CN1101392A - Pouring process for reinforced concrete piles - Google Patents
Pouring process for reinforced concrete piles Download PDFInfo
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- CN1101392A CN1101392A CN 93115834 CN93115834A CN1101392A CN 1101392 A CN1101392 A CN 1101392A CN 93115834 CN93115834 CN 93115834 CN 93115834 A CN93115834 A CN 93115834A CN 1101392 A CN1101392 A CN 1101392A
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- hole
- reinforced concrete
- concrete
- pile
- perfusion
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Abstract
The technology for pouring reinforced concrete pile under unfavourable geologic condition of running sand, underground water, slurry and gritstone includes suchs teps as drilling to predetermined depth, spraying cement mortar in ratio of 0.5-0.7 (water to cement) via nozzles in drill bit, putting reinforcing bar cage in hole, pouring concrete 2-3m high each time untill up to the top of the pole. It features close combination of pile with earth, saving raw material and high bearing capacity.
Description
The present invention relates to a kind of process of pouring into reinforced concrete pile.
At present, the method of pouring concrete pile is a lot of in the world, a kind of bore slurry pressuring pile-forming that provides as Chinese patent CN86100705, be to hole to desired depth, when carrying brill, extremely there is not the hole danger position that collapses by being located at drill bit nozzle high pressure hydrojet, after placing reinforcing cage and filling up pellet, make second pulp feeding by at least one slip casting sebific duct at the bottom of the hole again, reach the aperture to slurries.This kind method is carried out second pulp feeding, a part of slurries have been consumed, mend in the slurry process and overflow a part of slurries again from the aperture, because technical indicator restriction, can not utilize again, therefore lost some slurries again, and the machine of the pile body of perfusion is joined for there not being husky concrete pile, at the husky concrete pile that has that is lower than on the intensity under the same terms.
The purpose of this invention is to provide a kind of cement paste dado of using, and stir to form a kind of method for filling of reinforced concrete pile of new machine proportioning with concrete secondary.
The object of the present invention is achieved like this: hole to desired depth, 's 0.5～0.7 cement grout by the nozzle in the drill bit to hole inner high voltage spray water/binder ratio, carry boring height and injecting the cement grout height at every turn and be directly proportional, drill bit is embedded in 1.5～2m place in the cement grout all the time, after cement paste can found wall, prefabricated reinforcing cage is put into the hole, in the hole, throw in the concrete that stirs then, its label is 50～200#, the concrete of throwing in per 2～3 meters dark be one deck, vibrate once, till being filled into absolute altitude.
According to the difference of geological conditions, the cement grout pressure of injection is at 1～25MPa/cm
2In the scope, if find the pile crown of perfusion just husky suspension is arranged, but throw-in part divides rubble, smash the back pile again.Stake aperture place has passage, this passage with hold stock tank and be communicated with, throw in cement grout that rubble overflows in secondary depositing concrete and back and can flow into along the passage that open in the aperture and hold stock tank, this reclaims the concrete that slurries can be used to stir the input of production secondary.
The process of the perfusion reinforced concrete pile that the present invention proposes adopts boring back high pressure spray cement grout retaining wall at the bottom of the hole, to around soil a very strong osmosis is arranged, make hole wall intact.Secondary depositing concrete and reclaim excessive cement grout and utilize again on this basis, this is than adopting the difference of cement grout second pulp feeding to be: the cement grout of having saved second pulp feeding, having reclaimed excessive cement grout utilizes again, two totals account for always with 30～40% of slurry amount, pile body machine proportioning is more perfect, for husky concrete pile is arranged, improved strength of the mixing pile.Compare with common stake shape, the stake shape of pouring into the present invention is improved 1.5～1.8 times of bearing capacities.
Fig. 1 is the process flow diagram of cement rendering dado "forming column.
Embodiment:
600 millimeters of perfusion φ, long 10 meters lagging pile.Geological conditions: light loam, natural aqueous rate 3.5%, 1 meter of underground water.Earth bearing strength R value: 14 tons.Long screw auger 1 is holed to designing requirement, and the cement grout 7 that high pressure pouring modulates, pressure are 10MPa/cm
2, cement injection slurries 7 are to the place of not collapsing, and place reinforcing cage 2 in the hole, throw in the concrete 3 that stirs then, feed intake 3 meters the time, vibrate once with vibrator 6, throw into a top pile always.Technological process as shown in Figure 1 divides A, B, four steps of C, D, A: boring; B: propose brill slip casting; C: descending reinforcing cage; D: layering is vibrated.The cement grout that overflows enters through passage 4 and holds stock tank 5.The cement grout that is poured into, water/binder ratio are 0.6, adopt No. 425 ordinary Portland cement, concrete grade: 80#, and slump is 2, its stone, sand, slurry ratio are 1: 0.3: 0.6.Method of testing is pressed the operation of JGJ4-80 rules, and the vertical static load lotus reaches design standard, is 80 tons, and the former design strength of pile body is 200#100%, now reaches 124～146%.
Claims (3)
1, a kind of process of pouring into reinforced concrete pile, hole to desired depth, prefabricated reinforcing cage is positioned in the hole to not collapsing the hole site by the spray high pressure slurries in the hole of the nozzle in the drill bit, it is characterized in that: the slurry water gray scale of spray is 0.5～0.7 cement grout, after reinforcing cage places, throw in the concrete stir in the hole, its label is 50～200#, the concrete of input per 2～3 meters dark be one deck, vibrate once, till being filled into absolute altitude.
2, the process of perfusion reinforced concrete pile according to claim 1 is characterized in that: behind the concrete perfusion, the pile crown for sand suspends can drop into part rubble in the hole, vibrates again.
3, the process of perfusion reinforced concrete pile according to claim 1 is characterized in that: have passage 4 at aperture place, this passage with hold stock tank 5 and be communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93115834 CN1101392A (en) | 1993-10-06 | 1993-10-06 | Pouring process for reinforced concrete piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93115834 CN1101392A (en) | 1993-10-06 | 1993-10-06 | Pouring process for reinforced concrete piles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1101392A true CN1101392A (en) | 1995-04-12 |
Family
ID=4991366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93115834 Pending CN1101392A (en) | 1993-10-06 | 1993-10-06 | Pouring process for reinforced concrete piles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1101392A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306121C (en) * | 2004-08-05 | 2007-03-21 | 陈佳训 | Method for pile foundation construction of geologic structure with flow plastic half-flow plastic and its application apparatus |
| CN100453744C (en) * | 2005-11-17 | 2009-01-21 | 郑雄 | Underwater compact concrete construction method |
| CN101876171A (en) * | 2010-04-29 | 2010-11-03 | 中交隧道工程局有限公司 | New method for water washing and decomposing to break pile head of bridge pile foundation |
| CN102704466A (en) * | 2012-05-16 | 2012-10-03 | 苏州市伦琴工业设计有限公司 | Pile manufacturing method in buildings |
| CN103174130A (en) * | 2011-12-21 | 2013-06-26 | 中国建筑第四工程局有限公司 | Anti-sloughing method of sand layer of impact-cone concrete pile |
| CN106812473A (en) * | 2017-02-10 | 2017-06-09 | 上海强劲地基工程股份有限公司 | Churning drilling tool with helical blade and pressure injection displacement stiffening pile anchor construction method |
| CN110847161A (en) * | 2019-09-27 | 2020-02-28 | 河北工程大学 | Supporting disc pile device suitable for muddy soft soil and construction process thereof |
-
1993
- 1993-10-06 CN CN 93115834 patent/CN1101392A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306121C (en) * | 2004-08-05 | 2007-03-21 | 陈佳训 | Method for pile foundation construction of geologic structure with flow plastic half-flow plastic and its application apparatus |
| CN100453744C (en) * | 2005-11-17 | 2009-01-21 | 郑雄 | Underwater compact concrete construction method |
| CN101876171A (en) * | 2010-04-29 | 2010-11-03 | 中交隧道工程局有限公司 | New method for water washing and decomposing to break pile head of bridge pile foundation |
| CN101876171B (en) * | 2010-04-29 | 2014-10-22 | 中交隧道工程局有限公司 | New method for water washing and decomposing to break pile head of bridge pile foundation |
| CN103174130A (en) * | 2011-12-21 | 2013-06-26 | 中国建筑第四工程局有限公司 | Anti-sloughing method of sand layer of impact-cone concrete pile |
| CN103174130B (en) * | 2011-12-21 | 2016-06-22 | 中国建筑第四工程局有限公司 | A kind of layer of sand anti-collapse method of Punching Borehole Cast-in-place Concrete Pile |
| CN102704466A (en) * | 2012-05-16 | 2012-10-03 | 苏州市伦琴工业设计有限公司 | Pile manufacturing method in buildings |
| CN102704466B (en) * | 2012-05-16 | 2014-07-30 | 四川鑫圆建设集团有限公司 | Pile manufacturing method in buildings |
| CN106812473A (en) * | 2017-02-10 | 2017-06-09 | 上海强劲地基工程股份有限公司 | Churning drilling tool with helical blade and pressure injection displacement stiffening pile anchor construction method |
| CN110847161A (en) * | 2019-09-27 | 2020-02-28 | 河北工程大学 | Supporting disc pile device suitable for muddy soft soil and construction process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |