CN211666741U - Section of jurisdiction waterproof construction to tube slot is opened - Google Patents
Section of jurisdiction waterproof construction to tube slot is opened Download PDFInfo
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- CN211666741U CN211666741U CN202020122520.0U CN202020122520U CN211666741U CN 211666741 U CN211666741 U CN 211666741U CN 202020122520 U CN202020122520 U CN 202020122520U CN 211666741 U CN211666741 U CN 211666741U
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Abstract
The utility model relates to an open section of jurisdiction waterproof construction to tube gap, include: the device comprises a duct piece, a first waterproof sealing gasket, a second waterproof sealing gasket, a first water-swelling water stop strip, a second water-swelling water stop strip, a caulking material, a surface grouting hole, a first pipe joint grouting hole, a second pipe joint grouting hole, a grouting opening, a grouting main pipe, a grouting branch pipe, a weak current circuit line, an indicator lamp a, an indicator lamp b and an external battery; the segment is sequentially provided with a first water-swelling water stop strip, a first waterproof sealing gasket, a second water-swelling water stop strip, a second waterproof sealing gasket and a caulking material from outside to inside along the periphery of the segment. The utility model has the advantages that: the segment grouting system is independent, and the tube joints are repaired in a block-by-block manner: multiple waterproof measures are set to ensure the emergency waterproof quality; the special pipe pieces are all prefabricated in factories, and the quality of the special pipe pieces is guaranteed; a waterproof alarm system is arranged, and the water leakage condition is mastered at the first time; and multiple grouting pore channels are reserved to realize rapid plugging of water seepage.
Description
Technical Field
The utility model belongs to the technical field of subway section of jurisdiction water proof protection, in particular to open section of jurisdiction waterproof construction of tube slot is applicable to the percolating water protection and the repair of ring joint and longitudinal joint between the section of jurisdiction, is especially suitable for because of the waterproof inefficacy problem that the tube slot opened and lead to.
Background
Along with the wide popularization of subway traffic, the construction and the opening of subway tunnels bring convenience for people on trips. The segment structure is adopted in the subway construction on a large scale, the waterproof effect of each segment is good, and the circular seams and the longitudinal seams left after the segments are assembled form waterproof weak positions of the subway tunnel, so that the problem of water leakage is easily caused.
At present, the conventional method is to arrange one or two porous ethylene propylene diene monomer elastic sealing gaskets, and the permeation of water outside the pipe piece is blocked by the squeezing effect of two adjacent sealing gaskets, so that the waterproof effect is achieved. However, in practical engineering, when the cross section of the pipe piece deforms or the pipe piece deforms in a staggered manner, opening and staggered joints may occur between the pipe piece joints, so that the sealing gasket is partially or completely separated, and waterproof failure is caused. Secondly, when the underground water pressure outside the tunnel is high, the sealing is not tight due to the pure sealing gasket waterproof effect, and high-pressure water can still enter the tunnel through the waterproof weak point of the joint, so that the local leakage phenomenon is caused. In addition, the sealing gasket is easy to loose stress or deform under the long-term compression action and aging action, so that the waterproof capability of the sealing gasket is reduced, the later-stage tunnel maintenance cost is increased, and the operation safety of the tunnel is also influenced.
In summary, the problems of the prior art that the waterproof measure is easy to lose effectiveness, the waterproof effect is limited, the protection measure is single, the later maintenance cost is high, and high-pressure water cannot be effectively blocked exist generally, and the improvement of the technology is urgently needed to solve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough among the prior art, provide one kind to the open section of jurisdiction waterproof construction of tube slot.
The pipe piece waterproof structure for opening pipe joints comprises a pipe piece, a first waterproof sealing gasket, a second waterproof sealing gasket, a first water-swelling water stop strip, a second water-swelling water stop strip, a caulking material, a surface grouting hole, a first pipe joint grouting hole, a second pipe joint grouting hole, a grouting opening, a grouting main pipe, a grouting branch pipe, a weak current circuit line, an indicator lamp a, an indicator lamp b and an external battery; the first water-swelling water stop strip, the first waterproof sealing gasket, the second water-swelling water stop strip, the second waterproof sealing gasket and the caulking material are sequentially arranged around the pipe piece from outside to inside in a splicing manner and are respectively adhered to the inner parts of the corresponding annular grooves; the first water-swelling water stop strip is arranged close to the first waterproof sealing gasket, the second water-swelling water stop strip is arranged close to the second waterproof sealing gasket, and the caulking material is arranged at the port of the inner surface of the pipe joint; the first pipe joint grouting hole is arranged in the center between the first waterproof sealing gasket and the second water-swelling water stop rod, the second pipe joint grouting hole is arranged in the center between the second waterproof sealing gasket and the caulking material, and the surface grouting hole is annularly arranged for a circle along the outer surface of each pipe piece; each grouting hole is directly communicated with a grouting branch pipe inside the duct piece, the grouting branch pipes on different sides of different layers are mutually independent and are respectively connected with a corresponding grouting main pipe, and the grouting main pipes are connected with corresponding grouting ports on the inner wall of the duct piece; the inside light current circuit line that sets up of section of jurisdiction, light current circuit line adopt two shunts mode connection, lean on the outside to connect gradually first waterproof gasket and pilot lamp an along separate routes, lean on the inboard to connect gradually the second along separate routes waterproof gasket and pilot lamp b, light current circuit line trunk circuit installs at the section of jurisdiction inner wall to connect external battery.
Preferably, the method comprises the following steps: the slip casting mouth sets up at the section of jurisdiction inner wall, including slip casting mouth an, slip casting mouth b and slip casting mouth c, and slip casting mouth a passes through the surface grouting hole that slip casting trunk and slip casting branch connection correspond, and slip casting mouth b passes through the first pipeline seam grouting hole that slip casting trunk and slip casting branch connection correspond, and slip casting mouth c passes through the second pipeline seam grouting hole that slip casting trunk and slip casting branch connection correspond, the slip casting trunk and the slip casting branch pipe mutually independent of different positions.
Preferably, the method comprises the following steps: the surface grouting holes, the first pipe seam grouting holes and the second pipe seam grouting holes are all connected to corresponding grouting branch pipes, each grouting branch pipe is independently connected with a grouting main pipe, one end of each grouting main pipe is connected with the grouting branch pipe, and the other end of each grouting main pipe is connected with a grouting opening corresponding to the inner wall of the corresponding pipe piece.
Preferably, the method comprises the following steps: the major part of light current circuit line is pre-buried inside the section of jurisdiction, and pre-buried circuit joint in controlling two sealed pads staggers from top to bottom to the certain distance setting of interval, the trunk line setting of light current circuit line is at the section of jurisdiction inner wall, and connects external battery.
Preferably, the method comprises the following steps: the indicator light a and the indicator light b can both emit light signals under the condition that lower current passes through.
Preferably, the method comprises the following steps: first waterproof sealing pad, second way waterproof sealing pad, first way water swelling sealing rod, second way water swelling sealing rod all follow each section of jurisdiction hoop and arrange in succession all around to paste in the recess of corresponding shape, and can fully laminate closely under the pressurization of adjacent section of jurisdiction.
Preferably, the method comprises the following steps: the slip casting branch pipe all sets up alone in every side of section of jurisdiction, sets up the direction and is on a parallel with this lateral wall, and the slip casting branch pipe of longitudinal joint face is the linear type, and the slip casting branch pipe of circumferential joint face is arc, and the radian is the same with the section of jurisdiction radian.
Preferably, the method comprises the following steps: the surface grouting holes are annularly arranged on the outer surface of the pipe piece, and 4 rows are formed in total; the first tube seam grouting hole is arranged at the position close to the outer side of the tube seam, and each side wall is provided with a row of 4 mutually independent holes; the second pipeline seam slip casting hole sets up and leans on inboard position at the pipeline seam, and each lateral wall sets up one row and mutually independent, totally 4.
The utility model has the advantages that:
1) the segment grouting system is independent, and the tube joints are repaired in a block and pertinence manner
This waterproof construction independent setting is in each section of jurisdiction structure, and inside slip casting pipe-line system is independent each other, can carry out local regional slip casting according to concrete percolating water position and condition in actual engineering, and the pipe joint of shutoff seepage department is pertinence, solves the seepage problem. Under the condition of ensuring the waterproof effect, the waste and pollution caused by large-area grouting are avoided.
2) Multiple waterproof measures are arranged to ensure the emergency waterproof quality
This waterproof construction has set up multiple waterproof measure to the easy water leakage problem of tube seam department, has mainly included section of jurisdiction surface slip casting hole, tube seam slip casting hole, waterproof sealing pad, meet water inflation rubber strip etc. under the circumstances of leaving safe redundancy, fully ensures the waterproof validity of tube seam.
3) The special pipe pieces are all prefabricated in factories, and the quality of the special pipe pieces is guaranteed to some extent
The pre-buried electric wire part among the slip casting pipe-line system, the sealed pad system that this waterproof construction set up in the section of jurisdiction and the waterproof alarm system is the prefabricated production of mill, and the installation of outside surplus equipment all can be accomplished at the scene fast, has avoided the scene to carry out too much extra processing to the section of jurisdiction, fully ensures engineering quality.
4) A waterproof alarm system is arranged to master the leakage situation at the first time
This waterproof construction all sets up the circuit end in the waterproof sealing pad of each way, and after the waterproof sealing pad of a certain floor became invalid and crosses the water, because the water energy is electrically conductive, the circuit that corresponds can communicate to the pilot lamp that makes this branch circuit correspond lights, reminds maintainer this department section of jurisdiction local leaking of appearing. Meanwhile, the severity of water leakage can be judged according to the lighting conditions of different indicator lamps.
5) Multiple grouting pore channels are reserved to realize rapid plugging of water seepage
This waterproof construction's slip casting pipeline divide into the multilayer, including section of jurisdiction surface grout hole, first pipeline seam grout hole and second pipeline seam grout hole, can confirm under the condition of pipeline seam degree of leaking according to waterproof alarm system's suggestion, carry out slip casting shutoff prevention of seepage a little to the pipeline seam of the different degree of depth, the simple easy operation of process of later stage repair pipeline seam is convenient for carry out timely quick repair during the subway is shut down.
Drawings
FIG. 1 is a schematic front view of an integral waterproofing structure between adjacent segments;
FIG. 2 is a perspective view of the interior waterproofing structure of a monolithic duct piece;
FIG. 3 is a schematic view of different waterproof layer arrangements on the seam surface of the pipe;
FIG. 4 is a schematic view of the arrangement of grouting holes on the surface of a segment;
FIG. 5 is a schematic view of the grouting system in the condition of opening the duct piece;
fig. 6 is a schematic view of a segment waterproofing alarm system arrangement.
Description of reference numerals: a segment 1; a first waterproof gasket 2; a second waterproof gasket 3; a first water-swelling sealing rod 4; a second water-swelling water stop strip 5; a caulking material 6; a surface grouting hole 7; a first pipe seam grouting hole 8; a second pipe seam grouting hole 9; grouting port a 10; grouting port b 11; a grouting port c 12; grouting a main pipe 13; a grouting branch pipe 14; a weak current circuit line 15; an indicator lamp a 16; an indicator lamp b 17; externally connected to a battery 18.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
As shown in fig. 1-6, the segment waterproof structure for pipe seam opening includes a grouting pipeline system, a sealing pad system and a waterproof alarm system.
As shown in fig. 1, two pipe pieces 1 are spliced with each other along a longitudinal joint surface, a first water-swelling sealing rod 4, a first waterproof sealing gasket 2, a second water-swelling sealing rod 5, a second waterproof sealing gasket 3 and a joint filling material 6 are sequentially arranged at the pipe joint from outside to inside, and the water-swelling sealing rod and the waterproof sealing gasket are arranged in close proximity; a first pipe seam grouting hole 8 is formed in the center position between the first waterproof sealing gasket 2 and the second water-swelling water stop rod 5, and a second pipe seam grouting hole 9 is formed in the center position between the second waterproof sealing gasket 3 and the caulking material 6; the grouting holes in different rows of each side wall are mutually independent and are respectively and correspondingly connected with a grouting branch pipe 14 and a grouting main pipe 13; the slip casting main pipe 13 is connected and is installed at the different slip casting mouths of section of jurisdiction 1 inner wall, can realize carrying out the slip casting to the different degree of depth positions of pipe joint and repair, can be through slip casting mouth a10 to the surface grouting hole 7 slip casting of corresponding position, accessible slip casting mouth b11 to the 8 slip casting of first pipe joint slip casting hole of corresponding position, accessible slip casting mouth c12 is to the slip casting of second pipe joint slip casting hole 9 of corresponding position.
As shown in fig. 2, the first water-swelling sealing rod 4, the first waterproof sealing gasket 2, the second water-swelling sealing rod 5, the second waterproof sealing gasket 3 and the gap filling material 6 are respectively adhered to the corresponding grooves; staggered weak current circuit line 15 ends are reserved in the first waterproof sealing gasket 2 and the second waterproof sealing gasket 3 on one side, two ends on a vertical line are combined to form a group and are connected into a parallel weak current circuit line 15, and 2-4 independent weak current circuits are arranged on one side of the single-piece duct piece 1; the corresponding positions of the hole sites of the first pipe seam grouting hole 8 and the second pipe seam grouting hole 9 are aligned with the position of the end of the weak current circuit line 15.
As shown in fig. 3, the duct piece 1 is sequentially provided with a first water-swelling sealing rod 4, a first waterproof sealing gasket 2, a first pipe seam grouting hole 8, a second water-swelling sealing rod 5, a second waterproof sealing gasket 3, a second pipe seam grouting hole 9 and a gap filling material 6 from outside to inside along the side wall of the circular seam, and the above are distributed in a circular arc shape, and the radian is the same as the outer radian of the duct piece 1; the tube seam grouting holes in the same row are arranged at equal intervals, and the number of the tube seam grouting holes is about 4-5.
As shown in fig. 4, the segments 1 are joined together at staggered joints, and the surface grouting holes 7 on the outer surfaces of the segments are circumferentially arranged at equal intervals along the side wall, and the number of the surface grouting holes 7 in each row is about 4-5.
As shown in fig. 5 and 6, when the first water-swelling sealing rod 4 and the first waterproof sealing gasket 2 are opened and waterproof, and fail, the external water seepage permeates into the first waterproof sealing gasket 2, the circuit arranged in the left and right waterproof sealing gaskets is changed from a disconnected state to a connected state, and the shunt generates current, so that the indicator light a16 flickers or shines to warn that external water seepage has leaked out of the first defense line, at the moment, grouting can be performed to the surface grouting hole 7 through the grouting port a10, plugging of the outer surface is performed along the position of the leakage pipe seam, grouting can be performed to the first pipe seam grouting hole 8 through the grouting port b11, and plugging and repairing are performed to the opening part of the pipe seam near the outer side; when the pipe joint is further opened, the second water-swelling water stop strip 5 and the second waterproof sealing gasket 3 are opened to prevent water failure, circuits in the left waterproof sealing gasket and the right waterproof sealing gasket of the second waterproof structure are changed from an off state to an on state, the branch generates current, the indicator light b17 is enabled to flicker or shine to warn that external seepage water has leaked through the second defense line, grouting can be performed on the second pipe joint grouting hole 9 through the grouting port c12, and the opening part close to the inner side pipe joint is plugged and repaired.
The construction method of the segment waterproof structure for the pipe seam opening comprises the following steps:
1) and (3) manufacturing a duct piece 1: the method comprises the following steps that before a duct piece 1 is poured, a grouting main pipe 13, a grouting branch pipe 14 and a weak current circuit line 15 are laid at preset positions in advance, binding and fixing are carried out by using steel wires, a certain length is reserved at each port of the grouting main pipe 13 and the weak current circuit line 15 for later use, pore passages of a surface grouting hole 7, a first pipe seam grouting hole 8 and a second grouting hole 9 are reserved at the positions of grouting holes in advance through short thin plastic pipes, and after fixing and checking are finished, concrete is poured and cured and formed;
2) sticking a sealing gasket and a water stop strip: before the duct piece 1 is installed, the surface of the duct piece 1 is cleaned and dried, a first water-swelling water stop strip 4, a first waterproof sealing gasket 2, a second water-swelling water stop strip 5 and a second waterproof sealing gasket 3 are sequentially adhered to the side wall of each side of the periphery in a circumferential direction from outside to inside after the surface is clean, meanwhile, a thin needle is used for enabling a port 15 of a weak current circuit wire to penetrate through the waterproof sealing gasket and be fixed on the outer surface, and then the sealing gasket and the water stop strips are completely adhered to corresponding circumferential grooves;
3) assembling the duct piece 1: before the segment 1 is assembled, firstly, cotton wool is stuffed into the surface grouting holes 7 of the segment 1 to prevent soil from being extruded into and blocking the surface grouting holes 7 in the installation process, and then the assembling process of the segment 1 is completed;
4) installation of a grouting opening: after the segment 1 is installed, installing corresponding grouting ports a10, b11, c12 and caulking materials 6 in the tunnel, and then connecting an indicator lamp a16, an indicator lamp b17 and an external battery 18 by using a reserved weak current circuit wire 15 and fixing;
5) and (3) later-stage use: when water leakage occurs to a pipe joint due to the fact that the pipe joint is opened in the tunnel operation process, if an indicator lamp a16 at a certain pipe joint flickers or shines, it is indicated that the water leakage of the pipe joint has penetrated into the first waterproof sealing gasket 2, grouting plugging can be performed to the corresponding surface grouting hole 7 through the grouting port a10 at the corresponding pipe joint inside the tunnel, and grouting water plugging repair can be performed to the first pipe joint grouting hole 8 at the corresponding position through the grouting port b 11; if the indicator light b17 flickers or shines, it indicates that the water seepage from the pipe joint has penetrated into the second waterproof sealing gasket 3, and the grouting and water plugging repair can be performed to the second pipe joint grouting hole 9 at the corresponding position through the grouting port c12 at the corresponding pipe joint inside the tunnel.
Claims (7)
1. The utility model provides a to open section of jurisdiction waterproof construction of tube slot which characterized in that: the waterproof sealing device comprises a duct piece (1), a first waterproof sealing gasket (2), a second waterproof sealing gasket (3), a first water-swelling water stop strip (4), a second water-swelling water stop strip (5), a caulking material (6), a surface grouting hole (7), a first pipe seam grouting hole (8), a second pipe seam grouting hole (9), a grouting opening, a grouting main pipe (13), a grouting branch pipe (14), a weak current circuit line (15), an indicator lamp a (16), an indicator lamp b (17) and an external battery (18); the first water-swelling water stop strip (4), the first waterproof sealing gasket (2), the second water-swelling water stop strip (5), the second waterproof sealing gasket (3) and the caulking material (6) are sequentially arranged at the periphery of the duct piece (1) from outside to inside and are respectively adhered to the corresponding annular grooves; the first water-swelling water stop strip (4) is arranged close to the first waterproof sealing gasket (2), the second water-swelling water stop strip (5) is arranged close to the second waterproof sealing gasket (3), and the caulking material (6) is arranged at the port of the inner surface of the pipe joint; a first pipe joint grouting hole (8) is arranged at the central position between the first waterproof sealing gasket (2) and the second water-swelling water stop bar (5), a second pipe joint grouting hole (9) is arranged at the central position between the second waterproof sealing gasket (3) and the caulking material (6), and a circle of surface grouting holes (7) are arranged along the circumferential direction of the outer surface of each pipe piece (1); each grouting hole is directly communicated with a grouting branch pipe (14) in the duct piece, the grouting branch pipes (14) on different sides of different layers are mutually independent and are respectively connected with a corresponding grouting main pipe (13), and the grouting main pipes (13) are connected with grouting ports corresponding to the inner wall of the duct piece (1); the utility model discloses a waterproof sealing structure, including section of jurisdiction (1) inside weak current circuit line (15) that sets up, weak current circuit line (15) adopt two shunts parallelly connected modes to connect, lean on the outside to connect gradually first waterproof sealing pad (2) and pilot lamp a (16) along separate routes, lean on the inboard to connect gradually second waterproof sealing pad (3) and pilot lamp b (17) along separate routes, weak current circuit line (15) trunk circuit is installed at section of jurisdiction (1) inner wall to connect external battery (18).
2. The waterproof structure of a segment for pipe seam opening according to claim 1, characterized in that: the slip casting mouth sets up at section of jurisdiction (1) inner wall, including slip casting mouth a (10), slip casting mouth b (11) and slip casting mouth c (12), corresponding surface grouting hole (7) are connected through slip casting main pipe (13) and slip casting branch pipe (14) in slip casting mouth a (10), corresponding first pipe joint grouting hole (8) are connected through slip casting main pipe (13) and slip casting branch pipe (14) in slip casting mouth b (11), corresponding second pipe joint grouting hole (9) are connected through slip casting main pipe (13) and slip casting branch pipe (14) in slip casting mouth c (12), the slip casting main pipe (13) and the slip casting branch pipe (14) mutually independent of different positions.
3. The waterproof structure of a segment for pipe seam opening according to claim 1, characterized in that: the surface grouting holes (7), the first pipeline seam grouting holes (8) and the second pipeline seam grouting holes (9) are all connected to corresponding grouting branch pipes (14), each grouting branch pipe (14) is independently connected with a grouting main pipe (13) respectively, one end of each grouting main pipe (13) is connected with the corresponding grouting branch pipe (14), and the other end of each grouting main pipe (13) is connected with a grouting opening corresponding to the inner wall of the corresponding pipeline piece (1).
4. The waterproof structure of a segment for pipe seam opening according to claim 1, characterized in that: the most pre-buried inside section of jurisdiction (1) of light current circuit line (15), pre-buried circuit joint in controlling two sealed pads staggers from top to bottom to the certain distance setting in interval, the trunk line setting of light current circuit line (15) is at section of jurisdiction (1) inner wall, and connects external battery (18).
5. The waterproof structure of a segment for pipe seam opening according to claim 1, characterized in that: first waterproof sealing pad (2), second way waterproof sealing pad (3), first way water swelling sealing rod (4) and second way water swelling sealing rod (5) are all arranged in succession along each section of jurisdiction (1) hoop all around to paste in the recess of corresponding shape.
6. The waterproof structure of a segment for pipe seam opening according to claim 1, characterized in that: grouting branch pipe (14) all set up alone in every side of section of jurisdiction, set up the direction and be on a parallel with this lateral wall, and grouting branch pipe (14) of indulging the seam face are the linear type, and grouting branch pipe (14) of circumferential weld face are arc, and the radian is the same with section of jurisdiction (1) radian.
7. The waterproof structure of a segment for pipe seam opening according to claim 1, characterized in that: the surface grouting holes (7) are annularly arranged on the outer surface of the pipe piece (1); the first pipe seam grouting hole (8) is formed in the position, close to the outer side, of the pipe seam, and each side wall is provided with a row and is mutually independent; the second pipeline seam grouting holes (9) are arranged at positions close to the inner sides of the pipeline seams, and each side wall is arranged in a row and is mutually independent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020122520.0U CN211666741U (en) | 2020-01-20 | 2020-01-20 | Section of jurisdiction waterproof construction to tube slot is opened |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020122520.0U CN211666741U (en) | 2020-01-20 | 2020-01-20 | Section of jurisdiction waterproof construction to tube slot is opened |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360517A (en) * | 2020-10-16 | 2021-02-12 | 中铁十四局集团有限公司 | Tunnel lining pipe sheet ring, construction method and tunnel lining |
| CN115949438A (en) * | 2023-03-15 | 2023-04-11 | 中铁第六勘察设计院集团有限公司 | Ultrahigh water pressure shield segment joint structure and waterproof method |
| CN116337369A (en) * | 2023-05-23 | 2023-06-27 | 以梦为马(沈阳)科技有限公司 | Water leakage detection device for watertight cabin of underwater robot |
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2020
- 2020-01-20 CN CN202020122520.0U patent/CN211666741U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360517A (en) * | 2020-10-16 | 2021-02-12 | 中铁十四局集团有限公司 | Tunnel lining pipe sheet ring, construction method and tunnel lining |
| CN112360517B (en) * | 2020-10-16 | 2021-08-03 | 中铁十四局集团有限公司 | Tunnel lining pipe sheet ring, construction method and tunnel lining |
| CN115949438A (en) * | 2023-03-15 | 2023-04-11 | 中铁第六勘察设计院集团有限公司 | Ultrahigh water pressure shield segment joint structure and waterproof method |
| CN115949438B (en) * | 2023-03-15 | 2023-05-05 | 中铁第六勘察设计院集团有限公司 | Super-high water pressure shield segment joint structure and waterproof method |
| CN116337369A (en) * | 2023-05-23 | 2023-06-27 | 以梦为马(沈阳)科技有限公司 | Water leakage detection device for watertight cabin of underwater robot |
| CN116337369B (en) * | 2023-05-23 | 2023-12-08 | 以梦为马(沈阳)科技有限公司 | Water leakage detection device for watertight cabin of underwater robot |
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