CN106836212A - A kind of pile extension end plate and pile extension technology - Google Patents
A kind of pile extension end plate and pile extension technology Download PDFInfo
- Publication number
- CN106836212A CN106836212A CN201710197759.7A CN201710197759A CN106836212A CN 106836212 A CN106836212 A CN 106836212A CN 201710197759 A CN201710197759 A CN 201710197759A CN 106836212 A CN106836212 A CN 106836212A
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- China
- Prior art keywords
- pile extension
- pile
- stake
- end plate
- extension
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- 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.)
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- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 239000013521 mastic Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 239000004567 concrete Substances 0.000 abstract description 5
- 239000002002 slurry Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011178 precast concrete Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010008 shearing Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000010410 reperfusion Effects 0.000 description 1
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
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
Landscapes
- 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 invention belongs to precast concrete pile technical field of construction, a kind of pile extension end plate and pile extension technology are disclosed, end plate shape and construction technology are as shown in the figure.The prefabricated stake long of armored concrete, because by traffic condition and pile driving frame height limitation, being broken generally into several sections of making, merogenesis is squeezed into, live pile extension.Traditional pile extension mode is by welding pile extension, flange pile extension method, anchor slurry processes pile extension etc..More traditional pile extension end plate is compared with pile extension technology, the beneficial effects of the invention are as follows feature is strong, good stability, simple installation are quick and pile extension after the completion of its every mechanical property be significantly increased.
Description
Technical field
The invention belongs to precast concrete pile technical field of construction, and in particular to a kind of pile extension end plate and pile extension technology.
Background technology
The prefabricated stake long of armored concrete, because by traffic condition and pile driving frame height limitation, being broken generally into several sections of making, merogenesis
Squeeze into, live pile extension.Traditional pile extension mode is by welding pile extension, flange pile extension method, anchor slurry processes pile extension etc..
But welding pile extension makes pile body there is plane of weakness, because at pile extension plane, acting on the power of pile body completely by four
Root angle steel bears, the pile extension position destructible under external action.Flange pile extension causes pile body to there is weak section, due to conventional flange
It is connected by screw bolts, the flange size where bolt between plane and stake end is small compared with shaft, pile body sectional dimension mutation at this, from
Body drag die-offs, the destructible under some geologic processes.Anchor slurry processes pile extension is disadvantageous in that：First, fall behind under the stake of upper section
Reperfu- sion Binder Materials may cause the air in anchor hole can not to discharge into, thus dowel can not be reached with the connection of anchor hole it is expected strong
Degree；Second, at pile extension face, the institute of pile body effectively is born by four dowels, and the bending resistance of stake, shearing resistance and anti-twisting property are dashed forward at the face
Drop, is destructible face.
It is prefabricated that Chinese patent CN105421448A and Chinese patent CN104343117A provide a kind of double-wall corrugated pipe respectively
Tubular pile splicing structure and a kind of concrete precast pipe pile splicing device, their common drawback is：The cross-sectional area at pile extension position
More than stake area in itself, this will cause the soil body more than pile extension position can not to have good fixation to stake or even sky occur
Gap, even if insert backfill causing stake to be fixed well as the passive earth pressure of stake outer surface is too small, from
And pile body may be inclined under external force, cause depression of bearing force；Chinese patent CN105064361A provides a kind of hammering
Preformed pile connecting method, more traditional pile extension method improves to some extent, but tensile strength is less than traditional pile extension method, and other performances are also not
And the present invention；Chinese patent CN203344175U provides a kind of pile extension attachment means, and its shortcoming is：Process-intensive, connects numerous
Trivial, pile extension position globality is not enough, causes the mechanical property at its pile extension poor；Chinese patent CN102383423A and China are special
Sharp CN20265825U provides a kind of preformed pile connecting structure, and its shortcoming is：All external actions of the pile body in addition to excess pressure
All born by the dowel action of two bolts, one side bolt destructible, on the other hand through the concrete region of bolt
Easily destroy；Chinese patent CN205188954U provides a kind of new armored concrete precast square pile pile splicing structure, its
Essence is that traditional welding pile extension and anchor slurry processes pile extension are combined and are improved, and its properties is significantly carried
Height, close to but not as good as the present invention；Chinese patent CN203904981U provides a kind of inclined mouth type rectangle support pile pile extension built-in fitting, its
Essence is to be improved traditional welding pile extension, the performance of stake is slightly had raising, its shortcoming and traditional welding pile extension
It is similar：Pile extension plane is pile body plane of weakness, and the power for acting on pile body is born by four angle steel and connection steel plate completely, is made in outside
With lower pile extension position destructible.
The content of the invention
It is an object of the invention to solve above technical problem, there is provided one kind have superior anti-tensile, compressive, bending, cut with it is antitorque
The pile extension end plate and pile extension technology of performance.
To achieve the above object, technical scheme is as follows：
1. a kind of pile extension end plate, it is characterised in that：Upper head plate is welded with cage bar and stirrup, and bottom plate is welded with cage bar, on
End plate is identical with lower end plate shape, and pre-buried direction is consistent, is shaped as square or rectangle with cross recess, as shown in Figure 1.
A kind of pile extension technology, it is characterised in that：Comprise the following steps：
A. pile follower：By it is lower section stake get at below ground certain depth, preferably taken during piling it is small fall away from so as to stake energy
It is enough normally to sink in soil, the normal injection again after certain depth is squeezed into stake；
B. to stake：The stake of upper section is sling with pile frame, the lower section pile crown of alignment, with calibration perpendicularity, centerline deviation must not be big
In 10mm, node bending is lost height and cannot be greater than long 0.1% of stake；
C. injecting glue：The sulphur glue of fusing is injected under section stake gap up and down is adjusted into appropriate location backward in the anchor hole of section stake
Mud, injection rate is slightly larger than (HR2-hr2) π, in formula：π is pi, and H and R is respectively the depth and radius of anchor hole, and h and r distinguishes
The length and radius of end plate are stretched out for dowel；2.5 times of a diameter of dowel diameter of anchor hole；
D. pile extension：Section stake is set to fall；
E. adjust：Plan-position and perpendicularity are checked, if perpendicularity deviation is larger, asbestos lining can be used；
F. weld：Diagonal symmetrical welding, weld seam is taken to answer continuous and full；
G. clear up：Knock out welding slag, cleaning pile extension region foreign matter；
I. antirust：In pile extension region particularly commissure brush antirust paint；
K. drive piles.
Due to using as above technical scheme, the beneficial effects of the invention are as follows：
1. tip plate configurations of the invention are simple practical, because its presence, the globality of upper pile body and lower pile body
Significantly increase；
2. pile extension technology of the invention is avoided mentioning technical barrier in background technology, and the pile body obtained using this technique is neat
Tool tension, resistance to compression, bending resistance, shearing resistance and torsional property.
Brief description of the drawings
Fig. 1 is tip plate configurations schematic diagram of the invention；
Fig. 2 is upper pile body structure schematic diagram of the invention；
Fig. 3 is lower pile body structure schematic diagram of the invention；
Fig. 4 is pile body connection diagram of the invention；
Fig. 5 is pile extension technology flow chart of the invention.
1. upper head plate in figure, 2. bottom plate, 3. on save stake, 4. lower section stake, 5. anchor hole, 6. dowel.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
The embodiment of the present invention is：
Referring to accompanying drawing 1, Fig. 2, Fig. 3 and Fig. 4, a kind of pile extension end plate, end plate shape is as shown in Figure 1；
A kind of pile extension technology, it is characterised in that：Comprise the following steps：
A. pile follower：By it is lower section stake 4 get at below ground certain depth, preferably taken during piling it is small fall away from so as to stake
Normally can sink in soil, the normal injection again after certain depth is squeezed into stake；
B. to stake：The stake 3 of upper section is sling with pile frame, the lower section stake 4 of alignment, with calibration perpendicularity, centerline deviation must not
More than 10mm, node bending is lost height and cannot be greater than long 0.1% of stake；
C. injecting glue：Injection is molten in the anchor hole 5 of section stake 4 under the stake 3 of upper section and lower section stake 4 gap are adjusted into appropriate location backward
The sulphide mastic of change, injection rate is slightly larger than (HR2-hr2) π, in formula：π is pi, and H and R is respectively the depth and half of anchor hole 5
Footpath, h and r are respectively the length and radius that dowel 6 stretches out end plate；2.5 times of a diameter of diameter of dowel 6 of anchor hole 5；
D. pile extension：Section stake 3 is set to fall；
E. adjust：Plan-position and perpendicularity are checked, if perpendicularity deviation is larger, asbestos lining can be used；
F. weld：Diagonal symmetrical welding, weld seam is taken to answer continuous and full；
G. clear up：Knock out welding slag, cleaning pile extension region foreign matter；
I. antirust：In pile extension region particularly commissure brush antirust paint；
K. drive piles.
It is only the preferred embodiments of the invention that the above tells embodiment, only illustrates that technology design of the invention and structure are special
Levy, it is therefore intended that person skilled can be implemented according to this, but above said content is not intended to limit protection scope of the present invention,
Therefore the change that all shapes according to the present invention, principle are done, all should cover within the scope of the present invention.
Claims (2)
1. a kind of pile extension end plate, it is characterised in that：Upper head plate (1) is welded with cage bar and stirrup, and bottom plate (2) is welded with cage bar,
Upper head plate (1) is identical with bottom plate (2) shape, and pre-buried direction is consistent, is shaped as square or rectangle with cross recess.
2. a kind of pile extension technology, it is characterised in that：Comprise the following steps：
A. pile follower：By it is lower section stake (4) get at below ground certain depth, preferably taken during piling it is small fall away from so as to stake energy
It is enough normally to sink in soil, the normal injection again after certain depth is squeezed into stake；
B. to stake：Upper section stake (3) is sling with pile frame, lower section stake (4) head of alignment, with calibration perpendicularity, centerline deviation must not
More than 10mm, node bending is lost height and cannot be greater than long 0.1% of stake；
C. injecting glue：Upper section stake (3) and lower section stake (4) gap are adjusted to the appropriate location middle note of the lower anchor hole (5) for saving stake (4) backward
Enter the sulphide mastic of fusing, injection rate is slightly larger than (HR2-hr2) π, in formula：π is pi, and H and R is respectively the depth of anchor hole (5)
Degree and radius, h and r are respectively the length and radius that dowel (6) stretches out end plate；The 2.5 of anchor hole (5) a diameter of dowel (6) diameter
Times；
D. pile extension：Section stake (3) is set to fall；
E. adjust：Plan-position and perpendicularity are checked, if perpendicularity deviation is larger, asbestos lining can be used；
F. weld：Diagonal symmetrical welding, weld seam is taken to answer continuous and full；
G. clear up：Knock out welding slag, cleaning pile extension region foreign matter；
I. antirust：In pile extension region particularly commissure brush antirust paint；
K. drive piles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197759.7A CN106836212A (en) | 2017-03-29 | 2017-03-29 | A kind of pile extension end plate and pile extension technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197759.7A CN106836212A (en) | 2017-03-29 | 2017-03-29 | A kind of pile extension end plate and pile extension technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106836212A true CN106836212A (en) | 2017-06-13 |
Family
ID=59141146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710197759.7A Pending CN106836212A (en) | 2017-03-29 | 2017-03-29 | A kind of pile extension end plate and pile extension technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106836212A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193674A (en) * | 2017-12-28 | 2018-06-22 | 天津宝丰建材有限公司 | A kind of slip casting connection prestressed concrete uplift pile and its construction method |
| CN108661045A (en) * | 2018-07-20 | 2018-10-16 | 东北大学 | A kind of prefabricated GFRP pipe concretes spliced pile |
| CN110016913A (en) * | 2019-05-23 | 2019-07-16 | 青岛理工大学 | Meshing type tubular pile quick joint structure |
| CN110080207A (en) * | 2019-04-29 | 2019-08-02 | 山东大学 | A kind of assembled steel tubular pole connector and application method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1121883A (en) * | 1997-07-07 | 1999-01-26 | Tanaka Shokai:Kk | Joining member for rods and its coupling ring |
| CN202416300U (en) * | 2011-12-23 | 2012-09-05 | 上海中技桩业股份有限公司 | Quick coupling of prefabricated concrete pile |
| CN103541354A (en) * | 2012-10-08 | 2014-01-29 | 王志财 | Concrete pile connecting device |
-
2017
- 2017-03-29 CN CN201710197759.7A patent/CN106836212A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1121883A (en) * | 1997-07-07 | 1999-01-26 | Tanaka Shokai:Kk | Joining member for rods and its coupling ring |
| CN202416300U (en) * | 2011-12-23 | 2012-09-05 | 上海中技桩业股份有限公司 | Quick coupling of prefabricated concrete pile |
| CN103541354A (en) * | 2012-10-08 | 2014-01-29 | 王志财 | Concrete pile connecting device |
Non-Patent Citations (1)
| Title |
|---|
| 王士川: "《施工技术》", 31 January 2000, 冶金工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193674A (en) * | 2017-12-28 | 2018-06-22 | 天津宝丰建材有限公司 | A kind of slip casting connection prestressed concrete uplift pile and its construction method |
| CN108661045A (en) * | 2018-07-20 | 2018-10-16 | 东北大学 | A kind of prefabricated GFRP pipe concretes spliced pile |
| CN108661045B (en) * | 2018-07-20 | 2023-11-24 | 东北大学 | Precast GFRP pipe concrete spliced pile |
| CN110080207A (en) * | 2019-04-29 | 2019-08-02 | 山东大学 | A kind of assembled steel tubular pole connector and application method |
| CN110016913A (en) * | 2019-05-23 | 2019-07-16 | 青岛理工大学 | Meshing type tubular pile quick joint structure |
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| PB01 | Publication | ||
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Application publication date: 20170613 |