CN106836241A - A kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure - Google Patents
A kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure Download PDFInfo
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- CN106836241A CN106836241A CN201710203650.XA CN201710203650A CN106836241A CN 106836241 A CN106836241 A CN 106836241A CN 201710203650 A CN201710203650 A CN 201710203650A CN 106836241 A CN106836241 A CN 106836241A
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- construction
- horizontal support
- support
- foundation pit
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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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure, it is characterised in that comprise the following steps：Step one：Earth excavation, construction cap, horizontal support and waist rail；Step 2：Reserved wall reinforcing bar while construction level is supported；Step 3：Construction sole plate, force transferring structure and waterproof layer and protective layer；Step 4：Maintenance construction sole plate；Step 5：Then construct base exterior wall and foundation level structure, while sequence construction superstructure；Step 6：Remove horizontal support.Beneficial effects of the present invention are that horizontal support is removed into operation, foundation structure and load transfering strip maintenance operation, and non-key operation is changed into from critical process, save 15 days durations；Save the expense and duration that interim conversion bearing diagonal is set；Foundation construction is safer.
Description
Technical field
The present invention relates to the realm of building construction, and in particular to a kind of support replacement construction work of pattern foundation pit supporting structure horizontal support structure
Method.
Background technology
Typically under Soft Soil, foundation structure of the buried depth more than 3 meters is constructed, and its excavation of foundation pit is required to take branch
The deep foundation of shield measure, particularly buried depth more than 5 meters, its pattern foundation pit supporting structure will set horizontal support.Horizontal support is generally reinforcing bar
Concrete structure and steel construction, but support more with reinforced concrete structure.Here it is supported on just for reinforced concrete structure
Problem in practice of construction proposes innovative approach or thinking.
The horizontal support of general pattern foundation pit supporting structure needs the foundation level structure setting that staggers, and its particular location is needed according to calculating
To determine, horizontal support may be provided above or below foundation level structure.Particularly when horizontal support is arranged on base water
During the lower section of flat structure, although meet the safety requirements of pattern foundation pit supporting structure, but have impact on the foundation level above horizontal support
The construction of structure.Must first remove horizontal support, the foundation level structure above ability construction level support；And pattern foundation pit supporting structure
Safety requirements is the level that can not remove the foundation level structure construction time, and otherwise foundation ditch can cave in.
Common solution is：First construction level supports following horizontal structure and wall segment, and in horizontal support
Interim conversion bearing diagonal (generally bracing members), and the water below horizontal support are set on following horizontal structure and wall segment
Flat structure and wall segment and force transferring structure is set between supporting construction elevationally outward (typically fills plain concrete, intensity is not low
In C25；Other also useful supporting constructions).Maintenance level supports following horizontal structure and wall segment, and power transmission knot
Structure, after reaching the strength condition for removing horizontal support, can remove horizontal support.Then construction level support above base water
Flat structure, and foundation level structure and force transferring structure between supporting construction elevationally outward, and conserve oblique to interim conversion is removed
After the strength condition of support, interim conversion bearing diagonal can be removed.It has the disadvantage：1st, tedious process；2nd, it is long in time limit, whole operations
All it is critical process, takes the main duration；3rd, costly, support replacement measure input is more；4th, management difficulty is big, and CCP is more；5、
Big to workman's technical operation difficulty, technical requirements are high；The present invention substitutes the support replacement of upright project structure using horizontal support structure
Construction, realizes the purpose of the construction foundation level structure under conditions of horizontal support is not removed.
The content of the invention
Regarding to the issue above, the purpose of the present invention is the support replacement construction work for disclosing a kind of pattern foundation pit supporting structure horizontal support structure
Method, realizes the purpose of the construction foundation level structure under conditions of horizontal support is not removed.
The technical scheme that the present invention is provided is a kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure, and its feature exists
In comprising the following steps：
Step one：Earth excavation, construction cap, horizontal support and waist rail；
Step 2：Reserved wall reinforcing bar while construction level is supported；
Step 3：Construction sole plate, force transferring structure and waterproof layer and protective layer；
Step 4：Maintenance construction sole plate；
Step 5：Then construct base exterior wall and foundation level structure, while sequence construction superstructure；
Step 6：Remove horizontal support.
Further, the concrete strength and seepage-resistant grade of the horizontal support are consistent with base exterior wall.
Further, expanded rubber sealing rod is set at the base exterior wall and the construction joint of horizontal support.
Further, horizontal shore is not less than and structure outer concrete grade through the part concrete label of permanent structure exterior wall；
Twice 20*30 water-swellable sealing adhesive tape is used at construction joint, dual water-proofing treatment is carried out；Permanent structure exterior wall reinforcing bar shifts to an earlier date
Reserved in horizontal support；Metope on the outside of the permanent structure after removing horizontal support is blocked with waterproof mortar；Finally do permanent
The inside and outside waterproof of structure external wall.
The advantage of the invention is that：
1st, the purpose of the construction foundation level structure under conditions of horizontal support is not removed is realized；
2nd, horizontal support is removed into operation, foundation structure and load transfering strip maintenance operation, non-key work is changed into from critical process
Sequence, saves 15 days durations；
3rd, the expense and duration that interim conversion bearing diagonal is set are saved；
4th, foundation construction is safer；
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of old support replacement method.
Fig. 2 is the schematic diagram of support replacement method of the present invention.
Wherein：1st, cap；2nd, water-stop curtain；3rd, waist rail；4th, wall reinforcing bar is reserved；5th, horizontal support；6th, supporting construction；7th, base
Plinth horizontal structure；8th, force transferring structure；9th, base exterior wall；10th, sole plate.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
Embodiment one：
Old support replacement method
Step one：Supporting construction 6, water-stop curtain 2, excavate the first step cubic metre of earth；
Step 2：Construction cap 1；
Step 3：Excavate second step cubic metre of earth；
Step 4：Construction level supports 5 and waist rail 3；
Step 5：Excavate the 3rd step cubic metre of earth；
Step 6：Sole plate 10 → (material is plain concrete to 9 → force transferring structure of base exterior wall 8 of constructing again, not low for construction
In C25)；
Step 7：Maintenance construction sole plate 10, base exterior wall 9 of constructing again, force transferring structure 8, (have supporting to some strength
Designing unit's checking computations are given, that is, reach the intensity requirement for removing horizontal support 5)；While construct bearing diagonal (steel pipe or reinforced concrete
Soil) 11；
Step 8：Remove horizontal support 5 and waist rail 3；
Step 9：Construction technology horizontal structure 7；
Step 10：Sequence construction superstructure.
Embodiment two：
The step of with old support replacement method one to three constructions always, follow-up is as follows：
Step one：Reserved wall reinforcing bar 4, the concrete strength and seepage-resistant grade of horizontal support 5 while construction level support 5
It is consistent with base exterior wall 9；
Step 2：Construction sole plate 10 → construction force transferring structure 8 (material is plain concrete, is not less than C25) and waterproof
Layer and protective layer；
Step 3：At the construction joint of 9 → foundation level of base exterior wall of constructing again structure 7, base exterior wall 9 and horizontal support 5
Expanded rubber sealing rod is set, to ensure the waterproof effect of base exterior wall；
Step 3：Maintenance construction sole plate 10, base exterior wall 9 of constructing again, foundation level structure 7, reach design strength
Afterwards, just possesses the condition for removing horizontal support 5.
While sequence construction superstructure；
Step 4：Remove horizontal support 5.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (3)
1. a kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure, it is characterised in that comprise the following steps：
Step one：Earth excavation, construction cap, horizontal support and waist rail；
Step 2：Reserved wall reinforcing bar while construction level is supported；
Step 3：Construction sole plate, force transferring structure and waterproof layer and protective layer；
Step 4：Maintenance construction sole plate；
Step 5：Then construct base exterior wall and foundation level structure, while sequence construction superstructure；
Step 6：Remove horizontal support.
2. a kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure according to claim 1, it is characterised in that institute
The concrete strength and seepage-resistant grade for stating horizontal support are consistent with base exterior wall.
3. a kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure according to claim 1, it is characterised in that institute
State and expanded rubber sealing rod is set at the construction joint of base exterior wall and horizontal support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203650.XA CN106836241A (en) | 2017-03-30 | 2017-03-30 | A kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203650.XA CN106836241A (en) | 2017-03-30 | 2017-03-30 | A kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure |
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| CN106836241A true CN106836241A (en) | 2017-06-13 |
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| CN201710203650.XA Pending CN106836241A (en) | 2017-03-30 | 2017-03-30 | A kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740420A (en) * | 2017-09-15 | 2018-02-27 | 浙江申诚环境工程有限公司 | Foundation ditch tears support and support replacement system and method open |
| CN108487252A (en) * | 2018-03-13 | 2018-09-04 | 中铁第四勘察设计院集团有限公司 | A kind of deep foundation pit open cutting is suitable to make construction method |
| CN109837910A (en) * | 2019-02-19 | 2019-06-04 | 中国建筑第八工程局有限公司 | The foundation ditch construction method that contrary sequence method and bracing members combine |
| CN109837908A (en) * | 2019-02-19 | 2019-06-04 | 中国建筑第八工程局有限公司 | Foundation ditch construction method |
| CN111519634A (en) * | 2020-04-30 | 2020-08-11 | 中国一冶集团有限公司 | Temporary support replacing structure and support disassembling and replacing construction method |
| CN111926859A (en) * | 2020-08-11 | 2020-11-13 | 中建科工集团有限公司 | Basement construction method |
| CN112095666A (en) * | 2020-08-18 | 2020-12-18 | 中国建筑第八工程局有限公司 | Rapid construction method of open-cut tunnel |
| CN112359844A (en) * | 2020-11-23 | 2021-02-12 | 中国电建集团江西省电力建设有限公司 | Foundation pit supporting structure and construction method thereof |
| CN114687360A (en) * | 2022-05-05 | 2022-07-01 | 山西建设投资集团有限公司 | Deep foundation pit support dismantling and replacing construction method for building construction |
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| KR100393515B1 (en) * | 2001-03-29 | 2003-08-14 | 김상수 | Afforestation Retaining-Wall laying Concrete-block |
| CN101886392A (en) * | 2010-06-30 | 2010-11-17 | 济南鼎汇土木工程技术有限公司 | Supporting design and construction method of foundation pit supporting system |
| CN104652443A (en) * | 2013-11-21 | 2015-05-27 | 中冶天工上海十三冶建设有限公司 | Construction method for temporary horizontal supports serving as permanent structural beams simultaneously of deep foundation pit |
| CN105951848A (en) * | 2016-07-01 | 2016-09-21 | 杭州江润科技有限公司 | Non-intermittent composite transfer structure for super-deep foundation pit support and construction method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100393515B1 (en) * | 2001-03-29 | 2003-08-14 | 김상수 | Afforestation Retaining-Wall laying Concrete-block |
| CN101886392A (en) * | 2010-06-30 | 2010-11-17 | 济南鼎汇土木工程技术有限公司 | Supporting design and construction method of foundation pit supporting system |
| CN104652443A (en) * | 2013-11-21 | 2015-05-27 | 中冶天工上海十三冶建设有限公司 | Construction method for temporary horizontal supports serving as permanent structural beams simultaneously of deep foundation pit |
| CN105951848A (en) * | 2016-07-01 | 2016-09-21 | 杭州江润科技有限公司 | Non-intermittent composite transfer structure for super-deep foundation pit support and construction method |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740420A (en) * | 2017-09-15 | 2018-02-27 | 浙江申诚环境工程有限公司 | Foundation ditch tears support and support replacement system and method open |
| CN108487252A (en) * | 2018-03-13 | 2018-09-04 | 中铁第四勘察设计院集团有限公司 | A kind of deep foundation pit open cutting is suitable to make construction method |
| CN109837910A (en) * | 2019-02-19 | 2019-06-04 | 中国建筑第八工程局有限公司 | The foundation ditch construction method that contrary sequence method and bracing members combine |
| CN109837908A (en) * | 2019-02-19 | 2019-06-04 | 中国建筑第八工程局有限公司 | Foundation ditch construction method |
| CN109837908B (en) * | 2019-02-19 | 2021-08-17 | 中国建筑第八工程局有限公司 | Foundation pit construction method |
| CN111519634A (en) * | 2020-04-30 | 2020-08-11 | 中国一冶集团有限公司 | Temporary support replacing structure and support disassembling and replacing construction method |
| CN111519634B (en) * | 2020-04-30 | 2022-05-10 | 中国一冶集团有限公司 | Support removing and replacing construction method of temporary support replacing structure |
| CN111926859A (en) * | 2020-08-11 | 2020-11-13 | 中建科工集团有限公司 | Basement construction method |
| CN112095666A (en) * | 2020-08-18 | 2020-12-18 | 中国建筑第八工程局有限公司 | Rapid construction method of open-cut tunnel |
| CN112359844A (en) * | 2020-11-23 | 2021-02-12 | 中国电建集团江西省电力建设有限公司 | Foundation pit supporting structure and construction method thereof |
| CN114687360A (en) * | 2022-05-05 | 2022-07-01 | 山西建设投资集团有限公司 | Deep foundation pit support dismantling and replacing construction method for building construction |
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Application publication date: 20170613 |