CN106087978A - Pile for prestressed pipe - Google Patents
Pile for prestressed pipe Download PDFInfo
- Publication number
- CN106087978A CN106087978A CN201610710891.9A CN201610710891A CN106087978A CN 106087978 A CN106087978 A CN 106087978A CN 201610710891 A CN201610710891 A CN 201610710891A CN 106087978 A CN106087978 A CN 106087978A
- Authority
- CN
- China
- Prior art keywords
- pile
- pipe
- prestressed pipe
- guide plate
- joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
-
- 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
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to the technical field of rig, disclose pile for prestressed pipe, pile for prestressed pipe includes pile body, the pipe pile joint being connected to pile body lower end and is connected to the pile tube pile top of pipe pile joint lower end, the lower end of described pipe pile joint connects multiple guide plate, and multiple described guide plates are adjacently positioned around described pile tube pile top periphery.Compared with prior art, the pile for prestressed pipe that the present invention provides is executed, the lower end of its pipe pile joint, multiple guide plate is set, the plurality of guide plate is looped around the periphery of pile tube pile top, so, during pile for prestressed pipe pile, guide plate can play preferable guide effect, avoid the occurrence of hole deviation phenomenon, and the stress born when can balance pile for prestressed pipe such as soil end, offset part kinetic energy, effectively reduce broken pile probability, increase formation of pile, the pile for prestressed pipe penetration capacity to soil layer, pile for prestressed pipe is made to be relatively easy to through Backfilled Stone Layer, it is greatly improved efficiency of construction.
Description
Technical field
The present invention relates to the technical field of rig, particularly relate to pile for prestressed pipe.
Background technology
Along with the needs of coastal cities development, large-scale marine reclamation land engineering can be carried out, large quantities of superelevation, super
Deep building also can be rised sheer from level ground at reclaimation area, and in these reclaimation area territories, (diameter is at 800mm for major diameter ultra-deep pile for prestressed pipe
Above, hole depth is more than 50m) use more and more extensive.Pile for prestressed pipe has that pile quality is good, bearing capacity of single pile is high, executes
Work speed is fast, the duration is short, low cost and other advantages, and without mud off in pore forming process, it is to avoid produce a large amount of mud waste residue,
Realize green construction.
In prior art, the construction method of pile for prestressed pipe mainly has hammering method, static pressure method etc., as shown in Fig. 1, in advance
The principle schematic of stress pile tube 1 construction method.During pile for prestressed pipe 1 pile, provide external force by the mode such as hammering, static pressure
F, this external force F acts on the upper end of pile for prestressed pipe 1 pile body, in the lower end of pile for prestressed pipe 1 pile body, is provided with cross
Steel pile tip 11 is under the effect of external force F, and this steel pile tip 11 is gradually clamp-oned in soil layer, sequentially through miscellaneous fill layer 6, Backfilled Stone Layer 3
Eluvium 4, and eventually fall on basement rock 5, complete the effect of pile for prestressed pipe 2 pile.
In existing reclaimation area, widely distributed due to deep Backfilled Stone Layer 3, and by the unordered landfill of Backfilled Stone Layer 3 with fill out
The impact of the lumpiness (lumpiness particle diameter 300mm～2000mm) not of uniform size of stone, major diameter of often constructing in reclaimation area
During (φ 800mm) pile for prestressed pipe 1, it is frequently encountered pile for prestressed pipe 1 and is difficult to the difficulty through deep Backfilled Stone Layer 3, because of
This, the lower end of pile for prestressed pipe 1 is difficult to reach on basement rock 5, causes pile failure, or needs to consume construction for a long time,
Could realize pile, efficiency of construction is low, is significantly difficult to the delayed compaction cycle.
Summary of the invention
It is an object of the invention to provide pile for prestressed pipe, it is intended to solve, in pre-stress construction of the prior art, to exist
The problem that pile for prestressed pipe is difficult to cause pile failure through Backfilled Stone Layer, efficiency of construction is low.
The present invention is achieved in that pile for prestressed pipe, pile for prestressed pipe include pile body, are connected to the pile tube of pile body lower end
Joint and be connected to the pile tube pile top of pipe pile joint lower end, the lower end of described pipe pile joint connects multiple guide plate, multiple
Described guide plate is adjacently positioned around described pile tube pile top periphery, and the lower end of described guide plate is tip, described pipe pile joint
Sidewall is provided with two-way spilled water hole, the sidewall of described pile body is provided with two-way spilled water hole.
Further, the inclined shape in outside of described guide plate lower end, described tip is formed in lower end.
Further, the both sides of described guide plate lower end inclined shape respectively, and described tip it is crossed to form in lower end.
Further, the inner side of described guide plate is connected to the periphery of described pile tube pile top.
Compared with prior art, the pile for prestressed pipe that the present invention provides is executed, and the lower end of its pipe pile joint arranges multiple guiding
Plate, the plurality of guide plate is looped around the periphery of pile tube pile top, and so, during pile for prestressed pipe pile, guide plate can rise
To preferable guide effect, it is to avoid hole deviation phenomenon, and the stress born when can balance pile for prestressed pipe such as soil end occur, offsets
Part kinetic energy, effectively reduces broken pile probability, increases formation of pile, the pile for prestressed pipe penetration capacity to soil layer so that prestressing force
Pile tube is relatively easy to, through Backfilled Stone Layer, be greatly improved efficiency of construction.
Accompanying drawing explanation
Fig. 1 is the principle schematic of prestressing pipe pile construction process of the prior art；
Fig. 2 is that the down-hole hammer that provides of the embodiment of the present invention and full casing spud in the structural representation of main borehole；
Fig. 3 is the structural representation forming back-up sand hole in the reclaimation area that the embodiment of the present invention provides；
Fig. 4 is three secondary schematic top plan view holed with main borehole that the embodiment of the present invention provides；
Fig. 5 is pile for prestressed pipe structural representation of pile in back-up sand hole that the embodiment of the present invention provides；
Fig. 6 is the transverse cross sectional schematic diagram of the pile for prestressed pipe that the embodiment of the present invention provides；
Fig. 7 is the cut-away illustration of the pipe pile joint that the embodiment of the present invention provides；
Fig. 8 is the pile body schematic front view with pipe pile joint of embodiment of the present invention offer.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
Below in conjunction with specific embodiment, the realization of the present invention is described in detail.
With reference to shown in Fig. 2～8, for the preferred embodiment of present invention offer.
The present embodiment, pile for prestressed pipe 2 includes the pile body 27 of long tubular, is connected to the pipe pile joint of pile body 27 lower end
28 and be connected to the pile tube pile top 26 of pipe pile joint 28 lower end, connecting in the lower end of this pipe pile joint 28 has multiple guide plate
25, the plurality of guide plate 25 extends along the length direction of pile body 27, and in adjacently positioned around pile tube pile top 26 periphery.
In pipe pile joint 28 lower end, by arranging multiple guide plate 25, during the pile of pile for prestressed pipe 2, lead
Preferable guide effect can be played, it is to avoid hole deviation phenomenon occurs to plate 25, and when can balance pile for prestressed pipe 2 such as soil end
The stress born, offsets part kinetic energy, effectively reduces broken pile probability, increases formation of pile, and soil layer is worn by pile for prestressed pipe 2
Ability thoroughly.
Specifically, the inner side of guide plate 25 is connected on the periphery of pile tube pile top 26, so, strengthens its steadiness, makes
Obtain its guide effect more preferable, and there is more preferably penetration capacity.
In the present embodiment, the lower end of guide plate 25 is in most advanced and sophisticated 29, and so, it guides and penetration capacity is higher.
Specifically, the inclined shape of lower end outside of guide plate 25, and above-mentioned tip 29 is formed in lower end, certainly, make
For other embodiments, the both sides of guide plate 25 lower end are distinguished inclined shape, and are crossed to form above-mentioned tip 29.
In the present embodiment, the sidewall of pipe pile joint 28 is provided with two-way spilled water hole 281, so, during pile, and profit
With this two-way spilled water hole 281, outside the water in pile for prestressed pipe 2 can being excreted, thus effectively eliminate the shadow of buoyancy force of underground water
Ring, and the airtight air within pile for prestressed pipe 2 can be got rid of, prevent the phenomenon of booster.
It addition, also be provided with above-mentioned two-way spilled water hole 281 on the sidewall of pile body 27, it can play above-mentioned technology
Effect.
Utilize above-mentioned pile for prestressed pipe 2 when reclaimation area carries out pile, the soil layer of reclaimation area, from top to bottom, respectively
It is on miscellaneous fill layer 6, Backfilled Stone Layer 3, eluvium 4 and basement rock 5, uses pile for prestressed pipe 2 construction method for by prestressing force
The lower end of pile tube 2 is plugged in basement rock 5, it is achieved the effect of pile.
Pile for prestressed pipe 2 construction method, its concrete operation step is as follows:
1), treat the position of pile at reclaimation area, use down-hole hammer 22 to offer main borehole at reclaimation area, and utilize full casing 21
Following down-hole hammer 22 to creep into, namely full casing 21 is also plugged in this main borehole, and along with down-hole hammer 22 the most down
Mobile, this full casing 21 is constantly plugging down, until down-hole hammer 22 is through Backfilled Stone Layer 3, the most full casing 21 also passes through
In Backfilled Stone Layer 3, i.e. main borehole passes through Backfilled Stone Layer 3；
2), down-hole hammer 22 is transferred to, and in full casing 21, fills sand, fill to the upper surface of reclaimation area until sand,
Extract full casing 21 again, thus, main borehole forms back-up sand hole 23, and Backfilled Stone Layer 3 is passed through in this back-up sand hole 23；
3) hammering method or static pressure method etc., is utilized to apply external force in pile for prestressed pipe 2 upper end so that pile for prestressed pipe 2 is through filling out
Sand hole 23, and lower end is embedded in the basement rock 5 below Backfilled Stone Layer 3, completes the operation of whole pile for prestressed pipe 2 pile.
In pile for prestressed pipe 2 construction method of above-mentioned offer, it has the advantage that
1), speed of fulfiling hole on reclaimation area, treat the position of pile soon, first with Major diameter downhole hammer 23 and coordinate full casing 21 with
Pipe creeps into perforate, and main borehole passes through Backfilled Stone Layer 3；Rise before pulling out full casing 21, backfill main borehole with sand, upper by position, each hole
Portion's Backfilled Stone Layer 3 soil body is replaced into sand.Subsequently, pile tube squeezed into continuously by recycling hammer stake machine etc., pile tube can be made to penetrate easily and rockfill
Layer 3, efficiency of construction is substantially improved.
2), construction cost is low, the duration is short, draws hole technology owing to have employed down-hole hammer 22, and speed of application is fast, and unit is comprehensive
Efficiency is high, and mechanical execution cost is relatively low.With use impact draw hole use mud off technique, decrease mud usage amount and
The outer freight volume of useless slurry waste residue, reduces construction cost, improves environmental benefit.
3), place cleaning, field management simplify
It is mainly manifested in following aspect: construction does not use mud to circulate, and site operation environment is greatly improved, and does not deposits
In the outward transport of useless slurry waste residue and difficult treatment, greatly reducing the daily management work such as waste mud storage, outward transport, management link obtains
To simplifying greatly.
In step 3) in, back-up sand hole 23 is squeezed into pile for prestressed pipe 2, in order to ensure in the back-up sand hole 23 formed
All Backfilled Stone Layers 3 are replaced by sand, in the present embodiment, in step 1) before 2, in treating that the axis of the position of pile is
The heart, uses down-hole hammer 22 offering three secondary borings 24 the most respectively in reclaimation area, and utilizes full casing 21 to follow down-the-hole
Hammer 22 creeps into, during namely full casing 21 is also plugged in this pair boring 24, and constantly moving down along with down-hole hammer 22,
This full casing 21 is constantly plugging down, until down-hole hammer 22 is through Backfilled Stone Layer 3, the most full casing 21 also passes through and rockfilling
In layer 3, Backfilled Stone Layer 3 is passed through in i.e. secondary boring 24；Down-hole hammer 22 is transferred to, and in full casing 21, fills sand, treat sand
Fill to the upper surface of reclaimation area, then extract full casing 21, thus, secondary boring 24 formation back-up sand hole 23, this back-up sand hole 23
Pass through Backfilled Stone Layer 3.
Offer in above-mentioned three secondary borings 24, respectively centered by the axis treating pile position, intersect phase in product shape
Hand over and arrange, namely intersect to intersect around shape and arrange, and three secondary borings 24 the most all treat that the axis of pile position is included in
In, so, then can fully remove the Backfilled Stone Layer 3 treating pile position axis, namely by Backfilled Stone Layer 3 completely by sand
Replace.
Certainly, as other embodiments, above-mentioned in step 1) before, the secondary boring 24 offered can also be three with
On, as long as this secondary boring 24 of more than three is arranged in intersecting to intersect around shape, and the axis treating pile position is included
Then may be used.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (4)
1. pile for prestressed pipe, it is characterised in that pile for prestressed pipe includes pile body, the pipe pile joint being connected to pile body lower end and company
Being connected on the pile tube pile top of pipe pile joint lower end, the lower end of described pipe pile joint connects multiple guide plate, multiple described guide plates
Adjacently positioned around described pile tube pile top periphery, the lower end of described guide plate is tip, is provided with in the sidewall of described pipe pile joint
Two-way spilled water hole, is provided with two-way spilled water hole in the sidewall of described pile body.
2. the pile for prestressed pipe as described in claim 1, it is characterised in that the inclined shape in outside of described guide plate lower end,
Described tip is formed in lower end.
3. the pile for prestressed pipe as described in claim 1, it is characterised in that the both sides of described guide plate lower end are the most inclined
Shape, and described tip it is crossed to form in lower end.
4. pile for prestressed pipe as claimed in claim 1, it is characterised in that the inner side of described guide plate is connected to described pipe pile
The periphery of point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710891.9A CN106087978A (en) | 2016-08-24 | 2016-08-24 | Pile for prestressed pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710891.9A CN106087978A (en) | 2016-08-24 | 2016-08-24 | Pile for prestressed pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106087978A true CN106087978A (en) | 2016-11-09 |
Family
ID=57225707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610710891.9A Pending CN106087978A (en) | 2016-08-24 | 2016-08-24 | Pile for prestressed pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106087978A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111335312A (en) * | 2020-03-06 | 2020-06-26 | 中交第三航务工程局有限公司 | Rock-entering construction process for large-diameter lock catch steel pipe pile |
-
2016
- 2016-08-24 CN CN201610710891.9A patent/CN106087978A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111335312A (en) * | 2020-03-06 | 2020-06-26 | 中交第三航务工程局有限公司 | Rock-entering construction process for large-diameter lock catch steel pipe pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |