CN101736756B - Method for constructing soft soil foundation reverse interlayer - Google Patents
Method for constructing soft soil foundation reverse interlayer Download PDFInfo
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- CN101736756B CN101736756B CN2009101999750A CN200910199975A CN101736756B CN 101736756 B CN101736756 B CN 101736756B CN 2009101999750 A CN2009101999750 A CN 2009101999750A CN 200910199975 A CN200910199975 A CN 200910199975A CN 101736756 B CN101736756 B CN 101736756B
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Abstract
The invention discloses a method for constructing a soft soil foundation reverse interlayer, which comprises the following steps of: 1. setting an underground enclosing structure in a field to be constructed; 2. carrying out soil excavation, excavating soil to the bottom of a first-floor plate and carrying out the construction of a top-floor structure plate of an underground first floor; 3. carrying out soil excavation, excavating soil to an underground second floor base plate and carrying out the construction of a top-floor structure plate of an underground third floor; 4. by utilizing the maintenance period of the top-floor structure plate of the underground third floor, constructing the top-floor structure plate of the underground second floor; and 5. after the top-floor structure plate of the underground third floor reaches the design strength, sequentially carrying out the construction of other underground lower floor structures according to the steps 3 and 4. By construction through the constructing method, the construction period and can be effectively shortened, the cost is saved, and the economic benefits and the social competitive force of enterprises are improved.
Description
Technical field
The present invention relates to technical field of building construction, and be particularly related to a kind of method for constructing soft soil foundation reverse interlayer.
Background technology
The contrary sequence method that risen the eighties in 20th century is meant basement structure job practices from top to bottom, this job practices generally is used for basement structure construction more, when constructing, the basement roof of at first constructing, excavation and construction basement structure from top to bottom successively successively again.In the common engineering, will pass through artificial consolidation process at soft foundation, the method for its processing has mechanical ramming, cushion, piling etc.According to this conventional process, not only construction costs is too high, takies long in time limitly, and hidden danger of quality is difficult to eradicate, and for the complexity soft foundation, what have can't construct.And shoveling efficient was low when this conventional method was constructed, and limited by the basement floor height, and it is slow to be unearthed, and when shallow-layer was constructed, space enclosing structure failed to give full play to its shallow-layer rigidity, caused the basement structure construction duration longer, easily caused distortion to strengthen.
Summary of the invention
The present invention is intended to solve in the prior art, in prior art, because of the influence of soft foundation causes traditional top-down construction method shoveling efficient low, takies long in time limitly, and construction quality such as can't guarantee at technical problem.
In view of this, the invention provides a kind of method for constructing soft soil foundation reverse interlayer, may further comprise the steps:
Step 1: the underground structure space enclosing structure is set in required construction plant;
Step 2: carry out soil excavation, cut the earth at the bottom of first floor plate, build B1 top level structure board concrete then, and on described B1 top level structure plate face, reserve the shoveling hole;
Step 3: reserve the position at shoveling hole on the B1 top level structure plate face according to design, carry out a cubic metre of earth tunneling, cut the earth, build F3/B3 top level structure board concrete then to underground two layers of base plate;
Step 4: utilize F3/B3 top level structure plate curing time, the underground two layers of top level structure plate of constructing;
Step 5: after treating that F3/B3 top level structure plate reaches design strength,, carry out underground other substructure constructions successively according to step 3,4.
Utilize method for constructing soft soil foundation reverse interlayer provided by the invention can reach following beneficial effect:
1) made full use of multi-storey basement space enclosing structure shallow-layer rigidity, after the construction of first floor plate was finished, directly the following laminate at interval of the excavation construction first floor can be constructed on soft foundation.
2) utilize interlayer (following two layers) concrete structure between curing time, carry out the construction of upper strata (following one deck) structure, effectively shortened total time of construction, and guaranteed construction quality.
Description of drawings
Figure 1 shows that the flow chart of the method for constructing soft soil foundation reverse interlayer that one embodiment of the invention provides;
The situation schematic diagram that the method for constructing soft soil foundation reverse interlayer that Fig. 2 A to Fig. 2 F is depicted as one embodiment of the invention to be provided is constructed.
The specific embodiment
For technical characterictic of the present invention is become apparent, below in conjunction with accompanying drawing, provide specific embodiment, the present invention will be further described.
See also Fig. 1, it is depicted as the flow chart of the method for constructing soft soil foundation reverse interlayer that one embodiment of the invention provides.
This job practices may further comprise the steps:
Step S110: the underground structure space enclosing structure is set in required construction plant;
Step S120: carry out soil excavation, cut the earth at the bottom of first floor plate, build B1 top level structure board concrete then, and on described B1 top level structure plate face, reserve the shoveling hole;
Step S130: reserve the position at shoveling hole on the B1 top level structure plate face according to design, carry out a cubic metre of earth tunneling, cut the earth, build F3/B3 top level structure board concrete then to underground two layers of base plate;
Step S140: utilize F3/B3 top level structure plate curing time, the underground two layers of top level structure plate of constructing;
Step S150: after treating that F3/B3 top level structure plate reaches design strength,, carry out underground other substructure constructions successively according to step 3,4.
Below in conjunction with a specific embodiment of the present invention being described with reference to figure 2A to Fig. 2 F.
Underground 5 layers of certain project, 23 layers on the ground, 80 meters of building general heights dig dark 19.2 meters, about 4200 square metres of this engineering foundation ditch gross area, 310 meters of Zhou Changyue, shape is the L shaped of rule comparatively.48000 square metres of building areas.Surrounding environment complicated condition, ground are soft foundation, and this project periphery has 7 historical protective buildings things altogether, and construction period is tight, under safe and reliable prerequisite, adopt the soft soil foundation reverse interlayer construction technology.The concrete construction sequence of this method is as follows:
1, underground structure space enclosing structure 200 is set in required construction plant.
2, utilize the supporting role of space enclosing structure 200, construct in soft foundation, cut the earth at the bottom of first floor plate for the first time, construction basement structure top board 210 sees also Fig. 2 A.
3, soil excavation is for the second time directly cut the earth to the subcellar base plate, and three layers of top board structure 230 of construction basement see also Fig. 2 B.
4, utilize 230 curing times of three layers of top board structure of basement, carry out the construction of subcellar top board structure 220, see also Fig. 2 C.
5, treat that three layers of top board structure 230 plate of basement reach design strength after, earth excavation carries out the construction of five layers of top board structure 250 of basement to four layers of base plate of basement, sees also Fig. 2 D.
6, utilize 250 curing times of five layers of top board structure of basement, carry out the construction of four layers of top board structure 240 of basement, see also Fig. 2 E.
7, treat that five layers of top board structure 250 plate of basement reach design strength after, earth excavation carries out the construction of five layers of base arrangement 260 of basement to basement bottom board, sees also Fig. 2 F.
The method for constructing soft soil foundation reverse interlayer that utilizes the embodiment of the invention to provide can reach following beneficial effect:
1) made full use of multi-storey basement space enclosing structure shallow-layer rigidity, after the construction of first floor plate was finished, directly the following laminate at interval of the excavation construction first floor can be constructed on soft foundation.
2) utilize interlayer (following two layers) concrete structure between curing time, carry out the construction of upper strata (following one deck) structure, effectively shortened total time of construction, and guaranteed construction quality.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (1)
1. a method for constructing soft soil foundation reverse interlayer is characterized in that, may further comprise the steps:
Step 1: the underground structure space enclosing structure is set in required construction plant;
Step 2: carry out soil excavation, cut the earth at the bottom of first floor plate, build B1 top level structure board concrete then, and on described B1 top level structure plate face, reserve the shoveling hole;
Step 3: reserve the position at shoveling hole on the B1 top level structure plate face according to design, carry out a cubic metre of earth tunneling, cut the earth, build F3/B3 top level structure board concrete then to underground two layers of base plate;
Step 4: utilize F3/B3 top level structure plate curing time, the underground two layers of top level structure plate of constructing;
Step 5: after treating that F3/B3 top level structure plate reaches design strength,, carry out underground other substructure constructions successively according to step 3,4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101999750A CN101736756B (en) | 2009-12-04 | 2009-12-04 | Method for constructing soft soil foundation reverse interlayer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101999750A CN101736756B (en) | 2009-12-04 | 2009-12-04 | Method for constructing soft soil foundation reverse interlayer |
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| CN101736756A CN101736756A (en) | 2010-06-16 |
| CN101736756B true CN101736756B (en) | 2011-06-22 |
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| CN2009101999750A Active CN101736756B (en) | 2009-12-04 | 2009-12-04 | Method for constructing soft soil foundation reverse interlayer |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900099A (en) * | 2011-07-26 | 2013-01-30 | 上海市第二建筑有限公司 | Drop-slab construction process for underground concrete structures |
| CN103174160A (en) * | 2011-12-23 | 2013-06-26 | 上海艾能电力工程有限公司 | Soft soil area small machine set thermal power plant power distribution room underground facility foundation construction process |
| CN104131565B (en) * | 2014-06-18 | 2016-06-22 | 中国建筑第四工程局有限公司 | A kind of against making the construction method that the earthwork is just made to excavate |
| CN104762992B (en) * | 2015-03-20 | 2016-08-17 | 中国建筑土木建设有限公司 | Full-reverse construction method for super high-rise barrel building |
| CN108060683B (en) * | 2017-12-18 | 2019-09-03 | 烟建集团有限公司 | A kind of middle weathering geology top-down construction method |
| CN108149922B (en) * | 2017-12-29 | 2023-06-16 | 上海市机械施工集团有限公司 | Non-row formwork construction method suitable for top plate of reverse construction method construction structure |
| KR20220024070A (en) * | 2019-06-27 | 2022-03-03 | 양경옥 | The underground vertical member construction method of the reverse perforation method, which is constructed alternately every other time |
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