CN204098935U - Tunnel concrete supporting walls cricket iron rack - Google Patents
Tunnel concrete supporting walls cricket iron rack Download PDFInfo
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- CN204098935U CN204098935U CN201420424249.0U CN201420424249U CN204098935U CN 204098935 U CN204098935 U CN 204098935U CN 201420424249 U CN201420424249 U CN 201420424249U CN 204098935 U CN204098935 U CN 204098935U
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- magnesium iron
- rack
- iron
- cricket
- supporting walls
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Abstract
The utility model belongs to a kind of tunnel concrete supporting walls cricket iron rack, comprises magnesium iron wallboard 1, it is characterized in that on magnesium iron wallboard 1, be provided with multiple rack holder 2, and the rack holder 2 that magnesium iron rod 3 is housed welds a magnesium iron net 5.The upper surface grids of magnesium iron net 5 is 193mm*120mm, and lower surface grids is 90mm*120mm.Whole raw materials of this utility model all adopt magnesium iron, and the scope of application is wide, is particularly suitable for the environment that moisture is large, salinity is high, and corrosion resistance is strong, and structure is simple, fast easy to assembly.
Description
Technical field
The utility model belongs to support of tunnel guard member, particularly a kind of tunnel concrete supporting walls cricket iron rack.
Background technology
Current domestic construction construction industry, to under underground, river, the concrete bar frame that adopts of seabed, railway, the engineering such as highway tunnel and people's air defense generally all adopts plain bars, its intensity, plasticity and toughness are high, and can clod wash shape, there is good solderability, be applicable to various concrete and be used as bar frame, cheap, be widely used.
Through the Analysis and Identification of long-term practice and various building collapse accident, find this bar frame, due to moisture, produce galvanic cell in the concrete work that salinity is large act on it and cause serious corrosion phenomena, and expansion forms dilatant produces the hidden row of extruding crackle destruction to surrounding concrete, reduce integrally-built application life, there is the high potential faults of sudden destruction.
Summary of the invention
The object of the invention is to overcome above-mentioned technical deficiency, provide one to be applicable to ambient moisture large, salinity is high, and corrosion resistance is strong, and structure is simple, tunnel concrete supporting walls cricket iron rack easy to assembly.
The technical scheme that the utility model technical solution problem adopts is: a kind of tunnel concrete supporting walls cricket iron rack, comprise magnesium iron wallboard, it is characterized in that on magnesium iron wallboard, be provided with multiple rack holder, the solid magnesium iron net of welding on the rack that magnesium iron rod is housed.The upper surface grids of magnesium iron net is 193mm*120mm, and lower surface grids is 90mm*120mm.
The beneficial effects of the utility model are: whole raw materials of this utility model all adopt magnesium iron, and the scope of application is wide, is particularly suitable for the environment that moisture is large, salinity is high, and corrosion resistance is strong, and structure is simple, fast easy to assembly.
Accompanying drawing explanation
Illustrate with embodiment below in conjunction with accompanying drawing.
Fig. 1 is the front view of tunnel concrete supporting walls cricket iron rack;
Fig. 2 is A-A sectional view in Fig. 1.
In figure: 1-magnesium iron wallboard; 2-rack holder; 3-magnesium iron rod; 4-suspension ring; 5-magnesium iron rack.
Detailed description of the invention
Embodiment, with reference to accompanying drawing, a kind of tunnel concrete supporting walls cricket iron rack, comprises magnesium iron wallboard 1, it is characterized in that on magnesium iron wallboard 1, be provided with three rack holders 2, and the rack holder 2 that magnesium iron rod 3 is housed welds a magnesium iron net 5.The upper surface grids of magnesium iron net 5 is 193mm*120mm, and lower surface grids is 90mm*120mm.Between two longitudinal magnesium iron rods 3, weld suspension ring 4, when assembling, lifting uses.For the optional material capability index of magnesium iron rack 5 in table one.
Table one:
QT400-22, the arrangement of reinforcement being mainly used in main framing uses, and has solderability; QT450-15, is mainly used in main framing, has solderability; QT500-12, is mainly used in Chinese medicine engineering main framing, can Ni-based or copper base heterogeneous type welding rod welding.
The manufacture method of magnesium iron rack: choose the trade mark first as required, because magnesium iron phosphorus content is higher during welding, very responsive to cooling velocity, plumb joint position is due to local melting welding, and the cooling velocity of postwelding is very fast, is unfavorable for Graphite Precipitation, easily white structure is there is in weld seam and melting welding, produce welding stress, reduce the intensity of welding position, therefore will note following item:
1, the environment temperature of welding scene to be noted, must at room temperature weld, to reduce welding stress, prevent bead crack.
2, welding thicker main framing forming welding preferably adopts half preheating (300-400 DEG C) to weld, and is toasting a little, then can carry out manual electric arc welding to good joint gas welding, and selects homogeneity type magnesium iron welding rod.Welding procedure will adopt big current, continuous welding, can effectively control postwelding cooling velocity, there will not be bead crack.
3, for main framing and arrangement of reinforcement assembly welding, the direct manual electric arc welding of heterogeneous type welding rod can be adopted.Such as with nickel-base welding rod or copper base welding rod, welding procedure will adopt small area analysis, discontinuous welding, and at postwelding hammering weld seam immediately, easily lax weld stress, prevents crackle.
4, all must prevent from drenching with rain to the rack of the existing former material for magnesium iron rack, part, parts and postwelding, fog gets rusty, rust can not be with pre-buried in concrete.
Claims (2)
1. a tunnel concrete supporting walls cricket iron rack, comprise magnesium iron wallboard (1), it is characterized in that on magnesium iron wallboard (1), be provided with multiple rack holder (2), the upper welding magnesium iron net (5) of the rack holder (2) that magnesium iron rod (3) is housed.
2. tunnel concrete supporting walls cricket iron rack according to claim 1, it is characterized in that the upper surface grids of magnesium iron net (5) is 193mm*120mm, lower surface grids is 90mm*120mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424249.0U CN204098935U (en) | 2014-07-30 | 2014-07-30 | Tunnel concrete supporting walls cricket iron rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424249.0U CN204098935U (en) | 2014-07-30 | 2014-07-30 | Tunnel concrete supporting walls cricket iron rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204098935U true CN204098935U (en) | 2015-01-14 |
Family
ID=52267371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420424249.0U Expired - Fee Related CN204098935U (en) | 2014-07-30 | 2014-07-30 | Tunnel concrete supporting walls cricket iron rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204098935U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927251A (en) * | 2016-06-30 | 2016-09-07 | 吴镇 | Shallow embedded magnesium iron-reinforced concrete combined tunnel wall plate |
| CN106640116A (en) * | 2017-03-01 | 2017-05-10 | 吴镇 | Modified structure of tunnel transverse way thee-joint joint pipe composite member |
| CN106812538A (en) * | 2015-11-29 | 2017-06-09 | 吴镇 | Built-in type magnesium iron framework-reinforced concrete combination tunnel wallboard |
| CN114960756A (en) * | 2021-02-26 | 2022-08-30 | 宝山钢铁股份有限公司 | Underwater net-hanging masking type tunnel and construction method thereof |
-
2014
- 2014-07-30 CN CN201420424249.0U patent/CN204098935U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812538A (en) * | 2015-11-29 | 2017-06-09 | 吴镇 | Built-in type magnesium iron framework-reinforced concrete combination tunnel wallboard |
| CN106812538B (en) * | 2015-11-29 | 2019-02-01 | 吴镇 | Built-in type magnesium iron frame-reinforced concrete combination tunnel siding |
| CN105927251A (en) * | 2016-06-30 | 2016-09-07 | 吴镇 | Shallow embedded magnesium iron-reinforced concrete combined tunnel wall plate |
| CN105927251B (en) * | 2016-06-30 | 2018-06-08 | 吴镇 | Shallow buried type magnesium iron frame-reinforced concrete combination tunnel siding |
| CN106640116A (en) * | 2017-03-01 | 2017-05-10 | 吴镇 | Modified structure of tunnel transverse way thee-joint joint pipe composite member |
| CN114960756A (en) * | 2021-02-26 | 2022-08-30 | 宝山钢铁股份有限公司 | Underwater net-hanging masking type tunnel and construction method thereof |
| CN114960756B (en) * | 2021-02-26 | 2024-01-09 | 宝山钢铁股份有限公司 | Underwater net-hanging masking type tunnel and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20170730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |