CN104532854B - Periphery underground structure makees the construction method of deep foundation ditch of support system - Google Patents
Periphery underground structure makees the construction method of deep foundation ditch of support system Download PDFInfo
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- CN104532854B CN104532854B CN201410844511.1A CN201410844511A CN104532854B CN 104532854 B CN104532854 B CN 104532854B CN 201410844511 A CN201410844511 A CN 201410844511A CN 104532854 B CN104532854 B CN 104532854B
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- basal pit
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- underground structure
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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
Abstract
This application provides the construction method of deep foundation ditch that a kind of periphery underground structure makees support system, supporting construction is used as by the use of the completed structure in neighboring area, basement structure for example using neighboring area is used as supporting construction, when can not use horizontal support in deep basal pit region to be onstructed, from top to bottom successively cut the earth, until bottom, and after bottom completion applies base plate, from bottom to top successively return again and build underground structure, so as to reduce working procedure, accelerate shoveling rhythm, improve speed of being unearthed, reduce the construction intermittent time, and then save the construction period that deep pit digging and underground structure time are built, reduce construction cost, and influence of the reduction to surrounding enviroment.
Description
Technical field
The application is related to building engineering construction field, more particularly to periphery underground structure makees the deep foundation pit construction of support system
Method.
Background technology
With continuing to develop that urban modernization is built, the development ＆ construction requirement of city space is increasingly urgent, all kinds of undergrounds
The construction of engineering is also more and more.Requirement of the underground engineering to deep-foundation pit engineering also more and more higher.Generally, deep basal pit refers to
Cutting depth more than 5 meters (contain 5 meters) or more than three layers of basement (containing three layers), though or depth not less than 5 meters, geological conditions with
Surrounding environment and the especially complex engineering of underground utilities, ultra-deep foundation pit be then depth more than 10 meters, and geological conditions and surrounding
Environment and the increasingly complex engineering of underground utilities.
Base pit engineering mainly includes foundation pit supporting system design and construction and earth excavation, is one and comprehensive very strong is
System engineering.It requires Geotechnical Engineering and Structural Engineering technical staff's close fit.
Wherein, foundation pit supporting system is temporary structure, is generally no longer needed for after the completion of underground engineering construction.It is big at present
The construction method that the construction method of type underground engineering is common is the suitable practice, wherein, it is first by the soil at underground engineering position along the practice
(ground) is all excavated, and from top to bottom cuts the earth, and often digs one layer of soil application work and supports together, its support includes horizontal support, until hole
Bottom application adds base plate, then from bottom to top removes one of Rotating fields of Construction of Supporting one, constructing underground building, then is backfilled.
Although having along the practice, easy construction, difficulty be low, the measured advantage of matter, need to set substantial amounts of for heavy construction
Concrete support system, temporary project is more, big to the dismounting amount of foundation pit supporting system and when being switched as that need to be supported, and significantly increases
Plus the quantity of construction period and temporary project, therefore be that working procedure is various along practice construction subject matter, it is long in time limit；And water
Flat support is only used for the excavation stage, and return needs to remove again when building, costly.
The content of the invention
The purpose of the application is to provide the construction method of deep foundation ditch that a kind of periphery underground structure makees support system, using without branch
Support to reduce working procedure, accelerates shoveling rhythm, improves speed of being unearthed along constructing, and reduces the construction intermittent time, and then save
Deep pit digging and underground structure return the construction period built, and reduce construction cost, and reduce the influence to surrounding enviroment.
With reference to above-mentioned purpose, the application provides the construction method of deep foundation ditch that a kind of periphery underground structure makees support system, its
In, construction method of deep foundation ditch includes：
Underground structure is built in each region in periphery in deep basal pit region to be onstructed；
Using the existing underground structure in neighboring area as support system, under the conditions of without horizontal support structure, to described to be onstructed
Deep basal pit region is from top to bottom successively cut the earth, until deep basal pit bottom；
Base plate is increased to the deep basal pit bottom；
From the deep basal pit bottom, successively return build underground structure from bottom to top.
Further, in described construction method of deep foundation ditch, it is described to deep basal pit region to be onstructed from top to bottom successively
Shoveling process also includes：
The dividing wall between each area's foundation ditch of the deep basal pit to be onstructed and its periphery is successively cut with successively cutting the earth.
Further, in described construction method of deep foundation ditch, completed in each region in periphery in deep basal pit region to be onstructed
The step of supporting construction and to the deep basal pit region to be onstructed from top to bottom successively cut the earth the step of between, also include：
Temporary enclosed measure is taken to the post-cast strip between each region in the periphery.
In summary, the application makees the construction method of deep foundation ditch of support system by providing a kind of periphery underground structure, profit
With the completed structure in neighboring area as supporting construction, for example using the basement structure of neighboring area as supporting construction, then
Deep basal pit region to be onstructed from top to bottom can successively be cut the earth when not using horizontal support, until bottom, and the bottom of at
Portion completes to apply after base plate, then from bottom to top successively returns and build underground structure, to reduce working procedure, accelerates shoveling rhythm, carries
The unearthed speed of height, reduces the construction intermittent time, and then saving deep pit digging and underground structure return the construction period built, and reduction is applied
Work cost, and reduce the influence to surrounding enviroment.
Further, by taking temporary enclosed measure to the post-cast strip between each region in the periphery, further enhance
Periphery has completed the integral rigidity of basement structure to ensure that deep pit monitor is stable.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 shows the process schematic for the construction method of deep foundation ditch that on the one hand the application provides.
Fig. 2 shows the schematic top plan view of Deep foundation Pit excavation in the preferred embodiment of the application one.
Fig. 3 shows the schematic cross-sectional view of Deep foundation Pit excavation in the preferred embodiment of the application one.
Fig. 4 is shown as the process schematic of the construction method of deep foundation ditch of the preferred embodiment of the application one.
Embodiment
The core concept of the application is to make the deep foundation pit construction side of support system by providing a kind of periphery underground structure
Method, by the use of the completed structure in neighboring area as supporting construction, for example, is used as supporting knot using the basement structure of neighboring area
Structure, then deep basal pit region to be onstructed from top to bottom can successively be cut the earth when not using horizontal support, until bottom,
And after completing to apply base plate in bottom, then from bottom to top successively return and build underground structure, to reduce working procedure, accelerate section of cutting the earth
Play, improve speed of being unearthed, reduce the construction intermittent time, and then saving deep pit digging and underground structure return the construction period built,
Construction cost is reduced, and reduces the influence to surrounding enviroment.In addition, the herein described equally applicable deep basal pit of method and ultra-deep base
Cheat operation
Fig. 1 is shown as the process schematic for the construction method of deep foundation ditch that on the one hand the application provides.Fig. 2 shows that the application one is excellent
The schematic top plan view of Deep foundation Pit excavation in the embodiment of choosing.Fig. 3 shows that deep basal pit is applied in the preferred embodiment of the application one
The schematic cross-sectional view of work process.
With reference to above-mentioned core concept and Fig. 1~Fig. 3, this application provides a kind of construction method of deep foundation ditch, the deep basal pit
Construction method includes step S01, step S02, step S03 and step S04.
In step S01, underground structure 202 is built in each region 200 in periphery in deep basal pit region 100 to be onstructed,
In preferred embodiment, the existing underground structure 202 in each region 200 in periphery can as deep basal pit region 100 to be onstructed supporting
System.
In step S02, under the conditions of without horizontal support structure, to the deep basal pit region 100 to be onstructed from top to bottom
Successively cut the earth, until deep basal pit bottom.
In a preferred embodiment, during from top to bottom successively being cut the earth to the deep basal pit region 100 to be onstructed, together
When successively cut with earth excavation to the dividing wall between each region 200 in deep basal pit region 100 and its periphery to be onstructed
400, compared with traditional dividing wall removes technique, the condition of work of Demolition Construction is improved, ventilation, lighting installation has been saved.
Compared to of the prior art along the practice, deep basal pit is being ensured along construction method is made by using unbraced structure
Security on the basis of, saved the materials such as steel, the concrete of Construction of Supporting, and then reduce the construction cost of supporting removal
With reducing the construction cost of foundation ditch；Without waiting for supporting construction to reach that some strength can be excavated next for work progress simultaneously
The layer earthwork, and earth excavation open cut under the conditions of open type, earth excavation rhythm and speed are accelerated, and effectively improve efficiency of construction.
In step S03, base plate is increased to the deep basal pit bottom.
In step S04, from the deep basal pit bottom, successively return build underground structure from bottom to top.Specifically, under
Successively return when building underground structure, without structure can be performed after concrete support to be removed, reduce between substantial amounts of construction upwards
Have a rest the time, saved the construction period of foundation ditch；Successively return from bottom to top simultaneously and build the underground structure stage and can complete the deep basal pit
Connection between each region underground structure in region and periphery, so as to reduce structure construction seam, better assures that structure construction
Quality.
Fig. 4 is shown as the process schematic of the construction method of deep foundation ditch of the preferred embodiment of the application one.The deep basal pit is applied
Work method includes step S01 ', step S02 ', step S03 ', step S04 ' and step S05 '.
The step S05 ' in step S01 ' and step S02 ', including：To the post-cast strip between each region in the periphery
300 take temporary enclosed measure, and it is complete that the temporary enclosed measure of post-cast strip 300 can further strengthen each region 200 in periphery
Into the integral rigidity of underground structure, so that it is guaranteed that deep pit monitor is stable.
Here, step S01 ', step S02 ', step S03 ' and step S04 ' and step S01, step S02, step in Fig. 1
S03 and the corresponding contents of step S04 are identical or essentially identical, for simplicity, are incorporated herein by reference, no longer go to live in the household of one's in-laws on getting married
State.
In summary, by providing a kind of construction method of deep foundation ditch, supporting is used as by the use of the completed structure in neighboring area
Structure, such as using the basement structure of neighboring area as supporting construction, then deep basal pit region to be onstructed can not used
When horizontal support, from top to bottom successively cut the earth, until bottom, and after bottom completion applies base plate, then from bottom to top
Successively return and build underground structure, to reduce working procedure, accelerate shoveling rhythm, improve speed of being unearthed, reduce the construction intermittent time, enter
And the construction period that deep pit digging and underground structure time are built is saved, construction cost is reduced, and reduce the influence to surrounding enviroment.
Further, by taking temporary enclosed measure to the post-cast strip between each region in the periphery, further enhance
Periphery has completed the integral rigidity of underground structure to ensure that deep pit monitor is stable.
It is obvious to a person skilled in the art that the application is not limited to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit herein or essential characteristic, the application can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present application is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the application.Any reference in claim should not be considered as to the claim involved by limitation.This
Outside, it is clear that the word of " comprising " one is not excluded for other units or step, and odd number is not excluded for plural number.That is stated in device claim is multiple
Unit or device can also be realized by a unit or device by software or hardware.The first, the second grade word is used for table
Show title, and be not offered as any specific order.
Claims (2)
1. a kind of periphery underground structure makees the construction method of deep foundation ditch of support system, wherein, including：
Underground structure is built in each region in periphery in deep basal pit region to be onstructed；
Using the existing dividing wall between underground structure and each area's foundation ditch of deep basal pit to be onstructed and periphery in neighboring area as support system,
Under the conditions of without horizontal support structure, the deep basal pit region to be onstructed is from top to bottom successively cut the earth, until deep basal pit bottom；
Base plate is increased to the deep basal pit bottom；
From the deep basal pit bottom, successively return build underground structure from bottom to top, complete the deep basal pit region and periphery to be onstructed
Connection between each region underground structure,
It is wherein, described that to deep basal pit region to be onstructed, from top to bottom successively shoveling process also includes：
The dividing wall between each area's foundation ditch of the deep basal pit to be onstructed and its periphery is successively cut with successively cutting the earth.
2. construction method of deep foundation ditch as claimed in claim 1, wherein, completed in each region in periphery in deep basal pit region to be onstructed
The step of supporting construction and to the deep basal pit region to be onstructed from top to bottom successively cut the earth the step of between, also include：
Temporary enclosed measure is taken to the post-cast strip between each region in the periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410844511.1A CN104532854B (en) | 2014-12-26 | 2014-12-26 | Periphery underground structure makees the construction method of deep foundation ditch of support system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410844511.1A CN104532854B (en) | 2014-12-26 | 2014-12-26 | Periphery underground structure makees the construction method of deep foundation ditch of support system |
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| Publication Number | Publication Date |
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| CN104532854A CN104532854A (en) | 2015-04-22 |
| CN104532854B true CN104532854B (en) | 2017-07-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105908748B (en) * | 2016-05-31 | 2019-01-22 | 中国建筑第八工程局有限公司 | To the Brace in Deep Footing Groove method for being used to control foundation pit deformation under supporting system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425173A (en) * | 2011-12-07 | 2012-04-25 | 中冶天工集团有限公司 | Deep foundation pit earthwork digging method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408025B (en) * | 2008-11-11 | 2011-06-01 | 广州市设计院 | Pit construction method by using major structure as bearing point |
| CN101748758B (en) * | 2008-12-04 | 2012-03-21 | 中国二十冶集团有限公司 | Timbering method of foundation ditches for reforming on-line equipment foundations in factory buildings |
| CN102425171A (en) * | 2011-09-25 | 2012-04-25 | 湖南省勘测设计院 | Forward-backward constructing method for central island of deep and large foundation pit |
| CN103114592B (en) * | 2011-11-16 | 2014-11-19 | 龙信建设集团有限公司 | Method for deep excavation pit combination support construction close to subway station |
| CN102966108B (en) * | 2012-11-23 | 2014-10-08 | 中铁四局集团建筑工程有限公司 | Construction method of deep foundation pit close to building and adopting underground structure as internal support |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425173A (en) * | 2011-12-07 | 2012-04-25 | 中冶天工集团有限公司 | Deep foundation pit earthwork digging method |
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