CN104453705A - Secondary forming method for large-hole-diameter cast-in-place pile rotary drilling rig - Google Patents
Secondary forming method for large-hole-diameter cast-in-place pile rotary drilling rig Download PDFInfo
- Publication number
- CN104453705A CN104453705A CN201410649186.3A CN201410649186A CN104453705A CN 104453705 A CN104453705 A CN 104453705A CN 201410649186 A CN201410649186 A CN 201410649186A CN 104453705 A CN104453705 A CN 104453705A
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- Prior art keywords
- diameter
- rotary drilling
- steel pile
- pile casting
- minor diameter
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- 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
- E21B7/00—Special methods or apparatus for drilling
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
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- 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
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- 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
- E21B3/00—Rotary drilling
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Paleontology (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a secondary forming method for a large-hole-diameter cast-in-place pile rotary drilling rig. The method includes the steps that firstly, a pile site central point is measured and let out, positioning piles are led out to the periphery, and a small-diameter lengthened steel pile casting is placed downwards and follows the protective wall of a hole passage in the whole course; a small-diameter rotary drilling bit is selected for drilling operation, after hole forming of small-diameter piles is conducted, the small-diameter lengthened steel pile casting is quickly recycled, a large-diameter lengthened steel pile casting is placed downwards for whole-course following, a large-diameter rotary drilling bit replaces the small-diameter rotary drilling bit for secondary broaching, the small-diameter rotary drilling bit and the large-diameter rotary drilling bit are combined for use, only the rotary drilling bits need to be replaced for construction, procedure conversion is finished, the construction method is simple, and procedure conversion time is short. The method is suitable for construction in any geological region, the problems of limitation of the geological condition, the hole diameter and the like in large-hole-diameter rotary drilling construction are effectively solved, and the secondary forming method is simple, convenient to implement, feasible and small in construction safety risks; cost is low, and the hole forming speed is high.
Description
Technical field
The present invention relates to bored concrete pile foundation drilling construction method, be specially complicated geological environment large pore castinplace pile rotary drilling rig secondary hole forming method, belong to road and bridge construction field.
Background technology
For a long time in road and bridge construction, large-diameter borehole castinplace pile all adopts Churn drill or abrasion drill equal aperture drill bit drilling and forming hole method, and rate of penetration is slow, and efficiency of construction is low, and construction cost costly.Rotary drilling rig equipment technology development is in recent years very fast, has the advantage that rate of penetration is fast, efficiency of construction is high, cost is low.But in bored pile construction, if meet the geological conditionss such as all kinds of complex formation, karst landform, and the lower construction of the Special field condition such as large aperture restriction, the construction of rotary drilling rig one-step pore-creating will be subject to certain restrictions, urgent need will create a kind of new large-diameter borehole construction method, and does not still find the correlation technique report of this respect at present.
Summary of the invention
The object of the invention is to overcome the limitation existing for a drilling and forming hole method and defect, and disclose a kind of large aperture castinplace pile rotary drilling rig secondary hole forming method, to solve the technical barrier that complicated geological environment large pore bored pile runs into.
The technical solution adopted in the present invention is as follows:
A. first determine that field condition and ground are surveyed after data coincide, measure and release stake position central point, draw guide pile by central point to surrounding, driller insertion, transfer minor diameter lengthening steel pile casting;
B. select minor diameter churning driven head at the uniform velocity to creep in artificial earth fill's layer, it is duct retaining wall that minor diameter lengthens the follow-up of steel pile casting whole process;
C., after minor diameter churning driven head passes through artificial earth fill's layer, earth's surface is fixed minor diameter and is lengthened steel pile casting, makes it to continue to creep into and slippage because of duct;
D. use instead when penetrating artificial earth fill's layer and meeting rock stratum to revolve and dig the body head that spuds in and continue to creep into;
When e. meeting cavern layer, measure actual solution cavity cavity height, for subsequent construction is prepared;
F. after Small Diameter Pile pore-forming, first reclaim rapidly minor diameter and lengthen steel pile casting, more lower magnifying diameter lengthens steel pile casting, then uses major diameter churning driven head second reaming instead, major diameter lengthens the follow-up of steel pile casting whole process until pore-forming completes.
The present invention has the following advantages: be combined with major diameter churning driven head by minor diameter churning driven head, only must exchange the construction of churning driven head, and just complete operation conversion, construction method is simple, and operation is shorter for conversion time; Be applicable to what geologic area construction in office, effectively solve by the restricted problem such as geological conditions, aperture in the construction of churning driven large aperture, simple and easy to do, construction safety risk is little; Using in churning driven construction at large-diameter borehole castinplace pile only needs many uses major diameter churning driven head just can meet construction aperture requirement, and cost is low and speed of fulfiling hole is fast.
Accompanying drawing explanation
Accompanying drawing 1 for the present invention adopt minor diameter churning driven head construct schematic cross-section.
Accompanying drawing 2 for the present invention adopt revolve dig body spud in head construction schematic cross-section.
Accompanying drawing 3 adopts major diameter churning driven head reaming schematic cross-section for the present invention.
Description of reference numerals is as follows:
Fill stratum 1, minor diameter lengthens steel pile casting 2, minor diameter churning driven head 3, rock stratum 4, cavern layer 5, revolves to dig body and spud in 6, and major diameter lengthens steel pile casting 7, major diameter churning driven head 8.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail: and the present embodiment can not be used for limiting the present invention:
A. first determine field condition and ground survey data identical after, measure and release stake position central point, guide pile is drawn to surrounding by central point, driller insertion, transfer minor diameter and lengthen steel pile casting (2), guide pile adopts " right-angled intersection method " redefine stake position central point and check with churning driven bit central point, and control errors is in claimed range;
B. select minor diameter churning driven head (3) at the uniform velocity to creep in artificial earth fill's layer (1), minor diameter lengthens steel pile casting (2) and often saves long 3m, adopts segmentation welding spreading, and in drilling process, omnidistance follow-up is duct retaining wall;
C., after minor diameter churning driven head (3) passes through artificial earth fill's layer (1), minor diameter lengthens steel pile casting (2) top system steel cable and is fixed on the i iron place that two embed earth's surface, makes it to continue to creep into and slippage because of duct;
D. use instead when penetrating artificial earth fill's layer (1) and meeting rock stratum (4) to revolve and dig the body head (6) that spuds in and continue to creep into;
E. in drilling process, monitor rig drilling speed and unearthed slag specimen at any time, when meeting cavern layer (5), measure actual cavern layer (5) cavity height, check geologic information and confirm to conform to design;
F. after Small Diameter Pile pore-forming, first use loop wheel machine to reclaim rapidly minor diameter and lengthen steel pile casting (2), magnifying diameter is descended to lengthen steel pile casting (7) again, it is the basil that major diameter lengthens steel pile casting (8) bottom, then use major diameter churning driven head (8) second reaming instead, major diameter lengthens the follow-up of steel pile casting (7) whole process until pore-forming completes.
Claims (2)
1. large aperture castinplace pile rotary drilling rig secondary hole forming method, is characterized in that adopted technical scheme is as follows:
A. first determine that field condition and ground are surveyed after data coincide, measure and release stake position central point, draw guide pile by central point to surrounding, driller insertion, transfer minor diameter lengthening steel pile casting;
B. select minor diameter churning driven head at the uniform velocity to creep in artificial earth fill's layer, it is duct retaining wall that minor diameter lengthens the follow-up of steel pile casting whole process;
C., after minor diameter churning driven head passes through artificial earth fill's layer, earth's surface is fixed minor diameter and is lengthened steel pile casting, makes it to continue to creep into and slippage because of duct;
D. use instead when penetrating artificial earth fill's layer and meeting rock stratum to revolve and dig the body head that spuds in and continue to creep into;
When e. meeting cavern layer, measure actual solution cavity cavity height, for subsequent construction is prepared;
F. after Small Diameter Pile pore-forming, first reclaim rapidly minor diameter and lengthen steel pile casting, more lower magnifying diameter lengthens steel pile casting, then uses major diameter churning driven head second reaming instead, major diameter lengthens the follow-up of steel pile casting whole process until pore-forming completes.
2. large aperture according to claim 1 castinplace pile rotary drilling rig secondary hole forming method, is characterized in that:
A. transfer minor diameter and lengthen steel pile casting, guide pile adopts " right-angled intersection method " redefine stake position central point and check with churning driven bit central point, and control errors is in claimed range;
B. minor diameter lengthens steel pile casting and often saves long 3m, adopts segmentation welding spreading, and in drilling process, omnidistance follow-up is duct retaining wall;
C. minor diameter lengthens the i iron place that steel pile casting top system steel cable is fixed on two embedding earth's surfaces, makes it to continue to creep into and slippage because of duct;
E. in drilling process, monitor rig drilling speed and unearthed slag specimen at any time, check geologic information and confirm to conform to design;
F. major diameter lengthens bottom steel pile casting is the basil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649186.3A CN104453705B (en) | 2014-11-14 | 2014-11-14 | Secondary forming method for large-hole-diameter cast-in-place pile rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649186.3A CN104453705B (en) | 2014-11-14 | 2014-11-14 | Secondary forming method for large-hole-diameter cast-in-place pile rotary drilling rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104453705A true CN104453705A (en) | 2015-03-25 |
| CN104453705B CN104453705B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410649186.3A Active CN104453705B (en) | 2014-11-14 | 2014-11-14 | Secondary forming method for large-hole-diameter cast-in-place pile rotary drilling rig |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700479A (en) * | 2017-08-25 | 2018-02-16 | 中铁上海工程局集团第五工程有限公司 | A kind of construction method of large diameter drill hole pile |
| CN107905236A (en) * | 2017-11-10 | 2018-04-13 | 中铁隧道集团处有限公司 | The construction method of friction pile churning driven fast pore-creating and concrete placings |
| CN109183815A (en) * | 2018-10-11 | 2019-01-11 | 深圳市工勘岩土集团有限公司 | The shield-tube embedment method of major diameter rotary digging bored concrete pile |
| CN109778844A (en) * | 2019-03-19 | 2019-05-21 | 云南路桥股份有限公司 | Bridge super-large diameter pile foundation reaming construction technology |
| CN111561262A (en) * | 2020-05-29 | 2020-08-21 | 贵州建工集团第一建筑工程有限责任公司 | Hole forming method of rotary drilling rig for large-size pile hole in karst area |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101705684A (en) * | 2009-11-13 | 2010-05-12 | 中铁大桥局集团第四工程有限公司 | Method for sinking steel protecting canister for drilled pile construction |
| CN102995631A (en) * | 2011-09-09 | 2013-03-27 | 五冶集团上海有限公司 | Trepanning pore-forming construction method of cast-in-place pile |
| CN103088814A (en) * | 2013-02-27 | 2013-05-08 | 路桥华祥国际工程有限公司 | Rotary drilling rig coordinated with percussion drill hole-forming construction method |
| CN103628511A (en) * | 2013-12-17 | 2014-03-12 | 中铁大桥局集团第四工程有限公司 | Setting-out plumbing method for pile foundation casing |
| CN203569561U (en) * | 2013-11-20 | 2014-04-30 | 广州市建筑科学研究院有限公司 | Novel pile forming device of steel pipe protection wall cast-in-place piles following up drill |
-
2014
- 2014-11-14 CN CN201410649186.3A patent/CN104453705B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705684A (en) * | 2009-11-13 | 2010-05-12 | 中铁大桥局集团第四工程有限公司 | Method for sinking steel protecting canister for drilled pile construction |
| CN102995631A (en) * | 2011-09-09 | 2013-03-27 | 五冶集团上海有限公司 | Trepanning pore-forming construction method of cast-in-place pile |
| CN103088814A (en) * | 2013-02-27 | 2013-05-08 | 路桥华祥国际工程有限公司 | Rotary drilling rig coordinated with percussion drill hole-forming construction method |
| CN203569561U (en) * | 2013-11-20 | 2014-04-30 | 广州市建筑科学研究院有限公司 | Novel pile forming device of steel pipe protection wall cast-in-place piles following up drill |
| CN103628511A (en) * | 2013-12-17 | 2014-03-12 | 中铁大桥局集团第四工程有限公司 | Setting-out plumbing method for pile foundation casing |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700479A (en) * | 2017-08-25 | 2018-02-16 | 中铁上海工程局集团第五工程有限公司 | A kind of construction method of large diameter drill hole pile |
| CN107905236A (en) * | 2017-11-10 | 2018-04-13 | 中铁隧道集团处有限公司 | The construction method of friction pile churning driven fast pore-creating and concrete placings |
| CN109183815A (en) * | 2018-10-11 | 2019-01-11 | 深圳市工勘岩土集团有限公司 | The shield-tube embedment method of major diameter rotary digging bored concrete pile |
| CN109183815B (en) * | 2018-10-11 | 2021-04-23 | 深圳市工勘岩土集团有限公司 | Pile casing embedding method for large-diameter rotary-digging cast-in-place pile |
| CN109778844A (en) * | 2019-03-19 | 2019-05-21 | 云南路桥股份有限公司 | Bridge super-large diameter pile foundation reaming construction technology |
| CN111561262A (en) * | 2020-05-29 | 2020-08-21 | 贵州建工集团第一建筑工程有限责任公司 | Hole forming method of rotary drilling rig for large-size pile hole in karst area |
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| Publication number | Publication date |
|---|---|
| CN104453705B (en) | 2017-01-25 |
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