CN1186890A - Forced construction technology for bored concrete pile - Google Patents
Forced construction technology for bored concrete pile Download PDFInfo
- Publication number
- CN1186890A CN1186890A CN97119826A CN97119826A CN1186890A CN 1186890 A CN1186890 A CN 1186890A CN 97119826 A CN97119826 A CN 97119826A CN 97119826 A CN97119826 A CN 97119826A CN 1186890 A CN1186890 A CN 1186890A
- Authority
- CN
- China
- Prior art keywords
- pile
- construction technology
- castinplace pile
- stake
- hole
- 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.)
- Granted
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The reinforcing construction technology of poured pile is embedding grouting passage throughout the pile hole and pressure pouring cement slurry to the grouting passage after pile fromation. Pressured cement slurry extrudes and permeates downwards to form expanded pile end and upwards through side gaps to fill gaps and cracks in pile body, so as to increase the bearing capacity of pile. The use of the present invention in foundation engineering makes it possible to use less piles or shorter pile length, and this can short construction period and reduce construction cost.
Description
The present invention relates to a kind of reinforcement construction technology of castinplace pile.
Adopt static pressure method or mill pipe method or hammering method in soil layer, to depress sleeve pipe, after fetching earth, form the stake hole, place reinforcing cage or reinforcing cage and core rod then, the formed castinplace pile of concrete perfusion is called solid castinplace pile of bushing type static pressure or bushing type static pressure hollow pouring pile again, in order to reduce construction cost, this castinplace pile often will be extracted the sleeve pipe that is pressed into soil layer behind pile and reuse, but do the soil structures of for a moment destroying the stake side like this, two can make pile concrete checking may occur, have consequently reduced the bearing capacity of castinplace pile.
The objective of the invention is to provide a kind of reinforcement construction technology of castinplace pile at above-mentioned situation.
This technology is to bury underground to direct reach a grouting channel of bottom, hole in the stake hole, injects cement grout to grouting channel pressure behind the pile.
Above-mentioned cement grout one with pressure is to stake end soil layer extruding infiltration, and with following layer of sand, the macadam combination of stake end, form stake end cement paste enlarged footing, thereby improved the bearing capacity of stake, the 2nd, by the upwards extruding infiltration of gap of stake side, and tamp slit in the side soil layer and the distress in concrete on the pile body, thereby consolidating pile has improved the bearing capacity of stake with the adhesion of soil layer; Because this technology has above-mentioned good effect, just can consider to reduce the quantity of stake or the length of shortening stake in the foundation design, certainly will shorten the construction period like this and reduce construction cost.
Illustrate detailed content of the present invention below in conjunction with drawings and Examples.
Fig. 1: process diagram of the present invention;
Fig. 2: the filling pile structure schematic diagram behind enforcement the present invention.
As shown in the figure, the reinforcement construction technology of a kind of castinplace pile of the present invention is to bury the grouting channel 2 of directing reach 1 bottom, a hole in stake hole 1 underground, injects cement grout to grouting channel 2 pressure behind the pile.Certainly, implementing this technology is to carry out with the construction technology combination of castinplace pile, as to bury grouting channel 2 underground be to coexist to place reinforcing cage 3 or reinforcing cage 3 and core rod in the hole 1 and carry out simultaneously, and " pile " of indication is meant and poured into concrete and extracted in type castinplace pile after the sleeve pipe in this technology.The quantity of grouting channel 2 and position are determined according to the pattern and the size of castinplace pile, the position can also can eccentricly be provided with on the axis of pile body, and quantity can be one, also can be many, grouting channel 2 can adopt steel pipe or plastic pipe or other pressure hose to make.The cement grout that pressure injects can add sand according to soil condition becomes cement mortar, perhaps further adds flyash and expansion agent.Injection pressure also will be determined according to soil condition, gets 0.5-51 μ pa usually.Accompanying drawing is drawn with solid castinplace pile, and this technology also is applicable to hollow pouring pile certainly.
Claims (3)
1, a kind of reinforcement construction technology of castinplace pile is characterized in that: bury the grouting channel (2) of directing reach bottom, a hole (1) in the stake hole (1) underground, inject cement grout to grouting channel (2) pressure behind the pile.
2, the reinforcement construction technology of castinplace pile according to claim 1 is characterized in that: added sand in the cement grout.
3, the reinforcement construction technology of castinplace pile according to claim 2 is characterized in that: also added flyash and expansion agent in the cement grout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97119826 CN1048781C (en) | 1997-12-25 | 1997-12-25 | Forced construction technology for bored concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97119826 CN1048781C (en) | 1997-12-25 | 1997-12-25 | Forced construction technology for bored concrete pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1186890A true CN1186890A (en) | 1998-07-08 |
| CN1048781C CN1048781C (en) | 2000-01-26 |
Family
ID=5175595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97119826 Expired - Fee Related CN1048781C (en) | 1997-12-25 | 1997-12-25 | Forced construction technology for bored concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1048781C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7909541B1 (en) | 2008-10-24 | 2011-03-22 | Synchro Patents, Inc. | Apparatus and method for improved grout containment in post-grouting applications |
| CN102644282A (en) * | 2012-03-31 | 2012-08-22 | 上海市电力公司 | Method for reinforcing cast-in-place pile foundation in grouting manner |
| CN103195062A (en) * | 2013-03-27 | 2013-07-10 | 上海市机械施工有限公司 | Pile bottom grouting method |
-
1997
- 1997-12-25 CN CN 97119826 patent/CN1048781C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7909541B1 (en) | 2008-10-24 | 2011-03-22 | Synchro Patents, Inc. | Apparatus and method for improved grout containment in post-grouting applications |
| CN102644282A (en) * | 2012-03-31 | 2012-08-22 | 上海市电力公司 | Method for reinforcing cast-in-place pile foundation in grouting manner |
| CN103195062A (en) * | 2013-03-27 | 2013-07-10 | 上海市机械施工有限公司 | Pile bottom grouting method |
| CN103195062B (en) * | 2013-03-27 | 2015-12-23 | 上海市机械施工集团有限公司 | The method of pile grouting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1048781C (en) | 2000-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1896383B (en) | Steel-pipe concrete assembled pile of predrilled hole rock-embedded and its construction | |
| CN206784372U (en) | Injection forming club-footed pile | |
| CN107988895B (en) | Bridge and construction method thereof | |
| CN103993598A (en) | Crashed stone grouting pile with lead holes implanted in cloth bag and construction method | |
| CN106996104A (en) | Injection forming club-footed pile and its construction method | |
| CN102535458A (en) | Reinforced cement-soil anchor bolt and construction method thereof | |
| CN104631440A (en) | Stiffening core lengthening foundation pit support structure for existing large-diameter bored concrete pile and construction method | |
| CN103410144B (en) | Prestressed reinforcement piles set into rock and construction method | |
| CN101012654A (en) | Self-draining reinforced pipe supporting structure and construction method thereof | |
| CN214656943U (en) | Core pile and slurry-fixed rigid-flexible combined pile | |
| CN113445516A (en) | Drilling and pouring type cement soil pile and construction method thereof | |
| CN108277800A (en) | A kind of consolidation layer of sand concrete reinforced pipe section broken stone pile and its construction method | |
| CN105484270B (en) | Reinforcement protection construction method of high steep old rubble retaining wall adjacent to deep foundation pit | |
| CN1050421A (en) | The piling method of casting prefabricated composite pile | |
| CN1048781C (en) | Forced construction technology for bored concrete pile | |
| KR100991248B1 (en) | Foundation construction method of micro pile using pack and pile used in the same | |
| CN207846409U (en) | A kind of consolidation layer of sand concrete reinforced pipe section broken stone pile | |
| CN205475211U (en) | A mix soil extrusion solidification precast pile for soft base is handled | |
| CN105421446B (en) | A kind of construction method of composite soil extruding solidification prefabricated pile for treatment of soft foundation | |
| CN213773319U (en) | Enclosure wall of wall pile grouting material construction method for enclosure structure | |
| CN111535334B (en) | Construction method of double-core expanded pile anchor foundation pit supporting structure | |
| CN104929101B (en) | Resistance to plucking prestress anchoraging broken stone pile and construction method that a kind of base expanding and base expanding multistage side is expanded | |
| CN203866821U (en) | Lead hole implant cloth bag gravel grouting pile | |
| CN208685597U (en) | A kind of pile for prestressed pipe and prestressed pile | |
| CN1042158C (en) | Injecting method for steel rod concrete prefabricated pile end |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |