CN106481296A - Air supply and water supply drilling device and method for drilling pressure-grouting concrete pile - Google Patents
Air supply and water supply drilling device and method for drilling pressure-grouting concrete pile Download PDFInfo
- Publication number
- CN106481296A CN106481296A CN201610866036.7A CN201610866036A CN106481296A CN 106481296 A CN106481296 A CN 106481296A CN 201610866036 A CN201610866036 A CN 201610866036A CN 106481296 A CN106481296 A CN 106481296A
- Authority
- CN
- China
- Prior art keywords
- water
- drilling
- air
- core pipe
- sent
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 102
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 239000004567 concrete Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009423 ventilation Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 8
- 239000011435 rock Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
Classifications
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
-
- 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
-
- 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)
- Earth Drilling (AREA)
Abstract
An air supply and water supply drilling device and a drilling method for a drilling pressure-grouting concrete pile. The construction process is a common construction process in the current building market, namely a drilling and pressure filling superfluid concrete pile-forming method, and no process for simultaneously and simultaneously performing pressure filling concrete pile-forming by mechanical energy due to the complex process flow of pressure filling superfluid concrete exists at present, namely a drilling and pressure filling concrete pile air supply and water supply drilling device comprises the following components: the upper part of the water and air supply slewing device is connected with a power head (2), one end of the power head is connected with a main machine (3) of the spiral drill through an output shaft of the power head, the lower end of the water and air supply slewing device is connected with a spiral drill rod (4), the spiral drill rod penetrates through a ventilation water through cavity (5), an upper flange (6) and a lower flange (7), and a drill rod core pipe (8) is sleeved outside the spiral drill rod. The invention is applied to the field of buildings.
Description
Technical field：
The present invention relates to water drilling apparatus and drilling method are sent in a kind of drilling ＆ grouting piling concrete stake, lacking for conventional construction method
Point has been invented and a kind of has once been crept into severely-weathered, the guncreting pile in middle weathered rock formation method and device.
Background technology：
Construction market commonly uses a kind of construction technology at present:Drilling ＆ grouting piling superfluidity concrete pile-making method, patent name《Superfluid state concrete
And its rig used by perfusion pile making method and the method》The patent No.：ZL93120168.3.The method and device flow process are once
Creep into projected depth, once carry brill and lay steel reinforcement cage pile.Because pressure fills what Superfluid state concrete complicated technology flow process determined
There is presently no the technique that a kind of mechanical energy creeps into a severely-weathered and middle weathered rock formation guncreting pile simultaneously.Typically adopt
With first drawing Kong Zaiyong drilling ＆ grouting piling rig pile, have that operation is numerous and diverse, construction cost is high, speed is slow, of poor quality the shortcomings of.This
The bright shortcoming for conventional construction method has been invented one kind and has once been crept into severely-weathered, guncreting pile in middle weathered rock formation
Method and device.The advantage of the method is that speed of application is fast, quality is good, low cost, device are simple to operation, compensate for this
Technique and the blank of device.
Content of the invention：
It is an object of the invention to provide water drilling apparatus and drilling method are sent in a kind of drilling ＆ grouting piling concrete stake.
Above-mentioned purpose is realized by following technical scheme：
Water drilling apparatus are sent in a kind of drilling ＆ grouting piling concrete stake, and its composition includes：Unit head, described unit head is with drilling rod even
Connect, described drilling rod passes through ventilation water flowing chamber, upper flange and lower flange, outside described drilling rod, be cased with drilling rod core pipe, described is logical
Gas water flowing chamber has inner-outer sleeve connecting plate, has U-shaped envelope overcoat and U-shaped envelope inner sleeve between described inner-outer sleeve connecting plate, described
The lower end in ventilation water flowing chamber be provided with lower air-out drainage hole, right-hand member or left end are provided with water hole on upper air inlet, described drilling rod
Lower end is connected with drill bit.
Water drilling apparatus are sent in described drilling ＆ grouting piling concrete stake, water hole and compressed air and water pipe on described upper air inlet
Connect, described compressed air and water pipe send water threeway to be connected with air-supply, and described air-supply send water threeway to be connected with water injection pipe, institute
The water injection pipe stated is connected with water injection pump water inlet and air engine import respectively.
Water drilling apparatus are sent in described drilling ＆ grouting piling concrete stake, and described unit head is arranged on the upper of power head output shaft
End or the lower end being arranged on power head output shaft.
Water drilling apparatus are sent in described drilling ＆ grouting piling concrete stake, along described drilling rod blade screw disk in described drilling rod
Outside core pipe from top to bottom to drill bit be screw arrangement, along inside described drilling rod core pipe from top to bottom to described drill bit be core pipe
Interior arrangement, along outside described drilling rod core pipe from top to bottom to described drill bit, cuts hole when through brill leaf and passes through as in core pipe
Arrangement.
Beneficial effects of the present invention：
1. the present invention solves the difficult problem that drilled press-grouting pile cannot disposably creep into strongly weathered sand-rock and middle weathered rock formation, keeps former side
Method is once crept into（Blow or send water or be used alone）, put forward brill, the method for guncreting pile.Avoid and draw the secondary drilling in hole
The shortcoming that guncreting reduces bearing capacity.Can effectively improve bearing capacity of single pile, reduce with stake quantity, reduces cost, just
In popularization, increase social benefit.
The present invention lifts the construction quality of stake, and general traditional method is to bore twice pile, is arrived with a bench drill power traction hole first
Drilling ＆ grouting piling concrete drilling machine guncreting pile, the method first pass disturbance original soil layer reduction is used again after designed elevation
Bearing capacity.2nd, improve speed of application, twice pile is become a pile, shortens the duration.3rd, reduces cost, by with two
The stake that rig can complete just can be completed in the same time with a bench drill machine.
The present invention solves parcel drill bit during long screw auger machine drill high intensity mud stone by air-supply, water, increases drilling resistance,
Drilling time is long, and temperature of diamond bit is high and abrasion is big, the low difficult problem of efficiency.By boring when the arrangement achieves long-spiral drilling machine drilling
Head no wraps up, the advantages of rate of penetration is fast.The method and device are simple to operate, and use cost is low to be easy to promote.
Brief description：
Accompanying drawing 1 is the structural representation of the present invention.
Accompanying drawing 2 is the structural representation sending water to blow slewing equipment.
Accompanying drawing 3 is the structural representation being drilled into designed elevation.
Accompanying drawing 4 is to propose brill blowing-out to cut off the water guncreting pile structural representation.
Accompanying drawing 5 is to install the structural representation that steel reinforcement cage becomes reinforced concrete pile.
Specific embodiment：
Embodiment 1：
Water drilling apparatus are sent in a kind of drilling ＆ grouting piling concrete stake, and its composition includes：Send water air-supply slewing equipment 1, described send water
The top of air-supply slewing equipment is connected with unit head 2, and power head output shaft and auger owner are passed through in described unit head one end
Machine 3 connects, and described water air-supply slewing equipment lower end of sending is connected with auger stem 4, and described auger stem passes through ventilation water flowing
Chamber 5, upper flange 6 and lower flange 7, are cased with drilling rod core pipe 8 outside described auger stem, described ventilation water flowing chamber has inner-outer sleeve
Connecting plate 9, has U-shaped envelope overcoat 10 and a U-shaped envelope inner sleeve 11 between described inner-outer sleeve connecting plate, described ventilation water flowing chamber
Lower end is provided with lower air-out drainage hole 12, and right-hand member or left end are provided with water hole 13 on upper air inlet, described drilling rod lower end and drill bit
14 connections.
Embodiment 2：
Water drilling apparatus are sent in described drilling ＆ grouting piling concrete stake, and on described upper air inlet, water hole and compressed air and water pipe 15 connect
Connect, described compressed air and water pipe send water threeway 16 to be connected with air-supply, and described air-supply send water threeway to be connected with water injection pipe 17,
Described water injection pipe is connected with water injection pump water inlet 18 and air engine import 19 respectively.
Embodiment 3：
Water drilling apparatus are sent in described drilling ＆ grouting piling concrete stake, described unit head be arranged on power head output shaft upper end or
It is arranged on the lower end of power head output shaft.
Embodiment 4：
Water drilling apparatus are sent in described drilling ＆ grouting piling concrete stake, along described drilling rod blade screw disk in described drilling rod core pipe
Outer from top to bottom to drill bit be screw arrangement, along inside described drilling rod core pipe from top to bottom to described drill bit be cloth in core pipe
Put, along outside described drilling rod core pipe from top to bottom to described drill bit, cut hole when through brill leaf and pass through arrangement in for core pipe.
Embodiment 5：
The drilling method of water drilling apparatus is sent in described drilling ＆ grouting piling concrete stake, and the method comprises the steps：
When rig gets into rock stratum, 0.510M ~ 10Mpa, water slewing equipment are blown by air compressor by unit head lower end
Compressed air and grouting pump press water deliver to an end by the pipeline on drilling rod, blow the mud stone clay being wrapped on drill bit open and reduce
Drilling resistance, reduces temperature of diamond bit simultaneously, reduces abrasion；Carry out-of-blast during brill, send water, guncreting becomes concrete-pile；.
Lay steel reinforcement cage and become reinforced concrete pile.Can individually blow when soil layer intensity is relatively low or send water pile.
Embodiment 6：
Water drilling apparatus are sent in described drilling ＆ grouting piling concrete stake, are used alone air-supply, device composition when water drilling enters is：By moving
Power head, upper flange, U-shaped envelope, U-shaped envelope overcoat, compressed air hose, U-shaped envelope inner sleeve, passage, inner-outer sleeve connecting plate, drilling rod core
Pipe, lower flange, enterprising air holes, lower exhaust vent, air compressor machine, ajutage form along drilling rod core pipe to drill bit, drill bit etc..
Embodiment 7：
Water drilling apparatus are sent in described drilling ＆ grouting piling concrete stake, are used alone device composition during air-supply drilling and are：By power
Head, upper flange, U-shaped envelope, U-shaped envelope overcoat, compressed air hose, U-shaped envelope inner sleeve, passage, inner-outer sleeve connecting plate, drilling rod core pipe,
Lower flange, enterprising air holes, lower exhaust vent, air compressor machine, ajutage are along drilling rod core pipe to drill bit, drill bit etc..
Embodiment 8：
Water drilling apparatus are sent in described drilling ＆ grouting piling concrete stake, are used alone the composition of device when sending water drilling to enter and are：By power
Head, upper flange, U-shaped envelope, U-shaped envelope overcoat, water injection pipe, U-shaped envelope inner sleeve, water flowing chamber, inner-outer sleeve connecting plate, drilling rod core pipe, purgation
Blue, upper inlet opening, lower apopore, water injecting pump, water injection pipe form along drilling rod core pipe to drill bit, drill bit etc..
Embodiment 9：
Installation and the arrangement of water drilling apparatus is sent in described drilling ＆ grouting piling concrete stake：May be installed the lower end of power head output shaft
The upper end of power head output shaft can also be arranged on.The ajutage flow pipe arrangement of this device：Screw arrangement：Along drilling rod blade spiral shell
Capstan is outside drilling rod core pipe from top to bottom to drill bit.Arrangement in core pipe：Along inside drilling rod core pipe from top to bottom to drill bit.Outside core pipe
Cloth is arranged：Along outside drilling rod core pipe from top to bottom to drill bit, cut hole when through brill leaf and pass through.
Claims (5)
1. water drilling apparatus are sent in a kind of drilling ＆ grouting piling concrete stake, and its composition includes：Send water air-supply slewing equipment, it is characterized in that：
The described top that water blows slewing equipment of sending is connected with unit head, and power head output shaft and spiral shell are passed through in described unit head one end
Rotary drill machine host connects, and described water air-supply slewing equipment lower end of sending is connected with auger stem, and described auger stem passes through logical
Gas water flowing chamber, upper flange and lower flange, are cased with drilling rod core pipe outside described auger stem, described ventilation water flowing chamber has inside and outside
Set connecting plate, has U-shaped envelope overcoat and U-shaped envelope inner sleeve, under described ventilation water flowing chamber between described inner-outer sleeve connecting plate
End is provided with lower air-out drainage hole, and right-hand member or left end are provided with water hole on upper air inlet, and described drilling rod lower end is connected with drill bit.
2. water drilling apparatus are sent in drilling ＆ grouting piling concrete stake according to claim 1, it is characterized in that：On described upper air inlet
Water hole is connected with compressed air and water pipe, and described compressed air and water pipe send water threeway to be connected with air-supply, and described air-supply is sent
Water threeway is connected with water injection pipe, and described water injection pipe is connected with water injection pump water inlet and air engine import respectively.
3. water drilling apparatus are sent in drilling ＆ grouting piling concrete stake according to claim 1 and 2, it is characterized in that：Described power
Head is arranged on the upper end of power head output shaft or is arranged on the lower end of power head output shaft.
4. water drilling apparatus are sent in the drilling ＆ grouting piling concrete stake according to claim 1 or 2 or 3, it is characterized in that：Along described
Drilling rod blade screw disk outside described drilling rod core pipe from top to bottom to drill bit be screw arrangement, along inside described drilling rod core pipe
From top to bottom to described drill bit be arrangement in core pipe, along outside described drilling rod core pipe from top to bottom to described drill bit, when
Pass through and cut hole when boring leaf through for arranging in core pipe.
5. the drilling method of water drilling apparatus, its feature are sent in the drilling ＆ grouting piling concrete stake described in a kind of one of claim 14
It is：The method comprises the steps：
When rig gets into rock stratum, 0.510M ~ 10Mpa, water slewing equipment are blown by air compressor by unit head lower end
Compressed air and grouting pump press water deliver to an end by the pipeline on drilling rod, blow the mud stone clay being wrapped on drill bit open and reduce
Drilling resistance, reduces temperature of diamond bit simultaneously, reduces abrasion；Carry out-of-blast during brill, send water, guncreting becomes concrete-pile；.
Lay steel reinforcement cage and become reinforced concrete pile.Can individually blow when soil layer intensity is relatively low or send water pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866036.7A CN106481296A (en) | 2016-09-30 | 2016-09-30 | Air supply and water supply drilling device and method for drilling pressure-grouting concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866036.7A CN106481296A (en) | 2016-09-30 | 2016-09-30 | Air supply and water supply drilling device and method for drilling pressure-grouting concrete pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106481296A true CN106481296A (en) | 2017-03-08 |
Family
ID=58267936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610866036.7A Pending CN106481296A (en) | 2016-09-30 | 2016-09-30 | Air supply and water supply drilling device and method for drilling pressure-grouting concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106481296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523688A (en) * | 2020-11-06 | 2021-03-19 | 中国海洋大学 | Efficient and environment-friendly long spiral rock-socketed pile machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2062072A (en) * | 1979-10-31 | 1981-05-20 | Sanwa Kizai Co Ltd | Method of and Apparatus for the Construction of Mixed or Augered-in-place Piles |
| JPH06212870A (en) * | 1992-12-10 | 1994-08-02 | Jin Mo Jeon | Cement soil device of underground drill |
| CN1944809A (en) * | 2006-10-26 | 2007-04-11 | 上海隧道工程股份有限公司 | Three pipe double high pressure rotary jet sprouting reinforced construction method and its equipment |
| CN101967826A (en) * | 2010-10-14 | 2011-02-09 | 李式仁 | Vibrating bar-inserting long spiral air-cooled drilling rock-socketed pile forming method and equipment |
| CN103046568A (en) * | 2012-12-04 | 2013-04-17 | 北京建材地质工程公司 | Long spiral down-the-hole hammer vibrating jet grouting cement soil curtain pile construction process |
| CN103821137A (en) * | 2014-03-27 | 2014-05-28 | 江西中恒岩土工程技术有限公司 | Construction method and device for long auger drilling, rock embedding, bottom expanding and press-casting pile |
-
2016
- 2016-09-30 CN CN201610866036.7A patent/CN106481296A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2062072A (en) * | 1979-10-31 | 1981-05-20 | Sanwa Kizai Co Ltd | Method of and Apparatus for the Construction of Mixed or Augered-in-place Piles |
| JPH06212870A (en) * | 1992-12-10 | 1994-08-02 | Jin Mo Jeon | Cement soil device of underground drill |
| CN1944809A (en) * | 2006-10-26 | 2007-04-11 | 上海隧道工程股份有限公司 | Three pipe double high pressure rotary jet sprouting reinforced construction method and its equipment |
| CN101967826A (en) * | 2010-10-14 | 2011-02-09 | 李式仁 | Vibrating bar-inserting long spiral air-cooled drilling rock-socketed pile forming method and equipment |
| CN103046568A (en) * | 2012-12-04 | 2013-04-17 | 北京建材地质工程公司 | Long spiral down-the-hole hammer vibrating jet grouting cement soil curtain pile construction process |
| CN103821137A (en) * | 2014-03-27 | 2014-05-28 | 江西中恒岩土工程技术有限公司 | Construction method and device for long auger drilling, rock embedding, bottom expanding and press-casting pile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523688A (en) * | 2020-11-06 | 2021-03-19 | 中国海洋大学 | Efficient and environment-friendly long spiral rock-socketed pile machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105971660B (en) | Ultrasonic cavitation and hydraulic fracturing joint incentive coal bed gas pumping method | |
| CN102121395B (en) | Method for integrated comprehensive management of gas in low-permeability single coal bed | |
| CN106351662B (en) | Cellular-type segmenting slip casting reinforcement means, construction method and application | |
| CN104832208B (en) | Anti-collapse method for long-distance horizontal hole drilling in soft coal seam of underground coal mine | |
| CN108252700A (en) | A kind of shale oil-gas reservoir heat of oxidation swashs explosion remodeling method | |
| CN105113987A (en) | Soft-hard interbedding coal seam bedding measurement while drilling (MWD) orientation drilling equipment and construction method thereof | |
| CN107401393A (en) | Water pumping gas production integration goaf gas extraction well casing programme and its construction method | |
| CN102444118A (en) | Construction method for grouting reinforcement of sleeve valve pipe | |
| CN105804786B (en) | A kind of weak seam bottom plate layer-through drilling pressure rushes anti-reflection method | |
| CN105888540B (en) | A kind of drilling method of drilling | |
| CN206625831U (en) | A kind of Karst grouting automatic monitored control system | |
| CN107313745A (en) | A kind of cementing method for crossing the intensive grouting and reinforcing coal bed gas well of many nodes in goaf | |
| WO2014114090A1 (en) | Engineering drilling rig capable of super-fluid concrete pressure-grouted pile construction in competent bed | |
| CN207436988U (en) | A kind of latus rectum drilling dynamic pressure water burst fast plugging device | |
| CN106869989A (en) | A kind of underground coal mine continuous screen manages and protects hole method | |
| CN112727352A (en) | Gas-lift reverse circulation down-the-hole hammer drill driven by rotary drilling rig and use method thereof | |
| CN206503562U (en) | A kind of impact rotating extrusion sealing drill bit | |
| CN108868874A (en) | Hydraulic slotting process method for downward bedding drilling | |
| CN110805035A (en) | Construction process of anti-floating anchor rod in complex stratum and air intake and exhaust grouting pipeline system | |
| CN207673287U (en) | A kind of jet-propelled high-efficiency helical drilling tool | |
| CN207761667U (en) | A kind of supporting construction for tunnel reconstruction and extension project | |
| CN106481296A (en) | Air supply and water supply drilling device and method for drilling pressure-grouting concrete pile | |
| CN109458214A (en) | A kind of low air permeability coal seam static blasting permeability-increasing gas pumping method | |
| CN101251020A (en) | Subsection hole-drilling repeatedly slip-casting method | |
| CN206346701U (en) | A kind of earth source heat pump tube-pulling apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170308 |