CN103485797A - Reinforcing structure of grouting port and air exhausting hole of steel-bar concrete rack - Google Patents
Reinforcing structure of grouting port and air exhausting hole of steel-bar concrete rack Download PDFInfo
- Publication number
- CN103485797A CN103485797A CN201310403879.XA CN201310403879A CN103485797A CN 103485797 A CN103485797 A CN 103485797A CN 201310403879 A CN201310403879 A CN 201310403879A CN 103485797 A CN103485797 A CN 103485797A
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- CN
- China
- Prior art keywords
- grouting port
- steel pipe
- steel
- steam vent
- air exhausting
- 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.)
- Pending
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000002787 reinforcement Effects 0.000 description 10
- 238000007569 slipcasting Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 6
- 238000005065 mining Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention discloses a reinforcing structure of a grouting port and air exhausting hole of a steel-bar concrete rack. The reinforcing structure comprises a hollow steel tube, the grouting port and the air exhausting hole are formed in the hollow steel tube, a reinforcing arc plate is welded on the outer wall of the hollow steel tube on two sides of the grouting port and the air exhausting hole, and a short tube is inserted in the grouting port and the air exhausting hole. A round steel sealing plug is inserted in the short tube and comprises a round steel short segment, and a steel bar handle is welded on the inner end face of the round steel short segment. The reinforcing measure is applied on the hole of the hollow steel tube rack, and entire supporting strength of the steel-bar concrete rack can be guaranteed.
Description
Technical field
The present invention relates to a kind of steel pipe concrete bracket, relate 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, to deep mining, the 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, the roadway maintenance difficulty, geological disaster increases, and the stability problem of roadway surrounding rock and supporting and protection structure has become the matter of utmost importance of restriction coal resources to 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, the 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, generally is 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, on the one hand at tapping, will produce larger stress and concentrate, effective pressure-bearing basal area minimizing on empty steel pipe cross section (approximately 20%) is located in aperture on the other hand.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.
Summary of the invention
The purpose of this invention is to provide a kind of tapping to empty steel pipe carries out reinforcement, can guarantee the grouting port of steel pipe concrete bracket of integer support intensity of steel pipe concrete bracket and the reinforced structure of steam vent.
The objective of the invention is to be achieved through the following technical solutions:
The grouting port of steel pipe concrete bracket of the present invention and the reinforced structure of steam vent, comprise the sky steel pipe, have grouting port and steam vent on described empty steel pipe, be welded with on the outer wall of the empty steel pipe of described grouting port and steam vent both sides and strengthen the arc plate, in described grouting port and steam vent, be inserted with short tube.
As seen from the above technical solution provided by the invention, the grouting port of the steel pipe concrete bracket that the embodiment of the present invention provides and the reinforced structure of steam vent, be welded with on outer wall due to the empty steel pipe of grouting port and steam vent both sides and strengthen the arc plate, be inserted with short tube in grouting port and steam vent, tapping to empty steel pipe adopts reinforcement measure, can guarantee the integer support intensity of steel pipe concrete bracket.
The accompanying drawing explanation
The structural representation of the grouting port of the steel pipe concrete bracket that Fig. 1 provides for the embodiment of the present invention and the reinforced structure of steam vent;
The broken section structural representation that Fig. 2 is short tube insert division in the embodiment of the present invention.
In figure: 1, empty steel pipe, 2, strengthen the arc plate, 3, short tube, 4, round steel sealing of hole plug, 5, reinforcing bar.
The specific embodiment
Below will be described in further detail the embodiment of the present invention.
The grouting port of steel pipe concrete bracket of the present invention and the reinforced structure of steam vent, its preferably the specific embodiment be:
Comprise the sky steel pipe, on described empty steel pipe, have grouting port and steam vent, be welded with on the outer wall of the empty steel pipe of described grouting port and steam vent both sides and strengthen the arc plate, in described grouting port and steam vent, be inserted with short tube.
Be inserted with round steel sealing of hole plug in described short tube.
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 invention and the reinforced structure of steam vent, to the tapping employing reinforcement measure of empty steel pipe support, can guarantee the integer support intensity of steel pipe concrete bracket.
The present invention mainly contains the reinforcement measure of three tappings: 1. in the grouting port both sides, the arc plate is strengthened in welding; 2. grouting port place interpolation slip casting short tube; (3) insert round steel sealing of hole plug after slip casting in the slip casting short tube.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) the arc plate is strengthened in the welding of grouting port both sides: in the grouting port both sides, the 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 the 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) insert round steel sealing of hole plug after slip casting in the slip casting short tube: allow round steel sealing of hole plug that the support axial load in the grouting port scope is directly transmitted up and down, thereby reduce the stress concentration degree of steel pipe support grouting port periphery.
Concur by three reinforcement measures, made up that the stress that causes due to the 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, accelerated speed of application, reduced workman's labour intensity.
The above; be only the present invention's specific embodiment preferably, but protection scope of the present invention is not limited to this, anyly is familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (3)
1. the reinforced structure of the grouting port of a steel pipe concrete bracket and steam vent, comprise the sky steel pipe, have grouting port and steam vent on described empty steel pipe, it is characterized in that, be welded with on the outer wall of the empty steel pipe of described grouting port and steam vent both sides and strengthen the arc plate, in described grouting port and steam vent, be inserted with short tube.
2. the reinforced structure of the grouting port of steel pipe concrete bracket according to claim 1 and steam vent, is characterized in that, is inserted with round steel sealing of hole plug in described short tube.
3. the reinforced structure of the grouting port of steel pipe concrete bracket according to claim 2 and 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 |
|---|---|---|---|
| CN201310403879.XA CN103485797A (en) | 2013-09-06 | 2013-09-06 | Reinforcing structure of grouting port and air exhausting hole of steel-bar concrete rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310403879.XA CN103485797A (en) | 2013-09-06 | 2013-09-06 | Reinforcing structure of grouting port and air exhausting hole of steel-bar concrete rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103485797A true CN103485797A (en) | 2014-01-01 |
Family
ID=49826342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310403879.XA Pending CN103485797A (en) | 2013-09-06 | 2013-09-06 | Reinforcing structure of grouting port and air exhausting hole of steel-bar concrete rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103485797A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593486A (en) * | 2017-01-18 | 2017-04-26 | 山东建筑大学 | Steel pipe and concrete combined bracket used for roadway junction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163289Y (en) * | 1993-07-02 | 1994-04-27 | 张卓然 | Split saddle reinforced board |
| JPH06128006A (en) * | 1992-10-15 | 1994-05-10 | Yoshiji Matsumoto | Concrete for filling in steel frame and concrete-filled steel frame segment |
| CN1551963A (en) * | 2000-09-08 | 2004-12-01 | () | Method of reinforcing an existing metal structure, method of reinforcing pipes and method of addition of spur lines to pipelines |
| CN1587557A (en) * | 2004-08-11 | 2005-03-02 | 上海市政工程设计研究院 | Connecting method for pipeline branch pipe |
| CN203531919U (en) * | 2013-09-06 | 2014-04-09 | 中国矿业大学(北京) | Reinforcing structure of slip casting opening and air discharging hole of concrete filled steel tube support |
-
2013
- 2013-09-06 CN CN201310403879.XA patent/CN103485797A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06128006A (en) * | 1992-10-15 | 1994-05-10 | Yoshiji Matsumoto | Concrete for filling in steel frame and concrete-filled steel frame segment |
| CN2163289Y (en) * | 1993-07-02 | 1994-04-27 | 张卓然 | Split saddle reinforced board |
| CN1551963A (en) * | 2000-09-08 | 2004-12-01 | () | Method of reinforcing an existing metal structure, method of reinforcing pipes and method of addition of spur lines to pipelines |
| CN1587557A (en) * | 2004-08-11 | 2005-03-02 | 上海市政工程设计研究院 | Connecting method for pipeline branch pipe |
| CN203531919U (en) * | 2013-09-06 | 2014-04-09 | 中国矿业大学(北京) | Reinforcing structure of slip casting opening and air discharging hole of concrete filled steel tube support |
Non-Patent Citations (1)
| Title |
|---|
| 高延法等: "钢管混凝土支架注浆孔补强技术数值模拟分析", 《隧道建设》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593486A (en) * | 2017-01-18 | 2017-04-26 | 山东建筑大学 | Steel pipe and concrete combined bracket used for roadway junction |
| CN106593486B (en) * | 2017-01-18 | 2018-07-17 | 山东建筑大学 | A kind of roadway crossing point concrete filled steel tube sectional shelf-unit |
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Application publication date: 20140101 |