CN114855868B - Structure for forming station side wall by combining omega-shaped plugboards with convex wall posts and construction method - Google Patents
Structure for forming station side wall by combining omega-shaped plugboards with convex wall posts and construction method Download PDFInfo
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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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
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention relates to the technical field of subway engineering, and discloses a structure and a construction method for forming a station side wall by combining a similar omega-shaped plugboard with a convex wall post, wherein the structure comprises a prefabricated wall post, a similar omega-shaped prefabricated plugboard, a post-pouring layer of a wall back, a wall post bracket, a prefabricated middle post, a prefabricated middle longitudinal beam, a prefabricated top longitudinal beam, a superposed middle plate, a superposed top plate and a steel bar truss; the invention provides the prefabricated wall column, the wall column bracket, the omega-shaped prefabricated plugboard and other components, can realize the construction without templates and scaffolds on the construction site, improves the efficacy and simultaneously avoids the problems of difficult formwork support, large risk and the like; the invention is suitable for assembled subway stations and similar projects, and has wide application range.
Description
Technical Field
The invention relates to the technical field of subway construction, in particular to a structure and a construction method for forming a station side wall by combining omega-shaped plugboards with convex wall columns.
Background
At present, the conventional cast-in-situ method is used for constructing subway stations and sections, has the problems of high energy consumption, high pollution, low efficiency and the like, and is not suitable for the current novel urban, industrialized and informationized development requirements of the country.
Aiming at the construction of a side wall structure of a subway station, a full cast-in-place mode or an assembly mode is generally adopted, the full cast-in-place mode is mainly based on-site manual and wet operation, the quality is difficult to effectively control, the construction of the side wall, the top plate and the middle plate mainly adopts a scaffold scheme, the construction operation space is narrow, the construction efficiency is low, the construction risk is high, the overall comprehensive benefit of construction and construction is low, the proposal of an assembly type construction mode of the subway effectively solves the problems, but the construction method is limited by the later study starting of the assembly type structure of the subway, the engineering experience is insufficient, and the prior art of the assembly type structure of the side wall of the subway station generally adopts a shield segment assembly design thought for assembling the whole parts of a member into a ring in a segmented mode.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a structure and a construction method for forming a station side wall by combining omega-shaped plugboards with convex wall posts, which are used for solving the problems in the prior art.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a structure and construction method of a kind of omega-shaped picture peg combination convex wall post formation station side wall, includes prefabricated wall post, the prefabricated picture peg of type omega, back of the wall post-cast layer, wall post bracket, prefabricated center pillar, prefabricated well (top) longeron, coincide well (top) board and steel bar truss, the prefabricated picture peg of type omega passes through bolt and prefabricated wall post fixed connection, be provided with the steel bar truss on the prefabricated picture peg of type omega, just the back of the wall post-cast layer is located between foundation ditch lateral wall and the prefabricated picture peg of type omega to form the side wall with the prefabricated picture peg of type omega, and the concrete junction between them carries out the chiseling treatment, the wall post bracket sets up on the prefabricated wall post, and is located the below of coincide well (top) board, just the wall post bracket is fixed after touching the coincide well (top) board, the prefabricated center pillar is located between the prefabricated wall post, the bottom and the bottom of prefabricated center pillar is fixed, the prefabrication center pillar is in with coincide well (top) board respectively, and the junction of prefabrication center pillar and well (top) board is provided with coincide well (top) longeron.
Preferably, the prefabricated wall posts are in a convex shape and are of a prefabricated reinforced concrete structure and fixedly connected to the bottom plate through grouting sleeves.
Preferably, the omega-shaped prefabricated plugboard is manufactured in a factory, the whole shape of the omega-shaped prefabricated plugboard is similar to elongated omega characters, the omega-shaped prefabricated plugboard is divided into standard blocks and non-standard blocks according to building modulus, the standard block dividing size and thickness design are determined according to stress, transportation, hoisting and other conditions, and when the standard block is not matched with the actual engineering building modulus after being assembled, the omega-shaped prefabricated plugboard is realized by adopting a non-standard block combination with flexible size.
Preferably, the vertical seam of the omega-shaped prefabricated plugboard adopts a form of a close-spliced seam, and a bent bolt for connection is arranged at the seam.
Preferably, the steel bar truss consists of main bars, distributing bars, lacing wires and the like, is connected to the back of the omega-shaped prefabricated plugboard in a binding or welding mode, and forms a cast-in-situ reinforced concrete stress structure with the concrete of the post-pouring layer of the wall back.
Preferably, the post-cast layer of the wall forms a station side wall structure together with the omega-shaped prefabricated plugboard and the prefabricated wall post after the prefabricated wall post and the omega-shaped prefabricated plugboard are installed and fixed.
Preferably, the bottom plate and the side sill can be formed by two modes, namely, an assembly mode and a concrete cast-in-place mode.
Preferably, the construction method of the prefabricated wall column and omega-shaped prefabricated plugboard combined subway station side wall comprises the following steps of:
the construction method comprises the following steps:
s01, early preparation work of required components: constructing a bottom plate and a bottom longitudinal beam after the foundation pit excavation supporting is completed, simultaneously manufacturing prefabricated wall columns, omega-shaped prefabricated plugboards and other components in a factory mode, and transporting the prefabricated wall columns, the omega-shaped prefabricated plugboards and other components to the site in batches;
s02, mounting a prefabricated wall column: the prefabricated wall column is connected with the bottom plate by a grouting sleeve;
s03, field assembly of a negative two-layer side wall omega-shaped prefabricated plugboard: assembling a negative two-layer side wall omega-shaped prefabricated plugboard on site, wherein the two omega-shaped prefabricated plugboards are connected by adopting bent bolts, and the omega-shaped prefabricated plugboards are connected with prefabricated wall posts by adopting bolts;
s04, pouring a post-pouring layer of the wall back;
s05, installing prefabricated middle stringers in prefabricated middle columns and prefabricated middle (top) stringers: the prefabricated center column is connected with the prefabricated center (top) longitudinal beam in a grouting sleeve mode, the prefabricated center column is hoisted and installed after the prefabricated center longitudinal beam of the prefabricated center (top) longitudinal beam is installed, the prefabricated center column is installed on a wall column bracket and a longitudinal beam bracket, and concrete is poured after the installation is completed to form a middle plate laminated slab of the laminated center (top) plate;
s06, completing the structural construction of the negative one layer: repeating the steps S03-S05 to finish the construction of the negative one-layer structure;
s07, starting construction of an internal structure: and finishing the construction of the main body structure, and performing the construction of the internal structure.
(III) beneficial effects
Compared with the prior art, the invention provides a structure and a construction method for forming a station side wall by combining omega-shaped plugboards and convex wall posts, which have the following beneficial effects:
1. the omega-shaped prefabricated plugboard provided by the invention is provided with the back reinforcement cage, so that the on-site reinforcement binding is directly and effectively avoided, the structural construction quality is improved, and the construction efficiency is improved.
2. The invention provides components such as the prefabricated wall column, the wall column bracket, the omega-shaped prefabricated plugboard and the like, can realize the construction without templates and scaffolds on the construction site, improves the efficacy and simultaneously avoids the problems of difficult formwork support, high risk and the like.
3. The invention is suitable for assembled subway stations and similar projects, and has wide application range.
Drawings
FIG. 1 is a plan view of the present invention;
FIG. 2 is a cross-sectional view of the structure of the omega-shaped prefabricated insert plate of the present invention;
FIG. 3 is a cross-sectional view of the structure of the prefabricated stud of the present invention;
FIG. 4 is a top plan view of the structure of the present invention;
FIG. 5 is a plan view of a connection node of a prefabricated stud and an omega-like prefabricated insert plate of the present invention;
FIG. 6 is a flow chart of the method of the present invention.
In the figure: 1. prefabricating wall posts; 2. omega-like prefabricated plugboards; 3. pouring a layer on the back of the wall; 4. wall column bracket; 5. prefabricating a middle column; 6. prefabricating a middle (top) longitudinal beam; 7. laminating the middle (top) plate; 8. steel bar truss.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a technical scheme, a structure and a construction method for forming a station side wall by combining omega-shaped plugboards and convex wall posts, wherein the structure comprises prefabricated wall posts 1, omega-shaped prefabricated plugboards 2, wall post-cast layers 3, wall post brackets 4, prefabricated middle posts 5, prefabricated middle (top) longitudinal beams 6, superposed middle (top) plates 7 and steel bar trusses 8, the omega-shaped prefabricated plugboards 2 are fixedly connected with the prefabricated wall posts 1 through bolts, the steel bar trusses 8 are arranged on the omega-shaped prefabricated plugboards 2, the wall post-cast layers 3 are positioned between the side walls of foundation pits and the omega-shaped prefabricated plugboards 2 and form side walls with the omega-shaped prefabricated plugboards 2, a concrete connecting surface between the wall post-cast layers is subjected to roughening treatment, the wall post brackets 4 are arranged on the prefabricated wall posts 1 and are positioned below the superposed middle (top) plates 7, the prefabricated middle posts 5 are vertical supporting structures of the superposed middle (top) plates 7, the wall post-cast brackets 4 are fixedly connected with the middle (top) plates 7 after being contacted, the bottom of the prefabricated middle posts 5 are fixedly connected with the prefabricated wall posts 1, the bottom of the prefabricated middle posts 5 are fixedly connected with bottom plates 5 respectively, and the superposed middle (top) plates 7 are respectively arranged at the superposed middle (top) longitudinal beams and the superposed middle (top) plates 7).
Preferably, the prefabricated wall column 1 is in a convex shape and is of a prefabricated reinforced concrete structure, and is fixedly connected to the bottom plate through a grouting sleeve, the prefabricated wall column 1 can be flexibly segmented according to on-site hoisting conditions, transportation conditions and the like, can be integrally prefabricated, can be prefabricated in blocks, can be assembled on site, is very flexible in connection of adjacent blocks, and can be in a bolting mode or a grouting sleeve mode and the like.
Preferably, the omega-shaped prefabricated plugboard 2 is manufactured in a factory, is divided into standard blocks and non-standard blocks according to building modulus, the block size and thickness of the standard blocks are determined according to stress, transportation, hoisting and other conditions, and when the standard blocks are not matched with the actual engineering building modulus after being assembled, the standard blocks are combined by the non-standard blocks with flexible sizes.
Preferably, the vertical seam of the omega-shaped prefabricated plugboard 2 is in a form of a close-spliced seam, and a bent bolt for connection is arranged at the seam.
Preferably, the steel bar truss 8 is composed of main bars, distribution bars, lacing wires and the like, is connected to the back of the omega-shaped prefabricated plugboard 2 in a binding or welding mode, and forms a cast-in-situ reinforced concrete stressed structure with the concrete of the wall back post-pouring layer 3.
Preferably, the post-pouring layer 3 of the wall back forms a station side wall structure together with the omega-shaped prefabricated plugboard 2 and the prefabricated wall column 1 after the prefabricated wall column 1 and the omega-shaped prefabricated plugboard 2 are installed and fixed.
Preferably, the bottom plate and the side sill can be formed by two modes, namely, an assembly mode and a concrete cast-in-place mode.
Preferably, the construction method of the prefabricated wall column and omega-shaped prefabricated plugboard combined subway station side wall comprises the following steps of:
the construction method comprises the following steps:
s01, early preparation work of required components: constructing a bottom plate and a bottom longitudinal beam after the foundation pit excavation supporting is completed, simultaneously manufacturing prefabricated wall columns 1, omega-shaped prefabricated plugboards 2 and other components in a factory mode, and transporting the components to the site in batches;
s02, mounting the prefabricated wall stud 1: the prefabricated wall column 1 is connected with the bottom plate by a grouting sleeve;
s03, field assembly of the negative two-layer side wall omega-shaped prefabricated plugboard 2: assembling a negative two-layer side wall omega-shaped prefabricated plugboard 2 on site, wherein the two omega-shaped prefabricated plugboards 2 are connected by adopting bent bolts, and the omega-shaped prefabricated plugboard 2 is connected with the prefabricated wall column 1 by adopting bolts;
s04, pouring a post-pouring layer 3 of the wall back;
s05, mounting prefabricated middle stringers in prefabricated middle columns 5 and prefabricated middle (top) stringers 6: the prefabricated center column 5 is connected with the prefabricated center (top) longitudinal beam 6 in a grouting sleeve mode, the prefabricated center column 5 is hoisted and installed after the prefabricated center (top) longitudinal beam 6 is installed, the prefabricated center column 5 is installed on the wall column bracket 4 and the longitudinal beam bracket, and concrete is poured after the installation is completed to form a middle plate laminated slab of the laminated center (top) plate 7;
s06, completely constructing a negative one-layer structure: repeating the steps S03-S05 to finish the construction of the negative one-layer structure;
s07, starting construction of an internal structure: and finishing the construction of the main body structure, and performing the construction of the internal structure.
Embodiments of the present device:
step one: early preparation of the required components: constructing a bottom plate and a bottom longitudinal beam after the foundation pit excavation supporting is completed, simultaneously manufacturing prefabricated wall columns 1, omega-shaped prefabricated plugboards 2 and other components in a factory mode, and transporting the components to the site in batches;
step two: installation of prefabricated wall stud 1: the prefabricated wall column 1 is connected with the bottom plate by a grouting sleeve;
step three: on-site assembly of a negative two-layer side wall omega-shaped prefabricated plugboard 2: assembling a negative two-layer side wall prefabricated plugboard 2 on site, wherein two omega-shaped prefabricated plugboards 2 are connected by adopting bent bolts, and the omega-shaped prefabricated plugboards 2 are connected with a prefabricated wall column 1 by adopting bolts;
step four: pouring a wall back pouring layer 3;
step five: the method comprises the steps of installing prefabricated center posts 5 and prefabricated center stringers in prefabricated center (top) stringers 6, wherein the prefabricated center posts 5 are connected with the prefabricated center (top) stringers 6 in a grouting sleeve mode, hoisting and installing the prefabricated center posts 5 after the installation of the prefabricated center stringers of the prefabricated center (top) stringers 6 is completed, installing the prefabricated center posts 5 on wall post brackets 4 and stringer brackets, and pouring concrete after the installation is completed to form a middle plate laminated plate of a laminated center (top) plate 7;
step six: and (3) completely carrying out construction of a negative one-layer structure: and repeating the steps S03-S05 until the construction of the negative one-layer structure is completed.
Step seven: and (3) starting construction of an internal structure: and finishing the construction of the main body structure, and performing the construction of the internal structure.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The structure of station side wall is formed to the convex wall post of class omega shape picture peg combination, its characterized in that: the wall column bracket is arranged on the prefabricated wall column, and is positioned below the overlapping middle plate and the overlapping top plate, the wall column bracket is fixed after being contacted with the overlapping middle plate and the overlapping top plate, the prefabricated middle column is positioned between the prefabricated wall column and the overlapping middle plate, the bottom of the prefabricated middle column is fixed with the bottom plate, the prefabricated middle column is respectively inserted with the overlapping middle plate and the overlapping top plate, and the prefabricated middle column and the overlapping top plate are both provided with the prefabricated middle beam and the prefabricated top longitudinal beam.
2. The structure of the station side wall formed by the omega-shaped plugboard combined convex wall column according to claim 1, which is characterized in that: the prefabricated wall column is in a convex shape and is of a prefabricated reinforced concrete structure and fixedly connected to the bottom plate through the grouting sleeve.
3. The structure of the station side wall formed by the omega-shaped plugboard combined convex wall column according to claim 1, which is characterized in that: the omega-shaped prefabricated plugboard is manufactured in a factory, the whole shape of the omega-shaped prefabricated plugboard is similar to elongated omega characters, the omega-shaped prefabricated plugboard is divided into standard blocks and non-standard blocks according to building modulus, the standard block dividing size and thickness design are determined according to stress size, transportation and hoisting conditions, and when the standard blocks are unmatched with the actual engineering building modulus after being assembled, the omega-shaped prefabricated plugboard is realized by adopting a non-standard block combination with flexible size.
4. The structure of the station side wall formed by the omega-shaped plugboard combined convex wall column according to claim 1, which is characterized in that: the vertical seam of the omega-shaped prefabricated plugboard adopts a close-spliced seam mode, and a bent bolt for connection is arranged at the seam.
5. The structure of the station side wall formed by the omega-shaped plugboard combined convex wall column according to claim 1, which is characterized in that: the steel bar truss consists of main bars, distributing bars and lacing wires, is connected to the back of the omega-shaped prefabricated plugboard in a binding or welding mode, and forms a cast-in-situ reinforced concrete stress structure with the concrete of the post-cast layer of the wall back.
6. The structure of the station side wall formed by the omega-shaped plugboard combined convex wall column according to claim 1, which is characterized in that: and the post-cast layer of the wall back is cast-in-situ after the prefabricated wall posts and the omega-shaped prefabricated plugboards are installed and fixed, and forms a station side wall structure together with the omega-shaped prefabricated plugboards and the prefabricated wall posts.
7. The structure of the station side wall formed by the omega-shaped plugboard combined convex wall column according to claim 1, which is characterized in that: the bottom plate and the bottom longitudinal beam can be formed by the following two modes, wherein one mode is assembly type, and the other mode is concrete cast-in-situ type.
8. The construction method applied to the structure of the station side wall formed by the omega-shaped plugboard combined convex wall column of claim 1 is characterized in that: the construction method comprises the following steps:
s01, early preparation work of required components: constructing a bottom plate and a bottom longitudinal beam after the foundation pit excavation supporting is completed, simultaneously manufacturing prefabricated wall columns and omega-shaped prefabricated plugboard components in a factory mode, and transporting the prefabricated wall columns and omega-shaped prefabricated plugboard components to the site in batches;
s02, mounting a prefabricated wall column: the prefabricated wall column is connected with the bottom plate by a grouting sleeve;
s03, field assembly of a negative two-layer side wall omega-shaped prefabricated plugboard: assembling a negative two-layer side wall omega-shaped prefabricated plugboard on site, wherein the two omega-shaped prefabricated plugboards are connected by adopting bent bolts, and the omega-shaped prefabricated plugboards are connected with prefabricated wall posts by adopting bolts;
s04, pouring a post-pouring layer of the wall back;
s05, installing prefabricated middle stringers in prefabricated middle columns, prefabricated middle stringers and prefabricated top stringers: the prefabricated center column is connected with the prefabricated center longitudinal beam and the prefabricated top longitudinal beam in a grouting sleeve mode, the prefabricated center column is hoisted and installed after the installation of the prefabricated center longitudinal beam and the prefabricated top longitudinal beam is completed, the prefabricated center column is installed on a wall column bracket and a longitudinal beam bracket, and concrete is poured after the installation is completed to form a middle plate laminated slab of a laminated middle plate and a laminated top plate;
s06, completing the structural construction of the negative one layer: repeating the steps S03-S05 until the construction of the negative one-layer structure is completed;
s07, starting construction of an internal structure: and finishing the construction of the main body structure, and performing the construction of the internal structure.
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| JP2889840B2 (en) * | 1995-05-31 | 1999-05-10 | 戸田建設株式会社 | Construction method of underground outer peripheral wall |
| CN204151835U (en) * | 2014-10-27 | 2015-02-11 | 南京长江都市建筑设计股份有限公司 | The vertical piece structure of connection of the basement wall and cast-in-place buttress |
| CN109235499B (en) * | 2018-07-20 | 2021-01-29 | 广州地铁设计研究院股份有限公司 | Open-cut underground building structure assembly type construction method |
| CN109024679A (en) * | 2018-08-29 | 2018-12-18 | 山东大学 | A kind of supporting and the integrated system of Pipe rack and construction method |
| CN209620330U (en) * | 2018-10-18 | 2019-11-12 | 中清大科技股份有限公司 | A kind of non-dismantling formwork concrete shear wall structure building |
| CN110512647B (en) * | 2019-08-28 | 2021-06-25 | 北京工业大学 | Partial assembly type subway station structure design and construction method |
| CN111456088A (en) * | 2020-05-12 | 2020-07-28 | 中交哈尔滨地铁投资建设有限公司 | Subway station with overlapped assembly type structure and assembly construction method |
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| 张士屹 ; .地铁车站侧墙与板同时浇注施工方法.中国新技术新产品.2008,(第18期), * |
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