CN109469053A - Rotating steel tube stake and its application method suitable for coral island geology - Google Patents
Rotating steel tube stake and its application method suitable for coral island geology Download PDFInfo
- Publication number
- CN109469053A CN109469053A CN201811243038.6A CN201811243038A CN109469053A CN 109469053 A CN109469053 A CN 109469053A CN 201811243038 A CN201811243038 A CN 201811243038A CN 109469053 A CN109469053 A CN 109469053A
- Authority
- CN
- China
- Prior art keywords
- pile body
- sawtooth
- geology
- steel tube
- wall
- 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.)
- Granted
Links
- 235000014653 Carica parviflora Nutrition 0.000 title claims abstract description 42
- 241000243321 Cnidaria Species 0.000 title claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 26
- 239000010959 steel Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 239000002893 slag Substances 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000005553 drilling Methods 0.000 claims abstract description 9
- 239000002689 soil Substances 0.000 claims description 13
- 239000013049 sediment Substances 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- 241000883966 Astrophytum capricorne Species 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 abstract description 16
- 230000015572 biosynthetic process Effects 0.000 abstract description 11
- 238000007569 slipcasting Methods 0.000 abstract description 6
- 230000002708 enhancing effect Effects 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 244000132059 Carica parviflora Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008436 biogenesis Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/22—Placing by screwing down
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
- E02D2250/0076—Drilling
Abstract
The rotating steel tube stake and its application method that the invention discloses a kind of suitable for coral island geology, are related to field of ocean engineering, including cylindrical pile body, connect top cover and array sawtooth group.It squeezes into position using mainly comprise the steps that determining pile body；Annular drilling is broken, forms ring crush band；Simultaneously: be injected downwardly into mud along pile body outer wall, mix mud with disintegrating slag, along pile body inner wall at sawtooth group injecting compressed air, make pile body is inside and outside to form pressure difference, mixed mud and disintegrating slag rise and are discharged along pile body inner wall, in pile body inside and outside wall formation channel；After pile body reaches target position and disintegrating slag removing, slurries are injected along channel.The beneficial effects of the invention are as follows; utmostly reduce the disturbance to calcareous Flooding in Borehole; protection calcareous sand earth formation stability creates slip casting channel simultaneously, is aided with slurry injection technique and steel-pipe pile and calcareous Flooding in Borehole are combined closely, to enhance formation strength and enhancing foundation bearing capacity.
Description
Technical field
The present invention relates to field of ocean engineering, the rock-reinforcing and basis for being related to coral island geology are carried, especially
It is a kind of rotating steel tube stake and its application method suitable for coral island geology.
Background technique
Coral reef be by reef-building coral group it is dead after, remains are carried by destroying, accumulation and it is cementing the effects of and
The Special Rock body of formation, main component are calcium carbonate, and stratum is mostly made of calcareous sand.Due to its special biogenesis,
Coral reef ground have density is low, porous, easily broken, high compression, it is structural it is strong, brittleness is big, intensity anisotropy and
Intergranular is also easy to produce the engineering characteristics such as cementing phenomenon, in addition the influence of periphery Seawater, cause itself and conventional land ground it
Between exist very big otherness.According to detection, islands and reefs ground is mostly made of calcareous sand, and particle matter is crisp, in shear action (as hung down
Straight downward injection) under will lead to a large amount of Particle Breakage, fracture and the intergranular grinding of gravel corner angle largely effect on calcareous
The mechanics bearer properties of sand, ground performance indicator, such as foundation bearing capacity permissible value, pile side friction standard value etc. is all compared
It is lower in common land performances of rock index, leverage the resistance to plucking for squeezing into pile foundation, anti-bending bearing capacity.A large amount of test and
Case history shows that the pile foundation pile forming method based on conventional ground geology is not applicable in malm.
In addition, pile forming method is affected to pile side friction.Since calcareous sand soil compaction encryption effect is unobvious, driven pile
The pile side friction and end resistance of base are lower, and it is low that this directly results in coral reef ground calcareous sand bearing capacity of pile foundation.Therefore, change
Become traditional pile mode to avoid calcareous to islands and reefs calcareous sand Particle Breakage and structure extent of the destruction when reducing injection early period pile foundation
Flooding in Borehole is broken the danger even collapsed because of huge stress recurring structure；Later period is aided with slurry injection technique, and hardening slurry material is led to
It crosses near slip casting machine injection pile foundation inside formation particles, enhancing formation strength is reduced by tubular pole and solidification of the foundation at an entirety
Stratum permeability prevents ground from sedimentation, deformation failure occurs, this is the important research direction for solving current problem, is directed at present
The pile foundation construction method of coral reef geology is less.
" steel-pipe pile suitable for the coral reef geology " patent and the patent No. of patent No. CN201620547227.2
The method taken in " steel-pipe pile and its grouting method that are adapted to coral reef geology " patent of CN201610403979.6 is to bore
Hole is perfused pile-formation process, patent focus on to describe to squeeze into after steel pipe how consolidation by grouting is held with improving basis in coral reef geology
Carry power.
" suitable for deep water and the steel pipe composite pile of the coral reef geology basis " of patent No. CN201610383294.X is specially
Benefit, describes a kind of concrete pile body and the increase steel pile casting structure outside pile body, increases foundation bearing capacity especially to reach
The purpose of horizontal bearing capacity.
Although the above method can partially improve later period coral reef geology pile foundation plinth bearing capacity, brill early period is all had ignored
To coral reef the disturbance of layer soil body even structural damage when machine drill hole, this has coral reef geology pile foundation plinth bearing capacity
Highly important influence.
Summary of the invention
It is excessive to coral reef stratum malm Particle Breakage the purpose of the invention is to when installing steel-pipe pile, knot
Structure destroys seriously, causes driven pile install failure or pile rear perimeter edge calcareous sand earth formation unstable, bearing capacity is excessively low to ask
Topic, devises a kind of rotating steel tube stake and its application method suitable for coral island geology.
Realize above-mentioned purpose the technical scheme is that, a kind of rotating steel tube stake suitable for coral island geology, packet
Cylindrical pile body is included, the pile body is hollow form；Top cover is connected, the top of the pile body is set to, it is dynamic for connecting rotation
Power equipment, reacting cycle suction device and grouting equipment；Array sawtooth group, is set to the bottom end of the pile body, for being crushed and boring
Into stratum.
Further, the sawtooth group includes interior sawtooth and outer sawtooth, and the inside of pile body is arranged in the interior sawtooth, described
The outside of pile body is arranged in outer sawtooth, and the interior sawtooth and outer sawtooth form inverted goat's horn shape.
Further, the side wall oblique angle of the outer top margin of the outer sawtooth and pile body be arranged, the outer top margin of the interior sawtooth with
The side wall oblique angle of pile body is arranged.
Further, the side wall oblique angle of the outer top margin of the outer sawtooth and pile body is 45° angle, the outer top margin of the interior sawtooth
Side wall oblique angle with pile body is 45° angle.
Further, the sawtooth group further includes middle sawtooth, and the underface of pile body side wall is arranged in the middle sawtooth.
Further, the connection top cover is external thread cap.
Further, the quantity of the sawtooth group is 6.
Further, the wall thickness of the pile body and outer diameter ratio are 0.05-0.2.
A kind of application method of the rotating steel tube stake suitable for coral island geology, comprising the following steps:
A: pile body is installed on external impetus mechanical device using connection top cover, determine pile body squeezes into position；
B: it is broken using sawtooth group to coral reef layer soil body progress annular drilling, form ring crush band；Simultaneously: along stake
External wall is injected downwardly into mud, mixes mud with disintegrating slag, along pile body inner wall at sawtooth group injecting compressed air, make in pile body
Outer formation pressure difference, mixed mud and disintegrating slag rise and are discharged along pile body inner wall, form channel in pile body inside and outside wall；
C: after pile body reaches target position and disintegrating slag removing, stop injection mud, slurries are injected along channel, to channel aperture
Stop injection slurries after overflowing slurries；
D: pile body and external impetus mechanical device are separated.
Further, in the step B, mixed mud and disintegrating slag are collected into sedimentation basin, precipitated through slurry sediment pool net
After change, recycled mud.
The beneficial effects of the present invention are: rotary drilling, which can reduce down, passes through resistance, effectively reduces primitive period over the ground and enclose calcareous sand
Soil layer disturbance and structure are destroyed；Steel-pipe pile borehole cleaning deslagging, pressure can make mud fine particle penetrate into calcareous sand gap, fill up knot
The bearing capacity of soil is stayed at structure slight gap, enhancing center.After creeping into borehole cleaning, slip casting channel is formed, injects slurries along channel, into
Row grouting and reinforcing enhances coral reef formation strength, improves foundation bearing capacity.Utmostly reduce the disturbance to calcareous Flooding in Borehole,
Protection calcareous sand earth formation stability creates slip casting channel simultaneously, is aided with slurry injection technique steel-pipe pile and calcareous Flooding in Borehole is tight
Close combination, to enhance formation strength and enhancing foundation bearing capacity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the application steel-pipe pile；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the cross-sectional view in Fig. 2 at A-A.
Fig. 4 is the status diagram bored under steel-pipe pile；
Fig. 5 is the status diagram that steel-pipe pile scarfing cinder terminates；
Fig. 6 is the status diagram of steel tube pile grouting.
In above each figure, 1, steel-pipe pile；2, top cover is connected；3, sawtooth group；31, interior sawtooth；32, outer sawtooth；33, middle saw
Tooth.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to specific embodiment, structure, feature and its effect according to the present invention, detailed description are as follows:
A kind of rotating steel tube stake suitable for coral island geology, as shown in Figure 1 to Figure 3, the pile body 1 including cylinder,
The pile body 1 is hollow form, and for hollow pile body for injecting slurry, the stake mouth size and pile wall thickness of the pile body 1 regard Practical Project
It needs to determine, according to test, the wall thickness and outer diameter ratio of pile body 1 are 0.05-0.2, can be had a better effect.In pile body
1 top setting connection top cover 2, the connection top cover 2 is for connecting external rotating power equipment, reacting cycle suction device and slip casting
Equipment can be external thread cap, and the direction that is rotated down of the pile body 1 should be identical with the connection locking direction of top cover 2, to prevent
Pile body 1 falls off during being rotated down.
Array sawtooth group 3 is set in the bottom end of pile body 1, is used to be crushed and creep into stratum.The sawtooth group 3 is disposable
Disposable broached-tooth design, is welded on the bottom end of pile body 1, and tip is downward.The sawtooth group 3 includes interior sawtooth 31 and outer sawtooth
32, the inside of pile body 1 is arranged in interior sawtooth 31, and the outside of pile body 1 is arranged in outer sawtooth 32, neglect the bore of pile body greatly and
Determine, about 1%-the 10% of pile body bore, interior sawtooth 31 and outer sawtooth 32 are in inverted-triangular, 32 shape of interior sawtooth 31 and outer sawtooth
At inverted goat's horn shape, the outer top margin of outer sawtooth 32 and the side wall oblique angle of pile body 1 are arranged, the outer top margin and pile body 1 of interior sawtooth 31
Side wall oblique angle setting, above-mentioned oblique angle be 45 ° of oblique angles can be designed according to the actual situation, do not do specific limit herein
It is fixed.Pile body 1 during being rotated down, cut coral reef geology, in the two sides of its side wall by the two sides of 1 side wall of pile body
It is respectively formed an annular chamber, guarantees that the pile lining periphery soil body is all broken with this, promotes steel-pipe pile penetrating speed, guarantees pile matter
Amount saves the construction time.In figure, the quantity of sawtooth group 3 is 6, the quantity need according to the material of sawtooth group 3, structure and
The multiple factors such as coral reef account for.On the basis of the above, the sawtooth group 3 further includes middle sawtooth 33, the middle sawtooth
33 are arranged in the underface of 1 side wall of pile body, form radial brill angle with interior sawtooth 31 and outer sawtooth 32, improve pile body 1
Lower brill effect.
The rotating steel tube stake when in use, is installed in one and is capable of providing in the power device being rotated down just.
In steel-pipe pile rotary drilling, the soil body, rotary drilling are closed in broken steel-pipe pile tube wall two sides, hence it is evident that resistance are passed through under reduction, simultaneously
The calcareous Flooding in Borehole original structure of original coral reef is utmostly protected, avoids stratum calcareous sand structure by enormous impact stress
When structural break, prevent pile inclination even failure, while keeping coral reef stratum original structure integrality, improve later period basis
Bearing capacity.
For the rotating steel tube stake of the application, a kind of application method is provided, main thought is: with steel-pipe pile itself work
For boring mechanism, simplify process；Pile body rotary drilling had not only reduced and has passed through resistance under tubular pole, but also can effectively reduce to around brill hole
The disturbance of stratum calcareous sand soil layer and structure are destroyed, and avoid influencing other adjacent locations piles；Outside and bottom setting saw in tube wall
Toothing can be crushed the soil body inside and outside tube wall；Drilling carries out simultaneously with borehole cleaning process；After steel-pipe pile inside and outside wall and bottom
Portion forms slip casting channel, injects slurries along channel, in conjunction with steel pipe center, bottom and external foundation soil body, enhancing coral reef
Layer intensity, improves foundation bearing capacity, specifically refers to fig. 4 to fig. 6, comprising the following steps:
A: pile body 1 is installed on external impetus mechanical device using connection top cover 2, determine pile body 1 squeezes into position.
B: it is broken using to coral reef the layer soil body progress annular drilling of sawtooth group 3, form ring crush band；Simultaneously: edge
1 outer wall of pile body is injected downwardly into mud, mixes mud with disintegrating slag, through air compressor, along 1 inner wall of pile body at sawtooth group 3
Injecting compressed air makes pile body 1 is inside and outside to form pressure difference, and mixed mud and disintegrating slag rise and are discharged along 1 inner wall of pile body,
1 inside and outside wall of pile body forms channel." apparent density " gas also smaller than mud, sand, pulp mixture are formed in steel-pipe pile, make steel pipe
Stake is inside and outside to form biggish pressure difference, and the mud pressure in outside pushes gas, sand, pulp mixture and portion's mud one on the inside of steel-pipe pile
It rises and rises and be discharged along steel-pipe pile inner wall, to achieve the effect that remove pile bottom sediment.During borehole cleaning, mud mixed liquor is huge
It is flowed up from bottom to top along 1 inner wall of pile body under big pressure effect, in flow process, the fine particle in mud is acted in pressure
Under penetrate into it is that 1 inside center of pile body is not broken, retain complete calcareous sand earth pillar, fill up the structure hole of calcareous sand, to
After later period solidification, its intensity and bearing capacity are improved, and this method, compared with other borehole cleanings change paste-making method, required equipment is simple, mud
Slurry dosage is minimum, and the time is most fast, preferably to operate under the coral island environment far from land, and borehole cleaning ability will not be with hole
Deep increase and occur sharply declining.In this step, to save mud, cost is reduced, mixed mud and disintegrating slag are collected
To sedimentation basin, after slurry sediment pool precipitation and purification, recycled mud, to form complete mud circulating system.
C: after pile body 1 reaches target position and disintegrating slag removing, stop injection mud, in steel-pipe pile tube wall two sides and its bottom
The inner wall interstitial channels without disintegrating slag are formed, replacement high-pressure grouting equipment injects slurries along channel, keeps slurries downward along inner wall channel
Portion's injection is simultaneously penetrated into steel duct ground, when filling to bottom end under slurries, flows into outer wall through 3 structural void of bottom sawtooth group
Channel side, under the action of high pressure, a part is penetrated into outer wall side and the lower part soil body, and another part is upward along outer wall channel
Sprawling filling stops injection slurries to surface of stratum.Steel-pipe pile is integral in conjunction with coral island stratum, to improve ground
Bearing capacity.
D: pile body 1 and external impetus mechanical device are separated, and steel-pipe pile is installed.
On this basis, mobile each equipment carries out next root canal pile driving construction.
Above with reference to preferred embodiment, invention has been described, but protection scope of the present invention is not restricted to
This can carry out various improvement to it and can be replaced wherein with equivalent without departing from the scope of the invention
Component, as long as be not present structural conflict, it is mentioned in the various embodiments items technical characteristic can combine in any way
Get up, and any reference signs in the claims should not be construed as limiting the involved claims, no matter comes from which point
It sees, the present embodiments are to be considered as illustrative and not restrictive.Therefore, any to fall within the scope of the appended claims
All technical solutions be within the scope of the invention.
Claims (10)
1. a kind of rotating steel tube stake suitable for coral island geology, which is characterized in that including
Cylindrical pile body (1), the pile body (1) are hollow form；
Connect top cover (2), be set to the top of the pile body (1), for connect rotating power equipment, reacting cycle suction device and
Grouting equipment；
Array sawtooth group (3), is set to the bottom end of the pile body (1), for being crushed and creeping into stratum.
2. the rotating steel tube stake according to claim 1 suitable for coral island geology, which is characterized in that the sawtooth group
It (3) include interior sawtooth (31) and outer sawtooth (32), the interior sawtooth (31) is arranged in the inside of pile body (1), the outer sawtooth
(32) setting forms inverted goat's horn shape in the outside of pile body (1), the interior sawtooth (31) and outer sawtooth (32).
3. the rotating steel tube stake according to claim 1 suitable for coral island geology, which is characterized in that the outer sawtooth
(32) the side wall oblique angle of outer top margin and pile body (1) is arranged, the outer top margin of the interior sawtooth (31) and the side wall oblique angle of pile body (1)
Setting.
4. the rotating steel tube stake according to claim 3 suitable for coral island geology, which is characterized in that the outer sawtooth
(32) the side wall oblique angle of outer top margin and pile body (1) is 45° angle, the outer top margin of the interior sawtooth (31) and the side wall of pile body (1)
Oblique angle is 45° angle.
5. the rotating steel tube stake according to claim 1 suitable for coral island geology, which is characterized in that the sawtooth group
It (3) further include middle sawtooth (33), the middle sawtooth (33) is arranged in the underface of pile body (1) side wall.
6. the rotating steel tube stake according to claim 1 suitable for coral island geology, which is characterized in that the connection top
Covering (2) is external thread cap.
7. the rotating steel tube stake according to claim 1 suitable for coral island geology, which is characterized in that the sawtooth group
(3) quantity is 6.
8. the rotating steel tube stake according to claim 1 suitable for coral island geology, which is characterized in that the pile body
(1) wall thickness and outer diameter ratio is 0.05-0.2.
9. a kind of application method of the rotating steel tube stake described in claim 1 suitable for coral island geology, which is characterized in that
The following steps are included:
A: pile body (1) is installed on external impetus mechanical device using connection top cover (2), determine pile body (1) squeezes into position；
B: it is broken using sawtooth group (3) to coral reef layer soil body progress annular drilling, form ring crush band；Simultaneously:
Along pile body (1), outer wall is injected downwardly into mud, mixes mud with disintegrating slag,
Along pile body (1) inner wall at sawtooth group (3) injecting compressed air, make pile body (1) is inside and outside to form pressure difference,
Mixed mud and disintegrating slag rise and are discharged along pile body (1) inner wall, form channel in pile body (1) inside and outside wall；
C: after pile body (1) reaches target position and disintegrating slag removing, stop injection mud, slurries are injected along channel, to channel aperture
Stop injection slurries after overflowing slurries；
D: pile body (1) is separated with external impetus mechanical device.
10. application method according to claim 9, which is characterized in that in the step B, by mixed mud with it is broken
Slag is collected into sedimentation basin, after slurry sediment pool precipitation and purification, recycled mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811243038.6A CN109469053B (en) | 2018-10-24 | 2018-10-24 | Rotary steel pipe pile suitable for coral island geology and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811243038.6A CN109469053B (en) | 2018-10-24 | 2018-10-24 | Rotary steel pipe pile suitable for coral island geology and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109469053A true CN109469053A (en) | 2019-03-15 |
| CN109469053B CN109469053B (en) | 2024-01-02 |
Family
ID=65664147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811243038.6A Active CN109469053B (en) | 2018-10-24 | 2018-10-24 | Rotary steel pipe pile suitable for coral island geology and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469053B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535307A (en) * | 2020-05-22 | 2020-08-14 | 河北建设勘察研究院有限公司 | Hole forming construction method for rotary drilling cast-in-place pile in reef limestone stratum |
| CN112431195A (en) * | 2020-11-03 | 2021-03-02 | 广西高远建筑科技股份有限公司 | Novel grouting construction method for pile planting of tubular pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10266196A (en) * | 1997-03-28 | 1998-10-06 | Tenox Corp | Installation method for pipe and steel pipe pile, and steel pipe pile |
| CN203655291U (en) * | 2013-11-29 | 2014-06-18 | 北京市三一重机有限公司 | Cutting pick holder component and a cutting pick barrel drill |
| CN104603366A (en) * | 2012-08-29 | 2015-05-06 | 大和房屋工业株式会社 | Method for constructing knotted cast-in-place concrete-based pile, and excavation blade-equipped steel pipe |
| CN107574816A (en) * | 2017-09-14 | 2018-01-12 | 广西大学 | Detachable rotation type drilling pile tube and construction method |
| CN210086237U (en) * | 2018-10-24 | 2020-02-18 | 中国海洋大学 | Rotating steel pipe pile suitable for coral island reef geology |
-
2018
- 2018-10-24 CN CN201811243038.6A patent/CN109469053B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10266196A (en) * | 1997-03-28 | 1998-10-06 | Tenox Corp | Installation method for pipe and steel pipe pile, and steel pipe pile |
| CN104603366A (en) * | 2012-08-29 | 2015-05-06 | 大和房屋工业株式会社 | Method for constructing knotted cast-in-place concrete-based pile, and excavation blade-equipped steel pipe |
| CN203655291U (en) * | 2013-11-29 | 2014-06-18 | 北京市三一重机有限公司 | Cutting pick holder component and a cutting pick barrel drill |
| CN107574816A (en) * | 2017-09-14 | 2018-01-12 | 广西大学 | Detachable rotation type drilling pile tube and construction method |
| CN210086237U (en) * | 2018-10-24 | 2020-02-18 | 中国海洋大学 | Rotating steel pipe pile suitable for coral island reef geology |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535307A (en) * | 2020-05-22 | 2020-08-14 | 河北建设勘察研究院有限公司 | Hole forming construction method for rotary drilling cast-in-place pile in reef limestone stratum |
| CN112431195A (en) * | 2020-11-03 | 2021-03-02 | 广西高远建筑科技股份有限公司 | Novel grouting construction method for pile planting of tubular pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109469053B (en) | 2024-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101532290B (en) | Granule grouting pile of ripple plastic sleeve with hole for strengthening soft soil foundation and strengthening method | |
| CN104453913B (en) | A kind of Shaft Stopes front pre-grouting method | |
| CN101736738B (en) | Production method of pressure resistance and pull-out resistance grouted gravel pile | |
| CN100519951C (en) | Construction method for increasing dry auger boring pouring pile bearing capacity | |
| CN102505684A (en) | Hollow stiffness-core slurry-solidified discrete material pile and construction method thereof | |
| CN113529721B (en) | Combined drilling and grouting pipe for grouting reinforcement of island reef weak stratum and construction method | |
| CN105178285B (en) | A kind of method for expanding ground grouting and reinforcing and antiseepage extent of congestion | |
| CN103993594B (en) | A kind of micro-nano bubble process can liquefied foundation device and working method | |
| CN105672311B (en) | The construction method of anchor pole | |
| CN102011399A (en) | PHC pile-based multiple high jet pedestal pile construction method | |
| CN107513995A (en) | A kind of bridge struction pile post grouting construction method | |
| CN105672307A (en) | Expanded-base combination end pile bearing foundation | |
| CN109469053A (en) | Rotating steel tube stake and its application method suitable for coral island geology | |
| CN110939137A (en) | Vibration drainage anchor rod supporting structure for sand soil layer and construction method thereof | |
| CN112627162A (en) | Drainage stiffening core composite pile based on geopolymer grouting and construction method thereof | |
| CN106638579A (en) | Construction method of coral sand foundation expanding cement mortar injection pile | |
| CN208472705U (en) | It is a kind of can slip casting prefabricated pile and application this can slip casting prefabricated pile support construction | |
| CN208201874U (en) | A kind of open-cell cloth bag grouting structure | |
| CN106761841B (en) | Working face tailgate fractured coal grouting reinforcement method | |
| CN210086237U (en) | Rotating steel pipe pile suitable for coral island reef geology | |
| CN205444232U (en) | Stock - gravity type infiltration retaining wall | |
| CN201411687Y (en) | Corrugated plastic sleeve pipe granule grouting pile with hole | |
| CN208563316U (en) | A kind of large-section in-situ concrete pile pile-end sediment sediment processing unit | |
| CN201202114Y (en) | Bearing pile | |
| CN110512667A (en) | It is a kind of to handle because water damage leads to the new method of pile foundation settlement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |