CN204000851U - The stake of a kind of outsourcing water permeability concrete reinforced pipe gravel slip-casting - Google Patents
The stake of a kind of outsourcing water permeability concrete reinforced pipe gravel slip-casting Download PDFInfo
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- CN204000851U CN204000851U CN201420403517.0U CN201420403517U CN204000851U CN 204000851 U CN204000851 U CN 204000851U CN 201420403517 U CN201420403517 U CN 201420403517U CN 204000851 U CN204000851 U CN 204000851U
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- prefabricated tubular
- pile
- tubular pile
- stake
- water permeability
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Abstract
The utility model relates to the stake of a kind of outsourcing water permeability concrete reinforced pipe gravel slip-casting, is made up of prefabricated tubular pile, precast pile tip, geotechnological cloth bag, Grouting Pipe, rubble slurry solid, cement mortar stake week, drainage blanket, cover plate; Precast pile tip is arranged at the bottom of prefabricated tubular pile, and pile top end face is provided with prefabricated tubular pile spacing preiection and Grouting Pipe limited impression; Prefabricated tubular pile center is provided with Grouting Pipe, is evenly provided with colored hole on Grouting Pipe tube wall, Grouting Pipe outsourcing rubble slurry solid, evenly reserved horizontal permeable hole on prefabricated tubular pile; Prefabricated tubular pile pile body top is provided with cover plate; Precast pile tip and the geotechnological cloth bag of prefabricated tubular pile outside parcel, have cement mortar stake week between prefabricated tubular pile and geotechnological cloth bag.The utility model can effectively solve prefabricated tubular pile outer wall silting problem, and the drainage performance that makes full use of rubble accelerates the discharging consolidation of the soil body, compares and has greatly improved its load-carrying properties with common broken stone pile.
Description
Technical field
The utility model relates to the stake of a kind of outsourcing water permeability concrete reinforced pipe gravel slip-casting, belongs to ground process field, can improve bearing capacity of foundation soil, give full play to the drainage performance of rubble, accelerates the fixed of the soil body, is applicable to Soft Ground engineering.
Background technology
Weak soil is widely distributed in China, near the middle and lower reaches in coastal and river and lake, all has weak soil covering and deep heavy back district.It is large that weak soil has water content, and shear strength is low, the characteristic that overload capacity is poor.If do not process or deal with improperly, will cause foundation instability, not only can cause the engineering problems such as road structure destruction, bumping at bridge-head, also can affect the comfortableness of driving, cause and significantly slow down by vehicle, even cause driving accident.Therefore, subgrade settlement problem, particularly soft soil roadbed settlement control problem have become the key factors such as subgrade construction quality such as affecting high-grade highway, cost, operation maintenance cost, operation benefits, and this has caused the extensive concern of engineering circles and academia.
The method of the ground processing that engineering field is conventional at present mainly contains shot stake (as gravel slip-casting stake, Ge Shanshi broken stone pile) and permeable concrete-broken stone pile series connection composite foundation etc.
Gravel slip-casting stake (application number: while 201310636953.2) construction, first utilize rig to bore and scrape out hole to projected depth, in stake hole, put into Grouting Pipe and pour into rubble to design elevation to stake hole, then carry out secondary pile hole cleaning, the slip casting of the most backward rubble internal pressure.Gravel slip-casting stake can be given full play to its metathesis, improves the shear behavior of ground; Broken stone pile has good water permeability simultaneously, can bring into play its good drainage performance under upper load effect, accelerates soil solidifying, improves foundation strength, and the settling amount effect that reduces ground is remarkable; In addition, the material source of broken stone pile is abundant, and cost is low, has good economic benefit.But also there are many problems in traditional broken stone pile, pass the dead-soft soil layers such as mud during when rubble, cannot effectively avoid the rubble pouring into clamp-on in soft soil layer to the external diffusion of stake footpath, cause rubble pile body lack of homogeneity, affect the bearing capacity of pile body, also can make the use amount of rubble significantly increase, cannot bring into play its good economic benefit simultaneously.
Ge Shanshi broken stone pile (application number: 201120199243.4) mainly comprise body and the rubble composition that geo-grid forms, this pile body makes full use of the high strength of geo-grid, low emergent property, make rubble in geo-grid, be subject to its parcel effect of contraction, prevent the side direction bulging problem of broken stone pile.But this pile body also comes with some shortcomings, often insufficient strength of geotechnological Ge Shan, in work progress, geo-grid is easily racked, and geo-grid can not solve collapse hole problem and pile body bearing capacity deficiency etc.
In sum, adopt the stake of outsourcing water permeability concrete reinforced pipe gravel slip-casting can give full play to and utilize the drainage performance of rubble, adopt prefabricated tubular pile to play certain parcel effect of contraction to rubble simultaneously, play the effect that improves Bearing Behavior of Pile, solved the problem such as collapse hole, bulging simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of outsourcing water permeability concrete reinforced pipe gravel slip-casting stake of the drainage performance that can fully utilize rubble, can accelerate the rate of consolidation of inter-pile soil body, improves Carrying capacity.
For realizing above-mentioned technical purpose, the utility model has adopted following technical scheme:
The stake of a kind of outsourcing water permeability concrete reinforced pipe gravel slip-casting, its characteristic is, is made up of prefabricated tubular pile, precast pile tip, geotechnological cloth bag, Grouting Pipe, rubble slurry solid, cement mortar stake week, drainage blanket, cover plate; Precast pile tip is arranged at the bottom of prefabricated tubular pile; Prefabricated tubular pile center is provided with Grouting Pipe, Grouting Pipe outsourcing rubble slurry solid, evenly reserved horizontal permeable hole on prefabricated tubular pile; Precast pile tip and the geotechnological cloth bag of prefabricated tubular pile outside parcel, be provided with cement mortar stake week between prefabricated tubular pile and geotechnological cloth bag; Prefabricated tubular pile pile body top arranges cover plate.
Described precast pile tip, prefabricated tubular pile, cover plate all adopt permeable concrete.
Described pile top end face is provided with the spacing preiection of fixing prefabricated tubular pile position, and the limited impression of fixing gutter.
On described Grouting Pipe tube wall, be evenly provided with colored hole.
Connecting reinforcement is reserved at described prefabricated tubular pile top, and on prefabricated tubular pile, evenly reserved permeable hole, is arranged symmetrically with 2 ~ 3 permeable holes on same section.
Described geotechnological cloth bag is non-woven geotextile or spins geotextiles or composite earthwork cloth bag.
Described drainage blanket can adopt rubble or sand cushion.
Described cover plate is connected by reserved steel bar with prefabricated tubular pile, cover plate embeds in the drainage blanket of foundation bottom, in cover plate, be provided with the vertical drainage pipe for being communicated with rubble and drainage blanket, wherein in drainage blanket, be provided with the external horizontal grouting pipe being connected with the Grouting Pipe of prefabricated tubular pile.
The construction method of above-mentioned outsourcing water permeability concrete reinforced pipe gravel slip-casting stake, comprises the following steps:
1) before construction, prepare: prefabricated tubular pile is fixedly connected with precast pile tip, and puts geotechnological cloth bag;
2) pore-forming: according to geological conditions, hole to projected depth with rig in soil layer;
3) pile body presses down: lifting pile body, and align piles position, the verticality of adjustment stake and pile frame, then exerts pressure, and evenly prefabricated tubular pile is pressed in soil layer to design elevation;
4) pour into rubble: Grouting Pipe is put at the center at prefabricated tubular pile, on Grouting Pipe bottom insertion precast pile tip is now in groove, in prefabricated tubular pile, pours into rubble until design height;
5) clear hole: to the water filling of rubble internal pressure, the silt in rubble is discharged by Grouting Pipe, make rubble closely knit simultaneously, continuous supplementary irrigation rubble in the process of clear hole;
5) stake machine displacement: move stake pile driver to next point, and repeat above-mentioned steps;
6) cover plate construction: build cover plate at pile body top, cover plate adopts pervious concrete to build, and cover plate is connected with prefabricated tubular pile by reserved steel bar;
7) lay drainage blanket: on the cover board rubble or sand drainage blanket are laid by portion, cover plate is embedded in drainage blanket;
8) slip casing by pressure: after the precompressed phase finishes, to the slip casting of rubble internal pressure, and then become rubble slurry solid by external Grouting Pipe, form rigidity or semi-rigid stake, the crowded cement mortar stake week that forms can be expanded in prefabricated tubular pile outside, finally carries out successive projects construction according to requirement of engineering.
The utlity model has following feature and beneficial effect:
1, the effect of contraction of the utility model prefabricated tubular pile to rubble, plays decisive role to improving the load-carrying properties of pile body, compared with traditional broken stone pile, has greatly improved the load-carrying properties of pile body, has avoided the bulging of broken stone pile to destroy simultaneously.
2, prefabricated tubular pile, precast pile tip, cover plate all adopt pervious concrete material, and the discharging consolidation that accelerates surrounding soil is had to good effect.
3, geotechnological cloth bag and horizontal permeable permeable hole are set, can prevent that prefabricated tubular pile outer wall is by tiny sludge granules silting, underground water can enter in rubble in time by permeable hole, makes permeation interspaces keep unimpeded, and then given full play to the drainage performance of rubble, accelerate soil solidifying.
4, the setting of the drainage blanket of vertical drainage pipe and foundation bottom in cover plate, can discharge the underground water in rubble in time, has good effect to accelerating the soil body fixed.
5, after the precompressed phase finishes, to slip casing by pressure in rubble, make rubble slurry admittedly become rigidity or semi-rigid stake, greatly improved the load-carrying properties of pile body.
6, cement mortar expands the utricule that squeezes formation, obvious to the compacted effect of soil layer, can increase the side friction of pile body, reduces the sedimentation of pile body, and the load-carrying properties that improve pile body are had to extraordinary effect.
Brief description of the drawings
Fig. 1 is the utility model outsourcing water permeability concrete reinforced pipe gravel slip-casting pilework schematic diagram;
Fig. 2 is outsourcing water permeability concrete reinforced pipe gravel slip-casting stake precompressed phase pre-structure schematic diagram;
Fig. 3 is precast pile tip detail drawing;
Fig. 4 is the construction process schematic diagram of a kind of outsourcing water permeability of the utility model concrete reinforced pipe gravel slip-casting stake;
In figure: 1-prefabricated tubular pile; 2-precast pile tip; 3-permeable hole; 4-geotechnique cloth bag; 5-rubble slurry solid; 6-Grouting Pipe; 7-cover plate; 8-drainage blanket; The external horizontal grouting pipe of 9-; 10-vertical drainage pipe; 11-cement mortar stake week; 12-rubble; 13-Grouting Pipe limited impression; 14-prefabricated tubular pile spacing preiection.
Detailed description of the invention
In the present embodiment such as the transport of the manufacturing process of prefabricated tubular pile and transport, rubble, do not state tired, emphasis is set forth the embodiment that the utility model relates to structure.
Fig. 1 is a kind of outsourcing water permeability of the utility model concrete reinforced pipe gravel slip-casting pilework schematic diagram; Fig. 2 is the utility model outsourcing water permeability concrete reinforced pipe gravel slip-casting stake cross-sectional view; Fig. 3 is the construction process schematic diagram of a kind of outsourcing water permeability of the utility model concrete reinforced pipe gravel slip-casting stake.
With reference to the outsourcing water permeability concrete reinforced pipe gravel slip-casting stake shown in Fig. 1 ~ 3, mainly formed by prefabricated tubular pile 1, precast pile tip 2, geotechnological cloth bag 4, Grouting Pipe 6, rubble slurry solid 5, cement mortar stake week 11, cover plate 7.
Taking the outsourcing water permeability concrete reinforced pipe gravel slip-casting stake of implanting external diameter 500mm, wall thickness 100mm as example, set forth the detailed description of the invention of outsourcing water permeability concrete reinforced pipe gravel slip-casting stake below.
Prefabricated tubular pile 1, precast pile tip 2, cover plate 7 all adopt pervious concrete.
Geotechnique's cloth bag 4 is selected roll type, adopts polyester long fiber composites to make; Permeable hole 3 in prefabricated tubular pile 1, diameter is 20mm, arranges two permeable holes on same section.
Grouting Pipe 6 in prefabricated tubular pile 1 adopts pvc pipe, and φ 100mm is evenly provided with injected hole on pvc pipe.
The cover plate 7 at pile body top adopts water permeability reinforced concrete cover plate, and the reinforcing bar reserved by prefabricated tubular pile 1 top is fixedly connected with prefabricated tubular pile 1, the thick 200mm of cover plate 7, diameter 1200mm, reserved vertical drainage pipe 10 in cover plate 7.Cover plate 7 embeds in hardcore bed 8, and the thickness of hardcore bed is 300 ~ 500mm.Wherein, permeable concrete interior design compressive strength is not less than 20MPa, and transmission coefficient is not less than 2mm/s.
Adopt static pressure method to carry out the stake of outsourcing water permeability concrete reinforced pipe gravel slip-casting and plant stake, main construction course is as follows:
1) before construction, prepare: prefabricated tubular pile 1 is inserted on the prefabricated tubular pile spacing preiection 13 on precast pile tip 2, and put geotechnological cloth bag 4 at prefabricated tubular pile 1 and precast pile tip 2 outsides;
2) pore-forming: according to geological conditions, hole to projected depth with rig in soil layer;
3) pile body presses down: pile body is lifted by crane with a stake machine, align piles position, adjusts the verticality of pile body and pile frame, then exerts pressure, and evenly pile body is pressed in soil layer until design elevation;
4) pour into rubble: Grouting Pipe 6 is inserted in Grouting Pipe limited impression 14, then in prefabricated tubular pile 1, poured into rubble 12, until design height;
5) clear hole: to rubble 12 internal pressure water fillings, the silt in rubble 12 is discharged by Grouting Pipe 6, make rubble 12 closely knit simultaneously, continuous supplementary irrigation rubble 12 in the process of clear hole;
6) stake machine displacement: move stake pile driver to next point, and repeat above-mentioned steps;
7) cover plate construction: make cover plate 7 at water permeability concrete reinforced pipe broken stone pile top, cover plate 7 is connected with prefabricated tubular pile 1 by reserved steel bar, and cover plate 7 is provided with vertical drainage pipe 10;
8) lay horizontal drainage bed course: lay drainage blanket 8 on cover plate 7 tops, cover plate 7 is embedded in drainage blanket;
9) slip casing by pressure: after the precompressed phase finishes, by external horizontal grouting pipe 9 and Grouting Pipe 6 to rubble 12 internal pressure slip castings, rubble 12 is starched and admittedly become rubble slurry solid 5, form rigidity or semi-rigid stake, the crowded cement mortar stake week 11 that forms can be expanded in prefabricated tubular pile 1 outside, finally carries out successive projects construction according to requirement of engineering.
Claims (8)
1. the stake of outsourcing water permeability concrete reinforced pipe gravel slip-casting, its characteristic is, is made up of prefabricated tubular pile, precast pile tip, geotechnological cloth bag, Grouting Pipe, rubble slurry solid, cement mortar stake week, drainage blanket, cover plate; Precast pile tip is arranged at the bottom of prefabricated tubular pile; Prefabricated tubular pile center is provided with Grouting Pipe, Grouting Pipe outsourcing rubble slurry solid, evenly reserved horizontal permeable hole on prefabricated tubular pile; Precast pile tip and the geotechnological cloth bag of prefabricated tubular pile outside parcel, be provided with cement mortar stake week between prefabricated tubular pile and geotechnological cloth bag; Prefabricated tubular pile pile body top arranges cover plate.
2. outsourcing water permeability concrete reinforced pipe gravel slip-casting according to claim 1 stake, is characterized in that described precast pile tip, prefabricated tubular pile, cover plate all adopt permeable concrete.
3. outsourcing water permeability concrete reinforced pipe gravel slip-casting according to claim 1 stake, is characterized in that described pile top end face is provided with prefabricated tubular pile spacing preiection and Grouting Pipe limited impression.
4. outsourcing water permeability concrete reinforced pipe gravel slip-casting according to claim 1 stake, is characterized in that being evenly provided with colored hole on described Grouting Pipe tube wall.
5. outsourcing water permeability concrete reinforced pipe gravel slip-casting according to claim 1 stake, is characterized in that described prefabricated tubular pile top reserves connecting reinforcement, and on prefabricated tubular pile, evenly reserved permeable hole, is arranged symmetrically with 2 ~ 3 permeable holes on same section.
6. outsourcing water permeability concrete reinforced pipe gravel slip-casting according to claim 1 stake, is characterized in that described geotechnological cloth bag is non-woven geotextile or spins geotextiles or composite earthwork cloth bag.
7. outsourcing water permeability concrete reinforced pipe gravel slip-casting according to claim 1 stake, is characterized in that described drainage blanket adopts rubble or sand cushion.
8. outsourcing water permeability concrete reinforced pipe gravel slip-casting according to claim 1 stake, it is characterized in that described cover plate is connected by reserved steel bar with prefabricated tubular pile, cover plate embeds in the drainage blanket of foundation bottom, in cover plate, be provided with the vertical drainage pipe for being communicated with rubble and drainage blanket, wherein in drainage blanket, be provided with the external horizontal grouting pipe being connected with the Grouting Pipe of prefabricated tubular pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403517.0U CN204000851U (en) | 2014-07-21 | 2014-07-21 | The stake of a kind of outsourcing water permeability concrete reinforced pipe gravel slip-casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403517.0U CN204000851U (en) | 2014-07-21 | 2014-07-21 | The stake of a kind of outsourcing water permeability concrete reinforced pipe gravel slip-casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204000851U true CN204000851U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420403517.0U Expired - Fee Related CN204000851U (en) | 2014-07-21 | 2014-07-21 | The stake of a kind of outsourcing water permeability concrete reinforced pipe gravel slip-casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204000851U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131555A (en) * | 2014-07-21 | 2014-11-05 | 冠鲁建设股份有限公司 | Covered water-permeable reinforced concrete pipe gravel grouting pile and construction method thereof |
| CN104762949A (en) * | 2015-04-03 | 2015-07-08 | 盐城工学院 | Formation method of straw solidifying and blow-filling sludge pile |
| CN108517856A (en) * | 2018-04-28 | 2018-09-11 | 中国铁建港航局集团有限公司 | A kind of mold-bagged concrete stake and its construction method |
| CN110528352A (en) * | 2018-05-24 | 2019-12-03 | 中铁二院工程集团有限责任公司 | A kind of construction method of swelling rock cutting deep layer discharge structure |
| CN111485547A (en) * | 2020-06-03 | 2020-08-04 | 山东大学 | Prefabricated horizontal bearing type high-toughness concrete permeable pile and preparation method thereof |
| EP4187018A1 (en) * | 2021-11-30 | 2023-05-31 | Centrum Pæle A/S | Pile foundation and method for installing a pile foundation |
-
2014
- 2014-07-21 CN CN201420403517.0U patent/CN204000851U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131555A (en) * | 2014-07-21 | 2014-11-05 | 冠鲁建设股份有限公司 | Covered water-permeable reinforced concrete pipe gravel grouting pile and construction method thereof |
| CN104131555B (en) * | 2014-07-21 | 2016-06-08 | 杭州江润科技有限公司 | A kind of outsourcing water penetration concrete reinforced pipe crushed stone grouting pile and construction method thereof |
| CN104762949A (en) * | 2015-04-03 | 2015-07-08 | 盐城工学院 | Formation method of straw solidifying and blow-filling sludge pile |
| CN108517856A (en) * | 2018-04-28 | 2018-09-11 | 中国铁建港航局集团有限公司 | A kind of mold-bagged concrete stake and its construction method |
| CN110528352A (en) * | 2018-05-24 | 2019-12-03 | 中铁二院工程集团有限责任公司 | A kind of construction method of swelling rock cutting deep layer discharge structure |
| CN111485547A (en) * | 2020-06-03 | 2020-08-04 | 山东大学 | Prefabricated horizontal bearing type high-toughness concrete permeable pile and preparation method thereof |
| EP4187018A1 (en) * | 2021-11-30 | 2023-05-31 | Centrum Pæle A/S | Pile foundation and method for installing a pile foundation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170721 |