CN219826849U - Mine tunnel secondary lining pouring plug template - Google Patents
Mine tunnel secondary lining pouring plug template Download PDFInfo
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- CN219826849U CN219826849U CN202321018418.6U CN202321018418U CN219826849U CN 219826849 U CN219826849 U CN 219826849U CN 202321018418 U CN202321018418 U CN 202321018418U CN 219826849 U CN219826849 U CN 219826849U
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- reinforcing rib
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 43
- 238000009434 installation Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 238000005065 mining Methods 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 22
- 238000007789 sealing Methods 0.000 abstract 8
- 230000008569 process Effects 0.000 description 8
- 239000011435 rock Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model discloses a mine tunnel secondary lining pouring plug template, which comprises the following steps: the first sealing template and the second sealing template are integrally provided with a first flange for fixing the water stop in the length direction of the top of the first sealing template, and a second flange for fixing the water stop is integrally provided with the bottom of the second sealing template in the length direction; a plurality of first fixing pieces are arranged in the length direction of the first flange, and a plurality of second fixing pieces are arranged in the length direction of the second flange; a plurality of rows of first lug plates are arranged in parallel in the middle of the back side of the first plugging template; a plurality of rows of second ear plates are arranged in parallel in the middle of the back side of the second plugging template; the positions of the second ear plates in each row correspond to the positions of the first ear plates in each row, and the first ear plates in each row are connected with the second ear plates in each row through stay bars; according to the utility model, the first sealing template and the second sealing template are used for clamping and fixing the water stop belt, the end part of the trolley is sealed, and the first sealing template and the second sealing template are fixed and supported by the stay bars, so that the construction quality and the construction efficiency of the second lining are improved.
Description
Technical Field
The utility model relates to the technical field of tunnel construction, in particular to a mine tunnel secondary lining pouring plug template.
Background
The tunnel construction process generally includes: digging earth and stones in the stratum to form a tunnel conforming to the designed outline size; performing necessary primary support and building a final permanent lining to control surrounding rock deformation of the tunnel, so as to ensure long-term safe use of the tunnel; the construction method generally comprises a mining method, a new Otto method, a shield method and the like. The secondary lining construction of the mine method generally adopts a lining trolley formwork, the lining trolley and surrounding rock reinforced at the initial stage form a concrete pouring space, the end part of the lining trolley is required to be plugged through an independent plugging formwork, and the plugging effect can influence the secondary lining construction quality.
In the secondary lining construction process, a water stop belt is usually required to be arranged at the lining deformation joint so as to prevent water leakage at the joint and influence the secondary lining construction quality. In the existing plugging mode, a plurality of mutually independent wood forms are generally used for clamping the water stop belt and plugging the end part of the lining trolley, and the water stop belt cannot be stably fixed in the construction mode of plugging the end part of the lining trolley by the wood forms, so that the water stop effect and the secondary lining construction quality can be influenced due to unstable water stop belt fixation; moreover, as the wood templates have more joints, the slurry leakage phenomenon is easy to occur in the concrete pouring process, and the basal plane is rough.
The rigid template adopting the combined form can fix the water stop, but the assembling, reinforcing and disassembling processes of the rigid template need a great deal of man-hours; the connection between the combined rigid templates is unstable, and under the condition of no supporting device, the templates are easy to float or deform in the concrete pouring process, so that the concrete pouring quality is influenced. In addition, the cross section shape of the tunnel by the mine method is usually an elliptic cross section, gradually deformed cross section and the like, the problem that the size of the combined rigid template is not matched with the lining thickness can occur due to the irregular cross section shape, the combined rigid template cannot completely block the end part of the lining trolley at certain parts of the end part of the lining trolley, and the rigid template with the corresponding size can be manufactured according to the surrounding rock deformation condition, so that the manufacturing difficulty of the rigid template can be increased, the supporting difficulty of the template can be increased, and the construction efficiency of two linings can be influenced.
Disclosure of Invention
At least one of the purposes of the utility model is to provide a mine tunnel secondary lining pouring plug template aiming at solving the problems existing in the prior art, the end part of a lining trolley is plugged and clamped and fixed by a first plugging template and a second plugging template, and a middle buried water stop is connected and supported by a supporting rod, so that the concrete pouring quality can be improved, and the secondary lining construction quality and the construction efficiency can be improved.
In order to achieve the above object, the present utility model adopts a technical scheme including the following aspects.
A mine tunnel secondary lining pouring plug template, comprising: the water stop device comprises a first plugging template and a second plugging template, wherein a first flange for fixing a water stop is integrally arranged in the length direction of the top of the first plugging template, a second flange for fixing the water stop is integrally arranged in the length direction of the bottom of the second plugging template, and the width of the second flange is matched with the width of the first flange;
a plurality of first fixing pieces are arranged in the length direction of the first flange, a plurality of second fixing pieces are arranged in the length direction of the second flange, and the first fixing pieces and the second fixing pieces are detachably connected;
a plurality of rows of first lug plates are arranged in parallel in the middle of the back side of the first plugging template, and each row of first lug plates is arranged along the height direction of the first plugging template; a plurality of rows of second ear plates are arranged in parallel in the middle of the back side of the second plugging template, and each row of second ear plates is arranged along the height direction of the second plugging template; the positions of the second ear plates in each row correspond to the positions of the first ear plates in each row, and the first ear plates in each row are connected with the second ear plates in each row through supporting rods.
Preferably, the first fixing piece is L-shaped, a first vertical edge of the first fixing piece is connected with the top of the first flange, a second vertical edge of the first fixing piece is separated from the edge of the first flange by a certain distance, and a first through hole is formed in the second vertical edge of the first fixing piece; the second fixing piece is L-shaped, a first vertical edge of the second fixing piece is connected with the bottom of the second flange, the second vertical edge is separated from the edge of the second flange by a certain distance, a second through hole is formed in the second vertical edge, and the second vertical edge of the first fixing piece is detachably connected with the second vertical edge of the second fixing piece.
Preferably, two groups of first reinforcing rib plates are arranged on the back side of the first plugging template, the two groups of first reinforcing rib plates are respectively arranged close to two ends of the first plugging template, each group of first reinforcing rib plates comprises a plurality of first reinforcing rib plates, and each first reinforcing rib plate is parallel to each other; the back side of the second plugging template is provided with two groups of second reinforcing rib plates, the two groups of second reinforcing rib plates are respectively arranged close to two ends of the second plugging template, each group of second reinforcing rib plates comprises a plurality of second reinforcing rib plates, and each second reinforcing rib plate is parallel to each other.
Preferably, the first vertical edge of the first fixing piece is attached to the surface of the first reinforcing rib plate, and the first vertical edge of the second fixing piece is attached to the surface of the second reinforcing rib plate.
Preferably, a plurality of first connecting pieces are respectively arranged at the two ends of the back side of the first plugging template along the height direction, and connecting holes are formed in the first connecting pieces; and a plurality of second connecting pieces are respectively arranged at the two ends of the back side of the second plugging template along the height direction, and connecting holes are formed in the second connecting pieces.
Preferably, the first shutoff template bottom is connected through the third connecting piece can be dismantled with the platform truck template, platform truck template back side is provided with bearing structure, bearing structure includes first support, second support and third support, and the first end and the platform truck template of first support are connected, and first support second end top and second support are connected, and the third supports the slope setting, and its first end is connected on the web that the second supported, and the second end is connected with the vaulting pole top.
Preferably, the first ear plate is provided with a first ear hole, the second ear plate is provided with a second ear hole, the size of the first ear hole and the size of the second ear hole are matched with the size of the supporting rod, and the supporting rod penetrates through the second ear hole and the first ear hole, so that the first plugging template is fixedly connected with the second plugging template.
Preferably, the stay bar and the third support are steel pipes, and the first support and the second support are I-steel.
Further, the plugging device also comprises a third plugging template, wherein the bottom of the third plugging template is provided with an installation groove matched with the top of the second plugging template, the installation groove is arranged along the length direction of the third plugging template in a through length way, and the top of the second plugging template is embedded into the installation groove; the third plugging template is supported by a wedge block, a first end of the wedge block is connected to the back side of the third plugging template, and a second end of the wedge block is connected to the stay bar.
Further, the first plugging template and the second plugging template are steel dies, the third plugging template is a wood die, and the wedge block is a wood wedge.
In summary, due to the adoption of the technical scheme, the utility model has at least the following beneficial effects:
through setting up first shutoff template and second shutoff template, first shutoff template and second shutoff template are supported fixedly through the vaulting pole, can improve two lining construction quality and efficiency of construction.
Through setting up the third shutoff template, can enlarge the application range of end cap template, make first shutoff template, second shutoff template and third shutoff template be applied to the occasion of mine method tunnel different sections, reduce the template and install and remove the degree of difficulty, improve the efficiency of construction. Through setting up strutting arrangement, strutting arrangement steady rest third shutoff template can improve the installation quality and the two lining construction quality of third shutoff template. The supporting device is flexible and detachable, the template supporting structure can be simplified, and the template assembling and disassembling efficiency is further improved.
Drawings
Fig. 1 is an elevation view of a mining tunnel secondary liner casting plug template in accordance with an exemplary embodiment of the present utility model.
Fig. 2 is a side view of a mining tunnel secondary liner casting plug template according to an exemplary embodiment of the present utility model.
The marks in the figure are as follows: 1-first plugging template, 11-first flange, 12-first fixing piece, 13-first reinforcing rib plate, 14-first connecting piece, 15-first lug plate, 2-second plugging template, 21-second flange, 22-second fixing piece, 23-second reinforcing rib plate, 24-second connecting piece, 25-second lug plate, 3-third plugging template, 4-stay bar, 5-trolley template, 6-third connecting piece, 7-supporting structure, 71-first support, 72-second support, 73-third support, 8-wedge block and 9-water stop.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, so that the objects, technical solutions and advantages of the present utility model will become more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 and 2, the mine tunnel secondary lining pouring plug template according to the exemplary embodiment of the present utility model includes a first plugging template 1 and a second plugging template 2, a first flange 11 for fixing a water stop is integrally provided in a top length direction of the first plugging template 1, a second flange 21 for fixing a water stop is integrally provided in a bottom length direction of the second plugging template 2, and a width of the second flange 21 is adapted to a width of the first flange 11.
A plurality of first fixing pieces 12 are arranged on the length direction of the first flange 11, the first fixing pieces 12 are L-shaped (refer to figure 2), a first vertical edge of each first fixing piece is connected with the bottom of the first flange 11, a second vertical edge is separated from the edge of the first flange 11 by a certain distance, and a first through hole is formed in each second vertical edge; a plurality of second fixing pieces 22 are arranged on the length direction of the second flange 21, the second fixing pieces 22 are L-shaped, a first vertical edge of each second fixing piece 22 is connected with the top of the second flange 21, a certain distance is reserved between the second vertical edge and the edge of the second flange 21, a second through hole is formed in each second vertical edge, and the second vertical edge of the first fixing piece 12 and the second vertical edge of each second fixing piece 22 are detachably connected through bolts or pin shafts; when the plug templates are installed, the first plug templates 1 and the second plug templates 2 can be connected together by enabling bolts or pins to pass through the first through holes and the second through holes; the first plugging template 1 and the second plugging template 2 can be connected through bolts or pin shafts to form an integral structure, the second plugging template 2 can rotate for a certain angle relative to the first plugging template 1, and the first plugging template and the second plugging template are transported to the installation position at the same time, so that the template installation and disassembly efficiency can be increased. The first fixing piece 12 and the second fixing piece 22 can also enable the first flange 11 and the second flange 21 to press the water stop belt, so that the construction quality of the secondary lining concrete is improved.
The back side of the first plugging template 1 is provided with two groups of first reinforcing rib plates 13, the two groups of first reinforcing rib plates 13 are respectively arranged close to two ends of the first plugging template 1, each group of first reinforcing rib plates 13 comprises a plurality of first reinforcing rib plates, each first reinforcing rib plate 13 is parallel to each other, and the first reinforcing rib plates 13 are used for improving the structural strength of the first plugging template 1; the first vertical edge of the first fixing member 12 is attached to the surface of the first reinforcing rib plate 13, so that the stability of the connection of the first fixing member 12 on the first flange 11 is enhanced. Two groups of second reinforcing rib plates 23 are arranged on the back side of the second plugging template 2, the two groups of second reinforcing rib plates 23 are respectively arranged close to two ends of the second plugging template 2, each group of second reinforcing rib plates 23 comprises a plurality of second reinforcing rib plates, the second reinforcing rib plates 23 are mutually parallel, and the second reinforcing rib plates 23 are used for improving the structural strength of the second plugging template 2; the first vertical edge of the second fixing member 22 is attached to the surface of the second reinforcing rib plate 33, so as to enhance the stability of the connection of the second fixing member 22 to the second flange 21.
A plurality of first connecting pieces 14 are respectively arranged at the two ends of the back side of the first plugging template 1 along the height direction, connecting holes are formed in the first connecting pieces 14, and in the use process, adjacent first plugging templates 1 are detachably connected with bolts through the first connecting pieces 14; the back side both ends of second shutoff template 2 are provided with a plurality of second connecting pieces 24 along the direction of height respectively, are provided with the connecting hole on the second connecting piece 24, and in the use, adjacent second shutoff template 2 passes through second connecting piece 24 and bolt detachable connection.
The back side middle part of first shutoff template 1 still parallel arrangement has first otic placode 15 of multirow, and every row of first otic placode 15 sets up along first shutoff template 1 direction of height, and every row includes a plurality of first otic placodes, is provided with first earhole on every first otic placode. The middle part of the back side of the second plugging template 2 is also provided with a plurality of rows of second earplates 25 in parallel, each row of second earplates 25 is arranged along the height direction of the second plugging template 2, each row comprises a plurality of second earplates, and each second earplate is provided with a second earhole. The second plugging template 2 is installed on the first plugging template 1, the position of each row of second earplates 25 corresponds to the position of each row of first earplates 15, and the sizes of the second earholes and the first earholes are matched with the sizes of the supporting rods 4 so that the supporting rods 4 penetrate through the second earholes and the first earholes, the second plugging template 2 and the first plugging template are fixed, and the connection stability of the first plugging template 1 and the second plugging template 2 is enhanced. The stay bar 4 is preferably a steel pipe with phi 48 x 3.5 (the outer diameter is 48mm, the wall thickness is 3.5 mm).
The first plugging template 1 and the second plugging template 2 are both steel moulds, the first fixing piece 12, the first reinforcing rib plate 13, the first connecting piece 14 and the first lug plate 15 are all welded on the first plugging template 1, and the second fixing piece 22, the second reinforcing rib plate 23, the second connecting piece 24 and the second lug plate 25 are all welded on the second plugging template 2 so as to enhance the stability of connection.
Referring to fig. 2, the bottom of the first plugging template is detachably connected with the trolley template 5 through a third connecting piece 6, the second plugging template is mounted on the first plugging template, the first flange of the first plugging template and the second flange of the second plugging template clamp the water stop 9, and the first plugging template and the second plugging template are supported and fixed through the supporting rod 4.
The back side of the trolley template 5 is also provided with a supporting structure 7, and the stability of the installation of the plugging template can be enhanced through the supporting structure 7, so that the construction quality of the second lining is improved. The support structure 7 comprises a first support 71, a second support 72 and a third support 73, wherein a first end of the first support 71 is connected with the trolley template 5 in a welding mode, the top of a second end of the first support 71 is connected with the second support 72, the first support 71 and the second support 72 are made of I-steel, and the second support 72 is welded with the first support 71. The third support 73 is preferably a steel tube with a diameter of 48 x 3.5, the third support 73 is inclined, a first end of the third support 73 is abutted or welded on a web plate of the second support 72, and a second end of the third support is abutted, welded or connected with the top of the stay bar 4 in a buckling manner.
When the tunnel section is deformed greatly and the second plugging template 2 can not completely plug the end part of the trolley, the end part of the trolley can be plugged by adopting the third plugging template 3 according to actual construction conditions, the third plugging template 3 is a wood pattern, and in the plugging process of the third plugging template 3, the bottom of the third plugging template 3 is attached to the top of the second plugging template 2 for a certain length. Because the third plugging template 3 is a wood pattern, an installation groove matched with the top of the second plugging template can be formed in the bottom of the third plugging template 3, the installation groove is formed in the length direction of the third plugging template 3, and the top of the second plugging template is embedded into the installation groove, so that the bottom of the third plugging template 3 is completely attached to the top of the second plugging template, and slurry leakage in the concrete pouring process is avoided; the third plugging template 3 is supported by a wedge block 8, the wedge block 8 is a wooden wedge, a first end of the wooden wedge is connected to the back side of the third plugging template 3, a second end of the wooden wedge is connected to the stay bar 4, and the wooden wedge is arranged close to the top of the stay bar 8; when the third plugging template 3 is loosened, the third support 73 can be pressed down, the stability of the installation of the third plugging template 3 can be enhanced under the action of the wedge block 8 and the third support 73, the stability of the installation of the third plugging template 3 is improved, and the construction quality of the second lining is further improved.
The foregoing is a detailed description of specific embodiments of the utility model and is not intended to be limiting of the utility model. Various alternatives, modifications and improvements will readily occur to those skilled in the relevant art without departing from the spirit and scope of the utility model.
Claims (10)
1. The utility model provides a mine method tunnel secondary lining pouring end cap template which characterized in that includes: the water stop device comprises a first plugging template (1) and a second plugging template (2), wherein a first flange (11) for fixing a water stop is integrally arranged in the length direction of the top of the first plugging template (1), a second flange (21) for fixing the water stop is integrally arranged in the length direction of the bottom of the second plugging template (2), and the width of the second flange (21) is matched with the width of the first flange (11);
a plurality of first fixing pieces (12) are arranged in the length direction of the first flange (11), a plurality of second fixing pieces (22) are arranged in the length direction of the second flange (21), and the first fixing pieces (12) and the second fixing pieces (22) are detachably connected;
a plurality of rows of first lug plates (15) are arranged in parallel in the middle of the back side of the first plugging template (1), and each row of first lug plates (15) is arranged along the height direction of the first plugging template (1); a plurality of rows of second ear plates (25) are arranged in parallel in the middle of the back side of the second plugging template (2), and each row of second ear plates (25) is arranged along the height direction of the second plugging template (2); the positions of the second lugs (25) of each row correspond to the positions of the first lugs (15) of each row, and the first lugs (15) of each row are connected with the second lugs (25) of each row through the stay bars (4).
2. The mining tunnel secondary lining pouring plug template according to claim 1, wherein the first fixing piece (12) is L-shaped, a first vertical edge of the first fixing piece is connected with the top of the first flange (11), a second vertical edge of the first fixing piece is separated from the edge of the first flange (11) by a certain distance, and a first through hole is formed in the second vertical edge; the second fixing piece (22) is L-shaped, a first vertical edge of the second fixing piece is connected with the bottom of the second flange (21), a certain distance is reserved between the second vertical edge and the edge of the second flange (21), a second through hole is formed in the second vertical edge, and the second vertical edge of the first fixing piece (12) is detachably connected with the second vertical edge of the second fixing piece (22).
3. The mining tunnel secondary lining pouring plug template according to claim 2, wherein two groups of first reinforcing rib plates (13) are arranged on the back side of the first plugging template (1), the two groups of first reinforcing rib plates (13) are respectively arranged close to two ends of the first plugging template (1), each group of first reinforcing rib plates (13) comprises a plurality of first reinforcing rib plates, and each first reinforcing rib plate (13) is parallel to each other; the back side of the second plugging template (2) is provided with two groups of second reinforcing rib plates (23), the two groups of second reinforcing rib plates (23) are respectively close to two ends of the second plugging template (2), each group of second reinforcing rib plates (23) comprises a plurality of second reinforcing rib plates, and each second reinforcing rib plate (23) is parallel to each other.
4. The mining tunnel secondary lining pouring plug template according to claim 3, wherein the first vertical edge of the first fixing piece (12) is attached to the surface of the first reinforcing rib plate (13), and the first vertical edge of the second fixing piece (22) is attached to the surface of the second reinforcing rib plate (33).
5. The mining tunnel secondary lining pouring plug template according to claim 1, wherein a plurality of first connecting pieces (14) are respectively arranged at two ends of the back side of the first plugging template (1) along the height direction, and connecting holes are formed in the first connecting pieces (14); and a plurality of second connecting pieces (24) are respectively arranged at the two ends of the back side of the second plugging template (2) along the height direction, and connecting holes are formed in the second connecting pieces (24).
6. The mine tunnel secondary lining pouring plug template according to claim 1, wherein the bottom of the first plugging template (1) is detachably connected with the trolley template (5) through a third connecting piece (6), a supporting structure (7) is arranged on the back side of the trolley template (5), the supporting structure (7) comprises a first support (71), a second support (72) and a third support (73), the first end of the first support (71) is connected with the trolley template (5), the top of the second end of the first support (71) is connected with the second support (72), the third support (73) is obliquely arranged, the first end of the third support (73) is connected to a web plate of the second support (72), and the second end of the third support is connected with the top of the supporting rod (4).
7. The mine tunnel secondary lining pouring plug template according to claim 1, wherein a first lug hole is formed in the first lug plate (15), a second lug hole is formed in the second lug plate (25), the size of the first lug hole and the size of the second lug hole are matched with those of the supporting rod (4), and the supporting rod (4) penetrates through the second lug hole and the first lug hole, so that the first plugging template (1) and the second plugging template (2) are fixedly connected.
8. The mining tunnel secondary lining pouring plug template according to claim 6, wherein the stay bar (4) and the third support (73) are steel pipes, and the first support (71) and the second support (72) are I-steel.
9. The mining tunnel secondary lining pouring plug template according to any one of claims 1 to 8, further comprising a third plugging template (3), wherein an installation groove matched with the top of the second plugging template (2) is formed in the bottom of the third plugging template (3), the installation groove is formed in the length direction of the third plugging template (3), and the top of the second plugging template (2) is embedded into the installation groove; the third plugging template (3) is supported by a wedge block (8), a first end of the wedge block (8) is connected to the back side of the third plugging template (3), and a second end of the wedge block is connected to the stay bar (4).
10. The mining tunnel secondary lining pouring plug template according to claim 9, wherein the first plugging template (1) and the second plugging template (2) are steel forms, the third plugging template (3) is a wood form, and the wedge block (8) is a wood wedge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321018418.6U CN219826849U (en) | 2023-04-30 | 2023-04-30 | Mine tunnel secondary lining pouring plug template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321018418.6U CN219826849U (en) | 2023-04-30 | 2023-04-30 | Mine tunnel secondary lining pouring plug template |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219826849U true CN219826849U (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321018418.6U Active CN219826849U (en) | 2023-04-30 | 2023-04-30 | Mine tunnel secondary lining pouring plug template |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219826849U (en) |
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2023
- 2023-04-30 CN CN202321018418.6U patent/CN219826849U/en active Active
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