CN106149764B - A kind of precast assembly pipe gallery bell and spigot waterproof construction - Google Patents
A kind of precast assembly pipe gallery bell and spigot waterproof construction Download PDFInfo
- Publication number
- CN106149764B CN106149764B CN201610707908.5A CN201610707908A CN106149764B CN 106149764 B CN106149764 B CN 106149764B CN 201610707908 A CN201610707908 A CN 201610707908A CN 106149764 B CN106149764 B CN 106149764B
- Authority
- CN
- China
- Prior art keywords
- waterproof
- seam
- self
- pipe gallery
- spigot
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of precast assembly pipe gallery bell and spigot waterproof constructions, including the seam being made of piping lane socket and piping lane bellmouth, in the seam crossing, to seam inside on the outside of to seam, the water proof structure body being made of the II R self-adhesion adhesive waterproof tapes of EP of PCM waterproof rolls, 211 type two-component fluid sealants of JS, polyethylene the filling plate of 1.5 3.0mm thickness, EPDM wedge-type seals circle, water-swellable elastic rubbery body, polyethylene filling plate, 211 type two-component fluid sealants of JS, 1.5 2.0mm thickness is disposed with.This construction multi layer waterproof is set up defences, outside P CM self-adhered polymer modified bitumen waterproofing membranes in addition to having water-proof function, can also anti-plant roots and stems puncture, protect out-seam;Two-component fluid sealant filleting plays waterproof, antiseepage;Inside EPIIR self-adhesions adhesive waterproof tape can also play the role of protection against insect, damaged by rats in addition to waterproof, antiseepage, and main to play protection inseam, by above-mentioned multi layer waterproof, the water proof structure service life was long, up to 100 years.
Description
Technical field
The present invention relates to precast assembly pipe gallery, especially a kind of precast assembly pipe gallery socket waterproof construction.
Background technology
City integrated piping lane, also referred to as common trench, integrated pipe canal are one underground galleries of construction under town road, will
The various municipal pipelines such as electric power, communication, heating power and plumbing are included together, and set special access hole, feeding port etc.
Institution.City integrated piping lane unifies implementation management, saves pipeline itself independent structures and earth excavation, Ke Yiyou
Imitate intensive utilize space resources.
Various forms of underground pipe galleries, form of fracture have accommodated pipeline species, cost, repair and management
It is different.At present, the part underground pipe gallery for being completed or building, the overwhelming majority is using cast-type either in factory
It is built up using centrifuging or vibrating to pour by the way of an entirety is transported to construction site.All there are certain deficiencies for both approaches:
The cast in situs box culvert construct cycle is long, labor intensity is big, efficiency is low, is influenced greatly by weather, field condition, easy to ambient enviroment
It is also unstable to generate larger pollution, construction quality, it is of high cost;The whole box culvert of factorial praluction, piping lane molding time is long, work
Skill complex steps, construction cost is high, and transport, lifting are difficult, especially large-scale box culvert, and production equipment and hanging device input are huge
Greatly, and the box culvert difficulty of super large-scale has production equipment that can not also manufacture.
Therefore, precast assembly pipe gallery comes into being, and precast assembly pipe gallery is simple to manufacture, flat member transport,
Lifting is convenient, is factory produced, quality controllable, and synthesis is at low cost, can be big compared with concrete plate component groups dress construction period
It is big to shift to an earlier date, and road is had substantially no effect on, it is applied widely, it is economic and environment-friendly.Due to using fabricated construction, the specification of box culvert
Size can be fabricated onto oversize, be no longer limited by manufacturing and the external conditions such as transport, solve existing cast-in-place, integral prefabricated
Problem present in technology.But due to being that precast assembly is assembled sheet mounting means, the waterproof of laminated structure lap-joint is asked
Inscribe it is especially prominent, existing Pipe rack caused by vibrations and other reasons deformation when piping lane bell and spigot at easy leak and influence
Use function.
China Patent Publication No.:CN105525632A discloses a kind of prefabricated pipe gallery bell and spigot waterproof structure
It makes, which is designed between previous section bellmouth and latter tube coupling socket using 5 water proof structures.5 water proof structures
Including:Water expandable waterstop 1, water expandable waterstop 2 inject elastic water-proof material between twice water expandable waterstop
Material pours into elastic water-proofing material at 1 outer gap of water expandable waterstop, stickup waterproof roll at outer side seam.The technical solution
There is certain advance, but unfortunately entire seam crossing is all filled with waterproof material, and making is relatively cumbersome, and cost is slightly higher,
It is necessary to improve.
The content of the invention
Based on described above, the object of the present invention is to provide a kind of piping lane bell and spigot waterproof construction of new structure, to change
Into the deficiency of existing water proof structure, optimize its structure, make it with more novelty, practicability, economy.
The present invention is achieved through the following technical solutions:
A kind of precast assembly pipe gallery bell and spigot waterproof construction, including being connect by piping lane socket with what piping lane bellmouth was formed
Seam, innovation are, are provided in the seam crossing by PCM waterproof rolls, two-component fluid sealant, polyethylene filling
Plate, EPDM wedge-type seal circles, water-swellable elastic rubbery body, the water proof structure body that self-adhesion adhesive waterproof tape is formed.
Further, injected hole pipe is further included, the injected hole pipe is arranged on piping lane socket, opening direction direction pipe
The inside of corridor socket.
Further, the two-component fluid sealant is JS-211 type bi-component fluid sealants, and the self-adhesion adhesive waterproof tape is EP
II R type self-adhesion adhesive waterproof tapes.
Further, the EPDM wedge-type seals circle is one kind of lips wedge-type seal circle.
Further, the EPDM wedge-type seals circle is dehisced outside of the direction towards seam.
Further, in the seam crossing, until on the inside of seam, being disposed with by PCM waterproof rolls, double on the outside of seam
Component sealing gum, polyethylene filling plate, EPDM wedge-type seals circle, water-swellable elastic rubbery body, polyethylene filling
The water proof structure body that plate, two-component fluid sealant, II R self-adhesions adhesive waterproof tapes of EP are formed.
Further, the PCM waterproof rolls are arranged on the outside of seam, and the II R self-adhesion adhesive waterproof tapes of EP are arranged on
The inside of seam.
Further, the setting thickness of the PCM waterproof rolls is 1.5 ~ 3.0mm, the II R self-adhesion adhesive waterproof tapes of EP
Setting thickness is 1.5 ~ 2.0mm.
Compared with prior art, the beneficial effects of the present invention are:
1st, EPDM wedge-shaped seal rings are designed using double-lip, and wedge-shaped design installation resistance is small, can be effectively by single lip
Resistance share on 2 lips, be more favorable for installing, sealing effect is more long, and the time is longer;In addition, two seal lip
Design also solves the phenomenon that mobile rolling easily occurs when assembling a seal lip, lips wedge-type seal circle lip height
Size design be higher by 10-20% than the socket of reinforced concrete push pipe, effectively make use of caoutchouc elasticity sealing function, can
Play the role of height permanent seal.
2nd, this construction multi layer waterproof is set up defences, outside P CM self-adhered polymer modified bitumen waterproofing membranes in addition to having water-proof function,
Can also anti-plant roots and stems puncture, protect out-seam;Two-component fluid sealant filleting plays waterproof, antiseepage;Inside EPIIR self-adhesions are prevented
Glue band can also play the role of protection against insect, damaged by rats in addition to waterproof, antiseepage, main to play protection inseam, by above-mentioned
Multi layer waterproof, the water proof structure service life was long, up to 100 years.
Description of the drawings
Fig. 1 is schematic diagram of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention will be further described.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
As shown in Figure 1, the invention discloses a kind of precast assembly pipe gallery bell and spigot waterproof construction, following embodiments are given
Go out a preferred embodiment.
A kind of precast assembly pipe gallery bell and spigot waterproof construction, including being connect by piping lane socket with what piping lane bellmouth was formed
Seam, wherein, socket depth be 100-130mm, 1.5 ~ 2.5 degree of interface gyration.In the seam crossing, until to seam on the outside of seam
Inside is disposed with by PCM waterproof rolls 1, JS-211 type two-components fluid sealant 2, polyethylene filling plate 3, EPDM wedges
Shape sealing ring 4, water-swellable elastic rubbery body 5, polyethylene filling plate 3, two-component fluid sealant 2, II R self-adhesion marine glues of EP
The water proof structure body formed with 6;Wherein, the setting thickness of PCM waterproof rolls be 1.5 ~ 3.0mm, the II R self-adhesion marine glues of EP
The setting thickness of band is 1.5 ~ 2.0mm.
In the present embodiment, injected hole pipe 7 is further included, the injected hole pipe 7 is arranged on piping lane socket, opening direction
Towards the inside of piping lane socket.7 one side of injected hole pipe can do waterproof pressure testing at joints of segment and use, and test adhesive tape inside and outside tube coupling
Sealing performance;It on the other hand can be as the reserved passageway of later stage leak stopping.If there is consolidating settlement in piping lane service stage
It is excessive, after localized seepage may being caused, injecting glue can be carried out, slip casting encapsulation is remedied.
In the present embodiment, JS-211 types two-component fluid sealant is that my company changes on the basis of existing two-component fluid sealant
A kind of good fluid sealant, formula composition are:100 parts of liquid polysulfide rubber, 10 parts of poly- cave tackifying resin, nano-calcium carbonate hydrogen calcium 80
5 parts of part, Fen Chuo resins, 8 parts of polyethylene glycol, 1.5 parts of Molten sulphur, 4.5 parts of antioxidant 4010NA, 3.5 parts of antimycotic agent, liquid
Chlorinated paraffin(Fire retardant)4.5 part.
In the present embodiment, II R self-adhesions adhesive waterproof tapes 6 of EP are that my company improves on the basis of the skill of existing adhesive waterproof tape
A kind of adhesive waterproof tape, formula composition are:50 parts, No. 300 100 parts of ethylene propylene diene rubber, 120 parts of 235 carbon black, superfine talcum powder stones
It is 50 parts of wax oil, 1.5 parts of vulcanizing agent, 2.3 parts of accelerating agent, 3.5 parts of anti-aging agent, 2.5 parts of anti-mildew agent, 2.2 parts of antioxidant, fire-retardant
1.8 parts of agent, 100 parts of butyl rubber, white oil 30 parts of 10 parts of, Fen Chuo resins, 20 parts of polyvinyl alcohol.
This construction multi layer waterproof is set up defences, and outside P CM self-adhered polymer modified bitumen waterproofing membranes are in addition to having water-proof function, also
It can be punctured to prevent plant roots and stems, protect out-seam;Two-component fluid sealant filleting plays waterproof, antiseepage;Inside EPIIR self-adhesion waterproofs
Adhesive tape can also play the role of protection against insect, damaged by rats in addition to waterproof, antiseepage, main to play protection inseam, by above-mentioned
Multi layer waterproof, the water proof structure service life was long, up to 100 years.
Above description is explanation of the invention, is not limitation of the invention, and limited range of the present invention is referring to power
Profit requirement, in the case of without prejudice to basic idea of the present invention, the present invention can make the modification of other forms.
Claims (7)
1. a kind of precast assembly pipe gallery bell and spigot waterproof construction, including the seam being made of piping lane socket and piping lane bellmouth,
It is characterized in that, it is provided in the seam crossing by PCM waterproof rolls, two-component fluid sealant, polyethylene filling plate, EPDM
Wedge-type seal circle, water-swellable elastic rubbery body, the water proof structure body that self-adhesion adhesive waterproof tape is formed;The structure of the water proof structure body
, from seam outside to seam inside, it is PCM waterproof rolls, two-component fluid sealant, polyethylene filling successively into being sequentially
Plate, EPDM wedge-type seals circle, water-swellable elastic rubbery body, polyethylene filling plate, two-component fluid sealant, self-adhesion marine glue
Band.
2. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 1, which is characterized in that further include
Injected hole pipe, the injected hole pipe are arranged on piping lane socket, and opening direction is towards the inside of piping lane socket.
3. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 1, which is characterized in that described double
Component sealing gum is JS-211 type bi-component fluid sealants, and the self-adhesion adhesive waterproof tape is II R type self-adhesion adhesive waterproof tapes of EP.
4. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 3, which is characterized in that described
PCM waterproof rolls are arranged on the outside of seam, and the II R self-adhesion adhesive waterproof tapes of EP are arranged on the inside of seam.
5. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 4, which is characterized in that described
The setting thickness of PCM waterproof rolls is 1.5~3.0mm, the setting thickness of the II R self-adhesion adhesive waterproof tapes of EP for 1.5~
2.0mm。
6. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 1, which is characterized in that described
EPDM wedge-type seals circle is lips wedge-type seal circle.
7. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 1, which is characterized in that described
EPDM wedge-type seal circles are dehisced outside of the direction towards seam.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610707908.5A CN106149764B (en) | 2016-08-23 | 2016-08-23 | A kind of precast assembly pipe gallery bell and spigot waterproof construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610707908.5A CN106149764B (en) | 2016-08-23 | 2016-08-23 | A kind of precast assembly pipe gallery bell and spigot waterproof construction |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106149764A CN106149764A (en) | 2016-11-23 |
CN106149764B true CN106149764B (en) | 2018-06-01 |
Family
ID=57342583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610707908.5A Active CN106149764B (en) | 2016-08-23 | 2016-08-23 | A kind of precast assembly pipe gallery bell and spigot waterproof construction |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106149764B (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106836278A (en) * | 2017-01-22 | 2017-06-13 | 中交第公路勘察设计研究院有限公司 | The construction method of corrugated steel pipe gallery |
CN107386322A (en) * | 2017-07-31 | 2017-11-24 | 广西路桥工程集团有限公司 | A kind of prefabricated installation pipe gallery |
CN107859065A (en) * | 2017-11-03 | 2018-03-30 | 湖南大学 | A kind of ultra-high performance concrete precast assembly pipe gallery and construction method |
CN107859075A (en) * | 2017-12-14 | 2018-03-30 | 成都市第三建筑工程公司 | A kind of prefabricated pipe gallery joint waterproof structure and its construction method |
CN108193707B (en) * | 2017-12-22 | 2021-04-20 | 成都市市政工程设计研究院 | Utility tunnel structure |
CN108316347A (en) * | 2018-03-09 | 2018-07-24 | 中冶京诚工程技术有限公司 | Partition waterproof assembly type underground comprehensive pipe gallery and waterproof method thereof |
CN108411939A (en) * | 2018-03-16 | 2018-08-17 | 通号建设集团有限公司 | The spliced prefabricated pipe gallery of one kind and its construction method |
CN108385723A (en) * | 2018-03-26 | 2018-08-10 | 中国十七冶集团有限公司 | A kind of construction method of prefabricated piping lane deformation joint connection structure |
CN108867697A (en) * | 2018-08-31 | 2018-11-23 | 江苏金贸科技发展有限公司 | A kind of concrete prefabricated piping lane with antiseep preset structure |
CN108867699A (en) * | 2018-09-25 | 2018-11-23 | 四川沃特尔管业有限公司 | A kind of interface structure of pipe gallery |
CN110284519A (en) * | 2019-06-17 | 2019-09-27 | 湖北建科国际工程有限公司 | A kind of pipe gallery assembling structure and pipe gallery |
CN110978256B (en) * | 2019-12-20 | 2021-04-23 | 辽宁衍水水工水泥制品集团有限公司 | Method for vertically producing precast concrete box culvert |
CN112144578A (en) * | 2020-10-29 | 2020-12-29 | 中国十九冶集团有限公司 | Socket structure for prefabricated assembled pipe gallery and construction method |
CN112359880A (en) * | 2020-11-26 | 2021-02-12 | 中铁第四勘察设计院集团有限公司 | Assembled underground structure seam connection structure |
CN112726666A (en) * | 2020-12-30 | 2021-04-30 | 中国二十冶集团有限公司 | Pipe gallery and pipe gallery construction method |
CN112343084B (en) * | 2021-01-11 | 2021-05-07 | 沈阳建筑大学 | Waterproof underground pipe gallery |
CN114232691A (en) * | 2022-01-19 | 2022-03-25 | 上海市政工程设计研究总院(集团)有限公司 | Prefabricated inspection well and assembling method thereof |
CN114960750A (en) * | 2022-07-13 | 2022-08-30 | 中建二局第一建筑工程有限公司 | Anti-seismic waterproof prefabricated pipe gallery and construction method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20090132071A (en) * | 2008-06-20 | 2009-12-30 | 박정규 | Waterproof member, waterproof structure and construction method using the same |
CN105525632A (en) * | 2016-02-05 | 2016-04-27 | 青岛润国生态科技发展有限公司 | Waterproof structure for bellmouths and sockets of fabricated prefabricated composite pipe gallery |
CN105625471A (en) * | 2016-03-14 | 2016-06-01 | 青岛润国生态科技发展有限公司 | Prefabricated comprehensive pipe gallery |
CN105780808A (en) * | 2016-03-14 | 2016-07-20 | 青岛润国生态科技发展有限公司 | Assembly type precast comprehensive pipe gallery |
CN206034502U (en) * | 2016-08-23 | 2017-03-22 | 四川佳世特橡胶有限公司 | Prefabricated utility tunnel bell and spigot waterproof construction of assembling |
-
2016
- 2016-08-23 CN CN201610707908.5A patent/CN106149764B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20090132071A (en) * | 2008-06-20 | 2009-12-30 | 박정규 | Waterproof member, waterproof structure and construction method using the same |
CN105525632A (en) * | 2016-02-05 | 2016-04-27 | 青岛润国生态科技发展有限公司 | Waterproof structure for bellmouths and sockets of fabricated prefabricated composite pipe gallery |
CN105625471A (en) * | 2016-03-14 | 2016-06-01 | 青岛润国生态科技发展有限公司 | Prefabricated comprehensive pipe gallery |
CN105780808A (en) * | 2016-03-14 | 2016-07-20 | 青岛润国生态科技发展有限公司 | Assembly type precast comprehensive pipe gallery |
CN206034502U (en) * | 2016-08-23 | 2017-03-22 | 四川佳世特橡胶有限公司 | Prefabricated utility tunnel bell and spigot waterproof construction of assembling |
Also Published As
Publication number | Publication date |
---|---|
CN106149764A (en) | 2016-11-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106149764B (en) | A kind of precast assembly pipe gallery bell and spigot waterproof construction | |
CN206034502U (en) | Prefabricated utility tunnel bell and spigot waterproof construction of assembling | |
CN105064412B (en) | Gasbag-type open trench tunnel movement joint sealing structure | |
CN207700220U (en) | A kind of waterproof construction of pipe gallery outer wall | |
CN204530780U (en) | The water proof structure of underground-structure deformation joint | |
CN109026079B (en) | Tunnel joint waterproof structure and waterproof construction method | |
CN107989068A (en) | A kind of waterproof construction of pipe gallery outer wall | |
CN105756101A (en) | Building basement, subway and tunnel expansion joint waterproof maintenance and irrigation filling construction method | |
CN201731178U (en) | Rigid waterproof sleeve | |
CN109268031A (en) | Tube coupling can fill the plugging structure and construction method of bag type paste at service channel hole | |
CN204781016U (en) | Gasbag formula open trench tunnel movement joint seal structure | |
CN108756953B (en) | Waterproof and drainage system with secondary lining shield tunnel | |
CN204266170U (en) | A kind of dam foundation gallery syndeton | |
CN206973069U (en) | A kind of waterproof wall bushing | |
CN206971581U (en) | A kind of water-proofing treatment system of joint of plate perforating pipe position | |
CN104404919A (en) | Dam foundation corridor and bank slope bedrock connecting structure | |
CN211312769U (en) | Connecting member of plastic pipe and concrete prefabricated inspection well | |
CN209397743U (en) | New-old concrete works intersection stitches waterproof construction | |
CN207633358U (en) | A kind of prefabricated assembled pipe gallery jointing construction | |
CN110953416A (en) | Pipe joint sealing method for socket type reinforced concrete drain pipe | |
CN207003602U (en) | Urban discharging pipeline anti-leakage structure | |
CN103696407A (en) | Assembly-type concrete water saving groove | |
CN207619951U (en) | Structure for improving external pressure resistance stability of pressure steel pipe | |
CN106836462A (en) | Basement extends out the processing method and waterproof construction of structure construction seam | |
CN203924150U (en) | EPR deformation joint is repaired water-stopping structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |