CN102071692A - Construction method for performing bottom plate support replacement on foundation pit by using annular plate - Google Patents
Construction method for performing bottom plate support replacement on foundation pit by using annular plate Download PDFInfo
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- CN102071692A CN102071692A CN2010105709143A CN201010570914A CN102071692A CN 102071692 A CN102071692 A CN 102071692A CN 2010105709143 A CN2010105709143 A CN 2010105709143A CN 201010570914 A CN201010570914 A CN 201010570914A CN 102071692 A CN102071692 A CN 102071692A
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- support
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- base plate
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Abstract
The invention relates to a construction method for performing bottom plate support replacement on a foundation pit by using an annular plate. The construction method comprises the following steps of: 1, constructing an enclosing structure and a support and excavating earth to the bottom surface of the foundation pit; 2, performing construction to pour concrete of the annular plate and a ring beam and basic joints of a central area steel structure; 3, when the concrete strength of the annular plate and the ring beam meet the requirement, detaching the support above the bottom plate; and 4, performing construction to pour the bottom plate of the central area and install a main body steel structure. By the method, a stable stressed structure formed by the annular plate and the annular beam is used for changing support of the bottom plate; and the bottom plate support can be changed when the bottom plates in the central area are not finished, so that the construction period of the central area is separated from the support change period of the bottom plates and the construction efficiency is improved.
Description
Technical field
The present invention relates to a kind of job practices that adopts ring flat-plate to carry out the base plate support replacement, be particularly useful for the job practices that center main body steel work base section is embedded in the base plate support replacement in the base plate.
Background technology
Conventional base plate support replacement method be base plate all build finish after, the coagulation of removing the base plate top again supports, its prerequisite is that the concrete of base plate must all have been constructed, whole base plate forms integral body.For conventional engineering, this method is given no cause for much criticism, but some engineering, its agent structure are steel work, and mainly concentrate on the central area, the base section of steel work bury underground with base plate within, before the base plate construction, must earlier the base section construction of steel work be finished, like this, before supporting removal, must finish the lifting of steel work base section, base plate construction two procedures, construction period extends greatly.If the lifting duration of steel work base section can be peeled off out from the construction period of base plate support replacement, the speed of construction can be accelerated greatly.
Summary of the invention
The present invention will solve in pre-buried section lifting of the steel work of base plate central area to take in a large number under the situation of support replacement duration, make the hoisting cycle of pre-buried section of steel work from the construction period of base plate support replacement, peel off out, improve speed of application, and a kind of job practices that adopts ring flat-plate to carry out the base plate of foundation pit support replacement is provided.
For solving technical problem of the present invention, the technical scheme that is adopted is as follows:
A kind of job practices that adopts ring flat-plate to carry out the base plate of foundation pit support replacement, its step is as follows:
1. construct space enclosing structure, support, and cut the earth to the foundation ditch bottom surface;
2. the base section of ring flat-plate, ring beam concrete and central area steel work is poured into a mould in construction;
3. after the concrete strength of ring flat-plate and ring beam reaches requirement, remove the support of base plate top;
4. construction is poured into a mould the base plate of central area and the main body steel work is installed.
The invention has the beneficial effects as follows: the present invention utilizes ring flat-plate and the formed stable force structure of ring beam to carry out the support replacement of base plate, still imperfect tense can carry out the support replacement of base plate at the central area base plate, make the construction period of central area peel off out the cycle, thereby improve efficiency of construction from the support replacement of base plate.
Description of drawings
Fig. 1 is the structural representation after the present invention constructs;
Fig. 2 to Fig. 5 is a job practices process schematic diagram of the present invention.
The specific embodiment
Below in conjunction with specific embodiment, further set forth embodiments of the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, the present invention adopts ring flat-plate to carry out the job practices of base plate of foundation pit support replacement, utilize the formed stable force structure of ring flat-plate and ring beam to carry out the support replacement of base plate, still imperfect tense can carry out the support replacement of base plate at the central area base plate, make the construction period of central area peel off out the cycle, thereby improve efficiency of construction from the support replacement of base plate.
To shown in Figure 5, the present invention adopts ring flat-plate to carry out the job practices of base plate of foundation pit support replacement as Fig. 2, and key step is as follows:
1) space enclosing structure 2, support 1 and excavation and construction cut the earth 3 to foundation ditch bottom surface (Fig. 2).
2) base section 6 (Fig. 3) of construction ring flat-plate 4, ring beam 5 and central area steel work.
3) after the concrete strength of ring flat-plate and ring beam reaches requirement, remove the support 1 (Fig. 4) of base plate top.
4) base plate 7 and the main body steel work 8 (Fig. 5) of construction central area.
Claims (1)
1. job practices that adopts ring flat-plate to carry out the base plate of foundation pit support replacement, it is characterized in that: concrete steps are:
1) construct space enclosing structure (2), support (1), and cut the earth (3) is to the foundation ditch bottom surface;
2) base section (6) of construction cast ring flat-plate (4), ring beam (5) concrete and central area steel work;
3) after the concrete strength of ring flat-plate (4) and ring beam (5) reaches requirement, remove the support (1) of base plate top;
4) base plate (7) of construction cast central area and installation main body steel work (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105709143A CN102071692A (en) | 2010-12-02 | 2010-12-02 | Construction method for performing bottom plate support replacement on foundation pit by using annular plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105709143A CN102071692A (en) | 2010-12-02 | 2010-12-02 | Construction method for performing bottom plate support replacement on foundation pit by using annular plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102071692A true CN102071692A (en) | 2011-05-25 |
Family
ID=44030432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105709143A Pending CN102071692A (en) | 2010-12-02 | 2010-12-02 | Construction method for performing bottom plate support replacement on foundation pit by using annular plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102071692A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015432A (en) * | 2012-12-07 | 2013-04-03 | 天津住宅集团建设工程总承包有限公司 | Construction method for changing steel pipe supports of ramp foundation pit |
| CN103243722A (en) * | 2012-02-13 | 2013-08-14 | 郑鸿彰 | Construction method of novel inner support of foundation trench |
| CN109505298A (en) * | 2015-10-26 | 2019-03-22 | 张继红 | A kind of self-balancing foundation pit enclosure method |
-
2010
- 2010-12-02 CN CN2010105709143A patent/CN102071692A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 《地下空间与工程学报》 20091231 翁其平 上海世博演艺中心基坑工程设计与实践 第05卷, 2 * |
| 《建筑施工》 20090625 张铭 上海世博会演艺中心工程施工技术 第31卷, 第06期 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243722A (en) * | 2012-02-13 | 2013-08-14 | 郑鸿彰 | Construction method of novel inner support of foundation trench |
| CN103243722B (en) * | 2012-02-13 | 2015-10-28 | 郑鸿彰 | The construction method of novel inner support of foundation trench |
| CN103015432A (en) * | 2012-12-07 | 2013-04-03 | 天津住宅集团建设工程总承包有限公司 | Construction method for changing steel pipe supports of ramp foundation pit |
| CN109505298A (en) * | 2015-10-26 | 2019-03-22 | 张继红 | A kind of self-balancing foundation pit enclosure method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110525 |