CN107326939B - A kind of underground continuous wall connector H profile steel welding template construction device and method - Google Patents
A kind of underground continuous wall connector H profile steel welding template construction device and method Download PDFInfo
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- CN107326939B CN107326939B CN201710404865.8A CN201710404865A CN107326939B CN 107326939 B CN107326939 B CN 107326939B CN 201710404865 A CN201710404865 A CN 201710404865A CN 107326939 B CN107326939 B CN 107326939B
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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Abstract
The present invention provides a kind of underground continuous wall connector H profile steels to weld template construction device and method, described device includes platform steel plate, supporting steel plate, herringbone diagonal brace and hinge hinge, wherein: platform steel plate is supporting steel plate, herringbone diagonal brace provides mounting platform, multiple supporting steel plates are at equal intervals, it is arranged in parallel along platform steel plate length direction, the plate face of supporting steel plate is perpendicular to platform steel plain, the long side of supporting steel plate perpendicular to platform steel plate long side and be welded on platform steel plate, multipair herringbone diagonal brace is respectively symmetrically distributed in the two sides of multiple supporting steel plate length directions, and it is connected and fixed by hinge hinge and platform steel plate；The method is based on described device.The present invention enormously simplifies H profile steel fabrication processing, reduces production safety hidden danger, improves production efficiency, reduces production cost；It can satisfy requirement of engineering using H profile steel produced by the invention, meet requirement of the construction site to construction instrument, there is good future in engineering applications.
Description
Technical field
The present invention relates to the constructing devices and method in a kind of construction engineering technical field, and in particular, to a kind of underground
Continuous wall connector welds template construction device and method with H profile steel.
Background technique
Urban Underground track and various underground space buildings are built in each big city in the whole nation on a large scale, it usually needs
Excavation pit.When, place surrounding enviroment complexity larger for cutting depth or reverse construction, it usually needs use diaphram wall
As the temporary structure of earth-retaining and water blocking, a part of underground engineering permanent structure also can be used as.The connector shape of diaphram wall
There are many formulas, including: round fore shaft pipe fitting, waveform pipe fitting, H profile steel connector etc..Wherein, H profile steel connector have with
Lower advantage: there is no no muscle areas for connector, and the diaphram wall holistic resistant behavior of formation is good, is suitable for the stress of connector area complexity
It is required that and constructing operation it is simple.Therefore, H profile steel connector is widely used in construction of diaphragm wall.
H profile steel rolling mill practice and equipment are all more complicated, and H profile steel stock size used in architectural engineering is larger, therefore more
H profile steel is welded into using steel plate.In welding process, plate quality is big, carries according to construction personnel, and carrying difficulty is big, construction
Progress is slow, and there are security risks.In addition, needing to carry out when carrying out two-sided welding to the H profile steel edge of a wing and web junction
Overturning, since H profile steel length is big compared with long and quality, according to artificial overturning, difficulty is larger；According to big machinery, apply
Work cost is big, and progress is slow, and site requirements is high.
By the retrieval discovery to existing technical literature, China Patent No. are as follows: 201510819647.1, patent publication No.
Are as follows: 105484504, patent name are as follows: a kind of easy device for making big section H profile steel, a kind of patent readme are as follows: " production
The easy device of big section H profile steel, including support frame, lower fixing piece, upper fixing element and wedge-shaped feeler gauge, support frame as described above by
Bracket and several supporting legs composition, the bracket are welded H section steel, and the supporting leg is channel steel, and several supporting legs are mutual
Interval suitable distance is welded on frame bottom two sides, and the supporting leg is concordant with cradle bottom surface, and the supporting leg web interval is suitable
When range segment separating is slotted, the lower fixing piece is channel steel and lower fixing piece upper end is provided with several card slots, the lower fixing piece
Lower end is fixedly connected with the supporting leg of support frame, if the upper fixing element is steel plate and is respectively arranged at steel plate longitudinal direction both ends
Dry card slot, the wedge-shaped feeler gauge are wedge-shaped block structure, the card slot matching with lower fixing piece." primary weldering is completed in above-mentioned patent
It connects and needs to install multiple upper fixing elements, complex process.Upper fixing element and lower fixing piece complex manufacturing technology, increase cost.?
In welding process, due to the presence of upper fixing element, seriously affects welding and be carried out continuously, speed of welding is difficult to protect with welding quality
Card.Therefore, the disadvantages of above-mentioned patent is difficult to ensure there are complex process, at high cost, quality.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of underground continuous wall connectors is welded with H profile steel
Template construction device and method, by described device can at the construction field (site) quickly, produce required H profile steel in high quality, solve
Certainly the problem of factory's cost of manufacture height, live processing and fabricating low efficiency.
The present invention is realized by the following scheme:
According to an aspect of the present invention, a kind of underground continuous wall connector H profile steel welding template construction device, institute are provided
Stating device includes: platform steel plate, supporting steel plate, herringbone diagonal brace and hinge hinge, in which:
The platform steel plate is laid in ground, for providing mounting platform for the supporting steel plate, the herringbone diagonal brace, and
In the platform steel plate providing holes for installing hinge hinge；
The supporting steel plate has multiple, and multiple supporting steel plates are at equal intervals along the parallel cloth in platform steel plate length direction
It sets；The plate face of the supporting steel plate is perpendicular to the plane of the platform steel plate, and the long side of the supporting steel plate is perpendicular to described flat
The long side of platform steel plate is simultaneously welded on the platform steel plate；
The herringbone diagonal brace has multipair, and the multipair herringbone diagonal brace is symmetrically distributed in the two of the supporting steel plate length direction
Side, and connect by the hinge hinge with the platform steel plate.
Preferably, the platform steel plate is the rectangular steel plates of one piece of 5~30mm of thickness, coplanar flat, the length of rectangular steel plates
Degree is 0.1~1m longer than required H profile steel length, width is 0.1~1m higher than required H profile steel web height.
Preferably, the two sides of the supporting steel plate are respectively welded 1~5 support bar dowel, for guaranteeing supporting steel plate
It bears pressure and remains perpendicular to platform steel plate；Support bar dowel and supporting steel plate, platform steel plate triangular in shape.
It is highly preferred that a length of 50~500mm, the diameter of the support bar dowel are 10~50mm.
Preferably, the supporting steel plate is rectangular steel plates, a long side of rectangular steel plates and the welding of platform steel plate, not with it is flat
The long side of platform steel plate welding is side-strut；The long side length of rectangular steel plates is equal with required H profile steel web height；Each support
The side-strut of steel plate is in same plane, and the plane is parallel with plane where platform steel plate.
Preferably, the width (b), required H profile steel web on the width (B) of the supporting steel plate and the required H profile steel edge of a wing
Thickness (t) meets following relationship:
B=(b-t)/2.
Preferably, the spacing between the supporting steel plate of parallel arrangement is 0.3~1.5m.
Preferably, the herringbone diagonal brace is welded into herringbone structure by the rectangular steel plates of long and short two pieces of different lengths, grow,
It is 5~30mm that the width of short two pieces of rectangular steel plates, which is 50~250mm, thickness,；Wherein:
Long steel plate with the welding of the end of short steel plate, in addition while as bearing surface, bearing surface and platform steel plate institute
Angled is α, and it is β that long steel plate is at an acute angle with short steel plate institute, and wherein α value range is 45~60 °, 90 ° of alpha+beta >.
It is highly preferred that the width (B) of the length (L) of the long steel plate, the length (l) of short steel plate and supporting steel plate is full respectively
It is enough lower relationship:
It is highly preferred that the supported end end of the long steel plate is at a distance from supporting steel plate than the thickness on the required H profile steel edge of a wing
Big 1~5mm.
The working principle of described device are as follows:
The platform steel plate provides mounting platform for the supporting steel plate and the herringbone diagonal brace, and the supporting steel plate is weldering
It connects H profile steel web and vertical supporting, positioning device of the herringbone diagonal brace as the welded H section steel edge of a wing, the herringbone diagonal brace is provided
Position adjustment can be carried out as desired by hinge hinge.
According to another aspect of the present invention, a kind of underground continuous wall connector H profile steel welding template construction method is provided,
Described method includes following steps:
The first step lifts welded H section steel web using light gantry, makes the length direction of welded H section steel web and puts down
The length direction of platform steel plate is parallel, and is placed horizontally on the side-strut of supporting steel plate, at the same the both sides of welded H section steel web with
The edge of supporting steel plate is concordant；
Second step is hung using light gantry, and the bearing surface by welded H section steel edge of a wing lath along herringbone diagonal brace slides into welding position
It sets, makes being placed in the gap that supporting steel plate and herringbone diagonal brace supported end are formed on one side for welded H section steel edge of a wing lath, welded H type
The plate face of steel edge of a wing lath is placed on herringbone diagonal brace bearing surface；
Third step is located in the gap that supporting steel plate and herringbone diagonal brace supported end are formed with welded H section steel edge of a wing lath
On one side it is axis, pulls the another side of welded H section steel edge of a wing lath, keeps it upright and closely welded H section steel web；By welded H type
Unilateral side is carried out again after steel web and the progress spot welding positioning of welded H section steel edge of a wing lath to be fully welded；Again in the same way, it welds another
Welded H section steel edge of a wing lath and welded H section steel web；
4th step is hung using light gantry, and single fillet welded welded H section steel web is hung template and overturn,
It is put into the welded H section steel web and the intermarginal weld seam of both wings for welding other one side after template again.
Compared with prior art, the present invention have it is following the utility model has the advantages that
The present invention complicated, required larger-size feature of H profile steel for construction site place, passes through a set of welded H section steel
Plate device realizes the production of H profile steel component.Described device enormously simplifies H profile steel fabrication processing, reduces production peace
Full hidden danger, improves production efficiency, reduces production cost.The H profile steel produced using described device, can satisfy engineering needs
It wants, meets requirement of the construction site to construction instrument, there is good future in engineering applications.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is that the H profile steel of one embodiment of the present invention welds plate device top view；
Fig. 2 is that the H profile steel of one embodiment of the present invention welds plate device side view；
Fig. 3 is the herringbone diagonal brace structural map of one embodiment of the present invention；
Fig. 4 is the hinge hinge detail view of one embodiment of the present invention；
In figure:
1 it is platform steel plate, 2 be supporting steel plate, 3 be herringbone diagonal brace, 4 be hinge hinge, 5 be fixing bolt, 6 is that herringbone is oblique
Support long steel plate, 7 be the short steel plate of herringbone diagonal brace, 8 be support bar dowel.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
In an embodiment of the present invention, a kind of underground continuous wall connector H profile steel welding plate device is provided, for manufacturing
A kind of H profile steel, the length is 5200mm, web height 1200mm, edge of a wing board width is 390mm, web and edge of a wing plate thickness
It is 10mm.Certainly in other embodiments, it is also possible to manufacture the H profile steel of other sizes and type.
As Figure 1-Figure 4, the underground continuous wall connector H profile steel welding plate device includes: platform steel plate 1, branch
Support steel plate 2, herringbone diagonal brace 3 and hinge hinge 4, in which:
It is that the supporting steel plate 2 provides welding platform that the platform steel plate 1, which is laid in ground, is hinge hinge 4 corresponding
Position provides installation screw；
The supporting steel plate 2 is arranged in parallel at equal intervals, along 1 length direction of platform steel plate, and 2 plate face of the supporting steel plate is hung down
Directly in 1 plane of platform steel plate, 2 long side of supporting steel plate is welded in flat perpendicular to 1 long side of platform steel plate, 2 long side of supporting steel plate
On platform steel plate 1；
The herringbone diagonal brace 3 is connected and fixed by hinge hinge 4 with platform steel plate 1, and 2 length direction of supporting steel plate is distributed in
Two sides.
As a preferred embodiment, the platform steel plate 1 is one piece of rectangular steel plates, and steel plain is smooth, and length is
6000mm, width 2000mm, with a thickness of 10mm.
As a preferred embodiment, the supporting steel plate 2 is rectangular steel plates, and the long side length of rectangular steel plates is
1100mm, width 190mm, with a thickness of 10mm；One long side of rectangular steel plates and the welding of platform steel plate 1, not with platform steel plate 1
The long side of welding is side-strut；The side-strut of each supporting steel plate 2 is in same plane, and the plane and platform steel plate
1 place plane is parallel.
Further, the supporting steel plate 2 is parallel to each other, and arranges that spacing is 0.5m.
As shown in Figure 1 and Figure 2, further, 3 support bar dowels 8 are respectively welded in the two sides of the supporting steel plate 2, use
To guarantee that supporting steel plate 2 is able to bear biggish pressure and remains perpendicular to platform steel plate 1.
Further, the support bar dowel 8 and supporting steel plate 2, platform steel plate 1 are triangular in shape.
Further, 8 diameter of support bar dowel is 30mm, reinforcing bar model HRB335, length 260mm.
As shown in figure 3, the herringbone diagonal brace 3 is oblique by the long steel plate 6 of herringbone diagonal brace, herringbone as a preferred embodiment
Supportting the short welding of steel plate 7 is in herringbone, in which: the welding of the end of the one side of the long steel plate 6 of herringbone diagonal brace and the short steel plate 7 of herringbone diagonal brace,
In addition one side is used as bearing surface, and it is 60 ° that bearing surface is angled with 1 plane of platform steel plate；The long steel plate 6 of herringbone diagonal brace and herringbone diagonal brace
Short 7 institute of steel plate at an acute angle is 40 °.
Further, the length of the long steel plate 6 of the herringbone diagonal brace be 240mm, width 250mm, with a thickness of 10mm；It is described
The length of the short steel plate 7 of herringbone diagonal brace is 105mm, width 250mm, with a thickness of 10mm.
Further, the base support end end of the long steel plate 6 of the herringbone diagonal brace is 2mm at a distance from supporting steel plate 2.
As shown in figure 3, further, the base support end point of the long steel plate 6 of the herringbone diagonal brace, the short steel plate 7 of herringbone diagonal brace
Not Tong Guo hinge hinge 4 be connected and fixed with platform steel plate 1, two hinge hinges 4 are located at the long steel plate 6 of herringbone diagonal brace and platform
1 junction of steel plate, the short steel plate 7 of herringbone diagonal brace and 1 junction of platform steel plate, it is long that 4 rotation axis of hinge hinge is parallel to herringbone diagonal brace
Short 7 plate face of steel plate of 6 plate face of steel plate, herringbone diagonal brace, 1 plate face of platform steel plate, two 4 one hinges of hinge hinge respectively with herringbone diagonal brace
Short 7 plate face of the steel plate welding of long 6 plate face of steel plate, herringbone diagonal brace, another hinge are connected and fixed by bolt with platform steel plate 1.
In described device: the platform steel plate 1 is that the supporting steel plate 2 and the herringbone diagonal brace 3 provide mounting platform, institute
It states supporting steel plate 2 and provides vertical supporting for welded H section steel web, the herringbone diagonal brace 3 is filled as the positioning on the welded H section steel edge of a wing
It sets, the herringbone diagonal brace 3 can carry out position adjustment as desired by the hinge hinge 4.
Based on above-mentioned device, a kind of underground continuous wall connector H profile steel welding template construction method, including walk as follows
It is rapid:
The first step lifts welded H section steel web using light gantry, makes welded H section steel web length direction and platform
1 length direction of steel plate is parallel, is placed horizontally on the side-strut of supporting steel plate 2, and makes both sides and the support of welded H section steel web
The edge of steel plate 2 is concordant；
Second step is hung using light gantry, and the bearing surface by welded H section steel edge of a wing lath along herringbone diagonal brace 3 slides into welding
Position makes in the gap for the supported end formation for being placed in supporting steel plate 2 and herringbone diagonal brace 3 on one side of welded H section steel edge of a wing lath, weldering
The plate face for connecing H profile steel edge of a wing lath is placed on herringbone diagonal brace bearing surface；
Third step, the gap for being located at supporting steel plate 2 with the supported end formation of herringbone diagonal brace 3 with welded H section steel edge of a wing lath
Inside on one side it is axis, pulls the another side of welded H section steel edge of a wing lath, keeps it upright and closely welded H section steel web；By H profile steel
Unilateral side is carried out again after web and the progress spot welding positioning of welded H section steel edge of a wing lath to be fully welded；Again in the same way, another weldering is welded
Connect H profile steel edge of a wing lath and welded H section steel web；
4th step is hung using light gantry, and single fillet welded welded H section steel web is hung template and overturn,
It is put into the welded H section steel web and the intermarginal weld seam of both wings for welding other one side after template again.
The present invention complicated, required larger-size feature of H profile steel for construction site place, passes through a set of welded H section steel
Plate device realizes the production of H profile steel component；Described device enormously simplifies H profile steel fabrication processing, reduces production peace
Full hidden danger, improves production efficiency, reduces production cost；And it can satisfy engineering using the H profile steel that described device produces
It needs, meets requirement of the construction site to construction instrument, there is good future in engineering applications.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned spies
Determine embodiment, those skilled in the art can make various deformations or amendments within the scope of the claims, this has no effect on
Substantive content of the invention.
Claims (9)
1. a kind of underground continuous wall connector welds template construction device with H profile steel characterized by comprising platform steel plate, support
Steel plate, herringbone diagonal brace and hinge hinge, in which:
The platform steel plate, for providing mounting platform for the supporting steel plate, the herringbone diagonal brace, and in the platform steel plate
Providing holes is for installing the hinge hinge；
The supporting steel plate have it is multiple, multiple supporting steel plates at equal intervals along platform steel plate length direction be arranged in parallel；
The plate face of the supporting steel plate is perpendicular to the plane of the platform steel plate, and the long side of the supporting steel plate is perpendicular to the platform steel
The long side of plate is simultaneously welded on the platform steel plate；
The herringbone diagonal brace has multipair, and the multipair herringbone diagonal brace is symmetrically distributed in the two sides of the supporting steel plate length direction,
And it is connect by the hinge hinge with the platform steel plate；
The supporting steel plate is rectangular steel plates, and a long side and platform steel plate for rectangular steel plates is welded, do not welded with platform steel plate
Long side be side-strut；The long side length of rectangular steel plates is equal with required H profile steel web height；The bearing of each supporting steel plate
While being in same plane, and the plane is parallel with plane where platform steel plate.
2. a kind of underground continuous wall connector according to claim 1 welds template construction device with H profile steel, feature exists
In the platform steel plate is the rectangular steel plates of one piece of 5~30mm of thickness, coplanar flat, and the length of rectangular steel plates is than required H profile steel
It is 0.1~1m higher than required H profile steel web height that length grows 0.1~1m, width.
3. a kind of underground continuous wall connector according to claim 1 welds template construction device with H profile steel, feature exists
In the two sides of the supporting steel plate are respectively welded 1~5 support bar dowel, for guaranteeing that supporting steel plate bears pressure and protects
It holds perpendicular to platform steel plate；Support bar dowel and supporting steel plate, platform steel plate triangular in shape；
A length of 50~500mm, the diameter of the support bar dowel are 10~50mm.
4. a kind of underground continuous wall connector according to claim 1 welds template construction device with H profile steel, feature exists
In the width b on the width B of the supporting steel plate and the required H profile steel edge of a wing, the thickness t of required H profile steel web meet with ShiShimonoseki
System:
B=(b-t)/2.
5. a kind of underground continuous wall connector according to claim 1 welds template construction device with H profile steel, feature exists
In the spacing between the supporting steel plate of parallel arrangement is 0.3~1.5m.
6. a kind of underground continuous wall connector according to claim 1-5 welds template construction device with H profile steel,
It being characterized in that, the herringbone diagonal brace is welded into herringbone structure by the rectangular steel plates of long and short two pieces of different lengths, and long and short two pieces
It is 5~30mm that the width of rectangular steel plates, which is 50~250mm, thickness,；Wherein:
Long steel plate with the welding of the end of short steel plate, in addition while as bearing surface, bearing surface and the be in angle of platform steel plate
Degree is α, and it is β that long steel plate is at an acute angle with short steel plate institute, and wherein α value range is 45~60 °, 90 ° of alpha+beta >.
7. a kind of underground continuous wall connector according to claim 6 welds template construction device with H profile steel, feature exists
In the width B of the length L of the long steel plate, the length l of short steel plate and supporting steel plate meet following relationship respectively:
8. a kind of underground continuous wall connector according to claim 6 welds template construction device with H profile steel, feature exists
In thickness of the supported end end of the long steel plate at a distance from supporting steel plate than the required H profile steel edge of a wing is 1~5mm big.
9. a kind of underground continuous wall connector based on any one of claim 1-8 described device welds template construction side with H profile steel
Method, which is characterized in that described method includes following steps:
The first step lifts welded H section steel web using light gantry, makes the length direction and platform steel of welded H section steel web
The length direction of plate is parallel, and is placed horizontally on the side-strut of supporting steel plate, while the both sides of welded H section steel web and support
Edges of plate is concordant；
Second step is hung using light gantry, and the bearing surface by welded H section steel edge of a wing lath along herringbone diagonal brace slides into welding position,
Make being placed in the gap that supporting steel plate and herringbone diagonal brace supported end are formed on one side for welded H section steel edge of a wing lath, the welded H section steel wing
The plate face of listrium item is placed on herringbone diagonal brace bearing surface；
Third step, the one side being located in the gap that supporting steel plate and herringbone diagonal brace supported end are formed with welded H section steel edge of a wing lath
For axis, the another side of welded H section steel edge of a wing lath is pulled, keeps it upright and closely welded H section steel web；By welded H section steel abdomen
Unilateral side is carried out again after plate and the progress spot welding positioning of welded H section steel edge of a wing lath to be fully welded；Again in the same way, another welding is welded
H profile steel edge of a wing lath and welded H section steel web；
4th step is hung using light gantry, and single fillet welded welded H section steel web is hung template and overturn, is being put into
The welded H section steel web and the intermarginal weld seam of both wings of other one side are welded after template again.
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| JP2012139710A (en) * | 2010-12-28 | 2012-07-26 | Toyota Motor Corp | Method for welding small part, and template used for the same |
| CN102936953A (en) * | 2012-11-23 | 2013-02-20 | 中国建筑第八工程局有限公司 | Construction method of bridging-arm stiffened steel structure template |
| CN104070316A (en) * | 2014-06-30 | 2014-10-01 | 广东韶钢工程技术有限公司 | Welding H-shaped steel splicing assembly device and use method thereof |
| CN205116715U (en) * | 2015-10-10 | 2016-03-30 | 安徽卓良新材料有限公司 | Cast -in -situ box girder template bracing device |
| CN206854906U (en) * | 2017-06-01 | 2018-01-09 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of underground continuous wall connector welds template construction device with H profile steel |
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2017
- 2017-06-01 CN CN201710404865.8A patent/CN107326939B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012139710A (en) * | 2010-12-28 | 2012-07-26 | Toyota Motor Corp | Method for welding small part, and template used for the same |
| CN102936953A (en) * | 2012-11-23 | 2013-02-20 | 中国建筑第八工程局有限公司 | Construction method of bridging-arm stiffened steel structure template |
| CN104070316A (en) * | 2014-06-30 | 2014-10-01 | 广东韶钢工程技术有限公司 | Welding H-shaped steel splicing assembly device and use method thereof |
| CN205116715U (en) * | 2015-10-10 | 2016-03-30 | 安徽卓良新材料有限公司 | Cast -in -situ box girder template bracing device |
| CN206854906U (en) * | 2017-06-01 | 2018-01-09 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of underground continuous wall connector welds template construction device with H profile steel |
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| CN107326939A (en) | 2017-11-07 |
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