CN111546506A - Underwater reinforced concrete slab cutting method - Google Patents
Underwater reinforced concrete slab cutting method Download PDFInfo
- Publication number
- CN111546506A CN111546506A CN202010421105.XA CN202010421105A CN111546506A CN 111546506 A CN111546506 A CN 111546506A CN 202010421105 A CN202010421105 A CN 202010421105A CN 111546506 A CN111546506 A CN 111546506A
- Authority
- CN
- China
- Prior art keywords
- cut
- auxiliary positioning
- concrete slab
- positioning pile
- cutting
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/08—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws
- B28D1/082—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws consisting of chain saws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/04—Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The application relates to a method for cutting an underwater reinforced concrete slab, which comprises the following steps: determining the position of a concrete slab to be cut according to a cofferdam drawing so as to determine the installation position of the auxiliary positioning pile; measuring and determining the actual installation position of the auxiliary positioning pile in the cofferdam by using a total station, and arranging a mark at the actual installation position; placing a drilling machine on a buoyancy tank, and drilling underwater by the drilling machine to form a mounting hole after the buoyancy tank is moved to an actual mounting position provided with an identifier; butting the auxiliary positioning pile with the mounting hole to fix the auxiliary positioning pile, wherein a pulley is arranged on the auxiliary positioning pile and is close to the concrete slab to be cut; install the rope saw chain on the pulley in order to form the rope saw machine, treat to cut concrete slab and cut, convenient and fast has also reduced working cost when having improved work efficiency.
Description
Technical Field
The invention relates to a method for cutting an underwater reinforced concrete slab, and belongs to the technical field of building construction.
Background
If a part of the plate bodies needs to be removed due to construction, the plate body structure outside the range to be removed is damaged or the water depth is large. At present, the scheme of breaking the underwater concrete slab structure generally adopts a hydraulic breaker to break, the process is simple and violent, the efficiency is high, but the damage to the peripheral slab structure is large, and the method is not suitable for deep water section. The other method is underwater hole arrangement or manual operation, and the method has the advantages of large workload, long operation period and high safety risk.
Disclosure of Invention
The invention aims to provide an underwater reinforced concrete plate cutting method which can be used for cutting a concrete plate to be cut, simultaneously preventing the concrete plate needing to be reserved from being damaged and improving the working efficiency.
In order to achieve the purpose, the invention provides the following technical scheme: a method of cutting an underwater reinforced concrete panel, the method comprising:
determining the position of a concrete slab to be cut according to a cofferdam drawing so as to determine the installation position of the auxiliary positioning pile;
measuring and determining the actual installation position of the auxiliary positioning pile in the cofferdam by using a total station, and arranging a mark at the actual installation position;
placing a drilling machine on a buoyancy tank, and drilling underwater by the drilling machine to form a mounting hole after the buoyancy tank is moved to an actual mounting position provided with an identifier;
butting the auxiliary positioning pile with the mounting hole to fix the auxiliary positioning pile, wherein a pulley is arranged on the auxiliary positioning pile and is arranged close to the concrete slab to be cut;
installing a wire saw chain on the pulley to form a wire saw machine to cut the concrete slab to be cut.
Further, the "drilling machine performs underwater drilling to form the mounting hole" specifically includes:
anchoring the buoyancy tank to position the buoyancy tank after the buoyancy tank reaches an actual installation position provided with an identification;
the drilling machine is provided with a drill rod connected with a drill bit, so that the center of the drill rod and the mark are positioned in the same vertical plane, and a total station is adopted for checking to finish centering;
the drill rod is driven under water until it contacts the slab to be cut and the drill is activated to drill the hole until the drill bit passes through the slab to be cut to form a mounting hole.
Further, the method further comprises:
after the installation hole is formed, cleaning fragments of the concrete slab formed by drilling out of the installation hole.
Further, the "butting the auxiliary positioning pile with the mounting hole to fix the auxiliary positioning pile" is specifically that:
inserting and driving actions are carried out through a manipulator so that the auxiliary positioning piles are fixedly connected with the mounting holes in an abutting mode;
after the auxiliary positioning pile is installed, the distance between the pulley and the concrete slab to be cut in the height direction is more than or equal to 80 cm.
Further, the auxiliary positioning piles are provided with at least four auxiliary positioning piles, and the at least four auxiliary positioning piles are respectively arranged at four corners of the concrete slab to be cut.
Further, the method further comprises:
determining the number of pulleys arranged on each auxiliary positioning pile according to the cutting direction of the concrete slab to be cut;
at least two groups of pulleys are arranged on at least two auxiliary positioning piles on one side, and at least one group of pulleys is arranged on at least two auxiliary positioning piles on the other side; wherein one of the at least two sets of pulleys is located below the concrete slab to be cut.
Further, the "determining the installation position of the auxiliary positioning pile" specifically includes:
determining the position of the auxiliary positioning pile according to the size of the concrete slab to be cut, wherein the position of the auxiliary positioning pile is outwards deviated from the periphery of the concrete slab to be cut.
Further, the offset distance is greater than or equal to 0.5 m.
Further, the method further comprises:
before the concrete slab to be cut is cut, washing sludge on and around the concrete slab to be cut and clay on the auxiliary positioning pile by using a high-pressure water gun;
and checking whether the pulley on the auxiliary positioning pile is damaged or not to ensure that the pulley can work normally.
The invention has the beneficial effects that: through installing auxiliary positioning pile around waiting to cut concrete slab, and be provided with the pulley on the auxiliary positioning pile, install rope saw chain in order to form the rope saw on the pulley to treating the cutting subassembly and carrying out the cutting action, the rope saw cutting just can not lead to the fact destruction to waiting to cut the periphery of concrete slab fast, and convenient and fast has also reduced working cost when having improved work efficiency.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a flow chart of an underwater reinforced concrete slab cutting method of the present invention.
Fig. 2 is a schematic view of the underwater reinforced concrete slab cutting method of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, in a preferred embodiment of the present invention, a method for cutting an underwater reinforced concrete slab includes:
and determining the position of the concrete slab 4 to be cut according to the cofferdam drawing so as to determine the installation position of the auxiliary positioning pile 2. Specifically, the position of the auxiliary positioning pile 2 needs to be determined according to the size of the concrete slab 4 to be cut, and the position of the auxiliary positioning pile 2 is outwards offset from the periphery of the concrete slab 4 to be cut. The purpose of this is to: when the auxiliary positioning pile 2 can be installed, a space is reserved between the auxiliary positioning pile 2 and the concrete slab 4 to be cut so as to facilitate the completion of the subsequent cutting work. In this embodiment, the offset distance is greater than or equal to 0.5 m. Indeed, in other embodiments, the offset distance may be other, and is not specifically limited herein, depending on the actual situation.
The total station is used to measure and determine the actual installation position of the auxiliary positioning pile 2 in the cofferdam, and a mark is arranged at the actual installation position, the mark is a buoy, and indeed, in other embodiments, the mark may be other marks, which are not specifically limited herein, depending on the actual situation. For example, when the actual installation location is on shore, the tendon heads are used as markers to highlight.
A drilling machine is placed on a buoyancy tank 1, and after the buoyancy tank 1 is moved to an actual installation position with a mark, the drilling machine performs underwater drilling to form an installation hole. Wherein, the buoyancy tank 1 is formed by splicing two 3m 6m 1.5m iron boxes. After the buoyancy tank 1 reaches the actual installation location where the identification is provided, the buoyancy tank 1 is anchored so that the buoyancy tank 1 is positioned. The drilling machine is provided with a drill rod connected with a drill bit, the buoyancy tank 1 is anchored so that the center of the drill rod and the mark are located in the same vertical plane, and meanwhile, a total station is adopted for checking so as to guarantee accurate positioning, so that centering action is completed.
The length of the drill rod is determined according to the actual water depth, and is not specifically limited herein. A drill bit is provided at one end of the drill rod, the drill rod is extended under water until it contacts the concrete slab 4 to be cut, and the drill is activated to perform drilling work until the drill bit passes through the concrete slab 4 to be cut to form a mounting hole. The diameter of the drill bit is 800mm, and indeed, in other embodiments, the diameter of the drill bit may be other, which is not specifically limited herein, depending on the actual situation. It is noted that during drilling, the drilling speed of the drilling machine needs to be strictly controlled so that it maintains a slow drilling condition to prevent the drilling machine from deviating. After the mounting hole is formed, the fragments of the concrete plate formed by drilling are cleaned out of the mounting hole, so that the fragments are prevented from influencing the installation of the auxiliary positioning hole and further influencing the subsequent cutting task.
The auxiliary positioning pile 2 is butted with the mounting hole to fix the auxiliary positioning pile 2, specifically, a manipulator is required to perform inserting and driving actions on the auxiliary positioning pile 2 so that the auxiliary positioning pile 2 is butted and fixed with the mounting hole, and the manipulator can be selected according to actual conditions, for example, the manipulator can be a hydraulic manipulator and the like, and is not specifically limited herein and is determined according to actual conditions. Wherein the manipulator is placed on the buoyancy tank 1 to perform a plunging motion. When the actual installation position of the auxiliary positioning pile 2 is close to the shore, the manipulator is directly placed on the shore. The auxiliary positioning piles 2 are provided with at least four, and the at least four auxiliary positioning piles 2 are respectively arranged at four corners of the concrete slab 4 to be cut. In this embodiment, the number of the auxiliary positioning piles 2 is four, and indeed, in other embodiments, the number of the auxiliary positioning piles 2 may be other, which is determined according to actual situations and is not specifically limited herein.
The auxiliary positioning pile 2 is provided with a pulley 31, and the pulley 31 is arranged close to the concrete slab 4 to be cut. After the auxiliary positioning pile 2 is installed, the distance between the pulley 31 and the concrete slab 4 to be cut in the height direction is more than or equal to 80 cm. Specifically, the number of the pulleys 31 arranged on each auxiliary positioning pile 2 is determined according to the cutting direction of the concrete slab 4 to be cut; at least two auxiliary positioning piles 2 on one side are provided with at least two groups of pulleys 31, and at least two auxiliary positioning piles 2 on the other side are provided with at least one group of pulleys 31; wherein one of the at least two sets of pulleys 31 is located below the concrete slab 4 to be cut. As mentioned above, in the present embodiment, two sets of pulleys 31 are disposed on the two auxiliary positioning piles 2 located on one side of the concrete slab 4 to be cut in the length direction of the concrete slab 4 to be cut, and the two sets of pulleys 31 are respectively located above and below the concrete slab 4 to be cut. A set of pulleys 31 is arranged on the two auxiliary spuds 2 on the other side of the concrete slab 4 to be cut, and the pulleys 31 can be positioned above or below the concrete slab 4 to be cut.
A rope saw chain is mounted on the pulley 31 to form a rope saw 3, cutting the concrete slab 4 to be cut.
The method further comprises the following steps:
before the concrete slab 4 to be cut is cut, washing sludge on and around the concrete slab 4 to be cut and clay on the auxiliary positioning pile 2 by using a high-pressure water gun;
the pulley 31 on the auxiliary spud 2 is checked for damage, and if damaged, the pulley 31 is removed and re-welded underwater to ensure that the pulley 31 can work properly.
In summary, the following steps: through installing auxiliary positioning pile 2 around waiting to cut concrete slab 4, and be provided with pulley 31 on auxiliary positioning pile 2, install rope saw chain in order to form rope saw machine 3 on pulley 31 to treating the cutting subassembly and carrying out the cutting action, 3 cutting of rope saw machine just can not treat the periphery of cutting concrete slab 4 and cause destruction fast, convenient and fast has improved work efficiency, has also reduced working cost.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A method of cutting an underwater reinforced concrete panel, the method comprising:
determining the position of a concrete slab to be cut according to a cofferdam drawing so as to determine the installation position of the auxiliary positioning pile;
measuring and determining the actual installation position of the auxiliary positioning pile in the cofferdam by using a total station, and arranging a mark at the actual installation position;
placing a drilling machine on a buoyancy tank, and drilling underwater by the drilling machine to form a mounting hole after the buoyancy tank is moved to an actual mounting position provided with an identifier;
butting the auxiliary positioning pile with the mounting hole to fix the auxiliary positioning pile, wherein a pulley is arranged on the auxiliary positioning pile and is arranged close to the concrete slab to be cut;
installing a wire saw chain on the pulley to form a wire saw machine to cut the concrete slab to be cut.
2. The underwater reinforced concrete panel cutting method of claim 1, wherein the 'drilling machine performs underwater drilling to form the installation hole' is embodied as:
anchoring the buoyancy tank to position the buoyancy tank after the buoyancy tank reaches an actual installation position provided with an identification;
the drilling machine is provided with a drill rod connected with a drill bit, so that the center of the drill rod and the mark are positioned in the same vertical plane, and a total station is adopted for checking to finish centering;
the drill rod is driven under water until it contacts the slab to be cut and the drill is activated to drill the hole until the drill bit passes through the slab to be cut to form a mounting hole.
3. A method of cutting an underwater reinforced concrete panel as claimed in claim 2 wherein the method further comprises:
after the installation hole is formed, cleaning fragments of the concrete slab formed by drilling out of the installation hole.
4. The underwater reinforced concrete slab cutting method as set forth in claim 1, wherein the "butting the auxiliary spud against the mounting hole to fix the auxiliary spud" is embodied as:
inserting and driving actions are carried out through a manipulator so that the auxiliary positioning piles are fixedly connected with the mounting holes in an abutting mode;
after the auxiliary positioning pile is installed, the distance between the pulley and the concrete slab to be cut in the height direction is more than or equal to 80 cm.
5. A method of cutting underwater reinforced concrete panels as claimed in claim 4 wherein said auxiliary spuds are provided in at least four and at least four of said auxiliary spuds are provided at each of the four corners of the panel to be cut.
6. The underwater reinforced concrete panel cutting method of claim 5, further comprising:
determining the number of pulleys arranged on each auxiliary positioning pile according to the cutting direction of the concrete slab to be cut;
at least two groups of pulleys are arranged on at least two auxiliary positioning piles on one side, and at least one group of pulleys is arranged on at least two auxiliary positioning piles on the other side; wherein one of the at least two sets of pulleys is located below the concrete slab to be cut.
7. The underwater reinforced concrete slab cutting method of claim 1, wherein the "determining the installation position of the auxiliary spud" is embodied as:
determining the position of the auxiliary positioning pile according to the size of the concrete slab to be cut, wherein the position of the auxiliary positioning pile is outwards deviated from the periphery of the concrete slab to be cut.
8. A method of cutting an underwater reinforced concrete panel as claimed in claim 7 wherein the offset distance is greater than or equal to 0.5 m.
9. A method of cutting an underwater reinforced concrete panel according to claim 1 further comprising:
before the concrete slab to be cut is cut, washing sludge on and around the concrete slab to be cut and clay on the auxiliary positioning pile by using a high-pressure water gun;
and checking whether the pulley on the auxiliary positioning pile is damaged or not to ensure that the pulley can work normally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010421105.XA CN111546506A (en) | 2020-05-18 | 2020-05-18 | Underwater reinforced concrete slab cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010421105.XA CN111546506A (en) | 2020-05-18 | 2020-05-18 | Underwater reinforced concrete slab cutting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111546506A true CN111546506A (en) | 2020-08-18 |
Family
ID=71997180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010421105.XA Pending CN111546506A (en) | 2020-05-18 | 2020-05-18 | Underwater reinforced concrete slab cutting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111546506A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1099003A2 (en) * | 1983-04-07 | 1984-06-23 | Специальное Конструкторское Бюро При Институте Математики И Механики Ан Азсср | Apparatus for cutting-off tubular piles |
| CN201128032Y (en) * | 2007-12-24 | 2008-10-08 | 中国海洋石油总公司 | Tension device of underwater diamond rope saw |
| CN101300117A (en) * | 2005-08-31 | 2008-11-05 | 卡拉工业公司 | Method and apparatus for pelletizing biomaterial composites |
| CN102762796A (en) * | 2009-09-14 | 2012-10-31 | 叶片离岸服务有限公司 | Method, apparatus and system for attaching an anchor member to a floor of a body of water |
| CN109610441A (en) * | 2018-11-23 | 2019-04-12 | 中天建设集团有限公司 | It is a kind of to use hydraulic vertical adjustment frame inverse method one-column one-pile construction method |
| CN111014819A (en) * | 2019-11-27 | 2020-04-17 | 中铁隆工程集团有限公司 | Reinforced concrete bottom plate cutting method based on wire saw process |
-
2020
- 2020-05-18 CN CN202010421105.XA patent/CN111546506A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1099003A2 (en) * | 1983-04-07 | 1984-06-23 | Специальное Конструкторское Бюро При Институте Математики И Механики Ан Азсср | Apparatus for cutting-off tubular piles |
| CN101300117A (en) * | 2005-08-31 | 2008-11-05 | 卡拉工业公司 | Method and apparatus for pelletizing biomaterial composites |
| CN201128032Y (en) * | 2007-12-24 | 2008-10-08 | 中国海洋石油总公司 | Tension device of underwater diamond rope saw |
| CN102762796A (en) * | 2009-09-14 | 2012-10-31 | 叶片离岸服务有限公司 | Method, apparatus and system for attaching an anchor member to a floor of a body of water |
| CN109610441A (en) * | 2018-11-23 | 2019-04-12 | 中天建设集团有限公司 | It is a kind of to use hydraulic vertical adjustment frame inverse method one-column one-pile construction method |
| CN111014819A (en) * | 2019-11-27 | 2020-04-17 | 中铁隆工程集团有限公司 | Reinforced concrete bottom plate cutting method based on wire saw process |
Non-Patent Citations (5)
| Title |
|---|
| 唐岱新: "《土木工程机构检测鉴定与加固改造新进展及工程实例》", 31 August 2006, 中国建材工业出版社 * |
| 廖原时: "《金刚石串珠锯在饰面石材生产中的应用技术》", 31 January 2009, 冶金工业出版社 * |
| 焦胜军: "《高速铁路桥梁施工与维护 上》", 28 February 2011, 西南交通大学出版社 * |
| 王峰: "《水铁路客运专线路基工程质量检查与控制》", 30 November 2008, 西南交通大学出版社 * |
| 贾金生: "《水电可持续发展与碾压混凝土坝建设的技术进展》", 30 September 2015, 黄河水利出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109914399B (en) | Environment-friendly pile foundation construction method | |
| CN110820742A (en) | Construction method for breaking underwater cast-in-place pile head | |
| CN111546506A (en) | Underwater reinforced concrete slab cutting method | |
| CN111593733A (en) | Pile-first interpolation type jacket grouting plugging system | |
| CN212612487U (en) | Pile-first interpolation type jacket grouting plugging system | |
| CN111827130A (en) | Construction method of water bridge pile foundation and bearing platform without trestle | |
| CN218643361U (en) | Drill bit group for pile cutter | |
| CN213926276U (en) | Deep foundation pit grouting device | |
| CN109853532B (en) | Ultrasonic disturbance wall-protection slurry sediment cleaning device and construction method | |
| CN113684821A (en) | Core pile preparation method of offshore implantable rock-socketed pile | |
| CN113684822B (en) | Construction method of offshore implantable rock-socketed pile | |
| KR200292724Y1 (en) | Apparatus for repairing the cracked portion of underwater concrete structures | |
| CN113502809B (en) | Device for rapidly chiseling pile foundation pile head | |
| CN117702744A (en) | Pile head cutting construction method for bored pile | |
| CN217378751U (en) | Construction equipment is restoreed to bottom surface of pier panel | |
| CN212272031U (en) | Underwater drilling casing device | |
| KR100452623B1 (en) | Method for repairing the cracked portion of underwater concrete structures | |
| CN219992492U (en) | Device for preventing bulge collapse of external corner during grooving of underground diaphragm wall | |
| CN220687359U (en) | Buried steel plate water stop fixing device in tunnel construction joint | |
| CN114059535B (en) | Construction method for sinking overweight steel casing in deep water area based on buoyancy effect | |
| CN218562325U (en) | Steel pile casing device is collected from taking mud to aquatic drilling bored concrete pile | |
| CN211897874U (en) | Centipede type integral trestle and operation platform | |
| CN218521809U (en) | Deep water high strength bare rock's fluting construction system | |
| CN212129264U (en) | Uplift pile for zero-friction static load detection | |
| CN218970086U (en) | A row of stifled comprehensive treatment system that is used for anti floating of basement structure to stop oozing |
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: 20200818 |