CN1143032C - Dry construction composite filling pile - Google Patents
Dry construction composite filling pile Download PDFInfo
- Publication number
- CN1143032C CN1143032C CNB981174329A CN98117432A CN1143032C CN 1143032 C CN1143032 C CN 1143032C CN B981174329 A CNB981174329 A CN B981174329A CN 98117432 A CN98117432 A CN 98117432A CN 1143032 C CN1143032 C CN 1143032C
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- China
- Prior art keywords
- pile
- soil
- stake
- dry construction
- composite filling
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- 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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- Y02T10/144—
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- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a dry construction composite filling pile. Firstly, an annular stirrer is used for grouting under pressure in a pile forming position, and a soil-cement water stopping closed casing tube is made by stirring. After at least five days, dry construction for taking soil to form a hole is implemented in a sleeve barrel by a spiral drill or a rotary drilling machine, or a grab bucket drill. A reinforcing cage is placed into a drilling hole, and concrete is poured to form a dry construction composite filling pile. The present invention overcomes the disadvantages of a traditional mud off filling pile of uncivil construction, environmental pollution, etc., and pile bearing capacity is weakened by deposit and mud cakes. The present invention can be used for building foundation piles, and enhance the bearing capacity of a pile foundation; the present invention can also be used for foundation pit supporting row piles, and implement a soil retaining function and a water stopping function.
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 stake mixer stir a cement-soil that forms intercept water in ring stake, the ring stake reinforcing cage and form with the concrete core stake that the ring stake is built together, thickening is widened in going to the bottom of ring stake, forms sealing and enlarges the end.
Described stake core diameter is 400～800mm.
Described ring stake thickness is 200～400mm.
The job practices of dry construction composite filling pile, its operation is:
(1), utilize annular stake mixing arm, 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), carry brill, and the limit carries and bores the marginal not slurry and stir, and makes thus and expands the ring stake that intercepts water of end cartridge type cement-soil;
(5), adopt spiral drilling machine or rotary drilling rig in the ring stake, to carry out at least after three 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 special agitator to make intercept water ring stake of cement-soil, 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 stake of cement-soil outer shroud 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 stake of cement-soil ring 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 800～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 ring stake thickness.Utilize the mutual interlock of adjacent studs cement-soil ring stake, 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 agitating procedure schematic diagram on the mixer.
Fig. 5 is the cement-soil closed-loop stake schematic diagram that intercepts water.
Fig. 6 is the cement-soil pore-forming schematic diagram in the closed-loop stake that intercepts water.
Fig. 7 is the structural representation of dry construction composite filling pile under water.
As shown in the figure, dry construction composite filling pile, pile body by annular stake mixer stir a cement-soil that forms intercept water in ring stake 1, the ring stake reinforcing cage 2 and form with the concrete core stake 3 that the ring stake is built together, core stake diameter is optional between 400～800mm, ring stake thickness is optional between 200～400mm, thickening is widened in going to the bottom of ring stake, 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 band curved baffle blade of drilling rod bottom and creeping into downwards; (2), by be placed in defeated slurry conduit in the drilling rod with the high pressure slurries by the ejection of the hole of blade downside, mix and stir with soil while rotate, form the ring-type cement earth pile, mould the shape cement-soil through the softening stream of disturbance and can reduce with the frictional resistance of drilling rod and resist moment of torsion, be easy to creep into; (3), when special 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 ring stake bottom closure and form enlarged footing; (4), promote drilling rod, and the limit carries marginal not slurry limit and stirs, 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 to carry out in the ring stake and is done the operation soil taking hole forming about (5) five days; (6), in boring, place reinforcing cage, placing of concrete, form dry construction composite filling pile under water.
Claims (4)
1, a kind of dry construction composite filling pile, 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 core stake that sleeve is built together, cement-soil the going to the bottom of sealing sleeve of intercepting water widened thickening, forms sealing and enlarges the end.
2, dry construction composite filling pile according to claim 1 is characterized in that: described stake core diameter is 400～800mm.
3, dry construction composite filling pile according to claim 1 is characterized in that: described cement-soil intercepts water and encircles stake thickness is 200～400mm.
4, the job practices of dry construction composite filling pile, its operation is as follows:
(1), utilize the agitator rotation to earth drilling;
(2), drilling process is implemented the slip casting stirring;
(3), carry brill;
(4), the limit is carried and is bored the stirring of marginal not slurry;
(5), in boring, place reinforcing cage, placing of concrete, form castinplace pile, it is characterized in that:
In operation (2) afterwards, in one meter scope of foot of hole, implement to increase slurry and press added-time slip casting to stir, form closed enlarged footing;
After at least three days of operation (4), adopt spiral drilling machine or rotary drilling rig in the ring stake, to carry out and do the operation soil taking hole forming, implement operation (5) then.
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 CN1245849A (en) | 2000-03-01 |
| CN1143032C true 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) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
1998
- 1998-08-21 CN CNB981174329A patent/CN1143032C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1245849A (en) | 2000-03-01 |
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| CF01 | Termination of patent right due to non-payment of annual fee |