CN108193672A - One kind, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile - Google Patents
One kind, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile Download PDFInfo
- Publication number
- CN108193672A CN108193672A CN201711416370.3A CN201711416370A CN108193672A CN 108193672 A CN108193672 A CN 108193672A CN 201711416370 A CN201711416370 A CN 201711416370A CN 108193672 A CN108193672 A CN 108193672A
- Authority
- CN
- China
- Prior art keywords
- long steel
- steel pile
- stake position
- pile casting
- little
- 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.)
- Pending
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
- Piles And Underground Anchors (AREA)
Abstract
It is enclosed the invention discloses one kind and a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile, it is related to technical field of construction；Its construction technology is as follows：Pile foundation setting-out and the setting-out of casing peripheral extent → down-the-hole drill disintegrate it is broken rockfill → repetition measurement stake position → hammering and pulling-out machine lays long steel pile casting → repetition measurement stake position and long steel pile casting → rotary drilling rig does operation pore-forming → other ordinary pile foundations construction；The present invention can save a large amount of project cost；Shorten the construction period, surrounding enviroment are caused with smaller influence；Economic benefit and social benefit are more apparent.
Description
Technical field：
It is enclosed the present invention relates to one kind and a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile, belong to construction
Technical field.
Background technology：
Existing large area stone-filled region when carrying out digging hole filling pile its use large scale equipment carry out borehole when efficiency it is low,
And waste time, accuracy is low, and intensity is low after perfusion, while cannot carry out borehole, and complex process according to fixed.
Invention content：
Round type large area stone-filled region is a little beaten in view of the above-mentioned problems, being enclosed the technical problem to be solved in the present invention is to provide one kind
Spiral-digging pore construction process of bored concrete pile, when it solves place large area as 1-6 meters of thick Backfilled Stone Layers, long steel pile casting is easily made under hammering and pulling-out machine
Steel pile casting meets the problem of casing is caused to tilt of rockfilling during the deformation of growth steel pile casting, pushing；Ensure that rotary drilling rig can be in big face
Pore-forming in long-pending region of rockfilling.
One kind of the present invention, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile, its construction work
Skill is as follows：Pile foundation setting-out and the setting-out of casing peripheral extent → down-the-hole drill disintegrate it is broken rockfill → repetition measurement stake position → hammering and pulling-out machine lays
Long steel pile casting → repetition measurement stake position and long steel pile casting → rotary drilling rig do operation pore-forming → other ordinary pile foundations construction；Above-mentioned construction work
Skill shortens the construction period, and surrounding enviroment are caused with smaller influence and project cost is at low cost.
Preferably, the flow of the pile foundation setting-out and casing peripheral extent setting-out is as follows：
1.1st, pile foundation setting-out：
Stake position is launched using total powerstation, is used in combinationLong 200mm reinforcing bars, which are driven underground, marks；It is required that the stake of measuring
Position deviation is no more than 5mm；
1.2nd, casing peripheral extent setting-out：
Centered on stake position, lime setting-out is shed along the planar circumferential range of long steel pile casting with lime.Above-mentioned steps operate
It is simple for process, it lays a solid foundation to subsequent construction.
Preferably, the down-the-hole drill disintegrates, the broken flow rockfilled is as follows：
One hole is bored at interval of 250mm along the lime line shed using down-the-hole drill；Utilize rushing for down-the-hole drill down-hole hammer
It hits to disintegrate and crush so that long steel pile casting passes through rockfilling for region；Each drilling should all penetrate Backfilled Stone Layer, and whether each drilling wears
The criterion of Backfilled Stone Layer is down-hole hammer from top to bottom from there is pneumatic hammer vibrating noise to become in native soil in Backfilled Stone Layer thoroughly
It is interior silent.This step practicability is stronger, saves manpower.
Preferably, the flow of the repetition measurement stake position is as follows：
Down-the-hole drill complete each disintegration of rockfilling it is broken after, the good stake bit flag deviation of measuring is again before coping with
Carry out repetition measurement, it is ensured that the stake position label deviation after repetition measurement meets design and code requirement.Ensure that the step reaches code requirement.
Preferably, the flow that the hammering and pulling-out machine lays long steel pile casting is as follows：
The region of rockfilling for being smashed the alignment of long steel pile casting by disintegration using hammering and pulling-out machine, is symmetrically and evenly shaken long steel pile casting
It is dynamic to punch Backfilled Stone Layer, and long steel pile casting bottom end is made to enter in native soil 0.5-1.0 meters, this step saves project cost.
Preferably, the flow of the repetition measurement stake position and long steel pile casting is as follows：
Last time repetition measurement stake position and the deviation of long steel pile casting；Accomplish：Stake position measuring deviation is no more than 5mm；Long steel pile casting
Center is no more than 50mm with stake position centre deviation；The perpendicularity deviation of long steel pile casting is no more than 1%.Ensure that the step reaches specification
It is required that.
Preferably, the flow that the rotary drilling rig does operation pore-forming is as follows：
Finally the deviation of stake position and long steel pile casting is checked, churning driven can be used after meeting design and code requirement
Machine carries out dry operation pore-forming；If occurred in Backfilled Stone Layer, rotary digging is difficult to situation about constructing when the grain size that rockfills is big, using down-the-hole
Drilling machine to rockfilling in long steel pile casting disintegrate broken.Ensure that the step reaches code requirement and shortens the construction period.
Compared with prior art, beneficial effects of the present invention are：
First, a large amount of project cost can be saved；
2nd, shorten the construction period, surrounding enviroment are caused with smaller influence；
3rd, economic benefit and social benefit are more apparent.
Description of the drawings：
For ease of explanation, the present invention is described in detail by following specific implementations and attached drawing.
Fig. 1 is the flow chart of the present invention；
Fig. 2 is that the schematic diagram for a little beating circle is enclosed in the present invention, and 1 is long steel pile casting setting-out position；2 be 150mm drill bits band hole drill
Machine drill is into setting-out position.
Specific embodiment：
Understand to make the object, technical solutions and advantages of the present invention clearer, it is specific below by what is shown in attached drawing
Embodiment describes the present invention.However, it should be understood that these descriptions are merely illustrative, and it is not intended to limit the model of the present invention
It encloses.In addition, in the following description, the description to known features and technology is omitted, to avoid unnecessarily obscuring the present invention's
Concept.
As depicted in figs. 1 and 2, in Fig. 21 be long steel pile casting setting-out position, 2 for 150mm drill bits band drilling machine creep into setting-out
Position, present embodiment use following technical scheme：One kind, which is enclosed, a little plays the spiral-digging pore perfusion of round type large area stone-filled region
Pile constructing process, its construction technology are as follows：Pile foundation setting-out and casing peripheral extent setting-out → down-the-hole drill, which disintegrate to crush, to rockfill
→ repetition measurement stake position → hammering and pulling-out machine lays long steel pile casting → repetition measurement stake position and long steel pile casting → rotary drilling rig do operation pore-forming → other
Ordinary pile foundation is constructed.
It can disintegrate to crush using down-the-hole drill in advance in work progress and rockfill, it is ensured that there are a certain number of positions to be supplied to
Spiral digging machine is constructed, it is ensured that the continuity of rotary digging operation.The technique can't generate excessive noise, only make at the construction field (site)
Industry does not have an impact surrounding enviroment.And the method speed of application that hole is drawn in traditional punching, manually digging hole is slow, it is impossible to meet work
Phase requires, and punching can generate loud noise, influence surrounding enviroment.Cushion is in addition to increasing great expense, unearthed and muck haulage
Also surrounding enviroment can be affected greatly.
By comparison, " enclose and a little beat circle " large area stone-filled region spiral-digging pore construction process of bored concrete pile does not increase the duration, and
And increased expense comparatively very little, in addition also surrounding enviroment are not had an impact, reduce cooperation and communication work, be project
Make smooth advances and play an important role.
Further, the flow of the pile foundation setting-out and casing peripheral extent setting-out is as follows：
1.1st, pile foundation setting-out：
Stake position is launched using total powerstation, is used in combinationLong 200mm reinforcing bars, which are driven underground, marks.It is required that the stake of measuring
Position deviation is no more than 5mm；
1.2nd, casing peripheral extent setting-out：
Centered on stake position, lime setting-out is shed along the planar circumferential range of long steel pile casting with lime.
This processing step, which disintegrates to crush to rockfill for follow-up down-the-hole drill, carries out basic preparation.
Further, the broken flow rockfilled of down-the-hole drill disintegration is as follows：
One hole is bored at interval of 250mm along the lime line shed using down-the-hole drill；Utilize rushing for down-the-hole drill down-hole hammer
It hits the broken steel pile casting long in the future that can disintegrate and has to pass through rockfilling for region；Each drilling should all penetrate Backfilled Stone Layer, and each drilling is
The no criterion for breaking through Backfilled Stone Layer is down-hole hammer from top to bottom from there is pneumatic hammer vibrating noise to become in original in Backfilled Stone Layer
It is silent in soil layer.
The core process of the embodiment is to carry out rotary drilling rig again after rockfilling using down-the-hole drill disintegration is broken to do operation
Pore-forming, the technique only increase the machine-team expense of down-the-hole drill.Expense using most conventional cushion is about this cost of technology
25 times.
Further, the flow of the repetition measurement stake position is as follows：
It, may be because of Backfilled Stone Layer extruding and construction machinery and people during broken rockfill of being disintegrated using down-the-hole drill
Member's collision stake bit flag (steel bar end) etc. disturbing influence of factors and there is deviation in the good stake position of measuring before causing, so, latent
Drilling machine complete each disintegration of rockfilling it is broken after, good stake bit flag (steel bar end) deviation of measuring carries out again before coping with
Repetition measurement, it is ensured that stake position label (steel bar end) deviation after repetition measurement meets design and code requirement.
This processing step is more in line with safety standard requirements after implementing.
Further, the hammering and pulling-out machine lay long steel pile casting flow it is as follows：
The region of rockfilling that hammering and pulling-out machine is used to be smashed the alignment of long steel pile casting (wall thickness 10mm) by disintegration, symmetrically and evenly
The vibration of long steel pile casting is punched into Backfilled Stone Layer, and it is 0.5-1.0 meters interior that long steel pile casting bottom end is made to enter native soil (silty clay).
Further, the flow of the repetition measurement stake position and long steel pile casting is as follows：
After long protecting tube embedding is good, since hammering and pulling-out machine injection is uneven, it is broken uneven to rockfill and Backfilled Stone Layer is squeezed and applied
Work machinery, personnel collide stake bit flag (steel bar end) etc. the disturbing influence of factors and there is deviation in the good stake position of measuring before causing,
And long steel pile casting may be caused vertical and horizontal direction deviation cannot meet design requirement.Therefore, it should last time repetition measurement stake
Position and the deviation of long steel pile casting.Accomplish：Stake position measuring deviation is no more than 5mm；Long steel pile casting center does not surpass with stake position centre deviation
Cross 50mm；The perpendicularity deviation of long steel pile casting is no more than 1%.
Further, the rotary drilling rig do operation pore-forming flow it is as follows：
Finally the deviation of stake position and long steel pile casting is checked, churning driven can be used after meeting design and code requirement
Machine carries out dry operation pore-forming.If occurred in Backfilled Stone Layer, rotary digging is difficult to situation about constructing when the grain size that rockfills is big, may be used
Down-the-hole drill to rockfilling in long steel pile casting disintegrate broken.Rotary drilling rig pore-forming technique is common process, is not stated herein.
Embodiment：
Positioned at the pile foundation engineering of certain city road and the project of certain street intersection using mechanical rotary digging drilling hole bored concrete pile, total amount of pile
1306.There are 4 meters deeply in project D plot, the Backfilled Stone Layer that about 7700 square metres of area, Backfilled Stone Layer is interior, and there are about engineering piles 269
Root, after which " encloses and a little beats circle " large area stone-filled region spiral-digging pore construction process of bored concrete pile, the expense and work of saving
Phase is as follows：
First, expense compares：
1.1st, the expense of filling out is changed：7700 x2 times=246.4 ten thousand yuan of ㎡ x4mx40 members.
1.2nd, " enclose and a little beat circle " large area stone-filled region spiral-digging pore construction process of bored concrete pile：100000 yuan of down-the-hole drill machine-teams
Expense.
The technique saves 236.4 ten thousand yuan.
2nd, the duration compares：
2.1, change and fill out the duration；Rainy season about increases by 1.5 months durations.
2.2nd, " enclose and a little beat circle " large area stone-filled region spiral-digging pore construction process of bored concrete pile：Do not increase the duration.
The technique saves 1.5 months durations
3rd, the region engineering pile that rockfills is a kind of stake after testing.
Claims (7)
1. one kind, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile, it is characterised in that：Its construction
Technique is as follows：Pile foundation setting-out and the setting-out of casing peripheral extent → down-the-hole drill disintegrate it is broken rockfill → repetition measurement stake position → hammering and pulling-out machine beats
Lower long steel pile casting → repetition measurement stake position and long steel pile casting → rotary drilling rig do operation pore-forming → other ordinary pile foundations construction.
2. one kind according to claim 1, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile,
It is characterized in that：The flow of the pile foundation setting-out and casing peripheral extent setting-out is as follows：
1.1st, pile foundation setting-out：
Stake position is launched using total powerstation, is used in combinationLong 200mm reinforcing bars, which are driven underground, marks；It is required that the stake position of measuring is inclined
Difference is no more than 5mm；
1.2nd, casing peripheral extent setting-out：
Centered on stake position, lime setting-out is shed along the planar circumferential range of long steel pile casting with lime.
3. one kind according to claim 1, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile,
It is characterized in that：The broken flow rockfilled of down-the-hole drill disintegration is as follows：
One hole is bored at interval of 250mm along the lime line shed using down-the-hole drill；Utilize the impact energy of down-the-hole drill down-hole hammer
Disintegrate broken so that long steel pile casting passes through rockfilling for region；Each drilling should all penetrate Backfilled Stone Layer, and whether each drilling breaks through
The criterion of Backfilled Stone Layer is down-hole hammer from top to bottom from there is pneumatic hammer vibrating noise to become the nothing in native soil in Backfilled Stone Layer
Sound is free of interest.
4. one kind according to claim 1, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile,
It is characterized in that：The flow of the repetition measurement stake position is as follows：
Down-the-hole drill complete each disintegration of rockfilling it is broken after, measuring before should be carried out good stake bit flag deviation again
Repetition measurement, it is ensured that the stake position label deviation after repetition measurement meets design and code requirement.
5. one kind according to claim 1, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile,
It is characterized in that：The flow that the hammering and pulling-out machine lays long steel pile casting is as follows：
The vibration of long steel pile casting is symmetrically and evenly played in the region of rockfilling for being smashed the alignment of long steel pile casting by disintegration using hammering and pulling-out machine
Backfilled Stone Layer is worn, and long steel pile casting bottom end is made to enter in native soil 0.5-1.0 meters.
6. one kind according to claim 1, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile,
It is characterized in that：The flow of the repetition measurement stake position and long steel pile casting is as follows：
Last time repetition measurement stake position and the deviation of long steel pile casting；Accomplish：Stake position measuring deviation is no more than 5mm；Long steel pile casting center
It is no more than 50mm with stake position centre deviation；The perpendicularity deviation of long steel pile casting is no more than 1%.
7. one kind according to claim 1, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile,
It is characterized in that：The flow that the rotary drilling rig does operation pore-forming is as follows：
Finally the deviation of stake position and long steel pile casting is checked, meet design and code requirement after i.e. can be used rotary drilling rig into
The dry operation pore-forming of row；If occurred in Backfilled Stone Layer, rotary digging is difficult to situation about constructing when the grain size that rockfills is big, using down-the-hole drill
Rockfilling in long steel pile casting disintegrate broken.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711416370.3A CN108193672A (en) | 2017-12-25 | 2017-12-25 | One kind, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711416370.3A CN108193672A (en) | 2017-12-25 | 2017-12-25 | One kind, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108193672A true CN108193672A (en) | 2018-06-22 |
Family
ID=62583810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711416370.3A Pending CN108193672A (en) | 2017-12-25 | 2017-12-25 | One kind, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108193672A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554197A (en) * | 2020-11-30 | 2021-03-26 | 中铁大桥局集团有限公司 | Steel casing construction method suitable for deep water bare rock geology |
| CN113669003A (en) * | 2021-08-05 | 2021-11-19 | 深圳宏业基岩土科技股份有限公司 | Deep rockfill and sludge area breast wall hole forming construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1831250A (en) * | 2005-03-07 | 2006-09-13 | 徐州工程机械科技股份有限公司徐工研究院 | Construction technology of dry soil taking hole forming method of rotary digging drilling machine |
| GB2431189A (en) * | 2005-10-14 | 2007-04-18 | Tidal Generation Ltd | Installation of underwater anchorages |
| CN102041807A (en) * | 2010-06-12 | 2011-05-04 | 中铁十六局集团有限公司 | Dense hole preliminary loosening hard plagioclase construction technique |
| CN203403404U (en) * | 2013-07-15 | 2014-01-22 | 深圳市工勘岩土工程有限公司 | High-efficiency cast-in-place pile device |
-
2017
- 2017-12-25 CN CN201711416370.3A patent/CN108193672A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1831250A (en) * | 2005-03-07 | 2006-09-13 | 徐州工程机械科技股份有限公司徐工研究院 | Construction technology of dry soil taking hole forming method of rotary digging drilling machine |
| GB2431189A (en) * | 2005-10-14 | 2007-04-18 | Tidal Generation Ltd | Installation of underwater anchorages |
| CN102041807A (en) * | 2010-06-12 | 2011-05-04 | 中铁十六局集团有限公司 | Dense hole preliminary loosening hard plagioclase construction technique |
| CN203403404U (en) * | 2013-07-15 | 2014-01-22 | 深圳市工勘岩土工程有限公司 | High-efficiency cast-in-place pile device |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国建设部批准: "《建筑桩基技术规范（JGJ94-2008）》", 1 October 2008, 中国建筑工业出版社 * |
| 周艳: "旋挖钻机结合潜孔钻机入岩成孔施工的探讨", 《山西建筑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554197A (en) * | 2020-11-30 | 2021-03-26 | 中铁大桥局集团有限公司 | Steel casing construction method suitable for deep water bare rock geology |
| CN113669003A (en) * | 2021-08-05 | 2021-11-19 | 深圳宏业基岩土科技股份有限公司 | Deep rockfill and sludge area breast wall hole forming construction method |
| CN113669003B (en) * | 2021-08-05 | 2023-12-15 | 深圳宏业基岩土科技股份有限公司 | Construction method for wall protection pore-forming in deep filled stone and silt region |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105840207B (en) | Construction method for comprehensive tunnel entering structure of large-span tunnel penetrating shallow-buried bias-pressure loose accumulation body | |
| CN108842791B (en) | Detachable load pile anchor multistage supporting structure and construction method | |
| CN104947690B (en) | Grooving construction method for embedding underground continuous wall into rock | |
| CN104153352A (en) | Karst geology rotary-drilling bored concrete pile hole forming process | |
| CN102505704A (en) | Large open caisson construction method in soft geological shaft | |
| CN110344400A (en) | The hard rock pore-forming construction technology of churning driven opportunity | |
| CN107339122B (en) | Construction method for treating goaf by steel pipe column | |
| CN106545007A (en) | The method of pile in stratum of the bottom for hard rock stratum | |
| CN112030956A (en) | Karst stratum bored pile construction method | |
| CN107503344A (en) | The construction method of turnover type merogenesis steel pile casting retaining wall manually digging hole filling pile | |
| CN105421445A (en) | Construction method for non-prestressed centrifugal high-strength concrete pile planted pile | |
| CN104532853A (en) | Deep foundation pit supporting method and system characterized by steel reinforced cement-soil piles, bolts easy to detach and automatic monitoring and early warning | |
| CN206721870U (en) | A kind of long auger guncreting pile steel reinforcement cage | |
| CN108193672A (en) | One kind, which is enclosed, a little beats round type large area stone-filled region spiral-digging pore construction process of bored concrete pile | |
| CN107100164A (en) | A kind of long auger guncreting pile construction method | |
| CN105019431B (en) | Crush and complete alternate steep dip stratified rock masses Large Diameter Super-long Bored Piles construction method | |
| CN110259456B (en) | Karst cave treatment method for tunnel construction | |
| CN106968252A (en) | Pile pulling recharge method and pile pulling recharge system | |
| CN106245668A (en) | A kind of truss-like pile foundation and construction method thereof | |
| CN110512594A (en) | The simple and easy method of churning driven opportunity cavity pore-forming | |
| CN206902710U (en) | Retaining wall and counter-force open caisson platform pile pulling system | |
| CN206902712U (en) | Pile pulling recharge system | |
| CN110080238A (en) | Deep one meat or fish dyadic combined type pile forming method of loose Backfilled Stone Layer interlocking pile | |
| CN109113054A (en) | A kind of reclaimation area complex geological condition cast-in-situ bored pile multimachine combined construction method | |
| CN108049399A (en) | A kind of cement-soil stirring pile construction method of anti-foundation liquefaction |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180622 |