CN107142946A - Foundation pit support system - Google Patents
Foundation pit support system Download PDFInfo
- Publication number
- CN107142946A CN107142946A CN201710213816.6A CN201710213816A CN107142946A CN 107142946 A CN107142946 A CN 107142946A CN 201710213816 A CN201710213816 A CN 201710213816A CN 107142946 A CN107142946 A CN 107142946A
- Authority
- CN
- China
- Prior art keywords
- fish belly
- purlin
- type combination
- belly sill
- interlocking pile
- 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.)
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
-
- 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
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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- Engineering & Computer Science (AREA)
- Structural Engineering (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)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a kind of foundation pit support system, the inwall of the foundation ditch is provided with interlocking pile, and the interlocking pile formation closure cofferdam, wherein described first of fish belly sill tool-type combination and the second fish belly sill tool-type combination are each attached on the interlocking pile, and lattice column of the bottom provided with support first of fish belly sill tool-type combination and the second fish belly sill tool-type combination of the foundation ditch.Foundation pit support system of the present invention, the fish belly sill tool-type combination and interlocking pile form common space-load system, and not only constructing operation face is big, are conducive to controlling the deformation of foundation ditch, and are easy to earth excavation.
Description
Technical field
The present invention relates to the technical field of civil engineering, a kind of foundation pit support system is referred in particular to.
Background technology
With the utilization of continually developing of urbanization and the underground space, the construction of skyscraper, the construction of heavy civil facility,
And the exploitation of a large amount of underground spaces promotes base pit engineering fast-developing, correlation engineering technology gradually moves to maturity.Into 20
Development trends such as " big, deep, tight, near " is presented in base pit engineering since century.Current base pit engineering gradually present it is fast-growth,
The features such as distributed areas are wide, foundation ditch area is big, depth is deep, surrounding enviroment are complicated, increasing large deep foundation pit requirement of engineering
Safely, conveniently, quick and economic support technology, the technological means of base pit engineering is improved and innovated.Wherein, prestressing force
Fish belly beam type bracing members technology is successfully applied by research and development and experimental study in a series of national engineerings.The skill
Art can realize the reliable control to foundation pit deformation, and backing material is realized and reclaimed with reusing, the green of base pit engineering has been reached
Color supporting and the target of energy-saving consumption-reducing.
It is existing in foundation pit support system, such as Chinese invention patent（CN103669369A）Disclose a kind of supporting of foundation ditch
Structure and method for protecting support, set double-row pile, the double-row pile encloses to form a reinforcing area in the periphery of foundation ditch；Anchor rod component,
One end connects the double-row pile, and the other end is embedded in the ground of the foundation ditch so that the double-row pile is anchored in the foundation ditch
In ground；Soil mass consolidation, is formed and the reinforcing area.Although above-mentioned supporting construction can control foundation ditch in water using double-row pile
Square to deformation, but its construction is complicated, and the cycle is long, causes construction cost big；In addition, foundation ditch in the vertical direction is still
The problem of in the presence of deformation.
The content of the invention
Therefore, the technical problems to be solved by the invention be to overcome in the prior art foundation ditch in the vertical direction still deposit
Risk of distortion and it is great in constructing amount, cost is high the problem of can be prevented effectively from foundation pit deformation and can effectively reduce so as to providing one kind and apply
Work amount is so as to shorten the foundation pit support system of speed of application.
In order to solve the above technical problems, the foundation pit support system of the present invention, including first of fish belly sill tool-type group
Close and the second fish belly sill tool-type combination below first of fish belly sill tool-type combination, the foundation ditch it is interior
Wall is provided with interlocking pile, and interlocking pile formation closure cofferdam, wherein first of fish belly sill tool-type combination and described
Second fish belly sill tool-type combination is each attached on the interlocking pile, and the bottom of the foundation ditch is provided with described first of support
The lattice column of fish belly sill tool-type combination and the second fish belly sill tool-type combination.
In one embodiment of the invention, first of fish belly sill tool-type combination includes being arranged on the inside of collar tie beam
The first angle brace for first enclose purlin, purlin is enclosed with described first being connected, enclose with described first the first web member that purlin is connected and with it is described
The first steel strand wires that first two ends for enclosing purlin are connected with each other, and first angle brace enclosed between purlin positioned at adjacent first, the circle
Beam is located on the interlocking pile.
In one embodiment of the invention, the interlocking pile is provided with the first bracket, and described first encloses purlin installed in institute
On the support for stating the first bracket.
In one embodiment of the invention, the second fish belly sill tool-type combination includes being arranged on the interlocking pile
The second angle brace that the second of inner side, which enclose purlin, purlin is enclosed with described second is connected, enclose with described second the second web member that purlin is connected and
The second steel strand wires being connected with each other with the described second two ends for enclosing purlin, and second angle brace enclosed between purlin positioned at adjacent second,
The collar tie beam is located on the interlocking pile.
In one embodiment of the invention, the interlocking pile is provided with the second bracket, and described second encloses purlin installed in institute
On the support for stating the second bracket.
In one embodiment of the invention, described second encloses purlin and is fixed on by force transmission element on the interlocking pile.
In one embodiment of the invention, welded on the lattice column on bracket, the bracket and shelve support beam.
In one embodiment of the invention, it is additionally provided with the anchoring body being connected with the interlocking pile on the interlocking pile.
In one embodiment of the invention, the anchoring body is stiffening pile or prestress anchorage cable.
In one embodiment of the invention, the stiffening pile is located at the vicinity of first of fish belly sill tool-type combination
And the vicinity of the second fish belly sill tool-type combination.
The above-mentioned technical proposal of the present invention has advantages below compared with prior art：
Foundation pit support system of the present invention, the inwall of the foundation ditch is provided with interlocking pile, can be effective by the interlocking pile
Prevent water and soil from entering foundation ditch, and interlocking pile formation closure cofferdam, make the supporting construction rigidity of composition big, so as to be conducive to
Control the deformation of foundation pit side-wall；In addition, fish belly sill tool-type combination and interlocking pile formation common space stress system, constructing operation
Face is big, is easy to earth excavation, greatly improves the stability of foundation ditch.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, specific embodiment and combination below according to the present invention
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the schematic diagram of foundation ditch inner cross-sectional of the present invention；
Fig. 2 is the side view inside foundation ditch of the present invention.
Embodiment
As depicted in figs. 1 and 2, the present embodiment provides a kind of foundation pit support system, including first of fish belly sill tool-type group
Close 20 and the second fish belly sill tool-type combination 40 positioned at the lower section of first of fish belly sill tool-type combination 20, the base
The inwall in hole is provided with interlocking pile 11, and the formation closure of the interlocking pile 11 cofferdam, wherein first of fish belly sill tool-type group
Conjunction 20 and the second fish belly sill tool-type combination 40 are each attached on the interlocking pile 11, and the bottom of the foundation ditch is set
There is the lattice column 10 for supporting first of fish belly sill tool-type combination 20 and the second fish belly sill tool-type combination 40.
Above-mentioned is the core technology scheme of the present invention, foundation pit support system of the present invention, including first of fish belly sill work
Tool formula combination 20 and the second fish belly sill tool-type combination 40 positioned at the lower section of first of fish belly sill tool-type combination 20,
Wherein first fish belly sill tool-type combination 20 and second fish belly sill tool-type combination 40 are used to control foundation ditch horizontal direction
On deformation, the inwall of the foundation ditch is provided with interlocking pile 11, can effectively prevent water and soil from entering base by the interlocking pile 11
Hole, and the formation closure of the interlocking pile 11 cofferdam, make the supporting construction rigidity of composition big, so as to be conducive to controlling foundation pit side-wall
Deformation, it is to avoid the deformation on foundation ditch vertical direction；First of fish belly sill tool-type combination 20 and the second fish
Web grider tool-type combination 40 is each attached on the interlocking pile 11, so as to form common space-load system, is not only advantageous to
The deformation of foundation ditch is controlled, and constructing operation face is big, is easy to earth excavation；Described first provided with support of the bottom of the foundation ditch
The lattice column 10 of fish belly sill tool-type combination 20 and the second fish belly sill tool-type combination 40, is conducive to the foundation ditch
Inner supporting structure carry out vertical direction on support so that the stability of foundation ditch is increased substantially.
First of fish belly sill tool-type combination 20 includes being arranged on the first of the inner side of collar tie beam 12 and encloses purlin 21, with described the
The first web member 23 for one enclose the first connected angle brace 22 of purlin 21, purlin 21 is enclosed with described first being connected and enclose purlin 21 with described first
The first steel strand wires 24 for being connected with each other of two ends, and first angle brace 22 enclosed between purlin 21 positioned at adjacent first.It is wherein described
Collar tie beam 12 is located on the interlocking pile 11, can make the uniform force of interlocking pile 11 by the collar tie beam 12, so as to be conducive to
Ensure the rigidity and stability of supporting construction, described first encloses the inner side that purlin 21 is arranged on the collar tie beam 12；The interlocking pile 11
Upper fluting sets the first bracket 13, and described first encloses purlin 21 on the support of first bracket 13, and first support
Frame 13 encloses the center line of purlin 21 on same horizontal plane with described first, specifically, the upper surface of first bracket 13 with
Described first encloses the lower surface of purlin 21 on same horizontal plane, so that enclosing purlin 21 by described first is fixed on the interlocking pile 11
On.
Further, since the stress that the corner of foundation ditch is subject to is big, it is therefore desirable to which first angle brace 22 is arranged on into adjacent
First encloses between purlin 21, and makes first angle brace 22 enclose purlin 21 with described first to be fastenedly connected, not only play foundation ditch support
Effect, and the integral rigidity of pre-loaded support struts system can be improved；And described first encloses purlin 21 and first web member 23 is logical
Cross welding and bolt is attached, described first, which encloses purlin 21, the first web member 23 and first steel strand wires 24, is assembled into one
Fish belly shape structure encloses purlin.
Similarly, the second fish belly sill tool-type combination 40 encloses including being arranged on the second of the inner side of interlocking pile 11
Purlin, the second web member for enclosing with described second the second angle brace that purlin is connected, purlin is enclosed with described second being connected and enclosed with described second
The second steel strand wires that the two ends of purlin are connected with each other, and second angle brace enclosed between purlin positioned at adjacent second.Wherein described occlusion
Fluting sets the second bracket 14 in stake 11, and described second encloses purlin on the support of second bracket 14, and described second
Bracket 14 encloses the center line of purlin on same horizontal plane with described second, specifically, the upper surface of second bracket 14 with
Described second encloses the lower surface of purlin on same horizontal plane, is fixed on so as to enclose purlin by described second on the interlocking pile 11.
In addition, described second encloses purlin and is fixed on by force transmission element 30 on the interlocking pile 11, wherein described second encloses purlin and force transmission element 30
One end welding, the other end and the interlocking pile 11 of the force transmission element 30 weld, so that by the second fish belly sill instrument
Formula combination 40 is fixed on the interlocking pile 11, not only forms it into common space-load system, is conducive to controlling foundation ditch water
Square upward deformation, and constructing operation face is big, is easy to earth excavation.
Further, since the stress that the corner of foundation ditch is subject to is big, it is therefore desirable to which second angle brace is arranged on into adjacent the
Two enclose between purlin, and make second angle brace enclose purlin with described second to be fastenedly connected, not only play a supporting role to foundation ditch, and
The integral rigidity of pre-loaded support struts system can be improved；And described second enclose purlin and second web member by welding and bolt enter
Row connection, described second enclose that purlin, the first web member and second steel strand wires are assembled into fish belly shape structure enclose purlin.
During excavation pit, the soil pressure of bank side is more than the unfavorable factor of water pressure, in addition it is also necessary to
Inner support to the foundation ditch carries out decompression design.Specifically, it is additionally provided with and is connected with the interlocking pile 11 on the interlocking pile 11
Anchoring body.In the present embodiment, the anchoring body includes first of stiffening pile 31 and second stiffening pile 32 or prestressed anchor
Rope, wherein first of stiffening pile 31 is located at the vicinity of first of fish belly sill tool-type combination 20, the second adds
Strength stake 32 is located at the vicinity of the second fish belly sill tool-type combination 40, passes through first of stiffening pile 31 and described the
The setting of two road stiffening piles 32, effectively controls the deformation of foundation ditch in the horizontal direction.
Support beam is shelved on bracket, the bracket in addition, being welded on the lattice column 10, is supported by the support beam
First of fish belly sill tool-type combination 20 and second fish belly sill tool-type combination 40 are stated, is conducive to improving the overall steady of foundation ditch
It is qualitative.
To sum up, technical scheme of the present invention has advantages below：
1. foundation pit support system of the present invention, including first of fish belly sill tool-type combination and positioned at first of fish belly
Second fish belly sill tool-type combination below beam tool-type combination, wherein first of fish belly sill tool-type combination and second
Fish belly sill tool-type combination is used to control the deformation in foundation ditch horizontal direction, and the inwall of the foundation ditch is provided with interlocking pile, passes through institute
Stating interlocking pile can effectively prevent water and soil from entering foundation ditch, and interlocking pile formation closure cofferdam, make the supporting construction of composition
Rigidity is big, so as to be conducive to controlling the deformation of foundation pit side-wall, it is to avoid the deformation on foundation ditch vertical direction；First of fish belly
Beam tool-type combination and the second fish belly sill tool-type combination are each attached on the interlocking pile, so as to form common
Space-load system, is not only advantageous to control the deformation of foundation ditch, and constructing operation face is big, is easy to earth excavation；The foundation ditch
Bottom provided with the lattice for supporting first of fish belly sill tool-type combination and the second fish belly sill tool-type combination
Post, is conducive to carrying out the inner supporting structure of the foundation ditch support on vertical direction, so that the stability of foundation ditch is significantly
Improve.
2. foundation pit support system of the present invention, during excavation pit, the soil pressure of bank side is big
In being additionally provided with the anchoring body that is connected with the interlocking pile in the unfavorable factor of water pressure, the interlocking pile, wherein the anchoring body
Including stiffening pile or prestress anchorage cable, wherein first of stiffening pile is located at the attached of first of fish belly sill tool-type combination
Closely, specifically, first of stiffening pile is made to be fixed on the collar tie beam 12；The second stiffening pile is located at the second
The vicinity of fish belly sill tool-type combination, by the setting of first of stiffening pile and the second stiffening pile, effectively control
The deformation of foundation ditch is in the horizontal direction made.
Obviously, above-described embodiment is only intended to clearly illustrate example, not to the restriction of embodiment.For
For those of ordinary skill in the art, other multi-form changes can also be made on the basis of the above description or are become
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change or change thus extended out
Among moving still in the protection domain of the invention.
Claims (10)
1. a kind of foundation pit support system, including first of fish belly sill tool-type combination and positioned at first of fish belly sill instrument
Second fish belly sill tool-type combination below formula combination, it is characterised in that：The inwall of the foundation ditch is provided with interlocking pile, and described
Interlocking pile formation closure cofferdam, wherein first of fish belly sill tool-type combination and the second fish belly sill tool-type group
Conjunction is each attached on the interlocking pile, and the foundation ditch bottom provided with support first of fish belly sill tool-type combination and
The lattice column of the second fish belly sill tool-type combination.
2. foundation pit support system according to claim 1, it is characterised in that：First of fish belly sill tool-type combination includes
It is arranged on and first on the inside of collar tie beam encloses purlin, the first angle brace for purlin is enclosed with described first being connected, purlin is connected enclosed with described first
One web member and the first steel strand wires being connected with each other with the described first two ends for enclosing purlin, and first angle brace is located at adjacent first
Enclose between purlin, the collar tie beam is located on the interlocking pile.
3. foundation pit support system according to claim 2, it is characterised in that：The interlocking pile is provided with the first bracket, described
First encloses purlin on the support of first bracket.
4. foundation pit support system according to claim 1, it is characterised in that：The second fish belly sill tool-type combination includes
It is arranged on and second on the inside of the interlocking pile encloses purlin, the second angle brace for purlin is enclosed with described second being connected, with described second encloses purlin phase
The second web member even and the second steel strand wires being connected with each other with the described second two ends for enclosing purlin, and second angle brace is located at phase
Neighbour second is enclosed between purlin, and the collar tie beam is located on the interlocking pile.
5. foundation pit support system according to claim 4, it is characterised in that：The interlocking pile is provided with the second bracket, described
Second encloses purlin on the support of second bracket.
6. the foundation pit support system according to claim 4 or 5, it is characterised in that：Described second encloses purlin is fixed by force transmission element
On the interlocking pile.
7. foundation pit support system according to claim 1, it is characterised in that：Bracket, the bracket are welded on the lattice column
On shelve support beam.
8. foundation pit support system according to claim 1, it is characterised in that：It is additionally provided with the interlocking pile and the interlocking pile
Connected anchoring body.
9. foundation pit support system according to claim 8, it is characterised in that：The anchoring body is stiffening pile or prestressed anchor
Rope.
10. foundation pit support system according to claim 9, it is characterised in that：The stiffening pile is located at first of fish belly
The vicinity of beam tool-type combination and the vicinity of the second fish belly sill tool-type combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213816.6A CN107142946A (en) | 2017-04-01 | 2017-04-01 | Foundation pit support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213816.6A CN107142946A (en) | 2017-04-01 | 2017-04-01 | Foundation pit support system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107142946A true CN107142946A (en) | 2017-09-08 |
Family
ID=59773505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710213816.6A Pending CN107142946A (en) | 2017-04-01 | 2017-04-01 | Foundation pit support system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107142946A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612113A (en) * | 2018-06-01 | 2018-10-02 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of foundation pit arch pre-loaded support struts structure and support system |
-
2017
- 2017-04-01 CN CN201710213816.6A patent/CN107142946A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 杨士珏等: "深基坑预应力鱼腹梁工具式组合内支撑施工及经济效益分析", 《浙江建筑》 * |
| 郭亮等: "基于位移控制的装配式预应力鱼腹梁深基坑应用研究", 《工程地质学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612113A (en) * | 2018-06-01 | 2018-10-02 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of foundation pit arch pre-loaded support struts structure and support system |
| CN108612113B (en) * | 2018-06-01 | 2020-03-13 | 中铁二院昆明勘察设计研究院有限责任公司 | Foundation pit arch prestress supporting structure and supporting system |
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| PB01 | Publication | ||
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Application publication date: 20170908 |