CN110566230A - externally-hung channel system and construction method thereof - Google Patents
externally-hung channel system and construction method thereof Download PDFInfo
- Publication number
- CN110566230A CN110566230A CN201910903730.5A CN201910903730A CN110566230A CN 110566230 A CN110566230 A CN 110566230A CN 201910903730 A CN201910903730 A CN 201910903730A CN 110566230 A CN110566230 A CN 110566230A
- Authority
- CN
- China
- Prior art keywords
- channel steel
- externally
- hung
- steel
- channel
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 91
- 239000010959 steel Substances 0.000 claims abstract description 91
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 16
- 239000010935 stainless steel Substances 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 11
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000009661 fatigue test Methods 0.000 claims description 2
- 238000005098 hot rolling Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008092 positive effect Effects 0.000 abstract description 2
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses an externally-hung channel system and a construction method thereof. Compared with the prior art, the invention has the following positive effects: 1. simple structure, installation, dismantlement convenience: the embedded sleeve and the external hanging channel steel are connected by adopting the socket head cap screws, and the installation and the disassembly are simple, convenient and quick. 2. The service life is long: the pre-buried sleeve is made of stainless steel, and after pre-buried, the anti-corrosion effect is good, and the service life is long. 3. The replacement is convenient: after the channel steel is damaged, the damaged channel steel is taken down only by screwing down the hexagon socket head cap screws in the damaged section, and the intact channel steel is placed into the original cement tank, and the screws are screwed down. The kidney-shaped hole on the channel steel ensures that the channel steel can be easily and accurately installed. 4. Saving the channel: the externally hung channel steel can be installed in sections according to the position requirement, and the construction is flexible.
Description
Technical Field
The invention relates to an externally-hung channel system and a construction method thereof.
Background
The pre-buried channel that fields such as present high-speed railway, subway, utility tunnel used all is with channel and stock welding or after riveting, pre-buried in cement. The channel cannot be repaired if it fails or is damaged during use.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an externally-hung channel system and a construction method thereof, which effectively solve the following problems:
1. The problem that the replacement is difficult after the channel is invalid is solved;
2. The problem of inaccurate installation and positioning of the externally hung channel steel is solved;
3. The large end of the stainless steel embedded sleeve is conical, so that the stress is good;
4. The big end of the stainless steel embedded sleeve is provided with four ribs, so that the stress is good, and the rotation prevention effect in concrete is realized.
the technical scheme adopted by the invention is as follows: the utility model provides an external slot way system, is including setting up the embedded sleeve in section of jurisdiction or cast in situ concrete to and through the external channel-section steel of hexagon socket head cap screw and embedded sleeve connection.
furthermore, the pre-buried sleeve is made of stainless steel, and the large end of the pre-buried sleeve is conical and is installed inwards.
Further, a reinforcing rib is provided outside the large end.
Furthermore, an externally-hung channel steel mounting groove is formed in the outer surface of the duct piece or the cast-in-place concrete, and the small end of the embedded sleeve is flush with the groove bottom of the externally-hung channel steel mounting groove.
Furthermore, a waist-shaped hole for the inner hexagon screw to pass through is formed in the back of the externally-hung channel steel.
furthermore, a gasket is arranged between the external hanging channel steel and the inner hexagon screw.
Furthermore, the waist-shaped hole in the externally hung channel steel is aligned with the embedded sleeve.
further, the externally hung channel steel is manufactured in a segmented mode.
The invention also provides a construction method of the externally hung channel system, which comprises the following steps:
(1) When a duct piece is produced or a tunnel is poured, the embedded sleeve is firmly installed on a corresponding duct piece die or a steel die so as to be embedded in the duct piece or cast-in-place concrete, and an externally-hung channel steel installation groove is prefabricated on the outer surface of the duct piece or the cast-in-place concrete, so that the small end of the embedded sleeve is flush with the groove bottom of the externally-hung channel steel installation groove;
(2) before tunnel facilities are installed, the externally-hung channel steel is placed in a mounting groove formed by duct pieces or cast-in-place concrete, a gasket is placed after a kidney-shaped hole in the externally-hung channel steel is aligned with the embedded sleeve, and then an inner hexagon screw is screwed in to enable the externally-hung channel steel to be tightly connected with the embedded sleeve;
(3) When the external channel steel is damaged and needs to be replaced, the internal hexagonal screw at the damaged section is screwed out, the damaged external channel steel is taken out, the intact external channel steel is placed into the duct piece or the mounting groove of the cast-in-place concrete, the gasket is placed after the waist-shaped hole in the external channel steel is aligned with the embedded sleeve, and the internal hexagonal screw is screwed in, so that the replacement of the damaged external channel steel is completed.
Compared with the prior art, the invention has the following positive effects:
1. simple structure, installation, dismantlement convenience: the embedded sleeve and the external hanging channel steel are connected by adopting the socket head cap screws, and the installation and the disassembly are simple, convenient and quick.
2. The service life is long, the pre-buried sleeve is made of stainless steel, the anti-corrosion effect is good after pre-burying, and the service life is long.
3. the replacement is convenient: after the channel steel is damaged, the damaged channel steel is taken down only by screwing down the hexagon socket head cap screws in the damaged section, and the intact channel steel is placed into the original cement tank, and the screws are screwed down. The kidney-shaped hole on the channel steel ensures that the channel steel can be easily and accurately installed.
4. saving the channel: the externally hung channel steel can be installed in sections according to the position requirement, and the construction is flexible.
drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a front view of an externally hung channel system of the present invention;
3 FIG. 3 2 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a top view of the channel bar;
Fig. 5 is a side view of the channel clip;
FIG. 6 is a front view of the pre-buried sleeve;
fig. 7 is a cross-sectional view of the fastener driving sleeve.
Detailed Description
An externally hanging channel system, as shown in figures 1 to 3, comprising: segment or cast in situ concrete 1, pre-buried sleeve 2, external channel-section steel 3, gasket 4, socket head cap screw 5 etc. wherein:
The outer surface of the duct piece or the cast-in-place concrete 1 is provided with an external hanging channel steel mounting groove, the duct piece or the cast-in-place concrete 1 is internally provided with an embedded sleeve 2, and the small end of the embedded sleeve 2 is flush with the groove bottom of the external hanging channel steel mounting groove.
the structure of the externally-hung channel steel 3 is as shown in fig. 4 and 5, a waist-shaped hole for an inner hexagon screw to pass through is formed in the back of the externally-hung channel steel 3, a gasket is arranged between the externally-hung channel steel 3 and the inner hexagon screw 5, so that the externally-hung channel steel 3 is connected and fastened with the embedded sleeve 2, and the externally-hung channel steel 3 is fixed in an externally-hung channel steel mounting groove of a duct piece or cast-in-place concrete 1.
The embedded sleeve 2 can be made of stainless steel or other strong wear-resistant corrosion-resistant materials, the structure of the embedded sleeve is shown in fig. 6 and 7, the large end of the embedded sleeve is conical, and 2-6 reinforcing ribs are arranged outside the large end.
the working principle of the invention is as follows:
(1) When section of jurisdiction production or tunnel are pour, with stainless steel embedded sleeve 2 firm in installation on section of jurisdiction mould or the steel mould that corresponds, with stainless steel embedded sleeve 2 pre-buried in section of jurisdiction or cast in situ concrete 1.
(2) Before tunnel facilities are installed, the externally-hung channel steel 3 is placed in a duct piece or a groove formed by cast-in-place concrete 1, a waist-shaped hole in the externally-hung channel steel 3 is aligned with the pre-buried stainless steel pre-buried sleeve 2, and the externally-hung channel steel 3 is connected and fastened with the stainless steel pre-buried sleeve 2 by using an inner hexagonal screw 5 and a gasket 4. Wherein, adopt threaded connection between socket cap screw 5 and the pre-buried sleeve of stainless steel 2. When the external hanging channel steel 3 is damaged, the inner hexagon screws 5 in the external hanging channel steel 3 are screwed out, the external hanging channel steel 3 is taken out and damaged, the intact external hanging channel steel 3 is placed into the duct piece or the groove of the cast-in-place concrete 1, each waist-shaped hole is aligned with the stainless steel embedded sleeve 2, the gasket 4 is placed, and the inner hexagon screws 5 are screwed in, so that the replacement and the disassembly and the assembly of the damaged external hanging channel steel 3 are completed.
3) the technical requirements are as follows:
(1) The comprehensive performance of the externally hung channel steel is not lower than Q355B, and the material of the embedded sleeve is not lower than 06Cr19Ni 10.
(2) the channel steel raw material of the externally hung channel steel needs to be formed by one-time hot rolling.
(3) The externally hung channel system is not allowed to be in contact with a reinforcement cage in concrete, so that electrochemical corrosion is avoided.
(4) The grade of the socket head cap screws for connecting the externally hung channel steel with the stainless steel embedded sleeve is 12.9.
(5) the arc precision of the externally hung channel steel is that the gap between the notch surface and the standard arc gauge is less than or equal to 2 mm.
(6) the performance grade of the stainless steel embedded sleeve is not lower than the requirement of 70 grades in GB/T3098.6-2014.
(7) The external hanging channel system is subjected to a pulling force FL vertical to the notch surface of the external hanging channel steel, a shearing force FJ vertical to the axis of the external hanging channel steel and a shearing force FH parallel to the axis of the external hanging channel steel, and the working loads in the three directions are not allowed to be lower than 10 kN.
(8) Under the working load, the deflection of any installation position of the channel steel is less than or equal to 1 mm; under the working load of 1.5 times, all parts of the system do not have plastic deformation (yield); under 3 times of working load, functional failure damage does not occur to each part of the system.
(9) After 50 ten thousand times of fatigue tests are carried out on the externally-hung channel system under the sine wave with the frequency of 3Hz and the amplitude of FL +/-30% FL, the system is subjected to a tensile failure test, and the failure load is not less than 28.5 kN.
(10) And (3) carrying out a fire resistance test according to GB/T9978.1-2008 under the tensile load of 3kN, wherein the system does not lose efficacy after 90 min.
(11) And (3) carrying out anticorrosion treatment on the externally hung channel steel, wherein the anticorrosion meets the requirement that the corrosion resistance is not lower than grade 8 in GB/T6461 after a 1200h neutral salt spray test (NSS) or a 150h copper accelerated acetate spray test (CASS).
Claims (10)
1. An externally hanging channel system, characterized by: the embedded steel pipe comprises an embedded sleeve arranged in a pipe piece or cast-in-place concrete and an externally hung channel steel connected with the embedded sleeve through an inner hexagon screw.
2. A plug channel system according to claim 1, wherein: the embedded sleeve is made of stainless steel, and the large end of the embedded sleeve is conical and is installed inwards.
3. a plug channel system according to claim 2, wherein: and a reinforcing rib is arranged outside the large end.
4. A plug channel system according to claim 2, wherein: and an externally-hung channel steel mounting groove is formed in the outer surface of the duct piece or the cast-in-place concrete, and the small end of the embedded sleeve is flush with the groove bottom of the externally-hung channel steel mounting groove.
5. A plug channel system according to claim 1, wherein: and a waist-shaped hole for the inner hexagon screw to pass through is formed in the back of the externally hung channel steel.
6. a plug channel system according to claim 5, wherein: and a gasket is arranged between the externally hung channel steel and the inner hexagon screw.
7. a plug channel system according to claim 5, wherein: and the waist-shaped hole on the externally hung channel steel is aligned with the embedded sleeve.
8. A plug channel system according to claim 1, wherein: and manufacturing the externally hung channel steel in sections.
9. A construction method of an externally hung channel system is characterized by comprising the following steps: the method comprises the following steps:
(1) when a duct piece is produced or a tunnel is poured, the embedded sleeve is firmly installed on a corresponding duct piece die or a steel die so as to be embedded in the duct piece or cast-in-place concrete, and an externally-hung channel steel installation groove is prefabricated on the outer surface of the duct piece or the cast-in-place concrete, so that the small end of the embedded sleeve is flush with the groove bottom of the externally-hung channel steel installation groove;
(2) Before tunnel facilities are installed, the externally-hung channel steel is placed in a mounting groove formed by duct pieces or cast-in-place concrete, a gasket is placed after a kidney-shaped hole in the externally-hung channel steel is aligned with the embedded sleeve, and then an inner hexagon screw is screwed in to enable the externally-hung channel steel to be tightly connected with the embedded sleeve;
(3) when the external channel steel is damaged and needs to be replaced, the internal hexagonal screw at the damaged section is screwed out, the damaged external channel steel is taken out, the intact external channel steel is placed into the duct piece or the mounting groove of the cast-in-place concrete, the gasket is placed after the waist-shaped hole in the external channel steel is aligned with the embedded sleeve, and the internal hexagonal screw is screwed in, so that the replacement of the damaged external channel steel is completed.
10. The construction method of an externally hanging channel system according to claim 9, wherein:
(1) The comprehensive performance of the externally hung channel steel is not lower than Q355B, and the material of the embedded sleeve is not lower than 06Cr19Ni 10;
(2) the channel steel raw material of the externally hung channel steel is formed by one-time hot rolling;
(3) Ensuring that the external hanging channel system is not contacted with a reinforcement cage in concrete;
(4) the grade of the socket head cap screws for connecting the externally hung channel steel with the stainless steel embedded sleeve is 12.9;
(5) The arc precision of the externally hung channel steel is that the gap between the notch surface and the standard arc gauge is less than or equal to 2 mm;
(6) the performance grade of the embedded sleeve is not lower than the requirement of 70 grades in GB/T3098.6-2014;
(7) the external hanging channel system is subjected to a pulling force FL vertical to the notch surface of the external hanging channel steel, a shearing force FJ vertical to the axis of the external hanging channel steel and a shearing force FH parallel to the axis of the external hanging channel steel, and the working loads in three directions are not lower than 10 kN;
(8) Under the working load, the deflection of any mounting position of the externally hung channel steel is less than or equal to 1 mm; under the working load of 1.5 times, all parts of the system do not have plastic deformation at any mounting point of the externally hung channel steel; under 3 times of working load, functional failure damage does not occur to each part of the system;
(9) after 50 ten thousand times of fatigue tests are carried out on the externally-hung channel system under the sine wave with the frequency of 3Hz and the amplitude of FL +/-30 percent FL, the system carries out a tensile failure test, and the failure load is not less than 28.5 kN;
(10) carrying out a fire resistance test according to GB/T9978.1-2008 under the tensile load of 3kN, wherein the system does not lose efficacy after 90 min;
(11) The corrosion resistance of the externally hung channel steel meets the requirement that the corrosion resistance is not lower than grade 8 in GB/T6461 after a 1200h neutral salt spray test or a 150h copper accelerated acetate spray test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910903730.5A CN110566230A (en) | 2019-09-24 | 2019-09-24 | externally-hung channel system and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910903730.5A CN110566230A (en) | 2019-09-24 | 2019-09-24 | externally-hung channel system and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110566230A true CN110566230A (en) | 2019-12-13 |
Family
ID=68782011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910903730.5A Pending CN110566230A (en) | 2019-09-24 | 2019-09-24 | externally-hung channel system and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110566230A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282789A (en) * | 2020-11-11 | 2021-01-29 | 中铁隆昌铁路器材有限公司 | Segment mold for embedded type external hanging channel system and use method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259332A (en) * | 1994-03-22 | 1995-10-09 | Takenaka Komuten Co Ltd | Method of driving insert for separator in semi-processed good precast concrete slab |
| KR20140021288A (en) * | 2012-08-09 | 2014-02-20 | 동아이엔지(주) | Sleeve lib joint usable with precast concrete, manufacturing method for precast concrete having the same, and installing method for precast concreat structure having the same |
| CN108590757A (en) * | 2018-06-20 | 2018-09-28 | 彭健 | A kind of victory assembling device and its installation method |
| CN208202157U (en) * | 2018-04-28 | 2018-12-07 | 中铁隆昌铁路器材有限公司 | A kind of detachable conduit of built-in type |
| CN109083285A (en) * | 2018-10-09 | 2018-12-25 | 中铁隆昌铁路器材有限公司 | Conduit installation embedded sleeve barrel and conduit localization method |
| CN211448695U (en) * | 2019-09-24 | 2020-09-08 | 中铁隆昌铁路器材有限公司 | Externally hung channel system |
-
2019
- 2019-09-24 CN CN201910903730.5A patent/CN110566230A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259332A (en) * | 1994-03-22 | 1995-10-09 | Takenaka Komuten Co Ltd | Method of driving insert for separator in semi-processed good precast concrete slab |
| KR20140021288A (en) * | 2012-08-09 | 2014-02-20 | 동아이엔지(주) | Sleeve lib joint usable with precast concrete, manufacturing method for precast concrete having the same, and installing method for precast concreat structure having the same |
| CN208202157U (en) * | 2018-04-28 | 2018-12-07 | 中铁隆昌铁路器材有限公司 | A kind of detachable conduit of built-in type |
| CN108590757A (en) * | 2018-06-20 | 2018-09-28 | 彭健 | A kind of victory assembling device and its installation method |
| CN109083285A (en) * | 2018-10-09 | 2018-12-25 | 中铁隆昌铁路器材有限公司 | Conduit installation embedded sleeve barrel and conduit localization method |
| CN211448695U (en) * | 2019-09-24 | 2020-09-08 | 中铁隆昌铁路器材有限公司 | Externally hung channel system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282789A (en) * | 2020-11-11 | 2021-01-29 | 中铁隆昌铁路器材有限公司 | Segment mold for embedded type external hanging channel system and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211448695U (en) | Externally hung channel system | |
| CN211114418U (en) | Main material damage-free detachable steel-concrete combined beam | |
| CN109629424B (en) | Cantilever support and construction method of concrete flange of steel-concrete combined bridge using cantilever support | |
| CN110107312B (en) | Shield segment and shield segment assembling structure | |
| CN110566230A (en) | externally-hung channel system and construction method thereof | |
| CN107642170A (en) | The friction-type shear connector and its construction method of shearing resistance not resistance to plucking | |
| CN107514097B (en) | Prestressed corrugated pipe assembly and installation and construction method thereof | |
| CN107642031B (en) | Friction-type peg shear connector and its construction method | |
| CN107419916B (en) | Internal moment reinforcing and correcting device for beam structure | |
| CN106812252A (en) | The anti-skidding prestressing force pull end anchorage of one kind sealing | |
| CN216947804U (en) | Connecting piece for steel-concrete composite structure | |
| CN113417371B (en) | Detachable cushion block reinforced high-strength bolt shear connector | |
| CN205171834U (en) | Sealed anti -skidding prestressing force stretch -draw end ground tackle | |
| CN201713940U (en) | Steel column base structure | |
| CN210482007U (en) | Slab band device at bottom of bridge hollow slab | |
| CN210420845U (en) | Connecting piece of prefabricated bridge deck auxiliary facilities | |
| CN210117931U (en) | Multifunctional integrated mountain-shaped clamp | |
| CN219060868U (en) | Bare concrete wall template reinforced structure | |
| CN219137374U (en) | Prefabricated assembled composite beam | |
| CN204825648U (en) | Solid device of stranded finished product cable formula anchorage prestressed anchorage | |
| CN218176611U (en) | Wall connecting piece structure | |
| CN211500561U (en) | Pressure test joint for Christmas tree | |
| CN210916980U (en) | Assembled cable-girder anchoring structure | |
| CN219032937U (en) | Lower cover arch reinforcement hanging mould component of arch bridge | |
| CN219363805U (en) | Ground screw with sacrificial anode |
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 |