CN106245656A - A kind of construction method of the supporting improving sidesway for master and slave type foundation ditch group - Google Patents
A kind of construction method of the supporting improving sidesway for master and slave type foundation ditch group Download PDFInfo
- Publication number
- CN106245656A CN106245656A CN201610626109.5A CN201610626109A CN106245656A CN 106245656 A CN106245656 A CN 106245656A CN 201610626109 A CN201610626109 A CN 201610626109A CN 106245656 A CN106245656 A CN 106245656A
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- hole
- foundation ditch
- retaining structure
- supporting
- construction method
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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)
- Sewage (AREA)
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Abstract
The invention discloses the construction method of a kind of supporting improving sidesway for master and slave type foundation ditch group, relate to civil construction pattern foundation pit supporting structure field.The present invention is by increasing supporting water-retaining structure plate in the building enclosure of Zi Keng side, and carry out relevant parameter optimization, make to have between master and slave type foundation ditch firmer support system, avoid female hole and lateral displacement occurs to Zi Keng side, and play the effect of water proof, and then avoid the disasters such as surrounding soil generation sedimentation.Meanwhile, the working condition requirement of construction is the highest, and construction costs is low, and can realize recycling, and suits the green engineering theory of sustainable development.
Description
Technical field
The present invention relates to civil construction pattern foundation pit supporting structure field, be specifically related to a kind of improve sidesway for master and slave type foundation ditch group
The construction method of supporting.
Background technology
Along with the intensive development in soft soil foundation building city, deep-foundation pit engineering gets more and more, owing to town site is got over
Coming the most nervous, cause and build more crypto set in a large number, around foundation ditch, underground installation is more intricate.More and more combined, many
The regional super-giant foundation pit planting city function has become the complicated foundation ditch group cheated in even hole, hole, hole to occur, including novel
Master and slave type foundation ditch, it refers to the foundation ditch group of the adjacent type of small one and large one foundation ditch, and this structure is built at city foundation ditch now
In relatively conventional, but, adjacent multiple deep big foundation pits in succession or synchronize excavation can to surrounding enviroment produce than single excavation of foundation pit
More complicated impact, the foundation pit construction harm of master and slave type colony is two foundation ditch hydraulic pressure blood pressure lowering constructions: execute for meeting deep pit monitor
Work requirement, certainly will require a large amount of precipitation, and precipitation over a long time, necessarily cause lateral displacement of pit, to neighboring buildings, road, pipeline band
Endanger.Multi-level complicated foundation ditch group, in work progress, there is also significantly interaction, as rear between the foundation ditch of master and slave type
Construction foundation pit to construction foundation pit enclosure wall, support system, complete structure produce harm, and structure complete after sedimentation speed
The uneven problem of Cracking caused of rate.
At present, China uses campshed to add suspension roof support system for the processing method that this lateral displacement of pit is main, and off-load is also
Anchored pile supporting is carried out reasonably optimizing.Owing to level of ground water is higher, and the degree of depth of mollisol is relatively deep, props up if carried out piled anchor
If protecting, it is impossible to stablizing of effective guarantee foundation ditch, thus cause the infiltration of soft soil foundation, lack the effectiveness of engineering, exist
Certain potential safety hazard.
Summary of the invention
Embodiments provide the construction method of a kind of supporting improving sidesway for master and slave type foundation ditch group, in order to solve
The problem that certainly there is lateral displacement of pit in prior art.
Embodiments provide the construction method of a kind of supporting improving sidesway for master and slave type foundation ditch group, including:
According to engineering mother's foundation ditch size, in the construction operation region specified, use making ruler mark position；At labelling
Position is arranged around campshed and enclosure wall, earth excavation, digs out square hole one, arranges one week baffle plate one inside square hole one,
Injecting the uniform concrete of a layer thickness between square hole one and baffle plate one, described concrete layer is female hole；
Cheat size according to engineering subbase, in the construction operation region specified, use making ruler mark position；At labelling
Position is arranged around campshed and enclosure wall, earth excavation, digs out square hole two, arranges one week baffle plate two inside square hole two,
Injecting the uniform concrete of a layer thickness between square hole two and baffle plate two, described concrete layer is sub-hole；
According to described subbase hole size, select to measure in the left side in sub-hole, and according to the concrete slice width in son hole
Degree, is marked at the buried depth of one times of distance of the concrete layer width in distance hole, disposes in mark position simultaneously
Supporting water-retaining structure plate.
Preferably, in digging process, mother hole, the surrounding building in sub-hole are monitored in real time, it is ensured that work progress
Safety.
Preferably, the upper surface of described supporting water-retaining structure plate is positioned at same level with the upper surface in son hole, a bib
The lower surface of water-bound plate is positioned at the lower section 1.5m of the plane at place bottom sub-hole, the width of supporting water-retaining structure plate and son hole
Concrete layer width is equal.
Preferably, described supporting water-retaining structure plate includes rubber layer and reinforcing bar, and described steel-bar arrangement is in rubber layer.
In the embodiment of the present invention, combine the principle of diaphragm wall secondary supporting, make between master and slave type foundation ditch, there be firmer propping up
Watch box system, it is to avoid female hole occurs lateral displacement and infiltration to Zi Keng side, and then avoids the disasters such as surrounding soil generation sedimentation；
By increasing supporting water-retaining structure plate, improve the comprcssive strength of foundation ditch, thus improve the stability in the large of foundation ditch；The present invention
Reinforcing for complicated soft foundation and have significant advantage, technique is simple, and effect is obvious, and saving material, construction costs are low.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is master and slave type foundation ditch site plan；
Fig. 2 is supporting water-retaining structure plate schematic diagram.
Description of reference numerals:
The square hole of 1-1-one, 1-2-baffle plate one, mother 1-3-cheats, the square hole of 2-1-two, 2-2-baffle plate two, and 2-3-is cheated, 3-
Supporting water-retaining structure plate, 4-rubber layer, 5-reinforcing bar.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The construction method of a kind of supporting improving sidesway for master and slave type foundation ditch group that the embodiment of the present invention provides, including with
Lower step:
Step 1, the stage excavation of master and slave type foundation ditch group:
1) female foundation ditch size: according to engineering mother's foundation ditch size, uses making ruler labelling in the construction operation region specified
Position；It is arranged around campshed and enclosure wall, earth excavation in the position of labelling, digs out square hole one 1-1, at square hole one 1-1
Inner side arranges one week baffle plate one 1-2, injects the uniform concrete of a layer thickness, institute between square hole one 1-1 and baffle plate one 1-2
State concrete layer and be female hole 1-3；
2) sub-hole size: cheat size according to engineering subbase, uses making ruler marker bit in the construction operation region specified
Put；It is arranged around campshed and enclosure wall, earth excavation in the position of labelling, digs out square hole two 2-1, in square hole two 2-1
Side arranges one week baffle plate two 2-2, injects the uniform concrete of a layer thickness between square hole two 2-1 and baffle plate two 2-2, described
Concrete layer is sub-hole 2-3；
It should be noted that in digging process, buildings around foundation pit is monitored in real time, it is ensured that in work progress
Safety.
Step 2, the increase of supporting water-retaining structure plate 3:
Select to measure in the left side of sub-hole 2-3, and according to the concrete layer width of son hole 2-3, at distance hole 2-3
Concrete layer width one times of distance buried depth at be marked, simultaneously carry out disposing supporting water-retaining structure plate in mark position
3；
It should be noted that the upper surface that the upper surface of described supporting water-retaining structure plate 3 and son cheat 2-3 is positioned at same level
Face, the lower surface of supporting water-retaining structure plate 3 is positioned at the lower section 1.5m of the plane at place bottom sub-hole 2-3, supporting water-retaining structure plate 3
Width equal with the concrete layer width of son hole 2-3, thus prevent female hole from seeping water to sub-hole.
It should be noted that supporting water-retaining structure plate 3 includes rubber layer 4 and reinforcing bar 5, reinforcing bar 5 is arranged on rubber layer 4
In.
It should be noted that rubber layer 4 is macromolecule material, reinforcing bar 5 is stainless steel, and this supporting water-retaining structure plate is
The reinforcing bar of Φ 108@0.4m is carried out the colligation of triangular matrix form, more regular is combined, will make meanwhile
Steelframe be put in prefabricated mould, the rubber of liquid is injected in mould, carries out emptying gap and process；The supporting construction of reinforcing bar is protected
Stability in card foundation pit construction, will not occur sidesway, and the rubber of macromolecular material ensure that the water-resisting property of structure, it is to avoid execute
The generation of the infiltration accident in work.
The present invention is by increasing the supporting water-retaining structure plate that a row is appropriate in the building enclosure of Zi Keng side, and is correlated with
Parameter optimization, make to have between master and slave type foundation ditch firmer support system, it is to avoid female hole occurs lateral displacement to Zi Keng side, and
And play the effect of water proof, and then avoid the disasters such as surrounding soil generation sedimentation.Meanwhile, this supporting water-retaining structure plate, is profit
With the combination of water proof rubber material Yu reinforcing bar, in quality of rubber materials, regular addition reinforcing bar, both can guarantee that the water proof of himself
Property, pliability can be strengthened again, play a supporting role in the foundation ditch of stage excavation, convenient operation, practical.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and amendment to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (4)
1. the construction method of the supporting improving sidesway for master and slave type foundation ditch group, it is characterised in that including:
According to engineering mother's foundation ditch size, in the construction operation region specified, use making ruler mark position；Position at labelling
It is arranged around campshed and enclosure wall, earth excavation, digs out square hole one (1-1), one week gear is set in square hole one (1-1) inner side
Plate one (1-2), injects the uniform concrete of a layer thickness, described concrete between square hole one (1-1) and baffle plate one (1-2)
Layer is female hole (1-3)；
Cheat size according to engineering subbase, in the construction operation region specified, use making ruler mark position；Position at labelling
It is arranged around campshed and enclosure wall, earth excavation, digs out square hole two (2-1), one week gear is set in square hole two (2-1) inner side
Plate two (2-2), injects the uniform concrete of a layer thickness, described concrete between square hole two (2-1) and baffle plate two (2-2)
Layer is sub-hole (2-3)；
According to described subbase hole size, select to measure in the left side of Zi Keng (2-3), and according to the coagulation of son hole (2-3)
Soil layer width, is marked, simultaneously at marker bit at the buried depth of one times of distance of the concrete layer width of distance son hole (2-3)
Put and carry out disposing supporting water-retaining structure plate (3).
2. construction method as claimed in claim 1, it is characterised in that in digging process, mother is cheated (1-3), sub-hole (2-3)
Surrounding building monitor in real time, it is ensured that the safety of work progress.
3. construction method as claimed in claim 1, it is characterised in that the upper surface of described supporting water-retaining structure plate (3) and son
The upper surface in hole (2-3) is positioned at same level, and the lower surface of supporting water-retaining structure plate (3) is positioned at place, bottom, sub-hole (2-3)
The lower section 1.5m of plane, the width of supporting water-retaining structure plate (3) is equal with the concrete layer width of Zi Keng (2-3).
4. construction method as claimed in claim 1, it is characterised in that described supporting water-retaining structure plate (3) includes rubber layer
(4) in and reinforcing bar (5), described reinforcing bar (5) is arranged on rubber layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610626109.5A CN106245656B (en) | 2016-08-02 | 2016-08-02 | A kind of construction method for the supporting improving sidesway for master and slave type foundation pit group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610626109.5A CN106245656B (en) | 2016-08-02 | 2016-08-02 | A kind of construction method for the supporting improving sidesway for master and slave type foundation pit group |
Publications (2)
| Publication Number | Publication Date |
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| CN106245656A true CN106245656A (en) | 2016-12-21 |
| CN106245656B CN106245656B (en) | 2018-12-18 |
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| CN201610626109.5A Active CN106245656B (en) | 2016-08-02 | 2016-08-02 | A kind of construction method for the supporting improving sidesway for master and slave type foundation pit group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476315A (en) * | 2017-09-07 | 2017-12-15 | 东北大学 | A kind of prefabricated component and its construction method being directed to close to type foundation ditch |
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| CN1690317A (en) * | 2004-04-29 | 2005-11-02 | 宝山钢铁股份有限公司 | Method for measuring pipe pile swing resulted from foundation ditch digging |
| CN101545260A (en) * | 2008-03-27 | 2009-09-30 | 中国二十冶建设有限公司 | Method for supporting bored filling pile driven by stirring pile in foundation pit, group pit and middle pit |
| CN201865127U (en) * | 2010-10-18 | 2011-06-15 | 中冶成工上海五冶建设有限公司 | Reinforced waterproof late poured band of basement bottom plate |
| CN104775447A (en) * | 2015-04-13 | 2015-07-15 | 中国电力工程顾问集团中南电力设计院有限公司 | Composite base framework used for power transmission tower in steep mountainous area and construction technology thereof |
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- 2016-08-02 CN CN201610626109.5A patent/CN106245656B/en active Active
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| KR100313720B1 (en) * | 1999-01-13 | 2001-11-15 | 김징완 | Composite Underground Structure Construction Method |
| CN1690317A (en) * | 2004-04-29 | 2005-11-02 | 宝山钢铁股份有限公司 | Method for measuring pipe pile swing resulted from foundation ditch digging |
| CN101545260A (en) * | 2008-03-27 | 2009-09-30 | 中国二十冶建设有限公司 | Method for supporting bored filling pile driven by stirring pile in foundation pit, group pit and middle pit |
| CN201865127U (en) * | 2010-10-18 | 2011-06-15 | 中冶成工上海五冶建设有限公司 | Reinforced waterproof late poured band of basement bottom plate |
| CN104775447A (en) * | 2015-04-13 | 2015-07-15 | 中国电力工程顾问集团中南电力设计院有限公司 | Composite base framework used for power transmission tower in steep mountainous area and construction technology thereof |
| CN105568959A (en) * | 2015-12-28 | 2016-05-11 | 上海市机械施工集团有限公司 | Prefabricated assembly type blocking wall device and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476315A (en) * | 2017-09-07 | 2017-12-15 | 东北大学 | A kind of prefabricated component and its construction method being directed to close to type foundation ditch |
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| Publication number | Publication date |
|---|---|
| CN106245656B (en) | 2018-12-18 |
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Application publication date: 20161221 Assignee: SHEN KAN ENGINEERING & TECHNOLOGY CORPORATION, MCC Assignor: Northeastern University Contract record no.: X2021210000041 Denomination of invention: A construction method of improving lateral displacement support for sub parent foundation pit group Granted publication date: 20181218 License type: Common License Record date: 20210910 |