CN219118186U - Reinforcing structure for hole opening of pipe jacking working well at deep sludge - Google Patents
Reinforcing structure for hole opening of pipe jacking working well at deep sludge Download PDFInfo
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- CN219118186U CN219118186U CN202223413312.4U CN202223413312U CN219118186U CN 219118186 U CN219118186 U CN 219118186U CN 202223413312 U CN202223413312 U CN 202223413312U CN 219118186 U CN219118186 U CN 219118186U
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Abstract
The utility model belongs to the technical field of underground engineering construction and relates to a deep silt department push pipe working well entrance to a cave reinforced structure, including steel wall and inner wall reinforced wall, the bottom of steel wall perpendicular to working well, steel wall fixed connection is in the side that the working well wall is close to the push pipe working face, the steel wall comprises a plurality of hasp steel-pipe piles, two adjacent hasp steel-pipe piles are detachable to be connected, inner wall reinforced wall fixed connection is in the inner wall of working well, still be provided with the reinforcement layer between steel wall and the inner wall reinforced wall, reinforcement layer fixed connection is in the one side that the inner wall reinforced wall kept away from the working well inner wall; the reinforced structure of this application has set up multiple reinforced wall body to reach the effect of consolidating the working shaft wall at push pipe working face place.
Description
Technical Field
The application belongs to the technical field of underground engineering construction, and particularly relates to a pipe jacking working well opening reinforcing structure at a deep silt position.
Background
In the initial stage of underground pipe gallery and underground rain sewage pipe construction, a working well needs to be formed, in order to communicate two working wells, constructors need to use pipe jacking equipment to form a hole in the working well wall, but when the pipe jacking equipment just begins to push out the hole of the working well wall, rock soil and slurry of the working well wall where the hole is formed easily fall into the working well, so that operation cannot be performed, and certain danger exists.
Therefore, the inventor considers that the working well wall where the pipe jacking working surface is located needs to be reinforced.
Disclosure of Invention
In order to consolidate the working well wall at top pipe working face place, this application provides a deep silt department top pipe working well entrance to a cave reinforced structure.
The technical problem to be solved in the application is realized by adopting the following technical scheme:
the utility model provides a deep silt department push pipe working well entrance to a cave reinforced structure, includes steel wall and inner wall reinforced wall, inner wall reinforced wall fixed connection is in the inner wall of working well, the bottom of steel wall perpendicular to working well, steel wall fixed connection is close to one side of push pipe working face in the working well wall, be provided with the reinforcement layer between steel wall and the inner wall reinforced wall, reinforcement layer fixed connection keeps away from the one side of working well inner wall in the inner wall reinforced wall.
Through the technical scheme, the reinforcing structure is provided with multiple reinforcing walls; the inner wall reinforcing wall is fixedly connected to the inner wall of the working well and is used for improving the inner wall strength of the working well and reducing the possibility of rock and soil sliding off the inner wall of the working well when the pipe jacking equipment is operated; the steel wall is perpendicular to the bottom of the working well, and is fixedly connected to one side of the working well wall, close to the pipe jacking working surface, so that the steel wall can support a rock soil layer in the working well wall, the strength of the working well wall is improved, and the possibility of collapse of the working well wall due to insufficient strength of the working well wall during operation of pipe jacking equipment is reduced; the reinforcing layer is arranged between the steel wall and the inner wall reinforcing wall and is used for filling a gap between the steel wall and the inner wall reinforcing wall so as to reduce the possibility that the underground soil flows into the working well along with the opening when the pipe jacking equipment ejects the wall of the working well.
Optionally, the steel wall includes a plurality of hasp steel-pipe piles, and is a plurality of hasp steel-pipe piles are parallel to each other, the one end of hasp steel-pipe pile inserts and fixed connection in the inside of working shaft wall, and the other end extends from the working shaft wall, detachably connects between two adjacent hasp steel-pipe piles.
Through the technical scheme, the lock catch steel pipe piles are mutually parallel and arranged in a row to form a steel blocking wall; one end of the lock catch steel pipe pile is inserted into and fixedly connected with the inside of the working well wall, so that the steel wall can be firmly and fixedly connected with the inside of the working well wall; the other end of the lock catch steel pipe pile extends out of the working well wall, so that a constructor can conveniently adjust the position of the lock catch steel pipe pile; any two adjacent hasp steel-pipe piles are detachably connected, are convenient for adjust the connection structure of steel wall, and simultaneously when the project is ending, the constructor of being convenient for retrieves the hasp steel-pipe pile.
Optionally, hasp steel-pipe pile fixedly connected with slide rail and slide bar, slide rail fixed connection is in one side of hasp steel-pipe pile, slide bar fixed connection is in one side that the slide rail was kept away from to the hasp steel-pipe pile, the slide bar sliding connection of hasp steel-pipe pile is in the slide rail of adjacent hasp steel-pipe pile.
Through the technical scheme, each lock catch steel pipe pile is fixedly connected with slide rail and slide rail, the slide rail and the slide bar of the same lock catch steel pipe pile are arranged relatively, the slide bar of the lock catch steel pipe pile is connected in the slide rail of the adjacent lock catch steel pipe pile in a sliding mode, and therefore the effect of detachable connection between two lock catch steel pipe piles is achieved.
Optionally, the grouting device further comprises a grouting steel pipe, one end of the grouting steel pipe is located inside the working well, the other end of the grouting steel pipe penetrates through the inner wall reinforcing wall and extends into the reinforcing layer, and a grouting outlet is formed in the position, located in the reinforcing layer, of the grouting steel pipe.
Through the technical scheme, one end of the grouting steel pipe is positioned in the working well, so that a constructor can conveniently input concrete to the grouting steel pipe; the grouting steel pipe is provided with a grouting outlet, the grouting outlet is positioned in the grouting steel pipe penetrating reinforcing layer, the grouting outlet is used for pouring concrete towards the position where the reinforcing layer is positioned, and the reinforcing layer is formed after the concrete is solidified.
Optionally, the inner wall reinforcing wall is around setting up in the inboard of working well, the inner wall reinforcing wall includes a plurality of stirring stake and pours the layer, stirring stake perpendicular to the bottom of working well, stirring stake inserts and fixed connection in the bottom of working well, pour layer fixed connection in each stirring stake and be close to one side of working well inside.
Through the technical scheme, the inner wall reinforcing wall is arranged on the inner side of the working well in a surrounding manner, so that all inner walls of the working well are reinforced; the stirring pile is perpendicular to the bottom of the working well, and the stirring pile is inserted into and fixedly connected with the bottom of the working well, so that the inner wall reinforcing wall is fixedly connected with the bottom of the working well, and the strength of the inner wall reinforcing wall is improved; the layer is built in each stirring stake and is close to the inside one side of working well, has further improved the intensity of inner wall reinforcing wall.
Optionally, the inner wall reinforcing wall further comprises a plurality of crown beams, and the crown beams are fixedly connected to the tops of the stirring piles.
Through above-mentioned technical scheme, the crown roof beam is in the same place a plurality of stirring stake fixed connection, makes the effect that can share each other between a plurality of stirring stake, further improves the intensity of inner wall reinforcing wall.
Optionally, the device further comprises a plurality of bearing waist beams, wherein the bearing waist beams are fixedly connected to the inner side of the inner wall reinforcing wall.
Through the technical scheme, the bearing waist beams are fixedly connected to the inner side of the inner wall reinforcing wall, so that the structural strength of the inner wall reinforcing wall is improved, and the possibility of pouring layer fragmentation caused by insufficient strength of the inner wall reinforcing wall when the pipe jacking equipment punches holes towards the inner wall reinforcing wall is reduced.
Optionally, the one end that the hasp steel-pipe pile extended the work wall of a well fixedly connected with hoist and mount head.
Through the technical scheme, the hoisting head is fixedly connected to one end, extending out of the working well wall, of each lock catch steel pipe pile, and when the steel wall is built, a constructor can operate the hoisting equipment to hoist each lock catch steel pipe pile to a designated position through the hoisting head; when dismantling the steel wall, operation lifting device can be through the hasp steel-pipe pile that the lifting head will dismantle lifts by crane.
Optionally, the working well comprises a tunnel reinforcing layer, wherein the tunnel reinforcing layer is fixedly connected to one side of the steel wall, which is far away from the inner wall of the working well.
Through the technical scheme, the tunnel reinforcing layer is used for reinforcing the channel wall of the pipe jacking equipment, so that the possibility that the channel of the pipe jacking equipment is buried due to insufficient strength of the side wall of the working well is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the reinforcing structure of the utility model is provided with multiple reinforcing walls, and comprises an inner wall reinforcing wall, a steel wall and a reinforcing layer, wherein the inner wall reinforcing wall is fixedly connected with the inner wall of the working well and is used for improving the inner wall strength of the working well and reducing the possibility of rock and soil sliding of the inner wall of the working well when the pipe jacking equipment works; the steel wall is perpendicular to the bottom of the working well, and is fixedly connected to one side of the working well wall, close to the pipe jacking working surface, so that the steel wall can support a rock soil layer in the working well wall, the strength of the working well wall is improved, and the possibility of collapse of the working well wall due to insufficient strength of the working well wall during operation of pipe jacking equipment is reduced; the reinforcing layer is arranged between the steel wall and the inner wall reinforcing wall and is used for filling a gap between the steel wall and the inner wall reinforcing wall so as to reduce the possibility that the underground soil flows into the working well along with the opening when the pipe jacking equipment ejects the wall of the working well.
2. The grouting steel pipe is used for pouring concrete into the position where the reinforcing layer is located; one end of the grouting steel pipe is positioned in the working well so as to facilitate the constructor to input concrete to the grouting steel pipe; the grouting steel pipe is provided with a grouting outlet, the grouting outlet is positioned in the grouting steel pipe penetrating reinforcing layer, the grouting outlet is used for pouring concrete towards the position where the reinforcing layer is positioned, and the reinforcing layer is formed after the concrete is solidified.
3. The lock catch steel pipe piles are mutually parallel and arranged in a row to form a steel blocking wall; one end of the lock catch steel pipe pile is inserted into and fixedly connected with the inside of the working well wall, so that the steel wall can be firmly and fixedly connected with the inside of the working well wall; the other end of the lock catch steel pipe pile extends out of the working well wall, so that a constructor can conveniently adjust the position of the lock catch steel pipe pile; two adjacent hasp steel-pipe piles are detachable to be connected, are convenient for adjust the connection structure of steel wall, and when the project is ending simultaneously, the constructor of being convenient for retrieves the hasp steel-pipe pile.
Drawings
FIG. 1 is a schematic structural view of a pipe-jacking working well opening reinforcing structure at a deep sludge site in accordance with a first embodiment of the present application;
FIG. 2 is a cross-sectional view of the section line A-A of FIG. 1;
FIG. 3 is an enlarged partial view of portion B of FIG. 1;
FIG. 4 is an enlarged partial view of portion C of FIG. 2;
fig. 5 is a schematic diagram illustrating the removal of the locking steel pipe pile during operation of the pipe jacking equipment according to the first embodiment of the present application;
FIG. 6 is an enlarged view of a portion D of FIG. 2;
fig. 7 is a cross-sectional view of a reinforced structure of a hole of a pipe-jacking working well at a deep sludge in a second embodiment of the present application.
Reference numerals illustrate:
100. a working well wall; 200. a push pipe device; 1. a steel wall; 11. locking the steel pipe pile; 111. a slide rail; 112. a slide bar; 1121. a fixing plate; 1122. a connecting plate; 12. hoisting the head; 2. a reinforcing layer; 21. reinforcing the clamping plate; 3. an inner wall reinforcing wall; 31. stirring piles; 32. pouring a layer; 33. a crown beam; 4. grouting a steel pipe; 41. a slurry outlet; 5. a bearing waist beam; 6. reinforcing the beam; 7. and a tunnel reinforcing layer.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-7.
The embodiment of the application discloses a deep silt department push pipe working well entrance to a cave reinforced structure consolidates the working shaft wall that push pipe working face is located.
Example 1
Referring to fig. 1, the reinforcing structure for the hole opening of the pipe jacking working well at the deep sludge comprises a steel wall 1, a reinforcing layer 2 and an inner wall reinforcing wall 3, wherein the steel wall 1 is perpendicular to the bottom of the working well, the steel wall 1 is fixedly connected to one side, close to a working well wall 100, close to a pipe jacking working surface, and the steel wall 1 is used for reinforcing the working well wall 100 where the pipe jacking working surface is located; the inner wall reinforcing wall 3 surrounds and is fixedly connected to the inner wall of the working well and is used for improving the strength of the reinforcing structure; the reinforcing layer 2 is located between the steel wall 1 and the inner wall reinforcing wall 3 and is used for filling a gap between the steel wall 1 and the inner wall reinforcing wall 3 so as to reduce the possibility that the underground soil flows into the working well along with the hole when the pipe jacking device 200 ejects the wall of the working well.
Referring to fig. 1 and 2, the inner wall reinforcing wall 3 includes a plurality of stirring piles 31, a casting layer 32 and a crown beam 33, the stirring piles 31 are perpendicular to the bottom of the working well, one end of each stirring pile 31 is inserted into and fixedly connected to the bottom of the working well, so that the inner wall reinforcing wall 3 is fixedly connected to the bottom of the working well, the plurality of stirring piles 31 encircle the inner wall of the working well, and two adjacent stirring piles 31 are fixedly connected, thereby improving the strength of the inner wall reinforcing wall 3; in this embodiment, the casting material used in the casting layer 32 is C20 concrete, and the C20 concrete is convenient for construction and shaping, so that the pipe jacking equipment 200 is facilitated to make a hole; the pouring layer 32 is fixedly connected to one side of the stirring pile 31 far away from the inner wall of the working well, so that the strength of the inner wall reinforcing wall 3 is further improved; the crown beam 33 is provided with two and all is on a parallel with the steel wall 1, and two crown beams 33 interval sets up and equal fixed connection in a plurality of stirring stake 31 and pours the top of layer 32, makes a plurality of stirring stake 31 fixed connection together, can bear the effect that self received jointly between a plurality of stirring stake 31, has further improved the intensity of inner wall reinforcing wall 3.
The deep silt pipe jacking working well opening reinforcing structure further comprises a bearing waist beam 5 and a reinforcing beam 6, wherein the bearing waist beam 5 and the reinforcing beam 6 are used for improving the structural strength of the inner wall reinforcing wall 3; the two rows of the bearing waist beams 5 are respectively and fixedly connected to the two sides of the pouring layer 32, which are connected with the crown beams 33, the two rows of the bearing waist beams 5 are mutually parallel, each bearing waist beam 5 is arranged at intervals, so that the inner wall of the inner wall reinforcing wall 3 where the crown beams 33 are positioned is reinforced, the action of shared force between the two inner walls can be realized, and the possibility that the pouring layer 32 is broken and collapses due to insufficient strength of the inner wall reinforcing wall 3 when the pipe jacking equipment 200 holes the inner wall reinforcing wall 3 is reduced; the two ends of the reinforcing beam 6 are respectively and fixedly connected with two bearing waist beams 5 positioned at the same height, so that the strength of the structural surface of the inner wall reinforcing wall 3 where the crown beam 33 is positioned is further improved.
Referring to fig. 1 and 3, the steel wall 1 includes a plurality of locking steel pipe piles 11, one end of each locking steel pipe pile 11 is perpendicular to the bottom of the working well and fixedly connected to the inside of the working well wall 100, and the other end extends out of the working well wall 100, so that the locking steel pipe piles 11 can be hoisted and adjusted in position by constructors.
Each lock catch steel pipe pile 11 is fixedly connected with a sliding rail 111 and a sliding rod 112, the sliding rail 111 is fixedly connected to one side of each lock catch steel pipe pile 11, the sliding rod 112 is fixedly connected to one side of each lock catch steel pipe pile 11 away from the sliding rail 111, and the sliding rod 112 of each lock catch steel pipe pile 11 is slidably connected in the sliding rail 111 of each adjacent lock catch steel pipe pile 11, so that the effect of detachable connection of two adjacent lock catch steel pipe piles 11 is achieved; the slide bar 112 comprises a fixed plate 1121 and a connecting plate 1122, the connecting plate 1122 is fixedly connected to one side of the lock catch steel pipe pile 11, the fixed plate 1121 is fixedly connected to one end of the connecting plate 1122 far away from the lock catch steel pipe pile 11, in the embodiment, the slide rail 111 is in a C-shaped tube shape, the width of the connecting plate 1122 is smaller than the caliber of an opening of the slide rail 111, so that the connecting plate 1122 can move relative to the slide rail 111, and the slide bar 112 is further connected to the slide rail 111 in a sliding manner; when constructors need to adjust the positions of the lock catch steel pipe piles 11, the constructors can draw out a plurality of lock catch steel pipe piles 11 from the steel wall 1, and when the engineering ends, the constructors can draw out each lock catch steel pipe pile 11 from the working well wall 100, so that the lock catch steel pipe piles 11 can be recycled.
Referring to fig. 4 and 5, one end of the lock catch steel pipe pile 11 extending out of the working well wall 100 is fixedly connected with a hoisting head 12, a through hole is formed in the hoisting head 12, when a constructor uses the pipe jacking equipment 200 to punch holes on the working well wall 100, the lock catch steel pipe pile 11 needs to be taken out of the steel wall 1 so as to reserve a hole drilling space of the pipe jacking equipment 200, and the constructor uses a hoisting rope to bind the hoisting head 12 through the through hole, so that the constructor uses the hoisting machine to hoist the lock catch steel pipe pile 11.
Referring to fig. 1 and 6, the pipe jacking working well opening reinforcing structure at the deep sludge position further comprises a grouting steel pipe 4, one end of the grouting steel pipe 4 is positioned in the working well, the other end penetrates through the inner wall reinforcing wall 3 and extends into the reinforcing layer 2, the grouting steel pipe 4 is provided with a grouting opening 41, the grouting opening 41 is positioned in the reinforcing layer 2, constructors pour concrete towards one end of the grouting steel pipe 4 positioned in the working well, the concrete is sprayed out of the grouting opening 41 along an inner pipeline of the grouting steel pipe 4, the cavity for accommodating the reinforcing layer 2 is filled with the concrete sprayed out of the grouting opening 41 in the working well wall 100, and after the concrete is solidified, the reinforcing layer 2 is formed; the grouting steel pipes 4 are provided with a plurality of grouting steel pipes to improve the grouting rate, so that the effect of accelerating the construction of the reinforcing layer 2 is achieved; in particular, the strength of the concrete material adopted by the reinforcing layer 2 is lower than that of the excavating head of the pipe jacking equipment 200, so that the pipe jacking equipment 200 can excavate through the working well wall 100; the reinforcing layer 2 is provided with the reinforcing splint 21, before the cavity department that is used for holding the reinforcing layer 2 towards the wall of a well inside fills up the concrete, still need to insert two reinforcing splint 21 perpendicularly towards working wall of a well 100 between steel wall 1 and inner wall reinforcing wall 3, two reinforcing splint 21 interval setting and all perpendicular to steel wall 1, as the boundary of reinforcing layer 2, play the effect of the position of restriction reinforcing layer 2.
The following working principles of the present embodiment are as follows: one end of each of the plurality of locking steel pipe piles 11 extending out of the working well wall 100 is provided with a hoisting head 12, so that construction hoisting is facilitated, and the plurality of locking steel pipe piles 11 are detachably connected in a row to form a steel blocking wall 1 for reinforcing the working well wall 100 where the pipe jacking working surface is located; a cavity for accommodating the reinforcing layer 2 is formed between the steel wall 1 and the inner wall of the working well, concrete slurry is injected into the cavity through the grouting steel pipes 4 by the grouting steel pipes 4, the reinforcing layer 2 is formed after the concrete is solidified, and the reinforcing layer 2 further reinforces the working well wall 100 where the top pipe working surface is located; the inner wall reinforced wall 3 is used for improving the strength of the reinforced structure of the application, the inner wall reinforced wall 3 comprises stirring piles 31, a pouring layer 32 and crown beams 33, the stirring piles 31 are used for supporting the inner wall reinforced wall 3, the pouring layer 32 is used as a structural surface of the inner wall of a foundation pit, the crown beams 33 fixedly connect the pouring layer 32 with the stirring piles 31, and the strength of the inner wall reinforced wall 3 is reinforced, so that the reinforced structure of the application is further reinforced; the inner wall reinforcing wall 3 is fixedly connected with a bearing waist beam 5 and a reinforcing beam 6, and further reinforces the working well wall 100 where the pipe jacking working face is located.
Example two
Referring to fig. 7, on the basis of the first embodiment, the reinforcing structure for the opening of the pipe jacking working well at the deep sludge position further comprises a tunnel reinforcing layer 7, wherein the tunnel reinforcing layer 7 is fixedly connected to one side of the steel wall 1 far away from the inner wall of the working well, in the embodiment, the tunnel reinforcing layer 7 is formed by pouring concrete slurry after being driven out by a triaxial stirring pile and is used for reinforcing the wall of a channel driven out by the pipe jacking equipment 200, so that the possibility that the channel driven out by the pipe jacking equipment 200 is buried due to insufficient strength of the working well wall 100 is reduced.
The foregoing embodiments are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, so that all equivalent changes according to the structure, shape and principle of the present application are covered by the scope of the present application.
Claims (9)
1. A pipe jacking working well opening reinforcing structure of a deep silt is characterized in that: including steel wall (1) and inner wall reinforcing wall (3), inner wall reinforcing wall (3) fixed connection is in the inner wall of working well, the bottom of steel wall (1) perpendicular to working well, one side that steel wall (1) fixed connection is close to the push pipe working face in working well wall (100), be provided with between steel wall (1) and inner wall reinforcing wall (3) reinforcing layer (2), reinforcing layer (2) fixed connection keeps away from the one side of working well inner wall in inner wall reinforcing wall (3).
2. The deep sludge jacking pipe work well opening reinforcing structure according to claim 1, wherein: the steel wall (1) comprises a plurality of lock catch steel pipe piles (11), a plurality of lock catch steel pipe piles (11) are parallel to each other, one end of each lock catch steel pipe pile (11) is inserted into the working well wall (100) and fixedly connected with the inside of the working well wall, the other end of each lock catch steel pipe pile extends out from the working well wall (100), and two adjacent lock catch steel pipe piles (11) are detachably connected.
3. The deep sludge jacking pipe work well opening reinforcing structure according to claim 2, wherein: the utility model discloses a hasp steel-pipe pile (11) fixedly connected with slide rail (111) and slide bar (112), slide rail (111) fixedly connected with is in one side of hasp steel-pipe pile (11), slide bar (112) fixedly connected with is in one side that hasp steel-pipe pile (11) kept away from slide rail (111), slide bar (112) sliding connection of hasp steel-pipe pile (11) is in slide rail (111) of adjacent hasp steel-pipe pile (11).
4. The deep sludge jacking pipe work well opening reinforcing structure according to claim 1, wherein: still include slip casting steel pipe (4), the one end of slip casting steel pipe (4) is located inside the work well, and the other end pierces through inner wall reinforcing wall (3) and extends to in strengthening layer (2), the position that slip casting steel pipe (4) are located in strengthening layer (2) is provided with grout outlet (41).
5. The deep sludge jacking pipe work well opening reinforcing structure according to claim 1, wherein: the inner wall reinforcing wall (3) surrounds the inner side arranged on the working well, the inner wall reinforcing wall (3) comprises a plurality of stirring piles (31) and pouring layers (32), the stirring piles (31) are perpendicular to the bottom of the working well, the stirring piles (31) are inserted into and fixedly connected to the bottom of the working well, and the pouring layers (32) are fixedly connected to one sides, close to the inside of the working well, of the stirring piles (31).
6. The deep sludge jacking pipe work well opening reinforcing structure according to claim 5, wherein: the inner wall reinforcing wall (3) further comprises a plurality of crown beams (33), and the crown beams (33) are fixedly connected to the tops of the stirring piles (31).
7. The deep sludge jacking pipe work well opening reinforcing structure according to claim 1, wherein: the novel steel belt is characterized by further comprising a plurality of bearing waist beams (5), wherein the bearing waist beams (5) are fixedly connected to the inner side of the inner wall reinforcing wall (3).
8. The deep sludge jacking pipe work well opening reinforcing structure according to claim 2, wherein: one end of the lock catch steel pipe pile (11) extending out of the working well wall (100) is fixedly connected with a hoisting head (12).
9. The deep sludge jacking pipe work well opening reinforcing structure according to claim 1, wherein: the tunnel is characterized by further comprising a tunnel reinforcing layer (7), wherein the tunnel reinforcing layer (7) is fixedly connected to one side, far away from the inner wall of the working well, of the steel wall (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223413312.4U CN219118186U (en) | 2022-12-16 | 2022-12-16 | Reinforcing structure for hole opening of pipe jacking working well at deep sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223413312.4U CN219118186U (en) | 2022-12-16 | 2022-12-16 | Reinforcing structure for hole opening of pipe jacking working well at deep sludge |
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| Publication Number | Publication Date |
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| CN219118186U true CN219118186U (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223413312.4U Active CN219118186U (en) | 2022-12-16 | 2022-12-16 | Reinforcing structure for hole opening of pipe jacking working well at deep sludge |
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| Country | Link |
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| CN (1) | CN219118186U (en) |
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- 2022-12-16 CN CN202223413312.4U patent/CN219118186U/en active Active
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