CN1062045C - Dusting stirring extruding compact pile forming technology - Google Patents
Dusting stirring extruding compact pile forming technology Download PDFInfo
- Publication number
- CN1062045C CN1062045C CN 97119862 CN97119862A CN1062045C CN 1062045 C CN1062045 C CN 1062045C CN 97119862 CN97119862 CN 97119862 CN 97119862 A CN97119862 A CN 97119862A CN 1062045 C CN1062045 C CN 1062045C
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- CN
- China
- Prior art keywords
- drilling rod
- pile
- hole
- aggregate
- spiral
- 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
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Abstract
The present invention provides technology for the filed cast of concrete piles in foundation engineering. The present invention is characterized in that a spiral driller drills holes in the mode of positive rotation and then rotates reversely; when the spiral driller rotates reversely, skeletal material is added and squeezed to be dense, and powdery material is injected from a drill tip through a drill rod central hole by using compressed air; the skeletal material, the powdery material and interstitial water are sufficiently stirred through the reverse rotation of blades and squeezed into a pile. The pile formation process of the technology is continuous, and the spiral driller rotates reversely to squeeze the material from the bottom of a hole to the top of the pile step by step; therefore, the technology can overcome the defects of constriction, pile breakage, separation, hole bottom sediment, etc. The present invention has the advantages of high quality of pile bodies, little cement consumption quantity and low cost, and is particularly suitable for low-intensity concrete piles.
Description
The present invention relates to the technology of in-site pouring concrete in the Foundation Design or similar concrete pile, especially build stake without mould-pipe or other template.
At present, the method for in-site pouring concrete pile has perfusion in the immersed tube pipe, catheter perfusion, pressure injection.Tube-sinking cast-in-situ pile is a method of using vibration or hammering, and steel pipe is sunk in the soil, and concrete perfusion in pipe falls into the hole pile with concrete by the pipe end during tube drawing then, and its defective is big, the easy broken pile of vibrating noise, is unsuitable for constructing in the urban district.
The catheter perfusion stake is to utilize conduit concrete to be poured into the method for pile in the boring behind the pore-forming, the shortcoming of this method is that the tube drawing height be difficult for to be grasped, and forms defectives such as broken pile, necking down, segregation, folder mud, sediment are thick easily, because of the need concrete flowability big, cement consumption is big, the cost height.
The pressure injection stake be with press water mud, mortar or concrete by the drilling rod center by the apex point injection hole that falls at the bottom of the hole at the bottom of, the slurry that the water in the hole is injected into ejects ground, drops into aggregate then, to the stake top.China's patent gazette disclosed application number on June 14th, 95 is 93120641.3, name is called " piling technology by depositing concrete into cement slurry in hole ", on April 21st, 95 disclosed application number be 93115834.6, to be called " process of stake on the perfusion reinforced concrete " be exactly two examples to name.The defective of pressure injection stake is that required concrete flowability is higher, and cement consumption is more, waste is big, cost is high.
The technology that the purpose of this invention is to provide the in-site pouring concrete pile that a kind of cost is low, pile quality is high, easy to operation.
Technical scheme of the present invention is: just changing into the hole with auger machine, not blocked for guaranteeing bit nozzle, in pore-forming and whereabouts drilling rod process, be blown into compressed air by the drilling rod center, aggregate is sent into compacted from the stake hole by helical blade during counter-rotating, and then the pulverulent material of cement and mixing thereof sent into by apex point by the drilling rod centre bore with compressed air spray, aggregate, pulverulent material and interstitial water are fully stirred by the counter-rotating of drilling rod blade and are compacted, compacted along with filler, drilling rod slowly rises, and all forms until pile body.
Owing to take technique scheme, counter-rotating by the rig blade, it is compacted that aggregate, powder and interstitial water are fully stirred, form harder concrete, because of formation of pile auger machine counter-rotating compacted continuously to the stake top at the bottom of being, so can overcome drawback such as sediment at the bottom of concrete pile necking down, broken pile, segregation, the hole, the pile quality height, especially more suitable to Low Intensity Concrete Piles.Comparing with the pressure injection stake, is not free-flowing material because of what add, and required cement consumption is few, and cost is low; Cause does not adopt conduit, immersed tube etc., so labour intensity is low, and is easy and simple to handle.
Further describe below in conjunction with embodiments of the invention:
Embodiment:
1, it is meter dark that auger machine is just being changeed boring to 10, in boring, be blown into compressed air, 2, drilling rod is proposed to remove clean earth, put a funnel in aperture, stake hole, again drilling rod is fallen, 3, when falling, continues by drilling rod in the drilling rod centre bore, to be blown into compressed air with non-fouling nozzle, after drilling rod drops down onto at the bottom of the hole, drilling rod is reversed, the blade that reaches by counter-rotating from the stake hole different stone of particle diameter of packing into simultaneously, the aggregate that aggregate chips or coarse sand are formed, discharge the part water in the aggregate in the compacted process, the drilling rod counter-rotating sprays into every cubic metre of 210 kilograms of No. 325 dry powder cement by the drilling rod centre bore more then, the drilling rod blade that continues counter-rotating is with pulverulent material, aggregate, and the interstitial water between aggregate fully stirs and compacted 4, the drilling rod of counter-rotating is slowly risen, continue filler again and form until pile body.
Claims (1)
1, a kind of job practices of in situ pile, it comprises the steps: a, auger machine just changeed holing to desired depth, at pore-forming be lowered in the process of drilling rod and be blown into compressed air by the drilling rod center, b, drilling rod is proposed to remove clean earth, drilling rod is fallen at the bottom of the hole again, c, drilling rod is reversed, it is compacted to send into aggregate from the stake hole by blade simultaneously, d, spray into the pulverulent material of cement or its compound by the drilling rod centre bore, the drilling rod blade that continues counter-rotating is with pulverulent material, aggregate, and the interstitial water between aggregate fully stirs and compacted e, along with filler, drilling rod slowly rises, and all forms until pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97119862 CN1062045C (en) | 1997-12-26 | 1997-12-26 | Dusting stirring extruding compact pile forming technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97119862 CN1062045C (en) | 1997-12-26 | 1997-12-26 | Dusting stirring extruding compact pile forming technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1186891A CN1186891A (en) | 1998-07-08 |
| CN1062045C true CN1062045C (en) | 2001-02-14 |
Family
ID=5175623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97119862 Expired - Fee Related CN1062045C (en) | 1997-12-26 | 1997-12-26 | Dusting stirring extruding compact pile forming technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062045C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307262C (en) * | 2003-01-10 | 2007-03-28 | 中国科学院成都有机化学研究所 | Nano high-molecular microsphere with conductivity and magnetism and its preparation method |
| EP2213802B1 (en) * | 2009-02-02 | 2012-10-10 | BAUER Maschinen GmbH | Supply device for supplying concrete and glass into the drill ribbon of a drilling device when creating a concrete borehole and method for setting a concrete borehole |
| CN105649053A (en) * | 2016-02-05 | 2016-06-08 | 沙焕焕 | Construction method of multielement stiffness composite pile |
-
1997
- 1997-12-26 CN CN 97119862 patent/CN1062045C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1186891A (en) | 1998-07-08 |
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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 |