CN208136920U - A kind of triangle prestressing force foundation pit supporting pile and its connection structure - Google Patents
A kind of triangle prestressing force foundation pit supporting pile and its connection structure Download PDFInfo
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- CN208136920U CN208136920U CN201820544039.3U CN201820544039U CN208136920U CN 208136920 U CN208136920 U CN 208136920U CN 201820544039 U CN201820544039 U CN 201820544039U CN 208136920 U CN208136920 U CN 208136920U
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Abstract
The utility model discloses a kind of triangle prestressing force foundation pit supporting pile and its connection structures, support pile includes pile body and arrangement of reinforcement, pile body is arranged along foundation pit crater wall, pile body is triangular prism structure, the side wall of pile body meets pitted surface including two and one is met native face, it is parallel with foundation pit crater wall to meet native face, arrangement of reinforcement edge meets pitted surface and meets native face interval arrangement；Connection structure includes inner sleeve and outer sleeve etc..The utility model improves the askew and shear resistance that resists of pile body, shortens construction period, reduces cost and applied widely.
Description
Technical field
The utility model belongs to support pile technical field, and in particular to a kind of triangle prestressing force foundation pit supporting pile and its company
Binding structure.
Background technique
Support pile is generally used for pattern foundation pit supporting structure, slope retaining and landslide control, bears horizontal earth pressure or landslide pushes away
Power, in the prior art, there is a problem in that：
（1）, conventionally employed RC Circular stake and the contact surface direction around foundation pit it is different, circle stake is by foundation pit
When extruding, play support action is only the single point on a direction, and each direction of reinforcing bar in RC Circular stake is only
There is a stress, be easy to cause unbalance stress, askew and anti-shear ability is resisted to reduce；
（2）, the material construction of RC Circular stake is high, construction is slow；
（3）, form of construction work：Conventional on-site casting, low efficiency.
Utility model content
The purpose of the utility model is to provide a kind of triangle prestressing force foundation pit supporting pile and its connection structures, improve stake
Body resists askew and shear resistance, shortens construction period, reduces cost and applied widely.
The utility model provides the following technical solution：A kind of triangle prestressing force foundation pit supporting pile, including concrete
Pile body made of pouring is equipped with arrangement of reinforcement along short transverse in pile body, and pile body is arranged along foundation pit crater wall, and pile body is triangular prism structure,
The side wall of pile body includes two and meets pitted surface and one is met native face, described to meet that native face is parallel with foundation pit crater wall, and pitted surface is met on arrangement of reinforcement edge
It is arranged with native face interval is met.
It is as above-mentioned technical proposal to further describe：
The pile body at least has a longitudinal hollow structure, and wall is equipped with concentric with it three of multiple groups in the pile body
Angular stirrup is upwardly formed muscle cage the week that arrangement of reinforcement interval is fixed in stirrup, is equipped with end plate on the pile body upper and lower end face, end
Plate is equipped with the perforation adaptable with the cross section of arrangement of reinforcement.
It is as above-mentioned technical proposal to further describe：
The arrangement of reinforcement includes nonmetallic presstressed reinforcing steel and reinforcing bar.
It is as above-mentioned technical proposal to further describe：
The nonmetallic presstressed reinforcing steel is fibre-reinforced plastics muscle and/or carbon fibre bar.
It is as above-mentioned technical proposal to further describe：
The nonmetallic presstressed reinforcing steel is met between pitted surface along native face interval arrangement, the reinforcing bar and nonmetallic presstressed reinforcing steel edge is met
Every being alternately arranged.
It is as above-mentioned technical proposal to further describe：
The reinforcing bar and nonmetallic presstressed reinforcing steel edge are met native face interval and are alternately arranged, and the reinforcing bar is arranged along pitted surface interval is met
Column.
The utility model also provides a kind of connection structure of triangle prestressing force foundation pit supporting pile, including described at least two
Triangle prestressing force foundation pit supporting pile, and the inner sleeve being connected between triangle prestressing force foundation pit supporting pile, the triangle
Shape prestressing force foundation pit supporting pile is vertically connected with integrally by the cooperation of arrangement of reinforcement and inner sleeve, and inner sleeve is hollow internal screw thread knot
Structure, the arrangement of reinforcement in triangle prestressing force foundation pit supporting pile being located above is stretched out from pile body lower end surface to be connected with inner sleeve screw thread
It connects, the arrangement of reinforcement in underlying triangle prestressing force foundation pit supporting pile is stretched out from pile body upper surface to be connected with inner sleeve screw thread
It connects, glue is filled between arrangement of reinforcement and inner sleeve.
It is as above-mentioned technical proposal to further describe：
The junction of triangle prestressing force foundation pit supporting pile described in any two is also arranged with outer sleeve, the height of outer sleeve
Greater than the clearance distance between pile body, the cross section of outer sleeve and the cross section of pile body are adapted, and outer sleeve side wall is uniformly provided with
First bolt hole, pile body side wall is equipped with the second bolt hole corresponding with the first bolt hole close to end, and passes through bolt and stake
Body is fixedly connected, and is also socketed with anchor ear on the outside of outer sleeve.
It is as above-mentioned technical proposal to further describe：
The junction of triangle prestressing force foundation pit supporting pile described in any two is also arranged with outer sleeve, outer sleeve it is transversal
Face and the cross section of pile body are adapted, and outer sleeve is made of three coaming plate groups, and the wing is extended at both ends to the coaming plate in the width direction
Plate, the wing plate are equipped with connecting hole, are joined end to end between the coaming plate and coaming plate by connecting hole and cooperatively forming for bolt
Structure.
The beneficial effects of the utility model：The askew and shear resistance that resists of pile body is improved, construction period is shortened, reduces cost
And it is applied widely, it is specific as follows：
（1）, the utility model support pile can shorten the construction period of foundation pit：Entire pile body is prefabricated pile, in work
Factory completes the process transport can shorten construction period, improve efficiency to scene relative in situ concrete pile；In work progress,
Pile body is squeezed into the stake position of soil layer with sinking apparatus, pile body is arranged to form continuous braced wall in foundation pit along foundation pit crater wall
Body；
（2）, the utility model support pile have and excellent resist askew and shear behavior：Cross section is triangle, and has one
Entire side wall is as meeting pitted surface, when extruding of the pile body by soil layer power, play support action be entire one side rather than only
For the single point on a direction；Along more arrangement of reinforcement stress for meeting native face interval arrangement, it is askew to improve resisting for pile body for uniform force
And shear resistance, reduce engineering accident；Relative to circular in cross-section, rectangular or I-shaped support pile, reduce as far as possible
The dosage of concrete, reduces costs, and structure is more stable and resistance to compression and resists the askew performance more preferable；
（3）, the utility model support pile have lower cost：Being arranged has hollow shape body, and hollow structure can be with
For one or more, reduce the dosage of concrete, in addition, the stirrup of setting triangular structure, stirrup are combined with arrangement of reinforcement
Muscle cage is formed, the muscle basket structure is firm, ensure that structural strength；
（4）, the utility model support pile bending resistance and shear behavior are improved using hybrid reinforcement auxiliary：Arrangement of reinforcement includes non-gold
Belong to presstressed reinforcing steel and reinforcing bar, nonmetallic presstressed reinforcing steel preferably uses fibre-reinforced plastics muscle and/or carbon fibre bar, it is light and
With good corrosion resistance, resistance to acid and alkali and anti-seismic performance, allow the support pile of the utility model in a variety of soil layer rings
It is used in border；Meanwhile using preferred distribution mode, auxiliary enhancing bending resistance and shear behavior；
（5）, the utility model support pile connection structure, two pile bodies can be linked into an integrated entity：When in support engineering
It when foundation pit is deeper, is vertically connected in single stake position using more support piles, needs to be vertically connected with by foundation depth selection
Pile body, it is this connection equally also be preformed patterns, shorten construction period；In work progress, first by upper and lower arrangement of reinforcement and inner sleeve
Cylinder is threadedly coupled, but is not offseted mutually, and inner sleeve links together upper and lower two pile bodies, then encapsulating, continues to revolve after encapsulating 10s
Turn the arrangement of reinforcement that inner sleeve tightens upper and lower pile body, until upper and lower arrangement of reinforcement offsets and can not continue to be screwed into, can achieve higher than muscle body itself
1.2 times of tensile strength after the installation for completing inner sleeve, outer sleeve are socketed between two pile bodies up and down, so that outer sleeve
It is contacted with upper and lower two pile bodies, outer sleeve is fixedly connected, the mechanical property of junction is reinforced.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings：
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the schematic diagram of the utility model cross section；
Fig. 3 is the structural schematic diagram that pile body connects in the utility model embodiment 1；
Fig. 4 is the Longitudinal cross section schematic that pile body connects in Fig. 3；
Fig. 5 is the cross-sectional view that pile body connects in the utility model embodiment 2；
In figure label for：1, pile body；11, pitted surface is met；12, native face is met；13, longitudinal hollow structure；2, arrangement of reinforcement；21, non-gold
Belong to presstressed reinforcing steel；22, reinforcing bar；3, foundation pit crater wall；4, stirrup；5, end plate；6, inner sleeve；7, outer sleeve；74, coaming plate；75, the wing
Plate.
Specific embodiment
Now in conjunction with Figure of description, the design feature of the utility model is described in detail.
Embodiment 1
Referring to Fig. 1 and Fig. 2, a kind of triangle prestressing force foundation pit supporting pile, the arrangement of reinforcement including pile body 1 and in pile body 1,
Pile body 1 forms for concreting, and the axial direction of arrangement of reinforcement 2 is parallel with the axial direction of pile body 1；Pile body 1 is triangular prism structure, pile body 1
Side wall include two and meet pitted surface 11 and one is met native face 12, meet that native face 12 is parallel with foundation pit crater wall, and pitted surface 11 is met on arrangement of reinforcement edge
It is alternatively arranged with native face 12 is met.
The utility model is prefabricated pile, and completing transport in factory process can contract to scene relative in situ concrete pile
Short construction period, improves efficiency；In work progress, pile body 1 is squeezed into the stake position of soil layer with sinking apparatus, pile body 1 is in foundation pit
It is middle to form continuous supporting wall along the setting of foundation pit crater wall 3.
The cross section of pile body 1 is triangle and to meet native face 12 parallel with foundation pit crater wall 3, i.e., pile body 1 is triangular prism structure
And one side wall fits with foundation pit crater wall 3, so that it is whole for playing support action when extruding of the pile body 1 by soil layer power
A one side rather than the single point on an only direction, meanwhile, along meet the spaced more arrangements of reinforcement 2 in edge in native face 12 by
Power, uniform force improve the askew and anti-shear ability that resists of pile body 1, reduce engineering accident.In addition, relative to cross section in circle
Shape, rectangular or I-shaped support pile, the structure of the utility model is more stable and resistance to compression and resists askew performance more preferable, is improving
Under the premise of supporting performance, the dosage of concrete is reduced as far as possible, is reduced costs.
Referring to fig. 2, furtherly, pile body 1 at least has a longitudinal hollow structure 13, and wall is equipped with more in pile body 1
The stirrup 4 of group triangle concentric with it, arrangement of reinforcement 2 be spaced be fixed in stirrup 4 be upwardly formed muscle cage, 1 upper and lower end face of pile body week
On be equipped with end plate 5, end plate 5 is equipped with the perforation adaptable with the cross section of arrangement of reinforcement 2.
Being arranged has hollow pile body 1, while 4 Composite Layout 2 of stirrup that triangular structure is arranged forms muscle cage, the muscle cage
Stabilized structure can ensure that structural strength on the basis of being further reduced concrete amount.
Referring to fig. 2, furtherly, arrangement of reinforcement 2 includes nonmetallic presstressed reinforcing steel 21 and reinforcing bar 22, and nonmetallic presstressed reinforcing steel 21 is
Fibre-reinforced plastics muscle and/or carbon fibre bar, nonmetallic presstressed reinforcing steel 21 is light and has good corrosion resistance, acidproof
Alkalinity and anti-seismic performance, use the support pile of the utility model in a variety of soil layer environment.The distribution mode of arrangement of reinforcement 2
Specially：Nonmetallic presstressed reinforcing steel is met native face 12 along 31 and is alternatively arranged, and reinforcing bar 2 and nonmetallic presstressed reinforcing steel 21 are along meeting between pitted surface 11
Every being alternately arranged.The arrangement of reinforcement 2 near native face 12 is met for enhancing bending resistance and shear behavior.
A kind of connection structure of triangle prestressing force foundation pit supporting pile is also provided referring to Fig. 3 and Fig. 4, in the present embodiment, is wrapped
At least two triangle prestressing force foundation pit supporting piles are included, and are connected to interior between triangle prestressing force foundation pit supporting pile
Sleeve 6, triangle prestressing force foundation pit supporting pile are vertically connected with integrally by the cooperation of arrangement of reinforcement 2 and inner sleeve 6, and inner sleeve 6 is
Hollow internal thread structure, the arrangement of reinforcement 2 in triangle prestressing force foundation pit supporting pile being located above stretched out from 1 lower end surface of pile body with
Inner sleeve 6 is threadedly coupled, and the arrangement of reinforcement 2 in underlying triangle prestressing force foundation pit supporting pile is stretched out from 1 upper surface of pile body
It is threadedly coupled with inner sleeve 6, glue is filled between arrangement of reinforcement 2 and inner sleeve 6.
If foundation pit is deeper in support engineering, the support pile that more basic utility models can be used in single stake position is connected up and down
It connects, is similarly preformed patterns, the pile body for needing to be vertically connected with by foundation depth selection passes through the connection structure of the utility model
Obtain corresponding connection pile body.Two connecting pins of inner sleeve 6 are threadedly coupled with the arrangement of reinforcement of upper and lower pile body 1, thus by upper and lower two
A pile body 1 links together, in addition, two arrangements of reinforcement up and down being connected in the same inner sleeve 6 can be different materials, i.e.,
It can be nonmetallic presstressed reinforcing steel and/or reinforcing bar；Glue in this implementation is preferably epoxide resin type glue, after threaded connection again
Encapsulating is carried out, so that connection is even closer.In work progress, first upper and lower arrangement of reinforcement 2 is threadedly coupled with inner sleeve 6, but mutually not
It offsets, then encapsulating, continues rotation inner sleeve after encapsulating 10s and continue to tighten the arrangement of reinforcement of upper and lower pile body 1, until upper and lower 2 phase of arrangement of reinforcement
To that can not continue to be screwed into, it can achieve 1.2 times higher than muscle body tensile strength itself.
In addition, can also be preferably in the present embodiment：The spacing formed after upper and lower two pile bodies 1 connection is equal to inner sleeve 6
Highly, inner sleeve 6 is allowed to resist pile body 1 up and down.
Referring to fig. 4, furtherly, the junction of triangle prestressing force foundation pit supporting pile described in any two is also arranged with outer
Sleeve 7, the height of outer sleeve 7 are greater than the clearance distance between pile body 1, and the cross section of outer sleeve 7 is mutually fitted with the cross section of pile body 1
It answers, 7 side wall of outer sleeve is uniformly provided with the first bolt hole, and 1 side wall of pile body is equipped with corresponding with the first bolt hole the close to end
Two bolts hole, and be fixedly connected by bolt with pile body 1,7 outside of outer sleeve is also socketed with anchor ear（It is not shown in the figure）, embrace
Hoop 73 is located at the outside of top pile body and lower section pile body.
When construction, after the installation for completing inner sleeve 6, outer sleeve 7 is socketed between two pile bodies 1 up and down, so that housing
Cylinder is contacted with upper and lower two pile bodies 1, and is screwed into corresponding first bolt hole and the second bolt hole by bolt, so that housing
Cylinder 1 is fixedly connected, and in this manner, can reinforce the mechanical property of junction.
Embodiment 2
Referring to Fig. 5, the present embodiment difference from example 1 is that：（1）, arrangement of reinforcement distribution；（2）, outer sleeve knot
Structure.
The distribution of arrangement of reinforcement 2 is specially：Reinforcing bar 22 and nonmetallic presstressed reinforcing steel 21 alternate arrangement, reinforcing bar along native face 12 is met
It meets pitted surface 11 and is alternatively arranged in 22 edges.
When the side length of pile body 1 is 550 ~ 650mm, it is preferred to use the nonmetallic presstressed reinforcing steel 21 of 7 ~ 9 reinforcing bars 22 and 7 ~ 9 piece
Arrangement is alternated along the edge for meeting native face 12,9 ~ 11 reinforcing bars 22 are alternatively arranged along the edge for meeting pitted surface 11, nonmetallic pre- to answer
The diameter of power muscle 21 is 18 ~ 21mm, and the diameter of reinforcing bar 22 is 9 ~ 11mm.
The support pile of the utility model can shorten the construction period 40 ~ 50 days applied in the foundation pit of 300m*300m, save mixed
Solidifying 12000 cubes of dosage of soil in the identical situation of arrangement of reinforcement dosage, can save arrangement of reinforcement expense about 400,000 relative to full reinforcement constitution
Member.
The structure of outer sleeve 7 is specially：The cross section of outer sleeve 7 and the cross section of pile body 1 are adapted, and outer sleeve 7 is by three
74 groups of compositions of a coaming plate, wing plate 75 is extended at both ends to coaming plate 74 in the width direction, and wing plate 75 is equipped with connecting hole, coaming plate 74 and encloses
The structure that joins end to end is cooperatively formed by connecting hole and bolt between plate 74.
Both using such structure, so that outer sleeve 7 is assembly type, can be directly disposed around from upper and lower 1 side of pile body
Junction, easy for construction, sound construction.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in practical
Within novel protection scope.
Claims (8)
1. a kind of triangle prestressing force foundation pit supporting pile, including pile body made of concreting, set in pile body along short transverse
There is arrangement of reinforcement, pile body is arranged along foundation pit crater wall, which is characterized in that pile body is triangular prism structure, and the side wall of pile body includes two and meets hole
Face and one meet native face, and described to meet native face parallel with foundation pit crater wall, and arrangement of reinforcement is along meeting pitted surface and meet native face interval arrangement；The stake
Body at least has a longitudinal hollow structure, and wall is equipped with the stirrup of multiple groups triangle concentric with it in the pile body, matches
It is upwardly formed muscle cage the week that muscle interval is fixed in stirrup, end plate is equipped on the pile body upper and lower end face, end plate is equipped with and matches
The adaptable perforation in the cross section of muscle.
2. triangle prestressing force foundation pit supporting pile according to claim 1, it is characterised in that：The arrangement of reinforcement includes nonmetallic
Presstressed reinforcing steel and reinforcing bar.
3. triangle prestressing force foundation pit supporting pile according to claim 2, it is characterised in that：The nonmetallic presstressed reinforcing steel
For fibre-reinforced plastics muscle and/or carbon fibre bar.
4. triangle prestressing force foundation pit supporting pile according to claim 3, it is characterised in that：The nonmetallic presstressed reinforcing steel
Along native face interval arrangement is met, the reinforcing bar and nonmetallic presstressed reinforcing steel edge meet pitted surface and alternate arrangement.
5. triangle prestressing force foundation pit supporting pile according to claim 3, it is characterised in that：The reinforcing bar and nonmetallic pre-
Stress rib edge is met native face interval and is alternately arranged, and the reinforcing bar edge is met pitted surface and is alternatively arranged.
6. a kind of connection structure of triangle prestressing force foundation pit supporting pile as claimed in any one of claims 1 to 5, feature exist
In：Including at least two triangle prestressing force foundation pit supporting piles, and be connected to triangle prestressing force foundation pit supporting pile it
Between inner sleeve, the triangle prestressing force foundation pit supporting pile is vertically connected with integrally by the cooperation of arrangement of reinforcement and inner sleeve, interior
Sleeve is hollow internal thread structure, and the arrangement of reinforcement in triangle prestressing force foundation pit supporting pile being located above is stretched from pile body lower end surface
It is threadedly coupled out with inner sleeve, the arrangement of reinforcement in underlying triangle prestressing force foundation pit supporting pile is stretched out from pile body upper surface
It is threadedly coupled with inner sleeve, glue is filled between arrangement of reinforcement and inner sleeve.
7. the connection structure of triangle prestressing force foundation pit supporting pile according to claim 6, it is characterised in that：Any two
The junction of the triangle prestressing force foundation pit supporting pile is also arranged with outer sleeve, between the height of outer sleeve is greater than between pile body
Stand-off distance is from the cross section of outer sleeve and the cross section of pile body are adapted, and outer sleeve side wall is uniformly provided with the first bolt hole, pile body side
Wall is equipped with the second bolt hole corresponding with the first bolt hole close to end, and is fixedly connected by bolt and pile body, outside
Anchor ear is also socketed on the outside of sleeve.
8. the connection structure of triangle prestressing force foundation pit supporting pile according to claim 7, it is characterised in that：Any two
The junction of the triangle prestressing force foundation pit supporting pile is also arranged with outer sleeve, the cross section of outer sleeve and the cross section of pile body
It is adapted, outer sleeve is made of three coaming plate groups, and wing plate is extended at both ends to the coaming plate in the width direction, and the wing plate is equipped with
Connecting hole cooperatively forms the structure that joins end to end by connecting hole and bolt between the coaming plate and coaming plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820544039.3U CN208136920U (en) | 2018-04-17 | 2018-04-17 | A kind of triangle prestressing force foundation pit supporting pile and its connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820544039.3U CN208136920U (en) | 2018-04-17 | 2018-04-17 | A kind of triangle prestressing force foundation pit supporting pile and its connection structure |
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| Publication Number | Publication Date |
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| CN208136920U true CN208136920U (en) | 2018-11-23 |
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ID=64293121
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820544039.3U Active CN208136920U (en) | 2018-04-17 | 2018-04-17 | A kind of triangle prestressing force foundation pit supporting pile and its connection structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374422A (en) * | 2018-04-17 | 2018-08-07 | 安徽省建筑科学研究设计院 | A kind of triangle prestressing force foundation pit supporting pile and its connection structure |
| CN110029667A (en) * | 2019-04-10 | 2019-07-19 | 浙江望达建材科技有限公司 | Anticorrosive pile body connector connecting structure |
-
2018
- 2018-04-17 CN CN201820544039.3U patent/CN208136920U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374422A (en) * | 2018-04-17 | 2018-08-07 | 安徽省建筑科学研究设计院 | A kind of triangle prestressing force foundation pit supporting pile and its connection structure |
| CN110029667A (en) * | 2019-04-10 | 2019-07-19 | 浙江望达建材科技有限公司 | Anticorrosive pile body connector connecting structure |
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