CN107447751A - Marine enrockment area bored concrete pile spillage control device and method - Google Patents
Marine enrockment area bored concrete pile spillage control device and method Download PDFInfo
- Publication number
- CN107447751A CN107447751A CN201710711657.2A CN201710711657A CN107447751A CN 107447751 A CN107447751 A CN 107447751A CN 201710711657 A CN201710711657 A CN 201710711657A CN 107447751 A CN107447751 A CN 107447751A
- Authority
- CN
- China
- Prior art keywords
- mud pit
- mud
- rig
- marine
- bored concrete
- 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.)
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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
- E02D5/40—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds in open water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/0023—Slurry
Abstract
The present invention relates to a kind of marine enrockment area bored concrete pile spillage control device and method, the device to include：Small mud pit, big mud pit, the sieves in big mud pit being connected via pipeline and slush pump with small mud pit, the drilling rod hole that big mud pit enters pipeline and rig via mud is connected, and its medium and small mud pit is connected by pipeline with the perforate on the steel pile casting for the rig for being higher by construction time peak level certain distance above.The present invention reduces caused by the head differential pressure spillage at steel pile casting base opening and drift sand formation, reduces the pile foundation pore-forming time and ensure that the quality of pile using head difference inside and outside casing is reduced.
Description
Technical field
The present invention relates to a kind of marine enrockment area bored concrete pile spillage control device and method.
Background technology
At sea during the cast-in-situ bored pile of enrockment area, because design stake top absolute altitude differs larger (8 meters or so of the discrepancy in elevation) with sea level
And pile foundation is in marine enrockment area, pile foundation steel pile casting can not buried depth it is oversize, casing coating is relatively thin, in pile foundation construction process
Head difference is excessive inside and outside middle casing, the spillage easily at steel pile casting base opening and drift sand formation, cause slurry coat method proportion reduce, from
Analysis, makes body refuse in hole not exclude normally, bottom hole sediment is blocked up, makes the pile measurement for pouring completion unqualified.Spillage and spillage
Slurry coat method proportion is caused to reduce, isolation.
The content of the invention
Based on above mentioned problem, inventor has made intensive studies, as a result find by be higher by construction time peak level with
On steel pile casting on perforate, reduce hole in mud liquid level, so as to reduce head difference inside and outside casing, reduce caused by head differential pressure
Spillage at steel pile casting base opening and drift sand formation, ensures the proportion and denseness of mud in hole, and then ensure that the quality of pile.
It is an object of the present invention to provide a kind of marine enrockment area bored concrete pile spillage control device, the device includes：It is small
Mud pit, big mud pit, the sieves in big mud pit being connected via pipeline and slush pump with small mud pit, big mud
The drilling rod hole that pond enters pipeline and rig via mud connects, and its medium and small mud pit is by pipeline and is higher by construction time peak level
Certain distance above (for example, peak level above 0.5-3m, preferably 1-2.5m, more preferably at 1.2-2m, such as 1.5m)
Perforate connection on the steel pile casting of rig.
Further, the volume of small mud pit can be 8-100 cubic meters, preferably 20-80 cubic meters, the body of big mud pit
Product can be 150-1000 cubic meters, preferably 500-800 cubic meters.
Further, mesh size used in step (2) filtering is 30-140 mesh, preferably 50-100 mesh.
It is a further object to provide marine enrockment area bored concrete pile spillage control method to comprise the following steps：(1)
It is being higher by construction time peak level certain distance above (for example, peak level above 0.5-3m, preferably 1-2.5m, first
It is preferred that at 1.2-2m, such as 1.5m) rig steel pile casting on perforate, aperture can be 1-10cm, preferably 3-5cm, and steel is protected
Mud liquid level is reduced (such as to construction time peak level above 0.5-3m, more preferably preferably 1-2.5m, 1.2-2m, example in bore
At 1.5m), to reduce head difference inside and outside casing, reduce mud pressure in hole；
(2) one small mud pit is set in tapping, the big mud pit that mud is extracted into construction platform with slush pump enters
Row filtering, oversize feeds back to the drilling rod hole of rig again, to ensure the proportion of mud and denseness, enable in hole body refuse effectively with
Mud is smoothly discharged.Screenings is most water and fine deposit, can be discharged.
This technology mainly reduces head difference inside and outside casing, reduces steel pile casting base opening and drift sand formation caused by head differential pressure
Locate spillage, ensure the proportion and denseness of mud in hole, and then ensure that the quality of pile.
The technology mainly using head difference inside and outside casing is reduced, reduces steel pile casting base opening and stream caused by head differential pressure
Spillage at sand bed, reduce the pile foundation pore-forming time and ensure that the quality of pile.
Brief description of the drawings
Fig. 1 is the structural representation of the marine enrockment area bored concrete pile spillage control device of the present invention.
Description of reference numerals：
1：Rig；2：Steel pile casting；3：Filling pile construction platform；4：Perforate；5：Small mud pit；6：Mud return duct；7：Greatly
Mud pit；8：Mud enters pipeline；9：Riprap layer；10：Water level.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing, it should be understood, however, that the following description is given for example only
The purpose of property, does not form any limitation of the invention.
As shown in figure 1, rig 1 is arranged on the filling pile construction platform 3 of riprap layer 9, it is high on the steel pile casting 2 of rig 1
Go out construction time peak level certain distance above (for example, peak level above 0.5-3m, more preferably preferably 1-2.5m, 1.2-
At 2m, such as 1.5m) perforate 4 is set, perforate 4 connects small mud pit 5, and small mud pit 5 is via mud return duct 6 and slush pump
(not shown) is connected with big mud pit 7, in big mud pit set sieves (not shown), big mud pit 7 via
Mud is connected into pipeline 8 with the drilling rod hole of rig 1.
Comprised the following steps using said apparatus sea enrockment area bored concrete pile spillage control method：
(1) construction time peak level certain distance above is being higher by first, for example, peak level above 0.5-3m, excellent
1-2.5m is selected, the steel pile casting of the rig more preferably at 1.2-2m, such as 1.5m opens 1-10cm, preferably 3-5cm diameters hole, will
Mud liquid level is reduced for example to construction time peak level above 0.5-3m, more preferably preferably 1-2.5m, 1.2-2m in steel pile casting hole,
Such as at 1.5m), to reduce head difference inside and outside casing, reduce mud pressure in hole；
(2) one small mud pit is set in tapping, the big mud pit that mud is extracted into construction platform with slush pump enters
Row filtering, oversize feeds back to borer drill rod hole again, to ensure the proportion of mud and denseness, enables in hole body refuse effectively with mud
Slurry smoothly discharge.
Embodiment 1
Using the device shown in Fig. 1, opened first in the steel pile casting for the rig being higher by construction time peak level above 1.5m
3cm diametric holes, mud liquid level in steel pile casting hole is reduced for example at construction time peak level above 1.5m, to reduce in casing
Outer head difference, reduce mud pressure in hole；
About 30 cubic metres of small mud pits of one volume are set in tapping, mud is extracted into construction platform with slush pump
The about 150 cubic metres big mud pit of volume is filtered, and the mesh of aperture 50 of filtering sieve, sieves sets bottom, and oversize returns again
The defeated drilling rod hole to rig rig, to ensure the proportion of mud and denseness, body refuse in hole is set effectively smoothly to be discharged with mud.
As a result, do not open up hole compared to steel pile casting and in fairlead mud the drilling of conventional bored concrete pile, at steel pile casting base opening and drift sand formation
Spillage significantly reduces, and the pile foundation pore-forming time reduces about 1/3 and ensure that pile quality is excellent.
Embodiment 2
Using the device shown in Fig. 1, opened first in the steel pile casting for the rig being higher by construction time peak level above 1.8m
6cm diametric holes, mud liquid level in steel pile casting hole is reduced for example at construction time peak level above 1.5m, to reduce in casing
Outer head difference, reduce mud pressure in hole；
About 10 cubic metres of small mud pits of one volume are set in tapping, mud is extracted into construction platform with slush pump
The about 300 cubic metres big mud pit of volume carries out the mesh of aperture 30 of Filtration Filtration sieve, and sieves sets bottom, and oversize is fed back again
To borer drill rod hole, to ensure the proportion of mud and denseness, body refuse in hole is set effectively smoothly to be discharged with mud.As a result, phase
Than do not open up hole in steel pile casting and in fairlead mud the drilling of conventional bored concrete pile, spillage is obvious at steel pile casting base opening and drift sand formation
Reduce, the pile foundation pore-forming time reduces about 1/3 and ensure that pile quality is excellent.
Claims (9)
1. a kind of marine enrockment area bored concrete pile spillage control device, the device include：Small mud pit, via pipeline and slush pump with
Big mud pit, the sieves in big mud pit of small mud pit connection, big mud pit enter pipeline and rig via mud
The connection of drilling rod hole, its medium and small mud pit passes through the steel of pipeline and the rig for being higher by construction time peak level certain distance above
Perforate connection on casing.
2. marine enrockment area bored concrete pile spillage control device according to claim 1, it is characterised in that small mud pit passes through
Pipeline is connected with the perforate on the steel pile casting for the rig being higher by construction time peak level above 0.5-3m.
3. marine enrockment area bored concrete pile spillage control device according to claim 1, it is characterised in that small mud pit passes through
Pipeline is connected with the perforate on the steel pile casting for the rig being higher by construction time peak level above 1.5m.
4. marine enrockment area bored concrete pile spillage control device according to claim 1, it is characterised in that the body of small mud pit
Product is 8-100 cubic meters, and the volume of big mud pit is 150-1000 cubic meters.
5. marine enrockment area bored concrete pile spillage control device according to claim 1, it is characterised in that the screen cloth of sieves
Aperture is 30-140 mesh.
6. a kind of marine enrockment area bored concrete pile spillage control method comprises the following steps：
(1) perforate on the steel pile casting of rig for being higher by construction time peak level certain distance above first, by steel pile casting hole
Interior mud liquid level reduces, and to reduce head difference inside and outside casing, reduces mud pressure in hole；
(2) one small mud pit is set in tapping, the big mud pit that mud is extracted into construction platform with slush pump was carried out
Filter, oversize feeds back to the drilling rod hole of rig again, to ensure the proportion of mud and denseness, enables in hole body refuse effectively with mud
Smoothly discharge.
7. according to the method for claim 6, it is characterised in that in the brill being higher by construction time peak level above 0.5-3m
Perforate on the steel pile casting of machine.
8. according to the method for claim 6, it is characterised in that in the rig being higher by construction time peak level above 1.5m
Steel pile casting on perforate.
9. according to the method for claim 6, it is characterised in that mesh size used in step (2) filtering is 30-140 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710711657.2A CN107447751B (en) | 2017-08-18 | 2017-08-18 | Slurry leakage control device and method for cast-in-place pile in offshore riprap area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710711657.2A CN107447751B (en) | 2017-08-18 | 2017-08-18 | Slurry leakage control device and method for cast-in-place pile in offshore riprap area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107447751A true CN107447751A (en) | 2017-12-08 |
| CN107447751B CN107447751B (en) | 2023-04-14 |
Family
ID=60492760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710711657.2A Active CN107447751B (en) | 2017-08-18 | 2017-08-18 | Slurry leakage control device and method for cast-in-place pile in offshore riprap area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107447751B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593879A (en) * | 2020-12-23 | 2021-04-02 | 湖南鼎盛基础工程有限公司 | Forced circulation method for foundation construction slurry |
| CN113216840A (en) * | 2021-05-18 | 2021-08-06 | 浙江交工集团股份有限公司 | Impact pore-forming ultra-long bored pile and construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736755A (en) * | 2009-12-15 | 2010-06-16 | 中交路桥华北工程有限公司 | Clean water hole pile foundation constructing method |
| CN106284313A (en) * | 2016-08-25 | 2017-01-04 | 陕西桩鑫建设工程有限公司 | Long spire based on circulating mud retaining wall is squeezed into rock filling pile construction method |
| CN207079574U (en) * | 2017-08-18 | 2018-03-09 | 新地能源工程技术有限公司 | Marine enrockment area bored concrete pile spillage control device |
-
2017
- 2017-08-18 CN CN201710711657.2A patent/CN107447751B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736755A (en) * | 2009-12-15 | 2010-06-16 | 中交路桥华北工程有限公司 | Clean water hole pile foundation constructing method |
| CN106284313A (en) * | 2016-08-25 | 2017-01-04 | 陕西桩鑫建设工程有限公司 | Long spire based on circulating mud retaining wall is squeezed into rock filling pile construction method |
| CN207079574U (en) * | 2017-08-18 | 2018-03-09 | 新地能源工程技术有限公司 | Marine enrockment area bored concrete pile spillage control device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593879A (en) * | 2020-12-23 | 2021-04-02 | 湖南鼎盛基础工程有限公司 | Forced circulation method for foundation construction slurry |
| CN113216840A (en) * | 2021-05-18 | 2021-08-06 | 浙江交工集团股份有限公司 | Impact pore-forming ultra-long bored pile and construction method |
| CN113216840B (en) * | 2021-05-18 | 2023-12-29 | 浙江交工集团股份有限公司 | Impact hole-forming ultra-long bored pile and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107447751B (en) | 2023-04-14 |
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