CN107630500A - A kind of water supply and drainage construction method - Google Patents

A kind of water supply and drainage construction method Download PDF

Info

Publication number
CN107630500A
CN107630500A CN201710889379.XA CN201710889379A CN107630500A CN 107630500 A CN107630500 A CN 107630500A CN 201710889379 A CN201710889379 A CN 201710889379A CN 107630500 A CN107630500 A CN 107630500A
Authority
CN
China
Prior art keywords
construction method
water supply
groove
pipeline
drainage construction
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
Application number
CN201710889379.XA
Other languages
Chinese (zh)
Inventor
郑浩武
张练和
肖国锋
汪玥
范扬钦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Jingyuan Construction Engineering Co Ltd
Original Assignee
Guangdong Jingyuan Construction Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Jingyuan Construction Engineering Co Ltd filed Critical Guangdong Jingyuan Construction Engineering Co Ltd
Priority to CN201710889379.XA priority Critical patent/CN107630500A/en
Publication of CN107630500A publication Critical patent/CN107630500A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention discloses a kind of water supply and drainage construction method, it is intended to solves the easy fail in compression of pipeline, its drip irrigation device is:Surveying setting-out:Gash depth and width are calculated according to actual measurement ground elevation, and the fluting sideline of pipeline is released with lime line;Channel excavation:Excavated according to gash depth, soil property and groundwater condition, timely measuring flume bottom elevation and width;Piping support structure is installed:Pouring hole is preset in two artificial side of channel bottom, then pours support stake;Pipe installing:Channel bottom laying basis, then down tube, An Guan, base and interface successively;Trench backfill:Trench backfill order is layered progress by groove drainage direction from high to low, and carries out compactness experiment in time.A kind of water supply and drainage construction method of the present invention has the advantages of improving pipeline compression capability.

Description

A kind of water supply and drainage construction method
Technical field
The present invention relates to building field, more specifically, it relates to a kind of water supply and drainage construction method.
Background technology
Discharge water science and engineering is generally referred to as urban water feed system, drainage system(Municipal plumbing and building Plumbing), abbreviation plumbing.
Water and Waste Water Engineering research be one of water society's circulation the problem of." feedwater ":One running water modernized Factory, after extracting Natural Water from rivers and lakes daily, using a series of physical and chemical means by Water warfare to meet production, give birth to The running water of water quality standard is applied flexibly, then by the city river network to extend in all direction, running water is transported to huge numbers of families." draining ": One advanced sewage treatment plant of institute, produces us, live used sewage, Wastewater Concentrated, then neat and tidy It is discharged into rivers and lakes.This water intaking, the process for handling, convey, reprocessing and then discharging are exactly Water and Waste Water Engineering The main contents to be studied.
But various problems in the work progress of current plumbing be present, and pipeline located underground after the completion of construction holds Easy fail in compression.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of water supply and drainage construction method, have and carry The advantages of high pipeline compression capability.
The present invention above-mentioned technical purpose technical scheme is that:A kind of water supply and drainage construction method, Including:
Surveying setting-out:Gash depth and width are calculated according to actual measurement ground elevation, and the fluting side of pipeline is released with lime line Line;
Channel excavation:Excavated according to gash depth, soil property and groundwater condition, timely measuring flume bottom elevation and width;
Piping support structure is installed:Pouring hole is manually preset in channel bottom both sides, then pours support stake;
Pipe installing:Channel bottom laying basis, then down tube, An Guan, base and interface successively;
Trench backfill:Trench backfill order is layered progress by groove drainage direction from high to low, and carries out compactness experiment in time.
By using above-mentioned technical proposal, by lime unwrapping wire after measurement, groove is then dug out by machine again, surveyed in time The elevation and width of bottom land are measured, prevents from backbreaking, it is ensured that channel bottom soil texture is not disturbed or destroys, then in bottom land both sides Manually default pouring hole, then pours support stake, by Pipe installing in groove, finally drainage direction by groove from high to low Layering is backfilled, by supporting stake to improve the compression capability of pipeline.
The present invention is further arranged to:Groove both sides side slope in the channel excavation takes 1:0.5 sloping coefficient, side Not mound in the range of the 1m suitable for reading of slope;Channel bottom retains one layer of 10cm or so and not dug, artificial clear bottom.
By using above-mentioned technical proposal, groove both sides side slope takes 1:0.5 sloping coefficient, increase groove both sides cell wall Stability, the soil for reducing groove both sides cell wall caves in, and the not mound in the range of side slope 1m suitable for reading, the soil for making to dig out exist During construction, it will not fall into groove;Channel bottom retains 10cm or so and not digged pit, and by artificial clear bottom, makes bottom land smooth, makes The groove dug out facilitates postorder to construct.
The present invention is further arranged to:Catch pit, draining are excavated in retention groove bottom without ponding in bottom of trench during the channel excavation Ditch, the water of catch pit is cleared with water pump.
By using above-mentioned technical proposals, catch pit, gutter are excavated in bottom of trench, is cleared the water of catch pit with water pump, Channel bottom is not had ponding, improve the stability of groove.
The present invention is further arranged to:The groove avris sets guardrail, and guard rail position sets caution sign, and night hangs Red light, the spacing of red light are 20m each pairs, while the cover plate covered with bearing capacity on groove.
By using above-mentioned technical proposal, groove avris sets guardrail, and guard rail position sets caution sign, and night suspension is red Lamp, the spacing of red light are 20m each pairs, while the cover plate covered with bearing capacity on groove, ensure that, at night, pedestrian will not fall Fall in groove.
The present invention is further arranged to:In the pouring hole interval 2m of channel bottom both sides in the piping support structure installation Default one, the support stake upper end poured pours cap.
By using above-mentioned technical proposal, pouring hole interval 2m is default one, and support stake is then poured on pouring hole, increases Add the stability of support stake supporting pipeline.
The present invention is further arranged to:Quality inspection should be carried out to tubing, pipeline is not less than using diameter before the Pipe installing 1000mm pipe of concrete;Sandstone basis is laid, then the unwrapping wire on the basis of sandstone, to control the center line of pipe laying, pipe Road uses man-machine cooperation down tube;After Pipe installing is good, with clean stone or brickbat by pipe clamp jail, and base is done well in time;Pipeline Interface smears band interface using cement mortar, and carries out closing water experiment.
By using above-mentioned technical proposal, the unwrapping wire on the basis of sandstone, make pipeline more accurate when laying, and in pipeline Interface is smeared band by cement mortar and closed, and makes the interface of two pipelines water-tight.
The present invention is further arranged to:The cement mortar smears band interface and uses 1:2 cement mortar smear band, and its width is preferably 200~250mm, thickness are preferably 25~35mm, and 2 layers of steel wire should be added in band, and steel wire should anchor into 100 in concrete foundation~ 150 mm。
By using above-mentioned technical proposal, by test, such ratio has more on the basis of structural strength is ensured Good antiseep effect, and steel wire is anchored into concrete foundation, increase cement mortar smears the structural strength of band.
The present invention is further arranged to:The trench backfill is using artificial backfill, and trench backfill is in base base concrete Banketed after intensity is up to standard, while tamp groove both sides, to prevent piping displacement.
By using above-mentioned technical proposal, when worker backfills, first wait the intensity of base base concrete up to standard and then Backfilled, avoid pipeline from moving.
The present invention is further arranged to:At the trench backfill to cap, tamped with frog hammer, then in pipeline two Supporting layer is covered between the cap of side, sets Fill Reinforced With Geogrids to pour in supporting layer, pours one layer above supporting layer again Concrete surface layer.
By using above-mentioned technical proposal, when at trench backfill to cap, first tamped with ramming machine, then covered at cap Lid supporting layer, poured by the Fill Reinforced With Geogrids being embedded in supporting layer, firm supporting construction is formed, then in supporting layer Upper casting concrete top layer, after being tested by large truck, groove will not collapse, and pipeline is not easy fail in compression.
In summary, the invention has the advantages that:By lime unwrapping wire after measurement, then dug out again by machine Groove, the elevation and width of bottom land to be measured in time, prevents from backbreaking, it is ensured that channel bottom soil texture is not disturbed or destroys, Pouring hole is manually preset in bottom land both sides again, support stake is then poured, supporting layer is covered at cap, by being embedded in supporting layer Fill Reinforced With Geogrids pour, form firm supporting construction, then the casting concrete top layer on supporting layer, makes groove will not Collapse, and then pipeline is not easy fail in compression.
Embodiment
Example below, the present invention will be described in detail.
A kind of water supply and drainage construction method, successively including surveying setting-out, channel excavation, piping support structure installation, pipeline peace It is filled with and pipeline backfills.
Surveying setting-out:Gash depth and width are calculated according to actual measurement ground elevation, and opening for pipeline is released with lime line Trough rim line;Channel excavation:Excavated according to gash depth, soil property and groundwater condition, timely measuring flume bottom elevation and width; Piping support structure is installed:Pouring hole is manually preset in channel bottom both sides, then pours support stake;Pipe installing:Trench bottom Portion laying basis, then down tube, An Guan, base and interface successively;Trench backfill:Trench backfill order by groove drainage direction by It is high to be carried out to low layering, and compactness experiment is carried out in time, by lime unwrapping wire after measurement, ditch is then dug out by machine again Groove, the elevation and width of bottom land to be measured in time, prevents from backbreaking, it is ensured that channel bottom soil texture is not disturbed or destroys, then Bottom land both sides manually preset pouring hole, then pour support stake, by Pipe installing in groove, finally by groove draining side Backfilled to layering from high to low, by supporting stake to improve the compression capability of pipeline.
Groove both sides side slope in channel excavation takes 1:0.5 sloping coefficient, not mound in the range of side slope 1m suitable for reading;Ditch Trench bottom retains one layer of 10cm or so and not dug, and artificial clear bottom, groove both sides side slope takes 1:0.5 sloping coefficient, increase groove The stability of both sides cell wall, the soil for reducing groove both sides cell wall caves in, and the not mound in the range of side slope 1m suitable for reading, makes to dig out Soil construction when, will not fall into groove;Channel bottom retains 10cm or so and not digged pit, and by artificial clear bottom, makes groove Bottom is smooth, and the groove for making to dig out facilitates postorder to construct.
Retention groove bottom excavates catch pit, gutter in bottom of trench, is arranged the water of catch pit with water pump without ponding during channel excavation Clearly, catch pit, gutter are excavated in bottom of trench, is cleared the water of catch pit with water pump, channel bottom is not had ponding, improve groove Stability.
Groove avris sets guardrail, and guard rail position sets caution sign, and night suspension red light, the spacing of red light are every for 20m It is right, while the cover plate covered with bearing capacity on groove, groove avris set guardrail, guard rail position sets caution sign, and night Hang red light, the spacing of red light is 20m each pairs, while the cover plate covered with bearing capacity on groove, is ensured at night, pedestrian Do not fall out in groove.
Pouring hole interval 2m in piping support structure installation in channel bottom both sides is default one, in the support stake poured End pours cap, and pouring hole interval 2m is default one, and support stake is then poured on pouring hole, increase support stake supporting pipeline Stability.
Quality inspection should be carried out before Pipe installing to tubing, pipeline is not less than 1000mm pipe of concrete using diameter;Lay sand Stone foundation, the then unwrapping wire on the basis of sandstone, to control the center line of pipe laying, pipeline uses man-machine cooperation down tube;Pipeline After installing, with clean stone or brickbat by pipe clamp jail, and base is done well in time;Pipe joint is smeared band using cement mortar and connect Mouthful, and carry out closing water experiment, the unwrapping wire on the basis of sandstone, make pipeline more accurate when laying, and pass through at pipe joint Cement mortar is smeared band and closed, and makes the interface of two pipelines water-tight.
Cement mortar smears band interface and uses 1:2 cement mortar smear band, and it is preferably 200~250mm that its is wide, and thickness is preferably 25~ 35mm, 2 layers of steel wire should be added with, steel wire should anchor into 100~150 mm in concrete foundation, such by test Ratio has more preferable antiseep effect on the basis of structural strength is ensured, and steel wire is anchored into concrete foundation, increases Cement mortar is added to smear the structural strength of band.
Trench backfill is banketed using artificial backfill, trench backfill after base base concrete intensity is up to standard, simultaneously Groove both sides are tamped, to prevent piping displacement, when worker backfills, first waits the intensity of base base concrete up to standard and then enters Row backfill, avoids pipeline from moving.
At trench backfill to cap, tamped with frog hammer, support is then covered between the cap of pipeline both sides Layer, set Fill Reinforced With Geogrids to pour in supporting layer, pour a layer concrete top layer, trench backfill to cap above supporting layer again When at beam, first tamped with ramming machine, supporting layer is then covered at cap, passes through the Fill Reinforced With Geogrids being embedded in supporting layer Pour, form firm supporting construction, then the casting concrete top layer on supporting layer, after being tested by large truck, groove It will not collapse, pipeline is not easy fail in compression.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (9)

  1. A kind of 1. water supply and drainage construction method, it is characterised in that including:
    Surveying setting-out:Gash depth and width are calculated according to actual measurement ground elevation, and the fluting side of pipeline is released with lime line Line;
    Channel excavation:Excavated according to gash depth, soil property and groundwater condition, timely measuring flume bottom elevation and width;
    Piping support structure is installed:Pouring hole is preset in two artificial side of channel bottom, then pours support stake;
    Pipe installing:Channel bottom laying basis, then down tube, An Guan, base and interface successively;
    Trench backfill:Trench backfill order is layered progress by groove drainage direction from high to low, and carries out compactness experiment in time.
  2. A kind of 2. water supply and drainage construction method according to claim 1, it is characterised in that:Groove two in the channel excavation Take 1 in side slope:0.5 sloping coefficient, not mound in the range of side slope 1m suitable for reading;Channel bottom retains one layer of 10cm or so not Dig, artificial clear bottom.
  3. A kind of 3. water supply and drainage construction method according to claim 2, it is characterised in that:Retention groove bottom during the channel excavation Without ponding, catch pit, gutter are excavated in bottom of trench, is cleared the water of catch pit with water pump.
  4. A kind of 4. water supply and drainage construction method according to claim 2, it is characterised in that:The groove avris sets guardrail, Guard rail position sets caution sign, and night suspension red light, and the spacing of red light is 20m each pairs, while covered with carrying on groove The cover plate of power.
  5. A kind of 5. water supply and drainage construction method according to claim 1, it is characterised in that:In the piping support structure installation Pouring hole interval 2m in channel bottom both sides presets one, and the support stake upper end poured pours cap.
  6. A kind of 6. water supply and drainage construction method according to claim 1, it is characterised in that:Tubing is tackled before the Pipe installing Quality inspection is carried out, pipeline is not less than 1000mm pipe of concrete using diameter;Sandstone basis is laid, is then put on the basis of sandstone Line, to control the center line of pipe laying, pipeline uses man-machine cooperation down tube;After Pipe installing is good, with clean stone or brickbat By pipe clamp jail, and do base well in time;Pipe joint smears band interface using cement mortar, and carries out closing water experiment.
  7. A kind of 7. water supply and drainage construction method according to claim 6, it is characterised in that:The cement mortar smears band interface Using 1:2 cement mortar smear band, and it is preferably 200~250mm that its is wide, and thickness is preferably 25~35mm, and 2 layers of steel wire should be added in band, Steel wire should anchor into 100~150 mm in concrete foundation.
  8. A kind of 8. water supply and drainage construction method according to claim 6, it is characterised in that:The trench backfill is returned using artificial Fill out, trench backfill is banketed after base base concrete intensity is up to standard, while tamps groove both sides, to prevent piping displacement.
  9. A kind of 9. water supply and drainage construction method according to claim 5, it is characterised in that:The trench backfill is to cap Place, with frog hammer compaction in layers, then covers supporting layer between the cap of pipeline both sides, and soil is set in supporting layer Work grid reinforced pouring, a layer concrete top layer is poured again above supporting layer.
CN201710889379.XA 2017-09-27 2017-09-27 A kind of water supply and drainage construction method Pending CN107630500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710889379.XA CN107630500A (en) 2017-09-27 2017-09-27 A kind of water supply and drainage construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710889379.XA CN107630500A (en) 2017-09-27 2017-09-27 A kind of water supply and drainage construction method

Publications (1)

Publication Number Publication Date
CN107630500A true CN107630500A (en) 2018-01-26

Family

ID=61102823

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710889379.XA Pending CN107630500A (en) 2017-09-27 2017-09-27 A kind of water supply and drainage construction method

Country Status (1)

Country Link
CN (1) CN107630500A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108457357A (en) * 2018-02-13 2018-08-28 中建六局土木工程有限公司 A kind of current-formed silt soil layer pipeline construction method
CN108570998A (en) * 2018-05-16 2018-09-25 中交第二航务工程局有限公司 The construction method of lowering of watertable during a kind of subgrade construction
CN109811863A (en) * 2019-03-19 2019-05-28 广州盈德建筑工程有限公司 A kind of water supply and drainage construction method
CN111075992A (en) * 2020-01-03 2020-04-28 青岛华德仪表工程有限公司 Water supply pipeline construction method
CN111155623A (en) * 2019-12-10 2020-05-15 宣城市政建设集团有限公司 Construction and installation method for outdoor square stainless steel and plastic finished product combined drainage ditch
CN111593780A (en) * 2020-04-30 2020-08-28 南京满能建设工程技术有限公司 Construction method for laying communication pipeline
CN114606932A (en) * 2022-03-11 2022-06-10 东珠生态环保股份有限公司 Soft clay foundation treatment method suitable for municipal road pipeline laying
CN116104173A (en) * 2021-11-11 2023-05-12 南京绿盛通风设备有限公司 Method for installing pipeline of outdoor water supply and drainage system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101565964A (en) * 2009-05-25 2009-10-28 青岛恒生源集团建设有限公司 Construction method for mounting outdoor embedded high-density polyethylene double-wall corrugated drain pipe
CN102877538A (en) * 2012-10-22 2013-01-16 济南城建集团有限公司 Construction method for fixing HDPE (high-density polypropylene) pipe by embedding iron wires
CN103670448A (en) * 2014-01-02 2014-03-26 中铁三局集团有限公司 Underground pipeline protection device and support method applying underground pipeline protection device
CN103982707A (en) * 2014-02-27 2014-08-13 罗晓晖 Laying-in-site concrete-enveloped flexible pipe diversion system
CN104120731A (en) * 2014-07-24 2014-10-29 黄俊文 Tunnel settlement protecting device and construction method thereof
CN104895174A (en) * 2015-06-02 2015-09-09 杭州江润科技有限公司 Construction method of large-diameter rain sewage pipeline assembling type component structure
CN106978843A (en) * 2017-04-25 2017-07-25 杭州之江市政建设有限公司 Municipal drainage pipeline construction technology

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101565964A (en) * 2009-05-25 2009-10-28 青岛恒生源集团建设有限公司 Construction method for mounting outdoor embedded high-density polyethylene double-wall corrugated drain pipe
CN102877538A (en) * 2012-10-22 2013-01-16 济南城建集团有限公司 Construction method for fixing HDPE (high-density polypropylene) pipe by embedding iron wires
CN103670448A (en) * 2014-01-02 2014-03-26 中铁三局集团有限公司 Underground pipeline protection device and support method applying underground pipeline protection device
CN103982707A (en) * 2014-02-27 2014-08-13 罗晓晖 Laying-in-site concrete-enveloped flexible pipe diversion system
CN104120731A (en) * 2014-07-24 2014-10-29 黄俊文 Tunnel settlement protecting device and construction method thereof
CN104895174A (en) * 2015-06-02 2015-09-09 杭州江润科技有限公司 Construction method of large-diameter rain sewage pipeline assembling type component structure
CN106978843A (en) * 2017-04-25 2017-07-25 杭州之江市政建设有限公司 Municipal drainage pipeline construction technology

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108457357A (en) * 2018-02-13 2018-08-28 中建六局土木工程有限公司 A kind of current-formed silt soil layer pipeline construction method
CN108570998A (en) * 2018-05-16 2018-09-25 中交第二航务工程局有限公司 The construction method of lowering of watertable during a kind of subgrade construction
CN109811863A (en) * 2019-03-19 2019-05-28 广州盈德建筑工程有限公司 A kind of water supply and drainage construction method
CN111155623A (en) * 2019-12-10 2020-05-15 宣城市政建设集团有限公司 Construction and installation method for outdoor square stainless steel and plastic finished product combined drainage ditch
CN111075992A (en) * 2020-01-03 2020-04-28 青岛华德仪表工程有限公司 Water supply pipeline construction method
CN111075992B (en) * 2020-01-03 2021-12-17 青岛华德仪表工程有限公司 Water supply pipeline construction method
CN111593780A (en) * 2020-04-30 2020-08-28 南京满能建设工程技术有限公司 Construction method for laying communication pipeline
CN116104173A (en) * 2021-11-11 2023-05-12 南京绿盛通风设备有限公司 Method for installing pipeline of outdoor water supply and drainage system
CN114606932A (en) * 2022-03-11 2022-06-10 东珠生态环保股份有限公司 Soft clay foundation treatment method suitable for municipal road pipeline laying

Similar Documents

Publication Publication Date Title
CN107630500A (en) A kind of water supply and drainage construction method
CN110306616B (en) Construction method of sewage pipeline
CN107938692B (en) Drainage and recharge construction method and structure
CN100412275C (en) Waterproof and plugging construction method for precipitation well in foundation pit
CN203603105U (en) Wall plate type ecological retaining wall bank protection structure
CN107587557A (en) Outdoor water engineering construction method
CN113774917B (en) Safe construction method for earth and rockfill excavation and side slope supporting engineering
CN207512745U (en) A kind of caisson device and its foundation pit structure
CN106192665B (en) A kind of sponge urban road rain infiltration system and its construction method
CN101597888B (en) Construction method of municipal drainage culvert sinking trough
CN104762982A (en) Construction method of watery red sandstone geological underground water level control
CN215105880U (en) Concrete inverted well suitable for connecting new and old water supply and drainage pipelines
CN112900583A (en) Spatial intersection construction method for rainwater and sewage pipe positions at same elevation
CN210013227U (en) Drainage device capable of effectively reducing anti-floating design water level of basement
CN111963214A (en) Tunnel molding waterproof construction process
CN207633496U (en) Integrated rainwater recycling system for sponge cities in super-large square
CN113089681B (en) Waterproof invasion structure of deep foundation pit base concrete cushion layer and construction method
CN110512594A (en) The simple and easy method of churning driven opportunity cavity pore-forming
CN113700111A (en) Construction method of rainwater permeation, drainage and reuse integrated system
CN113374055A (en) Construction method of buried reinforced HDPE (high-density polyethylene) spiral corrugated pipe
CN104088352A (en) Ground rainwater comprehensive utilization structure
CN207828994U (en) It is a kind of draining and recharge constructing structure
CN110939150A (en) Emergency rescue method for rapidly constructing large-hydraulic-slope-drop-ratio thin-wall structure in confined water inrush accident state
CN216552030U (en) Basement outer wall fat groove falls drainage structures
CN204491797U (en) A kind of sports ground dmp filter stacking device

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180126