CN203531919U - Reinforcing structure of slip casting opening and air discharging hole of concrete filled steel tube support - Google Patents
Reinforcing structure of slip casting opening and air discharging hole of concrete filled steel tube support Download PDFInfo
- Publication number
- CN203531919U CN203531919U CN201320555133.6U CN201320555133U CN203531919U CN 203531919 U CN203531919 U CN 203531919U CN 201320555133 U CN201320555133 U CN 201320555133U CN 203531919 U CN203531919 U CN 203531919U
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- China
- Prior art keywords
- steel pipe
- steel tube
- slip casting
- grouting port
- air discharging
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Abstract
The utility model discloses a reinforcing structure of a slip casting opening and an air discharging hole of a concrete filled steel tube support. The reinforcing structure comprises a hollow steel tube, the slip casting opening and the air discharging hole are formed in the hollow steel tube, reinforcing arc plates are welded to the positions, on the two sides of the slip casting opening and the air discharging hole, on the outer wall of the hollow steel tube, and short tubes are inserted into the slip casting opening and the air discharging hole. Round steel hole sealing plugs are inserted into the short tubes. Each round steel hole sealing plug comprises a round steel short section, and reinforcing steel bar handles are welded to the inner end faces of the round steel short sections. Reinforcing measures are taken to the position, where an opening is formed, of a support of the hollow steel tube, and the whole supporting intensity of the concrete filled steel tube support can be guaranteed.
Description
Technical field
The utility model relates to a kind of steel pipe concrete bracket, relates in particular to a kind of grouting port of steel pipe concrete bracket and the reinforced structure of steam vent.
Background technology
Along with coal resources are to deep mining, soft-rock tunnel problem is more and more outstanding.Due to the continuous increase of mining depth, geological environment constantly worsens, and geostatic stress increases, fragmented rock body increases, roadway maintenance difficulty, geological disaster increases, and the stability problem of roadway surrounding rock and supporting and protection structure has become restriction coal resources to the matter of utmost importance of deep mining.
A large amount of engineering practices show, in many situations, existing roadway surrounding rock control technology still can not be controlled the strong deformation of high stress and soft rock mine roadway effectively, and the reason that causes this situation is not that supporting intensity is inadequate, but because the structural stability of existing supporting bearing structure is poor, be difficult to effectively control the strong deformation of roadway surrounding rock.
In prior art, steel pipe concrete bracket supporting, as a kind of novel support form, has the advantages such as bearing capacity is high, support cost is low.Steel pipe concrete bracket is after empty steel pipe support has been set up in down-hole, then to concrete perfusion in empty steel pipe support.So, need to open an injected hole in a certain position of empty steel pipe support, and the aperture of injected hole is larger, is generally greater than 100mm.In addition, at a top of the trellis, also need perforate to carry out exhaust.
At least there is following shortcoming in above-mentioned prior art:
After empty steel pipe support perforate, at tapping, will produce larger stress on the one hand and concentrate, effective pressure-bearing basal area that aperture is located on empty steel pipe cross section on the other hand reduces (approximately 20%).So, the weakest link that tapping is steel pipe concrete bracket.Also there is no at present effective reinforcement measure, be difficult to guarantee the integer support intensity of steel pipe concrete bracket.
Utility model content
The purpose of this utility model is to provide a kind ofly to be carried out reinforcement, can guarantee the grouting port of steel pipe concrete bracket and the reinforced structure of steam vent of the integer support intensity of steel pipe concrete bracket the tapping of empty steel pipe.
The purpose of this utility model is achieved through the following technical solutions:
The grouting port of steel pipe concrete bracket of the present utility model and the reinforced structure of steam vent, comprise sky steel pipe, on described empty steel pipe, have grouting port and steam vent, on the outer wall of the empty steel pipe of described grouting port and steam vent both sides, be welded with and strengthen arc plate, in described grouting port and steam vent, be inserted with short tube.
The technical scheme being provided by above-mentioned the utility model can be found out, the grouting port of the steel pipe concrete bracket that the utility model embodiment provides and the reinforced structure of steam vent, on outer wall due to the empty steel pipe of grouting port and steam vent both sides, be welded with and strengthen arc plate, in grouting port and steam vent, be inserted with short tube, the tapping of empty steel pipe is adopted to reinforcement measure, can guarantee the integer support intensity of steel pipe concrete bracket.
Accompanying drawing explanation
The grouting port of steel pipe concrete bracket that Fig. 1 provides for the utility model embodiment and the structural representation of the reinforced structure of steam vent;
Fig. 2 is the broken section structural representation of short tube insert division in the utility model embodiment.
In figure: 1, empty steel pipe, 2, strengthen arc plate, 3, short tube, 4, round steel sealing of hole plug, 5, reinforcing bar.
The specific embodiment
To be described in further detail the utility model embodiment below.
The grouting port of steel pipe concrete bracket of the present utility model and the reinforced structure of steam vent, its preferably the specific embodiment be:
Comprise sky steel pipe, on described empty steel pipe, have grouting port and steam vent, on the outer wall of the empty steel pipe of described grouting port and steam vent both sides, be welded with and strengthen arc plate, in described grouting port and steam vent, be inserted with short tube.
In described short tube, be inserted with round steel sealing of hole plug.
The inner face of described round steel sealing of hole plug is welded with reinforcing bar.
The grouting port of steel pipe concrete bracket of the present utility model and the reinforced structure of steam vent, adopt reinforcement measure to the tapping of empty steel pipe support, can guarantee the integer support intensity of steel pipe concrete bracket.
The utility model mainly contains the reinforcement measure of three tappings: 1. in grouting port both sides, arc plate is strengthened in welding; 2. grouting port place interpolation slip casting short tube; (3) after slip casting, in slip casting short tube, insert round steel sealing of hole plug.The reinforcement measure at the reinforcement measure at steam vent place and grouting port place is basic identical.
Specific embodiment:
As shown in Figure 1 and Figure 2, the reinforcement measure at grouting port place is:
(1) arc plate is strengthened in the welding of grouting port both sides: in grouting port both sides, arc plate is strengthened in welding, increase the thickness of steel pipe of grouting port both sides, reduce grouting port edge stress intensity, avoid causing due to stress raisers the situation of whole unstability, improve the resistance to overturning of support.
(2) interpolation slip casting short tube: allow slip casting short tube share and bear certain support axial load, thus the stress concentration degree of reduction steel pipe support grouting port periphery.
(3) after slip casting, in slip casting short tube, insert round steel sealing of hole plug: allow round steel sealing of hole plug that the support axial load within the scope of grouting port is directly transmitted up and down, thereby reduce the stress concentration degree of steel pipe support grouting port periphery.
By three reinforcement measures, concur, made up that the stress that causes due to support perforate is concentrated and the long-pending minimizing problem of loaded section, the strengthening of support weak link, can improve bulk strength and the supporting capacity of support effectively.Reinforcement measure is simple and practical, and when component processing and installation, all easily operations, have accelerated speed of application, have reduced workman's labour intensity.
The above; it is only the preferably specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. the grouting port of a steel pipe concrete bracket and the reinforced structure of steam vent, comprise sky steel pipe, on described empty steel pipe, have grouting port and steam vent, it is characterized in that, on the outer wall of the empty steel pipe of described grouting port and steam vent both sides, be welded with and strengthen arc plate, in described grouting port and steam vent, be inserted with short tube.
2. the grouting port of steel pipe concrete bracket according to claim 1 and the reinforced structure of steam vent, is characterized in that, is inserted with round steel sealing of hole plug in described short tube.
3. the grouting port of steel pipe concrete bracket according to claim 2 and the reinforced structure of steam vent, is characterized in that, the inner face of described round steel sealing of hole plug is welded with reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320555133.6U CN203531919U (en) | 2013-09-06 | 2013-09-06 | Reinforcing structure of slip casting opening and air discharging hole of concrete filled steel tube support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320555133.6U CN203531919U (en) | 2013-09-06 | 2013-09-06 | Reinforcing structure of slip casting opening and air discharging hole of concrete filled steel tube support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203531919U true CN203531919U (en) | 2014-04-09 |
Family
ID=50418140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320555133.6U Expired - Fee Related CN203531919U (en) | 2013-09-06 | 2013-09-06 | Reinforcing structure of slip casting opening and air discharging hole of concrete filled steel tube support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203531919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485797A (en) * | 2013-09-06 | 2014-01-01 | 中国矿业大学(北京) | Reinforcing structure of grouting port and air exhausting hole of steel-bar concrete rack |
| CN105822330A (en) * | 2016-06-01 | 2016-08-03 | 山东深博巷道支护技术有限公司 | GFRP tube concrete support for underground engineering supporting and construction technology thereof |
-
2013
- 2013-09-06 CN CN201320555133.6U patent/CN203531919U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485797A (en) * | 2013-09-06 | 2014-01-01 | 中国矿业大学(北京) | Reinforcing structure of grouting port and air exhausting hole of steel-bar concrete rack |
| CN105822330A (en) * | 2016-06-01 | 2016-08-03 | 山东深博巷道支护技术有限公司 | GFRP tube concrete support for underground engineering supporting and construction technology 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20160906 |