CN105951748B - A kind of drilling tool - Google Patents
A kind of drilling tool Download PDFInfo
- Publication number
- CN105951748B CN105951748B CN201610363534.XA CN201610363534A CN105951748B CN 105951748 B CN105951748 B CN 105951748B CN 201610363534 A CN201610363534 A CN 201610363534A CN 105951748 B CN105951748 B CN 105951748B
- Authority
- CN
- China
- Prior art keywords
- inner cylinder
- outer barrel
- drilling tool
- pile
- flaring
- 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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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 8
- 239000011440 grout Substances 0.000 abstract description 7
- 239000002689 soil Substances 0.000 abstract description 7
- 230000008602 contraction Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005507 spraying Methods 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
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
- E21B10/327—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools the cutter being pivoted about a longitudinal axis
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides the construction methods and its drilling tool of a kind of hole-expanding pile and the hole-expanding pile.The hole-expanding pile includes pile foundation, is filled in the concrete-pile ontology and reamer of pile foundation, and the reamer includes from the pile foundation bottom pile foundation head extended to form, the grout layer for being covered in the pile foundation head inner wall, the concrete pile head being filled in the grout layer.It will be enlarged by the double-layer structure that head is set as inner barrel and outer barrel, flaring tooth is set to inner cylinder, and utilizes the rotation of the enlarged footing, the stretching and contraction of control flaring tooth, the flaring to different soil properties is completed, the structure design is simple, at low cost, effect is good, suitable for producing in batches and promoting the use of.
Description
【Technical field】
The present invention relates to build engineering field, and in particular to a kind of hole-expanding pile drilling tool.
【Background technology】
With the increase of building height, foundation pile length is stepped up, and the difficulty of pile foundation construction is also increasing.Existing stake
The bearing capacity of the bored concrete pile of foundation construction is mainly made of stake end soil resistance and Pile side soil frictional force；The enlarged footing of pile foundation makes
It is formed with cement high-pressure mortar spraying, however may be cannot be satisfied and be wanted using above-mentioned bored concrete pile under current complex geological condition
It asks.
Therefore, it is necessary to the construction method of the hole-expanding pile used under a kind of complex geological condition is provided and the hole-expanding pile and its
Drilling tool.
【Invention content】
The purpose of the present invention is to provide the construction methods and its drilling tool of a kind of hole-expanding pile and the hole-expanding pile.
Technical scheme is as follows：
A kind of hole-expanding pile, including pile foundation, the concrete-pile ontology and reamer that are filled in pile foundation, the reamer include certainly
Pile foundation head that the pile foundation bottom extends to form, is filled in the cement mortar at the grout layer for being covered in the pile foundation head inner wall
Concrete pile head in layer.
Preferably, the concrete-pile ontology and the concrete pile head one form.
A kind of construction method of hole-expanding pile, includes the following steps：
(1), drilling tool is provided, rotates in the forward direction using the drilling tool and drills to soil；
(2), when the drilling depth of the drilling tool reaches the predetermined depth of pile foundation, stop the drilling tool；
(3), the drilling tool includes the enlarged footing positioned at its bottom, and the enlarged footing tool flaring tooth and extending port pass through institute
Stating drilling rod drives the enlarged footing to reversely rotate, and the flaring tooth stretches out outward across the extending port, passes through the flaring
Tooth is enlarged pile foundation bottom, after forming pile foundation head, stops the drilling tool；
(4), it drives the enlarged footing to rotate in the forward direction again, the flaring tooth is made to be stretched into inwardly simultaneously across the extending port
After being contained in the extending port, stop the drilling tool；
(5), whitewashing is carried out to the inner wall of pile foundation head and forms grout layer；
(6), after the completion of whitewashing, by drilling tool, spiral shell goes out out of pile foundation, while successively to concrete perfusion in pile foundation head and pile foundation；
A kind of drilling tool, including the drilling rod of tool drill bit and the enlarged footing for being sheathed on the drill bit, the enlarged footing include flaring
Tooth, inner cylinder and the outer barrel for being sheathed on inner cylinder, and the inner cylinder and outer barrel interval setting, the inner cylinder includes clamping part, institute
It includes limiting section and extending port to state outer barrel, and the limiting section quantity is two and interval is formed on the inner peripheral of the outer barrel,
The clamping part is formed on the outer peripheral edge of the inner cylinder and is arranged between two limiting sections, the extending port be through
The through-hole of the outer barrel, the flaring tooth include extending with the movable interconnecting piece of the inner cylinder and from the interconnecting piece and being inserted into institute
State the expansion mouth of extending port.
Preferably, the drilling rod further includes sequentially connected ontology and borded pile, and the borded pile extends from the drill bit
It is formed, the ontology, borded pile and drill bit are arranged with central shaft.
Preferably, the inner cylinder and the outer barrel are the hollow cylinder with central shaft.
Preferably, the inner cylinder and the outer barrel are by the limiting section and the clamping part and in two limiting sections
Between circle arc length in reversed coaxial rotating.
Preferably, between two limiting sections circular arc string length be less than the expansion mouth length.
Preferably, by the relative rotation of the inner cylinder and the outer barrel, the expansion mouth is stretched along the extending port direction
Go out and shrinks.
Preferably, the limiting section is formed in same level with the clamping part.
The beneficial effects of the present invention are：
The double-layer structure that head is set as inner barrel and outer barrel is will be enlarged by, flaring tooth is set to inner cylinder, and utilize the expansion
Flaring to different soil properties is completed in the rotation of head, the stretching and contraction of control flaring tooth, and the structure design is simple, at low cost, effect
Fruit is good, suitable for producing in batches and promoting the use of.
【Description of the drawings】
Fig. 1 is the sectional view of hole-expanding pile of the present invention；
Fig. 2 is the structure chart of drilling tool of the present invention；
Fig. 3 is the sectional view of the enlarged footing use state one of drilling tool shown in Fig. 2；
Fig. 4 is the sectional view of the enlarged footing use state two of drilling tool shown in Fig. 2.
【Specific implementation mode】
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Please refer to Fig. 2 to Fig. 4, the present invention provides a kind of drilling tools 100, include the drilling rod 2 of tool drill bit 21.
The enlarged footing 1 includes flaring tooth 11, inner cylinder 12 and the outer barrel 13 for being sheathed on inner cylinder 12, and the inner cylinder 12 and institute
State the setting of the interval of outer barrel 13.
The inner cylinder 12 includes clamping part 121.
The outer barrel 13 includes limiting section 131 and extending port 133, and 131 quantity of the limiting section is two and interval is formed
In on the inner peripheral of the outer barrel 13, the clamping part 121 is formed on the outer peripheral edge of the inner cylinder and is arranged in described in two
Between limiting section 131, the extending port 133 is the through-hole through the outer barrel 13.
The flaring tooth 11 includes extending and inserting with 12 movable interconnecting piece 111 of the inner cylinder and from the interconnecting piece 111
Enter the expansion mouth 112 of the extending port 133.
The inner cylinder 12 and the outer barrel 13 are the hollow cylinder with central shaft；The inner cylinder 12 and the outer barrel 13 pass through
Reversed coaxial rotation in the limiting section 131 and the clamping part 121 and circle arc length between two limiting sections 131
Turn；Specifically, the length of circular arc string is less than the length of the expansion mouth 112 between two limiting sections 131.
By the relative rotation of the inner cylinder 12 and the outer barrel 13, the expansion mouth 112 is along 133 direction of the extending port
It stretches out and shrinks.
The limiting section 131 is formed in same level with the clamping part 121.
The outer barrel 13 is integrally formed；The inner cylinder 12 is integrally formed.
Further include hinge 14, the hinge 14 connects the flaring tooth 11 and the inner cylinder 12.
In the present embodiment, in figure 3, drilling rod drives the rotation counterclockwise of the inner cylinder 12, and the outer barrel 13 passes through described
Clamping part 121 rotates clockwise in the circle arc length between two limiting sections 131；Make 112 edge of the expansion mouth
It shrinks in 133 direction of the extending port.
In Fig. 4, drilling rod drives the inner cylinder 12 to rotate clockwise, and the outer barrel 13 is by the clamping part 121 two
It is rotated counterclockwise in circle arc length between a limiting section 131；So that the expansion mouth 112 is along the extending port 133
It shrinks in direction.
The drilling rod 2 further includes sequentially connected ontology 22 and borded pile 24, and the borded pile 24 prolongs from the drill bit 21
It stretches to be formed, the ontology 22, borded pile 24 and drill bit 21 are arranged with central shaft.
Referring to Fig. 1, the present invention also provides the hole-expanding pile 300 that a kind of application drilling tool 100 construction is completed, the reaming
Stake 300 includes pile foundation 31, is filled in the concrete-pile ontology 32 and and reamer 4 of pile foundation 31.
The reamer 4 includes the pile foundation head 41 extended to form from 31 bottom of the pile foundation, is covered in the pile foundation head 41
The grout layer 42 of inner wall, the concrete pile head 43 being filled in the grout layer 42.
In the present embodiment, the concrete-pile ontology 32 and the integrated form of the concrete pile head 43.
A kind of construction method of hole-expanding pile, includes the following steps：
(1), drilling tool is provided, rotates in the forward direction using the drilling tool and drills to soil；
(2), when the drilling depth of the drilling tool reaches the predetermined depth of pile foundation, stop the drilling tool；
(3), the drilling tool includes the enlarged footing positioned at its bottom, and the enlarged footing tool flaring tooth and extending port pass through institute
Stating drilling rod drives the enlarged footing to reversely rotate, and the flaring tooth stretches out outward across the extending port, passes through the flaring
Tooth is enlarged pile foundation bottom, after forming pile foundation head, stops the drilling tool；
(4), it drives the enlarged footing to rotate in the forward direction again, the flaring tooth is made to be stretched into inwardly simultaneously across the extending port
After being contained in the extending port, stop the drilling tool；
(5), whitewashing is carried out to the inner wall of pile foundation head and forms grout layer；
(6), after the completion of whitewashing, by drilling tool, spiral shell goes out out of pile foundation, while successively to concrete perfusion in pile foundation head and pile foundation.
The beneficial effects of the present invention are：The double-layer structure that head is set as inner barrel and outer barrel is will be enlarged by, flaring tooth is set to
Inner cylinder, and using the rotation of the enlarged footing, the flaring to different soil properties is completed in the stretching and contraction of control flaring tooth, should
Structure design is simple, at low cost, effect is good, suitable for producing in batches and promoting the use of.
Above-described is only embodiments of the present invention, it should be noted here that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, improvement can also be made, but these belong to the protection model of the present invention
It encloses.
Claims (7)
1. a kind of drilling tool, it is characterised in that：Including having the drilling rod of drill bit and being sheathed on the enlarged footing of the drill bit, the enlarged footing
Including flaring tooth, inner cylinder and the outer barrel for being sheathed on inner cylinder, and the inner cylinder and outer barrel interval setting, the inner cylinder include card
Buckle, the outer barrel include limiting section and extending port, and the limiting section quantity is two and interval is formed in the interior of the outer barrel
On periphery, the clamping part is formed on the outer peripheral edge of the inner cylinder and is arranged between two limiting sections, the stretching
Mouth is, through the through-hole of the outer barrel, the flaring tooth includes extending with the movable interconnecting piece of the inner cylinder and from the interconnecting piece
And it is inserted into the expansion mouth of the extending port.
2. drilling tool according to claim 1, it is characterised in that：The drilling rod further includes sequentially connected ontology and spiral
Column, the borded pile are extended to form from the drill bit, and the ontology, borded pile and drill bit are arranged with central shaft.
3. drilling tool according to claim 1, it is characterised in that：The inner cylinder and the outer barrel are the open circles with central shaft
Cylinder.
4. drilling tool according to claim 1, it is characterised in that：The inner cylinder and the outer barrel pass through the limiting section and institute
State reversed coaxial rotating in clamping part and circle arc length between two limiting sections.
5. drilling tool according to claim 1, it is characterised in that：The length of circular arc string is less than institute between two limiting sections
State the length of expansion mouth.
6. drilling tool according to claim 1, it is characterised in that：Pass through the relative rotation of the inner cylinder and the outer barrel, institute
Expansion mouth is stated to stretch out and shrink along the extending port direction.
7. drilling tool according to claim 1, it is characterised in that：The limiting section is formed in same flat with the clamping part
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610363534.XA CN105951748B (en) | 2016-05-27 | 2016-05-27 | A kind of drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610363534.XA CN105951748B (en) | 2016-05-27 | 2016-05-27 | A kind of drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105951748A CN105951748A (en) | 2016-09-21 |
| CN105951748B true CN105951748B (en) | 2018-10-09 |
Family
ID=56910979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610363534.XA Active CN105951748B (en) | 2016-05-27 | 2016-05-27 | A kind of drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105951748B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618114B (en) * | 2017-06-06 | 2024-07-09 | 宁波鼎科电器有限公司 | Double-rotation drill bit |
| CN108166495A (en) * | 2018-01-02 | 2018-06-15 | 深圳市勘察测绘院有限公司 | A kind of mounting structure and construction method for dregs slope retaining multistage bellend anchor pole |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1010489B (en) * | 1985-05-31 | 1990-11-21 | 东京制作所(株式会社) | Under reaming pile bore excavating bucket and method of its excavation |
| JP2652603B2 (en) * | 1992-07-02 | 1997-09-10 | 三谷セキサン株式会社 | Method of installing concrete pile in digging method, digging device of digging method, kneading device and digging blade |
| CN2744822Y (en) * | 2004-10-29 | 2005-12-07 | 辽河石油勘探局 | Safety locking device for hole-enlarging tool for drilling |
| CN102505919A (en) * | 2011-12-29 | 2012-06-20 | 山河智能装备股份有限公司 | Bearizing drilling bit |
| CN205907677U (en) * | 2016-05-27 | 2017-01-25 | 刘录怀 | Reaming stake and drilling tool thereof |
-
2016
- 2016-05-27 CN CN201610363534.XA patent/CN105951748B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105951748A (en) | 2016-09-21 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210720 Address after: 721499 in Donghu Hotel, north section of Donghu Road, Fengxiang County, Baoji City, Shaanxi Province Patentee after: Fengxiang posent northwest Geotechnical Engineering Co.,Ltd. Address before: 056 Donghu Road, Chengguan Town, Fengxiang County, Baoji City, Shaanxi Province Patentee before: Liu Luhuai |
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| TR01 | Transfer of patent right |