CN103061783B - Retractable steel tube concrete support - Google Patents
Retractable steel tube concrete support Download PDFInfo
- Publication number
- CN103061783B CN103061783B CN201310048519.2A CN201310048519A CN103061783B CN 103061783 B CN103061783 B CN 103061783B CN 201310048519 A CN201310048519 A CN 201310048519A CN 103061783 B CN103061783 B CN 103061783B
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- Prior art keywords
- steel tube
- tube concrete
- retractility
- porous metals
- arc
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Abstract
The invention relates to a retractable steel tube concrete support, and effectively solves the problems of insufficient rigidity, poor outer load and plasticity, low stability, labour waste and time waste. One ends of every two adjacent circular steel tube concrete components are respectively sleeved into the inner sides of the two ends of each retractable porous metal joint; a plurality of circular steel tube concrete components are sequentially connected in series by virtue of the retractable porous metal joints to form an integrated circular shape; sleeves are arranged outside the retractable porous metal joints; and the length of each sleeve is more than that of each retractable porous metal joint and the sleeves play a role in a function of connecting the circular steel tube concrete components and the retractable porous metal joints to reinforce the stress of the part. The retractable steel tube concrete support has the mechanical property of high strength, high rigidity, high stability and the like, and can replace the traditional reinforced concrete or set-shaped steel formwork retaining walls, so that the retractable steel tube concrete support is convenient to construct, low in price and good in security.
Description
Technical field
The present invention relates to mining, tunnel, tunnel, support, particularly a kind of telescopic steel pipe concrete bracket for hand excavated pile (well).
Background technology
In mining, tunnel, tunnel, in the engineerings such as hand excavated pile (well), owing to existing country rock weakness, fragmentation causes its intensity low, from load, poor and stability is difficult to the features such as control, yet in Practical Project, the result of use of conventional U-shaped steel collapsible timbering is also not fully up to expectations, its thin-wall metal structure is due to insufficient rigidity, externally loading ratio is more responsive, poor plasticity, when being subject to tunneling blasting technology, when the factors such as roadway surrounding rock character affect, easily cause support local pressure, thereby cause support cripling and even whole unstability, yet the heavily stressed utmost point soft-rock tunnel for some complexity, even if adopt the method for the combined supportings such as U-shaped steel and shotcrete to be also 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 separately or combine for controlling the New Supporting member of distortion with other supporting means.
Summary of the invention
For above-mentioned situation, for overcoming prior art defect, the present invention's object is just to provide 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, stability is low, time-consuming problem.
The technical scheme that the present invention solves is, comprise arc-shaped steel tube concrete component, retractility porous metals joint and sleeve pipe, one end of every two adjacent arc-shaped steel tube concrete components is set in the inside, two ends of retractility porous metals joint, the annular that a plurality of arc-shaped steel tube concrete components are cascaded successively and are integrally formed through retractility porous metals joint, 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, first by 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 to the end of retractility porous metals joint and sleeve pipe, on retractility porous metals joint, be evenly equipped with hole, along with the increase of external load starts to produce plastic strain, hole is compressed, distortion with suitable for surrounding rock, guaranteed strength, rigidity and stability, be beneficial to safe handling.
The present invention has the mechanical properties such as good intensity, rigidity and stability height, 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, start to produce plastic strain, along with hole is compressed, can produce large distortion with the distortion of suitable for surrounding rock.Meanwhile, the present invention can replace traditional steel concrete or set shaped steel formwork retaining wall in hand excavated pile (well), constructs convenient, saves cost, and safety is good.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is partial cross section stereogram of the present invention.
Fig. 3 is the stereogram of sleeve pipe of the present invention.
Fig. 4 is the stereogram of retractility porous metals joint of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Shown in Fig. 1-Fig. 4, the present invention includes arc-shaped steel tube concrete component 1, retractility porous metals joint 2 and sleeve pipe 3, one end of every two adjacent arc-shaped steel tube concrete components 1 is set in the inside, two ends of retractility porous metals joint 2, the annular that a plurality of arc-shaped steel tube concrete components are cascaded successively and are integrally formed through retractility porous metals joint, 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, first by 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 to the end of retractility porous metals joint and sleeve pipe, on retractility porous metals joint, be evenly equipped with hole, along with the increase of external load starts to produce plastic strain, hole is compressed, distortion with suitable for surrounding rock, guaranteed strength, rigidity and stability, be beneficial to safe handling.
Described arc-shaped steel tube concrete component 1 is in the steel pipe 6 by circular arc, to have filled concrete-core column 7 to form, and retractility porous metals joint 2 consists of the outer round metal ring body 5 that is set with hollow multiple hole of body 4; There is preformed hole 8 at the two ends of described arc-shaped steel tube concrete component 1, have latch or the pin 9 of sleeve pipe 3 spacing use in 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 body 4.
Service condition of the present invention is, before support is installed, steel duct concreting, after concrete setting, one end of arc-shaped steel tube concrete component is inserted in to the end of retractility porous metals joint and sleeve pipe, after treating that retractility porous metals joint and concrete filled steel tubular member link, latch 9 is installed by casing limit, is completed telescopic steel pipe concrete bracket and install.When support is removed, latch is taken out, lay down successively sleeve pipe, porous metals joint, concrete filled steel tubular member, to reuse, the fast dismantling of having realized support removes.
The present invention's novelty simple in structure, dependable performance, for the supporting of mining, tunnel, tunnel, hand excavated pile (well) engineering provides firm---soft integrated, telescopic steel pipe concrete bracket, thoroughly solved prior art not enough, 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. a 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 every two adjacent arc-shaped steel tube concrete components (1) is set in the inside, two ends of retractility porous metals joint (2), the annular that a plurality of arc-shaped steel tube concrete components are cascaded successively and are integrally formed through retractility porous metals joint, there is sleeve pipe (3) retractility porous metals joint (2) outside, casing length is greater than retractility porous metals joint, first by 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 to the end of retractility porous metals joint and sleeve pipe, on retractility porous metals joint, be evenly equipped with hole, along with the increase of external load starts to produce plastic strain, hole is compressed, distortion with suitable for surrounding rock.
2. telescopic steel pipe concrete bracket according to claim 1, it is characterized in that, described arc-shaped steel tube concrete component (1) is in the steel pipe (6) by circular arc, to have filled concrete-core column (7) to form, and retractility porous metals joint (2) consists of the outer round metal ring body (5) that is set with 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), has latch or the pin (9) of the spacing use of sleeve pipe (3) in 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 body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048519.2A CN103061783B (en) | 2013-02-07 | 2013-02-07 | Retractable steel tube concrete support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048519.2A CN103061783B (en) | 2013-02-07 | 2013-02-07 | Retractable steel tube concrete support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103061783A CN103061783A (en) | 2013-04-24 |
| CN103061783B true CN103061783B (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310048519.2A Expired - Fee Related CN103061783B (en) | 2013-02-07 | 2013-02-07 | Retractable steel tube concrete support |
Country Status (1)
| Country | Link |
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| CN (1) | CN103061783B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334440B (en) * | 2013-07-04 | 2015-09-30 | 中国地质大学（北京） | Detachable circular foundation pit suspension device and equipment |
| CN103615253B (en) * | 2013-11-21 | 2016-04-27 | 中国地质大学（北京） | Shield cutter service work well suspension device and equipment |
| CN106801611B (en) * | 2015-11-26 | 2019-03-22 | 山东科技大学 | A kind of deep tunnel supporting new concrete bracket |
| CN105569695B (en) * | 2015-12-16 | 2018-11-23 | 河南理工大学 | Steel pipe concrete bracket slip casting mouth sealing device |
| CN106968687B (en) * | 2017-04-01 | 2020-04-14 | 湖南科技大学 | Closed type circular ring yielding support device and method for mining roadway of steep coal seam |
| CN107246268B (en) * | 2017-08-02 | 2019-03-01 | 李信斌 | A kind of shaft sinking gib equipment |
| 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 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072018A (en) * | 1975-04-30 | 1978-02-07 | Alvarez Calderon Alberto | Tunnel support structure and method |
| JP3308916B2 (en) * | 1998-11-11 | 2002-07-29 | 株式会社ピー・エス | Ring cable insertion device for shield segment |
| CN101126321B (en) * | 2006-08-18 | 2010-04-21 | 山东大学 | Expansion anchor rod |
| CN101592033B (en) * | 2009-07-03 | 2011-12-28 | 北京工业大学 | Assembly form and supporting method for in-soil assembled plastic pipes |
| CN201650307U (en) * | 2010-04-16 | 2010-11-24 | 北京工业大学 | Connecting structure of longitudinal separation seams of segments of plastic pipeline for being assembled in soil |
| CN101963060B (en) * | 2010-10-15 | 2012-07-11 | 西南交通大学 | Tunnel construction method based on steel tube arch-rib supporting structure |
| CN102287209B (en) * | 2011-07-29 | 2013-06-05 | 中铁一局集团有限公司 | Tunnel arch center installation operation vehicle |
| CN203050730U (en) * | 2013-02-07 | 2013-07-10 | 河南理工大学 | Retractable steel tube concrete support |
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2013
- 2013-02-07 CN CN201310048519.2A patent/CN103061783B/en not_active Expired - Fee Related
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| CN103061783A (en) | 2013-04-24 |
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