CN1025798C - Construction method for driving pre-fabricated pile into ground - Google Patents
Construction method for driving pre-fabricated pile into ground Download PDFInfo
- Publication number
- CN1025798C CN1025798C CN 93101653 CN93101653A CN1025798C CN 1025798 C CN1025798 C CN 1025798C CN 93101653 CN93101653 CN 93101653 CN 93101653 A CN93101653 A CN 93101653A CN 1025798 C CN1025798 C CN 1025798C
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- pile
- ground
- stake
- glued
- slurry
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- Expired - Fee Related
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The present invention relates to a method for driving a prefabricated pile into ground, which has the steps of pressing a prefabricated pile into ground by a pile driving device, and then jetting high-pressure cementation mortar on pile ends and the side of the ground through a pipeline on the prefabricated pile and a jet nozzle at the end of the pile. With the method of the present invention, piles can penetrate soft-hard mixed ground and hard thick ground to be buried, and can obtain the advantages of high bearing capacity upright resistance of single pile, high construction speed, no noise, no vibration and no soil discharge.
Description
The present invention relates to the piling method of planting of a kind of prefabricated reinforced concrete or other.In engineerings such as pile foundation, pit curtain stake, often adopted precast reinforced concrete pile or steel pipe pile, and with beat, static pressure or jetting method establish and do foundation pile or campshed formula diaphragm wall in the stratum.USPO discloses a kind of piling method in the patent of invention (US3763654 number) of mandate on October 9th, 1973 " pressing the stake equipment of dialing ", be annular fixture block and the hydraulic jack ejection device that the stake of pipe shape is passed through pile frame, be pressed in the stratum, in piling, pass the middle nozzle jetting of pipeline under the stake bottom is oblique of stake by high-pressure pump through one, to destroy disturbance end week soil layer, reduce pressure pile resistance, smoothly pile sinking.The advantage of this method is noiselessness, friction, not casting, easy, directly perceived, reliable, but because when jetting, pile sinking, to around the stake and the disturbance of end soil layer destroy and the bearing capacity of stake had by a relatively large margin the end that falls, jetting and dregs mixture overflow ground and pollution are arranged in addition.
The objective of the invention is defective at this method, provide a kind of and can not only penetrate hard thicker soil layer, noiselessness, friction, not casting, pollution-free and can obtain the job practices of the preformed pile of higher bearing capacity of single pile again, the objective of the invention is to finish by following method, this method comprises by the piling device and preformed pile being pressed in the stratum and by being located on pipeline on the preformed pile and the precast pile tip that be provided with and nozzle above-mentioned pipeline connection to stake end and the glued slurry of stratum, side inject high pressure.The kind of above-mentioned glued slurry can be selected glued material and match ratio of starching for use according to different geology and instructions for use.The pressure of the glued slurry of above-mentioned injection can change in the 2-100MPa scope that do not coexist according to geological conditions.
The present invention is further described below in conjunction with accompanying drawing:
Fig. 1 is the construction state diagram of the inventive method;
Fig. 2 is the longitudinal plan that is provided with pipeline and nozzle stake;
Fig. 3 is the stake cross-sectional view along Fig. 2 A-A line;
Fig. 4 is another kind of stake cross sectional shape;
As shown in Figure 1, on piling machinery 6, fix by anchor clamps 4, utilize hydraulic jack 5 that stake is pressed in the ground, when arriving than hardpan as shown in Figure 2, by being located at the pipeline 1 and a nozzle 2 of tip setting in the stake, utilize high-pressure pump that the gluing slurry is spurted into than in the hardpan, hard soil layer block is scatter, then utilize piling machinery 6 to continue stake 3 is pressed into the stratum.The above-mentioned step that stake 3 is applied downward pressure can be carried out with the step of spraying glued slurry or hocket simultaneously, and this depends primarily on the geological condition of ground.Utilize the stake that the inventive method constructs to be the hollow cylinder stake, as shown in Figure 3, also can be the square hollow stake, as shown in Figure 4 or other shape.Glued slurry pass through pipeline, can be located at the pile body inside or the outside, nozzle can be located at a sharp inside or the outside.
At different geology and groundwater condition, spray the pressure of glued slurry and can in the scope of 2-100MPa, adjust.The kind of glued slurry can be according to different geological conditionss and instructions for use the selection of material and match ratio etc.
The method of the injection preformed pile that the present invention proposes, not only noiselessness, friction, no casting, no blowdown and can penetrate thicker hard formation, this method is not only applicable to be mingled with the deep soft soil foundation of hardpan, is applicable to the thicker again ground of whole stratum uniform soil quality yet.This method has been eliminated jetted pile fully a stake week and a disturbance of end soil has been destroyed and the drawback of reduction bearing capacity, and the stake that is destroyed by disturbance owing to the glued slurry of inject high pressure is all native, again by gluing slurry infiltration diffusion reinforcing encryption.The stake end soil body also has the good result that enlarges infiltration, therefore can greatly improve the bearing capacity of single pile and the anti-power of dialling of stake.
Claims (5)
1, a kind of driving pre-fabricated pile is gone into job practices in the stratum, its step comprises:
(1), by the piling device, preformed pile is pressed in the stratum;
(2), by being located on pipeline on the preformed pile and the preformed pile stake point that be provided with and nozzle above-mentioned pipeline connection to stake end and the glued slurry of side soil layer inject high pressure;
2, method according to claim 1 is characterized in that above-mentioned steps (1) and step (2) carry out simultaneously;
3, method according to claim 1 is characterized in that above-mentioned steps (1) and step (2) hocket;
4, method according to claim 1 is characterized in that the pressure that sprays glued slurry can change according to different geological conditionss in the 2-100MPa scope;
5, method according to claim 1, it is characterized in that spraying glued kind of starching can select the kind and the match ratio of glued slurry for use according to different geological conditionss and instructions for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93101653 CN1025798C (en) | 1993-02-22 | 1993-02-22 | Construction method for driving pre-fabricated pile into ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93101653 CN1025798C (en) | 1993-02-22 | 1993-02-22 | Construction method for driving pre-fabricated pile into ground |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1078760A CN1078760A (en) | 1993-11-24 |
| CN1025798C true CN1025798C (en) | 1994-08-31 |
Family
ID=4983711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93101653 Expired - Fee Related CN1025798C (en) | 1993-02-22 | 1993-02-22 | Construction method for driving pre-fabricated pile into ground |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1025798C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660946B (en) * | 2012-05-31 | 2015-02-11 | 福州市第三建筑工程公司 | Grouting pile head of tubular pile and application method thereof |
| CN103174139A (en) * | 2013-04-16 | 2013-06-26 | 合肥建工集团有限公司 | Construction technology capable of inserting pile through gravel bed via lead hole |
| CN109778857A (en) * | 2018-11-30 | 2019-05-21 | 北京荣创岩土工程股份有限公司 | A kind of prefabricated pile is from pilot hole device and prefabricated pile from pilot hole pile making method |
-
1993
- 1993-02-22 CN CN 93101653 patent/CN1025798C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1078760A (en) | 1993-11-24 |
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Legal Events
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |