CN109707314A - A kind of drill bit combination unit and its forming hole method in high-speed rail hard rock pile foundation - Google Patents
A kind of drill bit combination unit and its forming hole method in high-speed rail hard rock pile foundation Download PDFInfo
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- CN109707314A CN109707314A CN201910068743.5A CN201910068743A CN109707314A CN 109707314 A CN109707314 A CN 109707314A CN 201910068743 A CN201910068743 A CN 201910068743A CN 109707314 A CN109707314 A CN 109707314A
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- Prior art keywords
- bucket
- rock
- drill bit
- drift
- hard rock
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- 239000011435 rock Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 241001074085 Scophthalmus aquosus Species 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010438 granite Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The invention discloses a kind of drill bit combination unit and its in the forming hole method of high-speed rail hard rock pile foundation, it includes several rock bit on bucket brill and the side wall for being disposed in an evenly spaced relation in bucket brill bottom, rock bit includes cone palm and gear wheel head, cone palm therein is welded in bucket and bores on the side wall of bottom, and two neighboring gear wheel head is arranged alternately what bucket bored radially towards upper to be inside and outside；It is welded with drift on the inner wall on bucket brill top, the one end of drift far from rock bit is thicker.The present invention is provided with drift, keeps drilling depth control more accurate, and hard rock is easier to separate with parent.And need all to bore entire hard rock hole compared to rotary drill broken, The present invention reduces the hard rocks that need to be drilled through, and cause unnecessary rock bit to wear away, improve work efficiency.
Description
Technical field
The present invention relates to pile foundation fields, it particularly relates to which a kind of drill bit combines the unit and its in high-speed rail hard rock pile foundation
Forming hole method.
Background technique
Impact drill, reverse circulation drilling, rotary digging bucket is mostly used to bore in high-speed rail pile foundation pore-forming traditional at present.Impact drill is as omnipotent
Type punching apparatus, though omnipotent, work efficiency increases engineering cost, pore-forming time length and work progress the bottom of compared in hard rock construction
Noise is larger.Though reverse circulation drilling, rotary digging bucket bore mud geology, silty clay, thick round shaped grain soil, in completely weathered granite drilling depth compared with
Fastly, but strong weathered granite, weak weathered granite geology are not suitable for it.Rotary drill has preferable effect to hard rock, but time-consuming takes
Power.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes that a kind of drill bit combines the unit and its in high-speed rail hard rock
The forming hole method of pile foundation, is able to solve the above problem.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of drill bit combination unit comprising bucket bores and be disposed in an evenly spaced relation in several teeth on the side wall of bucket brill bottom
Drill bit is taken turns, the rock bit includes cone palm and gear wheel head, wherein the cone palm is welded in the side that the bucket bores bottom
On wall, the two neighboring gear wheel head is arranged alternately what the bucket bored radially towards upper to be inside and outside；The bucket bores the interior of top
Drift is welded on wall, the one end of the drift far from the rock bit is thicker.
Further, the gear wheel head is alloy head.
Further, the level weld seam requirement that the cone palm and the bucket bore is first-order weld.
Further, the level weld seam requirement that the drift and the bucket bore is second-order weld.
Further, the outer wall that the bucket bores is provided with shape of threads convex ribs.
A kind of forming hole method suitable for drill bit described in any of the above embodiments combination unit in high-speed rail hard rock pile foundation, including step
It is rapid:
1) continu to press is combined the unit to drill bit and makes its rotation, bore the first side rotation of the gear wheel around the bucket on one side
Revolution, hard rock is separated with from parent, and hard rock is made to step into the inside that the bucket bores；
2) when hard rock is not up to the height of the drift, continue to creep into, until reaching the height of the drift；
3) since drill bit combination unit does not stop to rotate, the drift, which generates hard rock, to be bored radial direction towards the bucket and does not stop to become
The extruding force of change, also generates frictional force between the inner wall and hard rock that the bucket bores, the comprehensive function of two bursts of power make hard rock bottom with
Parent junction fracture separation；
4) drill bit is combined the unit using drilling machine lifting device and telescopic drill rod and proposes to unload rock outside hole, moved in circles in this way,
Constantly rock is taken to unload rock, until drilling to completion.
Beneficial effects of the present invention: the present invention is provided with drift, make drilling depth control it is more accurate, hard rock be easier with
Parent separation.And need all to bore entire hard rock hole compared to rotary drill broken, The present invention reduces the hard rocks that need to be drilled through, and cause not
Necessary rock bit abrasion, improve work efficiency.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of drill bit combination unit；
Fig. 2 is the structural schematic diagram that bucket bores；
Fig. 3 is the structural schematic diagram of rock bit；
Fig. 4 is the top view that bucket bores.
In figure: 1. barrels of brills, 2. rock bit, 21. cone palms, 22. gear wheel heads, 3. drifts.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figure 1, a kind of drill bit combination unit according to embodiments of the present invention comprising bucket bore 1 and uniformly between
Several rock bit 2 on the side wall that 1 bottom of the bucket brill is arranged in, the rock bit 2 include cone palm 21 and tooth
Wheel head 22 is bored on the side wall of 1 bottom wherein the cone palm 21 is welded in the bucket, and the two neighboring gear wheel head 22 exists
The bucket brill 1 is arranged alternately radially towards upper to be inside and outside；Drift 3, the drift 3 are welded on the inner wall on 1 top of the bucket brill
One end far from the rock bit 2 is thicker.
In one particular embodiment of the present invention, the gear wheel head 22 is alloy head.
In one particular embodiment of the present invention, the cone palm 21 bores 1 level weld seam requirement with the bucket as level-one weldering
Seam.
In one particular embodiment of the present invention, the level weld seam requirement that the drift 3 bores 1 with the bucket is second-order weld.
In one particular embodiment of the present invention, the outer wall that the bucket bores 1 is provided with shape of threads convex ribs.
A kind of forming hole method suitable for drill bit described in any of the above embodiments combination unit in high-speed rail hard rock pile foundation, including step
It is rapid:
1) continu to press is combined the unit to drill bit and makes its rotation, the gear wheel head 22 is made to wind the bucket while rotation
1 revolution is bored, hard rock is separated with from parent, hard rock is made to step into the inside that the bucket bores 1；
2) when hard rock is not up to the height of the drift 3, continue to creep into, until reaching the height of the drift 3；
3) since drill bit combination unit does not stop to rotate, the drift 3, which generates hard rock, to be bored 1 radial direction towards the bucket and does not stop
The extruding force of variation also generates frictional force between the inner wall and hard rock of the bucket brill 1, and the comprehensive function of two bursts of power makes hard rock bottom
With parent junction fracture separation；
4) drill bit is proposed to unload rock outside hole using drilling machine lifting device and telescopic drill rod, moves in circles, constantly takes in this way
Rock unloads rock, until drilling to completion.
In order to facilitate understanding above-mentioned technical proposal of the invention, below by way of in specifically used mode to of the invention above-mentioned
Technical solution is described in detail.
When specifically used, a kind of drill bit combination unit according to the present invention to drill bit continu to press and makes its rotation
Turn, gear wheel head 22 winds bucket while autobiography and bores 1 revolution, and hard rock is separated with from parent, so that hard rock is stepped into bucket and bores in 1
Portion.When hard rock is not up to 3 height of drift, continue to creep into, until reaching the height of drift 3, by drift 3 to the centripetal of hard rock
Extruding force separates hard rock bottom with parent junction.Then drill bit is proposed with drilling machine lifting device and telescopic drill rod again
Rock is unloaded outside hole, is moved in circles in this way, constantly rock is taken to unload rock, until drilling to completion.
For the loss for reducing rock bit 2, rock bit 2 is proposed outside hole by drilling machine lifting device intermittently, carries out tooth
The temperature of wheel head 22 is cooling.It checks 22 rotation situation of gear wheel head, after avoiding gear wheel head 22 from stopping operating, had both reduced construction work
Effect, and the loss of other gear wheel heads 22 is increased, and in time using clear water cooling and oil lubrication bearing.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of drill bit combination unit, which is characterized in that it includes that bucket bores (1) and is disposed in an evenly spaced relation in the bucket brill (1) bottom
Several rock bit (2) on the side wall in portion, the rock bit (2) include cone palm (21) and gear wheel head (22), wherein
The cone palm (21) is welded in the bucket and bores on the side wall of (1) bottom, and the two neighboring gear wheel head (22) is described
Bucket bores being arranged alternately radially towards upper to be inside and outside for (1)；Drift (3), the drift are welded on the inner wall on the bucket brill (1) top
(3) one end far from the rock bit (2) is thicker.
2. drill bit combination unit according to claim 1, it is characterised in that: the gear wheel head (22) is alloy head.
3. drill bit combination unit according to claim 1, it is characterised in that: the cone palm (21) and the bucket bore (1)
Level weld seam requirement be first-order weld.
4. drill bit combination unit according to claim 1, it is characterised in that: the weldering of the drift (3) and bucket brill (1)
Seam requires to be second-order weld.
5. drill bit combination unit according to claim 1, it is characterised in that: the outer wall that the bucket bores (1) is provided with screw thread
Shape convex ribs.
6. a kind of combine the unit suitable for the described in any item drill bits of the claims 1-5 in the pore-forming side of high-speed rail hard rock pile foundation
Method, which is characterized in that comprising steps of
1) continu to press is combined the unit to drill bit and makes its rotation, wind the gear wheel head (22) while rotation described
Bucket bores (1) revolution, and hard rock is separated with from parent, and hard rock is made to step into the inside that the bucket bores (1)；
2) when hard rock is not up to the height of the drift (3), continue to creep into, until reaching the height of the drift (3)；
3) due to drill bit combination unit do not stop to rotate, the drift (3) to hard rock generate towards the bucket bore (1) radial direction and
Do not stop the extruding force of variation, also generates frictional force between the inner wall and hard rock of the bucket brill (1), the comprehensive function of two bursts of power makes firmly
Rock bottom and parent junction fracture separation；
4) drill bit is proposed to unload rock outside hole using drilling machine lifting device and telescopic drill rod, moves in circles, constantly takes in this way
Rock unloads rock, until drilling to completion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068743.5A CN109707314A (en) | 2019-01-24 | 2019-01-24 | A kind of drill bit combination unit and its forming hole method in high-speed rail hard rock pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068743.5A CN109707314A (en) | 2019-01-24 | 2019-01-24 | A kind of drill bit combination unit and its forming hole method in high-speed rail hard rock pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109707314A true CN109707314A (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910068743.5A Pending CN109707314A (en) | 2019-01-24 | 2019-01-24 | A kind of drill bit combination unit and its forming hole method in high-speed rail hard rock pile foundation |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203925289U (en) * | 2014-06-25 | 2014-11-05 | 中铁上海工程局集团有限公司 | A kind of revolving of being applicable to that micro-weathered rock formation creeps into dug drill bit |
| CN106150385A (en) * | 2015-04-16 | 2016-11-23 | 山东天工岩土工程设备有限公司 | A kind of changeable type rock bit system |
| CN106245626A (en) * | 2016-08-15 | 2016-12-21 | 中建三局基础设施工程有限公司 | A kind of hard formation churning driven enters method |
| CN107386984A (en) * | 2017-07-16 | 2017-11-24 | 江西飞龙钻头制造有限公司 | Engineering roller bit |
| CN209621211U (en) * | 2019-01-24 | 2019-11-12 | 中铁十六局集团第五工程有限公司 | A kind of drill bit combination unit |
-
2019
- 2019-01-24 CN CN201910068743.5A patent/CN109707314A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203925289U (en) * | 2014-06-25 | 2014-11-05 | 中铁上海工程局集团有限公司 | A kind of revolving of being applicable to that micro-weathered rock formation creeps into dug drill bit |
| CN106150385A (en) * | 2015-04-16 | 2016-11-23 | 山东天工岩土工程设备有限公司 | A kind of changeable type rock bit system |
| CN106245626A (en) * | 2016-08-15 | 2016-12-21 | 中建三局基础设施工程有限公司 | A kind of hard formation churning driven enters method |
| CN107386984A (en) * | 2017-07-16 | 2017-11-24 | 江西飞龙钻头制造有限公司 | Engineering roller bit |
| CN209621211U (en) * | 2019-01-24 | 2019-11-12 | 中铁十六局集团第五工程有限公司 | A kind of drill bit combination unit |
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