CN1319700A - Technological equipment for airprot runway foundation cement mortar filling consolidation - Google Patents
Technological equipment for airprot runway foundation cement mortar filling consolidation Download PDFInfo
- Publication number
- CN1319700A CN1319700A CN 01100550 CN01100550A CN1319700A CN 1319700 A CN1319700 A CN 1319700A CN 01100550 CN01100550 CN 01100550 CN 01100550 A CN01100550 A CN 01100550A CN 1319700 A CN1319700 A CN 1319700A
- Authority
- CN
- China
- Prior art keywords
- grouting
- slip casting
- basic unit
- airfield runway
- equipment
- 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.)
- Granted
Links
- 239000011083 cement mortar Substances 0.000 title 1
- 238000007596 consolidation process Methods 0.000 title 1
- 239000002002 slurry Substances 0.000 claims abstract description 38
- 238000010276 construction Methods 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000007569 slipcasting Methods 0.000 claims description 45
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 239000004568 cement Substances 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 230000002528 anti-freeze Effects 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000011440 grout Substances 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000005728 strengthening Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003137 locomotive effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The grouting construction process for strengthening base course of airport runway includes the following steps: distributing holes, drilling holes, cleaning holes, installing grouting equipment and grout compressing tightly sealing equipment, pressure gauge and flow meter, grouting, plugging grouting holes and cleaning runway surface. The slurry pump of said equipment is connected with grout divider, said grout divider at least possesses two grout outlets, said grout outlet are connected with grout-conveying pipe by means of flow sensor and switch, and said grout conveying pipe is connected with grouting performated pipe, around it there is compressing sealing equipment, including rubber plug, rubber plug washer, sealing ring, compression base seat and positioning bolt, etc.
Description
The present invention relates to a kind of ground stabilization Processes and apparatus.
After the use of airfield runway through many years, the road face occurs damaged, and the phenomenon of coming to nothing appears in the sand pebble layer of basic unit and surface layer part, need carry out runway strengthening, to guarantee aircraft flight safety.Existing foundation grouting reinforcement process equipment takes up an area of big, dismounting inconvenience, and the construction period is long, is not suitable for airfield runway and uses, and needs placing of material place, and power supply, water supply all need backguy to take over, the not only normal navigation of influence, and can move to aircraft and bring potential safety hazard.Existing basic unit grouting and reinforcing construction equipment does not have branch slurry device, no vehicular, seal around the grouting tube bad, spillage easily, the job site face that paves is big, mechanization degree is not high, does not regain round the clock.Adopt existing construction technology to reinforce an airfield runway and need suspend about 15 days,, will cause about 5.4 hundred million yuans of the loss of suspending if per day navigation amount was 450 sortie/days.
The purpose of this invention is to provide a kind of airfield runway basic unit's grouting and reinforcing construction technology and equipment, improve mechanization degree, equipment construction flexible for installation, rapid reduces the economic loss of suspending.
Technical scheme of the present invention: comprise construction technology and equipment, wherein construction sequence:
(1). cloth hole, slip casting diffusion radius 1-3 rice;
(2). boring, with core-drill(ing) machine boring, submersible creeps into 10~15cm earlier;
(3). clear hole, in high pressure draught purge hole;
(4). grouting equipment is installed;
(5). the slip casting pressed sealing device is installed, pressure meter and flowmeter;
(6). slip casting, its grouting sequence are both sides, the elder generation outside, and the middle part, back should be mentioned to send after the single hole slip casting slip casting for the first time and be starched pipe, treats to carry out the slip casting second time after the face grouting pressure dissipates, and grouting pressure is not more than 2.5MPa;
(7). the shutoff injected hole;
(8). the cleaning of road face.
In above-mentioned its (5) injecting paste material be cement paste and antifreeze morning strong composite water-reducing agent.
A complete set of equipment all is automobile-carried formula, comprises boring a complete set of equipment and slip casting a complete set of equipment.
The boring a complete set of equipment mainly comprises core-drill(ing) machine, air pressure gun, portable electric hammer, clear hole device, pneumatics unit, generating set, waterwheel and lighting etc.
The slip casting a complete set of equipment mainly comprises airfield runway basic unit grouting and reinforcing construction equipment, the automatic collection of grouting parameter and analysis process system, cleaning equipment, settlement observation instrument.
Airfield runway basic unit grouting and reinforcing construction equipment comprises again stirring starches part, circulating tank, slush pump, grouting tube, generator, it is characterized in that: slush pump links to each other with a minute slurry device, divide the slurry device that at least two slip casting outlets are arranged, be connected with sending the slurry pipe with switch through flow transmitter, send the slurry pipe to connect grouting tube, pressed sealing device is arranged on every side.
The slip casting exit of above-mentioned branch slurry device is provided with pressure meter and safety relief valve.
Above-mentioned branch slurry device connects test of vehicular grouting parameter and analysis process system.
Above-mentioned pressed sealing device comprises and is with plug, plug packing ring and O-ring seal around the grouting tube, on O-ring seal and 2 on ground compress pedestal, its middle part perforation is provided with the positioning bolt that inserts ground.
Above-mentioned positioning bolt and compress and be lined with the balance cushion block between the pedestal.
On the above-mentioned positioning bolt crank of stepping up is arranged.
Advantage of the present invention: this technology makes and to carry on construction work at night, the navigation on daytime becomes possibility, and construction and is not stayed any vestige flexibly, rapidly, reduces the economic loss of suspending, and has guaranteed that the airport normally opens the navigation or air flight.Be applicable to Large Square, large tracts of land sandy gravel basic unit terrace.
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is the on-the-spot schematic diagram of arranging of technology of the present invention;
Fig. 2 is the structural representation of airfield runway of the present invention basic unit grouting and reinforcing construction equipment;
Fig. 3 is the structural representation of pressed sealing device in the airfield runway of the present invention basic unit grouting and reinforcing construction equipment;
Fig. 4 divides the slurry device and send slurry pipe connection diagram in the airfield runway of the present invention basic unit grouting and reinforcing construction equipment.
Embodiment: processing step: (1). cloth hole, slip casting diffusion radius 1-3 rice, every plate 5 holes;
(2). boring, earlier with core-drill(ing) machine boring, submersible creeps into 10~15cm, withdraw from drilling rod and take out core, simultaneously with instrument during operation trickling ground and hole in water clean out.Be drilled into below the panel with the air pressure gun operation afterwards, should verify following cable of pavement slab and pipeline situation before the pore-forming;
(3). clear hole, with the clear hole of device, clear hole, clear hole device is connected with air compressor machine, with spare and the residue in the high pressure draught purge hole, for avoiding the hole of collapsing;
(4). grouting equipment is installed, slurries are after stirring, send in the branch slurry device through slush pump pressure, divide the slurry device to be divided into five slip casting outlets, slurries all will pass through the flow directions such as flow transmitter, valve switch and send in the slurry pipe, send the slurry pipe to connect grouting tube, are respectively equipped with pressure meter and safety relief valve simultaneously near the slip casting outlet, with convenient slurries pressure is monitored at any time, guarantee construction and device security.Slurries are when flowing through flow transmitter, and the inductor of flow transmitter is responded to the mobile generation of slurries, and it is changed into the mainboard that the signal of telecommunication transfers to corresponding flow meter, and mainboard transfers to display screen after handling through data, and it is right that display screen shows
(5). the slip casting pressed sealing device is installed, pressure meter and flowmeter;
After hole depth adheres to specification, can insert grouting tube, seal plug-hole,, pressed sealing device is installed then in plugging device loam cake one annular iron plate with plugging device.Slurries must be with the grouting tube sealing and fixing in injected hole before injection, and cover top cement plug packing ring in grouting tube puts O-ring seal afterwards earlier, overlaps top cement plug again, inserts in the injected hole then.One location bolt is set at the position of the about 200mm of distance injected hole, to compress base sleeve then behind positioning bolt, the horizontal base head is buckled on the plug packing ring, the balance cushion block is pressed on one's body the pedestal by positioning bolt, step up crank and positioning bolt and be pressed on the balance cushion block, screw crank, just be pressed on the plug packing ring by the horizontal base head by screwed connection, plug is contacted, to reach enough slips casing by pressure with the sealing of slip casting aperture.
(6). slip casting.Allowing under the pressure of slip casting that adopt the mode of flow-control to give slip casting, grouting mode is a cycling element with every panel, every cycling element is by the slip casting simultaneously of 5 holes, and slip casting is operation from bottom to top, at twice slip casting, insert floral tube slip casting for the first time earlier, for the second time slip casting once more behind the tube drawing 5-10cm.Twice slip casting is not less than 5-10 minute blanking time.Make slurries filling widely in the hole or space of rubble and aggregate chips basic unit, and continue, produce a desired effect with gelling.In the time of slip casting, utilize special flow Acquisition Instrument reading, write down each hole grouting amount of every block of plate and printing.Every plate slip casting time should be controlled according to grouting pressure, pavement slab lifting amount and the excessive slurry situation of plate seam, and when grouting pressure remained on certain numerical value, grouting amount no longer increased, and can stop slip casting.For avoiding slurries to run off, grouting sequence should be during construction: earlier runway centerline outside pavement slab is carried out slip casting, seal both sides, do not exosmose in the time of can guaranteeing the slip casting of runway middle part like this, the extruding that helps slurries is with closely knit, and then to middle part slip casting.
Injection slurry be the straight cement slurries and antifreeze morning strong composite water-reducing agent, water/binder ratio is 0.8.Grouting pressure is not more than 2.5MPa, when pressure surpasses, stop 5-10 minute after, continue slip casting.
(7). the shutoff injected hole.After grouting with plunger finishes, should in time give the sealing of hole operation, promptly cram boring to the aperture with super-early strength cement 525R, aperture palpus levelling, and than the low 3-5mm of original ground.
(8). the cleaning of road face.In the time of panel slip casting, foreign material such as rubble that will go out cement core, clear Kong Qing and aggregate chips, excessive cement grout thoroughly clean, and the preceding road face that guarantees to accomplish to hand over to the next shift does not stay more any hidden danger that jeopardizes aircraft flight.In the grouting and reinforcing construction of Capital Airport airfield runway basic unit, normally open the navigation or air flight daytime, the construction of marching into the arena night.Compare about 2.36 hundred million yuan of minimizing economic loss with the construction of suspending fully.
A complete set of equipment all is automobile-carried formula, comprises boring a complete set of equipment and slip casting a complete set of equipment.
The boring a complete set of equipment mainly comprises core-drill(ing) machine, air pressure gun, portable electric hammer, clear hole device, pneumatics locomotive
1, generating locomotive 2, water tender 3 and lighting etc.
The slip casting a complete set of equipment mainly comprises airfield runway basic unit grouting and reinforcing construction equipment, vehicular grouting parameter test and analysis process system 4, cleaning equipment, settlement observation instrument automatically.
Wherein airfield runway basic unit grouting and reinforcing construction equipment comprises again and stirs slurry car 5, circulating tank 6, slush pump 7, grouting vehicle 8, generating locomotive 9, slush pump 7 is starched device 10 with the branch on the grouting vehicle 8 and is linked to each other, divide slurry device 10 that at least two slip casting outlets 11 are arranged, be connected with sending slurry pipe 14 with switch 13 through flow transmitter 12, divide the slip casting of starching device 10 to export 11 places and be provided with pressure meter 16 and safety relief valve 17.Divide the slurry device to connect test of vehicular grouting parameter and analysis process system 4.Send slurry pipe 14 to connect grouting tube 15, pressed sealing device is arranged on every side by connecting bolt 24.
Pressed sealing device is to be with plug 18, plug packing ring 19 and O-ring seal 25 around grouting tube 15, on O- ring seal 25 and 2 on ground compress pedestal 20, its middle part perforation is provided with the positioning bolt 21 that inserts ground.Positioning bolt 21 and compress and be lined with balance cushion block 22 between the pedestal 20.The crank of stepping up 23 is arranged on the positioning bolt 21.Grouting tube stretches in the graded sand boulder bed 27 through concrete cushion 26, carries out slip casting near cushion lime 28.
Claims (8)
1, a kind of airfield runway basic unit grouting and reinforcing construction technology, it is characterized in that: its processing step is:
(1). cloth hole, slip casting diffusion radius 1-3 rice;
(2). boring, with core-drill(ing) machine boring, submersible creeps into 10~15cm earlier;
(3). clear hole, in high pressure draught purge hole;
(4). grouting equipment is installed;
(5). the slip casting pressed sealing device is installed, pressure meter and flowmeter;
(6). slip casting, its grouting sequence are both sides, the elder generation outside, and the middle part, back should be mentioned to send after the single hole slip casting slip casting for the first time and be starched pipe, treats to carry out the slip casting second time after the face grouting pressure dissipates, and grouting pressure is not more than 2.5MPa;
(7). the shutoff injected hole;
(8). the cleaning of road face.
2, airfield runway according to claim 1 basic unit grouting and reinforcing construction technology is characterized in that: in its (5) injecting paste material be cement paste and antifreeze morning strong composite water-reducing agent.
3, a kind of airfield runway basic unit grouting and reinforcing construction equipment comprises and stirs slurry part, circulating tank, slush pump, grouting tube, generator, it is characterized in that: slush pump links to each other with a minute slurry device, divide the slurry device that at least two slip casting outlets are arranged, be connected with sending the slurry pipe with switch through flow transmitter, send the slurry pipe to connect grouting tube, pressed sealing device is arranged on every side.
4, airfield runway according to claim 3 basic unit grouting and reinforcing construction equipment is characterized in that: the slip casting exit of described branch slurry device is provided with pressure meter and safety relief valve.
5, airfield runway according to claim 3 basic unit grouting and reinforcing construction equipment is characterized in that: described branch slurry device connects test of vehicular grouting parameter and analysis process system.
6, airfield runway according to claim 3 basic unit grouting and reinforcing construction equipment, it is characterized in that: described pressed sealing device is with plug, plug packing ring and O-ring seal around comprising grouting tube, on O-ring seal and 2 on ground compress pedestal, its middle part perforation is provided with the positioning bolt that inserts ground.
7, airfield runway according to claim 3 basic unit grouting and reinforcing construction equipment is characterized in that: described positioning bolt and compress and be lined with the balance cushion block between the pedestal.
8, airfield runway according to claim 3 basic unit grouting and reinforcing construction equipment is characterized in that: on the described positioning bolt crank of stepping up is arranged.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 01100550 CN1126841C (en) | 2001-01-12 | 2001-01-12 | Technological equipment for airprot runway foundation cement mortar filling consolidation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 01100550 CN1126841C (en) | 2001-01-12 | 2001-01-12 | Technological equipment for airprot runway foundation cement mortar filling consolidation |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1319700A true CN1319700A (en) | 2001-10-31 |
CN1126841C CN1126841C (en) | 2003-11-05 |
Family
ID=4651683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 01100550 Expired - Fee Related CN1126841C (en) | 2001-01-12 | 2001-01-12 | Technological equipment for airprot runway foundation cement mortar filling consolidation |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1126841C (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105019826A (en) * | 2015-05-28 | 2015-11-04 | 中铁第四勘察设计院集团有限公司 | Drilling construction method for existing airport ground |
CN105442425A (en) * | 2015-12-18 | 2016-03-30 | 安徽优特公路养护科技有限公司 | Rapid repairing device and method for diseases of roadbase |
CN105544368A (en) * | 2015-12-07 | 2016-05-04 | 江美娣 | Method and system for pre-repairing road before road damage |
CN105625153A (en) * | 2015-12-18 | 2016-06-01 | 安徽优特公路养护科技有限公司 | High-polymer repair method for road base damages |
CN106013836A (en) * | 2016-07-02 | 2016-10-12 | 杭州固特建筑加固技术工程有限公司 | Pressure injection device for reinforcement industry |
CN108457163A (en) * | 2016-04-04 | 2018-08-28 | 吴振彪 | A kind of road maintenance device and reinforcement |
CN108951338A (en) * | 2018-08-23 | 2018-12-07 | 山东承坤信息科技有限公司 | A kind of anticracking method for building up plastic race track |
CN109555526A (en) * | 2018-11-16 | 2019-04-02 | 中铁二十三局集团有限公司 | Grouting strengthening method for underground cavity |
CN112853851A (en) * | 2021-01-15 | 2021-05-28 | 中铁北京工程局集团有限公司 | Rapid integral plate replacement construction process for damaged road panel in civil aviation non-navigation construction |
-
2001
- 2001-01-12 CN CN 01100550 patent/CN1126841C/en not_active Expired - Fee Related
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105019826A (en) * | 2015-05-28 | 2015-11-04 | 中铁第四勘察设计院集团有限公司 | Drilling construction method for existing airport ground |
CN105019826B (en) * | 2015-05-28 | 2017-08-29 | 中铁第四勘察设计院集团有限公司 | existing airport ground drilling construction method |
CN105544368A (en) * | 2015-12-07 | 2016-05-04 | 江美娣 | Method and system for pre-repairing road before road damage |
CN105442425A (en) * | 2015-12-18 | 2016-03-30 | 安徽优特公路养护科技有限公司 | Rapid repairing device and method for diseases of roadbase |
CN105625153A (en) * | 2015-12-18 | 2016-06-01 | 安徽优特公路养护科技有限公司 | High-polymer repair method for road base damages |
CN108457163A (en) * | 2016-04-04 | 2018-08-28 | 吴振彪 | A kind of road maintenance device and reinforcement |
CN108457163B (en) * | 2016-04-04 | 2020-07-10 | 广州北环高速公路有限公司 | Road maintenance device and reinforcing method |
CN106013836A (en) * | 2016-07-02 | 2016-10-12 | 杭州固特建筑加固技术工程有限公司 | Pressure injection device for reinforcement industry |
CN108951338A (en) * | 2018-08-23 | 2018-12-07 | 山东承坤信息科技有限公司 | A kind of anticracking method for building up plastic race track |
CN108951338B (en) * | 2018-08-23 | 2020-08-14 | 广东弘道体教科技产业有限公司 | Anti-cracking plastic track construction method |
CN109555526A (en) * | 2018-11-16 | 2019-04-02 | 中铁二十三局集团有限公司 | Grouting strengthening method for underground cavity |
CN112853851A (en) * | 2021-01-15 | 2021-05-28 | 中铁北京工程局集团有限公司 | Rapid integral plate replacement construction process for damaged road panel in civil aviation non-navigation construction |
Also Published As
Publication number | Publication date |
---|---|
CN1126841C (en) | 2003-11-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104846810B (en) | Self-circulating posterior grouting bored pile construction method | |
CN110185844B (en) | Shallow-earthing large-diameter pipe jacking construction method | |
CN101806059B (en) | Drilling, grouting and sand-throwing process of ground surface of mined-out region under highway | |
CN1126841C (en) | Technological equipment for airprot runway foundation cement mortar filling consolidation | |
CN111927548A (en) | Method for plugging abandoned coal mine well mouth | |
CN107059920A (en) | Loess formation piping lane construction technology | |
CN104533449A (en) | Rack for tunnel excavation and adit construction method applying rack | |
CN108487297A (en) | The construction method that bracing members are set up in a kind of half lid excavation construction of subway station | |
JP3418069B2 (en) | Injection method and injection equipment | |
CN111676987A (en) | Construction method for backfilling construction of construction fertilizer tank by vibrating, slurry-flushing and ramming method | |
CN103276736B (en) | Trailer-type high polymer grouting system | |
CN2520346Y (en) | Base course grouting reinforcing construction apparatus for airport runway | |
CN101275393A (en) | Method for controlling running sand in underground engineering and grouting system therefor | |
CN103205986A (en) | Concrete raft foundation construction-joint grouting device and construction method | |
CN205637048U (en) | Drainage pipe spraying restoration construction car | |
CN208748461U (en) | It is a kind of for protecting the environmental type road of shallow embedding pipeline | |
KR940002457B1 (en) | Method and apparatus for increasing bearing capacity of soft soil and constructing cutoff wall | |
Kaneshiro et al. | Controlled Low Strength Material for Pipeline Backfill— Specifications, Case Histories and Lessons Learned | |
CN205347997U (en) | Bridge | |
CN109826176B (en) | Pipe trench engineering construction process for coastal special silt geology | |
CN107130627A (en) | A kind of construction method of the observation pier based on GNSS system for monitoring displacement | |
JPH08296205A (en) | Method for filling underground cavity | |
CN111455970B (en) | Reinforcing treatment method for backfilled weak miscellaneous soil area containing fertilizer groove | |
CN209373443U (en) | Metering type underwater concrete super-irrigation height control device | |
CN113846695B (en) | Reverse construction method basement construction method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 1100550.5 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 1201102.9 utility model patent to be given up, and in the 19 volume of the 45 issue of the new type of communique on the patent right to abandon the announcement. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |