CN111305247A - Installation process of box type foundation formwork on upper side of subway cover plate - Google Patents
Installation process of box type foundation formwork on upper side of subway cover plate Download PDFInfo
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- CN111305247A CN111305247A CN201911187851.0A CN201911187851A CN111305247A CN 111305247 A CN111305247 A CN 111305247A CN 201911187851 A CN201911187851 A CN 201911187851A CN 111305247 A CN111305247 A CN 111305247A
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- module
- formwork
- polystyrene foam
- eps polystyrene
- serve
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Sustainable Development (AREA)
- Environmental & Geological Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses an installation process of a box type foundation formwork on the upper side of a subway cover plate, which comprises the following steps: the wood template and the battens are pulled and connected through a split screw to form a module; steel pipes are laid on the inner side of the drawknot template in a grid shape to serve as reinforcing and supporting pieces inside the module; the method comprises the following steps that a batten is arranged outside a module in a surrounding mode to serve as an external reinforcing support, I-shaped steel is arranged outside the batten to serve as an external surrounding structure, and the limiting and reinforcing effects on the whole module are achieved; pouring an EPS polystyrene foam filling layer in the interlayer space below the module; reserving a manhole when a formwork is supported at the upper part of the formwork, and sealing after the EPS polystyrene foam filling layer is poured; compared with the existing formwork filling technology, the technical scheme has the advantages that the process is simple, the step flow is less, meanwhile, the good structural strength can be guaranteed, in addition, the EPS polystyrene foam material is used as the filler of the interlayer cavity, the settlement difference can be effectively reduced, and the lateral pressure of the seismic isolation foundation can be greatly reduced.
Description
Technical Field
The invention relates to a construction process of a building interlayer, in particular to an installation process of a box type foundation formwork on the upper side of a subway cover plate.
Background
Because the complication of subway upper cover space function for building structure also changes thereupon, in order to adapt to the function needs in space from top to bottom and avoid in later stage construction and use, heavy load direct action is at the vehicle section roof, thereby causes the fracture destruction of vehicle section roof. Therefore, the overhead layer is arranged on the vehicle section top plate to form a sandwich cavity, and the box type conversion layer and the vehicle section top plate are separated by the sandwich cavity to protect the vehicle section top plate. The interlayer cavity cannot support a bent and a template due to narrow space, and the cushion brick block easily causes load to be concentrated on the bottom cover plate, is easy to crack, cannot be detached from the template supporting panel and the like. In view of the problems and deficiencies of the prior art, there is a need for a novel and inventive apparatus and method that overcomes the deficiencies of the prior art.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an installation process of an upper side box type foundation formwork of a subway cover plate, aiming at the defects of the prior art.
The technical scheme is as follows: the invention relates to an installation process of a box type foundation formwork on the upper side of a subway cover plate, which is characterized in that: the method comprises the following steps:
(1) the wood template and the battens are pulled and connected through a split screw to form a module;
(2) steel pipes are laid on the inner side of the drawknot template in a grid shape to serve as reinforcing and supporting pieces inside the module;
(3) the method comprises the following steps that a batten is arranged outside a module in a surrounding mode to serve as an external reinforcing support, I-shaped steel is arranged outside the batten to serve as an external surrounding structure, and the limiting and reinforcing effects on the whole module are achieved;
(4) pouring an EPS polystyrene foam filling layer in the interlayer space below the module;
(5) and reserving a manhole when the formwork is supported on the upper part of the formwork, and sealing after the EPS polystyrene foam filling layer is poured.
Preferably, the inner wall bubbles of the EPS polystyrene foam filling layer are closed.
Preferably, the EPS polystyrene foam filling layer in the step (4) can be directly poured by manpower, or the prefabricated EPS polystyrene foam filling plate can be cut and filled on site.
Compared with the prior art, the invention has the following beneficial effects: (1) the EPS polystyrene foam material has closed inner wall bubbles which are not communicated with each other, small water absorption, good frost resistance and extremely light dead weight, and the sedimentation difference can be effectively reduced by using the EPS polystyrene foam material as a filler of an interlayer cavity; meanwhile, the lateral pressure of the shock insulation foundation can be greatly reduced due to the good self-supporting property;
(2) the EPS polystyrene foam construction can be carried out by manpower without special machinery, has high speed, is more suitable for places where large machinery is difficult to use, and can be processed and cut on site to meet the requirements of site terrain;
(3) compared with the existing formwork filling technology, the technical scheme has the advantages that the process is simple, the step flows are fewer, and meanwhile, the good structural strength can be guaranteed.
Drawings
Fig. 1 is a schematic node diagram of a box-type foundation formwork technique on an upper side of a TOD cover plate according to the present invention.
In the figure: 1. an EPS polystyrene foam filler layer; 2. oppositely pulling the screw rod; 3. wood block; 4. a wood template; 5. a steel pipe; 6. and (4) H-shaped steel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for convenience in describing and simplifying the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the present invention, the terms "mounted", "connected", and "connected" are used herein unless otherwise specifically stated or limited,
The terms "connected" and "fixed" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Example 1: the utility model provides an installation technology of side box basis formwork on subway apron which characterized in that: the method comprises the following steps:
(1) the wood template 4 and the batten 3 are combined into a module through a split screw 2;
(2) steel pipes 5 are laid on the inner side of the drawknot template in a grid shape to serve as reinforcing and supporting pieces inside the module;
(3) the battens 3 are arranged around the module to serve as external reinforcing supports, I-shaped steel 6 is arranged outside the battens 3 to serve as an external surrounding structure, and the limiting and reinforcing effects on the whole module are achieved;
(4) pouring an EPS polystyrene foam filling layer 1 in an interlayer space below the module;
(5) and reserving a manhole when the formwork is supported on the upper part of the formwork, and sealing after the EPS polystyrene foam filling layer 1 is poured.
The bubbles on the inner wall of the EPS polystyrene foam filling layer 1 are closed.
In the step (4), the EPS polystyrene foam filling layer 1 can be directly poured by manpower, and prefabricated EPS polystyrene foam filling plates can also be cut and filled on site.
Compared with the prior art, the invention has the following beneficial effects: (1) the EPS polystyrene foam material has closed inner wall bubbles which are not communicated with each other, small water absorption, good frost resistance and extremely light dead weight, and the sedimentation difference can be effectively reduced by using the EPS polystyrene foam material as a filler of an interlayer cavity; meanwhile, the lateral pressure of the shock insulation foundation can be greatly reduced due to the good self-supporting property;
(2) the EPS polystyrene foam construction can be carried out by manpower without special machinery, has high speed, is more suitable for places where large machinery is difficult to use, and can be processed and cut on site to meet the requirements of site terrain;
(3) compared with the existing formwork filling technology, the technical scheme has simple process, less step flows and good structural strength
In the present invention, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may be directly contacting the first feature and the second feature or indirectly contacting the first feature and the second feature through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only 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 lower level than the second feature. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," or the like, means 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.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. The utility model provides an installation technology of side box basis formwork on subway apron which characterized in that: the method comprises the following steps:
(1) the wood template and the battens are pulled and connected through a split screw to form a module;
(2) steel pipes are laid on the inner side of the drawknot template in a grid shape to serve as reinforcing and supporting pieces inside the module;
(3) the method comprises the following steps that a batten is arranged outside a module in a surrounding mode to serve as an external reinforcing support, I-shaped steel is arranged outside the batten to serve as an external surrounding structure, and the limiting and reinforcing effects on the whole module are achieved;
(4) pouring an EPS polystyrene foam filling layer in the interlayer space below the module;
(5) and reserving a manhole when the formwork is supported on the upper part of the formwork, and sealing after the EPS polystyrene foam filling layer is poured.
2. The installation process of the box type foundation formwork on the upper side of the subway cover plate as claimed in claim 1, wherein: and the bubbles on the inner wall of the EPS polystyrene foam filling layer are closed.
3. The installation process of the box type foundation formwork on the upper side of the subway cover plate as claimed in claim 1, wherein: in the step (4), the EPS polystyrene foam filling layer can be directly poured by manpower, and the prefabricated EPS polystyrene foam filling plate can also be cut and filled on site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187851.0A CN111305247A (en) | 2019-11-28 | 2019-11-28 | Installation process of box type foundation formwork on upper side of subway cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187851.0A CN111305247A (en) | 2019-11-28 | 2019-11-28 | Installation process of box type foundation formwork on upper side of subway cover plate |
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| Publication Number | Publication Date |
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| CN111305247A true CN111305247A (en) | 2020-06-19 |
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| CN201911187851.0A Pending CN111305247A (en) | 2019-11-28 | 2019-11-28 | Installation process of box type foundation formwork on upper side of subway cover plate |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201254832Y (en) * | 2008-09-10 | 2009-06-10 | 中国建筑第四工程局有限公司 | Self-supporting template apparatus for conversion layer structure |
| CN105016768A (en) * | 2015-06-29 | 2015-11-04 | 河南华泰建材开发有限公司 | Lightweight foam soil applied in subway station top board backfilling, and production method thereof |
| CN205875202U (en) * | 2016-06-08 | 2017-01-11 | 中铁十四局集团有限公司 | Cast -in -place frame tunnel formwork system of high water content ultra -soft soil box multi -chambered |
| US9631375B1 (en) * | 2016-07-11 | 2017-04-25 | 308, Llc | Shock absorbing interlocking floor system |
| CN209211476U (en) * | 2018-10-25 | 2019-08-06 | 广东省建筑构件工程有限公司 | A kind of hardened structure of raft of subway tunnel upper cover deep basal pit |
| CN110318426A (en) * | 2019-08-07 | 2019-10-11 | 哈尔滨工业大学 | A kind of assembled Steel-concrete Composite subway station and assembly method |
-
2019
- 2019-11-28 CN CN201911187851.0A patent/CN111305247A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201254832Y (en) * | 2008-09-10 | 2009-06-10 | 中国建筑第四工程局有限公司 | Self-supporting template apparatus for conversion layer structure |
| CN105016768A (en) * | 2015-06-29 | 2015-11-04 | 河南华泰建材开发有限公司 | Lightweight foam soil applied in subway station top board backfilling, and production method thereof |
| CN205875202U (en) * | 2016-06-08 | 2017-01-11 | 中铁十四局集团有限公司 | Cast -in -place frame tunnel formwork system of high water content ultra -soft soil box multi -chambered |
| US9631375B1 (en) * | 2016-07-11 | 2017-04-25 | 308, Llc | Shock absorbing interlocking floor system |
| CN209211476U (en) * | 2018-10-25 | 2019-08-06 | 广东省建筑构件工程有限公司 | A kind of hardened structure of raft of subway tunnel upper cover deep basal pit |
| CN110318426A (en) * | 2019-08-07 | 2019-10-11 | 哈尔滨工业大学 | A kind of assembled Steel-concrete Composite subway station and assembly method |
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Application publication date: 20200619 |