CN111321762A - Accurate basement building method - Google Patents
Accurate basement building method Download PDFInfo
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- CN111321762A CN111321762A CN202010136663.1A CN202010136663A CN111321762A CN 111321762 A CN111321762 A CN 111321762A CN 202010136663 A CN202010136663 A CN 202010136663A CN 111321762 A CN111321762 A CN 111321762A
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- Prior art keywords
- split
- basement
- side wall
- side walls
- ground
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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
- E02D29/05—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 at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
- E02D29/055—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 at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench further excavation of the cross-section proceeding underneath an already installed part of the structure, e.g. the roof of a tunnel
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0007—Base structures; Cellars
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
A method for accurately building a basement. The basement is located right below the building, and S1, a support pile for supporting the building is driven downwards from the ground of the building; s2, defining the horizontal plane position of the side wall of the basement at the periphery of the building, and presetting the split female side wall of the basement at the horizontal plane position; s3, driving the side walls of the split nuts into the ground respectively; s4, excavating from the ground to the underground at the inner periphery of the area defined by the side walls of the split female, wherein the excavating depth is smaller than the embedding depth of the side walls of the split female, so that a lower supporting soil layer is reserved below the side of the split female, and the lower supporting soil layer is used for supporting the lower part of the side walls of the split female in the horizontal direction; s5, arranging a supporting structure to support the upper part of the side wall of the split female, and hollowing out other soil layers except the lower soil protection layer in the area defined by the side wall of the split female; s6, connecting the split female side walls into a whole to form the side walls of the basement; and S7, pouring the top wall and the bottom wall of the basement and respectively connecting the top wall and the bottom wall of the basement with the split female side walls to form the basement.
Description
Technical Field
The invention relates to a method for building basements for existing buildings, in particular to a precise method for building basements.
Background
At present, in the prior art, a method for building a basement in an existing building is described in the background of chinese patent CN 201310040277: the basement building envelope and the waterproof curtain are built firstly, then the brick wall is built on the outer side of the basement building envelope, concrete is filled between the building envelope and the brick wall, the waterproof layer and the waterproof protective layer are made after cement mortar is cut outside the brick wall, the reinforcing steel bar is bound to the inner wall template after the waterproof protective layer is made, and concrete is poured to form the basement wall. The method comprises the following steps: (1) digging a foundation pit, and erecting a supporting structure on the inner side wall of the foundation pit, wherein one end of the supporting structure is connected with the inner side wall of the foundation pit, and the other end of the supporting structure is connected with the bottom wall of the foundation pit; (2) and pouring to form the wall of the basement.
The defects of the prior art are as follows: in the prior art, only the bottom of a basement is provided with a supporting structure, but the upper part of the basement is not provided with the supporting structure, so that the wall of the side wall of the basement is deviated during construction, and the supporting is not stable enough.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an accurate method for additionally building the basement, which can stably support and build the basement.
The method for accurately building the basement, wherein the basement is positioned right below a building, comprises the following steps: s1, driving a support pile downwards from the ground of the building for supporting the building; s2, defining the horizontal plane position of the side wall of the basement at the periphery of the building, and presetting the split female side wall of the basement at the horizontal plane position; s3, driving the side walls of the split nuts into the ground respectively; s4, excavating from the ground to the underground at the inner periphery of the area defined by the side walls of the split female, wherein the excavating depth is smaller than the embedding depth of the side walls of the split female, so that a lower supporting soil layer is reserved below the side of the split female, and the lower supporting soil layer is used for supporting the lower part of the side walls of the split female in the horizontal direction; s5, arranging a supporting structure to support the upper part of the side wall of the split female, and hollowing out other soil layers except the lower soil protection layer in the area defined by the side wall of the split female; s6, connecting the split female side walls into a whole to form the side walls of the basement; and S7, pouring the top wall and the bottom wall of the basement and respectively connecting the top wall and the bottom wall of the basement with the split female side walls to form the basement.
Further, the "pouring of the basement bottom wall" refers to pouring of the top wall and the bottom wall of the basement on the surface of the lower supporting soil layer.
Furthermore, the split main side wall is divided into a plurality of segments of split sub side walls in the height direction, and the lowermost segment is a basic segment of split sub side walls; further comprising the steps of: S3-A, placing the side walls of the split sub-bodies of the basic section on the ground; S3-B, driving the side wall of the split sub of the foundation section on the ground into the ground; S3-C, welding and lengthening the steel bars on the side wall of the split sub of the foundation section driven into the ground in the S3-B upwards, and pouring the side wall of the split sub of the next section on the ground; and S3-D, driving the side wall of the next section of the split sub into the ground.
Furthermore, when a section of the split sub-side wall is driven in, the inner periphery of the area defined by the split main-side wall is excavated from top to bottom, and the excavating depth is equal to the height of the split sub-side wall, so that a new lower supporting soil layer is formed at the lower part of the base section split sub-side wall.
Has the advantages that: the lower supporting soil layer does not need to be specially built, the lower supporting soil layer has the same effect as a supporting structure, the lower supporting soil layer is used for supporting the lower portion of the split female side wall, only one supporting structure is needed to be arranged for supporting the upper portion of the split female side wall, the upper portion and the lower portion of the split female side wall are supported, and the supporting structure is stable.
Drawings
FIG. 1 is a schematic view of the position relationship of a basement according to the present invention;
fig. 2 is a schematic view of the basement after the building is completed.
Wherein: 1. a building; 2. supporting piles; 3. a basement; 4. a ground surface; 5. a split female sidewall; 6. a lower supporting soil layer; 7. basement bottom wall.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in fig. 1, the present invention provides a precise method for building a basement, which includes:
s1, the constructor drives the supporting pile 2 which can support the building 1 into the ground;
s2, the constructor defines the horizontal position of the basement wall (the basement is located right below the building) at the periphery of the building according to the design position of the basement 3 (the basement is located right below the building), and then presets the split female side wall 5 of the basement at the projection of the split female side wall 5 relative to the ground 4 (i.e. on the ground); s3, driving the side walls of the split nuts into the ground respectively; s4, excavating from the ground to the underground at the inner periphery of the area defined by the side walls of the split female, wherein the excavating depth is smaller than the embedding depth of the side walls of the split female, so that a lower supporting soil layer 6 is reserved below the side of the split female, and the lower supporting soil layer is used for supporting the lower part of the side walls of the split female in the horizontal direction; s5, arranging a supporting structure (for example, a cross bar, wherein two ends of the cross bar are respectively connected with the upper parts of two split female side walls facing each other) to support the upper parts of the split female side walls, and hollowing out other soil layers in the area enclosed by the split female side walls except for the lower soil protection layer; s6, connecting the split female side walls into a whole to form the side walls of the basement; and S7, pouring the top wall and the bottom wall of the basement and respectively connecting the top wall and the bottom wall of the basement with the split female side walls to form the basement. The constructor pours the top wall and the bottom wall 7 of the basement to be connected with the split female side wall 3 to form the basement, and then can detach the supporting pile.
In fact, the bottom wall of the basement is cast directly on the surface of the underlying supporting soil, as shown in fig. 2, which has the advantage of not requiring additional installation and removal of the supporting structure.
In addition, the split mother side wall is divided into a plurality of segments of split subsidiary side walls in the height direction, and the lowest segment is the basic segment split subsidiary side wall; s3 further includes the steps of: S3-A, placing the side walls of the split sub-bodies of the basic section on the ground; S3-B, driving the side wall of the split sub of the foundation section on the ground into the ground; S3-C, welding and lengthening the steel bars on the side wall of the split sub of the foundation section driven into the ground in the S3-B upwards, and pouring the side wall of the split sub of the next section on the ground; and S3-D, driving the side wall of the next section of the split sub into the ground. When a section of the split sub-side wall is driven in, the inner periphery of the area defined by the split main side wall is excavated from top to bottom, the excavated depth is equal to the height of the split sub-side wall, so that a new lower soil protection layer is formed at the lower part of the split sub-side wall of the basic section, namely, the side wall of the split sub-side of the basic section is gradually driven to the target depth, and is driven to a certain depth and then is excavated once, and finally the split sub-side wall and the lower soil protection layer of the basic section sink to the target depth.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (4)
1. The method for accurately building the basement is characterized by comprising the following steps of:
s1, driving a support pile downwards from the ground of the building for supporting the building;
s2, defining the horizontal plane position of the side wall of the basement at the periphery of the building, and presetting the split female side wall of the basement at the horizontal plane position;
s3, driving the side walls of the split nuts into the ground respectively;
s4, excavating from the ground to the underground at the inner periphery of the area defined by the side walls of the split female, wherein the excavating depth is smaller than the embedding depth of the side walls of the split female, so that a lower supporting soil layer is reserved below the side of the split female, and the lower supporting soil layer is used for supporting the lower part of the side walls of the split female in the horizontal direction;
s5, arranging a supporting structure to support the upper part of the side wall of the split female, and hollowing out other soil layers except the lower soil protection layer in the area defined by the side wall of the split female;
s6, connecting the split female side walls into a whole to form the side walls of the basement;
and S7, pouring the top wall and the bottom wall of the basement and respectively connecting the top wall and the bottom wall of the basement with the split female side walls to form the basement.
2. The accurate basement building method of claim 1, wherein: the "placement of the basement bottom wall" in S6 means that the top wall and the bottom wall of the basement are placed on the surface of the lower supporting soil layer.
3. The method of adding basement to an existing building as recited in claim 1, wherein: the split main side wall is divided into a plurality of segments of split sub side walls in the height direction, and the lowest segment is the basic segment split sub side wall; s3 further includes the steps of:
S3-A, placing the side walls of the split sub-bodies of the basic section on the ground;
S3-B, driving the side wall of the split sub of the foundation section on the ground into the ground;
S3-C, welding and lengthening the steel bars on the side wall of the split sub of the foundation section driven into the ground in the S3-B upwards, and pouring the side wall of the split sub of the next section on the ground;
and S3-D, driving the side wall of the next section of the split sub into the ground.
4. A method of adding a basement to an existing building as claimed in claim 3, wherein: when a section of the split sub side wall is driven in, the inner periphery of the area enclosed by the split main side wall is excavated from top to bottom, and the excavating depth is equal to the height of the split sub side wall, so that a new lower supporting soil layer is formed at the lower part of the base section split sub side wall.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136663.1A CN111321762A (en) | 2020-03-02 | 2020-03-02 | Accurate basement building method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010136663.1A CN111321762A (en) | 2020-03-02 | 2020-03-02 | Accurate basement building method |
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| CN111321762A true CN111321762A (en) | 2020-06-23 |
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| CN202010136663.1A Pending CN111321762A (en) | 2020-03-02 | 2020-03-02 | Accurate basement building method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2668525B1 (en) * | 1990-10-30 | 1993-01-15 | Harnois Georges | PROCESS FOR THE PRODUCTION IN THE BASEMENT OF AN ADDITIONAL PREMISES. |
| CN102071813A (en) * | 2010-11-18 | 2011-05-25 | 杭州岩土工程有限公司 | Method for constructing underground garage under old building |
| CN102561391A (en) * | 2010-12-16 | 2012-07-11 | 株式会社高丽工程及咨询 | Construction method of cellar for building completed |
| CN107905257A (en) * | 2017-11-24 | 2018-04-13 | 上海市机械施工集团有限公司 | A kind of construction method of city integrated piping lane |
| CN110616739A (en) * | 2019-09-12 | 2019-12-27 | 上海建工集团股份有限公司 | Vertical construction method for underground space of existing building |
-
2020
- 2020-03-02 CN CN202010136663.1A patent/CN111321762A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2668525B1 (en) * | 1990-10-30 | 1993-01-15 | Harnois Georges | PROCESS FOR THE PRODUCTION IN THE BASEMENT OF AN ADDITIONAL PREMISES. |
| CN102071813A (en) * | 2010-11-18 | 2011-05-25 | 杭州岩土工程有限公司 | Method for constructing underground garage under old building |
| CN102561391A (en) * | 2010-12-16 | 2012-07-11 | 株式会社高丽工程及咨询 | Construction method of cellar for building completed |
| CN107905257A (en) * | 2017-11-24 | 2018-04-13 | 上海市机械施工集团有限公司 | A kind of construction method of city integrated piping lane |
| CN110616739A (en) * | 2019-09-12 | 2019-12-27 | 上海建工集团股份有限公司 | Vertical construction method for underground space of existing building |
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Application publication date: 20200623 |