CN209368810U - A kind of novel PTC perforated pipe stake with ribbing - Google Patents
A kind of novel PTC perforated pipe stake with ribbing Download PDFInfo
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- CN209368810U CN209368810U CN201822231977.0U CN201822231977U CN209368810U CN 209368810 U CN209368810 U CN 209368810U CN 201822231977 U CN201822231977 U CN 201822231977U CN 209368810 U CN209368810 U CN 209368810U
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a kind of novel PTC perforated pipe stakes with ribbing, the filtration hole that L is opened up successively is spaced including PTC tubular pole and from stake top to stake bottom, the filtration hole is in same section along 120 ° of stake circumferential direction interval arrangement, equidistantly it is laid with several ribs along the setting of stake length direction the stake week of the PTC tubular pole, the rib is special-shaped protrusion, rib is in triangular pyramid type columnar projections to stake top at stake top 3L/2 node along stake length direction, to the trapezoidal columnar projections in stake bottom, the filtration hole of the utility model pile body setting can effectively reduce soil compaction effect effect；The rib that PTC tubular pole is equally spaced along stake circumferential direction can increase the contact area of stake soil, improve pile side friction to a certain extent, can effectively improve ultimate bearing capacity of single pile；Triangular pyramidal column rib is set apart from stake top 3h/2 pile cutoff along stake length direction, rib section is approximately equilateral triangle at stake top, can effectively reduce the differential settlement of pile body after the completion of pile sinking, improves the safety coefficient of pile foundation engineering construction.
Description
Technical field
The utility model relates to PTC perforated pipe stake technical fields, more particularly to a kind of novel PTC perforated pipe stake with ribbing.
Background technique
In recent years, obvious for soft clay area PTC type tubular pole effect of driving pile phenomenon, it successively has developed unidirectionally to wearing
Perforated pipe stake, it is two-way to be installed with hole tubular pole, it is starlike to being installed with a variety of PTC perforated pipe stakes such as hole tubular pole, can be effectively by it
Reduce the excess pore water pressure of pile sinking generation in pile peripheral earth, improve foundation bearing capacity and obtained certain popularization.
But the excess pore water pressure generated when PTC type tubular pole pile sinking is gradually increased along the increase of depth, and it is above-mentioned
PTC perforated pipe stake body bore size is remained unchanged along stake length direction, is caused unknown close to stake bottom reduction soil compaction effect effect
It is aobvious, and pile body filtration hole easily blocks, and can not play a role well.
Meanwhile filtration hole is arranged in PTC type tubular pile body, reduces tubular pole bearing capacity to a certain extent.Therefore, how to have
While effect ground reduces effect of driving pile influence, guarantee pile sinking quality, improving bearing capacity of pile foundation is art technology research and development people
Member makes great efforts to solve the problems, such as always.
In order to effectively reduce the adverse effect of PTC tubular pole effect of driving pile, and guarantee pile sinking quality, improves pile foundation carrying
Power and pile foundation construction safety coefficient, this just has to take certain measure.
Utility model content
The purpose of this utility model is to provide a kind of novel PTC perforated pipe stakes with ribbing, can improve to a certain extent existing
There is the shortcoming of PTC perforated pipe stake technology, further decrease the adverse effect of effect of driving pile, improves single pile ultimate bearing
Power reduces the differential settlement after the completion of pile sinking, guarantees pile sinking quality.
To achieve the goals above, the utility model adopts the technical scheme that a kind of novel PTC perforated pipe with ribbing
Stake, the filtration hole that L is opened up successively is spaced including PTC tubular pole and from stake top to stake bottom, the filtration hole is in same section along stake
120 ° of circumferential direction interval arrangement, is equidistantly laid with several ribs along the setting of stake length direction, institute the stake week of the PTC tubular pole
Rib is stated as special-shaped protrusion, rib is in triangular pyramidal columnar projections to stake top at stake top 3L/2 node along stake length direction, to
Stake bottom trapezoidal columnar projections, and the height of the triangular pyramidal columnar projections along stake length direction from stake top to apart from stake top 3L/2
Uniformly successively decrease at node, the rib and filtration hole are arranged alternately for 60 ° along stake circumferential direction interval.
It is as above-mentioned technical proposal to further describe:
The filtration hole is gradually increased along the pore size of stake length direction according to d/10 rate of change from stake top to stake bottom,
In, d is drainage bore dia.
It is as above-mentioned technical proposal to further describe:
Triangular pyramidal columnar projections section at stake top is equilateral triangle, and section is isoceles triangle at 3L/2 node
Shape, the rib bottom a length of 2t of diameter of triangular pyramidal columnar projections.
It is as above-mentioned technical proposal to further describe:
The section of the trapezoidal columnar projections is isosceles trapezoid, the rib bottom a length of 2t of diameter of trapezoidal columnar projections, and from 3L/2
Cross sectional shape at node along stake length direction to stake bottom remains unchanged.
The utility model has the beneficial effects that:
The filtration hole of the utility model pile body setting can effectively reduce soil compaction effect effect；Filtration hole is from stake top to stake
Bottom is gradually increased along stake length direction pore size by the rate of change of d/10, can preferably inhibit the soil compaction of pile peripheral earth depths
Effect effect；The rib that PTC tubular pole is equally spaced along stake circumferential direction can increase the contact area of stake soil, to a certain extent
Pile side friction is improved, ultimate bearing capacity of single pile can be effectively improved；Along stake length direction apart from stake top 3h/2 pile cutoff setting three
Pyramid column rib, rib section is approximately equilateral triangle at stake top, and pile body is not after the completion of capable of effectively reducing pile sinking
Uniform settlement improves the safety coefficient of pile foundation engineering construction.
Detailed description of the invention
Fig. 1 be the utility model proposes the novel PTC perforated pipe stake triangular pyramidal columnar projections with ribbing of one kind cross section
Structural schematic diagram；
Fig. 2 is the cross-sectional structure schematic diagram of trapezoidal columnar projections in the utility model；
Fig. 3 is the schematic diagram of the section structure of A-A in Fig. 1.
Marginal data:
1-PTC tubular pole, 2- filtration hole, 3- triangular pyramidal columnar projections, the trapezoidal columnar projections of 4-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, a kind of novel PTC perforated pipe stake with ribbing, including PTC tubular pole 1 and from stake top to stake bottom successively
Every the filtration hole 2 that L is opened up, filtration hole 2 is in same section along 120 ° of stake circumferential direction interval arrangement, and PTC tubular pole is during the pile driving process
The super quiet interstitial hydraulic pressure moment generated has little time to dissipate, and the filtration hole 2 that can be arranged by pile body enters inside lumen, effectively
The effect for reducing soil compaction effect is equidistantly laid with several ribs along the setting of stake length direction, rib the stake week of PTC tubular pole 1
To be special-shaped raised, as shown in figure 3, rib is in triangular pyramidal columnar projections to stake top at stake top 3L/2 node along stake length direction
3, to the trapezoidal columnar projections 4 in stake bottom, and the height of triangular pyramidal columnar projections 3 along stake length direction from stake top to apart from stake top
Uniformly successively decrease at 3L/2 node, it is intended that several ribs are arranged on pile body, one contributes to increase the contact surface of stake soil
Product improves the frictional resistance of stake side to a certain extent, and another aspect rib is arranged to triangular pyramidal columnar projections 3 and trapezoidal column is convex
The abnormally-structured of 4 combinations is played, there is the slope surface slowed down downwards close to triangular pyramidal columnar projections 3 at stake top, slowly transit to ladder
The structure of shape columnar projections 4 both will not influence piling construction, can also effectively reduce the differential settlement of pile body after the completion of pile sinking,
The safety coefficient of pile foundation engineering construction is improved, rib is arranged alternately for 60 ° with filtration hole 2 along stake circumferential direction interval.
Embodiment 1, filtration hole 2 gradually increase along the pore size of stake length direction according to d/10 rate of change from stake top to stake bottom
Greatly, wherein d is drainage bore dia, and due to more settling toward ground end, the excess pore water pressure that pile driving process generates is bigger, will be filtered
Water hole 2 is arranged to the aperture being sequentially increased, and can effectively inhibit the soil compaction effect effect of pile peripheral earth depths.
Embodiment 2, the section at stake top of triangular pyramidal columnar projections 3 are equilateral triangle, are cut at side length 2t, 3L/2 node
Face is isosceles triangle, the rib bottom a length of 2t of diameter of triangular pyramidal columnar projections 3.
Embodiment 3, the section of trapezoidal columnar projections 4 are isosceles trapezoid, the rib bottom a length of 2t of diameter of trapezoidal columnar projections 4, rib
Thickness and rib top length are t, and the cross sectional shape from 3L/2 node along stake length direction to stake bottom remains unchanged.
Novel PTC perforated pipe stake with ribbing in the utility model only need to use special PTC perforated pipe stake steel with ribbing in factory
Mould produces as required, method compared with perforated pipe stake production technology.In view of pile lining aperture generates stress concentration phenomenon, the structure
Part site operation uses static pressure pile-sinking mode, must not use hammer piling and pile vibrosinking mode.In pile driving process, tubular pole pile lining
Several holes of upper design allow the interior pore water generated of pile peripheral earth to flow into lumen by side chamber, then extract row with micro pump
Out, the moisture content for reducing pile peripheral earth improves the shearing strength of the soil body, enhances foundation bearing capacity, effectively reduces soil compaction during pile driving
Influence of the effect to surrounding buildings environment.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (4)
1. a kind of novel PTC perforated pipe stake with ribbing, is successively spaced the filter that L is opened up including PTC tubular pole (1) and from stake top to stake bottom
Water hole (2), which is characterized in that the filtration hole (2) is in same section along 120 ° of stake circumferential direction interval arrangement, the PTC tubular pole
(1) several ribs along the setting of stake length direction are equidistantly laid with stake week, the rib is special-shaped protrusion, and rib is long along stake
Direction is in triangular pyramidal columnar projections (3) to stake top at stake top 3L/2 node, to the trapezoidal columnar projections in stake bottom (4), and
The height of the triangular pyramidal columnar projections (3) is uniformly successively decreased along stake length direction from stake top at stake top 3L/2 node, institute
It states rib and is arranged alternately for 60 ° with filtration hole (2) along stake circumferential direction interval.
2. the novel PTC perforated pipe stake with ribbing of one kind according to claim 1, which is characterized in that the filtration hole (2) is from stake
The pore size that stake bottom is pushed up along stake length direction is gradually increased according to d/10 rate of change, wherein d is drainage bore dia.
3. the novel PTC perforated pipe stake with ribbing of one kind according to claim 1, which is characterized in that the triangular pyramidal column
Raised (3) section at stake top is equilateral triangle, and section is isosceles triangle, triangular pyramidal columnar projections (3) at 3L/2 node
The rib bottom a length of 2t of diameter.
4. the novel PTC perforated pipe stake with ribbing of one kind according to claim 1, which is characterized in that the trapezoidal columnar projections
(4) section be isosceles trapezoid, the rib bottom a length of 2t of diameter of trapezoidal columnar projections (4), and from 3L/2 node along stake length direction extremely
The cross sectional shape at stake bottom remains unchanged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822231977.0U CN209368810U (en) | 2018-12-28 | 2018-12-28 | A kind of novel PTC perforated pipe stake with ribbing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822231977.0U CN209368810U (en) | 2018-12-28 | 2018-12-28 | A kind of novel PTC perforated pipe stake with ribbing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209368810U true CN209368810U (en) | 2019-09-10 |
Family
ID=67827969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822231977.0U Active CN209368810U (en) | 2018-12-28 | 2018-12-28 | A kind of novel PTC perforated pipe stake with ribbing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209368810U (en) |
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2018
- 2018-12-28 CN CN201822231977.0U patent/CN209368810U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.567, Shanhu Road, Shushan District, Hefei City, Anhui Province 230000 Patentee after: Anhui Construction Engineering Testing Technology Group Co.,Ltd. Patentee after: ANHUI INSTITUTE OF BUILDING RESEARCH & DESIGN Address before: No.567, Shanhu Road, Shushan District, Hefei City, Anhui Province 230000 Patentee before: QUALITY OF CONTRUCTION IN ANHUI PROVINCE SUPERVISION AND INSPECTION STATION Patentee before: ANHUI INSTITUTE OF BUILDING RESEARCH & DESIGN |
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| CP01 | Change in the name or title of a patent holder |