CN1245849A - Dry construction composite filling pile - Google Patents
Dry construction composite filling pile Download PDFInfo
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- CN1245849A CN1245849A CN 98117432 CN98117432A CN1245849A CN 1245849 A CN1245849 A CN 1245849A CN 98117432 CN98117432 CN 98117432 CN 98117432 A CN98117432 A CN 98117432A CN 1245849 A CN1245849 A CN 1245849A
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- pile
- soil
- dry construction
- composite filling
- sleeve
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- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a dry operating composite bored concrete pile. It includes the following steps: firstly, using ring-type stirring machine to pressure inject grount at the pile-forming position, and stirring to make a cement-soil cut off closed casing; at least after five days, adopting spiral drill or revolving excavator drill or grab drill to make dry operating borrow and form bore in the casing; placing steel reinforcement cage in the bored hole and pouring concrete so as to form the invented dry operating composite bored concrete pile. Said invention can be used as base pile for building to raise load-bearing capacity of pile base, and also can be used as row of support piles of foundation pit so as to implement double functions of retaining soil and stopping water.
Description
The present invention relates to a kind of construction work foundation castinplace pile.
Traditional castinplace pile is to adopt the rig pore-forming in natural stratum, lays reinforcing cage, concrete perfusion subsequently and pile need adopt mud off method pore-forming pile when the pile body scope has underground water.For this castinplace pile of being made by steel concrete, its bearing capacity depends on pile shaft material intensity and stake end stake side soil strength.
The purpose of this invention is to provide a kind of dry construction composite filling pile, increase pile side resistance and stake side surface area, both can be used for building foundation, improve the bearing capacity of pile foundation, can be used for the pattern foundation pit supporting structure campshed again, realize retaining soil and the dual-use function that intercepts water.
The technical scheme of dry construction composite filling pile of the present invention: comprise the cylindricality pile body, it is characterized in that: pile body by annular mixer stir the cement-soil that forms intercept water in sealing sleeve, the sleeve reinforcing cage and form with the concrete pile core that sleeve is built together.
Described stake core diameter is 600～1200mm.
Described sleeve thickness is 200～400mm.
Thickening is widened in going to the bottom of described sleeve, forms the sealing end.
The job practices of dry construction composite filling pile, its operation is:
The job practices of dry construction composite filling pile, its operation is as follows:
(1), utilize annular agitator bottom helical blade, deadweight and electronic rotation to creep into to underground;
(2), drilling process is implemented the slip casing by pressure stirring;
(3), implement to increase slurry in the one meter scope in bottom and press added-time slip casting to stir, form closed enlarged footing;
(4), counter-rotating carries brill, and the limit carries and bores the marginal not slurry and stir, and makes thus and expands the end cartridge type cement-soil sealing sleeve that intercepts water;
(5), adopt spiral drilling machine or rotary drilling rig or grab bucket rig in sleeve, to carry out at least after five days and do the operation soil taking hole forming;
(6), in boring, place reinforcing cage, placing of concrete, formation dry construction composite filling pile.
The advantage of castinplace pile mainly is such two aspects: the one, and adopt the cartridge type agitator to make the cement-soil sleeve that intercepts water, thereby practicable dried operation pore-forming pile avoid discharging mud contamination environment and the sediment mud skin weaken effect to bearing capacity of single pile; The 2nd, by cement-soil outer sleeve and steel concrete pile body, form composite pile, form stake-cement-soil-native Load Transfer system, can improve the bearing mechanism of stake, the collateral resistance that makes traditional homogenous material stake is by shear strength restriction between stake soil, change into by the shear strength restriction (effective diameter of stake strengthens) between the shear strength between concrete pile body and cement-soil (the unit collateral resistance strengthens) or cement-soil sleeve and the soil, thereby the bearing capacity of stake is significantly improved, and avoid contaminated environment, realize civilized construction.
Dry construction composite filling pile both can be used for building foundation, improved the bearing capacity of pile foundation, can be used for the pattern foundation pit supporting structure campshed again, realized retaining soil and the dual-use function that intercepts water.Can in following two kinds of situations, use: the one, groundwater table height, stake footpath φ 600～φ 1200, long building, the bridge pile foundation plinth that is no more than 25m of stake; The 2nd, be applicable to the pattern foundation pit supporting structure campshed that the groundwater table height need intercept water, pile center is apart from being no more than steel concrete pile body diameter+cement-soil sleeve thickness.Utilize the mutual interlock of adjacent studs cement-soil sleeve, make compound campshed realize retaining soil and the dual-use function that intercepts water, save engineering cost, the reduction of erection time.
Below in conjunction with drawings and Examples the present invention is described in detail:
Fig. 1 is that mixer is just changeing driller's preface schematic diagram down.
Fig. 2 is a mixer slip casting agitating procedure schematic diagram.
Fig. 3 is that basic skill or training's preface schematic diagram is expanded in the sealing of mixer supercharging added-time.
Fig. 4 pulls out the operation schematic diagram in the mixer counter-rotating.
Fig. 5 is the cement-soil sealing sleeve schematic diagram that intercepts water.
Fig. 6 is the cement-soil pore-forming schematic diagram in the sealing sleeve that intercepts water.
Fig. 7 is the structural representation of dry construction composite filling pile.
As shown in the figure, dry construction composite filling pile, pile body are to be stirred by annular mixer to form Soil cement intercept water in the sealing sleeve 1, sleeve steel reinforcement cage 2 and build together with sleeve Concrete-pile core 3 forms, and the stake core diameter is optional between 600～1200mm, and sleeve is thick Degree is optional between 200～400mm, and thickening is widened in going to the bottom of sleeve, forms the sealing end.
Construction embodiment of the present invention is: the electronic rotation at (1), the following power of letting out, drilling tool deadweight and the drilling rod top that produce during by the rotation of the helical blade of cartridge type drilling rod bottom and creeping into downwards; (2), by the defeated slurry conduit that is placed in stack shell the aperture of high pressure slurries by the blade downside sprayed, mix and stir with soil while rotating, form ring-type cement-soil tube, mould the shape cement-soil through the softening stream of disturbance and can reduce frictional resistance and opposing moment of torsion with the cartridge type drilling rod, be easy to creep into; (3), when cartridge type agitator end during from the about 1m of projected depth, strengthen more than the grouting pressure 0.5MPa, strengthen grouting amount and slip casting radius, and the added-time stirred 3～5 minutes, make cement-soil sleeve bottom closure and form enlarged footing; (4), counter-rotating promotes the cartridge type drilling rod, and the limit carries the marginal not slurry, the cement factor that further strengthens cement-soil than and uniformity.Special-purpose slurry stiring device is adopted in the preparation of cartridge type cement piling process cement grout, and the slurry water gray scale gets 0.6～1.0, and saturated soil is got low value, and unsaturated soil is got high value; When hard and pile time is long when the stratum soil property, still should add retarding agent.The back is adopted long (weak point) spiral drilling machine or rotary drilling rig or grab bucket rig to carry out in sleeve and is done the operation soil taking hole forming about (5) five days; (6), in boring, place reinforcing cage, placing of concrete, formation dry construction composite filling pile.
Claims (5)
1, a kind of dry construction composite filling pile comprises the cylindricality pile body, it is characterized in that: pile body by annular mixer stir the cement-soil that forms intercept water in sealing sleeve, the sleeve reinforcing cage and form with the concrete pile core that sleeve is built together.
2, dry construction composite filling pile according to claim 1 is characterized in that: described stake core diameter is 600～1200mm.
3, dry construction composite filling pile according to claim 1 is characterized in that: the described cement-soil sealing sleeve thickness that intercepts water is 200～400mm.
4, dry construction composite filling pile according to claim 1 is characterized in that: described cement-soil the going to the bottom of sealing sleeve of intercepting water widened thickening, forms the sealing end.
5, the job practices of dry construction composite filling pile, its operation is as follows:
(1), utilize annular agitator bottom helical blade, deadweight and electronic rotation to creep into to underground;
(2), drilling process is implemented the slip casing by pressure stirring;
(3), implement to increase slurry in the one meter scope in bottom and press added-time slip casting to stir, form closed enlarged footing;
(4), counter-rotating carries brill, and the limit carries and bores the marginal not slurry and stir, and makes the cartridge type cement-soil sealing sleeve that intercepts water thus;
(5), adopt spiral drilling machine or rotary drilling rig or grab bucket rig in sleeve, to carry out at least after five days and do the operation soil taking hole forming;
(6), in boring, place reinforcing cage, placing of concrete, formation dry construction composite filling pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981174329A CN1143032C (en) | 1998-08-21 | 1998-08-21 | Dry construction composite filling pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981174329A CN1143032C (en) | 1998-08-21 | 1998-08-21 | Dry construction composite filling pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1245849A true CN1245849A (en) | 2000-03-01 |
| CN1143032C CN1143032C (en) | 2004-03-24 |
Family
ID=5225519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981174329A Expired - Fee Related CN1143032C (en) | 1998-08-21 | 1998-08-21 | Dry construction composite filling pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1143032C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266597A (en) * | 2012-07-31 | 2013-08-28 | 广东省基础工程公司 | Cemented soil retaining dado cast-in-place row pile and construction method thereof |
| CN106894425A (en) * | 2017-03-11 | 2017-06-27 | 窦春晓 | A kind of conjuncted CS pile tubes foundation pit supporting construction of major diameter and its construction method |
| CN107975058A (en) * | 2017-10-12 | 2018-05-01 | 川户嗣成 | A kind of special base expanding and base expanding engineering method of EST full-sleeves |
| CN108914992A (en) * | 2018-07-25 | 2018-11-30 | 周惠荣 | A kind of pile foundation endurance detection device with drop resistant function |
| CN112064623A (en) * | 2020-08-07 | 2020-12-11 | 王继忠 | Construction method of carrier pile |
| CN114606933A (en) * | 2022-01-28 | 2022-06-10 | 赵关保 | Concrete filling pile for reinforcing pile bottom by adopting cement-soil mixing pile and construction method |
-
1998
- 1998-08-21 CN CNB981174329A patent/CN1143032C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266597A (en) * | 2012-07-31 | 2013-08-28 | 广东省基础工程公司 | Cemented soil retaining dado cast-in-place row pile and construction method thereof |
| CN103266597B (en) * | 2012-07-31 | 2015-09-23 | 广东省基础工程集团有限公司 | A kind of cement-soil retaining wall perfusion campshed and construction method thereof |
| CN106894425A (en) * | 2017-03-11 | 2017-06-27 | 窦春晓 | A kind of conjuncted CS pile tubes foundation pit supporting construction of major diameter and its construction method |
| CN107975058A (en) * | 2017-10-12 | 2018-05-01 | 川户嗣成 | A kind of special base expanding and base expanding engineering method of EST full-sleeves |
| CN108914992A (en) * | 2018-07-25 | 2018-11-30 | 周惠荣 | A kind of pile foundation endurance detection device with drop resistant function |
| CN112064623A (en) * | 2020-08-07 | 2020-12-11 | 王继忠 | Construction method of carrier pile |
| CN114606933A (en) * | 2022-01-28 | 2022-06-10 | 赵关保 | Concrete filling pile for reinforcing pile bottom by adopting cement-soil mixing pile and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1143032C (en) | 2004-03-24 |
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| CF01 | Termination of patent right due to non-payment of annual fee |