CN106869112A - A kind of reinforced PTC perforated pipes stake - Google Patents
A kind of reinforced PTC perforated pipes stake Download PDFInfo
- Publication number
- CN106869112A CN106869112A CN201710183922.4A CN201710183922A CN106869112A CN 106869112 A CN106869112 A CN 106869112A CN 201710183922 A CN201710183922 A CN 201710183922A CN 106869112 A CN106869112 A CN 106869112A
- Authority
- CN
- China
- Prior art keywords
- water seepage
- seepage hole
- tube wall
- wall
- pile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- 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
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- 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
Abstract
The present invention relates to a kind of reinforced PTC perforated pipes stake.The present invention is provided with outer water seepage hole on the outer tube wall for constituting pile tube, pile tube is provided with for enhanced inner tubal wall on the inside of the outer tube wall, said inner tube wall is connected with outer tube wall and pile tube inner chamber is divided into the less adapter cavity of area and the larger main chamber of area along the axially arranged of pile tube, and said inner tube wall；If the adapter cavity surrounded between inner tubal wall and outer tube wall is connected with the outer water seepage hole, the bottom of chamber portion of this adapter cavity is set to closed, and surrounds the interior water seepage hole that connection adapter cavity and main chamber are provided with the inner tubal wall of this adapter cavity.The present invention is not only able to effectively to reduce the influence that soil compaction effect in pile driving process brings, and accelerates the dissipation of excess pore water pressure, and ensure that pile sinking quality, improves pile tube bearing capacity.The present invention can also effectively improve the stiffness of structural member of PTC perforated pipes stake, and substantially increase the durability and reliability of the stake of PTC perforated pipes.
Description
Technical field
The invention belongs to PTC perforated pipes stake technical field, and in particular to a kind of reinforced PTC perforated pipes stake.
Background technology
In early days, for China's Coastal Areas mud Unfavorable geology the characteristics of, by PC tube pile structures and manufacture craft
Transformation, have developed pretensioning prestressed concrete thin-wall pipe pile (abbreviation PTC pile tubes).PTC types pile tube is used as a kind of strength of the mixing pile
Rigid pile high, is widely used by its function and advantage in pile foundation engineering.
But in work progress, static pressure pile-sinking or hammer piling mode are either taken, can all produced more obvious
Soil compaction effect phenomenon, and crackle is easily detected on pile body.Its reason is analyzed, mainly in pile driving process, soil around pile
More pore water produced by body can not dissipate in time, form excess pore water pressure higher, to pile body and the building of surrounding
Environment generates influence.Additionally, for the deep soft soil foundations such as highway, high-speed railway, road in airport, control ground sinks
Drop, is more to control in settlement amount after construction critical field its settlement amount after construction.And the main original that settlement of foundation is produced
Because being due to the discharge of the soil body pore water under outer load action.Therefore, if needing in the construction such as embankment, dykes and dams, field road
Phase produces more settling amounts as far as possible, should be by the discharge as much as possible of native pore water, to reduce the water content of soil, then its work
Settling amount will be reduced afterwards, so as to reach the purpose of control settlement and settlement amount after construction.
Therefore, generating the stake of PTC perforated pipes in the prior art, i.e., outer water seepage hole is opened up on the pile body of PTC pile tubes, then soil
Pore water will penetrate into pile tube inner chamber by outer water seepage hole, be minimized the water content of soil, and the intensity of soil is improved, ground
Base bearing capacity also strengthens therewith.
However, the outer water seepage hole set by the stake of PTC perforated pipes makes pile tube bearing capacity generate reduction to a certain extent showing
As.Therefore, how while discharge native pore water, the influence that soil compaction effect brings in reduction pile driving process, it is ensured that pile sinking
Quality, improves pile tube bearing capacity, is the technical problem that those skilled in the art have been working hard solve.
In order to effectively reduce the influence that soil compaction effect in pile driving process brings, accelerate the dissipation of excess pore water pressure,
Ensure pile sinking quality, this just has to take certain measure.
The content of the invention
In order to overcome and avoiding weak point of the prior art, the present invention to propose a kind of reinforced PTC perforated pipes stake.This
Invention is not only able to effectively to reduce the influence that soil compaction effect in pile driving process brings, and accelerates the dissipation of excess pore water pressure,
And pile sinking quality is ensure that, improve pile tube bearing capacity.
In order to realize the purpose of the present invention, present invention employs following technical scheme：
A kind of reinforced PTC perforated pipes stake, outer water seepage hole is provided with the outer tube wall for constituting pile tube, and pile tube is in the outer tube
Wall inner side is provided with for enhanced inner tubal wall, and said inner tube wall is along the axially arranged of pile tube, and said inner tube wall and outer tube
Wall is connected and pile tube inner chamber is divided into the less adapter cavity of area and the larger main chamber of area；If inner tubal wall and outer tube wall it
Between the adapter cavity that surrounds be connected with the outer water seepage hole, then the bottom of chamber portion of this adapter cavity is set to closed, and surrounds this mistake
Cross on the inner tubal wall in chamber and be provided with the interior water seepage hole of connection adapter cavity and main chamber.
Preferably, said inner tube wall is set to the smooth arc surfaced from the lateral main chamber side protrusion of adapter cavity one.
Used as a preferred embodiment of the present invention, the outer water seepage hole is distributed in the outer tube wall along pile tube axisymmetrical
Both sides, the adapter cavity surrounded between said inner tube wall and outer tube wall is connected with the outer water seepage hole, and inner tubal wall is along pile tube axle
Line is symmetrically distributed in the both sides of the outer tube wall.
It is further preferred that the described outer water seepage hole for being distributed in outer tube wall the same side is in from top to bottom column-shaped along pile tube axis
Arrange, and the outer water seepage hole is arranged along the outer tube wall in even column.
As another preferred scheme of the invention, the described outer water seepage hole of outer tube wall the same side edge from top to bottom is distributed in
Pile tube axis is arranged in column-shaped, and the outer water seepage hole is uniformly arranged along the outer tube wall in odd column；Said inner tube wall with
The adapter cavity surrounded between outer tube wall is connected with the outer water seepage hole.
Preferably, the described outer water seepage hole for being distributed in outer tube wall the same side is arranged along pile tube axis in column-shaped from top to bottom,
The interior water seepage hole of connection corresponding with outer water seepage hole is then arranged on said inner tube wall along pile tube axis in column-shaped from top to bottom.
It is further preferred that the described interior water seepage hole on same inner tubal wall is set to infiltration in two row, and this two row
Hole is symmetrically distributed in the both sides of inner tubal wall.
Still more preferably, the single-row outer water seepage hole and the quantity phase of single-row interior water seepage hole being connected by same adapter cavity
Together, this single-row outer water seepage hole is equal with the distribution height of single-row interior water seepage hole, and the spacing of adjacent outer water seepage hole interior is oozed with adjacent
The spacing in water hole is also equal.
The beneficial effects of the present invention are：The present invention is additionally arranged inner tubal wall in the pile tube inner chamber of PTC perforated pipes stake, and makes
The adapter cavity surrounded between inner tubal wall and outer tube wall is connected with the outer water seepage hole, and the present invention also sets accordingly on inner tubal wall
Interior water seepage hole is equipped with, while the bottom of the adapter cavity being connected with the outer water seepage hole is set to closed by the present invention.Then exist
Reinforced PTC perforated pipes sunk pile construction period in the present invention, the outer water seepage hole on pile tube outer tube wall can allow pile peripheral earth
In more pore waters, mud enter adapter cavity, then by adapter cavity pile tube main chamber is escaped and enter, finally using miniature
Water pump extracts the water in pile tube main chamber out.The present invention can be effectively reduced the moisture content of pile peripheral earth, improve pile peripheral earth
Shearing strength, strengthen the bearing capacity of pile foundation, reached mitigation pile tube soil compaction effect, reduce pile sinking to adjacent stake and Adjacent Buildings
The purpose of harm；Additionally, the present invention can also effectively improve the stiffness of structural member of PTC perforated pipes stake, PTC pile tubes are reduced because of perforate
The degree of bearing capacity reduction is caused, easily the problem of pile body crackle occurs during improvement PTC perforated pipe pile driving constructions, substantially increased
The durability and reliability of PTC perforated pipes stake.
Brief description of the drawings
Fig. 1 is the unidirectional symmetrical structural representation of adapter cavity in the present invention.
Fig. 2 is the structural representation of another cross section of the pile tube in Fig. 1.
Fig. 3 is the A-A generalized sections of Fig. 1.
Fig. 4 is the B-B generalized sections of Fig. 1.
Fig. 5 is to be provided with the adapter cavity that is connected with outer water seepage hole simultaneously in pile tube and be not connected with outer water seepage hole
The structural representation of adapter cavity.
Fig. 6 is the structural representation of adapter cavity bi-directional symmetrical distribution in the present invention.
Fig. 7 is the structural representation of another cross section of the pile tube in Fig. 6.
Fig. 8 is the A-A sections of Fig. 6 and the structural representation of B-B sections.
Fig. 9 is the structural representation of the star-shaped distribution of adapter cavity in the present invention.
Figure 10 is the structural representation of another cross section of the pile tube in Fig. 9.
Figure 11 is the A-A generalized sections of Fig. 9.
Figure 12 is the B-B generalized sections of Fig. 9.
Mark implication in figure is as follows：
The outer water seepage hole 12- main chamber 13- adapter cavities of 1- outer tube walls 11-
Water seepage hole in 2- inner tubal walls 21-
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in Fig. 1~12, a kind of reinforced PTC perforated pipes stake is provided with outer water seepage hole on the outer tube wall 1 for constituting pile tube
11, pile tube is provided with for enhanced inner tubal wall 2 in the inner side of the outer tube wall 1, and said inner tube wall 2 sets along the axial direction of pile tube
Put, and said inner tube wall 2 is connected with outer tube wall 1 and pile tube inner chamber is divided into the less adapter cavity 13 of area and area is larger
Main chamber 12.
As shown in Fig. 1,2,5~7,9,10, said inner tube wall 2 is set to from the lateral side of main chamber 12 protrusion of adapter cavity 13 1
Smooth arc surfaced.
The adapter cavity 13 surrounded between inner tubal wall 2 and outer tube wall 1 can be connected with the outer water seepage hole 11, it is also possible to no
It is connected.As shown in Fig. 1,2,4,6,8~12, if the adapter cavity 13 surrounded between inner tubal wall 2 and outer tube wall 1 and the outer infiltration
Hole 11 is connected, then the bottom of chamber portion of this adapter cavity 13 is set to closed, and surrounds and be provided with the inner tubal wall 2 of this adapter cavity 13
The interior water seepage hole 21 of connection adapter cavity 13 and main chamber 12.Being surrounded between horizontal two inner tubal walls 2 and outer tube wall 1 in Fig. 5
Adapter cavity 13 i.e. can not be connected with the outer water seepage hole 11.
As shown in Fig. 4,8,11,12, the described outer water seepage hole 11 for being distributed in the same side of outer tube wall 1 in the present embodiment is from upper
And it is lower arranged in column-shaped along pile tube axis, with the interior water seepage hole 21 of the corresponding connection of outer water seepage hole 11 then from top to bottom along pile tube axle
Line is arranged on said inner tube wall 2 in column-shaped.
As shown in Fig. 1,2,5~7,9,10, the described interior water seepage hole 21 on same inner tubal wall 2 is set to two row, and
Water seepage hole 21 is symmetrically distributed in the both sides of inner tubal wall 2 in this two row.
As shown in Fig. 8,11,12, the single-row outer water seepage hole 11 and single-row interior water seepage hole 21 being connected by same adapter cavity 13
Quantity it is identical, this single-row outer water seepage hole 11 is equal with the distribution height of single-row interior water seepage hole 21, and adjacent outer water seepage hole 11
Spacing is also equal with the spacing of adjacent interior water seepage hole 21.
Distribution spacing between outer water seepage hole 11 and the diameter and adjacent holes of interior water seepage hole 21 will according to concrete engineering
Ask to design.
Outer water seepage hole 11, inner tubal wall 2, interior water seepage hole 21 and adapter cavity 13 in the present invention is main by following several arrangements
Mode：
1. unidirectional symmetric form/bi-directional symmetrical type
As shown in Fig. 1~4,6~8, the outer water seepage hole 11 is distributed in the two of the outer tube wall 1 along pile tube axisymmetrical
Side, the adapter cavity 13 surrounded between said inner tube wall 2 and outer tube wall 1 is connected with the outer water seepage hole 11, and inner tubal wall 2 is along pipe
Stake axisymmetrical is distributed in the both sides of the outer tube wall 1.
The described outer water seepage hole 11 for being distributed in the same side of outer tube wall 1 is arranged along pile tube axis in column-shaped from top to bottom, and institute
Outer water seepage hole 11 is stated to be arranged in even column along the outer tube wall 1.
As shown in figures 1-4, when the outer water seepage hole 11 is set to two row altogether along the outer tube wall 1, now each row
One inner tubal wall 2 of correspondence of outer water seepage hole 11, this inner tubal wall 2 and outer tube wall 1 constitute an adapter cavity 13, are set on each inner tubal wall 2
Put the symmetrical interior water seepage hole 21 of two row.Now the inner tubal wall 2 with interior water seepage hole 21 is unidirectional symmetric form arrangement.
As can be seen from figures 6 to 8, when the outer water seepage hole 11 is set to four row altogether along the outer tube wall 1, now each row
One inner tubal wall 2 of correspondence of outer water seepage hole 11, this inner tubal wall 2 and outer tube wall 1 constitute an adapter cavity 13, are set on each inner tubal wall 2
Put the symmetrical interior water seepage hole 21 of two row.Now one group two-by-two of the inner tubal wall 2 with interior water seepage hole 21, constitutes bi-directional symmetrical type
Arrangement.
2. starlike profile
As shown in figs. 9 to 12, the described outer water seepage hole 11 for being distributed in the same side of outer tube wall 1 is in from top to bottom along pile tube axis
Column-shaped is arranged, and the outer water seepage hole 11 is uniformly arranged along the outer tube wall 1 in odd column；Said inner tube wall 2 and outer tube wall 1
Between the adapter cavity 13 that surrounds be connected with the outer water seepage hole 11.
Described outer water seepage hole 11 shown in Fig. 9~12 is set to three row altogether along the outer tube wall 1, now each row extravasation
One inner tubal wall 2 of correspondence of water hole 11, this inner tubal wall 2 and outer tube wall 1 constitute an adapter cavity 13, two are set on each inner tubal wall 2
The symmetrical interior water seepage hole 21 of row.Now the inner tubal wall 2 with interior water seepage hole 21 is starlike profile arrangement.
Reinforced PTC perforated pipes stake in the present invention only need on request be produced i.e. in factory using special perforated pipe stake punching block
Can, production technology of its production method compared with perforated pipe stake.Stress concentration phenomenon is produced in view of pile lining perforate, the component shows
Field construction uses static pressure pile-sinking mode, must not use hammer piling and pile vibrosinking mode.In pile driving process, pile tube outer tube wall 1
On outer water seepage hole 11 more pore waters, mud in pile peripheral earth can be allowed to enter adapter cavity 13, then by the row of adapter cavity 13
Go out and enter into pile tube main chamber 12, finally extract the water in pile tube main chamber 12 out using micro pump.The present invention can have
Effect ground reduces the moisture content of pile peripheral earth, improves the shearing strength of pile peripheral earth, strengthens the bearing capacity of pile foundation, and it is heavy effectively to reduce
Stake soil compaction effect is to adjacent stake and the influence of surrounding buildingses environment.
Claims (8)
1. a kind of reinforced PTC perforated pipes stake, outer water seepage hole (11) is provided with the outer tube wall (1) for constituting pile tube, and its feature exists
In：Pile tube is provided with for enhanced inner tubal wall (2) in the outer tube wall (1) inner side, said inner tube wall (2) along pile tube axle
It is connected with outer tube wall (1) and pile tube inner chamber is divided into the less adapter cavity of area (13) to setting, and said inner tube wall (2)
The main chamber (12) larger with area；If the adapter cavity (13) surrounded between inner tubal wall (2) and outer tube wall (1) and the outer water seepage hole
(11) it is connected, then the bottom of chamber portion of this adapter cavity (13) is set to closed, and surrounds on the inner tubal wall (2) of this adapter cavity (13)
It is provided with the interior water seepage hole (21) of connection adapter cavity (13) and main chamber (12).
2. a kind of reinforced PTC perforated pipes stake as claimed in claim 1, it is characterised in that：Said inner tube wall (2) is set to certainly
The smooth arc surfaced of lateral main chamber (12) the side protrusion of adapter cavity (13).
3. a kind of reinforced PTC perforated pipes stake as claimed in claim 1 or 2, it is characterised in that：Outer water seepage hole (11) edge
Pile tube axisymmetrical is distributed in the both sides of the outer tube wall (1), the transition surrounded between said inner tube wall (2) and outer tube wall (1)
Chamber (13) is connected with the outer water seepage hole (11), and inner tubal wall (2) is distributed in the outer tube wall (1) along pile tube axisymmetrical
Both sides.
4. a kind of reinforced PTC perforated pipes stake as claimed in claim 3, it is characterised in that：It is distributed in outer tube wall (1) the same side
Described outer water seepage hole (11) arranged in column-shaped along pile tube axis from top to bottom, and the outer water seepage hole (11) is along the outer tube
Wall (1) is arranged in even column.
5. a kind of reinforced PTC perforated pipes stake as claimed in claim 1 or 2, it is characterised in that：It is distributed in outer tube wall (1) same
The described outer water seepage hole (11) of side is arranged along pile tube axis in column-shaped from top to bottom, and the outer water seepage hole (11) is along described
Outer tube wall (1) is uniformly arranged in odd column；The adapter cavity (13) surrounded between said inner tube wall (2) and outer tube wall (1) with it is described
Outer water seepage hole (11) is connected.
6. a kind of reinforced PTC perforated pipes stake as claimed in claim 2, it is characterised in that：It is distributed in outer tube wall (1) the same side
Described outer water seepage hole (11) from top to bottom along pile tube axis in column-shaped arrange, connection corresponding with outer water seepage hole (11) in ooze
Water hole (21) is then arranged on said inner tube wall (2) along pile tube axis in column-shaped from top to bottom.
7. a kind of reinforced PTC perforated pipes stake as claimed in claim 6, it is characterised in that：On same inner tubal wall (2)
The interior water seepage hole (21) is set to the both sides that water seepage hole (21) in two row, and this two row is symmetrically distributed in inner tubal wall (2).
8. a kind of reinforced PTC perforated pipes stake as claimed in claims 6 or 7, it is characterised in that：By same adapter cavity (13) phase
The single-row outer water seepage hole (11) of connection is identical with the quantity of single-row interior water seepage hole (21), and this single-row outer water seepage hole (11) is interior with single-row
The distribution height of water seepage hole (21) is equal, and the spacing of adjacent outer water seepage hole (11) and adjacent interior water seepage hole (21) spacing also phase
Deng.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710183922.4A CN106869112A (en) | 2017-03-24 | 2017-03-24 | A kind of reinforced PTC perforated pipes stake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710183922.4A CN106869112A (en) | 2017-03-24 | 2017-03-24 | A kind of reinforced PTC perforated pipes stake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106869112A true CN106869112A (en) | 2017-06-20 |
Family
ID=59172204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710183922.4A Pending CN106869112A (en) | 2017-03-24 | 2017-03-24 | A kind of reinforced PTC perforated pipes stake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106869112A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001214451A (en) * | 2000-02-02 | 2001-08-07 | Kanpai Co Ltd | Ground-water level lowering method and its equipment |
| CN1313926A (en) * | 1998-08-21 | 2001-09-19 | 泰西莫开发销售有限公司 | Device for drilling or draining holes in soil or rock |
| CN201620413U (en) * | 2010-02-03 | 2010-11-03 | 南昌航空大学 | Composite foundation with PTC perforated tubular piles with caps |
| CN105274985A (en) * | 2015-03-03 | 2016-01-27 | 龙源（北京）风电工程设计咨询有限公司 | Steel pipe pile internally provided with multiple arc-shaped stiffening ribs and construction method of steel pipe pile |
| CN206768802U (en) * | 2017-03-24 | 2017-12-19 | 安徽省建筑科学研究设计院 | A kind of reinforced PTC perforated pipes stake |
-
2017
- 2017-03-24 CN CN201710183922.4A patent/CN106869112A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313926A (en) * | 1998-08-21 | 2001-09-19 | 泰西莫开发销售有限公司 | Device for drilling or draining holes in soil or rock |
| JP2001214451A (en) * | 2000-02-02 | 2001-08-07 | Kanpai Co Ltd | Ground-water level lowering method and its equipment |
| CN201620413U (en) * | 2010-02-03 | 2010-11-03 | 南昌航空大学 | Composite foundation with PTC perforated tubular piles with caps |
| CN105274985A (en) * | 2015-03-03 | 2016-01-27 | 龙源（北京）风电工程设计咨询有限公司 | Steel pipe pile internally provided with multiple arc-shaped stiffening ribs and construction method of steel pipe pile |
| CN206768802U (en) * | 2017-03-24 | 2017-12-19 | 安徽省建筑科学研究设计院 | A kind of reinforced PTC perforated pipes stake |
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