CN105756075A - Horizontal bearing combined foundation based on piles and underground continuous wall and method - Google Patents
Horizontal bearing combined foundation based on piles and underground continuous wall and method Download PDFInfo
- Publication number
- CN105756075A CN105756075A CN201610110886.4A CN201610110886A CN105756075A CN 105756075 A CN105756075 A CN 105756075A CN 201610110886 A CN201610110886 A CN 201610110886A CN 105756075 A CN105756075 A CN 105756075A
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- Prior art keywords
- diaphram wall
- lateral load
- horizontal
- under lateral
- stake
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
Abstract
The invention discloses a horizontal bearing combined foundation based on piles and an underground continuous wall and a method.The horizontal bearing combined foundation comprises the underground continuous wall and the multiple horizontal load-bearing piles arranged underground, a top plate is arranged at the top face of the underground continuous wall, the horizontal load-bearing piles are embedded into the bottom face of the underground continuous wall, and the combined foundation is used for bearing horizontal loads.The piles and the underground continuous wall are combined to serve as the foundation bearing horizontal loads, the advantage of high horizontal rigidity of the underground continuous wall is brought into play, and meanwhile embedding of the foundation is guaranteed through the piles on the lower portion.
Description
Technical field
The present invention relates to horizontal bearing combination foundation, be specifically related to a kind of horizontal bearing combination foundation based on stake and diaphram wall and method.
Background technology
Power engineering, hydraulic engineering, skyscraper etc., in all kinds of engineerings, have a large amount of buildings or structures because of the particularity of technique, often make structure bear very big level to load power.Such as: in power engineering, the auxiliary building such as coal storage canopy is likely to cause building basis that sidesway occurs due to indoor large-area load；In ocean engineering, such as marine power transmission tower, offshore wind generating etc., base structure suffers from the levels such as wave force, horizontal seismic force, ship impact force to carrying power effect.In these engineering objects design, horizontal loading often becomes its control load in basic engineering.The structural elements resisting horizontal force at present mainly has basis, stake, diaphram wall, and wherein piles under lateral load is most widely used.
Piles under lateral load work progress exists following unfavorable factor: 1. piles under lateral load is along with the long increase of stake, displacement at pile top is also gradually reduced, but when stake is long increase to certain length time, when other conditions are constant, displacement at pile top tends to certain value, the namely simple long horizontal bearing capacity limited use to improving stake of increase stake.2., owing to bearing the appearance of the special circumstances of greater level power in a large number, bigger requirement is proposed the horizontal bearing capacity of stake.
Advantage a lot of engineerings at home and abroad such as diaphram wall is big with himself integral rigidity, intensity is high, antiseepage gear soil are obtained for application.Current diaphram wall is used in pattern foundation pit supporting structure mostly as horizontal bearing capacity component, based on component also many shear wall uses bearing vertical load and horizontal loading as " double; two wall unification ", be mostly used as Bridge anchorage basis.At present for the mechanism of action of the horizontal bearing capacity of diaphram wall also on probation and conceptual phase.
Summary of the invention
For solving the deficiency that prior art exists, the invention discloses the horizontal bearing combination foundation based on stake and diaphram wall and method, the present invention is that construction costs is low, the combination foundation form of reduction of erection time, rationally increases the horizontal capability of the top soil body, the quantity reducing piles under lateral load and length by stake+diaphram wall combination foundation.
For achieving the above object, the concrete scheme of the present invention is as follows:
Based on the horizontal bearing combination foundation of stake and diaphram wall, including: it is arranged at the diaphram wall of underground and multiple piles under lateral load；
The end face of diaphram wall is provided with top board, and the bottom surface of diaphram wall embeds multiple piles under lateral load, and described combination foundation is used for bearing horizontal loading.
Further, in order to better bear horizontal loading, the plurality of piles under lateral load is evenly distributed on below diaphram wall, is used for supporting diaphram wall.
Further, described piles under lateral load embeds top diaphram wall no less than 100mm.
Further, the main muscle of described piles under lateral load enters the main muscle diameter that diaphram wall length is not less than 40 times.
Based on the construction method of the horizontal bearing combination foundation of stake and diaphram wall, comprise the following steps:
Step one: in the piles under lateral load of ground construction bottom；
Step 2: excavation guide groove or overall excavation, the diaphram wall at construction top；
Step 3: lower horizontal load-bearing stake to embed top diaphram wall no less than 100mm, the main muscle of piles under lateral load enters the main muscle diameter that diaphram wall length is not less than 40 times；
Step 4: piles under lateral load and diaphram wall constitute combination foundation, the drag of the soil body is uprightly excavated to ensure in the back of the body lotus face of combination foundation, and diaphram wall internal backfill soil is closely knit；
Step 5: diaphram wall end face arranges top board.
Beneficial effects of the present invention:
The present invention bears the base form of horizontal loading, is combined together as bearing the basis of horizontal loading by stake and diaphram wall, plays the advantage that diaphram wall horizontal rigidity is big, and the stake simultaneously also by bottom ensure that basic build-in.This combination foundation form has met the variation rigidity new design concept that the big position of deformation increases rigidity Reducing distortion, deforms little place reduction rigidity saving expense.Under horizontal loads, relative ground continuous wall base, stake and diaphram wall combination foundation can reduce height and the planar dimension of ground continuous wall base；Relative level load-bearing pile foundation, stake and diaphram wall combination foundation can reduce a number, save engineering cost.
Accompanying drawing explanation
The combination foundation floor map of Fig. 1 present invention；
The combination foundation generalized section of Fig. 2 present invention；
In figure, 1, piles under lateral load, 2, diaphram wall, 3, load-bearing face, 4, back of the body lotus face, 5, top board, 6, horizontal loading.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is described in detail:
The present invention is directed to the existing multi-column pier foundation Lack of support bearing horizontal loading, there is provided that a kind of construction costs is low, the combination foundation form of reduction of erection time, rationally increase the horizontal capability of the top soil body, the quantity reducing piles under lateral load 1 and length by piles under lateral load 1+ diaphram wall 2 combination foundation.
As shown in Figure 1-2, the present invention constitutes, by piles under lateral load 1 and diaphram wall 2 are combined, the combination foundation that can bear horizontal loading, it is made up of top diaphram wall 2 and lower horizontal load-bearing stake 1, diaphram wall 2 top arranges top board 5, and piles under lateral load 1 top embeds in diaphram wall body 2.Diaphram wall 2 and multiple piles under lateral load 1 are arranged at underground.
In order to better bear diaphram wall, multiple piles under lateral load 1 are evenly distributed on below diaphram wall 2, are used for supporting diaphram wall 2.
In the two sides that diaphram wall 2 is relative, wherein one side is load-bearing face 3, and another side is back of the body lotus face 4, and horizontal loading 6 is applied on load-bearing face 3.The both sides on the ground of diaphram wall 2 are respectively embedded into 3 piles under lateral load 1.
The stake of the present invention+diaphram wall horizontal bearing combination foundation is carried out in the following ways:
1. piles under lateral load 1+ diaphram wall horizontal bearing combination foundation is made up of piles under lateral load 1, diaphram wall 2, and lower horizontal load-bearing stake 1, top are diaphram wall 2, and diaphram wall 2 top arranges top board 5.First in the piles under lateral load 1 of ground construction bottom, then excavation guide groove or overall excavation, the diaphram wall 2 at construction top, lower horizontal load-bearing stake 1 to embed top diaphram wall 2 no less than 100mm, and the main muscle of piles under lateral load 1 enters the bar diameter that diaphram wall 2 length is not less than 40 times.
2. the drag of the soil body is uprightly excavated to ensure in the back of the body lotus face 4 of combination foundation, and diaphram wall 2 internal backfill soil is closely knit.
The specific embodiment of the present invention is described in conjunction with accompanying drawing although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme, those skilled in the art need not pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (5)
1., based on the horizontal bearing combination foundation of stake and diaphram wall, it is characterized in that, including: it is arranged at the diaphram wall of underground and multiple piles under lateral load；
The end face of diaphram wall is provided with top board, and the bottom surface of diaphram wall embeds multiple piles under lateral load, and described combination foundation is used for bearing horizontal loading.
2. the horizontal bearing combination foundation based on stake and diaphram wall as claimed in claim 1, is characterized in that, the plurality of piles under lateral load is evenly distributed on below diaphram wall, is used for supporting diaphram wall.
3. the horizontal bearing combination foundation based on stake and diaphram wall as claimed in claim 1, is characterized in that, described piles under lateral load embeds top diaphram wall no less than 100mm.
4. the horizontal bearing combination foundation based on stake and diaphram wall as claimed in claim 1, is characterized in that, the main muscle of described piles under lateral load enters the main muscle diameter that diaphram wall length is not less than 40 times.
5. the construction method of the horizontal bearing combination foundation based on stake and diaphram wall as described in as arbitrary in claim 1-4, is characterized in that, comprise the following steps:
Step one: in the piles under lateral load of ground construction bottom；
Step 2: excavation guide groove or overall excavation, the diaphram wall at construction top；
Step 3: lower horizontal load-bearing stake to embed top diaphram wall no less than 100mm, the main muscle of piles under lateral load enters the main muscle diameter that diaphram wall length is not less than 40 times；
Step 4: piles under lateral load and diaphram wall constitute combination foundation, the drag of the soil body is uprightly excavated to ensure in the back of the body lotus face of combination foundation, and diaphram wall internal backfill soil is closely knit；
Step 5: diaphram wall end face arranges top board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610110886.4A CN105756075A (en) | 2016-02-29 | 2016-02-29 | Horizontal bearing combined foundation based on piles and underground continuous wall and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610110886.4A CN105756075A (en) | 2016-02-29 | 2016-02-29 | Horizontal bearing combined foundation based on piles and underground continuous wall and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105756075A true CN105756075A (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610110886.4A Pending CN105756075A (en) | 2016-02-29 | 2016-02-29 | Horizontal bearing combined foundation based on piles and underground continuous wall and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968265A (en) * | 2017-04-28 | 2017-07-21 | 山东电力工程咨询院有限公司 | A kind of combination foundation and method for bearing horizontal loading |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62160321A (en) * | 1986-01-06 | 1987-07-16 | Taisei Corp | Earthquake proofing and reinforcing work for pile foundation structure |
| JP2001226987A (en) * | 2000-02-17 | 2001-08-24 | Nishimatsu Constr Co Ltd | Earthquake resistant footing structure, earthquake resisting structure and pile reinforcing method |
| JP2006214201A (en) * | 2005-02-04 | 2006-08-17 | Toda Constr Co Ltd | Composite foundation of piles and continuous underground wall |
| CN1837514A (en) * | 2006-04-17 | 2006-09-27 | 陈星� | Column supported underground continuous wall |
| CN101270580A (en) * | 2007-03-23 | 2008-09-24 | 上海勘测设计研究院 | Building pile structure for soft ground base |
| CN104018518A (en) * | 2014-05-30 | 2014-09-03 | 浙江大学宁波理工学院 | Prefabricated underground diaphragm wall and method for constructing outer basement wall and floor slabs |
| CN205024719U (en) * | 2015-09-30 | 2016-02-10 | 上海建工二建集团有限公司 | Pile foundation and integrated reverse construction vertical braces system of underground continuous wall |
-
2016
- 2016-02-29 CN CN201610110886.4A patent/CN105756075A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62160321A (en) * | 1986-01-06 | 1987-07-16 | Taisei Corp | Earthquake proofing and reinforcing work for pile foundation structure |
| JP2001226987A (en) * | 2000-02-17 | 2001-08-24 | Nishimatsu Constr Co Ltd | Earthquake resistant footing structure, earthquake resisting structure and pile reinforcing method |
| JP2006214201A (en) * | 2005-02-04 | 2006-08-17 | Toda Constr Co Ltd | Composite foundation of piles and continuous underground wall |
| CN1837514A (en) * | 2006-04-17 | 2006-09-27 | 陈星� | Column supported underground continuous wall |
| CN101270580A (en) * | 2007-03-23 | 2008-09-24 | 上海勘测设计研究院 | Building pile structure for soft ground base |
| CN104018518A (en) * | 2014-05-30 | 2014-09-03 | 浙江大学宁波理工学院 | Prefabricated underground diaphragm wall and method for constructing outer basement wall and floor slabs |
| CN205024719U (en) * | 2015-09-30 | 2016-02-10 | 上海建工二建集团有限公司 | Pile foundation and integrated reverse construction vertical braces system of underground continuous wall |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968265A (en) * | 2017-04-28 | 2017-07-21 | 山东电力工程咨询院有限公司 | A kind of combination foundation and method for bearing horizontal loading |
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Application publication date: 20160713 |