CN105908756A - Variable-stiffness foundation pit supporting structure - Google Patents
Variable-stiffness foundation pit supporting structure Download PDFInfo
- Publication number
- CN105908756A CN105908756A CN201610377630.XA CN201610377630A CN105908756A CN 105908756 A CN105908756 A CN 105908756A CN 201610377630 A CN201610377630 A CN 201610377630A CN 105908756 A CN105908756 A CN 105908756A
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- CN
- China
- Prior art keywords
- plastic plate
- foundation pit
- plate
- pit supporting
- plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
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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)
Abstract
The invention discloses a variable-stiffness foundation pit supporting structure. The variable-stiffness foundation pit supporting structure comprises a first plastic plate and at least two second plastic plates. The two ends of the first plastic plate are connected with one corresponding ends of the second plastic plates correspondingly to form downwards break angles, the other ends of the second plastic plates connected with the first plastic plate and the rest of the second plastic plates are connected with one another, and the first plastic plate and the second plastic plates are connected for forming the inverted L-shaped structure which is used for being placed in a foundation pit. The first plastic plate and the second plastic plates are all provided with hollow structure bodies for buffering. Concrete is poured in the hollow structure bodies. The second plastic plates in the vertical direction of the inverted L-shaped structure are inserted into the bottom surface of the foundation pit along the wall surface of the foundation pit. The variable-stiffness foundation pit supporting structure has the main beneficial effects that the middles of the plastic plates are hollow, so that the pressure of the foundation pit on an envelop plate is effectively resisted, and a good anti-toppling effect is achieved; the plates are connected in a plug pin mode, and the structure is simple; by conducting concrete pouring, the pressure transmitted from the foundation pit can be effectively resisted, the stiffness is also changed along with the change of the pressure, and the very good anti-toppling effect is achieved.
Description
Technical field
The present invention relates to the foundation pit supporting construction of a kind of variation rigidity.
Background technology
Foundation pit supporting project is temporary project, the safety stock of design relatively can with less, but
Relevant with provincialism again.Its feature of zones of different geological conditions also differs.Pattern foundation pit supporting structure is again
For ensureing Underground Construction and the safety of foundation ditch surrounding enviroment, to foundation pit side-wall and surrounding enviroment
A gear, reinforcing and the protective measure used.Common support form have campshed, diaphram wall,
Steel sheet pile, soil nail wall, cement retaining wall, inverse make arch wall, composite construction etc..
The Chinese patent of Publication No. CN203891032U discloses a kind of rotary churning pile and miniature steel
The combinative structure of pile tube.This new supporting structure, including corresponding with upper soil horizon at least one
Arrange rotary churning pile and be formed at the miniature steel pipe pile within rotary churning pile, the cylinder pile body of adjacent rotary churning pile
Overlap joint is integrated, and the bottom of miniature steel pipe pile passes rotary churning pile and embeds the rock of below base plane
In layer, the top of each miniature steel pipe pile is connected by a Guan Liang.Although this combinative structure thickness is big,
Rigidity is big, and the ability of resistance to deformation is strong, but its cost is higher.
The Chinese patent application of Publication No. CN202577318U discloses a kind of pattern foundation pit supporting structure system
System, including: water draining-cob wall nail supporting construction.Described water draining-cob wall nail supporting construction
Including: water draining and soil nail wall.Told foundation pit support system is propped up by water draining one soil nail wall
The protection structure pile body by water draining, controls soil deformation in early days and improves base in digging process
Hole stability.Although by the pile body of water draining have deeper insertion depth and higher rigidity and
Intensity, strengthens boundary constraint, but its operation is the most complicated, higher to construction requirement, material
Crooking ability relatively low.
Summary of the invention
The problem existed for current pattern foundation pit supporting structure, the one that provides of the present invention can not only
Improving rigidity, rigidity also can change, simple in construction along with the change of foundation ditch load, and cost is low,
It is easy to the foundation pit supporting construction of the variation rigidity of processing and construction and installation.
The foundation pit supporting construction of variation rigidity of the present invention, it is characterised in that: include that first moulds
Flitch and at least two piece of second plastic plate, the two ends of the first described plastic plate are respectively with corresponding
Second plastic plate one end connects the knuckle that formation is downward, and the other end of the second plastic plate is with remaining
Second plastic plate is connected with each other, and described the first plastic plate, the second plastic plate connect formation and be used for
The inverted L shape structure being placed in foundation ditch；The first described plastic plate and the second described plastic plate
It is equipped with the hollow structure for buffering；Casting concrete in described hollow structure；Inverted L
Second plastic plate of the vertical direction of type structure inserts the bottom surface of foundation ditch along foundation ditch wall portions.
What the first described plastic plate was connected with the second described plastic plate or two second moulds
Inserting mode is used to connect between flitch, one of them end face of the first plastic plate and the other end
Bottom surface is provided with the first groove, and the wherein end face of the second described plastic plate is provided with for snapping in
Projection in groove, other end are provided with for connecting protruding second recessed of adjacent second plastic plate
Groove.
The knuckle that the first described plastic plate is formed with the second described plastic plate is 90 °.
Described hollow structure is axial bar groove.
During use, by the two ends of the first plastic plate respectively with the protruding end of corresponding second plastic plate
Grafting forms vertical beveled structure, and the other end of the second plastic plate and the second other plastics
The protruding grafting of plate, now, the number of the second plastic plate is entered according to the degree of depth and the size of foundation ditch
Row sum-equal matrix, the beveled structure of formation and the bottom surface of foundation ditch and sidewall laminating, play foundation ditch and support
Effect.Between first plastic plate of the present invention and the second plastic plate, the second plastic plate with
It is not limited only to inserting mode between second plastic plate, is detachably connected with mode, and grafting
The structure at place is also not limited to groove and coordinates with protruding.
Beneficial effects of the present invention is mainly manifested in: 1) by hollowing out in the middle of plastic plate, have
Imitate keeps out the foundation ditch pressure to wall interior panel, preferably make use of the transmutability of rigidity, along with lotus
The change carried, rigidity changes the most therewith, has good overturning-preventing effect；Between plate and plate
Being the connection of a kind of bolt-type, simple in construction is a lot, but effect is suitable；2) by mixing
Solidifying soil pours, it is possible to effectively keep out the pressure that foundation ditch transmits, and along with the change of pressure, rigidity is also
Change therewith, there is good overturning-preventing effect, be more suitable for for foundation pit supporting project.
Accompanying drawing explanation
Fig. 1 is the top view of the present invention.
Fig. 2 is the side view of the present invention.
Fig. 3 is the scheme of installation of the present invention.
Detailed description of the invention
Further illustrate the present invention below in conjunction with the accompanying drawings
Referring to the drawings:
The foundation pit supporting construction of embodiment 1 variation rigidity of the present invention, including the first plastic plate
1 and at least two piece of second plastic plate 2, the two ends of the first described plastic plate 1 respectively with accordingly
Second plastic plate 2 one end connect and form downward knuckle, the other end of the second plastic plate 2 with
Remaining second plastic plate 2 is connected with each other, first described plastic plate the 1, second plastic plate 2
Connect the inverted L shape structure formed for being placed in foundation ditch；The first described plastic plate 1 and institute
The second plastic plate 2 stated is equipped with the hollow structure 4 for buffering；Described hollow structure 4
Middle casting concrete；Second plastic plate 2 of the vertical direction of inverted L shape structure is along foundation ditch 3 wall
The bottom surface of partial insertion foundation ditch 3.
The first described plastic plate 1 be connected with the second described plastic plate 2 or two
Between two plastic plates 2 use inserting mode connect, one of them end face of the first plastic plate 1 with
And other end bottom surface is provided with the first groove 11, wherein one end of the second described plastic plate 2
Projection 21, other end that face is provided with in snapping in groove are provided with for connecting adjacent second
The second groove 22 that plastic plate is protruding.
The knuckle that the first described plastic plate 1 and the second described plastic plate 2 are formed is 90 °.
Described hollow structure 4 is axial bar groove.
During use, by the two ends of the first plastic plate respectively with the protruding end of corresponding second plastic plate
Grafting forms vertical beveled structure, and the other end of the second plastic plate and the second other plastics
The protruding grafting of plate, now, the number of the second plastic plate is entered according to the degree of depth and the size of foundation ditch
Row sum-equal matrix, the beveled structure of formation and the bottom surface of foundation ditch and sidewall laminating, play foundation ditch and support
Effect.The plastic plate being connected is provided with the attachment structure for plate Yu plate, and attachment structure is permissible
Employing various structures realizes.The connected mode of the present embodiment is to use the design of bolt-type, the left side
Being a projection, the right is a groove.So make the connection between plate and plate more tight,
Add its globality.The present embodiment is a kind of foundation pit supporting system, by carrying out coagulation
Soil pours, it is possible to effectively keep out the pressure that foundation ditch transmits, along with the change of pressure, rigidity also with
And change, there is good overturning-preventing effect, be more suitable for for foundation pit supporting project.
Content described in this specification embodiment is only the row of the way of realization to inventive concept
Lifting, protection scope of the present invention is not construed as being only limitted to the concrete shape that embodiment is stated
Formula, protection scope of the present invention also includes that those skilled in the art are caned according to present inventive concept
The equivalent technologies means expected.
Claims (4)
1. the foundation pit supporting construction of variation rigidity, it is characterised in that: include the first plastic plate and extremely
Few two piece of second plastic plate, the two ends of the first described plastic plate respectively with corresponding second plastics
Plate one end connects the knuckle that formation is downward, the other end of the second plastic plate and remaining second plastics
Plate is connected with each other, and described the first plastic plate, the second plastic plate connect formation and be used for being placed in foundation ditch
Interior inverted L shape structure；The first described plastic plate and the second described plastic plate are equipped with use
Hollow structure in buffering；Casting concrete in described hollow structure；Erecting of inverted L shape structure
Nogata to the second plastic plate along foundation ditch wall portions insert foundation ditch bottom surface.
2. the foundation pit supporting construction of variation rigidity as claimed in claim 1, it is characterised in that:
The second plastic plate that the first described plastic plate is connected with the second described plastic plate or two
Between use inserting mode connect, one of them end face of the first plastic plate and other end bottom surface
Being provided with the first groove, the wherein end face of the second described plastic plate is provided with for snapping in groove
Interior projection, other end are provided with for connecting the second groove that adjacent second plastic plate is protruding.
The foundation pit supporting construction of a kind of variation rigidity the most as claimed in claim 2, its feature exists
In: the knuckle that the first described plastic plate is formed with the second described plastic plate is 90 °.
4. the foundation pit supporting construction of variation rigidity as claimed in claim 1, it is characterised in that:
Described hollow structure is axial bar groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610377630.XA CN105908756A (en) | 2016-05-31 | 2016-05-31 | Variable-stiffness foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610377630.XA CN105908756A (en) | 2016-05-31 | 2016-05-31 | Variable-stiffness foundation pit supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105908756A true CN105908756A (en) | 2016-08-31 |
Family
ID=56742810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610377630.XA Pending CN105908756A (en) | 2016-05-31 | 2016-05-31 | Variable-stiffness foundation pit supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105908756A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677205A (en) * | 2016-11-11 | 2017-05-17 | 重庆大学 | Fabricated special-shaped steel pipe pile combined retaining wall |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62174414A (en) * | 1985-08-09 | 1987-07-31 | Oyo Kikaku:Kk | Cement plate having water-permeable function |
| JPH1025735A (en) * | 1996-07-11 | 1998-01-27 | Yoshihiro Kizu | Steel material for sheathing |
| CN102041804A (en) * | 2010-12-02 | 2011-05-04 | 李布尔 | Combined hollow plastic sheet pile wall |
| CN202543900U (en) * | 2012-03-16 | 2012-11-21 | 上海中技桩业股份有限公司 | Concrete sheet pile with waterproof joints |
-
2016
- 2016-05-31 CN CN201610377630.XA patent/CN105908756A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62174414A (en) * | 1985-08-09 | 1987-07-31 | Oyo Kikaku:Kk | Cement plate having water-permeable function |
| JPH1025735A (en) * | 1996-07-11 | 1998-01-27 | Yoshihiro Kizu | Steel material for sheathing |
| CN102041804A (en) * | 2010-12-02 | 2011-05-04 | 李布尔 | Combined hollow plastic sheet pile wall |
| CN202543900U (en) * | 2012-03-16 | 2012-11-21 | 上海中技桩业股份有限公司 | Concrete sheet pile with waterproof joints |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677205A (en) * | 2016-11-11 | 2017-05-17 | 重庆大学 | Fabricated special-shaped steel pipe pile combined retaining wall |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160831 |