CN109056739A - The retaining piles of support pile and composition - Google Patents
The retaining piles of support pile and composition Download PDFInfo
- Publication number
- CN109056739A CN109056739A CN201810852244.0A CN201810852244A CN109056739A CN 109056739 A CN109056739 A CN 109056739A CN 201810852244 A CN201810852244 A CN 201810852244A CN 109056739 A CN109056739 A CN 109056739A
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- China
- Prior art keywords
- support pile
- pile
- end plate
- support
- pile body
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Classifications
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- 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
Abstract
The invention discloses a kind of support pile and the retaining piles of composition, support pile includes the precast concrete pile body of the steel reinforcement cage constituted with several vertical prestressed reinforcements and several lateral ties, and the cross section of the pile body is the first rectangle of the first semi-circular recesses of side band；The support pile further includes the metal end plate at both ends, there is the through-hole passed through for several vertical prestressed reinforcements on metal end plate；Have more guiding inserting columns on end plate, have on another end plate with this more one-to-one grafting blind holes of guiding inserting column, have the up big and down small horn mouth snap ring being made of muti-piece metal clips in hole；The long side of support pile constitutes the uninterrupted line extended along its length with the contact surface of support pile on the inside of the foundation pit around foundation pit.The support pile and retaining piles have lesser soil compaction effect, density it is good, with foundation pit inside and the contact area of the contact surface of support pile around foundation pit be big, anti-bending strength is strong.
Description
Technical field
It is especially a kind of for prefabricated pre- in the engineerings such as pattern foundation pit supporting structure the present invention relates to technical field of building construction
The support pile of stress armored concrete and the retaining piles of composition.
Background technique
Pattern foundation pit supporting structure is the safety to guarantee Underground Construction and foundation pit surrounding environment, to foundation pit side-wall and surrounding enviroment
Support, reinforcing and the safeguard measure of use.Common foundation pit supporting construction is mainly campshed supporting, wherein with it is more have it is pre-
The hollow tubular pole of concrete circular processed, cast-in-situ bored pile and SMW engineering method stake, circular hollow tubular pole it is maximum the disadvantage is that, due to being round
Shape can not also form the smooth straight wall in a wall face, the soil pressure shared on every round support pile even if being close to arrangement
Power is simultaneously uneven, and whole stress is poor, since round support pile in practice of construction arrange by more difficult complete abutting, water-stagnating effect
Also it is relatively difficult to guarantee, so in practice, round support pile is typically all to pull open certain stake spacing arrangement, in the region for needing sealing,
One row's water-stop curtain of setting is needed on the outside of round support pile, in addition, circular hollow tubular pole interstitial hole is also easy to produce native plug, and due to face
Product is larger, has biggish soil compaction effect in Construction practices, easily causes biggish negative effect to surrounding enviroment.Cast-in-situ bored pile
In addition to except the above-mentioned circular hollow tubular pole the shortcomings that, there is also being also easy to produce a large amount of mud, the disadvantage high to environmental requirement.Conventional SMW work
Method stake all needs to pull out fashioned iron, increases and pulls out this procedure of fashioned iron, extend the construction period, moreover, fashioned iron pulls out
Except effect on environment is big, the gap formed after pulling out to fashioned iron, which blocks, requires height, and the support system no longer has after fashioned iron is pulled out
The ability of lateral deformation is resisted, and cost is affected by the duration.
Some undesirable factors are individually present in view of above several support piles, it is mixed successively to occur prestressing force in recent years
Solidifying native hollow square pile and H-type prestressed-concrete pile, overcome the above several some drawbacks.But still have it is respective not
Foot: although hollow prestressed concrete square pile is close to arrangement and can form a wall that wall face is smooth straight and water-stagnating effect is good,
And the contact surface on the inside of wall and foundation pit can form one and block up again directly as basement side wall outer membrane, support pile and basement side wall
Wall is closed, but hole is equally easy to produce native plug among it, has biggish soil compaction effect in Construction practices, easily causes to surrounding enviroment
Biggish negative effect.And H-type prestressed-concrete pile can not use centrifugation then since itself is in irregular shape in prefabrication process
Method production, so the density of its concrete-pile is undesirable；In addition, since manufacture craft is relative complex and cannot utilize hollow
Square pile tools and equipment, cost of manufacture and manufacture difficulty are relatively high；It can only be stake especially in actual construction application
A short side in two short sides of body and the contact face contact on the inside of foundation pit, by H-type prestressed-concrete pile close-packed arrays at one
When the smooth straight wall in wall face, the contact surface of corresponding H-type stake generally only has a quarter of the hollow square pile of prestressing force, connects
Contacting surface product it is smaller, and generated when not ignoring piling stake position offset error when, the contact area between this stake and stake will more
It is small, therefore H-type stake generally can all pull open certain stake spacing arrangement, this spacing is influenced by construction factor again, it cannot be guaranteed that complete phase
Together, the uniform force therefore on the pile more every than the hollow square pile for being linked to be a wall of the uniform force on its every pile is poor and stake
Water-stagnating effect between stake is bad.
Summary of the invention
The invention solves a technical problem be to provide it is a kind of not only there is lesser soil compaction effect but also density it is good,
It pre- can be answered using original hollow square pile tools and equipment and with big prefabricated of the contact area of the contact surface on the inside of foundation pit
The support pile of power armored concrete.
The technical solution of the invention is as follows, provides a kind of support pile, if including with several vertical prestressed reinforcements and
The precast concrete pile body for the steel reinforcement cage that dry root lateral tie is constituted, the cross section of the pile body are that side band first is semicircle recessed
The rectangle of slot.
After using the above structure, support pile of the present invention has the advantage that the cross section of pile body is that band semicircle in side is recessed
The rectangle of slot, it is popular visually to say, can say be hollow square pile half, that is, can be described as half square pile, might also say that it is saddle
Shape stake.Since support pile or supporting single pile use the cross-sectional shape, the shortcomings that overcoming short side stake in the prior art, in
Short side stake is compared, support pile of the present invention maintain H-type stake have lesser soil compaction effect, surrounding enviroment will not be caused larger
Negative effect the advantages of, be suitble to protect in the pattern foundation pit supporting structure for requiring stringent region in surrounding enviroment and promote the use of, it is such as bustling noisy
The more environment construction of the building constructions such as urban district.The deficiency of H-type stake is also overcomed simultaneously, compared with H-type stake, supporting of the present invention
Stake, except in addition to the both ends junction of two and half square piles increases respective one piece of partition, remaining preparation method, tools and equipment
Deng, as hollow square pile, the method that the existing hollow square pile of production can be used completely includes the method production of centrifugation, so
The density of its pile body concrete is good；Since original hollow square pile tools and equipment, cost of manufacture phase can be made full use of
To low, and manufacture craft is mature and relatively easy, high production efficiency；And the contact surface on the inside of support pile and foundation pit is the length of pile body
Side, adjacent studs can be overlapped closely, form a wall that wall face is smooth straight and water-stagnating effect is good, and on the inside of wall and foundation pit
Contact surface can be directly as basement side wall outer membrane, support pile and basement side wall form a stifled composite wall, therefore supporting single pile
The soil pressure being subject to is more uniform, and pile body stability is very ideal.
Further, every lateral tie includes the transverse steel being fixed on the outside of several vertical prestressed reinforcements, should
The both ends of transverse steel bypass respectively and are fixed on the vertical prestressed reinforcement at the first semi-circular recesses edge, its end is distinguished
It is fixed on a vertical prestressed reinforcement of the first the bottom of a semicircular groove；Every lateral tie further includes two connection pile bodies
The stiffener of a vertical prestressed reinforcement and a vertical prestressed reinforcement in pile body long side on short side.Using the above structure
Afterwards, the whole bending stiffness and anti-bending bearing capacity, that is, bending resistance of supporting pile cages of the present invention are stronger.
Further, the support pile further includes the metal end plate at both ends, and metal end plate is fixed with steel reinforcement cage, metal end
There is the through-hole passed through for several vertical prestressed reinforcements on plate；There are more guiding inserting columns on end plate, has on another end plate
With this more one-to-one spliced eyes of guiding inserting column, being oriented in spliced eye has the outer imperial palace being made of muti-piece metal clips small
Horn mouth snap ring.After using the above structure, when support pile of the present invention is vertically connected with, guiding performance is good, good to positivity, makes to connect down
The welding sequence come is more convenient, and welding quality can be guaranteed, and docks and weld efficient and convenient, the construction efficiency that operates very simple
It is high.
Further, there is chamfering for welding at the metal end plate edge.After using the above structure, supporting of the present invention
Stake after welding, can keep concordant up and down substantially at abutment joint, two adjacent supportings after making subsequent support pile constitute retaining piles
Stake is good by tightness, more preferable to the support effect of support pile and the contact surface on the inside of foundation pit, its sealing effect is more preferable when needing sealing.
Further, two short sides of the support pile are equipped with the second semi-circular recesses.After using the above structure, this hair
After bright support pile arranged adjacent constitutes retaining piles, two adjacent support piles are good by tightness, can be in two second semicircles when needing sealing
Cement injection mortar keeps hermetic seal effect good in the round hole that connected in star is constituted.
Further, two short sides of the support pile are equipped with Contraband font groove.After using the above structure, branch of the present invention
After fender pile arranged adjacent constitutes retaining piles, two adjacent support piles are good by tightness, can be in two Contraband font grooves when needing sealing
Cement injection mortar keeps hermetic seal effect good in the rectangular opening of composition.
The invention solves another technical problem be to provide and a kind of not only there is lesser soil compaction effect but also density
Well, cost of manufacture is relatively low and greatly and then makes its bending stiffness and anti-bending bearing capacity with the contact area of the contact surface on the inside of foundation pit
Good retaining piles.
Another technical solution of the invention is to provide a kind of retaining piles that above-mentioned support pile is constituted, cross section
For contact surface of the long side on the inside of support pile and foundation pit of the rectangle support pile pile body of the first semi-circular recesses of side band, structure
At the uninterrupted line extended along its length.After using the above structure, the retaining piles being made of support pile of the invention, gram
Both taken the disadvantage of H-type stake and hollow square pile respectively, while having had the advantages that: since cross-sectional area is small, therefore with H stake
The advantages of lesser soil compaction effect, but due to that can be made of centrifugal process, the density having had, and hollow square pile can be utilized
Making apparatus and tool, therefore its cost of manufacture and manufacture difficulty are relatively low, are provided simultaneously with the contact on the inside of foundation pit of hollow square pile
The contact area in face makes greatly the advantage that the good i.e. bending strength of its bending stiffness and anti-bending bearing capacity is good and water-stagnating effect is good in turn.
Further, the two sides of the short side of adjacent support pile pile body are drawn close, and two the second semi-circular recesses constitute circle
Shape hole has the cement mortar of perfusion in the round hole.After using the above structure, support pile in this retaining piles is mutual
Water sealing structure is simple, and construction is simple is efficient and convenient, and water-stagnating effect is good.
Further, the two sides of the short side of adjacent support pile pile body are drawn close, and two Contraband font grooves constitute rectangular opening,
There is the cement mortar of perfusion in the rectangular opening.After using the above structure, the mutual sealing of support pile in this retaining piles
Structure is simple, and construction is simple is efficient and convenient, and water-stagnating effect is good.
Detailed description of the invention
Fig. 1 is a kind of section of bowing (reinforcing bar is not shown) structural schematic diagram of specific embodiment of support pile of the present invention.
Fig. 2 is that support pile in Fig. 1 is bowed section view (showing reinforcing bar) structural schematic diagram.
Fig. 3 is the support pile schematic perspective view in Fig. 1.
Fig. 4 is the partial enlargement diagram of A in Fig. 3.
Fig. 5 is the retaining piles structural schematic diagram that the support pile in Fig. 1 is constituted.
Fig. 6 is section of bowing (reinforcing bar is not shown) structural schematic diagram of another specific embodiment of support pile of the present invention.
Fig. 7 is another specific embodiment retaining piles structural schematic diagram that the support pile in Fig. 6 is constituted.
Fig. 8 is section of bowing (reinforcing bar is not shown) structural representation of still another specific embodiment of support pile of the present invention
Figure.
Fig. 9 is still another specific embodiment retaining piles structural schematic diagram that the support pile in Fig. 8 is constituted.
As shown in the figure 1, vertical prestressed reinforcement, 2, lateral tie, 2.1, transverse steel, 2.2, stiffener, 3, pile body,
4, the first semi-circular recesses, 5, the rectangles of the first semi-circular recesses of band, 6, metal end plate, 7, through-hole, 8, guiding inserting column, 9,
Guiding spliced eye, 10, horn mouth snap ring, 11, line, the 12, second semi-circular recesses, 13, round hole, 14, Contraband connected in star, 15,
Rectangular opening.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.Herein it is to be understood that, for
The explanation of these specific embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, following institute
As long as technical characteristic involved in each specific embodiment of the invention of description and technological means are not constituted each other
Conflict can be combined with each other.
It is as shown in Figure 1, Figure 2, Figure 3, Figure 4 a kind of specific embodiment of support pile of the present invention
Support pile of the present invention, including the steel reinforcement cage with several vertical prestressed reinforcements 1 and several lateral ties 2 composition
Precast concrete pile body 3.The cross section of the pile body 3 is the rectangle 5 of the first semi-circular recesses of side band 4, can be described as half
Square pile, or be saddle pile.Every lateral tie 2 includes fixed as welded or binding in several vertical prestressed reinforcements 1
The transverse steel 2.1 in outside, the both ends of the transverse steel 2.1 bypass respectively and fix as semicircle recessed first in welded or binding
On the vertical prestressed reinforcement 1 of groove edge, fixation is such as welded or is bound the one of the first the bottom of a semicircular groove respectively for its end
On root vertical prestressed reinforcement 1.Lateral tie 2 further includes a vertical prestressing steel on two 3 short sides of connection support pile pile body
The stiffener 2.2 of a vertical prestressed reinforcement 1 on muscle 1 and 3 long side of pile body.According to common sense it is found that described vertical pre- answer
Power reinforcing bar 1 is pretensioned prestressing reinforcing bar.The support pile further includes the metal end plate 6 at both ends, metal end plate 6 and steel reinforcement cage
Fixation is such as welded or is spirally connected.There is the through-hole 7 passed through for several vertical prestressed reinforcements 1 on metal end plate 6.One metal end plate 6
On have more guiding inserting columns 8, have on another metal end plate 6 and this more guiding inserting columns 8 correspondingly guiding spliced eye 9
It is such as oriented to grafting blind hole, is oriented to the horn mouth snap ring 10 in spliced eye 9 having the outer imperial palace being made of muti-piece metal clips small, it is outer big
Down big up small in interior small i.e. Fig. 4, i.e. the circle that the circle of the root composition of metal clips is big, and the free end of metal clips is constituted is small.
The horn mouth snap ring 10 from seeing alternatively referred to as quincunx snap ring in shape.It can be appreciated that the diameter of guiding inserting column 8 is less than and it
The internal diameter of the internal diameter of the circle of corresponding 10 root of horn mouth snap ring and the circle greater than muti-piece metal clips free end composition, so as to lead
Corresponding guiding spliced eye 9 is easily entered to inserting column 8 and is blocked by corresponding horn mouth snap ring 10.The metal end plate
There is chamfering for welding at 6 edges, are not drawn into chamfering figure.It can be appreciated that the cross-sectional shape of metal end plate 6 and pile body 3
Cross-sectional shape is identical, such as and in Fig. 1 or following Fig. 6 or the cross-sectional shape of pile body of Fig. 8 is identical.
It is illustrated in figure 6 support pile another kind specific embodiment of the present invention, structure is substantially the same as the above specific implementation
Mode, difference are: each second semi-circular recesses are equipped on the outside of two short sides of the support pile.Certainly, every short
The quantity for the second semi-circular recesses that side is equipped with is also possible to two, three etc., preferably sets one.
It is illustrated in figure 8 the still another specific embodiment of support pile of the present invention, structure is substantially the same as above specific real
Apply mode, difference is: two short sides of the support pile are equipped with each Contraband font groove.Certainly, on every short side
The quantity for the Contraband font groove being equipped with is also possible to two, three etc., preferably sets one.
The production method of this support pile, except the junction at the i.e. both ends of half square pile of two support piles of the present invention increases by one
Outside block partition, the hollow of the prior art is can be used as hollow square pile in remaining preparation method and tools and equipment etc.
Square pile production method, therefore details are not described herein.Even the support pile in Fig. 6 and Fig. 8, although being equipped with the second half on two short sides
Circular groove or Contraband font groove, but semicircle raised line or rectangle raised line are also only reserved on exterior sheathing, and two semi-squares
Stake is still symmetrical, therefore the preparation method that the hollow square pile of the prior art still can be used includes centrifugal method production.
As shown in Fig. 5, Fig. 7, Fig. 9, the retaining piles that above-mentioned support pile is constituted, cross section is that side band first is semicircle
Contact surface of the long side of the 5 support pile pile body 3 of rectangle of groove 4 on the inside of support pile and foundation pit, composition are prolonged along its length
The uninterrupted line 11 stretched.To meet the requirement of sealing.The line 11 is usually straight line, as shown in Fig. 5, Fig. 7 and Fig. 9.Such as
Shown in Fig. 7, the two sides of the short side of adjacent support pile pile body 3 are drawn close, and two the second semi-circular recesses 12 constitute round hole 13,
There is the cement mortar of perfusion in the round hole 13.As also shown in fig. 9, the two sides of the short side of adjacent support pile pile body 3 are drawn close,
Two Contraband font grooves 14 constitute rectangular opening 15, and certainly, rectangular opening can be square hole, can also be slot, the rectangular opening
There is the cement mortar of perfusion in 15.
Supporting single pile of the invention i.e. half square pile also can plant cement soil wall in, cement soil wall can be used cement mixing pile,
Three axes agitating pile, high-pressure rotary jet grouting pile and TRD etc..
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for the technology of this field
For personnel, the invention may be variously modified and varied.It is all within spirit of that invention and principle, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of support pile, including the steel reinforcement cage with several vertical prestressed reinforcements (1) and several lateral ties (2) composition
Precast concrete pile body (3), it is characterised in that: the cross section of the pile body (3) is the first semi-circular recesses of side band (4)
Rectangle (5).
2. support pile according to claim 1, it is characterised in that: every lateral tie (2) includes being fixed on several to erect
To the transverse steel (2.1) on the outside of deformed bar (1), the both ends of the transverse steel (2.1) bypass respectively and are fixed on first
On the vertical prestressed reinforcement (1) at semi-circular recesses edge, its end be separately fixed at one of the first the bottom of a semicircular groove
On vertical prestressed reinforcement (1)；Every lateral tie (2) further includes a vertical prestressed reinforcement on two connection pile body short sides
(1) with pile body long side on a vertical prestressed reinforcement (1) stiffener (2.2).
3. support pile according to claim 1, it is characterised in that: the support pile further includes the metal end plate at both ends
(6), metal end plate (6) is fixed with steel reinforcement cage, is had on metal end plate (6) and is led to for what several vertical prestressed reinforcements (1) passed through
Hole；There are more guiding inserting columns (8) on one metal end plate (6), has on another metal end plate (6) and this more guiding inserting columns
(8) spliced eye (9) are oriented to correspondingly, the loudspeaker for having the outer imperial palace being made of muti-piece metal clips small in guiding spliced eye (9)
Mouth snap ring (10).
4. support pile according to claim 3, it is characterised in that: described metal end plate (6) edge has for welding
Chamfering.
5. support pile according to claim 1, it is characterised in that: two short sides of the support pile pile body (3) are equipped with
Second semi-circular recesses (12).
6. support pile according to claim 1, it is characterised in that: two short sides of the support pile pile body (3) are equipped with
Contraband font groove (14).
7. the retaining piles that support pile described according to claim 1~any one of 6 is constituted, it is characterised in that: cross section
For the first semi-circular recesses of side band (4) rectangle (5) support pile pile body (3) long side on the inside of support pile and foundation pit
Contact surface constitutes the uninterrupted line (11) extended along its length.
8. retaining piles according to claim 7, it is characterised in that: the two sides of the short side of adjacent support pile pile body (3)
Face is drawn close, and two the second semi-circular recesses (12) constitute round hole (13), there is the cement mortar of perfusion in the round hole (13).
9. retaining piles according to claim 7, it is characterised in that: the two sides of the short side of adjacent support pile pile body (3)
Face is drawn close, and two Contraband font grooves (14) constitute rectangular opening (15), there is the cement mortar of perfusion in the rectangular opening (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852244.0A CN109056739A (en) | 2018-07-30 | 2018-07-30 | The retaining piles of support pile and composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852244.0A CN109056739A (en) | 2018-07-30 | 2018-07-30 | The retaining piles of support pile and composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109056739A true CN109056739A (en) | 2018-12-21 |
Family
ID=64831423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810852244.0A Pending CN109056739A (en) | 2018-07-30 | 2018-07-30 | The retaining piles of support pile and composition |
Country Status (1)
| Country | Link |
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| CN (1) | CN109056739A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109537588A (en) * | 2018-12-31 | 2019-03-29 | 江苏兴厦建设工程集团有限公司 | A kind of novel practical anchor pile |
| CN112681336A (en) * | 2020-12-23 | 2021-04-20 | 江苏东合南岩土科技股份有限公司 | Construction method of plastic sleeve secant pile |
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| CN112681336A (en) * | 2020-12-23 | 2021-04-20 | 江苏东合南岩土科技股份有限公司 | Construction method of plastic sleeve secant pile |
| WO2022134232A1 (en) * | 2020-12-23 | 2022-06-30 | 江苏东合南岩土科技股份有限公司 | Plastic casing secant pile construction method |
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Application publication date: 20181221 |
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