CN107842026A - The foundation pit supporting construction and method that a kind of horizontal ground-connecting-wall mixes with double-row pile - Google Patents
The foundation pit supporting construction and method that a kind of horizontal ground-connecting-wall mixes with double-row pile Download PDFInfo
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- CN107842026A CN107842026A CN201711251405.2A CN201711251405A CN107842026A CN 107842026 A CN107842026 A CN 107842026A CN 201711251405 A CN201711251405 A CN 201711251405A CN 107842026 A CN107842026 A CN 107842026A
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- row pile
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 46
- 238000010276 construction Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000012141 concentrate Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000010835 comparative analysis Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention provides the foundation pit supporting construction that a kind of horizontal ground-connecting-wall mixes with double-row pile, including the double-row pile being mainly made up of stake, the horizontal ground-connecting-wall of lateral arrangement and strip is provided with the long side of the double-row pile.Present invention also offers the foundation pit supporting method that a kind of horizontal ground-connecting-wall mixes with double-row pile.The beneficial effects of the invention are as follows：Ground-connecting-wall is horizontal and mixed with double-row pile, rigidity reinforcement is carried out to Double-row Piles Support system by horizontal ground-connecting-wall, equalize the global displacement of foundation ditch, the horizontal distortion of the effective three-dimensional effect and midpoint for reducing foundation ditch horizontal distortion, so that the support system is applied in relatively deep and longer foundation ditch.
Description
Technical field
The present invention relates to supporting construction, more particularly to a kind of foundation pit supporting construction that is mixed with double-row pile of horizontal ground-connecting-wall with
Method.
Background technology
Foundation pit supporting construction is to ensure the safety of Underground Construction and foundation ditch surrounding enviroment, and foundation pit side-wall is used
Retaining structure.The foundation pit supporting construction similar to the present invention mainly has Retaining Structure with Double-row Piles and Diaphragm Wall Support Structure.
（1）Retaining Structure with Double-row Piles
The form of Retaining Structure with Double-row Piles is by being developed in Single row pillars supporting construction, and it is that have front-seat and heel row steel
The reinforced concrete coupling beamses composition of campshed before and after rib concrete pile, and connection.
Double-row pile is a space redundant structure system due to there is coupling beam connection, and rigidity is larger, and preceding campshed plays supporting file and made
With heel row loads supporting file and draws anchor effect.In the case where soil body effect is complicated, the redundant structure of double-row pile can be reasonably
The distribution of force of adjustment structure system, so that structure is more stable, safety.
With the development of design theory and the progress of engineering technology, different Double-row-piles Structure forms is gradually applied in work
In journey practice, such as rectangle lattice, T-shaped formula, double trigonometric expressions, quincunx, single trigonometric expression, broken-line type.
（2）Diaphragm Wall Support Structure
Diaphram wall is that foundation engineering uses a kind of trench machine on the ground, along the periphery axis of deep excavation project,
Under the conditions of mud off, a long and narrow deep trouth is excavated out, after clear groove, steel reinforcement cage is hung in groove, then with tremie method placing
Underwater concrete builds up a unit groove section, so carries out paragraph by paragraph, and continuous armored concrete wall together is built up in underground, is made
To intercept water, antiseepage, load-bearing, water-retaining structure.
Traditional Retaining Structure with Double-row Piles, the bending rigidity of diverse location stake is identical, due to the side of quadrangle support system
Corner effect, the horizontal distortion of supporting construction have obvious three-dimensional effect, i.e., along certain side of foundation ditch, the horizontal position at stake top
Moving has the characteristics of two is small broad in the middle, and for deeper foundation ditch, the horizontal displacement of midpoint is often difficult to meet wanting for specification
Ask；And traditional diaphram wall is often arranged along the periphery axis direction of excavation project, in the bending resistance with axis vertical direction
Rigidity is smaller, it is therefore desirable to it is used in combination with structure types such as inner supports to control lateral deformation, and the presence of inner support reduces
Internal excavation space simultaneously slow down construction speed.
The content of the invention
In order to solve the problems of the prior art, the invention provides the foundation ditch that a kind of horizontal ground-connecting-wall mixes with double-row pile
Supporting construction and method.
The invention provides the foundation pit supporting construction that a kind of horizontal ground-connecting-wall mixes with double-row pile, including mainly it is made up of stake
Double-row pile, the horizontal ground-connecting-wall provided with lateral arrangement and strip in the long side of the double-row pile.
As a further improvement on the present invention, the horizontal ground-connecting-wall is located at the long side midpoint close to double-row pile.
As a further improvement on the present invention, the length direction of the horizontal ground-connecting-wall is vertical with the long side of the double-row pile
Arrangement.
As a further improvement on the present invention, the length-width ratio of the horizontal ground-connecting-wall is 4 to 6.
As a further improvement on the present invention, the horizontal ground-connecting-wall at least two width, the horizontal ground-connecting-wall, which is concentrated, to be connected
Continuous arrangement or scattered arranged for interval.
Present invention also offers the foundation pit supporting method that a kind of horizontal ground-connecting-wall mixes with double-row pile, by double-row pile long side
Some replace with the horizontal ground-connecting-wall of lateral arrangement and strip.
As a further improvement on the present invention, a width or several horizontal ground-connecting-walls are arranged into the long side close to double-row pile
The position at midpoint.
As a further improvement on the present invention, by several horizontal spaced apart arrangements of ground-connecting-wall.
As a further improvement on the present invention, several horizontal ground-connecting-walls are concentrated into continuous arrangement.
The beneficial effects of the invention are as follows：Horizontal ground-connecting-wall is mixed with double-row pile, double-row pile entered by horizontal ground-connecting-wall
Row rigidity is strengthened, and equalizes the global displacement of foundation ditch, the effective three-dimensional effect and midpoint for reducing foundation ditch horizontal distortion
Horizontal distortion so that the support system is applied in relatively deep and longer foundation ditch.
Brief description of the drawings
Fig. 1 is the schematic diagram of double-row pile in the foundation pit supporting construction that a kind of horizontal ground-connecting-wall of the present invention mixes with double-row pile.
Fig. 2 is the schematic diagram for the foundation pit supporting construction that a kind of horizontal ground-connecting-wall of the present invention mixes with double-row pile.
Fig. 3 is that the foundation pit supporting construction that a kind of horizontal ground-connecting-wall of the present invention mixes with double-row pile arranges that four width are continuously horizontal
The schematic diagram of ground-connecting-wall.
Fig. 4 is the horizontal of the scattered interval of foundation pit supporting construction arrangement that a kind of horizontal ground-connecting-wall of the present invention mixes with double-row pile
The schematic diagram of ground-connecting-wall.
Fig. 5 is the schematic diagram of circle stake in the foundation pit supporting construction that a kind of horizontal ground-connecting-wall of the present invention mixes with double-row pile.
Fig. 6 is the schematic diagram of square pile in the foundation pit supporting construction that a kind of horizontal ground-connecting-wall of the present invention mixes with double-row pile.
Fig. 7 is the signal of horizontal ground-connecting-wall in the foundation pit supporting construction that a kind of horizontal ground-connecting-wall of the present invention mixes with double-row pile
Figure.
Fig. 8 is horizontal ground-connecting-wall width number pair in the foundation pit supporting construction that a kind of horizontal ground-connecting-wall of the present invention mixes with double-row pile
The influence schematic diagram that double-row pile displacement at pile top is distributed along long side.
Fig. 9 is horizontal ground-connecting-wall position pair in the foundation pit supporting construction that a kind of horizontal ground-connecting-wall of the present invention mixes with double-row pile
The influence schematic diagram that double-row pile displacement at pile top is distributed along long side.
Figure 10 is horizontal ground-connecting-wall distribution in the foundation pit supporting construction that a kind of horizontal ground-connecting-wall of the present invention mixes with double-row pile
The influence schematic diagram that mode is distributed to double-row pile displacement at pile top along long side.
Embodiment
The invention will be further described for explanation and embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 10, the foundation pit supporting construction that a kind of horizontal ground-connecting-wall mixes with double-row pile, including mainly by stake
The double-row pile of 5 compositions, the double-row pile include the short side with short side midpoint and the long side 1 with long side midpoint 2, short side and length
The intersection on side is angle point 3, and the horizontal ground-connecting-wall 4 of lateral arrangement and strip is provided with the long side 1 of the double-row pile.
As shown in Figures 1 to 10, the horizontal ground-connecting-wall 4 is located at the long side midpoint 2 of double-row pile.
As shown in Figures 1 to 10, reinforcing bar is provided with the horizontal ground-connecting-wall 4, the horizontal ground-connecting-wall 4 is continuous steel
Reinforced concrete wall.
As shown in Figures 1 to 10, the length direction of the horizontal ground-connecting-wall 4 is arranged vertically with the long side 2 of the double-row pile,
The horizontal ground-connecting-wall 4 is arranged vertically with foundation ditch axis, so as to improve the bending rigidity of the supporting structure system position, effectively
Reduce the three-dimensional effect of supporting construction horizontal distortion.
As shown in Figures 1 to 10, stake 5 is usually circle stake or square pile, and it is similar in different horizontal direction bending rigidities.
The length-width ratio of the horizontal ground-connecting-wall 4 of single width（l/d）4 to 6 are can be usually reached, by ground-connecting-wall（Diaphram wall）It is horizontal, make its long side
Direction is arranged vertically with foundation ditch axis, can greatly improve the bending rigidity of supporting structure system, so as to reduce the level of foundation ditch
Deformation.
As shown in Figures 1 to 10, the horizontal ground-connecting-wall 4 at least two width, the horizontal ground-connecting-wall 4 concentrate continuous arrangement
Or scattered arranged for interval, all different arrangements can reduce the space effect of supporting construction horizontal distortion to varying degrees
Should and maximum horizontal deformation values.
As shown in Figures 1 to 10, the foundation pit supporting method that a kind of horizontal ground-connecting-wall mixes with double-row pile, by double-row pile long side
Some in 1 replaces with the horizontal ground-connecting-wall 4 of lateral arrangement and strip.
As shown in Figures 1 to 10, a width or several horizontal ground-connecting-walls 4 are arranged into close to the long side midpoint 2 of double-row pile
Position.
As shown in Figures 1 to 10, by several horizontal 4 spaced apart arrangements of ground-connecting-wall.
As shown in Figures 1 to 10, several horizontal ground-connecting-walls 4 are concentrated into continuous arrangement.
By using finite element numerical analysis means, to horizontal ground-connecting-wall proposed by the present invention and double-row pile mixing foundation ditch branch
The supporting effect of the supporting effect of protection structure system and traditional double-row pile has carried out comparative analysis, and Fig. 8 is the horizontal of different width numbers
Horizontal Displacement distribution of the support system along long side direction under ground-connecting-wall reinforcement, it can be seen that with horizontal ground-connecting-wall width number
Increase, displacement at pile top reducing；When near foundation ditch angle point, the mixing system displacement at pile top gap of different width numbers is not
Greatly, with the gradual increase apart from foundation ditch angle point distance, the increase of width number can significantly reduce horizontal displacement, wherein increasing by four width
Horizontal displacement of the supporting construction of ground-connecting-wall than traditional double-row pile reduces 43%.
Fig. 9 is that diverse location sets Horizontal Displacement of the support system along long side direction under horizontal ground-connecting-wall reinforcement to divide
Cloth, it can be seen that horizontal ground-connecting-wall is in the middle part of foundation ditch long side（From position 1 to position 6）, the degree of horizontal displacement reduction gets over
Greatly.
Figure 10 is to be distributed under horizontal ground-connecting-wall different distributions mode along the Horizontal Displacement of long side direction, it can be seen that when
In the case of horizontal ground-connecting-wall width number identical, the effect of dispersed placement is slightly better than the effect of centralized arrangement.
Traditional Retaining Structure with Double-row Piles, the bending rigidity of diverse location stake is identical, due to the side of quadrangle support system
Corner effect, the horizontal distortion of supporting construction have obvious three-dimensional effect, i.e., along certain side of foundation ditch, the horizontal position at stake top
Moving has the characteristics of two is small broad in the middle, and for deeper foundation ditch, the horizontal displacement of midpoint is often difficult to meet wanting for specification
Ask, and the rigidity of the double-row pile of foundation ditch corner does not play a role actually completely simultaneously.The present invention proposes one kind horizontally
The foundation pit supporting construction and method that even wall mixes with double-row pile, on the basis of Retaining Structure with Double-row Piles, near foundation ditch midpoint
Several horizontal ground-connecting-walls 4 vertical with the periphery axis direction of excavation project are evenly or unevenly arranged, so as to increase supporting
The bending rigidity of structure, the horizontal distortion of the effective three-dimensional effect and midpoint for reducing foundation ditch horizontal distortion, so that should
Support system is applied in relatively deep and longer foundation ditch.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (9)
- A kind of 1. foundation pit supporting construction that horizontal ground-connecting-wall mixes with double-row pile, it is characterised in that：Including what is be mainly made up of stake Double-row pile, the interior horizontal ground-connecting-wall provided with lateral arrangement and strip of long side of the double-row pile.
- 2. the foundation pit supporting construction that horizontal ground-connecting-wall according to claim 1 mixes with double-row pile, it is characterised in that：It is described Horizontal ground-connecting-wall is located at the long side midpoint close to double-row pile.
- 3. the foundation pit supporting construction that horizontal ground-connecting-wall according to claim 1 mixes with double-row pile, it is characterised in that：It is described The long side of the length direction of horizontal ground-connecting-wall and the double-row pile is arranged vertically.
- 4. the foundation pit supporting construction that horizontal ground-connecting-wall according to claim 1 mixes with double-row pile, it is characterised in that：It is described The length-width ratio of horizontal ground-connecting-wall is 4 to 6.
- 5. the foundation pit supporting construction that horizontal ground-connecting-wall according to claim 1 mixes with double-row pile, it is characterised in that：It is described Horizontal ground-connecting-wall at least two width, the horizontal ground-connecting-wall concentrate continuous arrangement or scattered arranged for interval.
- A kind of 6. foundation pit supporting method that horizontal ground-connecting-wall mixes with double-row pile, it is characterised in that：By certain in double-row pile long side Individual stake replaces with the horizontal ground-connecting-wall of lateral arrangement and strip.
- 7. the foundation pit supporting method that horizontal ground-connecting-wall according to claim 6 mixes with double-row pile, it is characterised in that：By one Width or several horizontal ground-connecting-walls are arranged into close to the position at the long side midpoint of double-row pile.
- 8. the foundation pit supporting method that horizontal ground-connecting-wall according to claim 6 mixes with double-row pile, it is characterised in that：To be more The horizontal spaced apart arrangement of ground-connecting-wall.
- 9. the foundation pit supporting method that horizontal ground-connecting-wall according to claim 6 mixes with double-row pile, it is characterised in that：To be more Horizontal ground-connecting-wall concentrates continuous arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251405.2A CN107842026A (en) | 2017-12-01 | 2017-12-01 | The foundation pit supporting construction and method that a kind of horizontal ground-connecting-wall mixes with double-row pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251405.2A CN107842026A (en) | 2017-12-01 | 2017-12-01 | The foundation pit supporting construction and method that a kind of horizontal ground-connecting-wall mixes with double-row pile |
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| Publication Number | Publication Date |
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| CN107842026A true CN107842026A (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711251405.2A Pending CN107842026A (en) | 2017-12-01 | 2017-12-01 | The foundation pit supporting construction and method that a kind of horizontal ground-connecting-wall mixes with double-row pile |
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| CN (1) | CN107842026A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112861208A (en) * | 2021-01-07 | 2021-05-28 | 青岛理工大学 | Analysis method for converting row pile supporting system into underground continuous wall supporting structure |
| CN113152427A (en) * | 2021-05-07 | 2021-07-23 | 深圳大学 | Protection structure and method for adjacent underground pipeline of riprap reclamation sea area excavation project |
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| CN1563606A (en) * | 2004-04-09 | 2005-01-12 | 南京大学 | Method for supporting foundation trench for agitation piles of soil cement with concrete as the core |
| CN202989937U (en) * | 2012-12-05 | 2013-06-12 | 昆明理工大学 | Grille-type double-row pile supporting structure |
| CN103758134A (en) * | 2014-01-24 | 2014-04-30 | 中国建筑股份有限公司 | Combined double-row pile supporting system and construction method thereof |
| CN204098043U (en) * | 2014-09-22 | 2015-01-14 | 中南勘察设计院（湖北）有限责任公司 | After staying soil, excavation is in conjunction with inner support Retaining Structure with Double-row Piles |
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| CN205116181U (en) * | 2015-10-13 | 2016-03-30 | 中国建筑股份有限公司 | Closed system of going along with sb. to guard him of trellis |
| CN105970973A (en) * | 2016-06-29 | 2016-09-28 | 广州市市政工程设计研究总院 | Soft soil foundation pit double-row piles supporting structure considering soil-arch and deformation space effect |
| CN106759252A (en) * | 2017-02-27 | 2017-05-31 | 中交第三航务工程勘察设计院有限公司 | A kind of double sheet-pile wall revetment structure suitable for deep soft soil foundation |
| CN206512723U (en) * | 2017-02-27 | 2017-09-22 | 钱亮 | A kind of multiple-layer horizontal coupling beam double-row pile and underground pipe gallery monolithic construction |
| CN107288135A (en) * | 2017-07-19 | 2017-10-24 | 昆明理工大学 | A kind of inter-pile soil reinforcement means of foundation ditch Double-row Piles Support |
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2017
- 2017-12-01 CN CN201711251405.2A patent/CN107842026A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5771923A (en) * | 1980-10-22 | 1982-05-06 | Toshio Enoki | Construction work of continuous underground wall |
| CN1563606A (en) * | 2004-04-09 | 2005-01-12 | 南京大学 | Method for supporting foundation trench for agitation piles of soil cement with concrete as the core |
| CN202989937U (en) * | 2012-12-05 | 2013-06-12 | 昆明理工大学 | Grille-type double-row pile supporting structure |
| CN103758134A (en) * | 2014-01-24 | 2014-04-30 | 中国建筑股份有限公司 | Combined double-row pile supporting system and construction method thereof |
| CN204098043U (en) * | 2014-09-22 | 2015-01-14 | 中南勘察设计院（湖北）有限责任公司 | After staying soil, excavation is in conjunction with inner support Retaining Structure with Double-row Piles |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112861208A (en) * | 2021-01-07 | 2021-05-28 | 青岛理工大学 | Analysis method for converting row pile supporting system into underground continuous wall supporting structure |
| CN112861208B (en) * | 2021-01-07 | 2022-08-16 | 青岛理工大学 | Analysis method for converting row pile supporting system into underground continuous wall supporting structure |
| CN113152427A (en) * | 2021-05-07 | 2021-07-23 | 深圳大学 | Protection structure and method for adjacent underground pipeline of riprap reclamation sea area excavation project |
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Application publication date: 20180327 |