CN112727496B - Building shield constructs section of jurisdiction - Google Patents
Building shield constructs section of jurisdiction Download PDFInfo
- Publication number
- CN112727496B CN112727496B CN202011623797.2A CN202011623797A CN112727496B CN 112727496 B CN112727496 B CN 112727496B CN 202011623797 A CN202011623797 A CN 202011623797A CN 112727496 B CN112727496 B CN 112727496B
- Authority
- CN
- China
- Prior art keywords
- adsorption
- fixedly connected
- wall
- air
- jurisdiction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000001179 sorption measurement Methods 0.000 claims description 115
- 238000009434 installation Methods 0.000 claims description 30
- 238000010276 construction Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 210000003437 trachea Anatomy 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a building shield segment, which comprises a segment body, wherein one end of the segment body is provided with a mounting chute, one end of the segment body, which is far away from the mounting chute, is fixedly connected with a limiting slide bar, the top of the limiting slide bar is fixedly connected with a limiting ball, one end, which is close to the mounting chute, inside the segment body is fixedly connected with a fixing device, one end, which is close to the limiting slide bar, of the inner wall of the segment body is fixedly connected with a reinforcing bar, the shape and the size of the limiting slide bar are matched with those of the inner wall of the mounting chute, the limiting ball and the fixing device are provided with a plurality of groups, and two ends of one side, which is far away from the segment body, of the limiting slide bar are fixedly connected with arc-shaped sealing blocks. This building shield constructs section of jurisdiction can strengthen the anti bending capability of section of jurisdiction junction, conveniently improves the intensity of section of jurisdiction, can improve the stability of junction, uses safe and reliable, and adaptability is good, convenient to use.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a building shield segment.
Background
In modern construction engineering, there are several construction methods in the engineering involving tunnel excavation, including open excavation method, and hidden excavation method, wherein the shield method in the hidden excavation method is a fully mechanized construction method, and is widely applied to tunnel construction, for example: railway tunnels, highway tunnels, submarine tunnels, underground railways, and the like.
The shield segment used in the existing shield engineering is poor in stability of a joint and easy to fall off when being spliced, and the strength of the spliced part is poor and the capability of resisting longitudinal and transverse shearing forces is poor.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a building shield segment, which solves the problems that the stability of the joint is poor, the joint is easy to fall off, the strength of the joint is poor, and the capability of resisting longitudinal and transverse shearing forces is poor in the conventional shield segment used in shield engineering.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a building shield constructs section of jurisdiction, includes the section of jurisdiction body, installation spout has been seted up to section of jurisdiction body one end, the one end fixedly connected with spacing draw runner of section of jurisdiction body keeping away from the installation spout, spacing ball of spacing draw runner top fixedly connected with, the one end fixedly connected with fixing device that is close to the installation spout in the section of jurisdiction body, the one end fixedly connected with reinforcing bar that is close to spacing draw runner of section of jurisdiction body inner wall, can insert the spacing draw runner of section of jurisdiction body one end in the installation spout on another group of section of jurisdiction body inside during the use, then through fixing device fixing, the anti bending capacity of section of jurisdiction junction can be strengthened in installation spout and spacing draw runner cooperation, conveniently improves the intensity of section of jurisdiction;
the fixing device comprises a hydraulic pipe, a first piston head is slidably connected to one end of the inner wall of the hydraulic pipe, a push rod is fixedly connected to one side of the first piston head, one end of the push rod, which is far away from the first piston head, penetrates through the hydraulic pipe and is fixedly connected with an adsorption device, balls are slidably connected between the inner wall of the hydraulic pipe and the outer wall of the push rod, an air passage is formed in the push rod, an air pipe is slidably connected to the inner wall of the air passage, one end of the air pipe, which is far away from the adsorption device, penetrates through the first piston head and extends into the hydraulic pipe, the part, which is located in the hydraulic pipe, is fixedly connected with a second piston head through a supporting rod, one end of the air pipe, which is close to the adsorption device, is fixedly connected with a second piston head, an air hole, which is communicated with the air pipe, is formed in one side of the second piston head, is fixedly connected with a supporting rod, the top and the bottom of the hydraulic pipe, when the limiting sliding rod drives the limiting ball to be inserted into the installation sliding groove, hydraulic oil is pushed to move the first piston head, the push rod is driven by the first piston rod to move, the adsorption device is driven by the limiting ball, and then the air pipe and the air pressure inside the air pipe is reduced to drive the adsorption device to the limiting ball to be adsorbed on the limiting ball through the air pipe, and the air pipe is prevented from sliding inside the limiting ball, and the sliding device.
Preferably, the hydraulic pipe is fixedly connected with the inner wall of the pipe piece body through a stay bar, one end of the air passage, which is far away from the first piston head, is communicated with the adsorption device, and the balls are provided with a plurality of groups.
Preferably, one end of the hydraulic pipe far away from the push rod and one end of the air pipe far away from the second piston head penetrate through the duct piece body and are provided with electronic valves, and one side of the adsorption device far away from the air pipe extends to the inside of the installation sliding groove.
Preferably, the shape and the size of the limiting slide bar are matched with those of the inner wall of the installation chute, and the limiting balls and the fixing devices are provided with a plurality of groups.
Preferably, the adsorption equipment includes first adsorption disk, first adsorption disk outside fixedly connected with second adsorption disk, the adsorption tank has been seted up to first adsorption disk inner wall, the connection air flue has all been seted up to the adsorption tank both sides, the adsorption air flue has been seted up to the part that first adsorption disk inner wall is located the attached groove bottom, first adsorption disk bottom intercommunication has the adsorption trachea, and the adsorption trachea is taken out adsorption tank and the inside gas of connection air flue through the adsorption air flue during the gas extraction, makes first adsorption disk and second adsorption disk hug closely on spacing ball surface, and the convenience is fixed spacing ball inside the installation spout, and spacing ball and adsorption equipment all are provided with solitary multiunit, do not influence overall stability when single junction gas leakage, use safe and reliable more.
Preferably, the first adsorption disc and the second adsorption disc are made of silicone rubber materials, the thickness of the second adsorption disc is 1.5 times that of the first adsorption disc, the second adsorption disc is thicker than the first adsorption disc, the first adsorption disc can deform and be tightly attached to the limiting ball when in air suction, and the air in the second adsorption disc can be firstly pumped out, and then the air in the adsorption disc is pumped out, so that incomplete air exhaust in the adsorption disc at a distance is avoided, and the adsorption is more stable.
Preferably, the adsorption groove and the connecting air passage are provided with a plurality of groups and uniformly distributed on the inner wall of the first adsorption disk, two sides of the connecting air passage are communicated with the adjacent adsorption groove, two ends of the adsorption air passage are respectively communicated with the adsorption groove and the adsorption air pipe, and one end of the adsorption air pipe, which is far away from the first adsorption disk, is communicated with the air passage.
Preferably, the limiting slide bar is far away from the arc-shaped sealing blocks which are fixedly connected with two ends of one side of the duct piece body, and the shape and the size of the arc-shaped sealing blocks are matched with the shape and the size of two ends of the inner wall of the installation chute.
(III) beneficial effects
The invention provides a construction shield segment. The beneficial effects are as follows:
(1) This building shield constructs section of jurisdiction is provided with installation spout and spacing draw runner, can insert the spacing draw runner of section of jurisdiction body one end inside the installation spout on another group of section of jurisdiction body, then fixed through fixing device, and the anti bending capability of section of jurisdiction junction can be strengthened in installation spout and spacing draw runner cooperation, conveniently improves the intensity of section of jurisdiction.
(2) This building shield constructs section of jurisdiction is provided with fixing device, and accessible fixing device is together fixed inside the installation spout with spacing sliding strip of spacing ball intercommunication, avoids spacing sliding strip to take place to slide inside the installation spout, can improve the stability of junction, uses safe and reliable.
(3) This building shield constructs section of jurisdiction is provided with hydraulic pipe and trachea to with the trachea integration inside the hydraulic pipe, reducible fixing device's occupation space can adapt to the less shield of size section of jurisdiction and use, and adaptability is better.
(4) The building shield segment is provided with the supporting rods and the reinforcing strips, the supporting rods and the hydraulic pipes can be combined to provide support for the shield segment, and the reinforcing strips are matched to improve the overall strength of the shield segment.
(5) This building shield constructs section of jurisdiction is provided with adsorption equipment, makes first adsorption disk and second adsorption disk hug closely on spacing ball surface, and the convenience is fixed spacing ball inside the installation spout, and spacing ball and adsorption equipment all are provided with solitary multiunit, do not influence overall stability when single junction leaks gas, use safe and reliable more.
(6) This building shield constructs section of jurisdiction is provided with first adsorption disk and second adsorption disk to the second adsorption disk is thicker than first adsorption disk, can be when bleeding that first adsorption disk produces deformation and paste tightly on spacing ball, and can take out the inside gas of second adsorption disk earlier, take out the inside gas of adsorption disk again, avoid the inside gas discharge of adsorption disk at a distance not thoroughly, adsorb more stably.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the present invention;
FIG. 3 is a schematic view of the structure of the portion A of the present invention;
FIG. 4 is a schematic view of a fixing device according to the present invention;
FIG. 5 is a schematic diagram of the adsorption apparatus according to the present invention.
In the figure: 1. segment body, 2, installation spout, 3, spacing draw runner, 4, spacing ball, 5, fixing device, 51, hydraulic pressure pipe, 52, first piston head, 53, push rod, 54, adsorption equipment, 541, first adsorption disk, 542, second adsorption disk, 543, adsorption groove, 544, connection air flue, 545, adsorption air flue, 546, adsorption air flue, 55, ball, 56, air flue, 57, air flue, 58, branch, 59, second piston head, 510, air vent, 511, stay bar, 6, reinforcing bar, 7, arc sealing block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a building shield constructs section of jurisdiction, including section of jurisdiction body 1, section of jurisdiction body 1 one end has been seted up and has been installed spout 2, section of jurisdiction body 1 is kept away from the one end fixedly connected with spacing draw runner 3 of installation spout 2, spacing draw runner 3 top fixedly connected with spacing ball 4, the one end fixedly connected with fixing device 5 that is close to installation spout 2 in section of jurisdiction body 1 inside, the one end fixedly connected with reinforcing bar 6 that is close to spacing draw runner 3 in section of jurisdiction body 1 inner wall, fixing device 5 includes hydraulic pipe 51, hydraulic pipe 51 inner wall one end sliding connection has first piston head 52, first piston head 52 one side fixedly connected with push rod 53, the one end that push rod 53 kept away from first piston head 52 runs through hydraulic pipe 51 and fixedly connected with adsorption device 54, sliding connection ball 55 between hydraulic pipe 51 inner wall and the push rod 53 outer wall, the inside has seted up air flue 56, air flue 56 inner wall sliding connection has air pipe 57, the one end that air pipe 57 kept away from adsorption device 54 runs through first piston head 52 and extends to hydraulic pipe 51 inside, the part that air pipe 57 is located hydraulic pipe 51 inside is through branch 58 and hydraulic pipe 51 inner wall fixedly connected with reinforcing bar 6, air pipe 57 is close to one end fixedly connected with second air pipe 59 that adsorption device 54, one side of air pipe 57 is close to piston head 59, one side of second air pipe 59 is equipped with air vent 59 and air vent 510, bottom 510 and bottom all are connected with top fixedly connected with top portion 510.
During the use, can insert the spacing draw runner 3 of section of jurisdiction body 1 one end inside the installation spout 2 on another group of section of jurisdiction body 1, then through fixing device 5 fixed, the anti bending capability of section of jurisdiction junction can be strengthened in installation spout 2 and spacing draw runner 3 cooperation, conveniently improve the intensity of section of jurisdiction, when spacing draw runner 3 drive spacing ball 4 insert installation spout 2 inside, pour into hydraulic oil into inside hydraulic pipe 51, hydraulic oil promotes first piston head 52 and removes, first piston head 52 drives push rod 53 and removes, push rod 53 drives adsorption equipment 54 and supports on spacing ball 4, then bleed through trachea 57, trachea 57 and the inside atmospheric pressure of air duct 56 diminish drive adsorption equipment 54 adsorb on spacing ball 4 can, can avoid spacing draw runner 3 to slide in installation spout 2 inside, can improve the stability of junction, safe and reliable use.
Embodiment two:
referring to fig. 1-5, the present invention provides a technical solution based on the first embodiment: the adsorption device 54 includes first adsorption plate 541, the second adsorption plate 542 of fixedly connected with in the outside of first adsorption plate 541, adsorption tank 543 has been seted up to first adsorption plate 541 inner wall, connect air flue 544 has all been seted up to adsorption tank 543 both sides, adsorption air flue 545 has been seted up to the part that first adsorption plate 541 inner wall is located the attached groove 543 bottom, first adsorption plate 541 bottom intercommunication has adsorption trachea 546, adsorption trachea 546 draws out the inside gas of adsorption tank 543 and connect air flue 544 through adsorption air flue 545 during the time of bleeding, make first adsorption plate 541 and second adsorption plate 542 hug closely at spacing ball 4 surface, conveniently fix spacing ball 4 inside installation spout 2, spacing ball 4 and adsorption device 54 all are provided with solitary multiunit, the overall stability is not influenced when single junction leaks gas, safe and reliable are used, and the thickness of second adsorption plate 542 is 1.5 times of first adsorption plate 541 thickness, can make first adsorption plate produce deformation and paste tightly on spacing ball 4 when bleeding, and can take out the inside gas of second adsorption plate 542 earlier, the inside gas of second adsorption plate 542 is taken out, the inside gas of the spacing plate 541 is more thoroughly avoided the inside the gas of the distance to be more stable.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a building shield constructs section of jurisdiction, includes section of jurisdiction body (1), its characterized in that, installation spout (2) has been seted up to section of jurisdiction body (1) one end, the one end fixedly connected with spacing draw runner (3) that installation spout (2) were kept away from to section of jurisdiction body (1), spacing draw runner (3) top fixedly connected with spacing ball (4), the one end fixedly connected with fixing device (5) that is close to installation spout (2) inside section of jurisdiction body (1), the one end fixedly connected with reinforcement strip (6) that the inner wall of section of jurisdiction body (1) is close to spacing draw runner (3);
the fixing device (5) comprises a hydraulic pipe (51), one end of the inner wall of the hydraulic pipe (51) is slidably connected with a first piston head (52), one side of the first piston head (52) is fixedly connected with a push rod (53), one end of the push rod (53), which is far away from the first piston head (52), penetrates through the hydraulic pipe (51) and is fixedly connected with an adsorption device (54), a ball (55) is slidably connected between the inner wall of the hydraulic pipe (51) and the outer wall of the push rod (53), an air passage (56) is formed in the push rod (53), the inner wall of the air passage (56) is slidably connected with an air pipe (57), one end, which is far away from the adsorption device (54), of the air pipe (57) penetrates through the first piston head (52) and extends into the hydraulic pipe (51), the part, which is located in the hydraulic pipe (51), is fixedly connected with the inner wall of the hydraulic pipe (51) through a supporting rod (58), one end, which is close to the adsorption device (54), of the air pipe (57), is fixedly connected with a second piston head (59), one side of the second piston head (59) is provided with an air hole (510), and the top part (511) is fixedly connected with the hydraulic pipe (511).
The adsorption device (54) comprises a first adsorption disc (541), a second adsorption disc (542) is fixedly connected to the outer side of the first adsorption disc (541), an adsorption groove (543) is formed in the inner wall of the first adsorption disc (541), connecting air passages (544) are formed in two sides of the adsorption groove (543), an adsorption air passage (545) is formed in the portion, located at the bottom of the auxiliary groove (543), of the inner wall of the first adsorption disc (541), and an adsorption air pipe (546) is communicated with the bottom of the first adsorption disc (541);
adsorption tank (543) and connection air flue (544) all are provided with a plurality of groups and evenly distributed at first adsorption disc (541) inner wall, connection air flue (544) both sides all communicate with adjacent adsorption tank (543), adsorption air flue (545) both ends communicate with adsorption tank (543) and adsorption air pipe (546) respectively.
2. The construction shield segment according to claim 1, wherein: the hydraulic pipe (51) is fixedly connected with the inner wall of the pipe piece body (1) through the stay bar (511), one end, away from the first piston head (52), of the air channel (56) is communicated with the adsorption device (54), and the balls (55) are provided with a plurality of groups.
3. The construction shield segment according to claim 1, wherein: one end of the hydraulic pipe (51) far away from the push rod (53) and one end of the air pipe (57) far away from the second piston head (59) penetrate through the duct piece body (1) and are provided with electronic valves, and one side of the adsorption device (54) far away from the air pipe (57) extends to the inside of the installation chute (2).
4. The construction shield segment according to claim 1, wherein: the shape and the size of the limiting sliding strip (3) are matched with those of the inner wall of the installation sliding groove (2), and a plurality of groups of limiting balls (4) and fixing devices (5) are arranged.
5. The construction shield segment according to claim 1, wherein: the first adsorption disc (541) and the second adsorption disc (542) are made of silicone rubber materials, and the thickness of the second adsorption disc (542) is 1.5 times that of the first adsorption disc (541).
6. The construction shield segment according to claim 1, wherein: the two ends of one side of the limiting slide bar (3) far away from the duct piece body (1) are fixedly connected with arc-shaped sealing blocks (7), and the shape and the size of the arc-shaped sealing blocks (7) are matched with those of the two ends of the inner wall of the installation chute (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011623797.2A CN112727496B (en) | 2020-12-31 | 2020-12-31 | Building shield constructs section of jurisdiction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011623797.2A CN112727496B (en) | 2020-12-31 | 2020-12-31 | Building shield constructs section of jurisdiction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112727496A CN112727496A (en) | 2021-04-30 |
| CN112727496B true CN112727496B (en) | 2023-12-19 |
Family
ID=75608833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011623797.2A Active CN112727496B (en) | 2020-12-31 | 2020-12-31 | Building shield constructs section of jurisdiction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112727496B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207278273U (en) * | 2017-10-19 | 2018-04-27 | 王敬春 | A kind of spacing tenon of shield duct piece lining cutting and shield duct piece lining cutting connection structure |
| CN207583383U (en) * | 2017-12-12 | 2018-07-06 | 郑茜月 | A kind of high shield duct piece of stability |
| CN208564565U (en) * | 2018-05-17 | 2019-03-01 | 佛山市南海南源水利水电勘测设计院有限公司 | Anti- internal water pressure composite shield section of jurisdiction |
| CN111236971A (en) * | 2020-01-19 | 2020-06-05 | 天津大学 | Air bag type duct piece for urban shield tunnel and operation method thereof |
| CN210798987U (en) * | 2019-09-12 | 2020-06-19 | 上海建工常州建亚建筑构件制品有限公司 | Prefabricated reinforced concrete segment |
-
2020
- 2020-12-31 CN CN202011623797.2A patent/CN112727496B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207278273U (en) * | 2017-10-19 | 2018-04-27 | 王敬春 | A kind of spacing tenon of shield duct piece lining cutting and shield duct piece lining cutting connection structure |
| CN207583383U (en) * | 2017-12-12 | 2018-07-06 | 郑茜月 | A kind of high shield duct piece of stability |
| CN208564565U (en) * | 2018-05-17 | 2019-03-01 | 佛山市南海南源水利水电勘测设计院有限公司 | Anti- internal water pressure composite shield section of jurisdiction |
| CN210798987U (en) * | 2019-09-12 | 2020-06-19 | 上海建工常州建亚建筑构件制品有限公司 | Prefabricated reinforced concrete segment |
| CN111236971A (en) * | 2020-01-19 | 2020-06-05 | 天津大学 | Air bag type duct piece for urban shield tunnel and operation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112727496A (en) | 2021-04-30 |
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Effective date of registration: 20231115 Address after: Room 301, Building 30, Tian'an Headquarters Center, No. 555 North Panyu Avenue, Donghuan Street, Panyu District, Guangzhou City, Guangdong Province, 510000 Applicant after: Zhongliu Dizhu (Guangzhou) New Materials Co.,Ltd. Address before: 510000 room A-8, No.9, zhongsan section, Shiguang Road, Zhongcun street, Panyu District, Guangzhou City, Guangdong Province Applicant before: Li Yanyan |
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