CN106120715B - A kind of fold stake and its construction method - Google Patents
A kind of fold stake and its construction method Download PDFInfo
- Publication number
- CN106120715B CN106120715B CN201610708956.6A CN201610708956A CN106120715B CN 106120715 B CN106120715 B CN 106120715B CN 201610708956 A CN201610708956 A CN 201610708956A CN 106120715 B CN106120715 B CN 106120715B
- Authority
- CN
- China
- Prior art keywords
- stake
- fold
- conductive plastics
- drain bar
- plastics drain
- 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.)
- Active
Links
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
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
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)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a kind of fold stake and its construction method, have on the outside of fold stake and be recessed inward at 4, recess fold, boring, fold stake recess is covered in using conductive plastics drain bar of the fold texture as fold stake recess, it is covered in again with four pieces of steel discs above conductive plastics drain bar, certain draining space is stayed between steel disc the right and left and stake, while the place for also protruding conductive plastics drain bar just contacts with steel disc；After stake is pressed into projected depth, consolidation by electroosmosis is carried out so that be covered in four on the outside of fold stake steel discs and fully corroded, improve stake pedosphere surface intensity, while also promote pile peripheral earth intensity to improve.The contact area of pile body and soil can also be greatly increased by carrying out Soft Ground using the fold stake and the construction method, so as to improve pile side friction；The highlight of fold stake fold can provide bigger bearing capacity；Fold stake lower end recess is expanded outward, and fold stake stake end can be made to provide bigger bearing capacity.
Description
Technical field
The invention belongs to Base Consolidation Engineering field, more particularly to a kind of fold stake and its construction method, suitable for saturation
Soft Ground is constructed.
Background technology
With modernization construction, the scope of China's engineering construction is more and more extensive, quantity is more and more huger.China southeast edge
Extra large such as Shanghai, Hangzhou, Ningbo, Wenzhou, Foochow, Xiamen, Shenzhen and Guangzhou coastal area, and the inland basin such as Kunming and Wuhan
Area, all it is the very flourishing area of China's economy, various engineering constructions are especially more, but these regional soil properties are mainly weak soil.It is soft
Soil has the characteristics that water content is high, natural void ratio is big, compressibility is high, permeability is small, shearing strength is low, the coefficient of consolidation is small, just
It is due to these shortcomings, soft soil foundation is run into engineering to be handled.It can be run into Practical Project various
Soft Ground problem is, it is necessary to use different reinforcement of soft soil methods.
Understand in summary, constantly invent, improve the method for being applied to various Soft Grounds, so as to further improve
Construction quality, it is very necessary to create bigger economic benefit.A kind of fold stake and its construction method be exactly according to this requirement,
Handle foundation in saturated soft soil and propose.
The content of the invention
Pointedly to solve the above problems, this project proposes a kind of fold stake and its construction method, and fold stake is in pile
During can promote the dissipation of interstitial hydraulic pressure, effectively prevent from producing floating stake, broken pile in formation of pile, it is complete beneficial to pile sinking pile sinking
Into rear recovery of bearing capacity, be covered in fold stake surface steel disc be corroded after improve Pile Soil boundary strength, later stage electric osmose can promote
Enter the raising of pile peripheral earth intensity and the raising of pile body side friction and the raising of stake end bottom bearing.For foundation in saturated soft soil processing
Engineering bring great economic benefit.
In order to realize foregoing invention purpose, present invention employs following technical scheme：
A kind of fold stake, the fold stake main body are Prefabricated hollow pile, and Prefabricated hollow pile uniformly sets 4 vertically
Groove, the outer surfaces of 4 grooves of fold stake is respectively overlay in 4 pieces of conductive plastics drain bars, with the close phase of fluted external surface
Patch, is respectively overlay on 4 pieces of conductive plastics drain bars with four pieces of steel discs, is separated by certain spacing and is fixed with steel loop, final whole
Fold stake is in hollow cylindrical.
The steel disc is circular arc strip, and radian is 50 °.
The outer surface of the Prefabricated hollow pile groove is several semicircle cambered surfaces in vertical direction head and the tail connection composition.
The steel loop diameter is equal to fold stake stake footpath, and spacing is 1-2 times of fold stake stake footpath.
The conductive plastics drain bar is circular arc strip, and radian is 60 °, is closely attached to Prefabricated hollow pile groove.
A kind of construction method of fold stake, comprises the following steps：
1）Prefabricated fold stake：According to design requirement factory process Prefabricated hollow pile, conductive plastics drain bar is closely affixed on
Prefabricated hollow pile groove, steel disc is covered on conductive plastics drain bar, mutually fixed across a certain distance using steel loop；
2）Prepare before construction：Place is peaceful, and machine-walking track laying, machinery is marched into the arena；
3）Fold stake is implanted into：Fold stake is implanted to the soil body depth of design, avoids foreign matter from entering conductive plastics drain bar；
4）Consolidation by electroosmosis：Conductive plastics drain bar is connected by insulated conductor, by the conductive plastics drain bar on a campshed
DC power anode is connected by same root wire, as anode；In every fold stake surrounding, four blocks of separate conductive plastics are set
Drain bar, each piece of independent conductive plastics drain bar face one piece of conductive plastics drain bar in fold stake, passed through respectively
A piece wire connects DC power cathode, as negative electrode, carries out consolidation by electroosmosis；
5）Construction is completed：Electric osmose reinforcement is persistently carried out, the steel disc for being covered in fold stake surface is constantly corroded, saturation
Pore water in soft soil foundation is constantly away from fold stake, the continuous self-compaction of fold stake pile peripheral earth, until ground meets bearing capacity
Design requirement, then carry out successive projects construction.
The invention has the characteristics that and beneficial effect：
1st, the present invention uses fold stake, due to the fold stake characteristic of itself, can largely save concrete during stake processed
Dosage.
2nd, the present invention is closely attached to fold stake recess using conductive plastics drain bar, in Plastic conductive drain bar overlying
One layer of steel disc has been covered, has made hollow cylinder of the fold stake integrally in rule, the resistance for the soil body being subject to during pile sinking can be reduced, it is heavy to improve
Stake speed.
3rd, the present invention extruding force when pore water in saturated soft soil is due to pile sinking, constantly passes through modeling in pile driving process
Expect drain bar up draining, promote dissipation of excess pore-water pressure, so as to prevent floating stake, the generation of pile breaking phenomenon.
4th, the present invention uses fold stake, and there are 4 vertical grooves in outside, and fluted external surface is several semi arches kept man of a noblewoman's tail
Connection composition, under electroosmosis, the steel disc in outside produces electrochemical corrosion, the conduction on the soil body and fold stake fluted external surface
Plastic draining board fully contacts, and so as to increase the contact area of pile body and the soil body, improves frictional force in side-pile, while improve pleat
The bearing capacity for stake fluted external surface semicircle cambered surface of wrinkling.
5th, the present invention uses fold stake, and fold stake main body is Prefabricated hollow pile, can increase the contact surface of pile body and the soil body
Product, further increase the frictional force of pile body.
6th, the present invention uses consolidation by electroosmosis, promotes the pore water in saturated soft soil to promote pile peripheral earth intensity away from pile body
Improve, so as to further improve bearing capacity of pile tip, improve the bearing capacity of fold stake fluted external surface semicircle cambered surface, improve stake side and rub
Wipe power.
Brief description of the drawings
Fig. 1 is fold stake profile
Fig. 2 fold stake sectional views
Electric osmose reinforcing soft ground System planes layout drawing is combined in the stake of Fig. 3 folds
Fig. 4 fold stake stereograms
Description of reference numerals：Prefabricated hollow pile 1, conductive plastics drain bar 2, steel disc 3, steel loop 4, Prefabricated hollow pile hollow position
5th, wire 6, dc source 7, fold stake 8, separate conductive plastic draining board 9.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Diagram and specific embodiment are closed, the present invention is expanded on further.
The present invention is used for foundation in saturated soft soil processing construction.
As shown in Figure 1, Figure 2 and Figure 4, the main body of fold stake 8 is Prefabricated hollow pile 1, and Prefabricated hollow pile 1 is uniformly set
4 vertical grooves, fluted external surface are several semi arches kept man of a noblewoman tail connection composition, and the radian of each groove is 60 °.Using
Conductive plastics drain bar 2 is closely covered in the groove of fold stake 8, is covered in four pieces of steel discs 3 on conductive plastics drain bar 2, phase
Fixed across a certain distance using steel loop 4, whole fold stake 8 is in hollow cylinder.Shown in Fig. 3, conductive plastics drain bar 2 passes through insulation
Wire 6 connects, and the conductive plastics drain bar 2 on a campshed is connected into the positive pole of dc source 7 by same root wire 6, as sun
Pole；Four pieces of independent plastic draining boards 9 are set in the every surrounding of fold stake 8, the negative pole of dc source 7 is connected by a wire 6, made
For negative electrode, consolidation by electroosmosis is carried out.
Example：Construct certain foundation in saturated soft soil processing engineering a diameter of 1000mm in China and foreign countries fold stake 8.
Scene should first process overall diameter 1000mm Prefabricated hollow pile 1 before going into operation, Prefabricated hollow pile 1 is uniformly set
4 vertical grooves, fluted external surface are several semi arches kept man of a noblewoman tail connection composition.Groove bosom is apart from Prefabricated hollow pile
1 outward flange 125mm, radian are 60 °, a diameter of 220mm of the semicircle cambered surface of fluted external surface, and Prefabricated hollow pile hollow position 5 is straight
Footpath is 250mm；Prepare conductive plastics drain bar 2,60 ° of its thickness 5mm, radian；Prepare the steel disc 3 of circular arc strip-like appearance, radian
For 50 °, thickness is thickness 10mm；Prepare a diameter of 1000mm steel loop 4.
On deck after material, conductive plastics drain bar 2 is close to the groove of Prefabricated hollow pile 1, then steel disc 3 is covered
Cover on conductive plastics drain bar 2, the right and left of steel disc 3 will respectively stay 5 ° of space between Prefabricated hollow pile 1, finally be separated by
500mm spacing is fixed using steel loop 4.
During Specific construction, according to following construction procedures：
1）Prefabricated fold stake：According to design requirement factory process Prefabricated hollow pile 1, conductive plastics drain bar 2 is closely pasted
In the groove of Prefabricated hollow pile 1, steel disc 3 is covered on conductive plastics drain bar 2, mutually fixed across a certain distance using steel loop 4；
2）Prepare before construction：Place is peaceful, and machine-walking track laying, machinery is marched into the arena；
3）Fold stake is implanted into：Fold stake is implanted to the soil body depth of design, avoids foreign matter from entering conductive plastics drain bar
2。
4）Consolidation by electroosmosis：Conductive plastics drain bar 2 is connected by insulated conductor 6, by the conductive plastics draining on a campshed
Plate 2 connects the positive pole of dc source 7 by same root wire 6, as anode；Four pieces are set in the every surrounding of fold stake 8 independently to lead
Electric plastic draining board 9, each piece of independent conductive plastics drain bar 9 face each piece of conductive plastics draining in fold stake 8
Plate 2, the negative pole of dc source 7 is connected by a wire 6, as negative electrode, carry out consolidation by electroosmosis.
5）Construction is completed：Electric osmose reinforcement is persistently carried out, the steel disc 3 for being covered in the surface of fold stake 8 is constantly corroded, and satisfies
With the pore water in soft soil foundation constantly away from fold stake 8, the continuous self-compaction of pile peripheral earth, until ground meets Design of Bearing Capacity
It is required that then carry out successive projects construction.
Claims (4)
- A kind of 1. fold stake, it is characterised in that：The fold stake（8）Main body is Prefabricated hollow pile（1）, Prefabricated hollow pile（1）Table Face equably sets 4 vertical grooves, with 4 pieces of conductive plastics drain bars（2）It is respectively overlay in the appearance of 4 grooves of fold stake Face, closely it is affixed with fluted external surface, with four pieces of steel discs（3）It is respectively overlay in 4 pieces of conductive plastics drain bars（2）On, it is separated by one Fixed spacing steel loop（4）It is fixed, final whole fold stake（8）In hollow cylindrical；The Prefabricated hollow pile（1）Outside groove Surface is several semicircle cambered surfaces in vertical direction head and the tail connection composition；The steel loop（4）Diameter is equal to fold stake（8）Stake footpath, Spacing is fold stake（8）1-2 times of stake footpath.
- 2. fold stake according to claim 1, it is characterised in that：The steel disc（3）For circular arc strip, radian is 50 °.
- 3. fold stake according to claim 1, it is characterised in that：The conductive plastics drain bar（2）For circular arc strip, Radian is 60 °, is closely attached to Prefabricated hollow pile（1）Groove.
- 4. a kind of construction method of fold stake, it is characterised in that comprise the following steps：1）Prefabricated fold stake：According to design requirement factory process Prefabricated hollow pile（1）, by conductive plastics drain bar（2）Close patch In Prefabricated hollow pile（1）Groove, by steel disc（3）It is covered in conductive plastics drain bar（2）On, mutually steel loop is used across a certain distance （4）It is fixed；2）Prepare before construction：Place is peaceful, and machine-walking track laying, machinery is marched into the arena；3）Fold stake is implanted into：By fold stake（8）The soil body depth of design is implanted to, avoids foreign matter from entering conductive plastics drain bar （2）；4）Consolidation by electroosmosis：Conductive plastics drain bar（2）Pass through insulated conductor（6）Connection, by the conductive plastics draining on a campshed Plate（2）Pass through same root wire（6）DC power anode is connected, as anode；In every fold stake（8）Surrounding sets four pieces solely Vertical conductive plastics drain bar（9）, each piece of independent conductive plastics drain bar（9）Fold stake is faced respectively（8）On one piece Conductive plastics drain bar（2）, pass through a wire（6）Connect dc source（7）Negative pole, as negative electrode, carry out consolidation by electroosmosis；5）Construction is completed：Electric osmose reinforcement is persistently carried out, is covered in fold stake（8）The steel disc on surface（3）Constantly it is corroded, satisfies With the pore water in soft soil foundation constantly away from fold stake（8）, fold stake（8）The continuous self-compaction of pile peripheral earth, until ground is expired Sufficient Design of Bearing Capacity requirement, then carry out successive projects construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610708956.6A CN106120715B (en) | 2016-08-22 | 2016-08-22 | A kind of fold stake and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610708956.6A CN106120715B (en) | 2016-08-22 | 2016-08-22 | A kind of fold stake and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106120715A CN106120715A (en) | 2016-11-16 |
| CN106120715B true CN106120715B (en) | 2017-12-19 |
Family
ID=57273816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610708956.6A Active CN106120715B (en) | 2016-08-22 | 2016-08-22 | A kind of fold stake and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106120715B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836211B (en) * | 2017-04-06 | 2022-04-08 | 安徽理工大学 | Prefabricated club-footed reducing pile for treating soft soil foundation and construction method thereof |
| CN109881669B (en) * | 2019-03-11 | 2023-09-19 | 浙江大学城市学院 | Plastic sleeve energy pile structure and construction method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07286323A (en) * | 1994-04-18 | 1995-10-31 | Shimizu Corp | Pile structure |
| CN105297704B (en) * | 2015-11-05 | 2017-03-29 | 浙江大学城市学院 | A kind of electric osmose strengthens stake reinforcing flexible foundation device and construction method |
| CN205917688U (en) * | 2016-08-22 | 2017-02-01 | 浙江大学城市学院 | Fold stake |
-
2016
- 2016-08-22 CN CN201610708956.6A patent/CN106120715B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106120715A (en) | 2016-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205917688U (en) | Fold stake | |
| CN102704463B (en) | Vacuum pre-compaction and electro-osmosis combined reinforcing device and method for muck foundation | |
| CN106192984B (en) | The reinforcing soft soil roadbed system of ring tube-in-tube pile joint electric osmose and construction method | |
| CN203547773U (en) | Channel combined support structure suitable for slowly inclined stratified rock mass | |
| CN106120715B (en) | A kind of fold stake and its construction method | |
| CN102900067B (en) | Processing method for reinforcing soft clay ground through vacuum preloading in combination with electro-osmosis method | |
| CN105672064B (en) | A kind of high-speed railway subgrade cable trough and shoulder protector construction method | |
| CN202644338U (en) | Ecological water holding paving brick | |
| CN203654563U (en) | Bidirectional composite floor slab with cross-shaped ribs | |
| CN205591066U (en) | Fine grained soil is received sloping embankment and is filled structure | |
| CN109811759A (en) | Faradaic reaction stake and preparation method thereof | |
| CN204356606U (en) | The light-duty road structure in abrupt slope | |
| CN203654317U (en) | Guide wall structure of basement exterior wall | |
| CN203007773U (en) | Outdoor drainage floor tile | |
| CN102330398A (en) | High-speed railway roadbed structure of unsaturated soil foundation in plain region | |
| CN202187253U (en) | Roadbed structure of high-speed railway on unsaturated soil foundation in flat area | |
| CN205591239U (en) | Cofferdam structure | |
| CN204457797U (en) | A kind of top longitudinal beam structure of subway station | |
| CN205776405U (en) | A kind of ground brick | |
| CN205917687U (en) | A bag club -footed pile for electric osmose reinforcement soft soil foundation | |
| CN202482897U (en) | Concrete structure | |
| CN204282302U (en) | A kind of arch dam induced module block structure | |
| CN206189473U (en) | A horizontal dilatation structure for landfill | |
| CN206337554U (en) | A kind of drain bar structure | |
| CN205223769U (en) | Structure is restoreed fast to mountain area slope road bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |