CN105970972A - Novel secant pile supporting structure and construction method thereof - Google Patents
Novel secant pile supporting structure and construction method thereof Download PDFInfo
- Publication number
- CN105970972A CN105970972A CN201610454974.6A CN201610454974A CN105970972A CN 105970972 A CN105970972 A CN 105970972A CN 201610454974 A CN201610454974 A CN 201610454974A CN 105970972 A CN105970972 A CN 105970972A
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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
-
- 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
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
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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 invention discloses a novel secant pile supporting structure and a construction method thereof. The novel secant pile supporting structure is characterized in that a plurality of round-section piles arranged at intervals are included; an elliptical-section pile is arranged between every two adjacent round-section piles in an occlusion manner; the round-section piles are manual hole digging piles; each round-section pile comprises a round-section pile protection wall and a round-section pile body in the round-section pile protection wall; the elliptical-section piles are manual hole digging piles; each elliptical-section pile comprises an elliptical-section pile protection wall and an elliptical-section pile body in the elliptical-section pile protection wall; and the two sides of each elliptical-section pile body are poured on the surface of the corresponding round-section pile bodies subjected to chiseling treatment. The elliptical-section piles and the round-section piles are combined, the occlusion area is effectively increased under the condition of the same pile distance, the occlusion degree is increased through chiseled occlusion faces, and then the impervious performance and integrality of the secant piles are improved.
Description
Technical field
The invention belongs to civil engineering deep foundation pit technology field, be specifically related to a kind of novel interlocking pile
Supporting construction and construction method thereof.
Background technology
In Deep Foundation Pit Supporting Project, there is a class vertically to prop up gear component and use circular campshed adjacent studs
It is mutually twisted (stake circumference is mutually embedding) and forms the version of interlocking pile.It is compared with common campshed,
Having the good performance that intercepts water, construction technology is simple, the auxiliary sealing of the campshed that is not required to commonly to hole
And gear soil measure between stake, and improve shearing strength and the safety of supporting construction.Typical circular
Cross section hole-drilling interlocking pile also presents its weak point in engineer applied, mainly shows as boring
Interlocking pile needs special equipment, and construction vertical precision requires higher, easily causes occlusion bad, rises not
To sealing effect, and element stake be only capable of undertaking shearing cannot resist torque, have impact on campshed entirety and resist
Curved rigidity, as element stake arrangement of reinforcement need to then be deposited by design because of plastic concrete own characteristic and the occlusion degree of depth
The effective bending resistance in cross section cannot played；Secondly, the reinforced concrete pile pile mistake applied after
Journey need to cut element stake will produce significant shock and noise, require engineering equipment higher and to environment
Cause certain impact；Additionally, the performances such as impervious, the shearing resistance of interlocking pile entirety by occlusal surface size and
Occlusion influential effect, but circular cross-section improves occlusal surface and need to increase the occlusion degree of depth, will increase pile
Difficulty improves construction investment.
Summary of the invention
In place of it is an object of the invention to overcome above-mentioned the deficiencies in the prior art, and provide a kind of new
Type interlocking pile supporting construction and construction method thereof.It uses elliptic cross-section stake and circular cross-section stake
Combine, under the conditions of identical pile spacing, be effectively increased occlusal contact area, and dabbing processes occlusion
Degree of engagement is improved in face, and then improves anti-permeability performance and the globality of interlocking pile.
It is an object of the invention to be reached by following measure: a kind of novel interlocking pile supporting is tied
Structure, it is characterised in that: include multiple spaced circular cross-section stake, adjacent circular cross-section
Being occluding with elliptic cross-section stake between Zhuan, described circular cross-section stake is artificial digging pile, described circle
Tee section stake includes the circular cross-section stake stake in circular cross-section pile wall and circular cross-section pile wall
Body, described elliptic cross-section stake is artificial digging pile, and described elliptic cross-section stake includes ellipse
Elliptic cross-section stake pile body in cross section pile wall and elliptic cross-section pile wall, described ellipse
The both sides of cross section pile wall are connected on circular cross-section stake pile body, elliptic cross-section pile wall scope
The circular cross-section pile wall of interior correspondence is cut the surface exposing circular cross-section stake pile body, oval
The both sides of cross section stake pile body are cast on the surface of the circular cross-section stake pile body after dabbing processes.
Further, the short axle of elliptic cross-section of described elliptic cross-section stake and circular cross-section stake
Circular cross section diameter is equal.
Further, it is provided with circular cross-section pile cages in described circular cross-section stake pile body.
Further, it is provided with elliptic cross-section pile cages in described elliptic cross-section stake pile body.
Further, it is provided with in described circular cross-section pile wall and elliptic cross-section pile wall
Retaining wall reinforcing bar.
A kind of construction method of novel interlocking pile supporting construction, including following operation:
1) interval construction circular cross-section stake, merogenesis excavation circular cross-section stake, first excavation circle is cut
Face stake stake holes, then applies circular cross-section pile wall, colligation retaining wall reinforcing bar, erecting of retaining wall reinforcing bar
Insert in lower floor's earthwork to reinforcing bar, for joint vertical reinforcement overlap joint up and down, use steel form conduct
Dado template, the repeatable turnover of dado template uses, after steel shutterings installs, from steel form
Mouth pours breast wall concrete, forms circular cross-section pile wall, and then workmen enters circular cutting
Excavating lower floor's earthwork in pile wall hole, face, formwork pours breast wall concrete, so circulates, until
Dig the degree of depth that design requires；
2) in circular cross-section pile wall, lift circular cross-section pile cages, pour circular cross-section
Stake pile body；
3) merogenesis excavation elliptic cross-section stake between adjacent circular cross-section stake, first excavates ellipse
Circular cross-section stake stake holes, then applies elliptic cross-section pile wall, colligation retaining wall reinforcing bar, retaining wall
The vertical reinforcement of reinforcing bar inserts in lower floor's earthwork, for joint vertical reinforcement overlap joint up and down；Meanwhile,
Cut the need in the range of elliptic cross-section pile wall and cut circular cross-section pile wall, the circle exposed
The annular horizontal reinforcing bar of tee section pile wall reinforcing bar stretches into elliptic cross-section pile wall, for ellipse
The annular horizontal bar splicing of circular cross-section pile wall reinforcing bar, uses steel form as retaining wall mould
Plate, the repeatable turnover of dado template uses, and after steel shutterings installs, pours from steel form is suitable for reading
Breast wall concrete, forms elliptic cross-section pile wall；
4) use manually or mechanically mode that the circular cross-section stake pile body surface exposed is dug
Hair processes, and workmen excavates lower floor's earthwork in entering elliptic cross-section pile wall hole, and formwork waters
Build breast wall concrete, so circulate, until digging the degree of depth that design requires；
5) pour elliptic cross-section stake pile body, form interlocking pile.
Further, a diameter of 1m～2m of circular cross-section stake pile body, adjacent circular cross-section
The distance of center circle of stake is 1.6m～4.4m.
Further, described operation 3) in, before pouring elliptic cross-section stake pile body, lifting
Elliptic cross-section pile cages.
Further, the short axle of the elliptic cross-section of elliptic cross-section stake and the circle of circular cross-section stake
Diameter of section is equal.
Further, elliptic cross-section stake and circular cross-section stake occlusal surface width L are not less than
300mm。
The present invention has the advantage that as follows: it uses elliptic cross-section stake to tie mutually with circular cross-section stake
Closing and form interlocking pile, be effectively increased occlusal contact area under the conditions of identical pile spacing, dabbing processes
Occlusal surface improves degree of engagement, and then improves anti-permeability performance and the globality of interlocking pile.Meanwhile,
It solve to construction equipment and construct high-precision requirement and first apply element stake with after apply
Reinforced concrete pile equal sectional reinforcement problem, improves interlocking pile integral rigidity and bending resistance.
Additionally, utilize manually digging hole elliptic cross-section stake to apply engineering method, it is to avoid cutting first applies circle
Cross section stake, reduces engineering construction difficulty, reduces equipment cost place demand, reduces environment shadow
Ring.
Accompanying drawing explanation
Fig. 1 is the plane graph applying circular cross-section stake.
Fig. 2 is excavation oval cross section pile wall plane graph.
Fig. 3 is the plane graph that the present invention does not lifts elliptic cross-section pile cages.
Fig. 4 is the plane graph that the present invention is lifted with elliptic cross-section pile cages.
In figure, 1, circular cross-section pile wall, 2, circular cross-section stake pile body, 3, circular cross-section
Pile cages, 4, need to abolish circular cross-section pile wall, 5, elliptic cross-section pile wall, 6,
Elliptic cross-section pile body, 7, elliptic cross-section pile cages.
Detailed description of the invention
Describe the performance of the present invention below in conjunction with the accompanying drawings in detail, but it is not intended that this
Bright restriction, only illustrates.Simultaneously by explanation, advantages of the present invention will become more
Clear and easy to understand.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of novel interlocking pile supporting construction, bag
Include multiple spaced circular cross-section stake, between adjacent circular cross-section stake, be occluding with ellipse
Cross section stake, circular cross-section stake is artificial digging pile, and described circular cross-section stake includes circular cross-section stake
Circular cross-section stake pile body 2 in retaining wall 1 and circular cross-section pile wall 1, described elliptic cross-section
Stake is artificial digging pile, and described elliptic cross-section stake includes elliptic cross-section pile wall 5 and ellipse
Elliptic cross-section stake pile body 6 in tee section pile wall 5, described elliptic cross-section pile wall 5
Both sides be connected on circular cross-section stake pile body 2, corresponding in the range of elliptic cross-section pile wall 5
Circular cross-section pile wall 1 cut the surface exposing circular cross-section stake pile body 2, oval cut
The both sides of face stake pile body 6 are cast on the surface of the circular cross-section stake pile body 2 after dabbing processes.
It is provided with retaining wall reinforcing bar in circular cross-section pile wall 1 and elliptic cross-section pile wall 5.
Cut exposed circular cross-section stake stake as in figure 2 it is shown, circular cross-section pile wall 4 need to be cut
The surface of body 2.As it is shown on figure 3, the short axle of the elliptic cross-section of elliptic cross-section stake cuts with circular
The circular cross section diameter of face stake is equal, is provided with circular cross-section stake in described circular cross-section stake pile body 2
Steel reinforcement cage 3.As shown in Figure 4, elliptic cross-section stake steel it is provided with in elliptic cross-section stake pile body 6
Muscle cage 7.
A kind of construction method of novel interlocking pile supporting construction, including following operation:
1) interval construction circular cross-section stake, merogenesis excavation circular cross-section stake, first excavation circle is cut
Face stake stake holes, then applies circular cross-section pile wall 1, colligation retaining wall reinforcing bar, retaining wall reinforcing bar
Vertical reinforcement inserts in lower floor's earthwork, for joint vertical reinforcement overlap joint up and down, uses steel form to make
For dado template, the repeatable turnover of dado template uses, after steel shutterings installs, from steel form
The breast wall concrete that pours suitable for reading, forms circular cross-section pile wall 1, and then workmen enters circle
Excavating lower floor's earthwork in tee section pile wall hole, formwork pours breast wall concrete, so circulates,
Until digging the degree of depth that design requires；See Fig. 1.Wherein, in actual application, circular cross-section stake
The vertical reinforcement of retaining wall reinforcing bar inserts lower floor's earthwork length not less than 150mm；From steel form
Mouth pours breast wall concrete, treats that breast wall concrete intensity is not less than 1.0Mpa, 24h under room temperature
Rear dismounting template；Every pitch circle tee section stake is highly 1m, and circular cross-section pile wall reinforcing bar uses
Diameter 6～9mm plain bar, circular cross-section pile wall 1 thickness is 80mm～150mm.
2) in circular cross-section pile wall 1, lift circular cross-section pile cages 3, pour circle
Cross section stake pile body 2；
3) merogenesis excavation elliptic cross-section stake between adjacent circular cross-section stake, first excavates ellipse
Circular cross-section stake stake holes, then applies elliptic cross-section pile wall 5, colligation retaining wall reinforcing bar, protects
The vertical reinforcement of wall reinforcing bar inserts in lower floor's earthwork, for joint vertical reinforcement overlap joint up and down；Meanwhile,
Cut the need in the range of elliptic cross-section pile wall 5 and cut circular cross-section pile wall 4, expose
The annular horizontal reinforcing bar of circular cross-section pile wall reinforcing bar stretch into elliptic cross-section pile wall 5, use
In the annular horizontal bar splicing with elliptic cross-section pile wall reinforcing bar, use steel form as protecting
Wall form, the repeatable turnover of dado template uses, after steel shutterings installs, suitable for reading from steel form
Pouring breast wall concrete, form elliptic cross-section pile wall 5, workmen enters oval cutting
Excavating lower floor's earthwork in pile wall hole, face, formwork pours breast wall concrete, so circulates, until
Dig the degree of depth that design requires；See Fig. 2.Wherein, in actual application, elliptic cross-section stake is protected
The vertical reinforcement of wall reinforcing bar inserts lower floor's earthwork length not less than 150mm；The circle exposed
It is the least that the annular horizontal reinforcing bar of cross section pile wall reinforcing bar stretches into elliptic cross-section pile wall 5 length
In 150mm；Pour breast wall concrete from steel form is suitable for reading, treat that breast wall concrete intensity is the least
Template is removed after 24h under 1.0Mpa, room temperature；Often joint elliptic cross-section stake is highly 1m,
Elliptic cross-section pile wall reinforcing bar uses diameter 6～9mm plain bar, and elliptic cross-section stake is protected
Wall 5 thickness is 80mm～150mm.
4) manually or mechanically mode is used to enter to circular cross-section stake pile body 2 surface exposed
Row dabbing processes；
5) pour elliptic cross-section stake pile body 6, form interlocking pile, see Fig. 3.Wherein, according to
Practice of construction needs, and before pouring elliptic cross-section stake pile body 6, lifts elliptic cross-section stake steel
Muscle cage 7, is shown in Fig. 4.
In above-mentioned working procedure, a diameter of 1m～2m of circular cross-section stake pile body 2 is adjacent
The distance of center circle of circular cross-section stake be 1.6m～4.4m；The elliptic cross-section of elliptic cross-section stake is short
The circular cross section diameter of axle and circular cross-section stake is equal；Elliptic cross-section stake and circular cross-section stake are stung
Close face width degree L not less than 300mm；After elliptic cross-section stake is excavated to designed elevation, clean with water
Circular cross-section stake pile body 2 surface of dabbing, cleaning elliptic cross-section pile wall 5 and the end, hole.
Claims (10)
1. a novel interlocking pile supporting construction, it is characterised in that: include multiple being spaced
Circular cross-section stake, be occluding with elliptic cross-section stake, described circle between adjacent circular cross-section stake
Tee section stake is artificial digging pile, and described circular cross-section stake includes circular cross-section pile wall and circle
Circular cross-section stake pile body in the pile wall of cross section, described elliptic cross-section stake is artificial digging pile,
In described elliptic cross-section stake includes elliptic cross-section pile wall and elliptic cross-section pile wall
Elliptic cross-section stake pile body, the both sides of described elliptic cross-section pile wall are connected to circular cross-section stake
On pile body, circular cross-section pile wall corresponding in the range of elliptic cross-section pile wall is cut to be exposed
The surface of circular cross-section stake pile body, after the both sides of elliptic cross-section stake pile body are cast in dabbing process
Circular cross-section stake pile body surface on.
Novel interlocking pile supporting construction the most according to claim 1, it is characterised in that:
The short axle of elliptic cross-section of described elliptic cross-section stake and the circular cross section diameter of circular cross-section stake
Equal.
Novel interlocking pile supporting construction the most according to claim 1, it is characterised in that:
It is provided with circular cross-section pile cages in described circular cross-section stake pile body.
Novel interlocking pile supporting construction the most according to claim 1, it is characterised in that:
It is provided with elliptic cross-section pile cages in described elliptic cross-section stake pile body.
5. according to the novel interlocking pile supporting construction described in claim 1 or 2 or 3 or 4,
It is characterized in that: be provided with in described circular cross-section pile wall and elliptic cross-section pile wall and protect
Wall reinforcing bar.
6. a construction method for novel interlocking pile supporting construction, including following operation:
1) interval construction circular cross-section stake, merogenesis excavation circular cross-section stake, first excavation circle is cut
Face stake stake holes, then applies circular cross-section pile wall, colligation retaining wall reinforcing bar, erecting of retaining wall reinforcing bar
Insert in lower floor's earthwork to reinforcing bar, for joint vertical reinforcement overlap joint up and down, use steel form conduct
Dado template, the repeatable turnover of dado template uses, after steel shutterings installs, from steel form
Mouth pours breast wall concrete, forms circular cross-section pile wall, and then workmen enters circular cutting
Excavating lower floor's earthwork in pile wall hole, face, formwork pours breast wall concrete, so circulates, until
Dig the degree of depth that design requires；
2) in circular cross-section pile wall, lift circular cross-section pile cages, pour circular cross-section
Stake pile body；
3) merogenesis excavation elliptic cross-section stake between adjacent circular cross-section stake, first excavates ellipse
Circular cross-section stake stake holes, then applies elliptic cross-section pile wall, colligation retaining wall reinforcing bar, retaining wall
The vertical reinforcement of reinforcing bar inserts in lower floor's earthwork, for joint vertical reinforcement overlap joint up and down；Meanwhile,
Cut the need in the range of elliptic cross-section pile wall and cut circular cross-section pile wall, the circle exposed
The annular horizontal reinforcing bar of tee section pile wall reinforcing bar stretches into elliptic cross-section pile wall, for ellipse
The annular horizontal bar splicing of circular cross-section pile wall reinforcing bar, uses steel form as retaining wall mould
Plate, the repeatable turnover of dado template uses, and after steel shutterings installs, pours from steel form is suitable for reading
Breast wall concrete, forms elliptic cross-section pile wall, and workmen enters elliptic cross-section stake and protects
The excavation lower floor earthwork in cinclides, formwork pours breast wall concrete, so circulates, and sets until digging
The degree of depth that meter requires；
4) use manually or mechanically mode that the circular cross-section stake pile body surface exposed is dug
Hair processes；
5) pour elliptic cross-section stake pile body, form interlocking pile.
The construction method of novel interlocking pile supporting construction the most according to claim 6, its
It is characterised by: a diameter of 1m～2m of circular cross-section stake pile body, adjacent circular cross-section stake
Distance of center circle is 1.6m～4.4m.
The construction method of novel interlocking pile supporting construction the most according to claim 6, its
It is characterised by: described operation 3) in, before pouring elliptic cross-section stake pile body, lifting ellipse
Tee section pile cages.
The construction method of novel interlocking pile supporting construction the most according to claim 6, its
It is characterised by: the short axle of elliptic cross-section of elliptic cross-section stake and the circular cross-section of circular cross-section stake
Equal diameters.
The construction method of novel interlocking pile supporting construction the most according to claim 6, its
It is characterised by: elliptic cross-section stake and circular cross-section stake occlusal surface width L are not less than 300mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610454974.6A CN105970972A (en) | 2016-06-21 | 2016-06-21 | Novel secant pile supporting structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610454974.6A CN105970972A (en) | 2016-06-21 | 2016-06-21 | Novel secant pile supporting structure and construction method thereof |
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| CN105970972A true CN105970972A (en) | 2016-09-28 |
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| CN201610454974.6A Pending CN105970972A (en) | 2016-06-21 | 2016-06-21 | Novel secant pile supporting structure and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111270676A (en) * | 2020-02-10 | 2020-06-12 | 上海市城市建设设计研究总院（集团）有限公司 | Pile-wall integrated construction method for manual hole digging |
| CN113668557A (en) * | 2021-08-18 | 2021-11-19 | 中铁第四勘察设计院集团有限公司 | Steel sleeve for plain pile construction of secant pile, secant pile and secant pile construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113668557A (en) * | 2021-08-18 | 2021-11-19 | 中铁第四勘察设计院集团有限公司 | Steel sleeve for plain pile construction of secant pile, secant pile and secant pile construction method |
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Application publication date: 20160928 |