CN111501778B - Integrated construction method for underground structure side wall and inner wall by adopting underground continuous wall - Google Patents
Integrated construction method for underground structure side wall and inner wall by adopting underground continuous wall Download PDFInfo
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- CN111501778B CN111501778B CN202010345290.9A CN202010345290A CN111501778B CN 111501778 B CN111501778 B CN 111501778B CN 202010345290 A CN202010345290 A CN 202010345290A CN 111501778 B CN111501778 B CN 111501778B
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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Abstract
The invention discloses an integrated construction method for adopting an underground continuous wall for an underground structure side wall and an inner wall, which comprises the following steps of A, manufacturing the underground continuous wall; b, manufacturing a crown beam; c, excavating earthwork and an inner wall opening; d, manufacturing a wall-against floor slab frame or a steel waist beam; and E, constructing the residual main body structure. The side wall and the inner wall used as the inner support are constructed by adopting an underground continuous wall construction method to form a whole as an underground building permanent structure, and the crown beam, the wall-leaning floor slab frame or the steel waist beam are added to increase the integral rigidity of the structure, so that a coordinately stressed whole is formed, and larger horizontal bearing capacity and integral rigidity of the structure can be provided; the material waste caused by the fact that the temporary inner support needs to be installed and removed in the traditional construction mode is avoided, the construction process is simplified, the earthwork does not need to wait for the formation strength of the inner support concrete, and the construction progress can be accelerated.
Description
Technical Field
The invention relates to the technical field of engineering construction, in particular to a construction method of a side wall and an inner support of a foundation pit.
Background
When a large foundation pit is constructed, an underground enclosure is usually constructed firstly, the enclosure structure adopts a rectangular frame structure, and a horizontal reinforced concrete beam or a steel pipe column is added in the enclosure structure to serve as a temporary internal support for resisting soil pressure; and excavating the earth, and finally constructing an underground permanent building structure. The main problems of the construction mode are as follows: (1) the temporary internal support adopts a reinforced concrete beam or a steel pipe column, the horizontal thrust is small, and instability is possible to cause foundation pit collapse; (2) the temporary internal support needs to be cut off after the main body structure is finished, so that building materials are wasted; (3) the construction process is complex, the enclosure structure, the temporary internal support and the underground permanent building structure are constructed in sequence, each layer of soil body needs to be excavated after the construction of the upper internal support is finished, and the whole construction time of excavation of the foundation pit is long.
Disclosure of Invention
The invention aims to provide an integrated construction method for adopting an underground continuous wall for the side wall and the inner wall of an underground structure, which simplifies the construction process, provides larger horizontal bearing capacity and integral structural rigidity before and after earthwork excavation, omits an underground enclosing structure, is used as an underground permanent building structure, reduces the waste of building materials and shortens the construction period of earthwork excavation.
Therefore, the technical scheme adopted by the invention is as follows: an integrated construction method for adopting an underground continuous wall for an underground structure side wall and an inner wall comprises the following steps:
step A, manufacturing an underground continuous wall;
the underground continuous wall is composed of a side wall of a rectangular frame and an inner wall which is vertically arranged in the side wall and divides an underground space into a plurality of independent compartments, the top surface of the inner wall is flush with the top surface of the side wall, the depth of the side wall is greater than that of the inner wall, the underground continuous wall is integrally manufactured by transverse reinforced concrete sections, and the side wall and the inner wall form an integral underground continuous wall;
b, manufacturing a crown beam;
manufacturing a crown beam at the top of the underground continuous wall, wherein the crown beam completely covers the top of the side wall and the top of the inner wall, so that the underground continuous wall forms a whole;
c, excavating earthwork and an inner wall opening;
excavating earthwork after the crown beam concrete meets the requirement; when the earthwork elevation is lower than the designed opening of the inner wall, chiseling the opening, and then using cement mortar to decorate the opening edge;
d, manufacturing a wall-against floor slab frame or a steel waist beam;
when earth is excavated to the elevation position of a floor slab, a floor slab frame with the periphery close to the wall and the middle hollowed is manufactured in the compartment to form a circle of internal support which is used as a vertical transportation channel; or, the steel pipe columns or the section steel are used as the steel waist beams, the two steel waist beams are arranged on the inner walls of the side walls in a manner of being opposite to each other close to the wall, after each steel waist beam horizontally and transversely penetrates through all the inner walls, two ends of each steel waist beam are supported on the inner walls of the side walls, and therefore all the inner walls and the side walls are connected in series;
e, constructing the residual main body structure;
after the earthwork is excavated to the bottom, the rest main body structures including beams, columns, walls, floor slabs and stairs are constructed from bottom to top.
Preferably, in the step A, when the reinforcement cage of the inner wall is manufactured, no reinforcement is arranged at the designed hole of the inner wall, a foam board is used for filling, and a wood template or a plastic mould is covered on the surface; or, glass fiber reinforced bars are arranged at the designed hole of the inner wall to replace common reinforced bars, so that the strength and rigidity of the reinforcement cage are ensured.
Preferably, in the step a, the whole underground continuous wall is manufactured in sections by taking 4-6 meters as a section along the length direction.
The invention has the beneficial effects that:
(1) the side wall and the inner wall serving as the inner support are integrally constructed by adopting the underground continuous wall, so that the underground integral continuous wall simultaneously serves as an underground enclosure structure, the inner support and an underground permanent building structure, the independent construction of the underground enclosure structure and the inner support is omitted, and the working procedure is simplified;
(2) the inner wall serves as an inner support and also serves as a partition wall of a subsequent underground permanent building structure, and on the basis of the inner wall, a crown beam, a wall-against floor slab frame or a steel waist beam are added to increase the overall rigidity of the structure to form a cooperatively stressed whole, so that larger horizontal bearing capacity and overall rigidity of the structure can be provided, and collapse and instability of a foundation pit caused by small horizontal thrust are avoided;
(3) the material waste caused by the fact that the temporary inner support needs to be installed and removed in the traditional construction mode is avoided, the construction process is simplified, the earthwork does not need to wait for the formation strength of the inner support concrete, and the construction progress can be accelerated.
Drawings
FIG. 1 is a schematic cut-away view of step A of the present invention.
FIG. 2 is a schematic cut-away view of step B of the present invention.
FIG. 3 is a schematic cut-away view of step C of the present invention.
FIG. 4 is a schematic cut-away view of step D of the present invention.
FIG. 5 is a schematic cut-away view of step E of the present invention.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1, an integrated construction method for an underground structure side wall and an inner wall by using an underground continuous wall includes the following steps:
and step A, manufacturing the underground continuous wall.
As shown in fig. 1, the underground continuous wall is composed of a side wall 1 and a plurality of inner walls 2. The side wall 1 adopts a rectangular frame structure; the inner wall 2 is vertically arranged in the side wall 1 and divides the underground space into a plurality of independent compartments. The top surface of the inner wall 2 is flush with the top surface of the side wall 1, the depth of the side wall 1 is greater than that of the inner wall 2, and the depth of the side wall 1 is 2-3 times that of the inner wall 2.
The integral underground continuous wall is made of reinforced concrete in transverse sections, and the side wall and the inner wall form the integral underground continuous wall. Namely, the underground continuous wall is poured in sections, but the side wall and the inner wall are finally poured into a whole. Preferably, in step a, the underground diaphragm wall is manufactured in sections by taking every 4 to 6 meters in length direction.
In addition, as shown in fig. 3, in the step a, when the reinforcement cage for the inner wall is manufactured, in order to pre-crack the opening 4 on the inner wall 2, no reinforcement is arranged at the designed opening of the inner wall, a foam board is used for filling, and a wood template or a plastic mold is covered on the surface; or, glass fiber reinforced bars are arranged at the designed hole of the inner wall to replace common reinforced bars, so that the strength and rigidity of the reinforcement cage are ensured. Usually, when the hole is small, the hole is filled by adopting a foam board, and the surface of the hole is reserved in a mode of covering a wood template or a plastic mould; when the opening is large, in order to ensure the strength and rigidity of the reinforcement cage, the glass fiber reinforcement is adopted to replace the common reinforcement, so that subsequent hole drilling is facilitated.
And step B, manufacturing the crown beam.
As shown in fig. 2, the top of the underground continuous wall is provided with the crown beam 3, and the top of the side wall 1 and the top of the inner wall 2 are completely covered by the crown beam 3, so that the underground continuous wall is integrated, and the integral strength of the underground continuous wall which is cast in sections is better.
And C, excavating earthwork and an inner wall opening.
As shown in fig. 3, after the crown beam concrete meets the requirements, excavating earthwork; and when the earthwork elevation is lower than the designed opening of the inner wall, chiseling the opening 4, and then using cement mortar to decorate the opening edge.
D, manufacturing a wall-against floor slab frame or a steel waist beam;
as shown in fig. 4, in order to strengthen the connection between the underground continuous walls and enable the underground continuous walls to form an integral common stress, when the earthwork is excavated to the elevation position of the floor slab, a floor slab frame 5 with the periphery close to the wall and the middle hollowed is manufactured in the compartment to form a circle of internal support which is used as a vertical transportation channel; or, the steel pipe column or the section steel is adopted as the steel waist beam 6, the two steel waist beams are arranged on the inner wall of the side wall close to the wall oppositely, after each steel waist beam horizontally and transversely penetrates through all the inner walls, two ends of each steel waist beam are supported on the inner wall of the side wall, and therefore all the inner walls and the side wall are connected in series.
And E, constructing the residual main body structure.
As shown in fig. 5, after the earth is excavated to the bottom, the remaining main structure including beams, columns, walls, floors, and stairs is constructed from bottom to top.
If the steel wale is added in the step D, the steel wale can be removed together when the rest main body structure is constructed.
Claims (3)
1. An integrated construction method for adopting an underground continuous wall for an underground structure side wall and an inner wall is characterized by comprising the following steps:
step A, manufacturing an underground continuous wall;
the underground continuous wall comprises a side wall (1) with a rectangular frame and an inner wall (2) which is vertically arranged in the side wall and divides an underground space into a plurality of independent compartments, the top surface of the inner wall is flush with the top surface of the side wall, the depth of the side wall is greater than that of the inner wall, the underground continuous wall is integrally manufactured by reinforced concrete in a transverse segmentation manner, and the side wall and the inner wall form an integral underground continuous wall;
b, manufacturing a crown beam;
manufacturing a crown beam (3) at the top of the underground continuous wall, wherein the crown beam completely covers the top of the side wall and the top of the inner wall, so that the underground continuous wall is formed into a whole;
c, excavating earthwork and an inner wall opening;
excavating earthwork after the crown beam concrete meets the requirement; when the earthwork elevation is lower than the designed opening of the inner wall, the opening (4) is chiseled open, and then the edge opening of the opening is decorated by using cement mortar;
d, manufacturing a wall-against floor slab frame or a steel waist beam;
when earth is excavated to the elevation position of a floor slab, a floor slab frame (5) with the periphery close to the wall and the middle hollowed is manufactured in the compartment to form a circle of internal support which is used as a vertical transportation channel; or, a steel pipe column or profile steel is adopted as the steel waist beam (6), the two steel waist beams are arranged on the inner wall of the side wall close to the wall oppositely, after each steel waist beam horizontally and transversely penetrates through all the inner walls, two ends of each steel waist beam are supported on the inner wall of the side wall, and therefore all the inner walls and the side wall are connected in series;
e, constructing the residual main body structure;
after the earthwork is excavated to the bottom, the rest main body structures including beams, columns, walls, floor slabs and stairs are constructed from bottom to top.
2. The integrated construction method for the underground structure side wall and the inner wall by the underground continuous wall according to claim 1, is characterized in that: step A, when manufacturing an inner wall reinforcement cage, arranging no reinforcement at a designed opening of an inner wall, filling the reinforcement with a foam board, and covering the surface with a wood template or a plastic mold; or, glass fiber reinforced bars are arranged at the designed hole of the inner wall to replace common reinforced bars, so that the strength and rigidity of the reinforcement cage are ensured.
3. The integrated construction method for the underground structure side wall and the inner wall by the underground continuous wall according to claim 1 or 2, characterized in that: in the step A, the whole underground continuous wall is manufactured in sections by taking every 4-6 meters as a section along the length direction.
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| CN202010345290.9A CN111501778B (en) | 2020-04-27 | 2020-04-27 | Integrated construction method for underground structure side wall and inner wall by adopting underground continuous wall |
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| CN111501778A CN111501778A (en) | 2020-08-07 |
| CN111501778B true CN111501778B (en) | 2021-09-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896384A (en) * | 2005-07-14 | 2007-01-17 | 中船第九设计研究院 | Self-erecting guard wall structure of grid underground wall |
| JP4343080B2 (en) * | 2004-10-12 | 2009-10-14 | 大成建設株式会社 | Continuous underground wall |
| CN205444167U (en) * | 2015-12-24 | 2016-08-10 | 上海远方基础工程有限公司 | Underground continuous wall |
| CN109183848A (en) * | 2018-08-10 | 2019-01-11 | 广东省建工设计院有限公司 | A kind of Tunnel Design and building method |
| CN110700315A (en) * | 2019-10-23 | 2020-01-17 | 中铁东方国际集团有限公司 | Integrated station structure and construction method of middle cover excavation method |
-
2020
- 2020-04-27 CN CN202010345290.9A patent/CN111501778B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4343080B2 (en) * | 2004-10-12 | 2009-10-14 | 大成建設株式会社 | Continuous underground wall |
| CN1896384A (en) * | 2005-07-14 | 2007-01-17 | 中船第九设计研究院 | Self-erecting guard wall structure of grid underground wall |
| CN205444167U (en) * | 2015-12-24 | 2016-08-10 | 上海远方基础工程有限公司 | Underground continuous wall |
| CN109183848A (en) * | 2018-08-10 | 2019-01-11 | 广东省建工设计院有限公司 | A kind of Tunnel Design and building method |
| CN110700315A (en) * | 2019-10-23 | 2020-01-17 | 中铁东方国际集团有限公司 | Integrated station structure and construction method of middle cover excavation method |
Non-Patent Citations (2)
| Title |
|---|
| 地下连续墙结构与逆作法施工;胡精发;《结构工程师》;19921231(第03期);第19-20页、第23-25页 * |
| 深圳河南大厦地下工程逆作法设计;单静;《黄河水利职业技术学院学报》;20010630(第02期);全文 * |
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Address after: 214104 room 301-218, block a, Xidong chuangrong building, No. 78, Danshan Road, anzhen street, Xishan District, Wuxi City, Jiangsu Province Patentee after: Jiangsu CRRC Urban Development Co.,Ltd. Patentee after: CRRC CONSTRUCTION ENGINEERING Co.,Ltd. Address before: 215000 115 Yinsheng Road, Shengpu Town, Suzhou Industrial Park, Jiangsu Province Patentee before: SUZHOU CHINA VEHICLE CONSTRUCTION ENGINEERING Co.,Ltd. Patentee before: CRRC CONSTRUCTION ENGINEERING Co.,Ltd. |
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