CN203050730U - Retractable steel tube concrete support - Google Patents
Retractable steel tube concrete support Download PDFInfo
- Publication number
- CN203050730U CN203050730U CN 201320070460 CN201320070460U CN203050730U CN 203050730 U CN203050730 U CN 203050730U CN 201320070460 CN201320070460 CN 201320070460 CN 201320070460 U CN201320070460 U CN 201320070460U CN 203050730 U CN203050730 U CN 203050730U
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- China
- Prior art keywords
- steel tube
- tube concrete
- retractility
- arc
- porous metals
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Abstract
The utility model relates to a retractable steel tube concrete support which effectively solves the problems that rigidity is insufficient, an external load and plasticity are poor, stability is low, and labor and time are wasted. One end of one of every two adjacent arc-shaped steel tube concrete components is sleeved in one of two ends of each retractable porous metal joint, a plurality of the arc-shaped steel tube concrete components are sequentially connected in series through the retractable porous metal joints to form an integrated circular ring, sleeves are arranged outside the retractable porous metal joints, and the length of each sleeve is larger than that of each retractable porous metal joint. The retractable steel tube concrete support has good mechanical properties such as high strength and rigidity and high stability, can take the place of traditional reinforced concrete or molding steel template protective walls, is convenient and fast to construct, can save manufacturing cost, and is good in safety.
Description
Technical field
The utility model relates to mining, tunnel, tunnel, hand excavated pile (well) and uses support, particularly a kind of telescopic steel pipe concrete bracket.
Background technology
In mining, the tunnel, the tunnel, in the hand excavated pile engineerings such as (wells), owing to exist the country rock weakness, fragmentation causes its intensity low, be difficult to characteristics such as control from load difference and stability, yet in actual engineering, the result of use of U-shaped steel collapsible timbering commonly used is also not fully up to expectations, its thin-wall metal structure is because insufficient rigidity, externally loading ratio is responsive, poor plasticity, when being subjected to tunneling blasting technology, during factor affecting such as roadway surrounding rock character, easily cause the support local pressure, thereby cause support cripling and even whole unstability, yet the heavily stressed dead-soft rock gangway road for some complexity, even if adopt the method for combined supportings such as U-shaped steel and anchor spray also to be difficult to control the stability of country rock, in addition, in the dado engineering of hand excavated pile (well), traditional steel concrete supporting method construction inconvenience, time-consuming, therefore be badly in need of a kind of novel high strength support and combine for the novel support unit of control distortion separately or with other supporting means.
Summary of the invention
At above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides a kind of telescopic steel pipe concrete bracket, can be used for the supporting of mining, tunnel, tunnel, hand excavated pile (well) engineering, hard and soft combination, effectively solve insufficient rigidity, to external load and poor plasticity, the problem that stability is low, time-consuming.
The technical scheme that the utility model solves is, comprise the arc-shaped steel tube concrete component, retractility porous metals joint and sleeve pipe, one end of per two adjacent arc-shaped steel tube concrete components is set in the inside, two ends of retractility porous metals joint, a plurality of arc-shaped steel tube concrete components are cascaded successively through retractility porous metals joint and constitute the annular of one, there is sleeve pipe retractility porous metals joint outside, casing length is greater than retractility porous metals joint, play the effect that connects arc-shaped steel tube concrete component and retractility porous metals joint, strengthen the stressed of this position, earlier with the inner concreting of arc-shaped steel tube concrete component, after concrete setting, one end of arc-shaped steel tube concrete component is inserted in the end of retractility porous metals joint and sleeve pipe, be evenly equipped with hole on the retractility porous metals joint, along with the increase of external load begins to produce plastic strain, hole is compressed, distortion with suitable for surrounding rock, guaranteed strength, rigidity and stability are beneficial to safe handling.
The utlity model has intensity, rigidity and stable high mechanical property preferably, under the effect of side direction confined pressure, can obtain higher intensity and deformability, retractility porous metals joint design is simple, contain abundant hole, when external load reaches a certain numerical value, begin to produce plastic strain, can produce big distortion with the distortion of suitable for surrounding rock along with hole is compressed.Simultaneously, the utility model can replace traditional steel concrete or set shaped steel formwork retaining wall in hand excavated pile (well), and it is convenient to construct, and saves cost, and safety is good.
Description of drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is partial cross section stereogram of the present utility model.
Fig. 3 is the stereogram of the utility model sleeve pipe.
Fig. 4 is the stereogram of the utility model retractility porous metals joint.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.
By Fig. 1-shown in Figure 4, the utility model comprises arc-shaped steel tube concrete component 1, retractility porous metals joint 2 and sleeve pipe 3, one end of per two adjacent arc-shaped steel tube concrete components 1 is set in the inside, two ends of retractility porous metals joint 2, a plurality of arc-shaped steel tube concrete components are cascaded successively through retractility porous metals joint and constitute the annular of one, there is sleeve pipe 3 retractility porous metals joint 2 outsides, casing length is greater than retractility porous metals joint, play the effect that connects arc-shaped steel tube concrete component and retractility porous metals joint, strengthen the stressed of this position, earlier with the inner concreting of arc-shaped steel tube concrete component, after concrete setting, one end of arc-shaped steel tube concrete component is inserted in the end of retractility porous metals joint and sleeve pipe, be evenly equipped with hole on the retractility porous metals joint, along with the increase of external load begins to produce plastic strain, hole is compressed, distortion with suitable for surrounding rock, guaranteed strength, rigidity and stability are beneficial to safe handling.
Described arc-shaped steel tube concrete component 1 is to have filled concrete-core column 7 in the steel pipe 6 by circular arc to constitute, and retractility porous metals joint 2 is made of the body 4 outer round metal ring bodies 5 that are set with the hollow multiple hole; There is preformed hole 8 at the two ends of described arc-shaped steel tube concrete component 1, and latch or the pin 9 of sleeve pipe 3 spacing usefulness arranged in the preformed hole, pull out the dismountable support of latch; The interior diameter of described body 4 is greater than the external diameter of steel pipe 6, and the end of steel pipe 6 is sleeved in the body 4.
Mode of occupation of the present utility model is, before support is installed, the steel duct concreting, after concrete setting, one end of arc-shaped steel tube concrete component is inserted in the end of retractility porous metals joint and sleeve pipe, after treating that the binding of retractility porous metals joint and concrete filled steel tubular member finishes, it is spacing with sleeve pipe that latch 9 is installed, and finishes telescopic steel pipe concrete bracket and install.When support is removed, latch is taken out, lay down sleeve pipe, porous metals joint, concrete filled steel tubular member successively, in order to reuse, realized the quick dismounting of support.
The utility model novelty simple in structure, dependable performance, for the supporting of mining, tunnel, tunnel, hand excavated pile (well) engineering provides firm---gentle integrated, telescopic steel pipe concrete bracket, thoroughly solved the prior art deficiency, delay or stoped the bending deformation of thin-wall steel tube, improve the resistance to overturning of member, can obtain higher intensity and deformability.
Claims (4)
1. telescopic steel pipe concrete bracket, comprise arc-shaped steel tube concrete component (1), retractility porous metals joint (2) and sleeve pipe (3), it is characterized in that, one end of per two adjacent arc-shaped steel tube concrete components (1) is set in the inside, two ends of retractility porous metals joint (2), a plurality of arc-shaped steel tube concrete components are cascaded successively through retractility porous metals joint and constitute the annular of one, there is sleeve pipe (3) retractility porous metals joint (2) outside, and casing length is greater than retractility porous metals joint.
2. telescopic steel pipe concrete bracket according to claim 1, it is characterized in that, described arc-shaped steel tube concrete component (1) is to have filled concrete-core column (7) in the steel pipe (6) by circular arc to constitute, and retractility porous metals joint (2) is made of the outer round metal ring body (5) that is set with the hollow multiple hole of body (4).
3. telescopic steel pipe concrete bracket according to claim 1 is characterized in that, there is preformed hole (8) at the two ends of described arc-shaped steel tube concrete component (1), and latch or the pin (9) of the spacing usefulness of sleeve pipe (3) arranged in the preformed hole.
4. telescopic steel pipe concrete bracket according to claim 2 is characterized in that, the interior diameter of described body (4) is greater than the external diameter of steel pipe (6), and the end of steel pipe (6) is sleeved in the body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320070460 CN203050730U (en) | 2013-02-07 | 2013-02-07 | Retractable steel tube concrete support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320070460 CN203050730U (en) | 2013-02-07 | 2013-02-07 | Retractable steel tube concrete support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050730U true CN203050730U (en) | 2013-07-10 |
Family
ID=48733694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320070460 Expired - Fee Related CN203050730U (en) | 2013-02-07 | 2013-02-07 | Retractable steel tube concrete support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050730U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061783A (en) * | 2013-02-07 | 2013-04-24 | 河南理工大学 | Retractable steel tube concrete support |
| CN103510969A (en) * | 2013-10-11 | 2014-01-15 | 山东科技大学 | Concrete-filled steel tube support continuously progressive pressure yielding contractible device and application method thereof |
| CN103670468A (en) * | 2013-12-04 | 2014-03-26 | 中国矿业大学(北京) | Pressing-allowing bottom-corner casing pipe |
| CN108756950A (en) * | 2018-07-03 | 2018-11-06 | 中国矿业大学 | One kind being based on the mechanical support unit coupling supporting structure of high constant-resistance and construction method |
| CN110593275A (en) * | 2019-09-04 | 2019-12-20 | 浙江化工工程地质勘察院有限公司 | Foundation pit support system |
-
2013
- 2013-02-07 CN CN 201320070460 patent/CN203050730U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061783A (en) * | 2013-02-07 | 2013-04-24 | 河南理工大学 | Retractable steel tube concrete support |
| CN103510969A (en) * | 2013-10-11 | 2014-01-15 | 山东科技大学 | Concrete-filled steel tube support continuously progressive pressure yielding contractible device and application method thereof |
| CN103510969B (en) * | 2013-10-11 | 2016-01-27 | 山东科技大学 | Steel pipe concrete bracket continues the progressive pressure that allows can compression apparatus and using method thereof |
| CN103670468A (en) * | 2013-12-04 | 2014-03-26 | 中国矿业大学(北京) | Pressing-allowing bottom-corner casing pipe |
| CN103670468B (en) * | 2013-12-04 | 2015-12-02 | 中国矿业大学(北京) | Allow pressure type base angle sleeve pipe |
| CN108756950A (en) * | 2018-07-03 | 2018-11-06 | 中国矿业大学 | One kind being based on the mechanical support unit coupling supporting structure of high constant-resistance and construction method |
| CN110593275A (en) * | 2019-09-04 | 2019-12-20 | 浙江化工工程地质勘察院有限公司 | Foundation pit support system |
| CN110593275B (en) * | 2019-09-04 | 2021-03-19 | 浙江化工工程地质勘察院有限公司 | Foundation pit support system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20140207 |