CN1048781C - Forced construction technology for bored concrete pile - Google Patents
Forced construction technology for bored concrete pile Download PDFInfo
- Publication number
- CN1048781C CN1048781C CN 97119826 CN97119826A CN1048781C CN 1048781 C CN1048781 C CN 1048781C CN 97119826 CN97119826 CN 97119826 CN 97119826 A CN97119826 A CN 97119826A CN 1048781 C CN1048781 C CN 1048781C
- Authority
- CN
- China
- Prior art keywords
- pile
- cement grout
- filling
- filling pile
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a strengthening construction technique for a filling pile. A grouting passage which directly reaches the bottom of a pile hole is embedded in the pile hole. After a filling pile is formed, cement grout is injected into the grouting passage by pressure. Firstly, the cement grout with pressure squeezes and permeates downwards to form a cement grout enlarging head at the end of the filling pile; secondly, the cement grout with pressure squeezes and permeates upwards through a gap at the side of the filling pile to tamp gaps in a soil layer at the side of the filling pile and concrete cracks on the pile body; thus, the bearing capacity of the filling pile is enhanced. When the strengthened filling pile is applied to a foundation design, the pile number can be reduced or the pile length can be shortened, so the construction period is shortened, and the construction cost is reduced.
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 is depressed sleeve pipe in soil layer, form a hole through fetching earth after, 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 and reuse, still do so the soil structures of for a moment destroying the stake side behind pile, 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 that the present invention advanced 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 0.5-50 μ pa usually.Accompanying drawing is drawn with solid castinplace pile, and this technology also is applicable to hollow pouring pile certainly.
Claims (1)
1, a kind of reinforcement construction technology of castinplace pile is buried underground in the stake hole and is directed reach a grouting channel of bottom, hole, injects cement grout to grouting channel pressure behind the pile, it is characterized in that: added 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 CN1186890A (en) | 1998-07-08 |
| CN1048781C true 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) |
Families Citing this family (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 |
| 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 |
-
1997
- 1997-12-25 CN CN 97119826 patent/CN1048781C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1186890A (en) | 1998-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107700361A (en) | A kind of dumb-bell shape grout sleeve and the method that assembling construction is carried out with the grout sleeve | |
| CN206784372U (en) | Injection forming club-footed pile | |
| 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 | |
| CN103410144B (en) | Prestressed reinforcement piles set into rock and construction method | |
| CN101012654A (en) | Self-draining reinforced pipe supporting structure and construction method thereof | |
| CN113445516A (en) | Drilling and pouring type cement soil pile and construction method thereof | |
| CN1048781C (en) | Forced construction technology for bored concrete pile | |
| CN105421446B (en) | A kind of construction method of composite soil extruding solidification prefabricated pile for treatment of soft foundation | |
| 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 | |
| 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 | |
| KR100834920B1 (en) | Sheathing of tapetum sheet and construction method to use the above sheet | |
| CN205475211U (en) | A mix soil extrusion solidification precast pile for soft base is handled | |
| CN109958460A (en) | The multi-functional anchoring waterproof construction of one kind and its anchoring process | |
| JP2000120080A (en) | Hollow cylindrical body and its construction method | |
| 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 | |
| JP2790038B2 (en) | Reinforcement method of existing pile foundation building | |
| CN114525781A (en) | Prestressed rod core bag grouting combined anti-floating component and construction method | |
| CN203866821U (en) | Lead hole implant cloth bag gravel grouting pile | |
| CN1042158C (en) | Injecting method for steel rod concrete prefabricated pile end | |
| CN208685597U (en) | A kind of pile for prestressed pipe and prestressed pile | |
| CN212582661U (en) | Manual hole digging pile for overhead line |
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 |