CN106759524B - Prefabricated assembly type comprehensive pipe gallery joint water stop structure and construction method - Google Patents
Prefabricated assembly type comprehensive pipe gallery joint water stop structure and construction method Download PDFInfo
- Publication number
- CN106759524B CN106759524B CN201710145408.1A CN201710145408A CN106759524B CN 106759524 B CN106759524 B CN 106759524B CN 201710145408 A CN201710145408 A CN 201710145408A CN 106759524 B CN106759524 B CN 106759524B
- Authority
- CN
- China
- Prior art keywords
- sealing
- water stop
- elastic water
- clamp
- prefabricated
- 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
Images
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
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical & Material Sciences (AREA)
- Lining And Supports For Tunnels (AREA)
- Building Environments (AREA)
Abstract
The utility model provides a prefabricated assembled utility tunnel connects stagnant water structure, includes two adjacent sections prefabricated pipe galleries and stagnant water sealing member, its characterized in that: a plurality of grooves are prefabricated on the vertical corresponding sealed face separately of adjacent piping lane respectively, and the recess on two sealed faces cooperates simultaneously and is equipped with elasticity stagnant water sealing member, at the upper surface overlap joint closing plate of adjacent piping lane junction, and adjacent prefabricated piping lane is connected into whole through elasticity stagnant water sealing member and closing plate. The invention has the beneficial effects that: the pipe gallery connector water stopping structure provided by the invention is connected with the elastic water stopping clamp through the mutually matched adjacent pipe galleries, so that the overall performance of the integrated structure is improved. Through the regional blockking of multichannel angular form to and the outer water-swelling rubber layer of meeting of water inflation of elasticity stagnant water clamp, blocked the inflow route of water, inside water can't get into the piping lane, improved the waterproof performance of piping lane greatly, made the security and the durability of piping lane structure obtain the assurance. During maintenance, the elastic water stop clamp is only required to be detached, and the new component is replaced, so that the large-area excavation and repair of the waterproof structure are avoided, time and labor are saved, and the cost is saved.
Description
Technical Field
The invention belongs to the field of constructional engineering, and particularly relates to a prefabricated assembly type comprehensive pipe gallery joint water stop structure and a construction method.
Background
In recent years, the assembled comprehensive pipe gallery is developed rapidly, compared with the existing open cut cast-in-place technology, the pipe gallery structure taking the prefabricated pipe fitting as the main body is produced by factory prefabricated parts, is not influenced by factors such as natural environment and the like, fully ensures the quality of the prefabricated parts, can improve the field construction efficiency, is energy-saving and environment-friendly, and reduces the construction cost. However, the underground environment is complex and unpredictable, the assembled pipe gallery is located in the pipe gallery for a long time and is continuously corroded by underground water, various engineering lines such as electric power and the like arranged in the pipe gallery have extremely high requirements on water resistance, any leakage is not allowed, and the service life of the pipe gallery is closely related to the water resistance quality. And joint waterproof performance influences the structure suitability and the durability of prefabricated assembled utility tunnel in the life cycle in-process key.
At present, the prefabricated assembled comprehensive pipe gallery joint is subjected to waterproof treatment when the pipe gallery is assembled and constructed, and a double-rubber-ring sealing waterproof structural form of socket working surface sealing and end surface sealing is adopted. Different from the above-ground building, when waterproof material ageing damage, or other irresistible forces cause waterproof construction to go wrong, if the excavation of large tracts of land, do assembled piping lane's waterproof work again, then the construction degree of difficulty is huge, and is consuming time hard, and the cost is very high moreover. Therefore, only the waterproof maintenance can be repeatedly carried out, but the problem of water seepage of the pipe gallery cannot be substantially solved.
Disclosure of Invention
The invention aims to make up the defects of the existing waterproof structure at the joint of the prefabricated assembly type comprehensive pipe gallery, and provides a detachable water stopping structure and a construction method which are high in construction efficiency, good in waterproof effect, economical and applicable, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides a prefabricated assembly type comprehensive pipe gallery joint water stop structure, which comprises two adjacent prefabricated pipe galleries and a water stop sealing element, and is characterized in that: a plurality of grooves are prefabricated on the vertical corresponding sealed face separately of adjacent piping lane respectively, and the recess on two sealed faces cooperates simultaneously and is equipped with elasticity stagnant water sealing member, at the upper surface overlap joint closing plate of adjacent piping lane junction, and adjacent prefabricated piping lane is connected into whole through elasticity stagnant water sealing member and closing plate.
The elastic water stop sealing piece is an elastic water stop clamp, the upper part of the elastic water stop clamp is provided with two outward-extending flat plates, the middle part of the elastic water stop clamp is an angular sealing bulge, and the lower part of the elastic water stop clamp is a conical part; and the vertical corresponding sealing surfaces of the adjacent pipe galleries are respectively prefabricated with an angular sealing groove matched with the elastic water stop clamp.
The upper surface of the adjacent pipe gallery is processed with a stepped groove which is divided into a deep groove and a shallow groove, two sides of the flat plate at the upper part of the elastic water stop clamp are bent parts, the bent parts are in sealing fit with the deep groove, and two sides of the sealing plate are also bent parts and are in sealing fit with the shallow groove.
The opening angle of each angular sealing groove of the pipe gallery and the angle of each angular sealing bulge in the middle of the elastic water stop clamp are different, and the angles are decreased progressively from the water facing side to the upper angle.
Elastic water stop clamp outside surface scribbles water swelling rubber layer with pipe gallery recess cooperation position for elastic water stop clamp closely coincide with pipe gallery recess surface.
The flat plate is provided with an extrusion steel bar, so that the extrusion equipment can operate the elastic water stop clamp to stretch into the pipe gallery for sealing.
A construction method of a prefabricated assembly type comprehensive pipe gallery joint water stop structure is characterized by comprising the following steps:
1. respectively prefabricating two angular sealing grooves on the vertical corresponding sealing surfaces of the adjacent pipe galleries, wherein the opening angles of the grooves are gradually decreased from the upstream surface to the upstream surface, and prefabricating a step-shaped groove on the upper surface of the pipe gallery;
2. determining the size of the elastic water stop clamp according to the opened groove;
3. processing a prefabricated pipe gallery segment with an angular sealing groove and an elastic water stop clamp in a factory, wherein the upper surface of the elastic water stop clamp is provided with two extruded steel bars;
4. after the on-site pipe gallery is accurately hoisted and positioned, removing sundries in the groove, coating a layer of anti-rust paint on the inner surface and the outer surface of the elastic water stop clamp, and adhering a layer of water-swellable rubber layer on the water-facing side;
5. extruding the extruded steel bars on the upper surface of the elastic water stop clamp by using extrusion equipment, and placing the elastic water stop clamp in the angular grooves of two adjacent prefabricated pipe galleries to enable the elastic water stop clamp to be perfectly matched with the pipe gallery grooves;
6. the inner cavity of the elastic water stop clamp is filled with factice, and a sealing plate is placed on the upper surface of the elastic water stop clamp, so that the surface of the sealing plate and the surface of the pipe gallery are on the same horizontal plane.
The invention has the beneficial effects that: the pipe gallery connector water stopping structure provided by the invention is connected with the elastic water stopping clamp through the mutually matched adjacent pipe galleries, so that the overall performance of the integrated structure is improved. Through the regional blockking of multichannel triangle-shaped to and the outer water-swelling rubber layer of meeting of water inflation of elasticity stagnant water clamp, blocked the inflow route of water, inside water can't get into the piping lane, improved the waterproof performance of piping lane greatly, made the security and the durability of piping lane structure obtain the assurance. Only need during the maintenance to unload the elasticity stagnant water clamp, change new component can, avoided the large tracts of land excavation to restore waterproof structure, labour saving and time saving practices thrift the cost.
Drawings
FIG. 1 is a schematic view of the grooves of the segments of the prefabricated pipe gallery;
FIG. 2 is a schematic view of an elastic water stop clip;
fig. 3 is a schematic view of the assembly structure of the present invention.
In the figure: 1 is a deep groove; 2 is a shallow groove; 3, a pipe gallery first section angle-shaped sealing groove; 4, a pipe gallery second section angle-shaped sealing groove; 5, the middle part of the elastic water stop clamp is provided with an angular sealing bulge; 6 is an extruded steel strip; 7 is a flat plate with the upper part of the elastic water stop clamp extending outwards; 8 is a water-swelling rubber layer; 9 is an antirust layer; 10 is the lower conical part of the elastic water stop clamp; 11 is ointment; 12 is an elastic water stop clamp bending part; 13 is a first matching surface of the elastic water stop clamp and the pipe gallery; 14 is a second matching surface of the elastic water stop clamp and the pipe gallery; and 15 is a sealing plate.
Detailed Description
Referring to fig. 1, the upper surfaces of adjacent pipe galleries are processed with stepped grooves, including deep grooves 1 and shallow grooves 2, and a first section of angular sealing groove 3 and a second section of angular sealing groove 4 are respectively prefabricated on the vertical corresponding respective sealing surfaces of the adjacent two pipe galleries.
Referring to fig. 2, the upper part of the elastic water stop clamp is provided with two extended flat plates 7, an extruded steel strip 6 is arranged on the flat plates, the middle part of the elastic water stop clamp is provided with two sections of angular sealing bulges 5, the lower part of the elastic water stop clamp is provided with a conical part 10, the inner surface and the outer surface of the water stop clamp are coated with anti-rust paint to form an anti-rust layer 9, and a water swelling rubber layer 8 is adhered to the water facing side.
Referring to fig. 1, fig. 2 and fig. 3, extrusion equipment is placed and is extruded in extrusion billet 6 department, put into the seam with the elasticity stagnant water clamp, treat that the elasticity stagnant water clamp is in good match with the first fitting surface 13 and the second fitting surface 14 of piping lane, elasticity stagnant water clamp bending part 12 and the accurate back of fixing a position of piping lane upper surface deep trouth 1, slow off-load extrusion equipment, make the whole perfect combination with the piping lane seam of elasticity stagnant water clamp, and fill in oleamen 11 in stagnant water clamp inside, place sealing plate 15 above the elasticity stagnant water clamp and make the bending part of sealing plate sealed with the cooperation of shallow slot 2 at last.
The construction method comprises the following steps:
1. according to the wall thickness of actual engineering condition and piping lane, design two sections angular form seal groove position and size, sealed recess opening angle from the upstream face up steadily decrease in proper order, when the piping lane takes place the seepage, through the shelves of multichannel angular form region stop, inside water can't get into the piping lane. The number of the grooves can be properly increased according to engineering requirements, the water seepage path is prolonged, the waterproof standard is achieved, and then a stepped groove is designed on the upper surface of the pipe gallery;
2. determining the shape and size of the elastic water stop clamp according to the opened angle-shaped sealing groove;
3. the prefabricated pipe gallery segment with the groove and the elastic water stop clamp are processed in a factory, and the upper surface of the elastic water stop clamp is provided with two extrusion steel bars, so that the elastic water stop clamp is convenient to extrude during construction;
4. after the on-site pipe gallery is accurately hoisted and positioned, removing sundries in the groove, coating a layer of anti-rust paint on the inner surface and the outer surface of the elastic water stop clamp steel plate, and adhering a layer of water-swelling rubber layer on the water-facing side;
5. extruding the extruded steel bar on the upper surface of the elastic water stop clamp by using extrusion equipment, and placing the elastic water stop clamp in the grooves of two adjacent prefabricated pipe galleries to enable the elastic water stop clamp to be perfectly matched with the grooves of the pipe galleries;
6. the elastic water stop clamp is internally filled with factice, and a sealing plate is placed on the upper surface of the elastic water stop clamp, so that the surface of the sealing plate and the surface of the pipe gallery are on the same horizontal plane.
The elastic water stop clamp is damaged, the elastic water stop clamp can be taken out by adopting extrusion equipment, and the new elastic water stop clamp can be re-installed in the groove by adopting the steps, so that the construction is simple, economic and environment-friendly, and the waterproofness of the pipe gallery is ensured to the maximum extent.
Claims (5)
1. The utility model provides a prefabricated assembled utility tunnel connects stagnant water structure, includes two adjacent sections prefabricated pipe galleries and stagnant water sealing member, its characterized in that: respectively prefabricating a plurality of grooves on respective sealing surfaces vertically corresponding to adjacent pipe galleries, arranging elastic water stop sealing elements in a matching way with the grooves on the two sealing surfaces, overlapping sealing plates on the upper surfaces of the joints of the adjacent pipe galleries, and connecting the adjacent prefabricated pipe galleries into a whole through the elastic water stop sealing elements and the sealing plates; the elastic water stopping sealing piece is an elastic water stopping clamp, the upper part of the elastic water stopping clamp is provided with two outward-extending flat plates, the middle part of the elastic water stopping clamp is an angular sealing bulge, and the lower part of the elastic water stopping clamp is a conical part; the corresponding sealing surfaces of the adjacent pipe galleries in the vertical direction are respectively prefabricated with an angular sealing groove matched with the elastic water stop clamp; the opening angle of each angular sealing groove of the pipe gallery and the angle of each angular sealing bulge in the middle of the elastic water stop clamp are different, and the angle is gradually decreased from the water facing side to the upper angle.
2. The prefabricated assembled utility tunnel joint sealing structure of claim 1, characterized in that: the upper surface of the adjacent pipe gallery is processed with a stepped groove which is divided into a deep groove and a shallow groove, two sides of the flat plate at the upper part of the elastic water stop clamp are bent parts, the bent parts are in sealing fit with the deep groove, and two sides of the sealing plate are also bent parts and are in sealing fit with the shallow groove.
3. The prefabricated assembled utility tunnel joint sealing structure of claim 1, characterized in that: the surface of the outer side of the elastic water stop clamp is coated with a water-swelling rubber layer at the matching part of the groove of the pipe gallery.
4. The prefabricated assembled utility tunnel joint sealing structure of claim 1, characterized in that: the flat plate is provided with an extruded steel bar.
5. A construction method of a prefabricated assembly type comprehensive pipe gallery joint water stop structure is characterized by comprising the following steps:
(1) respectively prefabricating two sections of angle-shaped sealing grooves on respective sealing surfaces vertically corresponding to adjacent pipe galleries, wherein the opening angles of the grooves are gradually decreased from the upstream surface to the upstream surface, and prefabricating a step-shaped groove on the upper surface of each pipe gallery;
(2) determining the size of the elastic water stop clamp according to the opened angle-shaped sealing groove;
(3) processing a prefabricated pipe gallery section with an angular sealing groove and an elastic water stop clamp in a factory, wherein the upper surface of the elastic water stop clamp is provided with two extruded steel bars;
(4) after the on-site pipe gallery is accurately hoisted and positioned, removing sundries in the groove, coating a layer of anti-rust paint on the inner surface and the outer surface of the elastic water stop clamp, and adhering a layer of water-swellable rubber layer on the water-facing side;
(5) extruding the extruded steel bars on the upper surface of the elastic water stop clamp by using extrusion equipment, and placing the elastic water stop clamp in the angular grooves of two adjacent prefabricated pipe galleries to enable the elastic water stop clamp to be perfectly matched with the pipe gallery grooves;
(6) the inner cavity of the elastic water stop clamp is filled with factice, and a sealing plate is placed on the upper surface of the elastic water stop clamp, so that the surface of the sealing plate and the surface of the pipe gallery are on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710145408.1A CN106759524B (en) | 2017-03-13 | 2017-03-13 | Prefabricated assembly type comprehensive pipe gallery joint water stop structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710145408.1A CN106759524B (en) | 2017-03-13 | 2017-03-13 | Prefabricated assembly type comprehensive pipe gallery joint water stop structure and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106759524A CN106759524A (en) | 2017-05-31 |
| CN106759524B true CN106759524B (en) | 2022-07-08 |
Family
ID=58962475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710145408.1A Active CN106759524B (en) | 2017-03-13 | 2017-03-13 | Prefabricated assembly type comprehensive pipe gallery joint water stop structure and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106759524B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499778A (en) * | 2019-06-28 | 2019-11-26 | 盐城工学院 | A kind of novel piping lane component and its installation method |
| CN110512645B (en) * | 2019-08-06 | 2021-01-05 | 东南大学 | Elastic assembly type pipe gallery water stop structure and construction method thereof |
| CN111924904B (en) * | 2020-08-07 | 2022-09-02 | 中国水电基础局有限公司 | Method and device for realizing water stop between adjacent members of underground water reaction wall |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003328381A (en) * | 2002-05-10 | 2003-11-19 | Sumitomo Rubber Ind Ltd | Flexible rubber joint and its mounting structure and its constructing method |
| CN200949231Y (en) * | 2006-08-07 | 2007-09-19 | 上海市隧道工程轨道交通设计研究院 | Water-proof structure of open-excavated tunnel suitable for greatly uneven settlement and dislocating of stratum |
| CN201620428U (en) * | 2009-12-28 | 2010-11-03 | 浙江科技学院 | Basement deformation joint water stopping device |
| CN201713830U (en) * | 2010-05-21 | 2011-01-19 | 宝山钢铁股份有限公司 | Plugging device for underground-structure deformation joint |
| KR101416329B1 (en) * | 2013-04-10 | 2014-07-09 | 장영미 | Connecting Apparatus for obstructing water used in a combining section for the connected Concrete Members |
| CN203834522U (en) * | 2013-12-03 | 2014-09-17 | 深圳市城市优筑科技有限公司 | Waterproof structure for concrete box culvert deformation joint |
| CN105525628A (en) * | 2015-12-30 | 2016-04-27 | 中国市政工程华北设计研究总院有限公司 | Tube corridor connector sealing device |
| CN106245686A (en) * | 2016-10-10 | 2016-12-21 | 江苏建筑职业技术学院 | Underground pipe gallery agent structure expansion joint substituted device and implementation |
| CN206625261U (en) * | 2017-03-13 | 2017-11-10 | 长春工程学院 | A kind of prefabricated assembled pipe gallery joint water sealing structure |
-
2017
- 2017-03-13 CN CN201710145408.1A patent/CN106759524B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003328381A (en) * | 2002-05-10 | 2003-11-19 | Sumitomo Rubber Ind Ltd | Flexible rubber joint and its mounting structure and its constructing method |
| CN200949231Y (en) * | 2006-08-07 | 2007-09-19 | 上海市隧道工程轨道交通设计研究院 | Water-proof structure of open-excavated tunnel suitable for greatly uneven settlement and dislocating of stratum |
| CN201620428U (en) * | 2009-12-28 | 2010-11-03 | 浙江科技学院 | Basement deformation joint water stopping device |
| CN201713830U (en) * | 2010-05-21 | 2011-01-19 | 宝山钢铁股份有限公司 | Plugging device for underground-structure deformation joint |
| KR101416329B1 (en) * | 2013-04-10 | 2014-07-09 | 장영미 | Connecting Apparatus for obstructing water used in a combining section for the connected Concrete Members |
| CN203834522U (en) * | 2013-12-03 | 2014-09-17 | 深圳市城市优筑科技有限公司 | Waterproof structure for concrete box culvert deformation joint |
| CN105525628A (en) * | 2015-12-30 | 2016-04-27 | 中国市政工程华北设计研究总院有限公司 | Tube corridor connector sealing device |
| CN106245686A (en) * | 2016-10-10 | 2016-12-21 | 江苏建筑职业技术学院 | Underground pipe gallery agent structure expansion joint substituted device and implementation |
| CN206625261U (en) * | 2017-03-13 | 2017-11-10 | 长春工程学院 | A kind of prefabricated assembled pipe gallery joint water sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106759524A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106759524B (en) | Prefabricated assembly type comprehensive pipe gallery joint water stop structure and construction method | |
| CN103074905A (en) | Rear replaceable type waterproof device for deformation joint of basement and installation method thereof | |
| CN105064553A (en) | Flexible prefabricated and assembled shear wall-external window integrated construction system and method | |
| CN203669179U (en) | Joint structure of steel roof at longitudinal and transverse striding position of steel structure factory building | |
| CN205171774U (en) | Stone curtain wall | |
| CN205224954U (en) | Prefabricated window wall body of taking | |
| CN203034493U (en) | Rear-mounted replaceable type basement deformation joint waterproof device | |
| CN206625261U (en) | A kind of prefabricated assembled pipe gallery joint water sealing structure | |
| CN215715531U (en) | Prefabricated piping lane socket joint formula connects watertight fittings | |
| CN103806412A (en) | Water leakage repair structure for water pool expansion joint | |
| CN207896638U (en) | A kind of cable protection pipe block head | |
| CN111711155B (en) | Sealing and plugging device for cable pipe orifice and application method thereof | |
| CN203572619U (en) | Outer window edge waterproof detection device | |
| CN210798087U (en) | Profiled steel sheet composite board with rainwater drainage device | |
| CN211446883U (en) | Underground continuous wall antiseep connection structure | |
| CN203866851U (en) | Multifunctional caisson flotation template | |
| CN210315657U (en) | Steel socket assembling joint structure for whole-section prefabricated pipe gallery | |
| CN210288398U (en) | Concrete infiltration is handled outer back pressure cementer that seals | |
| CN211250698U (en) | Horizontal single storehouse piping lane mould of high leakproofness | |
| CN211646296U (en) | Reconstruction structure for newly-built tunnel inlet by utilizing existing tunnel | |
| CN204475592U (en) | A kind of waterproof construction of new GRC link plate | |
| CN206591738U (en) | A kind of high water proofing property lap jointing type lock screw steel plate | |
| CN207017505U (en) | A kind of Split sink constructing structure on unit type energy-saving curtain wall | |
| CN205591325U (en) | Concatenation formula escape canal | |
| CN204919894U (en) | Flexible prefabricated assembly shear force wall - exterior window integration construction system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |