable for cascaded top-down construction seam subway station side wall is pour 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 an important construction method of the underground excavation of the subway station at present, and in the Chinese utility model patent with the application publication number of CN 108005664A, the construction process is disclosed for the underground double-layer underground excavation of the subway station: after arch preliminary bracing is accomplished, excavate downwards to station medium plate position, construct medium plate, negative one deck side wall and two linings of arch portion in proper order, then excavate downwards to the design elevation, execute the bottom plate and pour the negative bilayer structure side wall again, when pouring negative bilayer side wall, need build the side wall template earlier, the side wall template is located between medium plate and the bottom plate, the side wall template is platelike structure, sets up the through-hole as pouring the mouth on the side wall template it pours the formation to connect the pump line on the pouring mouth negative bilayer side wall, has one vertical through-length reverse construction seam on negative bilayer side wall and the medium plate connection position of pouring like this.
The applicant finds that in the existing subway station side wall construction process by adopting a hidden excavation pile method, a side wall template is firstly built, concrete is poured between the side wall template and an excavation surface to form a side wall, and the side wall is poured from bottom to top, so that trace sinking can be generated under the action of gravity, the gap at a construction joint is enlarged, and the waterproof effect is poor; in order to solve the technical problem, the applicant considers that the joint of the middle plate and the side wall can be set to be in a step shape, but in this way, when the side wall is poured by adopting a traditional template structure, the gap at the edge position of the step is not easy to fill, so that the gap of the construction joint is larger, and the waterproof effect is poorer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a template suitable for cascaded contrary construction joint subway station side wall is pour to when pouring the side wall among the solution prior art, be difficult for filling up the space of the stupefied position in step limit, it is great to cause the construction joint space easily, the relatively poor technical problem of water-proof effects. The following explains various technical effects that can be produced by the preferred technical scheme in the technical schemes of the utility model.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a template suitable for cascaded top-down construction seam subway station side wall is pour, including the side wall template and set up in the artifical material portion of throwing in on the side wall template; wherein,
the side wall template comprises template back ribs and shaping modules, the number of the template back ribs is at least three, the shaping modules are fixedly connected between every two adjacent template back ribs, the top of each shaping module is provided with the manual feeding part, the manual feeding part protrudes outwards, and the sectional area of the top of the manual feeding part is larger than that of the bottom of the manual feeding part;
the lower edge chamfering part of the middle plate of the subway station extends downwards to form a stepped structure, the manual feeding part is located on the outer side of the stepped structure after the side wall formwork is installed, a side wall pouring cavity is formed between the side wall formwork and an excavation surface, and the bottom of the manual feeding part is higher than the lower edge of the stepped structure, so that concrete can be poured layer by layer at the stepped structure through the manual feeding part.
In a preferred or alternative embodiment, the sizing module comprises a first sizing steel die and at least two second sizing steel dies; wherein,
the first shaping steel die and the at least two second shaping steel dies are arranged along the length direction of the template back rib; the first shaping steel die is provided with the manual feeding part, and the second shaping steel die is arranged below the first shaping steel die.
In a preferred or optional embodiment, the outer contour of the manual feeding part is a transverse triangular prism structure, one side surface of the triangular prism structure is open, and the other side surface of the triangular prism structure is communicated with the first fixed steel form.
In a preferred or optional embodiment, each of the sizing modules is further provided with a pumping concrete inlet, and the pumping concrete inlet is located in a region below the manual feeding part.
In a preferred or optional embodiment, one of the second shaped steel dies is provided with a pumping concrete inlet.
In a preferred or optional embodiment, the pumping concrete inlet is a through hole arranged on the second shaping steel die.
In a preferred or optional embodiment, the second shaping steel die is hinged with a material inlet cover, the material inlet cover is arranged in the area near the pumping concrete material inlet, and the material inlet cover can cover the pumping concrete material inlet.
In a preferred or optional embodiment, the material inlet cover is hinged to the second shaping steel die through a hinge.
In a preferred or alternative embodiment, the first shaped steel die and the second shaped steel die are fixedly connected with the template back rib respectively.
In a preferred or alternative embodiment, the dimension of the second shaped steel die in the length direction of the template back rib is not smaller than the dimension of the first shaped steel die in the length direction of the template back rib.
Based on the technical scheme, the embodiment of the utility model provides a can produce following technological effect at least:
the utility model provides a template suitable for cascaded top-down construction seam subway station side wall is pour, throw material portion including side wall template and manual work, subway station's medium plate lower edge chamfer position downwardly extending is the stair structure after the installation of side wall template is accomplished, the manual work is thrown material portion bottom and is higher than stair structure's lower limb is consequently passing through the manual work throw material portion to when the concrete is filled to the stair structure intussuseption, pour into the concrete that the material portion was thrown to the manual work can flow in automatically and the tile is built the intracavity in stair structure's side wall owing to the effect of self gravity, so relapse successive layer pour until will stair structure fills up, has reduced the space of construction seam as far as possible, prevents the emergence of the phenomenon of leaking.
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 a formwork suitable for pouring a side wall of a subway station of a stepped reverse construction seam provided in an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the first shaped steel form shown in FIG. 1;
FIG. 3 is a schematic view of the connection between the side wall and the middle plate after casting.
In the figure, 1, a side wall template; 11. a template back rib; 12. a shaping module; 121. a first shaping steel die; 122. a second sizing steel die; 123. a manual feeding part; 124. pumping a concrete feeding port; 125. a feeding port cover; 2. a middle plate; 21. a stepped structure; 3. excavating a surface; 4. a side wall; 5. constructing a joint; 6. a base plate; 7. and (5) pouring a cavity on the side wall.
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.
The utility model provides a can reduce cascaded construction joint space, improve waterproof performance's template that is applicable to cascaded top-down construction joint subway station side wall and pours.
The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 3.
As shown in fig. 1 to 3, the formwork for pouring the side wall of the subway station suitable for the stepped reverse construction seam provided by the embodiment of the present invention comprises a side wall formwork 1 and a manual feeding portion 123 arranged on the side wall formwork 1; wherein,
the side wall template 1 comprises template back ribs 11 and shaping modules 12, the number of the template back ribs 11 is at least three, the shaping modules 12 are fixedly connected between every two adjacent template back ribs 11, the top of each shaping module 12 is provided with an artificial feeding part 123, the artificial feeding part 123 protrudes outwards, and the sectional area of the top of the artificial feeding part is larger than that of the bottom of the artificial feeding part;
the lower edge chamfer position of middle plate 2 of subway station downwardly extends to be stair structure 21, and the manual material portion 123 of throwing is located the stair structure 21 outside after the installation of side wall template 1 is accomplished, forms side wall pouring chamber 7 between side wall template 1 and the excavation face, and the lower limb that the manual material portion 123 bottom is higher than stair structure 21 can throw material portion 123 through the manual and pour the concrete to stair structure 21 department layer by layer.
The utility model provides a template suitable for cascaded top-down construction seam subway station side wall is pour, including side wall template 1 and artifical material feeding portion 123, the downward extension of the lower edge chamfer position of medium plate 2 of subway station is the stair structure, after side wall template 1 installation is accomplished, artifical material feeding portion 123 bottom is higher than the lower limb of stair structure 21, therefore, when filling concrete into stair structure 21 through artifical material feeding portion 123, the concrete that pours into artifical material feeding portion 123 can flow into automatically and lay flatly in side wall pouring cavity 7 because of the effect of self gravity, continue to pour concrete into artifical material feeding portion after the upper surface of pouring is leveled, and stair structure 21 locates to be located the outside the ladder higher than the ladder of inboard, therefore in the repeated pouring process, the concrete is full of stair structure 21 from low to high successive layer, fills up the edge stupefied department of stair structure 21 as far as possible, the gap of the construction joint is reduced, and the water leakage phenomenon is prevented. In addition, after the uppermost step is poured, concrete can be continuously poured into the manual feeding portion 123 until the top of the manual feeding portion 123, according to the principle that the gravity of the concrete is combined with a communicating device, the concrete in the manual feeding portion 123 can generate pressure on the concrete at the step structure 21, air bubbles generated in the pouring process can be extruded and discharged, the concrete at the step structure is more compact, and the waterproof performance is further improved.
As a preferred or alternative embodiment, the sizing module 12 comprises a first sizing die 122 and at least two second sizing dies 123; wherein,
the first shaping steel die 122 and the at least two second shaping steel dies 123 are arranged along the length direction of the template back rib 11; the first shaping steel die 122 is provided with a manual feeding part 123, and the second shaping steel die 123 is arranged below the first shaping steel die 122.
Specifically, the template back rib 11 can adopt i-steel or channel steel, and the split of the shaping module 12 is divided into a first shaping steel die 121 and a plurality of second shaping steel dies 122, so that the assembling and processing can be performed near the construction position, and the transportation is more convenient.
As a preferred or alternative embodiment, the outer contour of the manual feeding portion 123 is a transverse triangular prism structure, one side surface of the triangular prism structure is open, and the other side surface is communicated with the first fixed steel form 121.
Specifically, as shown in fig. 1-2, artifical material portion 123 of throwing is the rectangular prism shape of horizontal right angle, the uncovered setting of its two right-angle faces, one of them right-angle face level sets up, be used for pouring the concrete, wherein stupefied and first certain shaped steel form 121 of another right-angle face limit, and there is the clearance its bottom and stair structure 21 side, the concrete can flow into stair structure 21 in through this clearance during pouring, first design shaped steel form 121 also is uncovered setting in meeting the department with another right-angle face, so can increase the flow area of concrete, and construction efficiency is improved, on the other hand can improve the volume that artifical material portion 123 of throwing bore the weight of concrete, make the pressure increase of concrete to stair structure 21 department in it, the filling effect is better.
In a preferred or alternative embodiment, each of the sizing modules 12 is further provided with a pumping concrete inlet 124, and the pumping concrete inlet 124 is located in a region below the manual feeding part 123.
In a preferred or alternative embodiment, one of the second shaped steel molds 122 is provided with a pumping concrete inlet 124.
In a preferred or alternative embodiment, the pumping concrete inlet is a through hole formed in the second shaped steel die 122.
Specifically, since the sizing module 12 has a certain height, if concrete is poured inwards only through the manual feeding portion 123, impact force is easily generated on the side wall formwork 1 in the process that the concrete falls from the high place, so that the side wall formwork 1 deforms, and the construction effect is affected, the concrete can be filled to a certain height through the pumping concrete feeding port 124, and then the concrete is poured through the manual feeding portion 123; the pumping concrete feeding port 124 is arranged below, concrete can be poured into the pumping concrete feeding port 124 through a pipeline by a concrete pump or a pump truck, and the construction efficiency is high; in addition, in order to further improve the construction efficiency, the concrete can be poured through the manual feeding part 123 and the pumping concrete inlet 124 at the same time.
In a preferred or alternative embodiment, the second shaped steel die 122 is hinged with a material inlet cover 125, the material inlet cover 125 is disposed in the vicinity of the pumping concrete material inlet 124, and the material inlet cover 125 can cover the pumping concrete material inlet 124.
In a preferred or alternative embodiment, the feeding port cover 125 is hinged to the second shaped steel die 122.
Specifically, the size of the inlet cover 125 is matched with that of the pumping concrete inlet 124, and when a concrete pump or a pump truck is used for pouring through the pumping concrete inlet 124, the inlet cover 125 is opened; when the casting height exceeds the pumping concrete inlet 124, the inlet cover 125 is required to cover to prevent the concrete from flowing out of the pumping concrete inlet 124. The hinge can be connected with the feeding port cover 125 and the second shaping steel die 122 in a welding mode or in a screw connection mode, so that the feeding port cover 125 is prevented from being lost when the pumping concrete feeding port 124 is opened, and the operation is convenient.
In a preferred or alternative embodiment, the first shaped steel form 121 and the second shaped steel form 122 are fixedly connected to the form back rib 11.
Specifically, the first and second shaped steel dies 121 and 122 may be connected to the back rib 11 by flanges or welding. The reinforcing steel bars can be obliquely pulled and fixed when the side wall formwork 1 and the middle plate 2 are fixed at opposite positions, the fixing mode is the same as that of the formwork in the prior art, repeated description is omitted, and the installed side wall formwork 1 is located between the middle plate 2 and the bottom plate 6.
As a preferred or alternative embodiment, the dimension of the second shaped steel form 122 in the length direction of the template back rib 11 is not smaller than the dimension of the first shaped steel form 121 in the length direction of the template back rib 11.
Specifically, the sizes of the first shaping steel die 121 and the second shaping steel die 122 can be determined according to the actual size of site construction, the size of the first shaping steel die 121 is determined by the size of the manual feeding part 123, and the size of the second shaping steel die 122 is larger than that of the first shaping steel die 121, so that the installation times of the second shaping steel die 122 can be reduced, and the installation time is saved.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.
Meanwhile, if the invention as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connection (such as riveting and welding), of course, the mutual fixed connection can also be an integral structure (for example, the mutual fixed connection is manufactured by casting and integral forming instead (except that the integral forming process can not be adopted obviously).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated. Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. The template suitable for pouring the side wall of the subway station of the stepped reverse construction seam is characterized by comprising a side wall template and a manual feeding part arranged on the side wall template; wherein,
the side wall template comprises template back ribs and shaping modules, the number of the template back ribs is at least three, the shaping modules are fixedly connected between every two adjacent template back ribs, the top of each shaping module is provided with the manual feeding part, the manual feeding part protrudes outwards, and the sectional area of the top of the manual feeding part is larger than that of the bottom of the manual feeding part;
the lower edge chamfering part of the middle plate of the subway station extends downwards to form a stepped structure, the manual feeding part is located on the outer side of the stepped structure after the side wall formwork is installed, a side wall pouring cavity is formed between the side wall formwork and an excavation surface, and the bottom of the manual feeding part is higher than the lower edge of the stepped structure, so that concrete can be poured layer by layer at the stepped structure through the manual feeding part.
2. The template suitable for pouring the side wall of the subway station with the stepped reverse construction seam as claimed in claim 1, wherein the shaped modules comprise a first shaped steel die and at least two second shaped steel dies; wherein,
the first shaping steel die and the at least two second shaping steel dies are arranged along the length direction of the template back rib; the first shaping steel die is provided with the manual feeding part, and the second shaping steel die is arranged below the first shaping steel die.
3. The template suitable for pouring of the side wall of the subway station with the stepped top-down construction seams as claimed in claim 2, wherein the outer contour of the manual feeding part is a transverse triangular prism structure, one side surface of the triangular prism structure is open, and the other side surface of the triangular prism structure is communicated with the first fixed steel template.
4. The template suitable for pouring the side wall of the stepped reverse construction seam subway station as claimed in claim 2, wherein each said sizing module is further provided with a pumping concrete inlet, and said pumping concrete inlet is located in the area below said manual feeding portion.
5. The template suitable for pouring the side wall of the stepped reverse construction seam subway station as claimed in claim 4, wherein one of said second shaped steel molds is provided with a pumping concrete inlet.
6. The template suitable for pouring of the side wall of the stepped reverse construction seam subway station as claimed in claim 5, wherein said pumping concrete inlet is a through hole formed in said second shaped steel die.
7. The template suitable for stepped reverse construction seam subway station side wall pouring according to claim 5, wherein a material inlet cover is hinged to the second shaped steel die, the material inlet cover is arranged in the area near the pumping concrete material inlet, and the material inlet cover can cover the pumping concrete material inlet.
8. The template suitable for pouring of the side wall of the stepped top-down construction seam subway station as claimed in claim 7, wherein said feeding port cover is hinged to said second shaped steel mold through a hinge.
9. The template suitable for pouring of the side wall of the stepped top-down construction seam subway station as claimed in claim 2, wherein said first shaped steel die and said second shaped steel die are fixedly connected to said template back rib respectively.
10. The template suitable for pouring of the side wall of the stepped reverse construction seam subway station as claimed in claim 2, wherein the size of the second shaped steel die in the length direction of the template back rib is not smaller than the size of the first shaped steel die in the length direction of the template back rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921567905.1U CN210766883U (en) | 2019-09-19 | 2019-09-19 | Template suitable for cascaded top-down construction seam subway station side wall is pour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921567905.1U CN210766883U (en) | 2019-09-19 | 2019-09-19 | Template suitable for cascaded top-down construction seam subway station side wall is pour |
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| Publication Number | Publication Date |
|---|---|
| CN210766883U true CN210766883U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921567905.1U Active CN210766883U (en) | 2019-09-19 | 2019-09-19 | Template suitable for cascaded top-down construction seam subway station side wall is pour |
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| Country | Link |
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| CN (1) | CN210766883U (en) |
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- 2019-09-19 CN CN201921567905.1U patent/CN210766883U/en active Active
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